diff -druNp linux-libre-3.4-gnu1/arch/alpha/include/asm/atomic.h linux-libre-3.4.53-gnu1/arch/alpha/include/asm/atomic.h
--- linux-libre-3.4-gnu1/arch/alpha/include/asm/atomic.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/alpha/include/asm/atomic.h	2013-07-13 14:03:57.000000000 -0400
@@ -14,8 +14,8 @@
  */
 
 
-#define ATOMIC_INIT(i)		( (atomic_t) { (i) } )
-#define ATOMIC64_INIT(i)	( (atomic64_t) { (i) } )
+#define ATOMIC_INIT(i)		{ (i) }
+#define ATOMIC64_INIT(i)	{ (i) }
 
 #define atomic_read(v)		(*(volatile int *)&(v)->counter)
 #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
diff -druNp linux-libre-3.4-gnu1/arch/alpha/include/asm/fpu.h linux-libre-3.4.53-gnu1/arch/alpha/include/asm/fpu.h
--- linux-libre-3.4-gnu1/arch/alpha/include/asm/fpu.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/alpha/include/asm/fpu.h	2013-07-13 14:03:57.000000000 -0400
@@ -1,7 +1,9 @@
 #ifndef __ASM_ALPHA_FPU_H
 #define __ASM_ALPHA_FPU_H
 
+#ifdef __KERNEL__
 #include <asm/special_insns.h>
+#endif
 
 /*
  * Alpha floating-point control register defines:
diff -druNp linux-libre-3.4-gnu1/arch/alpha/include/asm/socket.h linux-libre-3.4.53-gnu1/arch/alpha/include/asm/socket.h
--- linux-libre-3.4-gnu1/arch/alpha/include/asm/socket.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/alpha/include/asm/socket.h	2013-07-13 14:03:57.000000000 -0400
@@ -76,9 +76,11 @@
 /* Instruct lower device to use last 4-bytes of skb data as FCS */
 #define SO_NOFCS		43
 
+#ifdef __KERNEL__
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
 #define SOCK_NONBLOCK	0x40000000
+#endif /* __KERNEL__ */
 
 #endif /* _ASM_SOCKET_H */
diff -druNp linux-libre-3.4-gnu1/arch/alpha/kernel/process.c linux-libre-3.4.53-gnu1/arch/alpha/kernel/process.c
--- linux-libre-3.4-gnu1/arch/alpha/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/alpha/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -28,6 +28,7 @@
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 
 #include <asm/reg.h>
 #include <asm/uaccess.h>
@@ -54,8 +55,11 @@ cpu_idle(void)
 		/* FIXME -- EV6 and LCA45 know how to power down
 		   the CPU.  */
 
+		rcu_idle_enter();
 		while (!need_resched())
 			cpu_relax();
+
+		rcu_idle_exit();
 		schedule();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/alpha/kernel/sys_nautilus.c linux-libre-3.4.53-gnu1/arch/alpha/kernel/sys_nautilus.c
--- linux-libre-3.4-gnu1/arch/alpha/kernel/sys_nautilus.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/alpha/kernel/sys_nautilus.c	2013-07-13 14:03:57.000000000 -0400
@@ -188,6 +188,10 @@ nautilus_machine_check(unsigned long vec
 extern void free_reserved_mem(void *, void *);
 extern void pcibios_claim_one_bus(struct pci_bus *);
 
+static struct resource irongate_io = {
+	.name	= "Irongate PCI IO",
+	.flags	= IORESOURCE_IO,
+};
 static struct resource irongate_mem = {
 	.name	= "Irongate PCI MEM",
 	.flags	= IORESOURCE_MEM,
@@ -209,6 +213,7 @@ nautilus_init_pci(void)
 
 	irongate = pci_get_bus_and_slot(0, 0);
 	bus->self = irongate;
+	bus->resource[0] = &irongate_io;
 	bus->resource[1] = &irongate_mem;
 
 	pci_bus_size_bridges(bus);
diff -druNp linux-libre-3.4-gnu1/arch/arm/boot/compressed/head.S linux-libre-3.4.53-gnu1/arch/arm/boot/compressed/head.S
--- linux-libre-3.4-gnu1/arch/arm/boot/compressed/head.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/boot/compressed/head.S	2013-07-13 14:03:57.000000000 -0400
@@ -648,6 +648,7 @@ __armv7_mmu_cache_on:
 		mcrne	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs
 #endif
 		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
+		bic	r0, r0, #1 << 28	@ clear SCTLR.TRE
 		orr	r0, r0, #0x5000		@ I-cache enable, RR cache replacement
 		orr	r0, r0, #0x003c		@ write buffer
 #ifdef CONFIG_MMU
diff -druNp linux-libre-3.4-gnu1/arch/arm/boot/dts/imx53-ard.dts linux-libre-3.4.53-gnu1/arch/arm/boot/dts/imx53-ard.dts
--- linux-libre-3.4-gnu1/arch/arm/boot/dts/imx53-ard.dts	2013-05-01 21:50:46.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/boot/dts/imx53-ard.dts	2013-07-13 18:20:15.000000000 -0400
@@ -70,10 +70,30 @@
 			interrupt-parent = <&gpio2>;
 			interrupts = <31>;
 			reg-io-width = <4>;
+			/*
+			 * VDD33A and VDDVARIO of LAN9220 are supplied by
+			 * SW4_3V3 of LTC3589.  Before the regulator driver
+			 * for this PMIC is available, we use a fixed dummy
+			 * 3V3 regulator to get LAN9220 driver probing work.
+			 */
+			vdd33a-supply = <&reg_3p3v>;
+			vddvario-supply = <&reg_3p3v>;
 			smsc,irq-push-pull;
 		};
 	};
 
+	regulators {
+		compatible = "simple-bus";
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/boot/dts/tegra-cardhu.dts linux-libre-3.4.53-gnu1/arch/arm/boot/dts/tegra-cardhu.dts
--- linux-libre-3.4-gnu1/arch/arm/boot/dts/tegra-cardhu.dts	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/boot/dts/tegra-cardhu.dts	2013-07-13 14:03:57.000000000 -0400
@@ -64,7 +64,7 @@
 		status = "disable";
 	};
 
-	sdhci@78000400 {
+	sdhci@78000600 {
 		support-8bit;
 	};
 };
diff -druNp linux-libre-3.4-gnu1/arch/arm/configs/at91sam9g45_defconfig linux-libre-3.4.53-gnu1/arch/arm/configs/at91sam9g45_defconfig
--- linux-libre-3.4-gnu1/arch/arm/configs/at91sam9g45_defconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/configs/at91sam9g45_defconfig	2013-07-13 14:03:57.000000000 -0400
@@ -173,7 +173,6 @@ CONFIG_MMC=y
 # CONFIG_MMC_BLOCK_BOUNCE is not set
 CONFIG_SDIO_UART=m
 CONFIG_MMC_ATMELMCI=y
-CONFIG_MMC_ATMELMCI_DMA=y
 CONFIG_LEDS_ATMEL_PWM=y
 CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_TRIGGER_TIMER=y
diff -druNp linux-libre-3.4-gnu1/arch/arm/configs/mxs_defconfig linux-libre-3.4.53-gnu1/arch/arm/configs/mxs_defconfig
--- linux-libre-3.4-gnu1/arch/arm/configs/mxs_defconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/configs/mxs_defconfig	2013-07-13 14:03:57.000000000 -0400
@@ -32,7 +32,6 @@ CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_AEABI=y
-CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
 CONFIG_AUTO_ZRELADDR=y
 CONFIG_FPE_NWFPE=y
 CONFIG_NET=y
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/assembler.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/assembler.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/assembler.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/assembler.h	2013-07-13 14:03:57.000000000 -0400
@@ -320,4 +320,12 @@
 	.size \name , . - \name
 	.endm
 
+	.macro check_uaccess, addr:req, size:req, limit:req, tmp:req, bad:req
+#ifndef CONFIG_CPU_USE_DOMAINS
+	adds	\tmp, \addr, #\size - 1
+	sbcccs	\tmp, \tmp, \limit
+	bcs	\bad
+#endif
+	.endm
+
 #endif /* __ASM_ASSEMBLER_H__ */
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/cacheflush.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/cacheflush.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/cacheflush.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/cacheflush.h	2013-07-13 14:03:57.000000000 -0400
@@ -215,7 +215,9 @@ static inline void vivt_flush_cache_mm(s
 static inline void
 vivt_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
 {
-	if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm)))
+	struct mm_struct *mm = vma->vm_mm;
+
+	if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm)))
 		__cpuc_flush_user_range(start & PAGE_MASK, PAGE_ALIGN(end),
 					vma->vm_flags);
 }
@@ -223,7 +225,9 @@ vivt_flush_cache_range(struct vm_area_st
 static inline void
 vivt_flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsigned long pfn)
 {
-	if (cpumask_test_cpu(smp_processor_id(), mm_cpumask(vma->vm_mm))) {
+	struct mm_struct *mm = vma->vm_mm;
+
+	if (!mm || cpumask_test_cpu(smp_processor_id(), mm_cpumask(mm))) {
 		unsigned long addr = user_addr & PAGE_MASK;
 		__cpuc_flush_user_range(addr, addr + PAGE_SIZE, vma->vm_flags);
 	}
@@ -249,7 +253,7 @@ extern void flush_cache_page(struct vm_a
  * Harvard caches are synchronised for the user space address range.
  * This is used for the ARM private sys_cacheflush system call.
  */
-#define flush_cache_user_range(vma,start,end) \
+#define flush_cache_user_range(start,end) \
 	__cpuc_coherent_user_range((start) & PAGE_MASK, PAGE_ALIGN(end))
 
 /*
@@ -301,9 +305,7 @@ static inline void flush_anon_page(struc
 }
 
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
-static inline void flush_kernel_dcache_page(struct page *page)
-{
-}
+extern void flush_kernel_dcache_page(struct page *);
 
 #define flush_dcache_mmap_lock(mapping) \
 	spin_lock_irq(&(mapping)->tree_lock)
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/hwcap.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/hwcap.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/hwcap.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/hwcap.h	2013-07-13 14:03:57.000000000 -0400
@@ -18,11 +18,12 @@
 #define HWCAP_THUMBEE	(1 << 11)
 #define HWCAP_NEON	(1 << 12)
 #define HWCAP_VFPv3	(1 << 13)
-#define HWCAP_VFPv3D16	(1 << 14)
+#define HWCAP_VFPv3D16	(1 << 14)	/* also set for VFPv4-D16 */
 #define HWCAP_TLS	(1 << 15)
 #define HWCAP_VFPv4	(1 << 16)
 #define HWCAP_IDIVA	(1 << 17)
 #define HWCAP_IDIVT	(1 << 18)
+#define HWCAP_VFPD32	(1 << 19)	/* set if VFP has 32 regs (not 16) */
 #define HWCAP_IDIV	(HWCAP_IDIVA | HWCAP_IDIVT)
 
 #if defined(__KERNEL__)
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/mutex.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/mutex.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/mutex.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/mutex.h	2013-07-13 14:03:57.000000000 -0400
@@ -7,121 +7,10 @@
  */
 #ifndef _ASM_MUTEX_H
 #define _ASM_MUTEX_H
-
-#if __LINUX_ARM_ARCH__ < 6
-/* On pre-ARMv6 hardware the swp based implementation is the most efficient. */
-# include <asm-generic/mutex-xchg.h>
-#else
-
-/*
- * Attempting to lock a mutex on ARMv6+ can be done with a bastardized
- * atomic decrement (it is not a reliable atomic decrement but it satisfies
- * the defined semantics for our purpose, while being smaller and faster
- * than a real atomic decrement or atomic swap.  The idea is to attempt
- * decrementing the lock value only once.  If once decremented it isn't zero,
- * or if its store-back fails due to a dispute on the exclusive store, we
- * simply bail out immediately through the slow path where the lock will be
- * reattempted until it succeeds.
- */
-static inline void
-__mutex_fastpath_lock(atomic_t *count, void (*fail_fn)(atomic_t *))
-{
-	int __ex_flag, __res;
-
-	__asm__ (
-
-		"ldrex	%0, [%2]	\n\t"
-		"sub	%0, %0, #1	\n\t"
-		"strex	%1, %0, [%2]	"
-
-		: "=&r" (__res), "=&r" (__ex_flag)
-		: "r" (&(count)->counter)
-		: "cc","memory" );
-
-	__res |= __ex_flag;
-	if (unlikely(__res != 0))
-		fail_fn(count);
-}
-
-static inline int
-__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *))
-{
-	int __ex_flag, __res;
-
-	__asm__ (
-
-		"ldrex	%0, [%2]	\n\t"
-		"sub	%0, %0, #1	\n\t"
-		"strex	%1, %0, [%2]	"
-
-		: "=&r" (__res), "=&r" (__ex_flag)
-		: "r" (&(count)->counter)
-		: "cc","memory" );
-
-	__res |= __ex_flag;
-	if (unlikely(__res != 0))
-		__res = fail_fn(count);
-	return __res;
-}
-
 /*
- * Same trick is used for the unlock fast path. However the original value,
- * rather than the result, is used to test for success in order to have
- * better generated assembly.
- */
-static inline void
-__mutex_fastpath_unlock(atomic_t *count, void (*fail_fn)(atomic_t *))
-{
-	int __ex_flag, __res, __orig;
-
-	__asm__ (
-
-		"ldrex	%0, [%3]	\n\t"
-		"add	%1, %0, #1	\n\t"
-		"strex	%2, %1, [%3]	"
-
-		: "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag)
-		: "r" (&(count)->counter)
-		: "cc","memory" );
-
-	__orig |= __ex_flag;
-	if (unlikely(__orig != 0))
-		fail_fn(count);
-}
-
-/*
- * If the unlock was done on a contended lock, or if the unlock simply fails
- * then the mutex remains locked.
- */
-#define __mutex_slowpath_needs_to_unlock()	1
-
-/*
- * For __mutex_fastpath_trylock we use another construct which could be
- * described as a "single value cmpxchg".
- *
- * This provides the needed trylock semantics like cmpxchg would, but it is
- * lighter and less generic than a true cmpxchg implementation.
+ * On pre-ARMv6 hardware this results in a swp-based implementation,
+ * which is the most efficient. For ARMv6+, we emit a pair of exclusive
+ * accesses instead.
  */
-static inline int
-__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
-{
-	int __ex_flag, __res, __orig;
-
-	__asm__ (
-
-		"1: ldrex	%0, [%3]	\n\t"
-		"subs		%1, %0, #1	\n\t"
-		"strexeq	%2, %1, [%3]	\n\t"
-		"movlt		%0, #0		\n\t"
-		"cmpeq		%2, #0		\n\t"
-		"bgt		1b		"
-
-		: "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag)
-		: "r" (&count->counter)
-		: "cc", "memory" );
-
-	return __orig;
-}
-
-#endif
+#include <asm-generic/mutex-xchg.h>
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/pgtable.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/pgtable.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/pgtable.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/pgtable.h	2013-07-13 14:03:57.000000000 -0400
@@ -61,6 +61,15 @@ extern void __pgd_error(const char *file
 #define FIRST_USER_ADDRESS	PAGE_SIZE
 
 /*
+ * Use TASK_SIZE as the ceiling argument for free_pgtables() and
+ * free_pgd_range() to avoid freeing the modules pmd when LPAE is enabled (pmd
+ * page shared between user and kernel).
+ */
+#ifdef CONFIG_ARM_LPAE
+#define USER_PGTABLES_CEILING	TASK_SIZE
+#endif
+
+/*
  * The pgprot_* and protection_map entries will be fixed up in runtime
  * to include the cachable and bufferable bits based on memory policy,
  * as well as any architecture dependent bits like global/ASID and SMP
@@ -195,6 +204,18 @@ static inline pte_t *pmd_page_vaddr(pmd_
 
 #define pte_clear(mm,addr,ptep)	set_pte_ext(ptep, __pte(0), 0)
 
+#define pte_none(pte)		(!pte_val(pte))
+#define pte_present(pte)	(pte_val(pte) & L_PTE_PRESENT)
+#define pte_write(pte)		(!(pte_val(pte) & L_PTE_RDONLY))
+#define pte_dirty(pte)		(pte_val(pte) & L_PTE_DIRTY)
+#define pte_young(pte)		(pte_val(pte) & L_PTE_YOUNG)
+#define pte_exec(pte)		(!(pte_val(pte) & L_PTE_XN))
+#define pte_special(pte)	(0)
+
+#define pte_present_user(pte) \
+	((pte_val(pte) & (L_PTE_PRESENT | L_PTE_USER)) == \
+	 (L_PTE_PRESENT | L_PTE_USER))
+
 #if __LINUX_ARM_ARCH__ < 6
 static inline void __sync_icache_dcache(pte_t pteval)
 {
@@ -206,25 +227,15 @@ extern void __sync_icache_dcache(pte_t p
 static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
 			      pte_t *ptep, pte_t pteval)
 {
-	if (addr >= TASK_SIZE)
-		set_pte_ext(ptep, pteval, 0);
-	else {
+	unsigned long ext = 0;
+
+	if (addr < TASK_SIZE && pte_present_user(pteval)) {
 		__sync_icache_dcache(pteval);
-		set_pte_ext(ptep, pteval, PTE_EXT_NG);
+		ext |= PTE_EXT_NG;
 	}
-}
-
-#define pte_none(pte)		(!pte_val(pte))
-#define pte_present(pte)	(pte_val(pte) & L_PTE_PRESENT)
-#define pte_write(pte)		(!(pte_val(pte) & L_PTE_RDONLY))
-#define pte_dirty(pte)		(pte_val(pte) & L_PTE_DIRTY)
-#define pte_young(pte)		(pte_val(pte) & L_PTE_YOUNG)
-#define pte_exec(pte)		(!(pte_val(pte) & L_PTE_XN))
-#define pte_special(pte)	(0)
 
-#define pte_present_user(pte) \
-	((pte_val(pte) & (L_PTE_PRESENT | L_PTE_USER)) == \
-	 (L_PTE_PRESENT | L_PTE_USER))
+	set_pte_ext(ptep, pteval, ext);
+}
 
 #define PTE_BIT_FUNC(fn,op) \
 static inline pte_t pte_##fn(pte_t pte) { pte_val(pte) op; return pte; }
@@ -251,13 +262,13 @@ static inline pte_t pte_modify(pte_t pte
  *
  *   3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
  *   1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- *   <--------------- offset --------------------> <- type --> 0 0 0
+ *   <--------------- offset ----------------------> < type -> 0 0 0
  *
- * This gives us up to 63 swap files and 32GB per swap file.  Note that
+ * This gives us up to 31 swap files and 64GB per swap file.  Note that
  * the offset field is always non-zero.
  */
 #define __SWP_TYPE_SHIFT	3
-#define __SWP_TYPE_BITS		6
+#define __SWP_TYPE_BITS		5
 #define __SWP_TYPE_MASK		((1 << __SWP_TYPE_BITS) - 1)
 #define __SWP_OFFSET_SHIFT	(__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -127,6 +127,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/uaccess.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/uaccess.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/uaccess.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/uaccess.h	2013-07-13 14:03:57.000000000 -0400
@@ -101,28 +101,39 @@ extern int __get_user_1(void *);
 extern int __get_user_2(void *);
 extern int __get_user_4(void *);
 
-#define __get_user_x(__r2,__p,__e,__s,__i...)				\
+#define __GUP_CLOBBER_1	"lr", "cc"
+#ifdef CONFIG_CPU_USE_DOMAINS
+#define __GUP_CLOBBER_2	"ip", "lr", "cc"
+#else
+#define __GUP_CLOBBER_2 "lr", "cc"
+#endif
+#define __GUP_CLOBBER_4	"lr", "cc"
+
+#define __get_user_x(__r2,__p,__e,__l,__s)				\
 	   __asm__ __volatile__ (					\
 		__asmeq("%0", "r0") __asmeq("%1", "r2")			\
+		__asmeq("%3", "r1")					\
 		"bl	__get_user_" #__s				\
 		: "=&r" (__e), "=r" (__r2)				\
-		: "0" (__p)						\
-		: __i, "cc")
+		: "0" (__p), "r" (__l)					\
+		: __GUP_CLOBBER_##__s)
 
 #define get_user(x,p)							\
 	({								\
+		unsigned long __limit = current_thread_info()->addr_limit - 1; \
 		register const typeof(*(p)) __user *__p asm("r0") = (p);\
 		register unsigned long __r2 asm("r2");			\
+		register unsigned long __l asm("r1") = __limit;		\
 		register int __e asm("r0");				\
 		switch (sizeof(*(__p))) {				\
 		case 1:							\
-			__get_user_x(__r2, __p, __e, 1, "lr");		\
-	       		break;						\
+			__get_user_x(__r2, __p, __e, __l, 1);		\
+			break;						\
 		case 2:							\
-			__get_user_x(__r2, __p, __e, 2, "r3", "lr");	\
+			__get_user_x(__r2, __p, __e, __l, 2);		\
 			break;						\
 		case 4:							\
-	       		__get_user_x(__r2, __p, __e, 4, "lr");		\
+			__get_user_x(__r2, __p, __e, __l, 4);		\
 			break;						\
 		default: __e = __get_user_bad(); break;			\
 		}							\
@@ -135,31 +146,34 @@ extern int __put_user_2(void *, unsigned
 extern int __put_user_4(void *, unsigned int);
 extern int __put_user_8(void *, unsigned long long);
 
-#define __put_user_x(__r2,__p,__e,__s)					\
+#define __put_user_x(__r2,__p,__e,__l,__s)				\
 	   __asm__ __volatile__ (					\
 		__asmeq("%0", "r0") __asmeq("%2", "r2")			\
+		__asmeq("%3", "r1")					\
 		"bl	__put_user_" #__s				\
 		: "=&r" (__e)						\
-		: "0" (__p), "r" (__r2)					\
+		: "0" (__p), "r" (__r2), "r" (__l)			\
 		: "ip", "lr", "cc")
 
 #define put_user(x,p)							\
 	({								\
+		unsigned long __limit = current_thread_info()->addr_limit - 1; \
 		register const typeof(*(p)) __r2 asm("r2") = (x);	\
 		register const typeof(*(p)) __user *__p asm("r0") = (p);\
+		register unsigned long __l asm("r1") = __limit;		\
 		register int __e asm("r0");				\
 		switch (sizeof(*(__p))) {				\
 		case 1:							\
-			__put_user_x(__r2, __p, __e, 1);		\
+			__put_user_x(__r2, __p, __e, __l, 1);		\
 			break;						\
 		case 2:							\
-			__put_user_x(__r2, __p, __e, 2);		\
+			__put_user_x(__r2, __p, __e, __l, 2);		\
 			break;						\
 		case 4:							\
-			__put_user_x(__r2, __p, __e, 4);		\
+			__put_user_x(__r2, __p, __e, __l, 4);		\
 			break;						\
 		case 8:							\
-			__put_user_x(__r2, __p, __e, 8);		\
+			__put_user_x(__r2, __p, __e, __l, 8);		\
 			break;						\
 		default: __e = __put_user_bad(); break;			\
 		}							\
diff -druNp linux-libre-3.4-gnu1/arch/arm/include/asm/vfpmacros.h linux-libre-3.4.53-gnu1/arch/arm/include/asm/vfpmacros.h
--- linux-libre-3.4-gnu1/arch/arm/include/asm/vfpmacros.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/include/asm/vfpmacros.h	2013-07-13 14:03:57.000000000 -0400
@@ -27,9 +27,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
-	tst	\tmp, #HWCAP_VFPv3D16
-	ldceq	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
-	addne	\base, \base, #32*4		    @ step over unused register space
+	tst	\tmp, #HWCAP_VFPD32
+	ldcnel	p11, cr0, [\base],#32*4		    @ FLDMIAD \base!, {d16-d31}
+	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
@@ -51,9 +51,9 @@
 #if __LINUX_ARM_ARCH__ <= 6
 	ldr	\tmp, =elf_hwcap		    @ may not have MVFR regs
 	ldr	\tmp, [\tmp, #0]
-	tst	\tmp, #HWCAP_VFPv3D16
-	stceq	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
-	addne	\base, \base, #32*4		    @ step over unused register space
+	tst	\tmp, #HWCAP_VFPD32
+	stcnel	p11, cr0, [\base],#32*4		    @ FSTMIAD \base!, {d16-d31}
+	addeq	\base, \base, #32*4		    @ step over unused register space
 #else
 	VFPFMRX	\tmp, MVFR0			    @ Media and VFP Feature Register 0
 	and	\tmp, \tmp, #MVFR0_A_SIMD_MASK	    @ A_SIMD field
diff -druNp linux-libre-3.4-gnu1/arch/arm/Kconfig linux-libre-3.4.53-gnu1/arch/arm/Kconfig
--- linux-libre-3.4-gnu1/arch/arm/Kconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/Kconfig	2013-07-13 14:03:57.000000000 -0400
@@ -556,7 +556,7 @@ config ARCH_IXP4XX
 	select ARCH_HAS_DMA_SET_COHERENT_MASK
 	select CLKSRC_MMIO
 	select CPU_XSCALE
-	select GENERIC_GPIO
+	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select MIGHT_HAVE_PCI
 	select NEED_MACH_IO_H
@@ -579,6 +579,7 @@ config ARCH_KIRKWOOD
 	bool "Marvell Kirkwood"
 	select CPU_FEROCEON
 	select PCI
+	select PCI_QUIRKS
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
 	select NEED_MACH_IO_H
@@ -1405,6 +1406,16 @@ config PL310_ERRATA_769419
 	  on systems with an outer cache, the store buffer is drained
 	  explicitly.
 
+config ARM_ERRATA_775420
+       bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
+       depends on CPU_V7
+       help
+	 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
+	 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
+	 operation aborts with MMU exception, it might cause the processor
+	 to deadlock. This workaround puts DSB before executing ISB if
+	 an abort may occur on cache maintenance.
+
 endmenu
 
 source "arch/arm/common/Kconfig"
@@ -2113,6 +2124,7 @@ source "drivers/cpufreq/Kconfig"
 config CPU_FREQ_IMX
 	tristate "CPUfreq driver for i.MX CPUs"
 	depends on ARCH_MXC && CPU_FREQ
+	select CPU_FREQ_TABLE
 	help
 	  This enables the CPUfreq driver for i.MX CPUs.
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/entry-armv.S linux-libre-3.4.53-gnu1/arch/arm/kernel/entry-armv.S
--- linux-libre-3.4-gnu1/arch/arm/kernel/entry-armv.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/entry-armv.S	2013-07-13 14:03:57.000000000 -0400
@@ -244,6 +244,19 @@ svc_preempt:
 	b	1b
 #endif
 
+__und_fault:
+	@ Correct the PC such that it is pointing at the instruction
+	@ which caused the fault.  If the faulting instruction was ARM
+	@ the PC will be pointing at the next instruction, and have to
+	@ subtract 4.  Otherwise, it is Thumb, and the PC will be
+	@ pointing at the second half of the Thumb instruction.  We
+	@ have to subtract 2.
+	ldr	r2, [r0, #S_PC]
+	sub	r2, r2, r1
+	str	r2, [r0, #S_PC]
+	b	do_undefinstr
+ENDPROC(__und_fault)
+
 	.align	5
 __und_svc:
 #ifdef CONFIG_KPROBES
@@ -261,25 +274,32 @@ __und_svc:
 	@
 	@  r0 - instruction
 	@
-#ifndef	CONFIG_THUMB2_KERNEL
+#ifndef CONFIG_THUMB2_KERNEL
 	ldr	r0, [r4, #-4]
 #else
+	mov	r1, #2
 	ldrh	r0, [r4, #-2]			@ Thumb instruction at LR - 2
 	cmp	r0, #0xe800			@ 32-bit instruction if xx >= 0
-	ldrhhs	r9, [r4]			@ bottom 16 bits
-	orrhs	r0, r9, r0, lsl #16
+	blo	__und_svc_fault
+	ldrh	r9, [r4]			@ bottom 16 bits
+	add	r4, r4, #2
+	str	r4, [sp, #S_PC]
+	orr	r0, r9, r0, lsl #16
 #endif
-	adr	r9, BSYM(1f)
+	adr	r9, BSYM(__und_svc_finish)
 	mov	r2, r4
 	bl	call_fpe
 
+	mov	r1, #4				@ PC correction to apply
+__und_svc_fault:
 	mov	r0, sp				@ struct pt_regs *regs
-	bl	do_undefinstr
+	bl	__und_fault
 
 	@
 	@ IRQs off again before pulling preserved data off the stack
 	@
-1:	disable_irq_notrace
+__und_svc_finish:
+	disable_irq_notrace
 
 	@
 	@ restore SPSR and restart the instruction
@@ -423,25 +443,33 @@ __und_usr:
 	mov	r2, r4
 	mov	r3, r5
 
+	@ r2 = regs->ARM_pc, which is either 2 or 4 bytes ahead of the
+	@      faulting instruction depending on Thumb mode.
+	@ r3 = regs->ARM_cpsr
 	@
-	@ fall through to the emulation code, which returns using r9 if
-	@ it has emulated the instruction, or the more conventional lr
-	@ if we are to treat this as a real undefined instruction
-	@
-	@  r0 - instruction
+	@ The emulation code returns using r9 if it has emulated the
+	@ instruction, or the more conventional lr if we are to treat
+	@ this as a real undefined instruction
 	@
 	adr	r9, BSYM(ret_from_exception)
-	adr	lr, BSYM(__und_usr_unknown)
+
 	tst	r3, #PSR_T_BIT			@ Thumb mode?
-	itet	eq				@ explicit IT needed for the 1f label
-	subeq	r4, r2, #4			@ ARM instr at LR - 4
-	subne	r4, r2, #2			@ Thumb instr at LR - 2
-1:	ldreqt	r0, [r4]
+	bne	__und_usr_thumb
+	sub	r4, r2, #4			@ ARM instr at LR - 4
+1:	ldrt	r0, [r4]
 #ifdef CONFIG_CPU_ENDIAN_BE8
-	reveq	r0, r0				@ little endian instruction
+	rev	r0, r0				@ little endian instruction
 #endif
-	beq	call_fpe
+	@ r0 = 32-bit ARM instruction which caused the exception
+	@ r2 = PC value for the following instruction (:= regs->ARM_pc)
+	@ r4 = PC value for the faulting instruction
+	@ lr = 32-bit undefined instruction function
+	adr	lr, BSYM(__und_usr_fault_32)
+	b	call_fpe
+
+__und_usr_thumb:
 	@ Thumb instruction
+	sub	r4, r2, #2			@ First half of thumb instr at LR - 2
 #if CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7
 /*
  * Thumb-2 instruction handling.  Note that because pre-v6 and >= v6 platforms
@@ -455,7 +483,7 @@ __und_usr:
 	ldr	r5, .LCcpu_architecture
 	ldr	r5, [r5]
 	cmp	r5, #CPU_ARCH_ARMv7
-	blo	__und_usr_unknown
+	blo	__und_usr_fault_16		@ 16bit undefined instruction
 /*
  * The following code won't get run unless the running CPU really is v7, so
  * coding round the lack of ldrht on older arches is pointless.  Temporarily
@@ -463,15 +491,18 @@ __und_usr:
  */
 	.arch	armv6t2
 #endif
-2:
- ARM(	ldrht	r5, [r4], #2	)
- THUMB(	ldrht	r5, [r4]	)
- THUMB(	add	r4, r4, #2	)
+2:	ldrht	r5, [r4]
 	cmp	r5, #0xe800			@ 32bit instruction if xx != 0
-	blo	__und_usr_unknown
-3:	ldrht	r0, [r4]
+	blo	__und_usr_fault_16		@ 16bit undefined instruction
+3:	ldrht	r0, [r2]
 	add	r2, r2, #2			@ r2 is PC + 2, make it PC + 4
+	str	r2, [sp, #S_PC]			@ it's a 2x16bit instr, update
 	orr	r0, r0, r5, lsl #16
+	adr	lr, BSYM(__und_usr_fault_32)
+	@ r0 = the two 16-bit Thumb instructions which caused the exception
+	@ r2 = PC value for the following Thumb instruction (:= regs->ARM_pc)
+	@ r4 = PC value for the first 16-bit Thumb instruction
+	@ lr = 32bit undefined instruction function
 
 #if __LINUX_ARM_ARCH__ < 7
 /* If the target arch was overridden, change it back: */
@@ -482,17 +513,13 @@ __und_usr:
 #endif
 #endif /* __LINUX_ARM_ARCH__ < 7 */
 #else /* !(CONFIG_ARM_THUMB && __LINUX_ARM_ARCH__ >= 6 && CONFIG_CPU_V7) */
-	b	__und_usr_unknown
+	b	__und_usr_fault_16
 #endif
- UNWIND(.fnend		)
+ UNWIND(.fnend)
 ENDPROC(__und_usr)
 
-	@
-	@ fallthrough to call_fpe
-	@
-
 /*
- * The out of line fixup for the ldrt above.
+ * The out of line fixup for the ldrt instructions above.
  */
 	.pushsection .fixup, "ax"
 4:	mov	pc, r9
@@ -523,11 +550,12 @@ ENDPROC(__und_usr)
  * NEON handler code.
  *
  * Emulators may wish to make use of the following registers:
- *  r0  = instruction opcode.
- *  r2  = PC+4
+ *  r0  = instruction opcode (32-bit ARM or two 16-bit Thumb)
+ *  r2  = PC value to resume execution after successful emulation
  *  r9  = normal "successful" return address
- *  r10 = this threads thread_info structure.
+ *  r10 = this threads thread_info structure
  *  lr  = unrecognised instruction return address
+ * IRQs disabled, FIQs enabled.
  */
 	@
 	@ Fall-through from Thumb-2 __und_usr
@@ -662,12 +690,17 @@ ENTRY(no_fp)
 	mov	pc, lr
 ENDPROC(no_fp)
 
-__und_usr_unknown:
-	enable_irq
+__und_usr_fault_32:
+	mov	r1, #4
+	b	1f
+__und_usr_fault_16:
+	mov	r1, #2
+1:	enable_irq
 	mov	r0, sp
 	adr	lr, BSYM(ret_from_exception)
-	b	do_undefinstr
-ENDPROC(__und_usr_unknown)
+	b	__und_fault
+ENDPROC(__und_usr_fault_32)
+ENDPROC(__und_usr_fault_16)
 
 	.align	5
 __pabt_usr:
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/hw_breakpoint.c linux-libre-3.4.53-gnu1/arch/arm/kernel/hw_breakpoint.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/hw_breakpoint.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/hw_breakpoint.c	2013-07-13 14:03:57.000000000 -0400
@@ -159,6 +159,12 @@ static int debug_arch_supported(void)
 		arch >= ARM_DEBUG_ARCH_V7_1;
 }
 
+/* Can we determine the watchpoint access type from the fsr? */
+static int debug_exception_updates_fsr(void)
+{
+	return 0;
+}
+
 /* Determine number of WRP registers available. */
 static int get_num_wrp_resources(void)
 {
@@ -619,18 +625,35 @@ int arch_validate_hwbkpt_settings(struct
 	info->address &= ~alignment_mask;
 	info->ctrl.len <<= offset;
 
-	/*
-	 * Currently we rely on an overflow handler to take
-	 * care of single-stepping the breakpoint when it fires.
-	 * In the case of userspace breakpoints on a core with V7 debug,
-	 * we can use the mismatch feature as a poor-man's hardware
-	 * single-step, but this only works for per-task breakpoints.
-	 */
-	if (!bp->overflow_handler && (arch_check_bp_in_kernelspace(bp) ||
-	    !core_has_mismatch_brps() || !bp->hw.bp_target)) {
-		pr_warning("overflow handler required but none found\n");
-		ret = -EINVAL;
+	if (!bp->overflow_handler) {
+		/*
+		 * Mismatch breakpoints are required for single-stepping
+		 * breakpoints.
+		 */
+		if (!core_has_mismatch_brps())
+			return -EINVAL;
+
+		/* We don't allow mismatch breakpoints in kernel space. */
+		if (arch_check_bp_in_kernelspace(bp))
+			return -EPERM;
+
+		/*
+		 * Per-cpu breakpoints are not supported by our stepping
+		 * mechanism.
+		 */
+		if (!bp->hw.bp_target)
+			return -EINVAL;
+
+		/*
+		 * We only support specific access types if the fsr
+		 * reports them.
+		 */
+		if (!debug_exception_updates_fsr() &&
+		    (info->ctrl.type == ARM_BREAKPOINT_LOAD ||
+		     info->ctrl.type == ARM_BREAKPOINT_STORE))
+			return -EINVAL;
 	}
+
 out:
 	return ret;
 }
@@ -706,10 +729,12 @@ static void watchpoint_handler(unsigned
 				goto unlock;
 
 			/* Check that the access type matches. */
-			access = (fsr & ARM_FSR_ACCESS_MASK) ? HW_BREAKPOINT_W :
-				 HW_BREAKPOINT_R;
-			if (!(access & hw_breakpoint_type(wp)))
-				goto unlock;
+			if (debug_exception_updates_fsr()) {
+				access = (fsr & ARM_FSR_ACCESS_MASK) ?
+					  HW_BREAKPOINT_W : HW_BREAKPOINT_R;
+				if (!(access & hw_breakpoint_type(wp)))
+					goto unlock;
+			}
 
 			/* We have a winner. */
 			info->trigger = addr;
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/perf_event.c linux-libre-3.4.53-gnu1/arch/arm/kernel/perf_event.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/perf_event.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/perf_event.c	2013-07-13 14:03:57.000000000 -0400
@@ -319,7 +319,10 @@ validate_event(struct pmu_hw_events *hw_
 	struct hw_perf_event fake_event = event->hw;
 	struct pmu *leader_pmu = event->group_leader->pmu;
 
-	if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF)
+	if (event->pmu != leader_pmu || event->state < PERF_EVENT_STATE_OFF)
+		return 1;
+
+	if (event->state == PERF_EVENT_STATE_OFF && !event->attr.enable_on_exec)
 		return 1;
 
 	return armpmu->get_event_idx(hw_events, &fake_event) >= 0;
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/perf_event_v7.c linux-libre-3.4.53-gnu1/arch/arm/kernel/perf_event_v7.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/perf_event_v7.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/perf_event_v7.c	2013-07-13 14:03:57.000000000 -0400
@@ -775,7 +775,7 @@ static const unsigned armv7_a7_perf_cach
 /*
  * PMXEVTYPER: Event selection reg
  */
-#define	ARMV7_EVTYPE_MASK	0xc00000ff	/* Mask for writable bits */
+#define	ARMV7_EVTYPE_MASK	0xc80000ff	/* Mask for writable bits */
 #define	ARMV7_EVTYPE_EVENT	0xff		/* Mask for EVENT bits */
 
 /*
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/process.c linux-libre-3.4.53-gnu1/arch/arm/kernel/process.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -267,6 +267,7 @@ void machine_shutdown(void)
 void machine_halt(void)
 {
 	machine_shutdown();
+	local_irq_disable();
 	while (1);
 }
 
@@ -288,6 +289,7 @@ void machine_restart(char *cmd)
 
 	/* Whoops - the platform was unable to reboot. Tell the user! */
 	printk("Reboot failed -- System halted\n");
+	local_irq_disable();
 	while (1);
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/sched_clock.c linux-libre-3.4.53-gnu1/arch/arm/kernel/sched_clock.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/sched_clock.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/sched_clock.c	2013-07-13 14:03:57.000000000 -0400
@@ -84,11 +84,11 @@ static void notrace update_sched_clock(v
 	 * detectable in cyc_to_fixed_sched_clock().
 	 */
 	raw_local_irq_save(flags);
-	cd.epoch_cyc = cyc;
+	cd.epoch_cyc_copy = cyc;
 	smp_wmb();
 	cd.epoch_ns = ns;
 	smp_wmb();
-	cd.epoch_cyc_copy = cyc;
+	cd.epoch_cyc = cyc;
 	raw_local_irq_restore(flags);
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/smp.c linux-libre-3.4.53-gnu1/arch/arm/kernel/smp.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/smp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/smp.c	2013-07-13 14:03:57.000000000 -0400
@@ -249,18 +249,24 @@ static void percpu_timer_setup(void);
 asmlinkage void __cpuinit secondary_start_kernel(void)
 {
 	struct mm_struct *mm = &init_mm;
-	unsigned int cpu = smp_processor_id();
+	unsigned int cpu;
+
+	/*
+	 * The identity mapping is uncached (strongly ordered), so
+	 * switch away from it before attempting any exclusive accesses.
+	 */
+	cpu_switch_mm(mm->pgd, mm);
+	enter_lazy_tlb(mm, current);
+	local_flush_tlb_all();
 
 	/*
 	 * All kernel threads share the same mm context; grab a
 	 * reference and switch to it.
 	 */
+	cpu = smp_processor_id();
 	atomic_inc(&mm->mm_count);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
-	cpu_switch_mm(mm->pgd, mm);
-	enter_lazy_tlb(mm, current);
-	local_flush_tlb_all();
 
 	printk("CPU%u: Booted secondary processor\n", cpu);
 
@@ -590,7 +596,8 @@ void smp_send_stop(void)
 
 	cpumask_copy(&mask, cpu_online_mask);
 	cpumask_clear_cpu(smp_processor_id(), &mask);
-	smp_cross_call(&mask, IPI_CPU_STOP);
+	if (!cpumask_empty(&mask))
+		smp_cross_call(&mask, IPI_CPU_STOP);
 
 	/* Wait up to one second for other CPUs to stop */
 	timeout = USEC_PER_SEC;
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/swp_emulate.c linux-libre-3.4.53-gnu1/arch/arm/kernel/swp_emulate.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/swp_emulate.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/swp_emulate.c	2013-07-13 14:03:57.000000000 -0400
@@ -109,10 +109,12 @@ static void set_segfault(struct pt_regs
 {
 	siginfo_t info;
 
+	down_read(&current->mm->mmap_sem);
 	if (find_vma(current->mm, addr) == NULL)
 		info.si_code = SEGV_MAPERR;
 	else
 		info.si_code = SEGV_ACCERR;
+	up_read(&current->mm->mmap_sem);
 
 	info.si_signo = SIGSEGV;
 	info.si_errno = 0;
diff -druNp linux-libre-3.4-gnu1/arch/arm/kernel/traps.c linux-libre-3.4.53-gnu1/arch/arm/kernel/traps.c
--- linux-libre-3.4-gnu1/arch/arm/kernel/traps.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/kernel/traps.c	2013-07-13 14:03:57.000000000 -0400
@@ -370,18 +370,10 @@ static int call_undef_hook(struct pt_reg
 
 asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 {
-	unsigned int correction = thumb_mode(regs) ? 2 : 4;
 	unsigned int instr;
 	siginfo_t info;
 	void __user *pc;
 
-	/*
-	 * According to the ARM ARM, PC is 2 or 4 bytes ahead,
-	 * depending whether we're in Thumb mode or not.
-	 * Correct this offset.
-	 */
-	regs->ARM_pc -= correction;
-
 	pc = (void __user *)instruction_pointer(regs);
 
 	if (processor_mode(regs) == SVC_MODE) {
@@ -396,20 +388,23 @@ asmlinkage void __exception do_undefinst
 #endif
 			instr = *(u32 *) pc;
 	} else if (thumb_mode(regs)) {
-		get_user(instr, (u16 __user *)pc);
+		if (get_user(instr, (u16 __user *)pc))
+			goto die_sig;
 		if (is_wide_instruction(instr)) {
 			unsigned int instr2;
-			get_user(instr2, (u16 __user *)pc+1);
+			if (get_user(instr2, (u16 __user *)pc+1))
+				goto die_sig;
 			instr <<= 16;
 			instr |= instr2;
 		}
-	} else {
-		get_user(instr, (u32 __user *)pc);
+	} else if (get_user(instr, (u32 __user *)pc)) {
+		goto die_sig;
 	}
 
 	if (call_undef_hook(regs, instr) == 0)
 		return;
 
+die_sig:
 #ifdef CONFIG_DEBUG_USER
 	if (user_debug & UDBG_UNDEFINED) {
 		printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",
@@ -496,7 +491,9 @@ do_cache_op(unsigned long start, unsigne
 		if (end > vma->vm_end)
 			end = vma->vm_end;
 
-		flush_cache_user_range(vma, start, end);
+		up_read(&mm->mmap_sem);
+		flush_cache_user_range(start, end);
+		return;
 	}
 	up_read(&mm->mmap_sem);
 }
diff -druNp linux-libre-3.4-gnu1/arch/arm/lib/getuser.S linux-libre-3.4.53-gnu1/arch/arm/lib/getuser.S
--- linux-libre-3.4-gnu1/arch/arm/lib/getuser.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/lib/getuser.S	2013-07-13 14:03:57.000000000 -0400
@@ -16,8 +16,9 @@
  * __get_user_X
  *
  * Inputs:	r0 contains the address
+ *		r1 contains the address limit, which must be preserved
  * Outputs:	r0 is the error code
- *		r2, r3 contains the zero-extended value
+ *		r2 contains the zero-extended value
  *		lr corrupted
  *
  * No other registers must be altered.  (see <asm/uaccess.h>
@@ -27,33 +28,39 @@
  * Note also that it is intended that __get_user_bad is not global.
  */
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 #include <asm/errno.h>
 #include <asm/domain.h>
 
 ENTRY(__get_user_1)
+	check_uaccess r0, 1, r1, r2, __get_user_bad
 1: TUSER(ldrb)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
 ENDPROC(__get_user_1)
 
 ENTRY(__get_user_2)
-#ifdef CONFIG_THUMB2_KERNEL
-2: TUSER(ldrb)	r2, [r0]
-3: TUSER(ldrb)	r3, [r0, #1]
+	check_uaccess r0, 2, r1, r2, __get_user_bad
+#ifdef CONFIG_CPU_USE_DOMAINS
+rb	.req	ip
+2:	ldrbt	r2, [r0], #1
+3:	ldrbt	rb, [r0], #0
 #else
-2: TUSER(ldrb)	r2, [r0], #1
-3: TUSER(ldrb)	r3, [r0]
+rb	.req	r0
+2:	ldrb	r2, [r0]
+3:	ldrb	rb, [r0, #1]
 #endif
 #ifndef __ARMEB__
-	orr	r2, r2, r3, lsl #8
+	orr	r2, r2, rb, lsl #8
 #else
-	orr	r2, r3, r2, lsl #8
+	orr	r2, rb, r2, lsl #8
 #endif
 	mov	r0, #0
 	mov	pc, lr
 ENDPROC(__get_user_2)
 
 ENTRY(__get_user_4)
+	check_uaccess r0, 4, r1, r2, __get_user_bad
 4: TUSER(ldr)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
diff -druNp linux-libre-3.4-gnu1/arch/arm/lib/putuser.S linux-libre-3.4.53-gnu1/arch/arm/lib/putuser.S
--- linux-libre-3.4-gnu1/arch/arm/lib/putuser.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/lib/putuser.S	2013-07-13 14:03:57.000000000 -0400
@@ -16,6 +16,7 @@
  * __put_user_X
  *
  * Inputs:	r0 contains the address
+ *		r1 contains the address limit, which must be preserved
  *		r2, r3 contains the value
  * Outputs:	r0 is the error code
  *		lr corrupted
@@ -27,16 +28,19 @@
  * Note also that it is intended that __put_user_bad is not global.
  */
 #include <linux/linkage.h>
+#include <asm/assembler.h>
 #include <asm/errno.h>
 #include <asm/domain.h>
 
 ENTRY(__put_user_1)
+	check_uaccess r0, 1, r1, ip, __put_user_bad
 1: TUSER(strb)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
 ENDPROC(__put_user_1)
 
 ENTRY(__put_user_2)
+	check_uaccess r0, 2, r1, ip, __put_user_bad
 	mov	ip, r2, lsr #8
 #ifdef CONFIG_THUMB2_KERNEL
 #ifndef __ARMEB__
@@ -60,12 +64,14 @@ ENTRY(__put_user_2)
 ENDPROC(__put_user_2)
 
 ENTRY(__put_user_4)
+	check_uaccess r0, 4, r1, ip, __put_user_bad
 4: TUSER(str)	r2, [r0]
 	mov	r0, #0
 	mov	pc, lr
 ENDPROC(__put_user_4)
 
 ENTRY(__put_user_8)
+	check_uaccess r0, 8, r1, ip, __put_user_bad
 #ifdef CONFIG_THUMB2_KERNEL
 5: TUSER(str)	r2, [r0]
 6: TUSER(str)	r3, [r0, #4]
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/at91rm9200_devices.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91rm9200_devices.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/at91rm9200_devices.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91rm9200_devices.c	2013-07-13 14:03:57.000000000 -0400
@@ -463,7 +463,7 @@ static struct i2c_gpio_platform_data pda
 
 static struct platform_device at91rm9200_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9260_devices.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9260_devices.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9260_devices.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9260_devices.c	2013-07-13 14:03:57.000000000 -0400
@@ -468,7 +468,7 @@ static struct i2c_gpio_platform_data pda
 
 static struct platform_device at91sam9260_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9261_devices.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9261_devices.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9261_devices.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9261_devices.c	2013-07-13 14:03:57.000000000 -0400
@@ -285,7 +285,7 @@ static struct i2c_gpio_platform_data pda
 
 static struct platform_device at91sam9261_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9263_devices.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9263_devices.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9263_devices.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9263_devices.c	2013-07-13 14:03:57.000000000 -0400
@@ -542,7 +542,7 @@ static struct i2c_gpio_platform_data pda
 
 static struct platform_device at91sam9263_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9rl_devices.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9rl_devices.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/at91sam9rl_devices.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/at91sam9rl_devices.c	2013-07-13 14:03:57.000000000 -0400
@@ -314,7 +314,7 @@ static struct i2c_gpio_platform_data pda
 
 static struct platform_device at91sam9rl_twi_device = {
 	.name			= "i2c-gpio",
-	.id			= -1,
+	.id			= 0,
 	.dev.platform_data	= &pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-at91/setup.c linux-libre-3.4.53-gnu1/arch/arm/mach-at91/setup.c
--- linux-libre-3.4-gnu1/arch/arm/mach-at91/setup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-at91/setup.c	2013-07-13 14:03:57.000000000 -0400
@@ -104,6 +104,8 @@ static void __init soc_detect(u32 dbgu_b
 	switch (socid) {
 	case ARCH_ID_AT91RM9200:
 		at91_soc_initdata.type = AT91_SOC_RM9200;
+		if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_NONE)
+			at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
 		at91_boot_soc = at91rm9200_soc;
 		break;
 
@@ -146,7 +148,7 @@ static void __init soc_detect(u32 dbgu_b
 	}
 
 	/* at91sam9g10 */
-	if ((cidr & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
+	if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {
 		at91_soc_initdata.type = AT91_SOC_SAM9G10;
 		at91_boot_soc = at91sam9261_soc;
 	}
@@ -324,7 +326,7 @@ static void at91_dt_rstc(void)
 
 	of_id = of_match_node(rstc_ids, np);
 	if (!of_id)
-		panic("AT91: rtsc no restart function availlable\n");
+		panic("AT91: rtsc no restart function available\n");
 
 	arm_pm_restart = of_id->data;
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-cns3xxx/core.c linux-libre-3.4.53-gnu1/arch/arm/mach-cns3xxx/core.c
--- linux-libre-3.4-gnu1/arch/arm/mach-cns3xxx/core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-cns3xxx/core.c	2013-07-13 14:03:57.000000000 -0400
@@ -22,19 +22,9 @@
 
 static struct map_desc cns3xxx_io_desc[] __initdata = {
 	{
-		.virtual	= CNS3XXX_TC11MP_TWD_BASE_VIRT,
-		.pfn		= __phys_to_pfn(CNS3XXX_TC11MP_TWD_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT,
-		.pfn		= __phys_to_pfn(CNS3XXX_TC11MP_GIC_CPU_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE,
-	}, {
-		.virtual	= CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT,
-		.pfn		= __phys_to_pfn(CNS3XXX_TC11MP_GIC_DIST_BASE),
-		.length		= SZ_4K,
+		.virtual	= CNS3XXX_TC11MP_SCU_BASE_VIRT,
+		.pfn		= __phys_to_pfn(CNS3XXX_TC11MP_SCU_BASE),
+		.length		= SZ_8K,
 		.type		= MT_DEVICE,
 	}, {
 		.virtual	= CNS3XXX_TIMER1_2_3_BASE_VIRT,
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h linux-libre-3.4.53-gnu1/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h
--- linux-libre-3.4-gnu1/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-cns3xxx/include/mach/cns3xxx.h	2013-07-13 14:03:57.000000000 -0400
@@ -94,10 +94,10 @@
 #define RTC_INTR_STS_OFFSET			0x34
 
 #define CNS3XXX_MISC_BASE			0x76000000	/* Misc Control */
-#define CNS3XXX_MISC_BASE_VIRT			0xFFF07000	/* Misc Control */
+#define CNS3XXX_MISC_BASE_VIRT			0xFB000000	/* Misc Control */
 
 #define CNS3XXX_PM_BASE				0x77000000	/* Power Management Control */
-#define CNS3XXX_PM_BASE_VIRT			0xFFF08000
+#define CNS3XXX_PM_BASE_VIRT			0xFB001000
 
 #define PM_CLK_GATE_OFFSET			0x00
 #define PM_SOFT_RST_OFFSET			0x04
@@ -109,7 +109,7 @@
 #define PM_PLL_HM_PD_OFFSET			0x1C
 
 #define CNS3XXX_UART0_BASE			0x78000000	/* UART 0 */
-#define CNS3XXX_UART0_BASE_VIRT			0xFFF09000
+#define CNS3XXX_UART0_BASE_VIRT			0xFB002000
 
 #define CNS3XXX_UART1_BASE			0x78400000	/* UART 1 */
 #define CNS3XXX_UART1_BASE_VIRT			0xFFF0A000
@@ -130,7 +130,7 @@
 #define CNS3XXX_I2S_BASE_VIRT			0xFFF10000
 
 #define CNS3XXX_TIMER1_2_3_BASE			0x7C800000	/* Timer */
-#define CNS3XXX_TIMER1_2_3_BASE_VIRT		0xFFF10800
+#define CNS3XXX_TIMER1_2_3_BASE_VIRT		0xFB003000
 
 #define TIMER1_COUNTER_OFFSET			0x00
 #define TIMER1_AUTO_RELOAD_OFFSET		0x04
@@ -227,16 +227,16 @@
  * Testchip peripheral and fpga gic regions
  */
 #define CNS3XXX_TC11MP_SCU_BASE			0x90000000	/* IRQ, Test chip */
-#define CNS3XXX_TC11MP_SCU_BASE_VIRT		0xFF000000
+#define CNS3XXX_TC11MP_SCU_BASE_VIRT		0xFB004000
 
 #define CNS3XXX_TC11MP_GIC_CPU_BASE		0x90000100	/* Test chip interrupt controller CPU interface */
-#define CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT	0xFF000100
+#define CNS3XXX_TC11MP_GIC_CPU_BASE_VIRT	(CNS3XXX_TC11MP_SCU_BASE_VIRT + 0x100)
 
 #define CNS3XXX_TC11MP_TWD_BASE			0x90000600
-#define CNS3XXX_TC11MP_TWD_BASE_VIRT		0xFF000600
+#define CNS3XXX_TC11MP_TWD_BASE_VIRT		(CNS3XXX_TC11MP_SCU_BASE_VIRT + 0x600)
 
 #define CNS3XXX_TC11MP_GIC_DIST_BASE		0x90001000	/* Test chip interrupt controller distributor */
-#define CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT	0xFF001000
+#define CNS3XXX_TC11MP_GIC_DIST_BASE_VIRT	(CNS3XXX_TC11MP_SCU_BASE_VIRT + 0x1000)
 
 #define CNS3XXX_TC11MP_L220_BASE		0x92002000	/* L220 registers */
 #define CNS3XXX_TC11MP_L220_BASE_VIRT		0xFF002000
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/bridge-regs.h linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/bridge-regs.h
--- linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/bridge-regs.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/bridge-regs.h	2013-07-13 14:03:57.000000000 -0400
@@ -50,5 +50,6 @@
 #define POWER_MANAGEMENT	(BRIDGE_VIRT_BASE | 0x011c)
 
 #define TIMER_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE         (BRIDGE_PHYS_BASE | 0x0300)
 
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/dove.h linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/dove.h
--- linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/dove.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/dove.h	2013-07-13 14:03:57.000000000 -0400
@@ -78,6 +78,7 @@
 
 /* North-South Bridge */
 #define BRIDGE_VIRT_BASE	(DOVE_SB_REGS_VIRT_BASE | 0x20000)
+#define BRIDGE_PHYS_BASE	(DOVE_SB_REGS_PHYS_BASE | 0x20000)
 
 /* Cryptographic Engine */
 #define DOVE_CRYPT_PHYS_BASE	(DOVE_SB_REGS_PHYS_BASE | 0x30000)
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/pm.h linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/pm.h
--- linux-libre-3.4-gnu1/arch/arm/mach-dove/include/mach/pm.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-dove/include/mach/pm.h	2013-07-13 14:03:57.000000000 -0400
@@ -45,7 +45,7 @@ static inline int pmu_to_irq(int pin)
 
 static inline int irq_to_pmu(int irq)
 {
-	if (IRQ_DOVE_PMU_START < irq && irq < NR_IRQS)
+	if (IRQ_DOVE_PMU_START <= irq && irq < NR_IRQS)
 		return irq - IRQ_DOVE_PMU_START;
 
 	return -EINVAL;
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-dove/irq.c linux-libre-3.4.53-gnu1/arch/arm/mach-dove/irq.c
--- linux-libre-3.4-gnu1/arch/arm/mach-dove/irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-dove/irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -61,8 +61,20 @@ static void pmu_irq_ack(struct irq_data
 	int pin = irq_to_pmu(d->irq);
 	u32 u;
 
+	/*
+	 * The PMU mask register is not RW0C: it is RW.  This means that
+	 * the bits take whatever value is written to them; if you write
+	 * a '1', you will set the interrupt.
+	 *
+	 * Unfortunately this means there is NO race free way to clear
+	 * these interrupts.
+	 *
+	 * So, let's structure the code so that the window is as small as
+	 * possible.
+	 */
 	u = ~(1 << (pin & 31));
-	writel(u, PMU_INTERRUPT_CAUSE);
+	u &= readl_relaxed(PMU_INTERRUPT_CAUSE);
+	writel_relaxed(u, PMU_INTERRUPT_CAUSE);
 }
 
 static struct irq_chip pmu_irq_chip = {
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-imx/crm-regs-imx5.h linux-libre-3.4.53-gnu1/arch/arm/mach-imx/crm-regs-imx5.h
--- linux-libre-3.4-gnu1/arch/arm/mach-imx/crm-regs-imx5.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-imx/crm-regs-imx5.h	2013-07-13 14:03:57.000000000 -0400
@@ -23,7 +23,7 @@
 #define MX53_DPLL1_BASE		MX53_IO_ADDRESS(MX53_PLL1_BASE_ADDR)
 #define MX53_DPLL2_BASE		MX53_IO_ADDRESS(MX53_PLL2_BASE_ADDR)
 #define MX53_DPLL3_BASE		MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR)
-#define MX53_DPLL4_BASE		MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR)
+#define MX53_DPLL4_BASE		MX53_IO_ADDRESS(MX53_PLL4_BASE_ADDR)
 
 /* PLL Register Offsets */
 #define MXC_PLL_DP_CTL			0x00
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-imx/hotplug.c linux-libre-3.4.53-gnu1/arch/arm/mach-imx/hotplug.c
--- linux-libre-3.4-gnu1/arch/arm/mach-imx/hotplug.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-imx/hotplug.c	2013-07-13 14:03:57.000000000 -0400
@@ -12,6 +12,7 @@
 
 #include <linux/errno.h>
 #include <asm/cacheflush.h>
+#include <asm/cp15.h>
 #include <mach/common.h>
 
 int platform_cpu_kill(unsigned int cpu)
@@ -19,6 +20,28 @@ int platform_cpu_kill(unsigned int cpu)
 	return 1;
 }
 
+static inline void cpu_enter_lowpower(void)
+{
+	unsigned int v;
+
+	flush_cache_all();
+	asm volatile(
+		"mcr	p15, 0, %1, c7, c5, 0\n"
+	"	mcr	p15, 0, %1, c7, c10, 4\n"
+	/*
+	 * Turn off coherency
+	 */
+	"	mrc	p15, 0, %0, c1, c0, 1\n"
+	"	bic	%0, %0, %3\n"
+	"	mcr	p15, 0, %0, c1, c0, 1\n"
+	"	mrc	p15, 0, %0, c1, c0, 0\n"
+	"	bic	%0, %0, %2\n"
+	"	mcr	p15, 0, %0, c1, c0, 0\n"
+	  : "=&r" (v)
+	  : "r" (0), "Ir" (CR_C), "Ir" (0x40)
+	  : "cc");
+}
+
 /*
  * platform-specific code to shutdown a CPU
  *
@@ -26,12 +49,12 @@ int platform_cpu_kill(unsigned int cpu)
  */
 void platform_cpu_die(unsigned int cpu)
 {
-	flush_cache_all();
+	cpu_enter_lowpower();
 	imx_enable_cpu(cpu, false);
-	cpu_do_idle();
 
-	/* We should never return from idle */
-	panic("cpu %d unexpectedly exit from shutdown\n", cpu);
+	/* spin here until hardware takes it down */
+	while (1)
+		;
 }
 
 int platform_cpu_disable(unsigned int cpu)
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-imx/mach-mx21ads.c linux-libre-3.4.53-gnu1/arch/arm/mach-imx/mach-mx21ads.c
--- linux-libre-3.4-gnu1/arch/arm/mach-imx/mach-mx21ads.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-imx/mach-mx21ads.c	2013-07-13 14:03:57.000000000 -0400
@@ -32,7 +32,7 @@
  * Memory-mapped I/O on MX21ADS base board
  */
 #define MX21ADS_MMIO_BASE_ADDR   0xf5000000
-#define MX21ADS_MMIO_SIZE        SZ_16M
+#define MX21ADS_MMIO_SIZE        0xc00000
 
 #define MX21ADS_REG_ADDR(offset)    (void __force __iomem *) \
 		(MX21ADS_MMIO_BASE_ADDR + (offset))
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-ixp4xx/common.c linux-libre-3.4.53-gnu1/arch/arm/mach-ixp4xx/common.c
--- linux-libre-3.4-gnu1/arch/arm/mach-ixp4xx/common.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-ixp4xx/common.c	2013-07-13 14:03:57.000000000 -0400
@@ -28,6 +28,7 @@
 #include <linux/clockchips.h>
 #include <linux/io.h>
 #include <linux/export.h>
+#include <linux/gpio.h>
 
 #include <mach/udc.h>
 #include <mach/hardware.h>
@@ -107,7 +108,7 @@ static signed char irq2gpio[32] = {
 	 7,  8,  9, 10, 11, 12, -1, -1,
 };
 
-int gpio_to_irq(int gpio)
+static int ixp4xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
 {
 	int irq;
 
@@ -117,7 +118,6 @@ int gpio_to_irq(int gpio)
 	}
 	return -EINVAL;
 }
-EXPORT_SYMBOL(gpio_to_irq);
 
 int irq_to_gpio(unsigned int irq)
 {
@@ -383,12 +383,56 @@ static struct platform_device *ixp46x_de
 unsigned long ixp4xx_exp_bus_size;
 EXPORT_SYMBOL(ixp4xx_exp_bus_size);
 
+static int ixp4xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+	gpio_line_config(gpio, IXP4XX_GPIO_IN);
+
+	return 0;
+}
+
+static int ixp4xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
+					int level)
+{
+	gpio_line_set(gpio, level);
+	gpio_line_config(gpio, IXP4XX_GPIO_OUT);
+
+	return 0;
+}
+
+static int ixp4xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+	int value;
+
+	gpio_line_get(gpio, &value);
+
+	return value;
+}
+
+static void ixp4xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio,
+				  int value)
+{
+	gpio_line_set(gpio, value);
+}
+
+static struct gpio_chip ixp4xx_gpio_chip = {
+	.label			= "IXP4XX_GPIO_CHIP",
+	.direction_input	= ixp4xx_gpio_direction_input,
+	.direction_output	= ixp4xx_gpio_direction_output,
+	.get			= ixp4xx_gpio_get_value,
+	.set			= ixp4xx_gpio_set_value,
+	.to_irq			= ixp4xx_gpio_to_irq,
+	.base			= 0,
+	.ngpio			= 16,
+};
+
 void __init ixp4xx_sys_init(void)
 {
 	ixp4xx_exp_bus_size = SZ_16M;
 
 	platform_add_devices(ixp4xx_devices, ARRAY_SIZE(ixp4xx_devices));
 
+	gpiochip_add(&ixp4xx_gpio_chip);
+
 	if (cpu_is_ixp46x()) {
 		int region;
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-ixp4xx/include/mach/gpio.h linux-libre-3.4.53-gnu1/arch/arm/mach-ixp4xx/include/mach/gpio.h
--- linux-libre-3.4-gnu1/arch/arm/mach-ixp4xx/include/mach/gpio.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-ixp4xx/include/mach/gpio.h	2013-07-13 14:03:57.000000000 -0400
@@ -1,79 +1,2 @@
-/*
- * arch/arm/mach-ixp4xx/include/mach/gpio.h
- *
- * IXP4XX GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Milan Svoboda <msvoboda@ra.rockwell.com>
- * Based on PXA implementation by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_IXP4XX_GPIO_H
-#define __ASM_ARCH_IXP4XX_GPIO_H
-
-#include <linux/kernel.h>
-#include <mach/hardware.h>
-
-#define __ARM_GPIOLIB_COMPLEX
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
-	return 0;
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-	might_sleep();
-
-	return;
-}
-
-static inline int gpio_direction_input(unsigned gpio)
-{
-	gpio_line_config(gpio, IXP4XX_GPIO_IN);
-	return 0;
-}
-
-static inline int gpio_direction_output(unsigned gpio, int level)
-{
-	gpio_line_set(gpio, level);
-	gpio_line_config(gpio, IXP4XX_GPIO_OUT);
-	return 0;
-}
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	int value;
-
-	gpio_line_get(gpio, &value);
-
-	return value;
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	gpio_line_set(gpio, value);
-}
-
-#include <asm-generic/gpio.h>			/* cansleep wrappers */
-
-extern int gpio_to_irq(int gpio);
-#define gpio_to_irq gpio_to_irq
-extern int irq_to_gpio(unsigned int irq);
-
-#endif
+/* empty */
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/include/mach/bridge-regs.h linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
--- linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/include/mach/bridge-regs.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/include/mach/bridge-regs.h	2013-07-13 14:03:57.000000000 -0400
@@ -38,6 +38,7 @@
 #define IRQ_MASK_HIGH_OFF	0x0014
 
 #define TIMER_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE		(BRIDGE_PHYS_BASE | 0x0300)
 
 #define L2_CONFIG_REG		(BRIDGE_VIRT_BASE | 0x0128)
 #define L2_WRITETHROUGH		0x00000010
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/include/mach/kirkwood.h linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/include/mach/kirkwood.h
--- linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/include/mach/kirkwood.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/include/mach/kirkwood.h	2013-07-13 14:03:57.000000000 -0400
@@ -80,6 +80,7 @@
 #define  UART1_VIRT_BASE	(DEV_BUS_VIRT_BASE | 0x2100)
 
 #define BRIDGE_VIRT_BASE	(KIRKWOOD_REGS_VIRT_BASE | 0x20000)
+#define BRIDGE_PHYS_BASE	(KIRKWOOD_REGS_PHYS_BASE | 0x20000)
 
 #define CRYPTO_PHYS_BASE	(KIRKWOOD_REGS_PHYS_BASE | 0x30000)
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/pcie.c linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/pcie.c
--- linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/pcie.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/pcie.c	2013-07-13 14:03:57.000000000 -0400
@@ -212,14 +212,19 @@ static int __init kirkwood_pcie_setup(in
 	return 1;
 }
 
+/*
+ * The root complex has a hardwired class of PCI_CLASS_MEMORY_OTHER, when it
+ * is operating as a root complex this needs to be switched to
+ * PCI_CLASS_BRIDGE_HOST or Linux will errantly try to process the BAR's on
+ * the device. Decoding setup is handled by the orion code.
+ */
 static void __devinit rc_pci_fixup(struct pci_dev *dev)
 {
-	/*
-	 * Prevent enumeration of root complex.
-	 */
 	if (dev->bus->parent == NULL && dev->devfn == 0) {
 		int i;
 
+		dev->class &= 0xff;
+		dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
 		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 			dev->resource[i].start = 0;
 			dev->resource[i].end   = 0;
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/ts219-setup.c linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/ts219-setup.c
--- linux-libre-3.4-gnu1/arch/arm/mach-kirkwood/ts219-setup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-kirkwood/ts219-setup.c	2013-07-13 14:03:57.000000000 -0400
@@ -124,7 +124,7 @@ static void __init qnap_ts219_init(void)
 static int __init ts219_pci_init(void)
 {
 	if (machine_is_ts219())
-		kirkwood_pcie_init(KW_PCIE0);
+		kirkwood_pcie_init(KW_PCIE1 | KW_PCIE0);
 
 	return 0;
 }
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h linux-libre-3.4.53-gnu1/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h
--- linux-libre-3.4-gnu1/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h	2013-07-13 14:03:57.000000000 -0400
@@ -31,5 +31,6 @@
 #define IRQ_MASK_HIGH_OFF	0x0014
 
 #define TIMER_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE		(BRIDGE_PHYS_BASE | 0x0300)
 
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h linux-libre-3.4.53-gnu1/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h
--- linux-libre-3.4-gnu1/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h	2013-07-13 14:03:57.000000000 -0400
@@ -42,6 +42,7 @@
 #define MV78XX0_CORE0_REGS_PHYS_BASE	0xf1020000
 #define MV78XX0_CORE1_REGS_PHYS_BASE	0xf1024000
 #define MV78XX0_CORE_REGS_VIRT_BASE	0xfe400000
+#define MV78XX0_CORE_REGS_PHYS_BASE	0xfe400000
 #define MV78XX0_CORE_REGS_SIZE		SZ_16K
 
 #define MV78XX0_PCIE_IO_PHYS_BASE(i)	(0xf0800000 + ((i) << 20))
@@ -59,6 +60,7 @@
  * Core-specific peripheral registers.
  */
 #define BRIDGE_VIRT_BASE	(MV78XX0_CORE_REGS_VIRT_BASE)
+#define BRIDGE_PHYS_BASE	(MV78XX0_CORE_REGS_PHYS_BASE)
 
 /*
  * Register Map
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-omap2/board-rx51-peripherals.c linux-libre-3.4.53-gnu1/arch/arm/mach-omap2/board-rx51-peripherals.c
--- linux-libre-3.4-gnu1/arch/arm/mach-omap2/board-rx51-peripherals.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-omap2/board-rx51-peripherals.c	2013-07-13 14:03:57.000000000 -0400
@@ -63,11 +63,11 @@
 #define RX51_TSC2005_RESET_GPIO         104
 #define RX51_TSC2005_IRQ_GPIO           100
 
-/* list all spi devices here */
+/* List all SPI devices here. Note that the list/probe order seems to matter! */
 enum {
 	RX51_SPI_WL1251,
-	RX51_SPI_MIPID,		/* LCD panel */
 	RX51_SPI_TSC2005,	/* Touch Controller */
+	RX51_SPI_MIPID,		/* LCD panel */
 };
 
 static struct wl12xx_platform_data wl1251_pdata;
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-omap2/opp.c linux-libre-3.4.53-gnu1/arch/arm/mach-omap2/opp.c
--- linux-libre-3.4-gnu1/arch/arm/mach-omap2/opp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-omap2/opp.c	2013-07-13 14:03:57.000000000 -0400
@@ -53,7 +53,7 @@ int __init omap_init_opp_table(struct om
 	omap_table_init = 1;
 
 	/* Lets now register with OPP library */
-	for (i = 0; i < opp_def_size; i++) {
+	for (i = 0; i < opp_def_size; i++, opp_def++) {
 		struct omap_hwmod *oh;
 		struct device *dev;
 
@@ -86,7 +86,6 @@ int __init omap_init_opp_table(struct om
 					__func__, opp_def->freq,
 					opp_def->hwmod_name, i, r);
 		}
-		opp_def++;
 	}
 
 	return 0;
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-orion5x/include/mach/bridge-regs.h linux-libre-3.4.53-gnu1/arch/arm/mach-orion5x/include/mach/bridge-regs.h
--- linux-libre-3.4-gnu1/arch/arm/mach-orion5x/include/mach/bridge-regs.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-orion5x/include/mach/bridge-regs.h	2013-07-13 14:03:57.000000000 -0400
@@ -35,5 +35,5 @@
 #define MAIN_IRQ_MASK		(ORION5X_BRIDGE_VIRT_BASE | 0x204)
 
 #define TIMER_VIRT_BASE		(ORION5X_BRIDGE_VIRT_BASE | 0x300)
-
+#define TIMER_PHYS_BASE		(ORION5X_BRIDGE_PHYS_BASE | 0x300)
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-orion5x/include/mach/orion5x.h linux-libre-3.4.53-gnu1/arch/arm/mach-orion5x/include/mach/orion5x.h
--- linux-libre-3.4-gnu1/arch/arm/mach-orion5x/include/mach/orion5x.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-orion5x/include/mach/orion5x.h	2013-07-13 14:03:57.000000000 -0400
@@ -82,6 +82,7 @@
 #define  UART1_VIRT_BASE		(ORION5X_DEV_BUS_VIRT_BASE | 0x2100)
 
 #define ORION5X_BRIDGE_VIRT_BASE	(ORION5X_REGS_VIRT_BASE | 0x20000)
+#define ORION5X_BRIDGE_PHYS_BASE	(ORION5X_REGS_PHYS_BASE | 0x20000)
 
 #define ORION5X_PCI_VIRT_BASE		(ORION5X_REGS_VIRT_BASE | 0x30000)
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h
--- linux-libre-3.4-gnu1/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/include/mach/mfp-pxa27x.h	2013-07-13 14:03:57.000000000 -0400
@@ -462,6 +462,9 @@
 	GPIO76_LCD_PCLK,	\
 	GPIO77_LCD_BIAS
 
+/* these enable a work-around for a hw bug in pxa27x during ac97 warm reset */
+#define GPIO113_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO113, AF0, DEFAULT)
+#define GPIO95_AC97_nRESET_GPIO_HIGH MFP_CFG_OUT(GPIO95, AF0, DEFAULT)
 
 extern int keypad_set_wake(unsigned int on);
 #endif /* __ASM_ARCH_MFP_PXA27X_H */
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-pxa/include/mach/smemc.h linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/include/mach/smemc.h
--- linux-libre-3.4-gnu1/arch/arm/mach-pxa/include/mach/smemc.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/include/mach/smemc.h	2013-07-13 14:03:57.000000000 -0400
@@ -37,6 +37,7 @@
 #define CSADRCFG1	(SMEMC_VIRT + 0x84)  /* Address Configuration Register for CS1 */
 #define CSADRCFG2	(SMEMC_VIRT + 0x88)  /* Address Configuration Register for CS2 */
 #define CSADRCFG3	(SMEMC_VIRT + 0x8C)  /* Address Configuration Register for CS3 */
+#define CSMSADRCFG	(SMEMC_VIRT + 0xA0)  /* Chip Select Configuration Register */
 
 /*
  * More handy macros for PCMCIA
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-pxa/pxa27x.c linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/pxa27x.c
--- linux-libre-3.4-gnu1/arch/arm/mach-pxa/pxa27x.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/pxa27x.c	2013-07-13 14:03:57.000000000 -0400
@@ -47,9 +47,9 @@ void pxa27x_clear_otgph(void)
 EXPORT_SYMBOL(pxa27x_clear_otgph);
 
 static unsigned long ac97_reset_config[] = {
-	GPIO113_GPIO,
+	GPIO113_AC97_nRESET_GPIO_HIGH,
 	GPIO113_AC97_nRESET,
-	GPIO95_GPIO,
+	GPIO95_AC97_nRESET_GPIO_HIGH,
 	GPIO95_AC97_nRESET,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-pxa/raumfeld.c linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/raumfeld.c
--- linux-libre-3.4-gnu1/arch/arm/mach-pxa/raumfeld.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/raumfeld.c	2013-07-13 14:03:57.000000000 -0400
@@ -953,12 +953,12 @@ static struct i2c_board_info raumfeld_co
 
 static struct eeti_ts_platform_data eeti_ts_pdata = {
 	.irq_active_high = 1,
+	.irq_gpio = GPIO_TOUCH_IRQ,
 };
 
 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
 	.type	= "eeti_ts",
 	.addr	= 0x0a,
-	.irq	= PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
 	.platform_data = &eeti_ts_pdata,
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-pxa/smemc.c linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/smemc.c
--- linux-libre-3.4-gnu1/arch/arm/mach-pxa/smemc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-pxa/smemc.c	2013-07-13 14:03:57.000000000 -0400
@@ -40,6 +40,8 @@ static void pxa3xx_smemc_resume(void)
 	__raw_writel(csadrcfg[1], CSADRCFG1);
 	__raw_writel(csadrcfg[2], CSADRCFG2);
 	__raw_writel(csadrcfg[3], CSADRCFG3);
+	/* CSMSADRCFG wakes up in its default state (0), so we need to set it */
+	__raw_writel(0x2, CSMSADRCFG);
 }
 
 static struct syscore_ops smemc_syscore_ops = {
@@ -49,8 +51,19 @@ static struct syscore_ops smemc_syscore_
 
 static int __init smemc_init(void)
 {
-	if (cpu_is_pxa3xx())
+	if (cpu_is_pxa3xx()) {
+		/*
+		 * The only documentation we have on the
+		 * Chip Select Configuration Register (CSMSADRCFG) is that
+		 * it must be programmed to 0x2.
+		 * Moreover, in the bit definitions, the second bit
+		 * (CSMSADRCFG[1]) is called "SETALWAYS".
+		 * Other bits are reserved in this register.
+		 */
+		__raw_writel(0x2, CSMSADRCFG);
+
 		register_syscore_ops(&smemc_syscore_ops);
+	}
 
 	return 0;
 }
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-realview/include/mach/board-eb.h linux-libre-3.4.53-gnu1/arch/arm/mach-realview/include/mach/board-eb.h
--- linux-libre-3.4-gnu1/arch/arm/mach-realview/include/mach/board-eb.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-realview/include/mach/board-eb.h	2013-07-13 14:03:57.000000000 -0400
@@ -47,7 +47,7 @@
 #define REALVIEW_EB_USB_BASE		0x4F000000	/* USB */
 
 #ifdef CONFIG_REALVIEW_EB_ARM11MP_REVB
-#define REALVIEW_EB11MP_PRIV_MEM_BASE	0x1F000000
+#define REALVIEW_EB11MP_PRIV_MEM_BASE	0x10100000
 #define REALVIEW_EB11MP_L220_BASE	0x10102000	/* L220 registers */
 #define REALVIEW_EB11MP_SYS_PLD_CTRL1	0xD8		/* Register offset for MPCore sysctl */
 #else
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/debug-macro.S linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/debug-macro.S
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/debug-macro.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/debug-macro.S	2013-07-13 14:03:57.000000000 -0400
@@ -40,17 +40,17 @@
 		addeq	\rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
 		addne	\rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
 		bic	\rd, \rd, #0xff000
-		ldr	\rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+		ldr	\rd, [\rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0)]
 		and	\rd, \rd, #0x00ff0000
 		teq	\rd, #0x00440000		@ is it 2440?
 1004:
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		moveq	\rd, \rd, lsr #SHIFT_2440TXF
 		tst	\rd, #S3C2410_UFSTAT_TXFULL
 	.endm
 
 	.macro  fifo_full_s3c2410 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		tst	\rd, #S3C2410_UFSTAT_TXFULL
 	.endm
 
@@ -68,18 +68,18 @@
 		addeq	\rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
 		addne	\rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
 		bic	\rd, \rd, #0xff000
-		ldr	\rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+		ldr	\rd, [\rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0)]
 		and	\rd, \rd, #0x00ff0000
 		teq	\rd, #0x00440000		@ is it 2440?
 
 10000:
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		andne	\rd, \rd, #S3C2410_UFSTAT_TXMASK
 		andeq	\rd, \rd, #S3C2440_UFSTAT_TXMASK
 	.endm
 
 	.macro fifo_level_s3c2410 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		and	\rd, \rd, #S3C2410_UFSTAT_TXMASK
 	.endm
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/dma.h linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/dma.h
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/dma.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/dma.h	2013-07-13 14:03:57.000000000 -0400
@@ -24,7 +24,8 @@
 */
 
 enum dma_ch {
-	DMACH_XD0,
+	DMACH_DT_PROP = -1,	/* not yet supported, do not use */
+	DMACH_XD0 = 0,
 	DMACH_XD1,
 	DMACH_SDI,
 	DMACH_SPI0,
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/entry-macro.S linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/entry-macro.S
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/include/mach/entry-macro.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/include/mach/entry-macro.S	2013-07-13 14:03:57.000000000 -0400
@@ -31,10 +31,10 @@
 
 		@@ try the interrupt offset register, since it is there
 
-		ldr	\irqstat, [ \base, #INTPND ]
+		ldr	\irqstat, [\base, #INTPND ]
 		teq	\irqstat, #0
 		beq	1002f
-		ldr	\irqnr, [ \base, #INTOFFSET ]
+		ldr	\irqnr, [\base, #INTOFFSET ]
 		mov	\tmp, #1
 		tst	\irqstat, \tmp, lsl \irqnr
 		bne	1001f
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/pm-h1940.S linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/pm-h1940.S
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/pm-h1940.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/pm-h1940.S	2013-07-13 14:03:57.000000000 -0400
@@ -30,4 +30,4 @@
 
 h1940_pm_return:
 	mov	r0, #S3C2410_PA_GPIO
-	ldr	pc, [ r0, #S3C2410_GSTATUS3 - S3C24XX_VA_GPIO ]
+	ldr	pc, [r0, #S3C2410_GSTATUS3 - S3C24XX_VA_GPIO]
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2410.S linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2410.S
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2410.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2410.S	2013-07-13 14:03:57.000000000 -0400
@@ -45,9 +45,9 @@ ENTRY(s3c2410_cpu_suspend)
 	ldr	r4, =S3C2410_REFRESH
 	ldr	r5, =S3C24XX_MISCCR
 	ldr	r6, =S3C2410_CLKCON
-	ldr	r7, [ r4 ]		@ get REFRESH (and ensure in TLB)
-	ldr	r8, [ r5 ]		@ get MISCCR (and ensure in TLB)
-	ldr	r9, [ r6 ]		@ get CLKCON (and ensure in TLB)
+	ldr	r7, [r4]		@ get REFRESH (and ensure in TLB)
+	ldr	r8, [r5]		@ get MISCCR (and ensure in TLB)
+	ldr	r9, [r6]		@ get CLKCON (and ensure in TLB)
 
 	orr	r7, r7, #S3C2410_REFRESH_SELF	@ SDRAM sleep command
 	orr	r8, r8, #S3C2410_MISCCR_SDSLEEP @ SDRAM power-down signals
@@ -61,8 +61,8 @@ ENTRY(s3c2410_cpu_suspend)
 	@@ align next bit of code to cache line
 	.align	5
 s3c2410_do_sleep:
-	streq	r7, [ r4 ]			@ SDRAM sleep command
-	streq	r8, [ r5 ]			@ SDRAM power-down config
-	streq	r9, [ r6 ]			@ CPU sleep
+	streq	r7, [r4]			@ SDRAM sleep command
+	streq	r8, [r5]			@ SDRAM power-down config
+	streq	r9, [r6]			@ CPU sleep
 1:	beq	1b
 	mov	pc, r14
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2412.S linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2412.S
--- linux-libre-3.4-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2412.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-s3c24xx/sleep-s3c2412.S	2013-07-13 14:03:57.000000000 -0400
@@ -57,12 +57,12 @@ s3c2412_sleep_enter1:
 	 * retry, as simply returning causes the system to lock.
 	*/
 
-	ldrne	r9, [ r1 ]
-	strne	r9, [ r1 ]
-	ldrne	r9, [ r2 ]
-	strne	r9, [ r2 ]
-	ldrne	r9, [ r3 ]
-	strne	r9, [ r3 ]
+	ldrne	r9, [r1]
+	strne	r9, [r1]
+	ldrne	r9, [r2]
+	strne	r9, [r2]
+	ldrne	r9, [r3]
+	strne	r9, [r3]
 	bne	s3c2412_sleep_enter1
 
 	mov	pc, r14
diff -druNp linux-libre-3.4-gnu1/arch/arm/mach-tegra/reset.c linux-libre-3.4.53-gnu1/arch/arm/mach-tegra/reset.c
--- linux-libre-3.4-gnu1/arch/arm/mach-tegra/reset.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mach-tegra/reset.c	2013-07-13 14:03:57.000000000 -0400
@@ -33,7 +33,7 @@
 
 static bool is_enabled;
 
-static void tegra_cpu_reset_handler_enable(void)
+static void __init tegra_cpu_reset_handler_enable(void)
 {
 	void __iomem *iram_base = IO_ADDRESS(TEGRA_IRAM_RESET_BASE);
 	void __iomem *evp_cpu_reset =
diff -druNp linux-libre-3.4-gnu1/arch/arm/Makefile linux-libre-3.4.53-gnu1/arch/arm/Makefile
--- linux-libre-3.4-gnu1/arch/arm/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -283,10 +283,10 @@ zImage Image xipImage bootpImage uImage:
 zinstall uinstall install: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 
-%.dtb:
+%.dtb: scripts
 	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 
-dtbs:
+dtbs: scripts
 	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 
 # We use MRPROPER_FILES and CLEAN_FILES now
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/alignment.c linux-libre-3.4.53-gnu1/arch/arm/mm/alignment.c
--- linux-libre-3.4-gnu1/arch/arm/mm/alignment.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/alignment.c	2013-07-13 14:03:57.000000000 -0400
@@ -750,7 +750,6 @@ do_alignment(unsigned long addr, unsigne
 	unsigned long instr = 0, instrptr;
 	int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
 	unsigned int type;
-	mm_segment_t fs;
 	unsigned int fault;
 	u16 tinstr = 0;
 	int isize = 4;
@@ -761,16 +760,15 @@ do_alignment(unsigned long addr, unsigne
 
 	instrptr = instruction_pointer(regs);
 
-	fs = get_fs();
-	set_fs(KERNEL_DS);
 	if (thumb_mode(regs)) {
-		fault = __get_user(tinstr, (u16 *)(instrptr & ~1));
+		u16 *ptr = (u16 *)(instrptr & ~1);
+		fault = probe_kernel_address(ptr, tinstr);
 		if (!fault) {
 			if (cpu_architecture() >= CPU_ARCH_ARMv7 &&
 			    IS_T32(tinstr)) {
 				/* Thumb-2 32-bit */
 				u16 tinst2 = 0;
-				fault = __get_user(tinst2, (u16 *)(instrptr+2));
+				fault = probe_kernel_address(ptr + 1, tinst2);
 				instr = (tinstr << 16) | tinst2;
 				thumb2_32b = 1;
 			} else {
@@ -779,8 +777,7 @@ do_alignment(unsigned long addr, unsigne
 			}
 		}
 	} else
-		fault = __get_user(instr, (u32 *)instrptr);
-	set_fs(fs);
+		fault = probe_kernel_address(instrptr, instr);
 
 	if (fault) {
 		type = TYPE_FAULT;
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/cache-feroceon-l2.c linux-libre-3.4.53-gnu1/arch/arm/mm/cache-feroceon-l2.c
--- linux-libre-3.4-gnu1/arch/arm/mm/cache-feroceon-l2.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/cache-feroceon-l2.c	2013-07-13 14:03:57.000000000 -0400
@@ -343,6 +343,7 @@ void __init feroceon_l2_init(int __l2_wt
 	outer_cache.inv_range = feroceon_l2_inv_range;
 	outer_cache.clean_range = feroceon_l2_clean_range;
 	outer_cache.flush_range = feroceon_l2_flush_range;
+	outer_cache.inv_all = l2_inv_all;
 
 	enable_l2();
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/cache-v7.S linux-libre-3.4.53-gnu1/arch/arm/mm/cache-v7.S
--- linux-libre-3.4-gnu1/arch/arm/mm/cache-v7.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/cache-v7.S	2013-07-13 14:03:57.000000000 -0400
@@ -211,6 +211,9 @@ ENTRY(v7_coherent_user_range)
  * isn't mapped, just try the next page.
  */
 9001:
+#ifdef CONFIG_ARM_ERRATA_775420
+	dsb
+#endif
 	mov	r12, r12, lsr #12
 	mov	r12, r12, lsl #12
 	add	r12, r12, #4096
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/dma-mapping.c linux-libre-3.4.53-gnu1/arch/arm/mm/dma-mapping.c
--- linux-libre-3.4-gnu1/arch/arm/mm/dma-mapping.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/dma-mapping.c	2013-07-13 14:03:57.000000000 -0400
@@ -503,25 +503,27 @@ static void dma_cache_maint_page(struct
 	size_t size, enum dma_data_direction dir,
 	void (*op)(const void *, size_t, int))
 {
+	unsigned long pfn;
+	size_t left = size;
+
+	pfn = page_to_pfn(page) + offset / PAGE_SIZE;
+	offset %= PAGE_SIZE;
+
 	/*
 	 * A single sg entry may refer to multiple physically contiguous
 	 * pages.  But we still need to process highmem pages individually.
 	 * If highmem is not configured then the bulk of this loop gets
 	 * optimized out.
 	 */
-	size_t left = size;
 	do {
 		size_t len = left;
 		void *vaddr;
 
+		page = pfn_to_page(pfn);
+
 		if (PageHighMem(page)) {
-			if (len + offset > PAGE_SIZE) {
-				if (offset >= PAGE_SIZE) {
-					page += offset / PAGE_SIZE;
-					offset %= PAGE_SIZE;
-				}
+			if (len + offset > PAGE_SIZE)
 				len = PAGE_SIZE - offset;
-			}
 			vaddr = kmap_high_get(page);
 			if (vaddr) {
 				vaddr += offset;
@@ -538,7 +540,7 @@ static void dma_cache_maint_page(struct
 			op(vaddr, len, dir);
 		}
 		offset = 0;
-		page++;
+		pfn++;
 		left -= len;
 	} while (left);
 }
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/flush.c linux-libre-3.4.53-gnu1/arch/arm/mm/flush.c
--- linux-libre-3.4-gnu1/arch/arm/mm/flush.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/flush.c	2013-07-13 14:03:57.000000000 -0400
@@ -231,8 +231,6 @@ void __sync_icache_dcache(pte_t pteval)
 	struct page *page;
 	struct address_space *mapping;
 
-	if (!pte_present_user(pteval))
-		return;
 	if (cache_is_vipt_nonaliasing() && !pte_exec(pteval))
 		/* only flush non-aliasing VIPT caches for exec mappings */
 		return;
@@ -301,6 +299,39 @@ void flush_dcache_page(struct page *page
 EXPORT_SYMBOL(flush_dcache_page);
 
 /*
+ * Ensure cache coherency for the kernel mapping of this page. We can
+ * assume that the page is pinned via kmap.
+ *
+ * If the page only exists in the page cache and there are no user
+ * space mappings, this is a no-op since the page was already marked
+ * dirty at creation.  Otherwise, we need to flush the dirty kernel
+ * cache lines directly.
+ */
+void flush_kernel_dcache_page(struct page *page)
+{
+	if (cache_is_vivt() || cache_is_vipt_aliasing()) {
+		struct address_space *mapping;
+
+		mapping = page_mapping(page);
+
+		if (!mapping || mapping_mapped(mapping)) {
+			void *addr;
+
+			addr = page_address(page);
+			/*
+			 * kmap_atomic() doesn't set the page virtual
+			 * address for highmem pages, and
+			 * kunmap_atomic() takes care of cache
+			 * flushing already.
+			 */
+			if (!IS_ENABLED(CONFIG_HIGHMEM) || addr)
+				__cpuc_flush_dcache_area(addr, PAGE_SIZE);
+		}
+	}
+}
+EXPORT_SYMBOL(flush_kernel_dcache_page);
+
+/*
  * Flush an anonymous page so that users of get_user_pages()
  * can safely access the data.  The expected sequence is:
  *
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/mm.h linux-libre-3.4.53-gnu1/arch/arm/mm/mm.h
--- linux-libre-3.4-gnu1/arch/arm/mm/mm.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/mm.h	2013-07-13 14:03:57.000000000 -0400
@@ -55,6 +55,9 @@ extern void __flush_dcache_page(struct a
 /* permanent static mappings from iotable_init() */
 #define VM_ARM_STATIC_MAPPING	0x40000000
 
+/* empty mapping */
+#define VM_ARM_EMPTY_MAPPING	0x20000000
+
 /* mapping type (attributes) for permanent static mappings */
 #define VM_ARM_MTYPE(mt)		((mt) << 20)
 #define VM_ARM_MTYPE_MASK	(0x1f << 20)
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/mmu.c linux-libre-3.4.53-gnu1/arch/arm/mm/mmu.c
--- linux-libre-3.4-gnu1/arch/arm/mm/mmu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/mmu.c	2013-07-13 14:03:57.000000000 -0400
@@ -497,7 +497,7 @@ static void __init build_mem_type_table(
 #endif
 
 	for (i = 0; i < 16; i++) {
-		unsigned long v = pgprot_val(protection_map[i]);
+		pteval_t v = pgprot_val(protection_map[i]);
 		protection_map[i] = __pgprot(v | user_pgprot);
 	}
 
@@ -783,6 +783,79 @@ void __init iotable_init(struct map_desc
 	}
 }
 
+#ifndef CONFIG_ARM_LPAE
+
+/*
+ * The Linux PMD is made of two consecutive section entries covering 2MB
+ * (see definition in include/asm/pgtable-2level.h).  However a call to
+ * create_mapping() may optimize static mappings by using individual
+ * 1MB section mappings.  This leaves the actual PMD potentially half
+ * initialized if the top or bottom section entry isn't used, leaving it
+ * open to problems if a subsequent ioremap() or vmalloc() tries to use
+ * the virtual space left free by that unused section entry.
+ *
+ * Let's avoid the issue by inserting dummy vm entries covering the unused
+ * PMD halves once the static mappings are in place.
+ */
+
+static void __init pmd_empty_section_gap(unsigned long addr)
+{
+	struct vm_struct *vm;
+
+	vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
+	vm->addr = (void *)addr;
+	vm->size = SECTION_SIZE;
+	vm->flags = VM_IOREMAP | VM_ARM_EMPTY_MAPPING;
+	vm->caller = pmd_empty_section_gap;
+	vm_area_add_early(vm);
+}
+
+static void __init fill_pmd_gaps(void)
+{
+	struct vm_struct *vm;
+	unsigned long addr, next = 0;
+	pmd_t *pmd;
+
+	/* we're still single threaded hence no lock needed here */
+	for (vm = vmlist; vm; vm = vm->next) {
+		if (!(vm->flags & (VM_ARM_STATIC_MAPPING | VM_ARM_EMPTY_MAPPING)))
+			continue;
+		addr = (unsigned long)vm->addr;
+		if (addr < next)
+			continue;
+
+		/*
+		 * Check if this vm starts on an odd section boundary.
+		 * If so and the first section entry for this PMD is free
+		 * then we block the corresponding virtual address.
+		 */
+		if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+			pmd = pmd_off_k(addr);
+			if (pmd_none(*pmd))
+				pmd_empty_section_gap(addr & PMD_MASK);
+		}
+
+		/*
+		 * Then check if this vm ends on an odd section boundary.
+		 * If so and the second section entry for this PMD is empty
+		 * then we block the corresponding virtual address.
+		 */
+		addr += vm->size;
+		if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+			pmd = pmd_off_k(addr) + 1;
+			if (pmd_none(*pmd))
+				pmd_empty_section_gap(addr);
+		}
+
+		/* no need to look at any vm entry until we hit the next PMD */
+		next = (addr + PMD_SIZE - 1) & PMD_MASK;
+	}
+}
+
+#else
+#define fill_pmd_gaps() do { } while (0)
+#endif
+
 static void * __initdata vmalloc_min =
 	(void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
 
@@ -1064,6 +1137,7 @@ static void __init devicemaps_init(struc
 	 */
 	if (mdesc->map_io)
 		mdesc->map_io();
+	fill_pmd_gaps();
 
 	/*
 	 * Finally flush the caches and tlb to ensure that we're in a
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/nommu.c linux-libre-3.4.53-gnu1/arch/arm/mm/nommu.c
--- linux-libre-3.4-gnu1/arch/arm/mm/nommu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/nommu.c	2013-07-13 14:03:57.000000000 -0400
@@ -57,6 +57,12 @@ void flush_dcache_page(struct page *page
 }
 EXPORT_SYMBOL(flush_dcache_page);
 
+void flush_kernel_dcache_page(struct page *page)
+{
+	__cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
+}
+EXPORT_SYMBOL(flush_kernel_dcache_page);
+
 void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
 		       unsigned long uaddr, void *dst, const void *src,
 		       unsigned long len)
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-arm920.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-arm920.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-arm920.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-arm920.S	2013-07-13 14:03:57.000000000 -0400
@@ -383,7 +383,7 @@ ENTRY(cpu_arm920_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl	cpu_arm920_suspend_size
 .equ	cpu_arm920_suspend_size, 4 * 3
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_arm920_do_suspend)
 	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ PID
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-arm926.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-arm926.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-arm926.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-arm926.S	2013-07-13 14:03:57.000000000 -0400
@@ -398,7 +398,7 @@ ENTRY(cpu_arm926_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl	cpu_arm926_suspend_size
 .equ	cpu_arm926_suspend_size, 4 * 3
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_arm926_do_suspend)
 	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ PID
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-sa1100.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-sa1100.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-sa1100.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-sa1100.S	2013-07-13 14:03:57.000000000 -0400
@@ -172,7 +172,7 @@ ENTRY(cpu_sa1100_set_pte_ext)
 
 .globl	cpu_sa1100_suspend_size
 .equ	cpu_sa1100_suspend_size, 4 * 3
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_sa1100_do_suspend)
 	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c3, c0, 0		@ domain ID
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-v6.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-v6.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-v6.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-v6.S	2013-07-13 14:03:57.000000000 -0400
@@ -132,7 +132,7 @@ ENTRY(cpu_v6_set_pte_ext)
 /* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */
 .globl	cpu_v6_suspend_size
 .equ	cpu_v6_suspend_size, 4 * 6
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_v6_do_suspend)
 	stmfd	sp!, {r4 - r9, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ FCSE/PID
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-xsc3.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-xsc3.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-xsc3.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-xsc3.S	2013-07-13 14:03:57.000000000 -0400
@@ -410,7 +410,7 @@ ENTRY(cpu_xsc3_set_pte_ext)
 
 .globl	cpu_xsc3_suspend_size
 .equ	cpu_xsc3_suspend_size, 4 * 6
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_xsc3_do_suspend)
 	stmfd	sp!, {r4 - r9, lr}
 	mrc	p14, 0, r4, c6, c0, 0	@ clock configuration, for turbo mode
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/proc-xscale.S linux-libre-3.4.53-gnu1/arch/arm/mm/proc-xscale.S
--- linux-libre-3.4-gnu1/arch/arm/mm/proc-xscale.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/proc-xscale.S	2013-07-13 14:03:57.000000000 -0400
@@ -524,7 +524,7 @@ ENTRY(cpu_xscale_set_pte_ext)
 
 .globl	cpu_xscale_suspend_size
 .equ	cpu_xscale_suspend_size, 4 * 6
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_xscale_do_suspend)
 	stmfd	sp!, {r4 - r9, lr}
 	mrc	p14, 0, r4, c6, c0, 0	@ clock configuration, for turbo mode
diff -druNp linux-libre-3.4-gnu1/arch/arm/mm/tlb-v7.S linux-libre-3.4.53-gnu1/arch/arm/mm/tlb-v7.S
--- linux-libre-3.4-gnu1/arch/arm/mm/tlb-v7.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/mm/tlb-v7.S	2013-07-13 14:03:57.000000000 -0400
@@ -39,10 +39,18 @@ ENTRY(v7wbi_flush_user_tlb_range)
 	mov	r0, r0, lsr #PAGE_SHIFT		@ align address
 	mov	r1, r1, lsr #PAGE_SHIFT
 	asid	r3, r3				@ mask ASID
+#ifdef CONFIG_ARM_ERRATA_720789
+	ALT_SMP(W(mov)	r3, #0	)
+	ALT_UP(W(nop)		)
+#endif
 	orr	r0, r3, r0, lsl #PAGE_SHIFT	@ Create initial MVA
 	mov	r1, r1, lsl #PAGE_SHIFT
 1:
+#ifdef CONFIG_ARM_ERRATA_720789
+	ALT_SMP(mcr	p15, 0, r0, c8, c3, 3)	@ TLB invalidate U MVA all ASID (shareable)
+#else
 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 1)	@ TLB invalidate U MVA (shareable)
+#endif
 	ALT_UP(mcr	p15, 0, r0, c8, c7, 1)	@ TLB invalidate U MVA
 
 	add	r0, r0, #PAGE_SZ
@@ -67,7 +75,11 @@ ENTRY(v7wbi_flush_kern_tlb_range)
 	mov	r0, r0, lsl #PAGE_SHIFT
 	mov	r1, r1, lsl #PAGE_SHIFT
 1:
+#ifdef CONFIG_ARM_ERRATA_720789
+	ALT_SMP(mcr	p15, 0, r0, c8, c3, 3)	@ TLB invalidate U MVA all ASID (shareable)
+#else
 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 1)	@ TLB invalidate U MVA (shareable)
+#endif
 	ALT_UP(mcr	p15, 0, r0, c8, c7, 1)	@ TLB invalidate U MVA
 	add	r0, r0, #PAGE_SZ
 	cmp	r0, r1
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-omap/counter_32k.c linux-libre-3.4.53-gnu1/arch/arm/plat-omap/counter_32k.c
--- linux-libre-3.4-gnu1/arch/arm/plat-omap/counter_32k.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-omap/counter_32k.c	2013-07-13 14:03:57.000000000 -0400
@@ -50,22 +50,29 @@ static u32 notrace omap_32k_read_sched_c
  * nsecs and adds to a monotonically increasing timespec.
  */
 static struct timespec persistent_ts;
-static cycles_t cycles, last_cycles;
+static cycles_t cycles;
 static unsigned int persistent_mult, persistent_shift;
+static DEFINE_SPINLOCK(read_persistent_clock_lock);
+
 void read_persistent_clock(struct timespec *ts)
 {
 	unsigned long long nsecs;
-	cycles_t delta;
-	struct timespec *tsp = &persistent_ts;
+	cycles_t last_cycles;
+	unsigned long flags;
+
+	spin_lock_irqsave(&read_persistent_clock_lock, flags);
 
 	last_cycles = cycles;
 	cycles = timer_32k_base ? __raw_readl(timer_32k_base) : 0;
-	delta = cycles - last_cycles;
 
-	nsecs = clocksource_cyc2ns(delta, persistent_mult, persistent_shift);
+	nsecs = clocksource_cyc2ns(cycles - last_cycles,
+					persistent_mult, persistent_shift);
 
-	timespec_add_ns(tsp, nsecs);
-	*ts = *tsp;
+	timespec_add_ns(&persistent_ts, nsecs);
+
+	*ts = persistent_ts;
+
+	spin_unlock_irqrestore(&read_persistent_clock_lock, flags);
 }
 
 int __init omap_init_clocksource_32k(void)
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-omap/dmtimer.c linux-libre-3.4.53-gnu1/arch/arm/plat-omap/dmtimer.c
--- linux-libre-3.4-gnu1/arch/arm/plat-omap/dmtimer.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-omap/dmtimer.c	2013-07-13 14:03:57.000000000 -0400
@@ -238,7 +238,7 @@ EXPORT_SYMBOL_GPL(omap_dm_timer_enable);
 
 void omap_dm_timer_disable(struct omap_dm_timer *timer)
 {
-	pm_runtime_put(&timer->pdev->dev);
+	pm_runtime_put_sync(&timer->pdev->dev);
 }
 EXPORT_SYMBOL_GPL(omap_dm_timer_disable);
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-orion/common.c linux-libre-3.4.53-gnu1/arch/arm/plat-orion/common.c
--- linux-libre-3.4-gnu1/arch/arm/plat-orion/common.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-orion/common.c	2013-07-13 14:03:57.000000000 -0400
@@ -340,7 +340,7 @@ static struct resource orion_ge10_shared
 
 static struct platform_device orion_ge10_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 2,
 	.dev		= {
 		.platform_data	= &orion_ge10_shared_data,
 	},
@@ -355,8 +355,8 @@ static struct resource orion_ge10_resour
 
 static struct platform_device orion_ge10 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 2,
+	.num_resources	= 1,
 	.resource	= orion_ge10_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
@@ -393,7 +393,7 @@ static struct resource orion_ge11_shared
 
 static struct platform_device orion_ge11_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 3,
 	.dev		= {
 		.platform_data	= &orion_ge11_shared_data,
 	},
@@ -408,8 +408,8 @@ static struct resource orion_ge11_resour
 
 static struct platform_device orion_ge11 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 3,
+	.num_resources	= 1,
 	.resource	= orion_ge11_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
@@ -570,7 +570,7 @@ void __init orion_spi_1_init(unsigned lo
 static struct orion_wdt_platform_data orion_wdt_data;
 
 static struct resource orion_wdt_resource =
-		DEFINE_RES_MEM(TIMER_VIRT_BASE, 0x28);
+		DEFINE_RES_MEM(TIMER_PHYS_BASE, 0x28);
 
 static struct platform_device orion_wdt_device = {
 	.name		= "orion_wdt",
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-s3c24xx/dma.c linux-libre-3.4.53-gnu1/arch/arm/plat-s3c24xx/dma.c
--- linux-libre-3.4-gnu1/arch/arm/plat-s3c24xx/dma.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-s3c24xx/dma.c	2013-07-13 14:03:57.000000000 -0400
@@ -430,7 +430,7 @@ s3c2410_dma_canload(struct s3c2410_dma_c
  * when necessary.
 */
 
-int s3c2410_dma_enqueue(unsigned int channel, void *id,
+int s3c2410_dma_enqueue(enum dma_ch channel, void *id,
 			dma_addr_t data, int size)
 {
 	struct s3c2410_dma_chan *chan = s3c_dma_lookup_channel(channel);
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-s5p/clock.c linux-libre-3.4.53-gnu1/arch/arm/plat-s5p/clock.c
--- linux-libre-3.4-gnu1/arch/arm/plat-s5p/clock.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-s5p/clock.c	2013-07-13 14:03:57.000000000 -0400
@@ -38,6 +38,7 @@ struct clk clk_ext_xtal_mux = {
 struct clk clk_xusbxti = {
 	.name		= "xusbxti",
 	.id		= -1,
+	.rate		= 24000000,
 };
 
 struct clk s5p_clk_27m = {
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-samsung/adc.c linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/adc.c
--- linux-libre-3.4-gnu1/arch/arm/plat-samsung/adc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/adc.c	2013-07-13 14:03:57.000000000 -0400
@@ -157,11 +157,13 @@ int s3c_adc_start(struct s3c_adc_client
 		return -EINVAL;
 	}
 
-	if (client->is_ts && adc->ts_pend)
-		return -EAGAIN;
-
 	spin_lock_irqsave(&adc->lock, flags);
 
+	if (client->is_ts && adc->ts_pend) {
+		spin_unlock_irqrestore(&adc->lock, flags);
+		return -EAGAIN;
+	}
+
 	client->channel = channel;
 	client->nr_samples = nr_samples;
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/debug-macro.S linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/debug-macro.S
--- linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/debug-macro.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/debug-macro.S	2013-07-13 14:03:57.000000000 -0400
@@ -14,12 +14,12 @@
 /* The S5PV210/S5PC110 implementations are as belows. */
 
 	.macro fifo_level_s5pv210 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		and	\rd, \rd, #S5PV210_UFSTAT_TXMASK
 	.endm
 
 	.macro  fifo_full_s5pv210 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		tst	\rd, #S5PV210_UFSTAT_TXFULL
 	.endm
 
@@ -27,7 +27,7 @@
  * most widely re-used */
 
 	.macro fifo_level_s3c2440 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		and	\rd, \rd, #S3C2440_UFSTAT_TXMASK
 	.endm
 
@@ -36,7 +36,7 @@
 #endif
 
 	.macro  fifo_full_s3c2440 rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UFSTAT]
 		tst	\rd, #S3C2440_UFSTAT_TXFULL
 	.endm
 
@@ -45,11 +45,11 @@
 #endif
 
 	.macro	senduart,rd,rx
-		strb 	\rd, [\rx, # S3C2410_UTXH ]
+		strb 	\rd, [\rx, # S3C2410_UTXH]
 	.endm
 
 	.macro	busyuart, rd, rx
-		ldr	\rd, [ \rx, # S3C2410_UFCON ]
+		ldr	\rd, [\rx, # S3C2410_UFCON]
 		tst	\rd, #S3C2410_UFCON_FIFOMODE	@ fifo enabled?
 		beq	1001f				@
 		@ FIFO enabled...
@@ -60,7 +60,7 @@
 
 1001:
 		@ busy waiting for non fifo
-		ldr	\rd, [ \rx, # S3C2410_UTRSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UTRSTAT]
 		tst	\rd, #S3C2410_UTRSTAT_TXFE
 		beq	1001b
 
@@ -68,7 +68,7 @@
 	.endm
 
 	.macro	waituart,rd,rx
-		ldr	\rd, [ \rx, # S3C2410_UFCON ]
+		ldr	\rd, [\rx, # S3C2410_UFCON]
 		tst	\rd, #S3C2410_UFCON_FIFOMODE	@ fifo enabled?
 		beq	1001f				@
 		@ FIFO enabled...
@@ -79,7 +79,7 @@
 		b	1002f
 1001:
 		@ idle waiting for non fifo
-		ldr	\rd, [ \rx, # S3C2410_UTRSTAT ]
+		ldr	\rd, [\rx, # S3C2410_UTRSTAT]
 		tst	\rd, #S3C2410_UTRSTAT_TXFE
 		beq	1001b
 
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/map-s3c.h linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/map-s3c.h
--- linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/map-s3c.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/map-s3c.h	2013-07-13 14:03:57.000000000 -0400
@@ -22,7 +22,7 @@
 #define S3C24XX_VA_WATCHDOG	S3C_VA_WATCHDOG
 
 #define S3C2412_VA_SSMC		S3C_ADDR_CPU(0x00000000)
-#define S3C2412_VA_EBI		S3C_ADDR_CPU(0x00010000)
+#define S3C2412_VA_EBI		S3C_ADDR_CPU(0x00100000)
 
 #define S3C2410_PA_UART		(0x50000000)
 #define S3C24XX_PA_UART		S3C2410_PA_UART
diff -druNp linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/watchdog-reset.h linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/watchdog-reset.h
--- linux-libre-3.4-gnu1/arch/arm/plat-samsung/include/plat/watchdog-reset.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/plat-samsung/include/plat/watchdog-reset.h	2013-07-13 14:03:57.000000000 -0400
@@ -25,7 +25,7 @@ static inline void arch_wdt_reset(void)
 
 	__raw_writel(0, S3C2410_WTCON);	  /* disable watchdog, to be safe  */
 
-	if (s3c2410_wdtclk)
+	if (!IS_ERR(s3c2410_wdtclk))
 		clk_enable(s3c2410_wdtclk);
 
 	/* put initial values into count and data */
diff -druNp linux-libre-3.4-gnu1/arch/arm/vfp/entry.S linux-libre-3.4.53-gnu1/arch/arm/vfp/entry.S
--- linux-libre-3.4-gnu1/arch/arm/vfp/entry.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/vfp/entry.S	2013-07-13 14:03:57.000000000 -0400
@@ -7,20 +7,22 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
- * Basic entry code, called from the kernel's undefined instruction trap.
- *  r0  = faulted instruction
- *  r5  = faulted PC+4
- *  r9  = successful return
- *  r10 = thread_info structure
- *  lr  = failure return
  */
 #include <asm/thread_info.h>
 #include <asm/vfpmacros.h>
 #include "../kernel/entry-header.S"
 
+@ VFP entry point.
+@
+@  r0  = instruction opcode (32-bit ARM or two 16-bit Thumb)
+@  r2  = PC value to resume execution after successful emulation
+@  r9  = normal "successful" return address
+@  r10 = this threads thread_info structure
+@  lr  = unrecognised instruction return address
+@  IRQs disabled.
+@
 ENTRY(do_vfp)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
 	ldr	r4, [r10, #TI_PREEMPT]	@ get preempt count
 	add	r11, r4, #1		@ increment it
 	str	r11, [r10, #TI_PREEMPT]
@@ -33,7 +35,7 @@ ENTRY(do_vfp)
 ENDPROC(do_vfp)
 
 ENTRY(vfp_null_entry)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
 	get_thread_info	r10
 	ldr	r4, [r10, #TI_PREEMPT]	@ get preempt count
 	sub	r11, r4, #1		@ decrement it
@@ -51,7 +53,7 @@ ENDPROC(vfp_null_entry)
 
 	__INIT
 ENTRY(vfp_testing_entry)
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
 	get_thread_info	r10
 	ldr	r4, [r10, #TI_PREEMPT]	@ get preempt count
 	sub	r11, r4, #1		@ decrement it
diff -druNp linux-libre-3.4-gnu1/arch/arm/vfp/vfphw.S linux-libre-3.4.53-gnu1/arch/arm/vfp/vfphw.S
--- linux-libre-3.4-gnu1/arch/arm/vfp/vfphw.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/vfp/vfphw.S	2013-07-13 14:03:57.000000000 -0400
@@ -61,13 +61,13 @@
 
 @ VFP hardware support entry point.
 @
-@  r0  = faulted instruction
-@  r2  = faulted PC+4
-@  r9  = successful return
+@  r0  = instruction opcode (32-bit ARM or two 16-bit Thumb)
+@  r2  = PC value to resume execution after successful emulation
+@  r9  = normal "successful" return address
 @  r10 = vfp_state union
 @  r11 = CPU number
-@  lr  = failure return
-
+@  lr  = unrecognised instruction return address
+@  IRQs enabled.
 ENTRY(vfp_support_entry)
 	DBGSTR3	"instr %08x pc %08x state %p", r0, r2, r10
 
@@ -161,10 +161,13 @@ vfp_hw_state_valid:
 					@ exception before retrying branch
 					@ out before setting an FPEXC that
 					@ stops us reading stuff
-	VFPFMXR	FPEXC, r1		@ restore FPEXC last
-	sub	r2, r2, #4
-	str	r2, [sp, #S_PC]		@ retry the instruction
-#ifdef CONFIG_PREEMPT
+	VFPFMXR	FPEXC, r1		@ Restore FPEXC last
+	sub	r2, r2, #4		@ Retry current instruction - if Thumb
+	str	r2, [sp, #S_PC]		@ mode it's two 16-bit instructions,
+					@ else it's one 32-bit instruction, so
+					@ always subtract 4 from the following
+					@ instruction address.
+#ifdef CONFIG_PREEMPT_COUNT
 	get_thread_info	r10
 	ldr	r4, [r10, #TI_PREEMPT]	@ get preempt count
 	sub	r11, r4, #1		@ decrement it
@@ -188,7 +191,7 @@ look_for_VFP_exceptions:
 	@ not recognised by VFP
 
 	DBGSTR	"not VFP"
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPT_COUNT
 	get_thread_info	r10
 	ldr	r4, [r10, #TI_PREEMPT]	@ get preempt count
 	sub	r11, r4, #1		@ decrement it
diff -druNp linux-libre-3.4-gnu1/arch/arm/vfp/vfpmodule.c linux-libre-3.4.53-gnu1/arch/arm/vfp/vfpmodule.c
--- linux-libre-3.4-gnu1/arch/arm/vfp/vfpmodule.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/arm/vfp/vfpmodule.c	2013-07-13 14:03:57.000000000 -0400
@@ -413,7 +413,7 @@ void VFP_bounce(u32 trigger, u32 fpexc,
 	 * If there isn't a second FP instruction, exit now. Note that
 	 * the FPEXC.FP2V bit is valid only if FPEXC.EX is 1.
 	 */
-	if (fpexc ^ (FPEXC_EX | FPEXC_FP2V))
+	if ((fpexc & (FPEXC_EX | FPEXC_FP2V)) != (FPEXC_EX | FPEXC_FP2V))
 		goto exit;
 
 	/*
@@ -457,10 +457,16 @@ static int vfp_pm_suspend(void)
 
 		/* disable, just in case */
 		fmxr(FPEXC, fmrx(FPEXC) & ~FPEXC_EN);
+	} else if (vfp_current_hw_state[ti->cpu]) {
+#ifndef CONFIG_SMP
+		fmxr(FPEXC, fpexc | FPEXC_EN);
+		vfp_save_state(vfp_current_hw_state[ti->cpu], fpexc);
+		fmxr(FPEXC, fpexc);
+#endif
 	}
 
 	/* clear any information we had about last context state */
-	memset(vfp_current_hw_state, 0, sizeof(vfp_current_hw_state));
+	vfp_current_hw_state[ti->cpu] = NULL;
 
 	return 0;
 }
@@ -695,11 +701,14 @@ static int __init vfp_init(void)
 			elf_hwcap |= HWCAP_VFPv3;
 
 			/*
-			 * Check for VFPv3 D16. CPUs in this configuration
-			 * only have 16 x 64bit registers.
+			 * Check for VFPv3 D16 and VFPv4 D16.  CPUs in
+			 * this configuration only have 16 x 64bit
+			 * registers.
 			 */
 			if (((fmrx(MVFR0) & MVFR0_A_SIMD_MASK)) == 1)
-				elf_hwcap |= HWCAP_VFPv3D16;
+				elf_hwcap |= HWCAP_VFPv3D16; /* also v4-D16 */
+			else
+				elf_hwcap |= HWCAP_VFPD32;
 		}
 #endif
 		/*
@@ -713,8 +722,10 @@ static int __init vfp_init(void)
 			if ((fmrx(MVFR1) & 0x000fff00) == 0x00011100)
 				elf_hwcap |= HWCAP_NEON;
 #endif
+#ifdef CONFIG_VFPv3
 			if ((fmrx(MVFR1) & 0xf0000000) == 0x10000000)
 				elf_hwcap |= HWCAP_VFPv4;
+#endif
 		}
 	}
 	return 0;
diff -druNp linux-libre-3.4-gnu1/arch/avr32/configs/favr-32_defconfig linux-libre-3.4.53-gnu1/arch/avr32/configs/favr-32_defconfig
--- linux-libre-3.4-gnu1/arch/avr32/configs/favr-32_defconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/avr32/configs/favr-32_defconfig	2013-07-13 14:03:57.000000000 -0400
@@ -122,7 +122,6 @@ CONFIG_USB_G_SERIAL=m
 CONFIG_USB_CDC_COMPOSITE=m
 CONFIG_MMC=y
 CONFIG_MMC_ATMELMCI=y
-CONFIG_MMC_ATMELMCI_DMA=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_ATMEL_PWM=m
diff -druNp linux-libre-3.4-gnu1/arch/avr32/configs/merisc_defconfig linux-libre-3.4.53-gnu1/arch/avr32/configs/merisc_defconfig
--- linux-libre-3.4-gnu1/arch/avr32/configs/merisc_defconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/avr32/configs/merisc_defconfig	2013-07-13 14:03:57.000000000 -0400
@@ -102,7 +102,6 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_MMC=y
 CONFIG_MMC_ATMELMCI=y
-CONFIG_MMC_ATMELMCI_DMA=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_ATMEL_PWM=y
diff -druNp linux-libre-3.4-gnu1/arch/avr32/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/avr32/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/avr32/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/avr32/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -128,6 +128,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/avr32/kernel/module.c linux-libre-3.4.53-gnu1/arch/avr32/kernel/module.c
--- linux-libre-3.4-gnu1/arch/avr32/kernel/module.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/avr32/kernel/module.c	2013-07-13 14:03:57.000000000 -0400
@@ -264,7 +264,7 @@ int apply_relocate_add(Elf32_Shdr *sechd
 			break;
 		case R_AVR32_GOT18SW:
 			if ((relocation & 0xfffe0003) != 0
-			    && (relocation & 0xfffc0003) != 0xffff0000)
+			    && (relocation & 0xfffc0000) != 0xfffc0000)
 				return reloc_overflow(module, "R_AVR32_GOT18SW",
 						     relocation);
 			relocation >>= 2;
diff -druNp linux-libre-3.4-gnu1/arch/cris/include/asm/io.h linux-libre-3.4.53-gnu1/arch/cris/include/asm/io.h
--- linux-libre-3.4-gnu1/arch/cris/include/asm/io.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/cris/include/asm/io.h	2013-07-13 14:03:57.000000000 -0400
@@ -133,12 +133,39 @@ static inline void writel(unsigned int b
 #define insb(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,1,count) : 0)
 #define insw(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,2,count) : 0)
 #define insl(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,4,count) : 0)
-#define outb(data,port) if (cris_iops) cris_iops->write_io(port,(void*)(unsigned)data,1,1)
-#define outw(data,port) if (cris_iops) cris_iops->write_io(port,(void*)(unsigned)data,2,1)
-#define outl(data,port) if (cris_iops) cris_iops->write_io(port,(void*)(unsigned)data,4,1)
-#define outsb(port,addr,count) if(cris_iops) cris_iops->write_io(port,(void*)addr,1,count)
-#define outsw(port,addr,count) if(cris_iops) cris_iops->write_io(port,(void*)addr,2,count)
-#define outsl(port,addr,count) if(cris_iops) cris_iops->write_io(port,(void*)addr,3,count)
+static inline void outb(unsigned char data, unsigned int port)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *) &data, 1, 1);
+}
+static inline void outw(unsigned short data, unsigned int port)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *) &data, 2, 1);
+}
+static inline void outl(unsigned int data, unsigned int port)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *) &data, 4, 1);
+}
+static inline void outsb(unsigned int port, const void *addr,
+			 unsigned long count)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *)addr, 1, count);
+}
+static inline void outsw(unsigned int port, const void *addr,
+			 unsigned long count)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *)addr, 2, count);
+}
+static inline void outsl(unsigned int port, const void *addr,
+			 unsigned long count)
+{
+	if (cris_iops)
+		cris_iops->write_io(port, (void *)addr, 4, count);
+}
 
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
diff -druNp linux-libre-3.4-gnu1/arch/cris/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/cris/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/cris/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/cris/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -122,6 +122,7 @@ struct sigaction {
 	void (*sa_restorer)(void);
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/cris/kernel/process.c linux-libre-3.4.53-gnu1/arch/cris/kernel/process.c
--- linux-libre-3.4-gnu1/arch/cris/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/cris/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/elfcore.h>
 #include <linux/mqueue.h>
 #include <linux/reboot.h>
+#include <linux/rcupdate.h>
 
 //#define DEBUG
 
@@ -102,6 +103,7 @@ void cpu_idle (void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched()) {
 			void (*idle)(void);
 			/*
@@ -114,6 +116,7 @@ void cpu_idle (void)
 				idle = default_idle;
 			idle();
 		}
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/frv/kernel/process.c linux-libre-3.4.53-gnu1/arch/frv/kernel/process.c
--- linux-libre-3.4-gnu1/arch/frv/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/frv/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/reboot.h>
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
+#include <linux/rcupdate.h>
 
 #include <asm/asm-offsets.h>
 #include <asm/uaccess.h>
@@ -84,12 +85,14 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched()) {
 			check_pgt_cache();
 
 			if (!frv_dma_inprogress && idle)
 				idle();
 		}
+		rcu_idle_exit();
 
 		schedule_preempt_disabled();
 	}
diff -druNp linux-libre-3.4-gnu1/arch/h8300/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/h8300/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/h8300/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/h8300/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -121,6 +121,7 @@ struct sigaction {
 	void (*sa_restorer)(void);
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/h8300/kernel/process.c linux-libre-3.4.53-gnu1/arch/h8300/kernel/process.c
--- linux-libre-3.4-gnu1/arch/h8300/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/h8300/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -36,6 +36,7 @@
 #include <linux/reboot.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 
 #include <asm/uaccess.h>
 #include <asm/traps.h>
@@ -78,8 +79,10 @@ void (*idle)(void) = default_idle;
 void cpu_idle(void)
 {
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			idle();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/ia64/include/asm/atomic.h linux-libre-3.4.53-gnu1/arch/ia64/include/asm/atomic.h
--- linux-libre-3.4-gnu1/arch/ia64/include/asm/atomic.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/include/asm/atomic.h	2013-07-13 14:03:57.000000000 -0400
@@ -17,8 +17,8 @@
 #include <asm/intrinsics.h>
 
 
-#define ATOMIC_INIT(i)		((atomic_t) { (i) })
-#define ATOMIC64_INIT(i)	((atomic64_t) { (i) })
+#define ATOMIC_INIT(i)		{ (i) }
+#define ATOMIC64_INIT(i)	{ (i) }
 
 #define atomic_read(v)		(*(volatile int *)&(v)->counter)
 #define atomic64_read(v)	(*(volatile long *)&(v)->counter)
diff -druNp linux-libre-3.4-gnu1/arch/ia64/include/asm/futex.h linux-libre-3.4.53-gnu1/arch/ia64/include/asm/futex.h
--- linux-libre-3.4-gnu1/arch/ia64/include/asm/futex.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/include/asm/futex.h	2013-07-13 14:03:57.000000000 -0400
@@ -106,16 +106,15 @@ futex_atomic_cmpxchg_inatomic(u32 *uval,
 		return -EFAULT;
 
 	{
-		register unsigned long r8 __asm ("r8");
+		register unsigned long r8 __asm ("r8") = 0;
 		unsigned long prev;
 		__asm__ __volatile__(
 			"	mf;;					\n"
-			"	mov %0=r0				\n"
 			"	mov ar.ccv=%4;;				\n"
 			"[1:]	cmpxchg4.acq %1=[%2],%3,ar.ccv		\n"
 			"	.xdata4 \"__ex_table\", 1b-., 2f-.	\n"
 			"[2:]"
-			: "=r" (r8), "=r" (prev)
+			: "+r" (r8), "=&r" (prev)
 			: "r" (uaddr), "r" (newval),
 			  "rO" ((long) (unsigned) oldval)
 			: "memory");
diff -druNp linux-libre-3.4-gnu1/arch/ia64/include/asm/Kbuild linux-libre-3.4.53-gnu1/arch/ia64/include/asm/Kbuild
--- linux-libre-3.4-gnu1/arch/ia64/include/asm/Kbuild	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/include/asm/Kbuild	2013-07-13 14:03:57.000000000 -0400
@@ -1,6 +1,7 @@
 include include/asm-generic/Kbuild.asm
 
 header-y += break.h
+header-y += cmpxchg.h
 header-y += fpu.h
 header-y += gcc_intrin.h
 header-y += ia64regs.h
diff -druNp linux-libre-3.4-gnu1/arch/ia64/include/asm/mca.h linux-libre-3.4.53-gnu1/arch/ia64/include/asm/mca.h
--- linux-libre-3.4-gnu1/arch/ia64/include/asm/mca.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/include/asm/mca.h	2013-07-13 14:03:57.000000000 -0400
@@ -143,6 +143,7 @@ extern unsigned long __per_cpu_mca[NR_CP
 extern int cpe_vector;
 extern int ia64_cpe_irq;
 extern void ia64_mca_init(void);
+extern void ia64_mca_irq_init(void);
 extern void ia64_mca_cpu_init(void *);
 extern void ia64_os_mca_dispatch(void);
 extern void ia64_os_mca_dispatch_end(void);
diff -druNp linux-libre-3.4-gnu1/arch/ia64/kernel/irq.c linux-libre-3.4.53-gnu1/arch/ia64/kernel/irq.c
--- linux-libre-3.4-gnu1/arch/ia64/kernel/irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/kernel/irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -23,6 +23,8 @@
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 
+#include <asm/mca.h>
+
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves.
@@ -83,6 +85,12 @@ bool is_affinity_mask_valid(const struct
 
 #endif /* CONFIG_SMP */
 
+int __init arch_early_irq_init(void)
+{
+	ia64_mca_irq_init();
+	return 0;
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
 unsigned int vectors_in_migration[NR_IRQS];
 
diff -druNp linux-libre-3.4-gnu1/arch/ia64/kernel/irq_ia64.c linux-libre-3.4.53-gnu1/arch/ia64/kernel/irq_ia64.c
--- linux-libre-3.4-gnu1/arch/ia64/kernel/irq_ia64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/kernel/irq_ia64.c	2013-07-13 14:03:57.000000000 -0400
@@ -23,7 +23,6 @@
 #include <linux/ioport.h>
 #include <linux/kernel_stat.h>
 #include <linux/ptrace.h>
-#include <linux/random.h>	/* for rand_initialize_irq() */
 #include <linux/signal.h>
 #include <linux/smp.h>
 #include <linux/threads.h>
diff -druNp linux-libre-3.4-gnu1/arch/ia64/kernel/mca.c linux-libre-3.4.53-gnu1/arch/ia64/kernel/mca.c
--- linux-libre-3.4-gnu1/arch/ia64/kernel/mca.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/kernel/mca.c	2013-07-13 14:03:57.000000000 -0400
@@ -2074,22 +2074,16 @@ ia64_mca_init(void)
 	printk(KERN_INFO "MCA related initialization done\n");
 }
 
+
 /*
- * ia64_mca_late_init
- *
- *	Opportunity to setup things that require initialization later
- *	than ia64_mca_init.  Setup a timer to poll for CPEs if the
- *	platform doesn't support an interrupt driven mechanism.
- *
- *  Inputs  :   None
- *  Outputs :   Status
+ * These pieces cannot be done in ia64_mca_init() because it is called before
+ * early_irq_init() which would wipe out our percpu irq registrations. But we
+ * cannot leave them until ia64_mca_late_init() because by then all the other
+ * processors have been brought online and have set their own CMC vectors to
+ * point at a non-existant action. Called from arch_early_irq_init().
  */
-static int __init
-ia64_mca_late_init(void)
+void __init ia64_mca_irq_init(void)
 {
-	if (!mca_init)
-		return 0;
-
 	/*
 	 *  Configure the CMCI/P vector and handler. Interrupts for CMC are
 	 *  per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c).
@@ -2108,6 +2102,23 @@ ia64_mca_late_init(void)
 	/* Setup the CPEI/P handler */
 	register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction);
 #endif
+}
+
+/*
+ * ia64_mca_late_init
+ *
+ *	Opportunity to setup things that require initialization later
+ *	than ia64_mca_init.  Setup a timer to poll for CPEs if the
+ *	platform doesn't support an interrupt driven mechanism.
+ *
+ *  Inputs  :   None
+ *  Outputs :   Status
+ */
+static int __init
+ia64_mca_late_init(void)
+{
+	if (!mca_init)
+		return 0;
 
 	register_hotcpu_notifier(&mca_cpu_notifier);
 
diff -druNp linux-libre-3.4-gnu1/arch/ia64/kernel/process.c linux-libre-3.4.53-gnu1/arch/ia64/kernel/process.c
--- linux-libre-3.4-gnu1/arch/ia64/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -29,6 +29,7 @@
 #include <linux/kdebug.h>
 #include <linux/utsname.h>
 #include <linux/tracehook.h>
+#include <linux/rcupdate.h>
 
 #include <asm/cpu.h>
 #include <asm/delay.h>
@@ -301,6 +302,7 @@ cpu_idle (void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		if (can_do_pal_halt) {
 			current_thread_info()->status &= ~TS_POLLING;
 			/*
@@ -331,6 +333,7 @@ cpu_idle (void)
 			normal_xtp();
 #endif
 		}
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 		if (cpu_is_offline(cpu))
diff -druNp linux-libre-3.4-gnu1/arch/ia64/kvm/vtlb.c linux-libre-3.4.53-gnu1/arch/ia64/kvm/vtlb.c
--- linux-libre-3.4-gnu1/arch/ia64/kvm/vtlb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/ia64/kvm/vtlb.c	2013-07-13 14:03:57.000000000 -0400
@@ -256,7 +256,7 @@ u64 guest_vhpt_lookup(u64 iha, u64 *pte)
 			"srlz.d;;"
 			"ssm psr.i;;"
 			"srlz.d;;"
-			: "=r"(ret) : "r"(iha), "r"(pte):"memory");
+			: "=&r"(ret) : "r"(iha), "r"(pte) : "memory");
 
 	return ret;
 }
diff -druNp linux-libre-3.4-gnu1/arch/m32r/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/m32r/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/m32r/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m32r/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -123,6 +123,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/m32r/kernel/process.c linux-libre-3.4.53-gnu1/arch/m32r/kernel/process.c
--- linux-libre-3.4-gnu1/arch/m32r/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m32r/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -26,6 +26,7 @@
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/hardirq.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -82,6 +83,7 @@ void cpu_idle (void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched()) {
 			void (*idle)(void) = pm_idle;
 
@@ -90,6 +92,7 @@ void cpu_idle (void)
 
 			idle();
 		}
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/m68k/include/asm/entry.h linux-libre-3.4.53-gnu1/arch/m68k/include/asm/entry.h
--- linux-libre-3.4-gnu1/arch/m68k/include/asm/entry.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m68k/include/asm/entry.h	2013-07-13 14:03:57.000000000 -0400
@@ -33,8 +33,8 @@
 
 /* the following macro is used when enabling interrupts */
 #if defined(MACH_ATARI_ONLY)
-	/* block out HSYNC on the atari */
-#define ALLOWINT	(~0x400)
+	/* block out HSYNC = ipl 2 on the atari */
+#define ALLOWINT	(~0x500)
 #define	MAX_NOINT_IPL	3
 #else
 	/* portable version */
diff -druNp linux-libre-3.4-gnu1/arch/m68k/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/m68k/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/m68k/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m68k/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -119,6 +119,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
@@ -156,7 +157,7 @@ typedef struct sigaltstack {
 static inline void sigaddset(sigset_t *set, int _sig)
 {
 	asm ("bfset %0{%1,#1}"
-		: "+od" (*set)
+		: "+o" (*set)
 		: "id" ((_sig - 1) ^ 31)
 		: "cc");
 }
@@ -164,7 +165,7 @@ static inline void sigaddset(sigset_t *s
 static inline void sigdelset(sigset_t *set, int _sig)
 {
 	asm ("bfclr %0{%1,#1}"
-		: "+od" (*set)
+		: "+o" (*set)
 		: "id" ((_sig - 1) ^ 31)
 		: "cc");
 }
@@ -180,7 +181,7 @@ static inline int __gen_sigismember(sigs
 	int ret;
 	asm ("bfextu %1{%2,#1},%0"
 		: "=d" (ret)
-		: "od" (*set), "id" ((_sig-1) ^ 31)
+		: "o" (*set), "id" ((_sig-1) ^ 31)
 		: "cc");
 	return ret;
 }
diff -druNp linux-libre-3.4-gnu1/arch/m68k/kernel/head.S linux-libre-3.4.53-gnu1/arch/m68k/kernel/head.S
--- linux-libre-3.4-gnu1/arch/m68k/kernel/head.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m68k/kernel/head.S	2013-07-13 14:03:57.000000000 -0400
@@ -2752,11 +2752,9 @@ func_return	get_new_page
 #ifdef CONFIG_MAC
 
 L(scc_initable_mac):
-	.byte	9,12		/* Reset */
 	.byte	4,0x44		/* x16, 1 stopbit, no parity */
 	.byte	3,0xc0		/* receiver: 8 bpc */
 	.byte	5,0xe2		/* transmitter: 8 bpc, assert dtr/rts */
-	.byte	9,0		/* no interrupts */
 	.byte	10,0		/* NRZ */
 	.byte	11,0x50		/* use baud rate generator */
 	.byte	12,1,13,0	/* 38400 baud */
@@ -2899,6 +2897,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	is_not_mac(L(serial_init_not_mac))
 
 #ifdef SERIAL_DEBUG
+
 /* You may define either or both of these. */
 #define MAC_USE_SCC_A /* Modem port */
 #define MAC_USE_SCC_B /* Printer port */
@@ -2908,9 +2907,21 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 #define mac_scc_cha_b_data_offset	0x4
 #define mac_scc_cha_a_data_offset	0x6
 
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
+	movel	%pc@(L(mac_sccbase)),%a0
+	/* Reset SCC device */
+	moveb	#9,%a0@(mac_scc_cha_a_ctrl_offset)
+	moveb	#0xc0,%a0@(mac_scc_cha_a_ctrl_offset)
+	/* Wait for 5 PCLK cycles, which is about 68 CPU cycles */
+	/* 5 / 3.6864 MHz = approx. 1.36 us = 68 / 50 MHz */
+	movel	#35,%d0
+5:
+	subq	#1,%d0
+	jne	5b
+#endif
+
 #ifdef MAC_USE_SCC_A
 	/* Initialize channel A */
-	movel	%pc@(L(mac_sccbase)),%a0
 	lea	%pc@(L(scc_initable_mac)),%a1
 5:	moveb	%a1@+,%d0
 	jmi	6f
@@ -2922,9 +2933,6 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 
 #ifdef MAC_USE_SCC_B
 	/* Initialize channel B */
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a0
-#endif	/* MAC_USE_SCC_A */
 	lea	%pc@(L(scc_initable_mac)),%a1
 7:	moveb	%a1@+,%d0
 	jmi	8f
@@ -2933,6 +2941,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	jra	7b
 8:
 #endif	/* MAC_USE_SCC_B */
+
 #endif	/* SERIAL_DEBUG */
 
 	jra	L(serial_init_done)
@@ -3006,17 +3015,17 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 
 #ifdef SERIAL_DEBUG
 
-#ifdef MAC_USE_SCC_A
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
 	movel	%pc@(L(mac_sccbase)),%a1
+#endif
+
+#ifdef MAC_USE_SCC_A
 3:	btst	#2,%a1@(mac_scc_cha_a_ctrl_offset)
 	jeq	3b
 	moveb	%d0,%a1@(mac_scc_cha_a_data_offset)
 #endif	/* MAC_USE_SCC_A */
 
 #ifdef MAC_USE_SCC_B
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a1
-#endif	/* MAC_USE_SCC_A */
 4:	btst	#2,%a1@(mac_scc_cha_b_ctrl_offset)
 	jeq	4b
 	moveb	%d0,%a1@(mac_scc_cha_b_data_offset)
diff -druNp linux-libre-3.4-gnu1/arch/m68k/kernel/process.c linux-libre-3.4.53-gnu1/arch/m68k/kernel/process.c
--- linux-libre-3.4-gnu1/arch/m68k/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m68k/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/reboot.h>
 #include <linux/init_task.h>
 #include <linux/mqueue.h>
+#include <linux/rcupdate.h>
 
 #include <asm/uaccess.h>
 #include <asm/traps.h>
@@ -75,8 +76,10 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			idle();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/m68k/kernel/sys_m68k.c linux-libre-3.4.53-gnu1/arch/m68k/kernel/sys_m68k.c
--- linux-libre-3.4-gnu1/arch/m68k/kernel/sys_m68k.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/m68k/kernel/sys_m68k.c	2013-07-13 14:03:57.000000000 -0400
@@ -479,9 +479,13 @@ sys_atomic_cmpxchg_32(unsigned long newv
 			goto bad_access;
 		}
 
-		mem_value = *mem;
+		/*
+		 * No need to check for EFAULT; we know that the page is
+		 * present and writable.
+		 */
+		__get_user(mem_value, mem);
 		if (mem_value == oldval)
-			*mem = newval;
+			__put_user(newval, mem);
 
 		pte_unmap_unlock(pte, ptl);
 		up_read(&mm->mmap_sem);
diff -druNp linux-libre-3.4-gnu1/arch/microblaze/Kconfig linux-libre-3.4.53-gnu1/arch/microblaze/Kconfig
--- linux-libre-3.4-gnu1/arch/microblaze/Kconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/microblaze/Kconfig	2013-07-13 14:03:57.000000000 -0400
@@ -57,7 +57,7 @@ config GENERIC_CLOCKEVENTS
 	def_bool y
 
 config GENERIC_GPIO
-	def_bool y
+	bool
 
 config GENERIC_CSUM
 	def_bool y
diff -druNp linux-libre-3.4-gnu1/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h linux-libre-3.4.53-gnu1/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
--- linux-libre-3.4-gnu1/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h	2013-07-13 14:03:57.000000000 -0400
@@ -2,6 +2,7 @@
 #define BCM63XX_GPIO_H
 
 #include <linux/init.h>
+#include <bcm63xx_cpu.h>
 
 int __init bcm63xx_gpio_init(void);
 
diff -druNp linux-libre-3.4-gnu1/arch/mips/include/asm/thread_info.h linux-libre-3.4.53-gnu1/arch/mips/include/asm/thread_info.h
--- linux-libre-3.4-gnu1/arch/mips/include/asm/thread_info.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/include/asm/thread_info.h	2013-07-13 14:03:57.000000000 -0400
@@ -60,6 +60,8 @@ struct thread_info {
 register struct thread_info *__current_thread_info __asm__("$28");
 #define current_thread_info()  __current_thread_info
 
+#endif /* !__ASSEMBLY__ */
+
 /* thread information allocation */
 #if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_32BIT)
 #define THREAD_SIZE_ORDER (1)
@@ -97,8 +99,6 @@ register struct thread_info *__current_t
 
 #define free_thread_info(info) kfree(info)
 
-#endif /* !__ASSEMBLY__ */
-
 #define PREEMPT_ACTIVE		0x10000000
 
 /*
diff -druNp linux-libre-3.4-gnu1/arch/mips/kernel/kgdb.c linux-libre-3.4.53-gnu1/arch/mips/kernel/kgdb.c
--- linux-libre-3.4-gnu1/arch/mips/kernel/kgdb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/kernel/kgdb.c	2013-07-13 14:03:57.000000000 -0400
@@ -283,6 +283,15 @@ static int kgdb_mips_notify(struct notif
 	struct pt_regs *regs = args->regs;
 	int trap = (regs->cp0_cause & 0x7c) >> 2;
 
+#ifdef CONFIG_KPROBES
+	/*
+	 * Return immediately if the kprobes fault notifier has set
+	 * DIE_PAGE_FAULT.
+	 */
+	if (cmd == DIE_PAGE_FAULT)
+		return NOTIFY_DONE;
+#endif /* CONFIG_KPROBES */
+
 	/* Userspace events, ignore. */
 	if (user_mode(regs))
 		return NOTIFY_DONE;
diff -druNp linux-libre-3.4-gnu1/arch/mips/kernel/kspd.c linux-libre-3.4.53-gnu1/arch/mips/kernel/kspd.c
--- linux-libre-3.4-gnu1/arch/mips/kernel/kspd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/kernel/kspd.c	2013-07-13 14:03:57.000000000 -0400
@@ -323,7 +323,7 @@ static void sp_cleanup(void)
 	fdt = files_fdtable(files);
 	for (;;) {
 		unsigned long set;
-		i = j * __NFDBITS;
+		i = j * BITS_PER_LONG;
 		if (i >= fdt->max_fds)
 			break;
 		set = fdt->open_fds[j++];
diff -druNp linux-libre-3.4-gnu1/arch/mips/kernel/Makefile linux-libre-3.4.53-gnu1/arch/mips/kernel/Makefile
--- linux-libre-3.4-gnu1/arch/mips/kernel/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/kernel/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -104,7 +104,7 @@ obj-$(CONFIG_MIPS_MACHINE)	+= mips_machi
 
 obj-$(CONFIG_OF)		+= prom.o
 
-CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
+CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -x c /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
 
 obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT)	+= 8250-platform.o
 
diff -druNp linux-libre-3.4-gnu1/arch/mips/kernel/process.c linux-libre-3.4.53-gnu1/arch/mips/kernel/process.c
--- linux-libre-3.4-gnu1/arch/mips/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -72,9 +72,7 @@ void __noreturn cpu_idle(void)
 			}
 		}
 #ifdef CONFIG_HOTPLUG_CPU
-		if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map) &&
-		    (system_state == SYSTEM_RUNNING ||
-		     system_state == SYSTEM_BOOTING))
+		if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map))
 			play_dead();
 #endif
 		rcu_idle_exit();
diff -druNp linux-libre-3.4-gnu1/arch/mips/kernel/vmlinux.lds.S linux-libre-3.4.53-gnu1/arch/mips/kernel/vmlinux.lds.S
--- linux-libre-3.4-gnu1/arch/mips/kernel/vmlinux.lds.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/kernel/vmlinux.lds.S	2013-07-13 14:03:57.000000000 -0400
@@ -1,5 +1,6 @@
 #include <asm/asm-offsets.h>
 #include <asm/page.h>
+#include <asm/thread_info.h>
 #include <asm-generic/vmlinux.lds.h>
 
 #undef mips
@@ -72,7 +73,7 @@ SECTIONS
 	.data : {	/* Data */
 		. = . + DATAOFFSET;		/* for CONFIG_MAPPED_KERNEL */
 
-		INIT_TASK_DATA(PAGE_SIZE)
+		INIT_TASK_DATA(THREAD_SIZE)
 		NOSAVE_DATA
 		CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
 		READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
diff -druNp linux-libre-3.4-gnu1/arch/mips/Makefile linux-libre-3.4.53-gnu1/arch/mips/Makefile
--- linux-libre-3.4-gnu1/arch/mips/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -225,7 +225,7 @@ KBUILD_CPPFLAGS += -D"DATAOFFSET=$(if $(
 LDFLAGS			+= -m $(ld-emul)
 
 ifdef CONFIG_MIPS
-CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \
+CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
 	egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
 	sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
 ifdef CONFIG_64BIT
diff -druNp linux-libre-3.4-gnu1/arch/mips/mm/gup.c linux-libre-3.4.53-gnu1/arch/mips/mm/gup.c
--- linux-libre-3.4-gnu1/arch/mips/mm/gup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mips/mm/gup.c	2013-07-13 14:03:57.000000000 -0400
@@ -152,6 +152,8 @@ static int gup_huge_pud(pud_t pud, unsig
 	do {
 		VM_BUG_ON(compound_head(page) != head);
 		pages[*nr] = page;
+		if (PageTail(page))
+			get_huge_page_tail(page);
 		(*nr)++;
 		page++;
 		refs++;
diff -druNp linux-libre-3.4-gnu1/arch/mn10300/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/mn10300/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/mn10300/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mn10300/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -131,6 +131,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/mn10300/kernel/process.c linux-libre-3.4.53-gnu1/arch/mn10300/kernel/process.c
--- linux-libre-3.4-gnu1/arch/mn10300/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mn10300/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/err.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>
@@ -107,6 +108,7 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	for (;;) {
+		rcu_idle_enter();
 		while (!need_resched()) {
 			void (*idle)(void);
 
@@ -121,6 +123,7 @@ void cpu_idle(void)
 			}
 			idle();
 		}
+		rcu_idle_exit();
 
 		schedule_preempt_disabled();
 	}
diff -druNp linux-libre-3.4-gnu1/arch/mn10300/Makefile linux-libre-3.4.53-gnu1/arch/mn10300/Makefile
--- linux-libre-3.4-gnu1/arch/mn10300/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/mn10300/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -26,7 +26,7 @@ CHECKFLAGS	+=
 PROCESSOR	:= unset
 UNIT		:= unset
 
-KBUILD_CFLAGS	+= -mam33 -mmem-funcs -DCPU=AM33
+KBUILD_CFLAGS	+= -mam33 -DCPU=AM33 $(call cc-option,-mmem-funcs,)
 KBUILD_AFLAGS	+= -mam33 -DCPU=AM33
 
 ifeq ($(CONFIG_MN10300_CURRENT_IN_E2),y)
diff -druNp linux-libre-3.4-gnu1/arch/parisc/include/asm/atomic.h linux-libre-3.4.53-gnu1/arch/parisc/include/asm/atomic.h
--- linux-libre-3.4-gnu1/arch/parisc/include/asm/atomic.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/include/asm/atomic.h	2013-07-13 14:03:57.000000000 -0400
@@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unles
 
 #define atomic_sub_and_test(i,v)	(atomic_sub_return((i),(v)) == 0)
 
-#define ATOMIC_INIT(i)	((atomic_t) { (i) })
+#define ATOMIC_INIT(i)	{ (i) }
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unles
 
 #ifdef CONFIG_64BIT
 
-#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
+#define ATOMIC64_INIT(i) { (i) }
 
 static __inline__ s64
 __atomic64_add_return(s64 i, atomic64_t *v)
diff -druNp linux-libre-3.4-gnu1/arch/parisc/include/asm/pgtable.h linux-libre-3.4.53-gnu1/arch/parisc/include/asm/pgtable.h
--- linux-libre-3.4-gnu1/arch/parisc/include/asm/pgtable.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/include/asm/pgtable.h	2013-07-13 14:03:57.000000000 -0400
@@ -12,11 +12,10 @@
 
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/mm_types.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 
-struct vm_area_struct;
-
 /*
  * kern_addr_valid(ADDR) tests if ADDR is pointing to valid kernel
  * memory.  For the return value to be meaningful, ADDR must be >=
@@ -40,7 +39,14 @@ struct vm_area_struct;
         do{                                                     \
                 *(pteptr) = (pteval);                           \
         } while(0)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+extern void purge_tlb_entries(struct mm_struct *, unsigned long);
+
+#define set_pte_at(mm, addr, ptep, pteval)                      \
+	do {                                                    \
+		set_pte(ptep, pteval);                          \
+		purge_tlb_entries(mm, addr);                    \
+	} while (0)
 
 #endif /* !__ASSEMBLY__ */
 
@@ -466,6 +472,7 @@ static inline void ptep_set_wrprotect(st
 		old = pte_val(*ptep);
 		new = pte_val(pte_wrprotect(__pte (old)));
 	} while (cmpxchg((unsigned long *) ptep, old, new) != old);
+	purge_tlb_entries(mm, addr);
 #else
 	pte_t old_pte = *ptep;
 	set_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/cache.c linux-libre-3.4.53-gnu1/arch/parisc/kernel/cache.c
--- linux-libre-3.4-gnu1/arch/parisc/kernel/cache.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/cache.c	2013-07-13 14:03:57.000000000 -0400
@@ -420,6 +420,24 @@ void kunmap_parisc(void *addr)
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
 
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+	unsigned long flags;
+
+	/* Note: purge_tlb_entries can be called at startup with
+	   no context.  */
+
+	/* Disable preemption while we play with %sr1.  */
+	preempt_disable();
+	mtsp(mm->context, 1);
+	purge_tlb_start(flags);
+	pdtlb(addr);
+	pitlb(addr);
+	purge_tlb_end(flags);
+	preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
 void __flush_tlb_range(unsigned long sid, unsigned long start,
 		       unsigned long end)
 {
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/entry.S linux-libre-3.4.53-gnu1/arch/parisc/kernel/entry.S
--- linux-libre-3.4-gnu1/arch/parisc/kernel/entry.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/entry.S	2013-07-13 14:03:57.000000000 -0400
@@ -552,7 +552,7 @@
 	 * entry (identifying the physical page) and %r23 up with
 	 * the from tlb entry (or nothing if only a to entry---for
 	 * clear_user_page_asm) */
-	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault
+	.macro		do_alias	spc,tmp,tmp1,va,pte,prot,fault,patype
 	cmpib,COND(<>),n 0,\spc,\fault
 	ldil		L%(TMPALIAS_MAP_START),\tmp
 #if defined(CONFIG_64BIT) && (TMPALIAS_MAP_START >= 0x80000000)
@@ -581,11 +581,15 @@
 	 */
 	cmpiclr,=	0x01,\tmp,%r0
 	ldi		(_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
-#ifdef CONFIG_64BIT
+.ifc \patype,20
 	depd,z		\prot,8,7,\prot
-#else
+.else
+.ifc \patype,11
 	depw,z		\prot,8,7,\prot
-#endif
+.else
+	.error "undefined PA type to do_alias"
+.endif
+.endif
 	/*
 	 * OK, it is in the temp alias region, check whether "from" or "to".
 	 * Check "subtle" note in pacache.S re: r23/r26.
@@ -1189,7 +1193,7 @@ dtlb_miss_20w:
 	nop
 
 dtlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,20
 
 	idtlbt          pte,prot
 
@@ -1213,7 +1217,7 @@ nadtlb_miss_20w:
 	nop
 
 nadtlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,20
 
 	idtlbt          pte,prot
 
@@ -1245,7 +1249,7 @@ dtlb_miss_11:
 	nop
 
 dtlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,11
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1277,7 +1281,7 @@ nadtlb_miss_11:
 	nop
 
 nadtlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,11
 
 	idtlba          pte,(va)
 	idtlbp          prot,(va)
@@ -1304,7 +1308,7 @@ dtlb_miss_20:
 	nop
 
 dtlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,dtlb_fault,20
 	
 	idtlbt          pte,prot
 
@@ -1330,7 +1334,7 @@ nadtlb_miss_20:
 	nop
 
 nadtlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate
+	do_alias	spc,t0,t1,va,pte,prot,nadtlb_emulate,20
 
 	idtlbt          pte,prot
 
@@ -1457,7 +1461,7 @@ naitlb_miss_20w:
 	nop
 
 naitlb_check_alias_20w:
-	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault,20
 
 	iitlbt		pte,prot
 
@@ -1511,7 +1515,7 @@ naitlb_miss_11:
 	nop
 
 naitlb_check_alias_11:
-	do_alias	spc,t0,t1,va,pte,prot,itlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,itlb_fault,11
 
 	iitlba          pte,(%sr0, va)
 	iitlbp          prot,(%sr0, va)
@@ -1557,7 +1561,7 @@ naitlb_miss_20:
 	nop
 
 naitlb_check_alias_20:
-	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault
+	do_alias	spc,t0,t1,va,pte,prot,naitlb_fault,20
 
 	iitlbt          pte,prot
 
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/process.c linux-libre-3.4.53-gnu1/arch/parisc/kernel/process.c
--- linux-libre-3.4-gnu1/arch/parisc/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -48,6 +48,7 @@
 #include <linux/unistd.h>
 #include <linux/kallsyms.h>
 #include <linux/uaccess.h>
+#include <linux/rcupdate.h>
 
 #include <asm/io.h>
 #include <asm/asm-offsets.h>
@@ -69,8 +70,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 		check_pgt_cache();
 	}
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/signal32.c linux-libre-3.4.53-gnu1/arch/parisc/kernel/signal32.c
--- linux-libre-3.4-gnu1/arch/parisc/kernel/signal32.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/signal32.c	2013-07-13 14:03:57.000000000 -0400
@@ -67,7 +67,8 @@ put_sigset32(compat_sigset_t __user *up,
 {
 	compat_sigset_t s;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 	sigset_64to32(&s, set);
 
 	return copy_to_user(up, &s, sizeof s);
@@ -79,7 +80,8 @@ get_sigset32(compat_sigset_t __user *up,
 	compat_sigset_t s;
 	int r;
 
-	if (sz != sizeof *set) panic("put_sigset32()");
+	if (sz != sizeof *set)
+		return -EINVAL;
 
 	if ((r = copy_from_user(&s, up, sz)) == 0) {
 		sigset_32to64(set, &s);
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/sys_parisc.c linux-libre-3.4.53-gnu1/arch/parisc/kernel/sys_parisc.c
--- linux-libre-3.4-gnu1/arch/parisc/kernel/sys_parisc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/sys_parisc.c	2013-07-13 14:03:57.000000000 -0400
@@ -73,6 +73,8 @@ static unsigned long get_shared_area(str
 	struct vm_area_struct *vma;
 	int offset = mapping ? get_offset(mapping) : 0;
 
+	offset = (offset + (pgoff << PAGE_SHIFT)) & 0x3FF000;
+
 	addr = DCACHE_ALIGN(addr - offset) + offset;
 
 	for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
diff -druNp linux-libre-3.4-gnu1/arch/parisc/kernel/vmlinux.lds.S linux-libre-3.4.53-gnu1/arch/parisc/kernel/vmlinux.lds.S
--- linux-libre-3.4-gnu1/arch/parisc/kernel/vmlinux.lds.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/parisc/kernel/vmlinux.lds.S	2013-07-13 14:03:57.000000000 -0400
@@ -50,8 +50,10 @@ SECTIONS
 	. = KERNEL_BINARY_TEXT_START;
 
 	_text = .;		/* Text and read-only data */
-	.text ALIGN(16) : {
+	.head ALIGN(16) : {
 		HEAD_TEXT
+	} = 0
+	.text ALIGN(16) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -65,7 +67,7 @@ SECTIONS
 		*(.fixup)
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
-	} = 0
+	}
 	/* End of text section */
 	_etext = .;
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/boot/dts/p1022ds.dtsi linux-libre-3.4.53-gnu1/arch/powerpc/boot/dts/p1022ds.dtsi
--- linux-libre-3.4-gnu1/arch/powerpc/boot/dts/p1022ds.dtsi	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/boot/dts/p1022ds.dtsi	2013-07-13 14:03:57.000000000 -0400
@@ -33,22 +33,6 @@
  */
 
 &board_lbc {
-	/*
-	 * This node is used to access the pixis via "indirect" mode,
-	 * which is done by writing the pixis register index to chip
-	 * select 0 and the value to/from chip select 1.  Indirect
-	 * mode is the only way to access the pixis when DIU video
-	 * is enabled.  Note that this assumes that the first column
-	 * of the 'ranges' property above is the chip select number.
-	 */
-	board-control@0,0 {
-		compatible = "fsl,p1022ds-indirect-pixis";
-		reg = <0x0 0x0 1	/* CS0 */
-		       0x1 0x0 1>;	/* CS1 */
-		interrupt-parent = <&mpic>;
-		interrupts = <8 0 0 0>;
-	};
-
 	nor@0,0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/exception-64s.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/exception-64s.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/exception-64s.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/exception-64s.h	2013-07-13 14:03:57.000000000 -0400
@@ -320,7 +320,7 @@ label##_common:							\
  */
 #define STD_EXCEPTION_COMMON_ASYNC(trap, label, hdlr)		  \
 	EXCEPTION_COMMON(trap, label, hdlr, ret_from_except_lite, \
-			 FINISH_NAP;RUNLATCH_ON;DISABLE_INTS)
+			 FINISH_NAP;DISABLE_INTS;RUNLATCH_ON)
 
 /*
  * When the idle code in power4_idle puts the CPU into NAP mode,
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/hw_irq.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/hw_irq.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/hw_irq.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/hw_irq.h	2013-07-13 14:03:57.000000000 -0400
@@ -85,8 +85,8 @@ static inline bool arch_irqs_disabled(vo
 }
 
 #ifdef CONFIG_PPC_BOOK3E
-#define __hard_irq_enable()	asm volatile("wrteei 1" : : : "memory");
-#define __hard_irq_disable()	asm volatile("wrteei 0" : : : "memory");
+#define __hard_irq_enable()	asm volatile("wrteei 1" : : : "memory")
+#define __hard_irq_disable()	asm volatile("wrteei 0" : : : "memory")
 #else
 #define __hard_irq_enable()	__mtmsrd(local_paca->kernel_msr | MSR_EE, 1)
 #define __hard_irq_disable()	__mtmsrd(local_paca->kernel_msr, 1)
@@ -99,6 +99,14 @@ static inline void hard_irq_disable(void
 	get_paca()->irq_happened |= PACA_IRQ_HARD_DIS;
 }
 
+/* include/linux/interrupt.h needs hard_irq_disable to be a macro */
+#define hard_irq_disable	hard_irq_disable
+
+static inline bool lazy_irq_pending(void)
+{
+	return !!(get_paca()->irq_happened & ~PACA_IRQ_HARD_DIS);
+}
+
 /*
  * This is called by asynchronous interrupts to conditionally
  * re-enable hard interrupts when soft-disabled after having
@@ -116,6 +124,8 @@ static inline bool arch_irq_disabled_reg
 	return !regs->softe;
 }
 
+extern bool prep_irq_for_idle(void);
+
 #else /* CONFIG_PPC64 */
 
 #define SET_MSR_EE(x)	mtmsr(x)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/pci-bridge.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/pci-bridge.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/pci-bridge.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/pci-bridge.h	2013-07-13 14:03:57.000000000 -0400
@@ -181,6 +181,14 @@ static inline int pci_device_from_OF_nod
 #if defined(CONFIG_EEH)
 static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn)
 {
+	/*
+	 * For those OF nodes whose parent isn't PCI bridge, they
+	 * don't have PCI_DN actually. So we have to skip them for
+	 * any EEH operations.
+	 */
+	if (!dn || !PCI_DN(dn))
+		return NULL;
+
 	return PCI_DN(dn)->edev;
 }
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/ppc-opcode.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/ppc-opcode.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/ppc-opcode.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/ppc-opcode.h	2013-07-13 14:03:57.000000000 -0400
@@ -45,6 +45,10 @@
 #define PPC_INST_MFSPR_DSCR_MASK	0xfc1fffff
 #define PPC_INST_MTSPR_DSCR		0x7c1103a6
 #define PPC_INST_MTSPR_DSCR_MASK	0xfc1fffff
+#define PPC_INST_MFSPR_DSCR_USER	0x7c0302a6
+#define PPC_INST_MFSPR_DSCR_USER_MASK	0xfc1fffff
+#define PPC_INST_MTSPR_DSCR_USER	0x7c0303a6
+#define PPC_INST_MTSPR_DSCR_USER_MASK	0xfc1fffff
 #define PPC_INST_SLBFEE			0x7c0007a7
 
 #define PPC_INST_STRING			0x7c00042a
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/reg.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/reg.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/reg.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/reg.h	2013-07-13 14:03:57.000000000 -0400
@@ -1022,7 +1022,8 @@
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLY__
 #define mfmsr()		({unsigned long rval; \
-			asm volatile("mfmsr %0" : "=r" (rval)); rval;})
+			asm volatile("mfmsr %0" : "=r" (rval) : \
+						: "memory"); rval;})
 #ifdef CONFIG_PPC_BOOK3S_64
 #define __mtmsrd(v, l)	asm volatile("mtmsrd %0," __stringify(l) \
 				     : : "r" (v) : "memory")
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/rtas.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/rtas.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/rtas.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/rtas.h	2013-07-13 14:03:57.000000000 -0400
@@ -262,6 +262,8 @@ extern void rtas_progress(char *s, unsig
 extern void rtas_initialize(void);
 extern int rtas_suspend_cpu(struct rtas_suspend_me_data *data);
 extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data);
+extern int rtas_online_cpus_mask(cpumask_var_t cpus);
+extern int rtas_offline_cpus_mask(cpumask_var_t cpus);
 extern int rtas_ibm_suspend_me(struct rtas_args *);
 
 struct rtc_time;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/powerpc/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -109,6 +109,7 @@ struct sigaction {
 	__sigrestore_t sa_restorer;
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/asm-offsets.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/asm-offsets.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/asm-offsets.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/asm-offsets.c	2013-07-13 14:03:57.000000000 -0400
@@ -76,6 +76,7 @@ int main(void)
 	DEFINE(SIGSEGV, SIGSEGV);
 	DEFINE(NMI_MASK, NMI_MASK);
 	DEFINE(THREAD_DSCR, offsetof(struct thread_struct, dscr));
+	DEFINE(THREAD_DSCR_INHERIT, offsetof(struct thread_struct, dscr_inherit));
 #else
 	DEFINE(THREAD_INFO, offsetof(struct task_struct, stack));
 #endif /* CONFIG_PPC64 */
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/cputable.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/cputable.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/cputable.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/cputable.c	2013-07-13 14:03:57.000000000 -0400
@@ -269,7 +269,7 @@ static struct cpu_spec __initdata cpu_sp
 		.cpu_features		= CPU_FTRS_PPC970,
 		.cpu_user_features	= COMMON_USER_POWER4 |
 			PPC_FEATURE_HAS_ALTIVEC_COMP,
-		.mmu_features		= MMU_FTR_HPTE_TABLE,
+		.mmu_features		= MMU_FTRS_PPC970,
 		.icache_bsize		= 128,
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/dbell.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/dbell.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/dbell.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/dbell.c	2013-07-13 14:03:57.000000000 -0400
@@ -28,6 +28,8 @@ void doorbell_setup_this_cpu(void)
 
 void doorbell_cause_ipi(int cpu, unsigned long data)
 {
+	/* Order previous accesses vs. msgsnd, which is treated as a store */
+	mb();
 	ppc_msgsnd(PPC_DBELL, 0, data);
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/entry_64.S linux-libre-3.4.53-gnu1/arch/powerpc/kernel/entry_64.S
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/entry_64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/entry_64.S	2013-07-13 14:03:57.000000000 -0400
@@ -373,6 +373,12 @@ _GLOBAL(ret_from_fork)
 	li	r3,0
 	b	syscall_exit
 
+	.section	".toc","aw"
+DSCR_DEFAULT:
+	.tc dscr_default[TC],dscr_default
+
+	.section	".text"
+
 /*
  * This routine switches between two different tasks.  The process
  * state of one is saved on its kernel stack.  Then the state
@@ -512,9 +518,6 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEG
 	mr	r1,r8		/* start using new stack pointer */
 	std	r7,PACAKSAVE(r13)
 
-	ld	r6,_CCR(r1)
-	mtcrf	0xFF,r6
-
 #ifdef CONFIG_ALTIVEC
 BEGIN_FTR_SECTION
 	ld	r0,THREAD_VRSAVE(r4)
@@ -523,14 +526,22 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_PPC64
 BEGIN_FTR_SECTION
+	lwz	r6,THREAD_DSCR_INHERIT(r4)
+	ld	r7,DSCR_DEFAULT@toc(2)
 	ld	r0,THREAD_DSCR(r4)
-	cmpd	r0,r25
-	beq	1f
+	cmpwi	r6,0
+	bne	1f
+	ld	r0,0(r7)
+1:	cmpd	r0,r25
+	beq	2f
 	mtspr	SPRN_DSCR,r0
-1:	
+2:
 END_FTR_SECTION_IFSET(CPU_FTR_DSCR)
 #endif
 
+	ld	r6,_CCR(r1)
+	mtcrf	0xFF,r6
+
 	/* r3-r13 are destroyed -- Cort */
 	REST_8GPRS(14, r1)
 	REST_10GPRS(22, r1)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/ftrace.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/ftrace.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/ftrace.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/ftrace.c	2013-07-13 14:03:57.000000000 -0400
@@ -245,9 +245,9 @@ __ftrace_make_nop(struct module *mod,
 
 	/*
 	 * On PPC32 the trampoline looks like:
-	 *  0x3d, 0x60, 0x00, 0x00  lis r11,sym@ha
-	 *  0x39, 0x6b, 0x00, 0x00  addi r11,r11,sym@l
-	 *  0x7d, 0x69, 0x03, 0xa6  mtctr r11
+	 *  0x3d, 0x80, 0x00, 0x00  lis r12,sym@ha
+	 *  0x39, 0x8c, 0x00, 0x00  addi r12,r12,sym@l
+	 *  0x7d, 0x89, 0x03, 0xa6  mtctr r12
 	 *  0x4e, 0x80, 0x04, 0x20  bctr
 	 */
 
@@ -262,9 +262,9 @@ __ftrace_make_nop(struct module *mod,
 	pr_devel(" %08x %08x ", jmp[0], jmp[1]);
 
 	/* verify that this is what we expect it to be */
-	if (((jmp[0] & 0xffff0000) != 0x3d600000) ||
-	    ((jmp[1] & 0xffff0000) != 0x396b0000) ||
-	    (jmp[2] != 0x7d6903a6) ||
+	if (((jmp[0] & 0xffff0000) != 0x3d800000) ||
+	    ((jmp[1] & 0xffff0000) != 0x398c0000) ||
+	    (jmp[2] != 0x7d8903a6) ||
 	    (jmp[3] != 0x4e800420)) {
 		printk(KERN_ERR "Not a trampoline\n");
 		return -EINVAL;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/head_64.S linux-libre-3.4.53-gnu1/arch/powerpc/kernel/head_64.S
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/head_64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/head_64.S	2013-07-13 14:03:57.000000000 -0400
@@ -422,7 +422,7 @@ _STATIC(__after_prom_start)
 	tovirt(r6,r6)			/* on booke, we already run at PAGE_OFFSET */
 #endif
 
-#ifdef CONFIG_CRASH_DUMP
+#ifdef CONFIG_RELOCATABLE
 /*
  * Check if the kernel has to be running as relocatable kernel based on the
  * variable __run_at_load, if it is set the kernel is treated as relocatable
@@ -489,6 +489,7 @@ _GLOBAL(copy_and_flush)
 	sync
 	addi	r5,r5,8
 	addi	r6,r6,8
+	isync
 	blr
 
 .align 8
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/idle.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/idle.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/idle.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/idle.c	2013-07-13 14:03:57.000000000 -0400
@@ -113,6 +113,9 @@ void cpu_idle(void)
 	}
 }
 
+static void do_nothing(void *unused)
+{
+}
 
 /*
  * cpu_idle_wait - Used to ensure that all the CPUs come out of the old
@@ -123,16 +126,9 @@ void cpu_idle(void)
  */
 void cpu_idle_wait(void)
 {
-	int cpu;
 	smp_mb();
-
-	/* kick all the CPUs so that they exit out of old idle routine */
-	get_online_cpus();
-	for_each_online_cpu(cpu) {
-		if (cpu != smp_processor_id())
-			smp_send_reschedule(cpu);
-	}
-	put_online_cpus();
+	/* kick all the CPUs so that they exit out of pm_idle */
+	smp_call_function(do_nothing, NULL, 1);
 }
 EXPORT_SYMBOL_GPL(cpu_idle_wait);
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/irq.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/irq.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -162,7 +162,7 @@ notrace unsigned int __check_irq_replay(
 	 * in case we also had a rollover while hard disabled
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_DEC;
-	if (decrementer_check_overflow())
+	if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
 		return 0x900;
 
 	/* Finally check if an external interrupt happened */
@@ -229,7 +229,7 @@ notrace void arch_local_irq_restore(unsi
 	 */
 	if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
 		__hard_irq_disable();
-#ifdef CONFIG_TRACE_IRQFLAG
+#ifdef CONFIG_TRACE_IRQFLAGS
 	else {
 		/*
 		 * We should already be hard disabled here. We had bugs
@@ -277,7 +277,7 @@ EXPORT_SYMBOL(arch_local_irq_restore);
  * NOTE: This is called with interrupts hard disabled but not marked
  * as such in paca->irq_happened, so we need to resync this.
  */
-void restore_interrupts(void)
+void notrace restore_interrupts(void)
 {
 	if (irqs_disabled()) {
 		local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
@@ -286,6 +286,52 @@ void restore_interrupts(void)
 		__hard_irq_enable();
 }
 
+/*
+ * This is a helper to use when about to go into idle low-power
+ * when the latter has the side effect of re-enabling interrupts
+ * (such as calling H_CEDE under pHyp).
+ *
+ * You call this function with interrupts soft-disabled (this is
+ * already the case when ppc_md.power_save is called). The function
+ * will return whether to enter power save or just return.
+ *
+ * In the former case, it will have notified lockdep of interrupts
+ * being re-enabled and generally sanitized the lazy irq state,
+ * and in the latter case it will leave with interrupts hard
+ * disabled and marked as such, so the local_irq_enable() call
+ * in cpu_idle() will properly re-enable everything.
+ */
+bool prep_irq_for_idle(void)
+{
+	/*
+	 * First we need to hard disable to ensure no interrupt
+	 * occurs before we effectively enter the low power state
+	 */
+	hard_irq_disable();
+
+	/*
+	 * If anything happened while we were soft-disabled,
+	 * we return now and do not enter the low power state.
+	 */
+	if (lazy_irq_pending())
+		return false;
+
+	/* Tell lockdep we are about to re-enable */
+	trace_hardirqs_on();
+
+	/*
+	 * Mark interrupts as soft-enabled and clear the
+	 * PACA_IRQ_HARD_DIS from the pending mask since we
+	 * are about to hard enable as well as a side effect
+	 * of entering the low power state.
+	 */
+	local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+	local_paca->soft_enabled = 1;
+
+	/* Tell the caller to enter the low power state */
+	return true;
+}
+
 #endif /* CONFIG_PPC64 */
 
 int arch_show_interrupts(struct seq_file *p, int prec)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/machine_kexec_64.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/machine_kexec_64.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/machine_kexec_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/machine_kexec_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -162,6 +162,8 @@ static int kexec_all_irq_disabled = 0;
 static void kexec_smp_down(void *arg)
 {
 	local_irq_disable();
+	hard_irq_disable();
+
 	mb(); /* make sure our irqs are disabled before we say they are */
 	get_paca()->kexec_state = KEXEC_STATE_IRQS_OFF;
 	while(kexec_all_irq_disabled == 0)
@@ -244,6 +246,8 @@ static void kexec_prepare_cpus(void)
 	wake_offline_cpus();
 	smp_call_function(kexec_smp_down, NULL, /* wait */0);
 	local_irq_disable();
+	hard_irq_disable();
+
 	mb(); /* make sure IRQs are disabled before we say they are */
 	get_paca()->kexec_state = KEXEC_STATE_IRQS_OFF;
 
@@ -281,6 +285,7 @@ static void kexec_prepare_cpus(void)
 	if (ppc_md.kexec_cpu_down)
 		ppc_md.kexec_cpu_down(0, 0);
 	local_irq_disable();
+	hard_irq_disable();
 }
 
 #endif /* SMP */
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/module_32.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/module_32.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/module_32.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/module_32.c	2013-07-13 14:03:57.000000000 -0400
@@ -176,8 +176,8 @@ int module_frob_arch_sections(Elf32_Ehdr
 
 static inline int entry_matches(struct ppc_plt_entry *entry, Elf32_Addr val)
 {
-	if (entry->jump[0] == 0x3d600000 + ((val + 0x8000) >> 16)
-	    && entry->jump[1] == 0x396b0000 + (val & 0xffff))
+	if (entry->jump[0] == 0x3d800000 + ((val + 0x8000) >> 16)
+	    && entry->jump[1] == 0x398c0000 + (val & 0xffff))
 		return 1;
 	return 0;
 }
@@ -204,10 +204,9 @@ static uint32_t do_plt_call(void *locati
 		entry++;
 	}
 
-	/* Stolen from Paul Mackerras as well... */
-	entry->jump[0] = 0x3d600000+((val+0x8000)>>16);	/* lis r11,sym@ha */
-	entry->jump[1] = 0x396b0000 + (val&0xffff);	/* addi r11,r11,sym@l*/
-	entry->jump[2] = 0x7d6903a6;			/* mtctr r11 */
+	entry->jump[0] = 0x3d800000+((val+0x8000)>>16); /* lis r12,sym@ha */
+	entry->jump[1] = 0x398c0000 + (val&0xffff);     /* addi r12,r12,sym@l*/
+	entry->jump[2] = 0x7d8903a6;                    /* mtctr r12 */
 	entry->jump[3] = 0x4e800420;			/* bctr */
 
 	DEBUGP("Initialized plt for 0x%x at %p\n", val, entry);
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/process.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/process.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -799,16 +799,8 @@ int copy_thread(unsigned long clone_flag
 #endif /* CONFIG_PPC_STD_MMU_64 */
 #ifdef CONFIG_PPC64 
 	if (cpu_has_feature(CPU_FTR_DSCR)) {
-		if (current->thread.dscr_inherit) {
-			p->thread.dscr_inherit = 1;
-			p->thread.dscr = current->thread.dscr;
-		} else if (0 != dscr_default) {
-			p->thread.dscr_inherit = 1;
-			p->thread.dscr = dscr_default;
-		} else {
-			p->thread.dscr_inherit = 0;
-			p->thread.dscr = 0;
-		}
+		p->thread.dscr_inherit = current->thread.dscr_inherit;
+		p->thread.dscr = current->thread.dscr;
 	}
 #endif
 
@@ -1226,7 +1218,7 @@ EXPORT_SYMBOL(dump_stack);
 
 #ifdef CONFIG_PPC64
 /* Called with hard IRQs off */
-void __ppc64_runlatch_on(void)
+void notrace __ppc64_runlatch_on(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
@@ -1239,7 +1231,7 @@ void __ppc64_runlatch_on(void)
 }
 
 /* Called with hard IRQs off */
-void __ppc64_runlatch_off(void)
+void notrace __ppc64_runlatch_off(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/rtas.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/rtas.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/rtas.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/rtas.c	2013-07-13 14:03:57.000000000 -0400
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/capability.h>
 #include <linux/delay.h>
+#include <linux/cpu.h>
 #include <linux/smp.h>
 #include <linux/completion.h>
 #include <linux/cpumask.h>
@@ -808,6 +809,95 @@ static void rtas_percpu_suspend_me(void
 	__rtas_suspend_cpu((struct rtas_suspend_me_data *)info, 1);
 }
 
+enum rtas_cpu_state {
+	DOWN,
+	UP,
+};
+
+#ifndef CONFIG_SMP
+static int rtas_cpu_state_change_mask(enum rtas_cpu_state state,
+				cpumask_var_t cpus)
+{
+	if (!cpumask_empty(cpus)) {
+		cpumask_clear(cpus);
+		return -EINVAL;
+	} else
+		return 0;
+}
+#else
+/* On return cpumask will be altered to indicate CPUs changed.
+ * CPUs with states changed will be set in the mask,
+ * CPUs with status unchanged will be unset in the mask. */
+static int rtas_cpu_state_change_mask(enum rtas_cpu_state state,
+				cpumask_var_t cpus)
+{
+	int cpu;
+	int cpuret = 0;
+	int ret = 0;
+
+	if (cpumask_empty(cpus))
+		return 0;
+
+	for_each_cpu(cpu, cpus) {
+		switch (state) {
+		case DOWN:
+			cpuret = cpu_down(cpu);
+			break;
+		case UP:
+			cpuret = cpu_up(cpu);
+			break;
+		}
+		if (cpuret) {
+			pr_debug("%s: cpu_%s for cpu#%d returned %d.\n",
+					__func__,
+					((state == UP) ? "up" : "down"),
+					cpu, cpuret);
+			if (!ret)
+				ret = cpuret;
+			if (state == UP) {
+				/* clear bits for unchanged cpus, return */
+				cpumask_shift_right(cpus, cpus, cpu);
+				cpumask_shift_left(cpus, cpus, cpu);
+				break;
+			} else {
+				/* clear bit for unchanged cpu, continue */
+				cpumask_clear_cpu(cpu, cpus);
+			}
+		}
+	}
+
+	return ret;
+}
+#endif
+
+int rtas_online_cpus_mask(cpumask_var_t cpus)
+{
+	int ret;
+
+	ret = rtas_cpu_state_change_mask(UP, cpus);
+
+	if (ret) {
+		cpumask_var_t tmp_mask;
+
+		if (!alloc_cpumask_var(&tmp_mask, GFP_TEMPORARY))
+			return ret;
+
+		/* Use tmp_mask to preserve cpus mask from first failure */
+		cpumask_copy(tmp_mask, cpus);
+		rtas_offline_cpus_mask(tmp_mask);
+		free_cpumask_var(tmp_mask);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(rtas_online_cpus_mask);
+
+int rtas_offline_cpus_mask(cpumask_var_t cpus)
+{
+	return rtas_cpu_state_change_mask(DOWN, cpus);
+}
+EXPORT_SYMBOL(rtas_offline_cpus_mask);
+
 int rtas_ibm_suspend_me(struct rtas_args *args)
 {
 	long state;
@@ -815,6 +905,8 @@ int rtas_ibm_suspend_me(struct rtas_args
 	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
 	struct rtas_suspend_me_data data;
 	DECLARE_COMPLETION_ONSTACK(done);
+	cpumask_var_t offline_mask;
+	int cpuret;
 
 	if (!rtas_service_present("ibm,suspend-me"))
 		return -ENOSYS;
@@ -838,11 +930,24 @@ int rtas_ibm_suspend_me(struct rtas_args
 		return 0;
 	}
 
+	if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+		return -ENOMEM;
+
 	atomic_set(&data.working, 0);
 	atomic_set(&data.done, 0);
 	atomic_set(&data.error, 0);
 	data.token = rtas_token("ibm,suspend-me");
 	data.complete = &done;
+
+	/* All present CPUs must be online */
+	cpumask_andnot(offline_mask, cpu_present_mask, cpu_online_mask);
+	cpuret = rtas_online_cpus_mask(offline_mask);
+	if (cpuret) {
+		pr_err("%s: Could not bring present CPUs online.\n", __func__);
+		atomic_set(&data.error, cpuret);
+		goto out;
+	}
+
 	stop_topology_update();
 
 	/* Call function on all CPUs.  One of us will make the
@@ -858,6 +963,14 @@ int rtas_ibm_suspend_me(struct rtas_args
 
 	start_topology_update();
 
+	/* Take down CPUs not online prior to suspend */
+	cpuret = rtas_offline_cpus_mask(offline_mask);
+	if (cpuret)
+		pr_warn("%s: Could not restore CPUs to offline state.\n",
+				__func__);
+
+out:
+	free_cpumask_var(offline_mask);
 	return atomic_read(&data.error);
 }
 #else /* CONFIG_PPC_PSERIES */
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/smp.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/smp.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/smp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/smp.c	2013-07-13 14:03:57.000000000 -0400
@@ -215,8 +215,15 @@ void smp_muxed_ipi_message_pass(int cpu,
 	struct cpu_messages *info = &per_cpu(ipi_message, cpu);
 	char *message = (char *)&info->messages;
 
+	/*
+	 * Order previous accesses before accesses in the IPI handler.
+	 */
+	smp_mb();
 	message[msg] = 1;
-	mb();
+	/*
+	 * cause_ipi functions are required to include a full barrier
+	 * before doing whatever causes the IPI.
+	 */
 	smp_ops->cause_ipi(cpu, info->data);
 }
 
@@ -228,7 +235,7 @@ irqreturn_t smp_ipi_demux(void)
 	mb();	/* order any irq clear */
 
 	do {
-		all = xchg_local(&info->messages, 0);
+		all = xchg(&info->messages, 0);
 
 #ifdef __BIG_ENDIAN
 		if (all & (1 << (24 - 8 * PPC_MSG_CALL_FUNCTION)))
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/sysfs.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/sysfs.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/sysfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/sysfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -194,6 +194,14 @@ static ssize_t show_dscr_default(struct
 	return sprintf(buf, "%lx\n", dscr_default);
 }
 
+static void update_dscr(void *dummy)
+{
+	if (!current->thread.dscr_inherit) {
+		current->thread.dscr = dscr_default;
+		mtspr(SPRN_DSCR, dscr_default);
+	}
+}
+
 static ssize_t __used store_dscr_default(struct device *dev,
 		struct device_attribute *attr, const char *buf,
 		size_t count)
@@ -206,6 +214,8 @@ static ssize_t __used store_dscr_default
 		return -EINVAL;
 	dscr_default = val;
 
+	on_each_cpu(update_dscr, NULL, 1);
+
 	return count;
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/time.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/time.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/time.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/time.c	2013-07-13 14:03:57.000000000 -0400
@@ -474,6 +474,7 @@ void timer_interrupt(struct pt_regs * re
 	struct pt_regs *old_regs;
 	u64 *next_tb = &__get_cpu_var(decrementers_next_tb);
 	struct clock_event_device *evt = &__get_cpu_var(decrementers);
+	u64 now;
 
 	/* Ensure a positive value is written to the decrementer, or else
 	 * some CPUs will continue to take decrementer exceptions.
@@ -508,9 +509,16 @@ void timer_interrupt(struct pt_regs * re
 		irq_work_run();
 	}
 
-	*next_tb = ~(u64)0;
-	if (evt->event_handler)
-		evt->event_handler(evt);
+	now = get_tb_or_rtc();
+	if (now >= *next_tb) {
+		*next_tb = ~(u64)0;
+		if (evt->event_handler)
+			evt->event_handler(evt);
+	} else {
+		now = *next_tb - now;
+		if (now <= DECREMENTER_MAX)
+			set_dec((int)now);
+	}
 
 #ifdef CONFIG_PPC64
 	/* collect purr register values often, for accurate calculations */
@@ -741,13 +749,8 @@ void update_vsyscall(struct timespec *wa
 
 void update_vsyscall_tz(void)
 {
-	/* Make userspace gettimeofday spin until we're done. */
-	++vdso_data->tb_update_count;
-	smp_mb();
 	vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
 	vdso_data->tz_dsttime = sys_tz.tz_dsttime;
-	smp_mb();
-	++vdso_data->tb_update_count;
 }
 
 static void __init clocksource_init(void)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kernel/traps.c linux-libre-3.4.53-gnu1/arch/powerpc/kernel/traps.c
--- linux-libre-3.4-gnu1/arch/powerpc/kernel/traps.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kernel/traps.c	2013-07-13 14:03:57.000000000 -0400
@@ -960,7 +960,10 @@ static int emulate_instruction(struct pt
 
 #ifdef CONFIG_PPC64
 	/* Emulate the mfspr rD, DSCR. */
-	if (((instword & PPC_INST_MFSPR_DSCR_MASK) == PPC_INST_MFSPR_DSCR) &&
+	if ((((instword & PPC_INST_MFSPR_DSCR_USER_MASK) ==
+		PPC_INST_MFSPR_DSCR_USER) ||
+	     ((instword & PPC_INST_MFSPR_DSCR_MASK) ==
+		PPC_INST_MFSPR_DSCR)) &&
 			cpu_has_feature(CPU_FTR_DSCR)) {
 		PPC_WARN_EMULATED(mfdscr, regs);
 		rd = (instword >> 21) & 0x1f;
@@ -968,12 +971,16 @@ static int emulate_instruction(struct pt
 		return 0;
 	}
 	/* Emulate the mtspr DSCR, rD. */
-	if (((instword & PPC_INST_MTSPR_DSCR_MASK) == PPC_INST_MTSPR_DSCR) &&
+	if ((((instword & PPC_INST_MTSPR_DSCR_USER_MASK) ==
+		PPC_INST_MTSPR_DSCR_USER) ||
+	     ((instword & PPC_INST_MTSPR_DSCR_MASK) ==
+		PPC_INST_MTSPR_DSCR)) &&
 			cpu_has_feature(CPU_FTR_DSCR)) {
 		PPC_WARN_EMULATED(mtdscr, regs);
 		rd = (instword >> 21) & 0x1f;
-		mtspr(SPRN_DSCR, regs->gpr[rd]);
+		current->thread.dscr = regs->gpr[rd];
 		current->thread.dscr_inherit = 1;
+		mtspr(SPRN_DSCR, current->thread.dscr);
 		return 0;
 	}
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kvm/44x_emulate.c linux-libre-3.4.53-gnu1/arch/powerpc/kvm/44x_emulate.c
--- linux-libre-3.4-gnu1/arch/powerpc/kvm/44x_emulate.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kvm/44x_emulate.c	2013-07-13 14:03:57.000000000 -0400
@@ -79,6 +79,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
 				run->dcr.dcrn = dcrn;
 				run->dcr.data =  0;
 				run->dcr.is_write = 0;
+				vcpu->arch.dcr_is_write = 0;
 				vcpu->arch.io_gpr = rt;
 				vcpu->arch.dcr_needed = 1;
 				kvmppc_account_exit(vcpu, DCR_EXITS);
@@ -100,6 +101,7 @@ int kvmppc_core_emulate_op(struct kvm_ru
 				run->dcr.dcrn = dcrn;
 				run->dcr.data = kvmppc_get_gpr(vcpu, rs);
 				run->dcr.is_write = 1;
+				vcpu->arch.dcr_is_write = 1;
 				vcpu->arch.dcr_needed = 1;
 				kvmppc_account_exit(vcpu, DCR_EXITS);
 				emulated = EMULATE_DO_DCR;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/kvm/book3s_hv_rmhandlers.S linux-libre-3.4.53-gnu1/arch/powerpc/kvm/book3s_hv_rmhandlers.S
--- linux-libre-3.4-gnu1/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/kvm/book3s_hv_rmhandlers.S	2013-07-13 14:03:57.000000000 -0400
@@ -776,7 +776,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	lwz	r3,VCORE_NAPPING_THREADS(r5)
 	lwz	r4,VCPU_PTID(r9)
 	li	r0,1
-	sldi	r0,r0,r4
+	sld	r0,r0,r4
 	andc.	r3,r3,r0		/* no sense IPI'ing ourselves */
 	beq	43f
 	mulli	r4,r4,PACA_SIZE		/* get paca for thread 0 */
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/mm/hash_utils_64.c linux-libre-3.4.53-gnu1/arch/powerpc/mm/hash_utils_64.c
--- linux-libre-3.4-gnu1/arch/powerpc/mm/hash_utils_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/mm/hash_utils_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -759,6 +759,8 @@ void __init early_init_mmu(void)
 	/* Initialize stab / SLB management */
 	if (mmu_has_feature(MMU_FTR_SLB))
 		slb_initialize();
+	else
+		stab_initialize(get_paca()->stab_real);
 }
 
 #ifdef CONFIG_SMP
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/mm/numa.c linux-libre-3.4.53-gnu1/arch/powerpc/mm/numa.c
--- linux-libre-3.4-gnu1/arch/powerpc/mm/numa.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/mm/numa.c	2013-07-13 14:03:57.000000000 -0400
@@ -201,7 +201,7 @@ int __node_distance(int a, int b)
 	int distance = LOCAL_DISTANCE;
 
 	if (!form1_affinity)
-		return distance;
+		return ((a == b) ? LOCAL_DISTANCE : REMOTE_DISTANCE);
 
 	for (i = 0; i < distance_ref_points_depth; i++) {
 		if (distance_lookup_table[a][i] == distance_lookup_table[b][i])
@@ -635,7 +635,7 @@ static inline int __init read_usm_ranges
  */
 static void __init parse_drconf_memory(struct device_node *memory)
 {
-	const u32 *dm, *usm;
+	const u32 *uninitialized_var(dm), *usm;
 	unsigned int n, rc, ranges, is_kexec_kdump = 0;
 	unsigned long lmb_size, base, size, sz;
 	int nid;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/40x/ppc40x_simple.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/40x/ppc40x_simple.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/40x/ppc40x_simple.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/40x/ppc40x_simple.c	2013-07-13 14:03:57.000000000 -0400
@@ -57,7 +57,8 @@ static const char *board[] __initdata =
 	"amcc,makalu",
 	"apm,klondike",
 	"est,hotfoot",
-	"plathome,obs600"
+	"plathome,obs600",
+	NULL
 };
 
 static int __init ppc40x_probe(void)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/85xx/p1022_ds.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/85xx/p1022_ds.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/85xx/p1022_ds.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/85xx/p1022_ds.c	2013-07-13 14:03:57.000000000 -0400
@@ -27,6 +27,7 @@
 #include <sysdev/fsl_pci.h>
 #include <asm/udbg.h>
 #include <asm/fsl_guts.h>
+#include <asm/fsl_lbc.h>
 #include "smp.h"
 
 #include "mpc85xx.h"
@@ -142,17 +143,74 @@ static void p1022ds_set_gamma_table(enum
 {
 }
 
+struct fsl_law {
+	u32	lawbar;
+	u32	reserved1;
+	u32	lawar;
+	u32	reserved[5];
+};
+
+#define LAWBAR_MASK	0x00F00000
+#define LAWBAR_SHIFT	12
+
+#define LAWAR_EN	0x80000000
+#define LAWAR_TGT_MASK	0x01F00000
+#define LAW_TRGT_IF_LBC	(0x04 << 20)
+
+#define LAWAR_MASK	(LAWAR_EN | LAWAR_TGT_MASK)
+#define LAWAR_MATCH	(LAWAR_EN | LAW_TRGT_IF_LBC)
+
+#define BR_BA		0xFFFF8000
+
+/*
+ * Map a BRx value to a physical address
+ *
+ * The localbus BRx registers only store the lower 32 bits of the address.  To
+ * obtain the upper four bits, we need to scan the LAW table.  The entry which
+ * maps to the localbus will contain the upper four bits.
+ */
+static phys_addr_t lbc_br_to_phys(const void *ecm, unsigned int count, u32 br)
+{
+#ifndef CONFIG_PHYS_64BIT
+	/*
+	 * If we only have 32-bit addressing, then the BRx address *is* the
+	 * physical address.
+	 */
+	return br & BR_BA;
+#else
+	const struct fsl_law *law = ecm + 0xc08;
+	unsigned int i;
+
+	for (i = 0; i < count; i++) {
+		u64 lawbar = in_be32(&law[i].lawbar);
+		u32 lawar = in_be32(&law[i].lawar);
+
+		if ((lawar & LAWAR_MASK) == LAWAR_MATCH)
+			/* Extract the upper four bits */
+			return (br & BR_BA) | ((lawbar & LAWBAR_MASK) << 12);
+	}
+
+	return 0;
+#endif
+}
+
 /**
  * p1022ds_set_monitor_port: switch the output to a different monitor port
- *
  */
 static void p1022ds_set_monitor_port(enum fsl_diu_monitor_port port)
 {
 	struct device_node *guts_node;
-	struct device_node *indirect_node = NULL;
+	struct device_node *lbc_node = NULL;
+	struct device_node *law_node = NULL;
 	struct ccsr_guts __iomem *guts;
+	struct fsl_lbc_regs *lbc = NULL;
+	void *ecm = NULL;
 	u8 __iomem *lbc_lcs0_ba = NULL;
 	u8 __iomem *lbc_lcs1_ba = NULL;
+	phys_addr_t cs0_addr, cs1_addr;
+	u32 br0, or0, br1, or1;
+	const __be32 *iprop;
+	unsigned int num_laws;
 	u8 b;
 
 	/* Map the global utilities registers. */
@@ -168,22 +226,99 @@ static void p1022ds_set_monitor_port(enu
 		goto exit;
 	}
 
-	indirect_node = of_find_compatible_node(NULL, NULL,
-					     "fsl,p1022ds-indirect-pixis");
-	if (!indirect_node) {
-		pr_err("p1022ds: missing pixis indirect mode node\n");
+	lbc_node = of_find_compatible_node(NULL, NULL, "fsl,p1022-elbc");
+	if (!lbc_node) {
+		pr_err("p1022ds: missing localbus node\n");
 		goto exit;
 	}
 
-	lbc_lcs0_ba = of_iomap(indirect_node, 0);
-	if (!lbc_lcs0_ba) {
-		pr_err("p1022ds: could not map localbus chip select 0\n");
+	lbc = of_iomap(lbc_node, 0);
+	if (!lbc) {
+		pr_err("p1022ds: could not map localbus node\n");
 		goto exit;
 	}
 
-	lbc_lcs1_ba = of_iomap(indirect_node, 1);
+	law_node = of_find_compatible_node(NULL, NULL, "fsl,ecm-law");
+	if (!law_node) {
+		pr_err("p1022ds: missing local access window node\n");
+		goto exit;
+	}
+
+	ecm = of_iomap(law_node, 0);
+	if (!ecm) {
+		pr_err("p1022ds: could not map local access window node\n");
+		goto exit;
+	}
+
+	iprop = of_get_property(law_node, "fsl,num-laws", 0);
+	if (!iprop) {
+		pr_err("p1022ds: LAW node is missing fsl,num-laws property\n");
+		goto exit;
+	}
+	num_laws = be32_to_cpup(iprop);
+
+	/*
+	 * Indirect mode requires both BR0 and BR1 to be set to "GPCM",
+	 * otherwise writes to these addresses won't actually appear on the
+	 * local bus, and so the PIXIS won't see them.
+	 *
+	 * In FCM mode, writes go to the NAND controller, which does not pass
+	 * them to the localbus directly.  So we force BR0 and BR1 into GPCM
+	 * mode, since we don't care about what's behind the localbus any
+	 * more.
+	 */
+	br0 = in_be32(&lbc->bank[0].br);
+	br1 = in_be32(&lbc->bank[1].br);
+	or0 = in_be32(&lbc->bank[0].or);
+	or1 = in_be32(&lbc->bank[1].or);
+
+	/* Make sure CS0 and CS1 are programmed */
+	if (!(br0 & BR_V) || !(br1 & BR_V)) {
+		pr_err("p1022ds: CS0 and/or CS1 is not programmed\n");
+		goto exit;
+	}
+
+	/*
+	 * Use the existing BRx/ORx values if it's already GPCM. Otherwise,
+	 * force the values to simple 32KB GPCM windows with the most
+	 * conservative timing.
+	 */
+	if ((br0 & BR_MSEL) != BR_MS_GPCM) {
+		br0 = (br0 & BR_BA) | BR_V;
+		or0 = 0xFFFF8000 | 0xFF7;
+		out_be32(&lbc->bank[0].br, br0);
+		out_be32(&lbc->bank[0].or, or0);
+	}
+	if ((br1 & BR_MSEL) != BR_MS_GPCM) {
+		br1 = (br1 & BR_BA) | BR_V;
+		or1 = 0xFFFF8000 | 0xFF7;
+		out_be32(&lbc->bank[1].br, br1);
+		out_be32(&lbc->bank[1].or, or1);
+	}
+
+	cs0_addr = lbc_br_to_phys(ecm, num_laws, br0);
+	if (!cs0_addr) {
+		pr_err("p1022ds: could not determine physical address for CS0"
+		       " (BR0=%08x)\n", br0);
+		goto exit;
+	}
+	cs1_addr = lbc_br_to_phys(ecm, num_laws, br1);
+	if (!cs0_addr) {
+		pr_err("p1022ds: could not determine physical address for CS1"
+		       " (BR1=%08x)\n", br1);
+		goto exit;
+	}
+
+	lbc_lcs0_ba = ioremap(cs0_addr, 1);
+	if (!lbc_lcs0_ba) {
+		pr_err("p1022ds: could not ioremap CS0 address %llx\n",
+		       (unsigned long long)cs0_addr);
+		goto exit;
+	}
+	lbc_lcs1_ba = ioremap(cs1_addr, 1);
 	if (!lbc_lcs1_ba) {
-		pr_err("p1022ds: could not map localbus chip select 1\n");
+		pr_err("p1022ds: could not ioremap CS1 address %llx\n",
+		       (unsigned long long)cs1_addr);
 		goto exit;
 	}
 
@@ -254,10 +389,15 @@ exit:
 		iounmap(lbc_lcs1_ba);
 	if (lbc_lcs0_ba)
 		iounmap(lbc_lcs0_ba);
+	if (lbc)
+		iounmap(lbc);
+	if (ecm)
+		iounmap(ecm);
 	if (guts)
 		iounmap(guts);
 
-	of_node_put(indirect_node);
+	of_node_put(law_node);
+	of_node_put(lbc_node);
 	of_node_put(guts_node);
 }
 
@@ -355,6 +495,8 @@ static void __init disable_one_node(stru
 		prom_update_property(np, new, old);
 	else
 		prom_add_property(np, new);
+
+	pr_info("p1022ds: disabling %s node\n", np->full_name);
 }
 
 /* TRUE if there is a "video=fslfb" command-line parameter. */
@@ -419,28 +561,46 @@ static void __init p1022_ds_setup_arch(v
 	diu_ops.valid_monitor_port	= p1022ds_valid_monitor_port;
 
 	/*
-	 * Disable the NOR flash node if there is video=fslfb... command-line
-	 * parameter.  When the DIU is active, NOR flash is unavailable, so we
-	 * have to disable the node before the MTD driver loads.
+	 * Disable the NOR and NAND flash nodes if there is video=fslfb...
+	 * command-line parameter.  When the DIU is active, the localbus is
+	 * unavailable, so we have to disable these nodes before the MTD
+	 * driver loads.
 	 */
 	if (fslfb) {
 		struct device_node *np =
 			of_find_compatible_node(NULL, NULL, "fsl,p1022-elbc");
 
 		if (np) {
-			np = of_find_compatible_node(np, NULL, "cfi-flash");
-			if (np) {
+			struct device_node *np2;
+
+			of_node_get(np);
+			np2 = of_find_compatible_node(np, NULL, "cfi-flash");
+			if (np2) {
 				static struct property nor_status = {
 					.name = "status",
 					.value = "disabled",
 					.length = sizeof("disabled"),
 				};
 
-				pr_info("p1022ds: disabling %s node",
-					np->full_name);
-				disable_one_node(np, &nor_status);
-				of_node_put(np);
+				disable_one_node(np2, &nor_status);
+				of_node_put(np2);
 			}
+
+			of_node_get(np);
+			np2 = of_find_compatible_node(np, NULL,
+						      "fsl,elbc-fcm-nand");
+			if (np2) {
+				static struct property nand_status = {
+					.name = "status",
+					.value = "disabled",
+					.length = sizeof("disabled"),
+				};
+
+				disable_one_node(np2, &nand_status);
+				of_node_put(np2);
+			}
+
+			of_node_put(np);
 		}
 
 	}
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/cell/pervasive.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/cell/pervasive.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/cell/pervasive.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/cell/pervasive.c	2013-07-13 14:03:57.000000000 -0400
@@ -42,11 +42,9 @@ static void cbe_power_save(void)
 {
 	unsigned long ctrl, thread_switch_control;
 
-	/*
-	 * We need to hard disable interrupts, the local_irq_enable() done by
-	 * our caller upon return will hard re-enable.
-	 */
-	hard_irq_disable();
+	/* Ensure our interrupt state is properly tracked */
+	if (!prep_irq_for_idle())
+		return;
 
 	ctrl = mfspr(SPRN_CTRLF);
 
@@ -81,6 +79,9 @@ static void cbe_power_save(void)
 	 */
 	ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
 	mtspr(SPRN_CTRLT, ctrl);
+
+	/* Re-enable interrupts in MSR */
+	__hard_irq_enable();
 }
 
 static int cbe_system_reset_exception(struct pt_regs *regs)
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/cell/spufs/inode.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/cell/spufs/inode.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/cell/spufs/inode.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/cell/spufs/inode.c	2013-07-13 14:03:57.000000000 -0400
@@ -99,6 +99,7 @@ spufs_new_inode(struct super_block *sb,
 	if (!inode)
 		goto out;
 
+	inode->i_ino = get_next_ino();
 	inode->i_mode = mode;
 	inode->i_uid = current_fsuid();
 	inode->i_gid = current_fsgid();
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh.c	2013-07-13 14:03:57.000000000 -0400
@@ -1029,7 +1029,7 @@ static void eeh_add_device_early(struct
 {
 	struct pci_controller *phb;
 
-	if (!dn || !of_node_to_eeh_dev(dn))
+	if (!of_node_to_eeh_dev(dn))
 		return;
 	phb = of_node_to_eeh_dev(dn)->phb;
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_driver.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_driver.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_driver.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_driver.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,6 +25,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/module.h>
 #include <linux/pci.h>
 #include <asm/eeh.h>
 #include <asm/eeh_event.h>
@@ -47,6 +48,41 @@ static inline const char *eeh_pcid_name(
 	return "";
 }
 
+/**
+ * eeh_pcid_get - Get the PCI device driver
+ * @pdev: PCI device
+ *
+ * The function is used to retrieve the PCI device driver for
+ * the indicated PCI device. Besides, we will increase the reference
+ * of the PCI device driver to prevent that being unloaded on
+ * the fly. Otherwise, kernel crash would be seen.
+ */
+static inline struct pci_driver *eeh_pcid_get(struct pci_dev *pdev)
+{
+	if (!pdev || !pdev->driver)
+		return NULL;
+
+	if (!try_module_get(pdev->driver->driver.owner))
+		return NULL;
+
+	return pdev->driver;
+}
+
+/**
+ * eeh_pcid_put - Dereference on the PCI device driver
+ * @pdev: PCI device
+ *
+ * The function is called to do dereference on the PCI device
+ * driver of the indicated PCI device.
+ */
+static inline void eeh_pcid_put(struct pci_dev *pdev)
+{
+	if (!pdev || !pdev->driver)
+		return;
+
+	module_put(pdev->driver->driver.owner);
+}
+
 #if 0
 static void print_device_node_tree(struct pci_dn *pdn, int dent)
 {
@@ -126,18 +162,20 @@ static void eeh_enable_irq(struct pci_de
 static int eeh_report_error(struct pci_dev *dev, void *userdata)
 {
 	enum pci_ers_result rc, *res = userdata;
-	struct pci_driver *driver = dev->driver;
+	struct pci_driver *driver;
 
 	dev->error_state = pci_channel_io_frozen;
 
-	if (!driver)
-		return 0;
+	driver = eeh_pcid_get(dev);
+	if (!driver) return 0;
 
 	eeh_disable_irq(dev);
 
 	if (!driver->err_handler ||
-	    !driver->err_handler->error_detected)
+	    !driver->err_handler->error_detected) {
+		eeh_pcid_put(dev);
 		return 0;
+	}
 
 	rc = driver->err_handler->error_detected(dev, pci_channel_io_frozen);
 
@@ -145,6 +183,7 @@ static int eeh_report_error(struct pci_d
 	if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
 	if (*res == PCI_ERS_RESULT_NONE) *res = rc;
 
+	eeh_pcid_put(dev);
 	return 0;
 }
 
@@ -160,12 +199,16 @@ static int eeh_report_error(struct pci_d
 static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
 {
 	enum pci_ers_result rc, *res = userdata;
-	struct pci_driver *driver = dev->driver;
+	struct pci_driver *driver;
 
-	if (!driver ||
-	    !driver->err_handler ||
-	    !driver->err_handler->mmio_enabled)
+	driver = eeh_pcid_get(dev);
+	if (!driver) return 0;
+
+	if (!driver->err_handler ||
+	    !driver->err_handler->mmio_enabled) {
+		eeh_pcid_put(dev);
 		return 0;
+	}
 
 	rc = driver->err_handler->mmio_enabled(dev);
 
@@ -173,6 +216,7 @@ static int eeh_report_mmio_enabled(struc
 	if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
 	if (*res == PCI_ERS_RESULT_NONE) *res = rc;
 
+	eeh_pcid_put(dev);
 	return 0;
 }
 
@@ -189,18 +233,20 @@ static int eeh_report_mmio_enabled(struc
 static int eeh_report_reset(struct pci_dev *dev, void *userdata)
 {
 	enum pci_ers_result rc, *res = userdata;
-	struct pci_driver *driver = dev->driver;
-
-	if (!driver)
-		return 0;
+	struct pci_driver *driver;
 
 	dev->error_state = pci_channel_io_normal;
 
+	driver = eeh_pcid_get(dev);
+	if (!driver) return 0;
+
 	eeh_enable_irq(dev);
 
 	if (!driver->err_handler ||
-	    !driver->err_handler->slot_reset)
+	    !driver->err_handler->slot_reset) {
+		eeh_pcid_put(dev);
 		return 0;
+	}
 
 	rc = driver->err_handler->slot_reset(dev);
 	if ((*res == PCI_ERS_RESULT_NONE) ||
@@ -208,6 +254,7 @@ static int eeh_report_reset(struct pci_d
 	if (*res == PCI_ERS_RESULT_DISCONNECT &&
 	     rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
 
+	eeh_pcid_put(dev);
 	return 0;
 }
 
@@ -222,21 +269,24 @@ static int eeh_report_reset(struct pci_d
  */
 static int eeh_report_resume(struct pci_dev *dev, void *userdata)
 {
-	struct pci_driver *driver = dev->driver;
+	struct pci_driver *driver;
 
 	dev->error_state = pci_channel_io_normal;
 
-	if (!driver)
-		return 0;
+	driver = eeh_pcid_get(dev);
+	if (!driver) return 0;
 
 	eeh_enable_irq(dev);
 
 	if (!driver->err_handler ||
-	    !driver->err_handler->resume)
+	    !driver->err_handler->resume) {
+		eeh_pcid_put(dev);
 		return 0;
+	}
 
 	driver->err_handler->resume(dev);
 
+	eeh_pcid_put(dev);
 	return 0;
 }
 
@@ -250,21 +300,24 @@ static int eeh_report_resume(struct pci_
  */
 static int eeh_report_failure(struct pci_dev *dev, void *userdata)
 {
-	struct pci_driver *driver = dev->driver;
+	struct pci_driver *driver;
 
 	dev->error_state = pci_channel_io_perm_failure;
 
-	if (!driver)
-		return 0;
+	driver = eeh_pcid_get(dev);
+	if (!driver) return 0;
 
 	eeh_disable_irq(dev);
 
 	if (!driver->err_handler ||
-	    !driver->err_handler->error_detected)
+	    !driver->err_handler->error_detected) {
+		eeh_pcid_put(dev);
 		return 0;
+	}
 
 	driver->err_handler->error_detected(dev, pci_channel_io_perm_failure);
 
+	eeh_pcid_put(dev);
 	return 0;
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_event.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_event.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_event.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_event.c	2013-07-13 14:03:57.000000000 -0400
@@ -85,8 +85,10 @@ static int eeh_event_handler(void * dumm
 	set_current_state(TASK_INTERRUPTIBLE);	/* Don't add to load average */
 	edev = handle_eeh_events(event);
 
-	eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING);
-	pci_dev_put(edev->pdev);
+	if (edev) {
+		eeh_clear_slot(eeh_dev_to_of_node(edev), EEH_MODE_RECOVERING);
+		pci_dev_put(edev->pdev);
+	}
 
 	kfree(event);
 	mutex_unlock(&eeh_event_mutex);
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_pseries.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_pseries.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/eeh_pseries.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/eeh_pseries.c	2013-07-13 14:03:57.000000000 -0400
@@ -83,7 +83,11 @@ static int pseries_eeh_init(void)
 	ibm_configure_pe		= rtas_token("ibm,configure-pe");
 	ibm_configure_bridge		= rtas_token ("ibm,configure-bridge");
 
-	/* necessary sanity check */
+	/*
+	 * Necessary sanity check. We needn't check "get-config-addr-info"
+	 * and its variant since the old firmware probably support address
+	 * of domain/bus/slot/function for EEH RTAS operations.
+	 */
 	if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n",
 			__func__);
@@ -102,12 +106,6 @@ static int pseries_eeh_init(void)
 		pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n",
 			__func__);
 		return -EINVAL;
-	} else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE &&
-		   ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) {
-		pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and "
-			"<ibm,get-config-addr-info> invalid\n",
-			__func__);
-		return -EINVAL;
 	} else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE &&
 		   ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,configure-pe> and "
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/iommu.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/iommu.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/iommu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/iommu.c	2013-07-13 14:03:57.000000000 -0400
@@ -106,7 +106,7 @@ static int tce_build_pSeries(struct iomm
 		tcep++;
 	}
 
-	if (tbl->it_type == TCE_PCI_SWINV_CREATE)
+	if (tbl->it_type & TCE_PCI_SWINV_CREATE)
 		tce_invalidate_pSeries_sw(tbl, tces, tcep - 1);
 	return 0;
 }
@@ -121,7 +121,7 @@ static void tce_free_pSeries(struct iomm
 	while (npages--)
 		*(tcep++) = 0;
 
-	if (tbl->it_type == TCE_PCI_SWINV_FREE)
+	if (tbl->it_type & TCE_PCI_SWINV_FREE)
 		tce_invalidate_pSeries_sw(tbl, tces, tcep - 1);
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/lpar.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/lpar.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/lpar.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/lpar.c	2013-07-13 14:03:57.000000000 -0400
@@ -187,7 +187,13 @@ static long pSeries_lpar_hpte_remove(uns
 					   (0x1UL << 4), &dummy1, &dummy2);
 		if (lpar_rc == H_SUCCESS)
 			return i;
-		BUG_ON(lpar_rc != H_NOT_FOUND);
+
+		/*
+		 * The test for adjunct partition is performed before the
+		 * ANDCOND test.  H_RESOURCE may be returned, so we need to
+		 * check for that as well.
+		 */
+		BUG_ON(lpar_rc != H_NOT_FOUND && lpar_rc != H_RESOURCE);
 
 		slot_offset++;
 		slot_offset &= 0x7;
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/processor_idle.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/processor_idle.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/processor_idle.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/processor_idle.c	2013-07-13 14:03:57.000000000 -0400
@@ -99,15 +99,18 @@ out:
 static void check_and_cede_processor(void)
 {
 	/*
-	 * Interrupts are soft-disabled at this point,
-	 * but not hard disabled. So an interrupt might have
-	 * occurred before entering NAP, and would be potentially
-	 * lost (edge events, decrementer events, etc...) unless
-	 * we first hard disable then check.
+	 * Ensure our interrupt state is properly tracked,
+	 * also checks if no interrupt has occurred while we
+	 * were soft-disabled
 	 */
-	hard_irq_disable();
-	if (get_paca()->irq_happened == 0)
+	if (prep_irq_for_idle()) {
 		cede_processor();
+#ifdef CONFIG_TRACE_IRQFLAGS
+		/* Ensure that H_CEDE returns with IRQs on */
+		if (WARN_ON(!(mfmsr() & MSR_EE)))
+			__hard_irq_enable();
+#endif
+	}
 }
 
 static int dedicated_cede_loop(struct cpuidle_device *dev,
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/suspend.c linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/suspend.c
--- linux-libre-3.4-gnu1/arch/powerpc/platforms/pseries/suspend.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/platforms/pseries/suspend.c	2013-07-13 14:03:57.000000000 -0400
@@ -16,6 +16,7 @@
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */
 
+#include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/suspend.h>
 #include <linux/stat.h>
@@ -126,11 +127,15 @@ static ssize_t store_hibernate(struct de
 			       struct device_attribute *attr,
 			       const char *buf, size_t count)
 {
+	cpumask_var_t offline_mask;
 	int rc;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+	if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+		return -ENOMEM;
+
 	stream_id = simple_strtoul(buf, NULL, 16);
 
 	do {
@@ -140,15 +145,32 @@ static ssize_t store_hibernate(struct de
 	} while (rc == -EAGAIN);
 
 	if (!rc) {
+		/* All present CPUs must be online */
+		cpumask_andnot(offline_mask, cpu_present_mask,
+				cpu_online_mask);
+		rc = rtas_online_cpus_mask(offline_mask);
+		if (rc) {
+			pr_err("%s: Could not bring present CPUs online.\n",
+					__func__);
+			goto out;
+		}
+
 		stop_topology_update();
 		rc = pm_suspend(PM_SUSPEND_MEM);
 		start_topology_update();
+
+		/* Take down CPUs not online prior to suspend */
+		if (!rtas_offline_cpus_mask(offline_mask))
+			pr_warn("%s: Could not restore CPUs to offline "
+					"state.\n", __func__);
 	}
 
 	stream_id = 0;
 
 	if (!rc)
 		rc = count;
+out:
+	free_cpumask_var(offline_mask);
 	return rc;
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/sysdev/xics/icp-hv.c linux-libre-3.4.53-gnu1/arch/powerpc/sysdev/xics/icp-hv.c
--- linux-libre-3.4-gnu1/arch/powerpc/sysdev/xics/icp-hv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/sysdev/xics/icp-hv.c	2013-07-13 14:03:57.000000000 -0400
@@ -65,7 +65,11 @@ static inline void icp_hv_set_xirr(unsig
 static inline void icp_hv_set_qirr(int n_cpu , u8 value)
 {
 	int hw_cpu = get_hard_smp_processor_id(n_cpu);
-	long rc = plpar_hcall_norets(H_IPI, hw_cpu, value);
+	long rc;
+
+	/* Make sure all previous accesses are ordered before IPI sending */
+	mb();
+	rc = plpar_hcall_norets(H_IPI, hw_cpu, value);
 	if (rc != H_SUCCESS) {
 		pr_err("%s: bad return code qirr cpu=%d hw_cpu=%d mfrr=0x%x "
 			"returned %ld\n", __func__, n_cpu, hw_cpu, value, rc);
diff -druNp linux-libre-3.4-gnu1/arch/powerpc/xmon/xmon.c linux-libre-3.4.53-gnu1/arch/powerpc/xmon/xmon.c
--- linux-libre-3.4-gnu1/arch/powerpc/xmon/xmon.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/powerpc/xmon/xmon.c	2013-07-13 14:03:57.000000000 -0400
@@ -971,7 +971,7 @@ static int cpu_cmd(void)
 		/* print cpus waiting or in xmon */
 		printf("cpus stopped:");
 		count = 0;
-		for (cpu = 0; cpu < NR_CPUS; ++cpu) {
+		for_each_possible_cpu(cpu) {
 			if (cpumask_test_cpu(cpu, &cpus_in_xmon)) {
 				if (count == 0)
 					printf(" %x", cpu);
diff -druNp linux-libre-3.4-gnu1/arch/s390/boot/compressed/vmlinux.lds.S linux-libre-3.4.53-gnu1/arch/s390/boot/compressed/vmlinux.lds.S
--- linux-libre-3.4-gnu1/arch/s390/boot/compressed/vmlinux.lds.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/boot/compressed/vmlinux.lds.S	2013-07-13 14:03:57.000000000 -0400
@@ -5,7 +5,7 @@ OUTPUT_FORMAT("elf64-s390", "elf64-s390"
 OUTPUT_ARCH(s390:64-bit)
 #else
 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
-OUTPUT_ARCH(s390)
+OUTPUT_ARCH(s390:31-bit)
 #endif
 
 ENTRY(startup)
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/compat.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/compat.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/compat.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/compat.h	2013-07-13 14:03:57.000000000 -0400
@@ -20,7 +20,7 @@
 #define PSW32_MASK_CC		0x00003000UL
 #define PSW32_MASK_PM		0x00000f00UL
 
-#define PSW32_MASK_USER		0x00003F00UL
+#define PSW32_MASK_USER		0x0000FF00UL
 
 #define PSW32_ADDR_AMODE	0x80000000UL
 #define PSW32_ADDR_INSN		0x7FFFFFFFUL
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/mmu_context.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/mmu_context.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/mmu_context.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/mmu_context.h	2013-07-13 14:03:57.000000000 -0400
@@ -13,7 +13,6 @@
 #include <asm/uaccess.h>
 #include <asm/tlbflush.h>
 #include <asm/ctl_reg.h>
-#include <asm-generic/mm_hooks.h>
 
 static inline int init_new_context(struct task_struct *tsk,
 				   struct mm_struct *mm)
@@ -93,4 +92,17 @@ static inline void activate_mm(struct mm
         switch_mm(prev, next, current);
 }
 
+static inline void arch_dup_mmap(struct mm_struct *oldmm,
+				 struct mm_struct *mm)
+{
+#ifdef CONFIG_64BIT
+	if (oldmm->context.asce_limit < mm->context.asce_limit)
+		crst_table_downgrade(mm, oldmm->context.asce_limit);
+#endif
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
 #endif /* __S390_MMU_CONTEXT_H */
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/processor.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/processor.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/processor.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/processor.h	2013-07-13 14:03:57.000000000 -0400
@@ -129,7 +129,9 @@ struct stack_frame {
 	regs->psw.mask	= psw_user_bits | PSW_MASK_BA;			\
 	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;			\
 	regs->gprs[15]	= new_stackp;					\
+	__tlb_flush_mm(current->mm);					\
 	crst_table_downgrade(current->mm, 1UL << 31);			\
+	update_mm(current->mm, current);				\
 } while (0)
 
 /* Forward declaration, a strange C thing */
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/ptrace.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/ptrace.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/ptrace.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/ptrace.h	2013-07-13 14:03:57.000000000 -0400
@@ -240,7 +240,7 @@ typedef struct
 #define PSW_MASK_EA		0x00000000UL
 #define PSW_MASK_BA		0x00000000UL
 
-#define PSW_MASK_USER		0x00003F00UL
+#define PSW_MASK_USER		0x0000FF00UL
 
 #define PSW_ADDR_AMODE		0x80000000UL
 #define PSW_ADDR_INSN		0x7FFFFFFFUL
@@ -269,7 +269,7 @@ typedef struct
 #define PSW_MASK_EA		0x0000000100000000UL
 #define PSW_MASK_BA		0x0000000080000000UL
 
-#define PSW_MASK_USER		0x00003F0180000000UL
+#define PSW_MASK_USER		0x0000FF0180000000UL
 
 #define PSW_ADDR_AMODE		0x0000000000000000UL
 #define PSW_ADDR_INSN		0xFFFFFFFFFFFFFFFFUL
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -131,6 +131,7 @@ struct sigaction {
         void (*sa_restorer)(void);
         sigset_t sa_mask;               /* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
         struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/timex.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/timex.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/timex.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/timex.h	2013-07-13 14:03:57.000000000 -0400
@@ -137,4 +137,32 @@ static inline unsigned long long get_clo
 	return get_clock_xt() - sched_clock_base_cc;
 }
 
+/**
+ * tod_to_ns - convert a TOD format value to nanoseconds
+ * @todval: to be converted TOD format value
+ * Returns: number of nanoseconds that correspond to the TOD format value
+ *
+ * Converting a 64 Bit TOD format value to nanoseconds means that the value
+ * must be divided by 4.096. In order to achieve that we multiply with 125
+ * and divide by 512:
+ *
+ *    ns = (todval * 125) >> 9;
+ *
+ * In order to avoid an overflow with the multiplication we can rewrite this.
+ * With a split todval == 2^32 * th + tl (th upper 32 bits, tl lower 32 bits)
+ * we end up with
+ *
+ *    ns = ((2^32 * th + tl) * 125 ) >> 9;
+ * -> ns = (2^23 * th * 125) + ((tl * 125) >> 9);
+ *
+ */
+static inline unsigned long long tod_to_ns(unsigned long long todval)
+{
+	unsigned long long ns;
+
+	ns = ((todval >> 32) << 23) * 125;
+	ns += ((todval & 0xffffffff) * 125) >> 9;
+	return ns;
+}
+
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/s390/include/asm/tlbflush.h linux-libre-3.4.53-gnu1/arch/s390/include/asm/tlbflush.h
--- linux-libre-3.4-gnu1/arch/s390/include/asm/tlbflush.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/include/asm/tlbflush.h	2013-07-13 14:03:57.000000000 -0400
@@ -74,8 +74,6 @@ static inline void __tlb_flush_idte(unsi
 
 static inline void __tlb_flush_mm(struct mm_struct * mm)
 {
-	if (unlikely(cpumask_empty(mm_cpumask(mm))))
-		return;
 	/*
 	 * If the machine has IDTE we prefer to do a per mm flush
 	 * on all cpus instead of doing a local flush if the mm
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/compat_linux.c linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_linux.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/compat_linux.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_linux.c	2013-07-13 14:03:57.000000000 -0400
@@ -612,7 +612,6 @@ asmlinkage unsigned long old32_mmap(stru
 		return -EFAULT;
 	if (a.offset & ~PAGE_MASK)
 		return -EINVAL;
-	a.addr = (unsigned long) compat_ptr(a.addr);
 	return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd,
 			      a.offset >> PAGE_SHIFT);
 }
@@ -623,7 +622,6 @@ asmlinkage long sys32_mmap2(struct mmap_
 
 	if (copy_from_user(&a, arg, sizeof(a)))
 		return -EFAULT;
-	a.addr = (unsigned long) compat_ptr(a.addr);
 	return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/compat_signal.c linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_signal.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/compat_signal.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_signal.c	2013-07-13 14:03:57.000000000 -0400
@@ -313,6 +313,10 @@ static int restore_sigregs32(struct pt_r
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
 		(__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
+	/* Check for invalid user address space control. */
+	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+			(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN);
 	for (i = 0; i < NUM_GPRS; i++)
 		regs->gprs[i] = (__u64) regs32.gprs[i];
@@ -494,7 +498,10 @@ static int setup_frame32(int sig, struct
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (__force __u64) frame;
-	regs->psw.mask |= PSW_MASK_BA;		/* force amode 31 */
+	/* Force 31 bit amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__force __u64) ka->sa.sa_handler;
 
 	regs->gprs[2] = map_signal(sig);
@@ -562,7 +569,10 @@ static int setup_rt_frame32(int sig, str
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (__force __u64) frame;
-	regs->psw.mask |= PSW_MASK_BA;		/* force amode 31 */
+	/* Force 31 bit amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64) ka->sa.sa_handler;
 
 	regs->gprs[2] = map_signal(sig);
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/compat_wrapper.S linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_wrapper.S
--- linux-libre-3.4-gnu1/arch/s390/kernel/compat_wrapper.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/compat_wrapper.S	2013-07-13 14:03:57.000000000 -0400
@@ -1636,7 +1636,7 @@ ENTRY(compat_sys_process_vm_readv_wrappe
 	llgfr	%r6,%r6			# unsigned long
 	llgf	%r0,164(%r15)		# unsigned long
 	stg	%r0,160(%r15)
-	jg	sys_process_vm_readv
+	jg	compat_sys_process_vm_readv
 
 ENTRY(compat_sys_process_vm_writev_wrapper)
 	lgfr	%r2,%r2			# compat_pid_t
@@ -1646,4 +1646,4 @@ ENTRY(compat_sys_process_vm_writev_wrapp
 	llgfr	%r6,%r6			# unsigned long
 	llgf	%r0,164(%r15)		# unsigned long
 	stg	%r0,160(%r15)
-	jg	sys_process_vm_writev
+	jg	compat_sys_process_vm_writev
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/entry64.S linux-libre-3.4.53-gnu1/arch/s390/kernel/entry64.S
--- linux-libre-3.4-gnu1/arch/s390/kernel/entry64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/entry64.S	2013-07-13 14:03:57.000000000 -0400
@@ -689,8 +689,9 @@ ENTRY(mcck_int_handler)
 	UPDATE_VTIME %r14,__LC_MCCK_ENTER_TIMER
 	LAST_BREAK %r14
 mcck_skip:
-	lghi	%r14,__LC_GPREGS_SAVE_AREA
-	mvc	__PT_R0(128,%r11),0(%r14)
+	lghi	%r14,__LC_GPREGS_SAVE_AREA+64
+	stmg	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(64,%r11),0(%r14)
 	stmg	%r8,%r9,__PT_PSW(%r11)
 	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
 	lgr	%r2,%r11		# pass pointer to pt_regs
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/entry.S linux-libre-3.4.53-gnu1/arch/s390/kernel/entry.S
--- linux-libre-3.4-gnu1/arch/s390/kernel/entry.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/entry.S	2013-07-13 14:03:57.000000000 -0400
@@ -669,7 +669,8 @@ ENTRY(mcck_int_handler)
 	UPDATE_VTIME %r14,%r15,__LC_MCCK_ENTER_TIMER
 mcck_skip:
 	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+32,__LC_PANIC_STACK,PAGE_SHIFT
-	mvc	__PT_R0(64,%r11),__LC_GPREGS_SAVE_AREA
+	stm	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(32,%r11),__LC_GPREGS_SAVE_AREA+32
 	stm	%r8,%r9,__PT_PSW(%r11)
 	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
 	l	%r1,BASED(.Ldo_machine_check)
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/processor.c linux-libre-3.4.53-gnu1/arch/s390/kernel/processor.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/processor.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/processor.c	2013-07-13 14:03:57.000000000 -0400
@@ -26,12 +26,14 @@ static DEFINE_PER_CPU(struct cpuid, cpu_
 void __cpuinit cpu_init(void)
 {
 	struct cpuid *id = &per_cpu(cpu_id, smp_processor_id());
+	struct s390_idle_data *idle = &__get_cpu_var(s390_idle);
 
 	get_cpu_id(id);
 	atomic_inc(&init_mm.mm_count);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);
+	memset(idle, 0, sizeof(*idle));
 }
 
 /*
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/signal.c linux-libre-3.4.53-gnu1/arch/s390/kernel/signal.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/signal.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/signal.c	2013-07-13 14:03:57.000000000 -0400
@@ -148,6 +148,10 @@ static int restore_sigregs(struct pt_reg
 	/* Use regs->psw.mask instead of psw_user_bits to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(user_sregs.regs.psw.mask & PSW_MASK_USER);
+	/* Check for invalid user address space control. */
+	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
+		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+			(regs->psw.mask & ~PSW_MASK_ASC);
 	/* Check for invalid amode */
 	if (regs->psw.mask & PSW_MASK_EA)
 		regs->psw.mask |= PSW_MASK_BA;
@@ -294,7 +298,10 @@ static int setup_frame(int sig, struct k
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (unsigned long) frame;
-	regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;	/* 64 bit amode */
+	/* Force default amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
 	regs->gprs[2] = map_signal(sig);
@@ -367,7 +374,10 @@ static int setup_rt_frame(int sig, struc
 
 	/* Set up registers for signal handler */
 	regs->gprs[15] = (unsigned long) frame;
-	regs->psw.mask |= PSW_MASK_EA | PSW_MASK_BA;	/* 64 bit amode */
+	/* Force default amode and default user address space control. */
+	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
+		(psw_user_bits & PSW_MASK_ASC) |
+		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
 	regs->gprs[2] = map_signal(sig);
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/smp.c linux-libre-3.4.53-gnu1/arch/s390/kernel/smp.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/smp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/smp.c	2013-07-13 14:03:57.000000000 -0400
@@ -1034,14 +1034,11 @@ static int __cpuinit smp_cpu_notify(stru
 	unsigned int cpu = (unsigned int)(long)hcpu;
 	struct cpu *c = &pcpu_devices[cpu].cpu;
 	struct device *s = &c->dev;
-	struct s390_idle_data *idle;
 	int err = 0;
 
 	switch (action) {
 	case CPU_ONLINE:
 	case CPU_ONLINE_FROZEN:
-		idle = &per_cpu(s390_idle, cpu);
-		memset(idle, 0, sizeof(struct s390_idle_data));
 		err = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
 		break;
 	case CPU_DEAD:
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/time.c linux-libre-3.4.53-gnu1/arch/s390/kernel/time.c
--- linux-libre-3.4-gnu1/arch/s390/kernel/time.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/time.c	2013-07-13 14:03:57.000000000 -0400
@@ -64,7 +64,7 @@ static DEFINE_PER_CPU(struct clock_event
  */
 unsigned long long notrace __kprobes sched_clock(void)
 {
-	return (get_clock_monotonic() * 125) >> 9;
+	return tod_to_ns(get_clock_monotonic());
 }
 
 /*
@@ -121,6 +121,9 @@ static int s390_next_ktime(ktime_t expir
 	nsecs = ktime_to_ns(ktime_add(timespec_to_ktime(ts), expires));
 	do_div(nsecs, 125);
 	S390_lowcore.clock_comparator = sched_clock_base_cc + (nsecs << 9);
+	/* Program the maximum value if we have an overflow (== year 2042) */
+	if (unlikely(S390_lowcore.clock_comparator < sched_clock_base_cc))
+		S390_lowcore.clock_comparator = -1ULL;
 	set_clock_comparator(S390_lowcore.clock_comparator);
 	return 0;
 }
diff -druNp linux-libre-3.4-gnu1/arch/s390/kernel/vmlinux.lds.S linux-libre-3.4.53-gnu1/arch/s390/kernel/vmlinux.lds.S
--- linux-libre-3.4-gnu1/arch/s390/kernel/vmlinux.lds.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kernel/vmlinux.lds.S	2013-07-13 14:03:57.000000000 -0400
@@ -8,7 +8,7 @@
 
 #ifndef CONFIG_64BIT
 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
-OUTPUT_ARCH(s390)
+OUTPUT_ARCH(s390:31-bit)
 ENTRY(startup)
 jiffies = jiffies_64 + 4;
 #else
diff -druNp linux-libre-3.4-gnu1/arch/s390/kvm/interrupt.c linux-libre-3.4.53-gnu1/arch/s390/kvm/interrupt.c
--- linux-libre-3.4-gnu1/arch/s390/kvm/interrupt.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kvm/interrupt.c	2013-07-13 14:03:57.000000000 -0400
@@ -390,7 +390,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu
 		return 0;
 	}
 
-	sltime = ((vcpu->arch.sie_block->ckc - now)*125)>>9;
+	sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
 
 	hrtimer_start(&vcpu->arch.ckc_timer, ktime_set (0, sltime) , HRTIMER_MODE_REL);
 	VCPU_EVENT(vcpu, 5, "enabled wait via clock comparator: %llx ns", sltime);
diff -druNp linux-libre-3.4-gnu1/arch/s390/kvm/kvm-s390.c linux-libre-3.4.53-gnu1/arch/s390/kvm/kvm-s390.c
--- linux-libre-3.4-gnu1/arch/s390/kvm/kvm-s390.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/kvm/kvm-s390.c	2013-07-13 14:03:57.000000000 -0400
@@ -677,6 +677,14 @@ int kvm_s390_vcpu_store_status(struct kv
 	} else
 		prefix = 0;
 
+	/*
+	 * The guest FPRS and ACRS are in the host FPRS/ACRS due to the lazy
+	 * copying in vcpu load/put. Lets update our copies before we save
+	 * it into the save area
+	 */
+	save_fp_regs(&vcpu->arch.guest_fpregs);
+	save_access_regs(vcpu->run->s.regs.acrs);
+
 	if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs),
 			vcpu->arch.guest_fpregs.fprs, 128, prefix))
 		return -EFAULT;
diff -druNp linux-libre-3.4-gnu1/arch/s390/mm/fault.c linux-libre-3.4.53-gnu1/arch/s390/mm/fault.c
--- linux-libre-3.4-gnu1/arch/s390/mm/fault.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/mm/fault.c	2013-07-13 14:03:57.000000000 -0400
@@ -443,6 +443,7 @@ int __handle_fault(unsigned long uaddr,
 	struct pt_regs regs;
 	int access, fault;
 
+	/* Emulate a uaccess fault from kernel mode. */
 	regs.psw.mask = psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK;
 	if (!irqs_disabled())
 		regs.psw.mask |= PSW_MASK_IO | PSW_MASK_EXT;
@@ -452,12 +453,12 @@ int __handle_fault(unsigned long uaddr,
 	regs.int_parm_long = (uaddr & PAGE_MASK) | 2;
 	access = write ? VM_WRITE : VM_READ;
 	fault = do_exception(&regs, access);
-	if (unlikely(fault)) {
-		if (fault & VM_FAULT_OOM)
-			return -EFAULT;
-		else if (fault & VM_FAULT_SIGBUS)
-			do_sigbus(&regs);
-	}
+	/*
+	 * Since the fault happened in kernel mode while performing a uaccess
+	 * all we need to do now is emulating a fixup in case "fault" is not
+	 * zero.
+	 * For the calling uaccess functions this results always in -EFAULT.
+	 */
 	return fault ? -EFAULT : 0;
 }
 
@@ -574,6 +575,7 @@ static void pfault_interrupt(struct ext_
 			tsk->thread.pfault_wait = 0;
 			list_del(&tsk->thread.list);
 			wake_up_process(tsk);
+			put_task_struct(tsk);
 		} else {
 			/* Completion interrupt was faster than initial
 			 * interrupt. Set pfault_wait to -1 so the initial
@@ -588,14 +590,22 @@ static void pfault_interrupt(struct ext_
 		put_task_struct(tsk);
 	} else {
 		/* signal bit not set -> a real page is missing. */
-		if (tsk->thread.pfault_wait == -1) {
+		if (tsk->thread.pfault_wait == 1) {
+			/* Already on the list with a reference: put to sleep */
+			set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+			set_tsk_need_resched(tsk);
+		} else if (tsk->thread.pfault_wait == -1) {
 			/* Completion interrupt was faster than the initial
 			 * interrupt (pfault_wait == -1). Set pfault_wait
 			 * back to zero and exit. */
 			tsk->thread.pfault_wait = 0;
 		} else {
 			/* Initial interrupt arrived before completion
-			 * interrupt. Let the task sleep. */
+			 * interrupt. Let the task sleep.
+			 * An extra task reference is needed since a different
+			 * cpu may set the task state to TASK_RUNNING again
+			 * before the scheduler is reached. */
+			get_task_struct(tsk);
 			tsk->thread.pfault_wait = 1;
 			list_add(&tsk->thread.list, &pfault_list);
 			set_task_state(tsk, TASK_UNINTERRUPTIBLE);
@@ -620,6 +630,7 @@ static int __cpuinit pfault_cpu_notify(s
 			list_del(&thread->list);
 			tsk = container_of(thread, struct task_struct, thread);
 			wake_up_process(tsk);
+			put_task_struct(tsk);
 		}
 		spin_unlock_irq(&pfault_lock);
 		break;
diff -druNp linux-libre-3.4-gnu1/arch/s390/mm/gup.c linux-libre-3.4.53-gnu1/arch/s390/mm/gup.c
--- linux-libre-3.4-gnu1/arch/s390/mm/gup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/mm/gup.c	2013-07-13 14:03:57.000000000 -0400
@@ -183,7 +183,7 @@ int get_user_pages_fast(unsigned long st
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if (end < start)
+	if ((end < start) || (end > TASK_SIZE))
 		goto slow_irqon;
 
 	/*
diff -druNp linux-libre-3.4-gnu1/arch/s390/mm/mmap.c linux-libre-3.4.53-gnu1/arch/s390/mm/mmap.c
--- linux-libre-3.4-gnu1/arch/s390/mm/mmap.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/mm/mmap.c	2013-07-13 14:03:57.000000000 -0400
@@ -105,9 +105,15 @@ void arch_pick_mmap_layout(struct mm_str
 
 int s390_mmap_check(unsigned long addr, unsigned long len)
 {
+	int rc;
+
 	if (!is_compat_task() &&
-	    len >= TASK_SIZE && TASK_SIZE < (1UL << 53))
-		return crst_table_upgrade(current->mm, 1UL << 53);
+	    len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) {
+		rc = crst_table_upgrade(current->mm, 1UL << 53);
+		if (rc)
+			return rc;
+		update_mm(current->mm, current);
+	}
 	return 0;
 }
 
@@ -127,6 +133,7 @@ s390_get_unmapped_area(struct file *filp
 		rc = crst_table_upgrade(mm, 1UL << 53);
 		if (rc)
 			return (unsigned long) rc;
+		update_mm(mm, current);
 		area = arch_get_unmapped_area(filp, addr, len, pgoff, flags);
 	}
 	return area;
@@ -149,6 +156,7 @@ s390_get_unmapped_area_topdown(struct fi
 		rc = crst_table_upgrade(mm, 1UL << 53);
 		if (rc)
 			return (unsigned long) rc;
+		update_mm(mm, current);
 		area = arch_get_unmapped_area_topdown(filp, addr, len,
 						      pgoff, flags);
 	}
diff -druNp linux-libre-3.4-gnu1/arch/s390/mm/pgtable.c linux-libre-3.4.53-gnu1/arch/s390/mm/pgtable.c
--- linux-libre-3.4-gnu1/arch/s390/mm/pgtable.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/mm/pgtable.c	2013-07-13 14:03:57.000000000 -0400
@@ -85,7 +85,6 @@ repeat:
 		crst_table_free(mm, table);
 	if (mm->context.asce_limit < limit)
 		goto repeat;
-	update_mm(mm, current);
 	return 0;
 }
 
@@ -93,9 +92,6 @@ void crst_table_downgrade(struct mm_stru
 {
 	pgd_t *pgd;
 
-	if (mm->context.asce_limit <= limit)
-		return;
-	__tlb_flush_mm(mm);
 	while (mm->context.asce_limit > limit) {
 		pgd = mm->pgd;
 		switch (pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) {
@@ -118,7 +114,6 @@ void crst_table_downgrade(struct mm_stru
 		mm->task_size = mm->context.asce_limit;
 		crst_table_free(mm, (unsigned long *) pgd);
 	}
-	update_mm(mm, current);
 }
 #endif
 
diff -druNp linux-libre-3.4-gnu1/arch/s390/oprofile/init.c linux-libre-3.4.53-gnu1/arch/s390/oprofile/init.c
--- linux-libre-3.4-gnu1/arch/s390/oprofile/init.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/s390/oprofile/init.c	2013-07-13 14:03:57.000000000 -0400
@@ -171,7 +171,7 @@ static ssize_t hw_interval_write(struct
 	if (*offset)
 		return -EINVAL;
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
-	if (retval)
+	if (retval <= 0)
 		return retval;
 	if (val < oprofile_min_interval)
 		oprofile_hw_interval = oprofile_min_interval;
@@ -214,7 +214,7 @@ static ssize_t hwsampler_zero_write(stru
 		return -EINVAL;
 
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
-	if (retval)
+	if (retval <= 0)
 		return retval;
 	if (val != 0)
 		return -EINVAL;
@@ -245,7 +245,7 @@ static ssize_t hwsampler_kernel_write(st
 		return -EINVAL;
 
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
-	if (retval)
+	if (retval <= 0)
 		return retval;
 
 	if (val != 0 && val != 1)
@@ -280,7 +280,7 @@ static ssize_t hwsampler_user_write(stru
 		return -EINVAL;
 
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
-	if (retval)
+	if (retval <= 0)
 		return retval;
 
 	if (val != 0 && val != 1)
@@ -319,7 +319,7 @@ static ssize_t timer_enabled_write(struc
 		return -EINVAL;
 
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
-	if (retval)
+	if (retval <= 0)
 		return retval;
 
 	if (val != 0 && val != 1)
diff -druNp linux-libre-3.4-gnu1/arch/score/kernel/process.c linux-libre-3.4.53-gnu1/arch/score/kernel/process.c
--- linux-libre-3.4-gnu1/arch/score/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/score/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -27,6 +27,7 @@
 #include <linux/reboot.h>
 #include <linux/elfcore.h>
 #include <linux/pm.h>
+#include <linux/rcupdate.h>
 
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
@@ -50,9 +51,10 @@ void __noreturn cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			barrier();
-
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/sh/include/asm/elf.h linux-libre-3.4.53-gnu1/arch/sh/include/asm/elf.h
--- linux-libre-3.4-gnu1/arch/sh/include/asm/elf.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sh/include/asm/elf.h	2013-07-13 14:03:57.000000000 -0400
@@ -202,9 +202,9 @@ extern void __kernel_vsyscall;
 	if (vdso_enabled)					\
 		NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);	\
 	else							\
-		NEW_AUX_ENT(AT_IGNORE, 0);
+		NEW_AUX_ENT(AT_IGNORE, 0)
 #else
-#define VSYSCALL_AUX_ENT
+#define VSYSCALL_AUX_ENT	NEW_AUX_ENT(AT_IGNORE, 0)
 #endif /* CONFIG_VSYSCALL */
 
 #ifdef CONFIG_SH_FPU
diff -druNp linux-libre-3.4-gnu1/arch/sparc/include/asm/hugetlb.h linux-libre-3.4.53-gnu1/arch/sparc/include/asm/hugetlb.h
--- linux-libre-3.4-gnu1/arch/sparc/include/asm/hugetlb.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/include/asm/hugetlb.h	2013-07-13 14:03:57.000000000 -0400
@@ -58,14 +58,20 @@ static inline pte_t huge_pte_wrprotect(p
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
 					   unsigned long addr, pte_t *ptep)
 {
-	ptep_set_wrprotect(mm, addr, ptep);
+	pte_t old_pte = *ptep;
+	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
 }
 
 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
 					     unsigned long addr, pte_t *ptep,
 					     pte_t pte, int dirty)
 {
-	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
+	int changed = !pte_same(*ptep, pte);
+	if (changed) {
+		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+		flush_tlb_page(vma, addr);
+	}
+	return changed;
 }
 
 static inline pte_t huge_ptep_get(pte_t *ptep)
diff -druNp linux-libre-3.4-gnu1/arch/sparc/include/asm/pgtable_64.h linux-libre-3.4.53-gnu1/arch/sparc/include/asm/pgtable_64.h
--- linux-libre-3.4-gnu1/arch/sparc/include/asm/pgtable_64.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/include/asm/pgtable_64.h	2013-07-13 14:03:57.000000000 -0400
@@ -780,6 +780,7 @@ static inline int io_remap_pfn_range(str
 	return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot);
 }
 
+#include <asm/tlbflush.h>
 #include <asm-generic/pgtable.h>
 
 /* We provide our own get_unmapped_area to cope with VA holes and
diff -druNp linux-libre-3.4-gnu1/arch/sparc/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/sparc/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/sparc/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -192,6 +192,7 @@ struct __old_sigaction {
 	unsigned long		sa_flags;
 	void			(*sa_restorer)(void);  /* not used by Linux/SPARC yet */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 typedef struct sigaltstack {
 	void			__user *ss_sp;
diff -druNp linux-libre-3.4-gnu1/arch/sparc/include/asm/switch_to_64.h linux-libre-3.4.53-gnu1/arch/sparc/include/asm/switch_to_64.h
--- linux-libre-3.4-gnu1/arch/sparc/include/asm/switch_to_64.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/include/asm/switch_to_64.h	2013-07-13 14:03:57.000000000 -0400
@@ -18,8 +18,7 @@ do {						\
 	 * and 2 stores in this critical code path.  -DaveM
 	 */
 #define switch_to(prev, next, last)					\
-do {	flush_tlb_pending();						\
-	save_and_clear_fpu();						\
+do {	save_and_clear_fpu();						\
 	/* If you are tempted to conditionalize the following */	\
 	/* so that ASI is only written if it changes, think again. */	\
 	__asm__ __volatile__("wr %%g0, %0, %%asi"			\
diff -druNp linux-libre-3.4-gnu1/arch/sparc/include/asm/tlbflush_64.h linux-libre-3.4.53-gnu1/arch/sparc/include/asm/tlbflush_64.h
--- linux-libre-3.4-gnu1/arch/sparc/include/asm/tlbflush_64.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/include/asm/tlbflush_64.h	2013-07-13 14:03:57.000000000 -0400
@@ -11,24 +11,40 @@
 struct tlb_batch {
 	struct mm_struct *mm;
 	unsigned long tlb_nr;
+	unsigned long active;
 	unsigned long vaddrs[TLB_BATCH_NR];
 };
 
 extern void flush_tsb_kernel_range(unsigned long start, unsigned long end);
 extern void flush_tsb_user(struct tlb_batch *tb);
+extern void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);
 
 /* TLB flush operations. */
 
-extern void flush_tlb_pending(void);
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+}
 
-#define flush_tlb_range(vma,start,end)	\
-	do { (void)(start); flush_tlb_pending(); } while (0)
-#define flush_tlb_page(vma,addr)	flush_tlb_pending()
-#define flush_tlb_mm(mm)		flush_tlb_pending()
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+				  unsigned long vmaddr)
+{
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+				   unsigned long start, unsigned long end)
+{
+}
+
+#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
+
+extern void flush_tlb_pending(void);
+extern void arch_enter_lazy_mmu_mode(void);
+extern void arch_leave_lazy_mmu_mode(void);
+#define arch_flush_lazy_mmu_mode()      do {} while (0)
 
 /* Local cpu only.  */
 extern void __flush_tlb_all(void);
-
+extern void __flush_tlb_page(unsigned long context, unsigned long vaddr);
 extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
 
 #ifndef CONFIG_SMP
@@ -38,15 +54,24 @@ do {	flush_tsb_kernel_range(start,end);
 	__flush_tlb_kernel_range(start,end); \
 } while (0)
 
+static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
+{
+	__flush_tlb_page(CTX_HWBITS(mm->context), vaddr);
+}
+
 #else /* CONFIG_SMP */
 
 extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
+extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
 
 #define flush_tlb_kernel_range(start, end) \
 do {	flush_tsb_kernel_range(start,end); \
 	smp_flush_tlb_kernel_range(start, end); \
 } while (0)
 
+#define global_flush_tlb_page(mm, vaddr) \
+	smp_flush_tlb_page(mm, vaddr)
+
 #endif /* ! CONFIG_SMP */
 
 #endif /* _SPARC64_TLBFLUSH_H */
diff -druNp linux-libre-3.4-gnu1/arch/sparc/Kconfig linux-libre-3.4.53-gnu1/arch/sparc/Kconfig
--- linux-libre-3.4-gnu1/arch/sparc/Kconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/Kconfig	2013-07-13 14:03:57.000000000 -0400
@@ -584,6 +584,9 @@ config SYSVIPC_COMPAT
 	depends on COMPAT && SYSVIPC
 	default y
 
+config KEYS_COMPAT
+	def_bool y if COMPAT && KEYS
+
 endmenu
 
 source "net/Kconfig"
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/perf_event.c linux-libre-3.4.53-gnu1/arch/sparc/kernel/perf_event.c
--- linux-libre-3.4-gnu1/arch/sparc/kernel/perf_event.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/perf_event.c	2013-07-13 14:03:57.000000000 -0400
@@ -557,11 +557,13 @@ static u64 nop_for_index(int idx)
 
 static inline void sparc_pmu_enable_event(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc, int idx)
 {
-	u64 val, mask = mask_for_index(idx);
+	u64 enc, val, mask = mask_for_index(idx);
+
+	enc = perf_event_get_enc(cpuc->events[idx]);
 
 	val = cpuc->pcr;
 	val &= ~mask;
-	val |= hwc->config;
+	val |= event_encoding(enc, idx);
 	cpuc->pcr = val;
 
 	pcr_ops->write(cpuc->pcr);
@@ -1428,8 +1430,6 @@ static void perf_callchain_user_64(struc
 {
 	unsigned long ufp;
 
-	perf_callchain_store(entry, regs->tpc);
-
 	ufp = regs->u_regs[UREG_I6] + STACK_BIAS;
 	do {
 		struct sparc_stackf *usf, sf;
@@ -1450,8 +1450,6 @@ static void perf_callchain_user_32(struc
 {
 	unsigned long ufp;
 
-	perf_callchain_store(entry, regs->tpc);
-
 	ufp = regs->u_regs[UREG_I6] & 0xffffffffUL;
 	do {
 		struct sparc_stackf32 *usf, sf;
@@ -1470,6 +1468,11 @@ static void perf_callchain_user_32(struc
 void
 perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 {
+	perf_callchain_store(entry, regs->tpc);
+
+	if (!current->mm)
+		return;
+
 	flushw_user();
 	if (test_thread_flag(TIF_32BIT))
 		perf_callchain_user_32(entry, regs);
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/signal_64.c linux-libre-3.4.53-gnu1/arch/sparc/kernel/signal_64.c
--- linux-libre-3.4-gnu1/arch/sparc/kernel/signal_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/signal_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -309,9 +309,7 @@ void do_rt_sigreturn(struct pt_regs *reg
 		err |= restore_fpu_state(regs, fpu_save);
 
 	err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t));
-	err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf);
-
-	if (err)
+	if (err || do_sigaltstack(&sf->stack, NULL, (unsigned long)sf) == -EFAULT)
 		goto segv;
 
 	err |= __get_user(rwin_save, &sf->rwin_save);
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/smp_64.c linux-libre-3.4.53-gnu1/arch/sparc/kernel/smp_64.c
--- linux-libre-3.4-gnu1/arch/sparc/kernel/smp_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/smp_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -856,7 +856,7 @@ void smp_tsb_sync(struct mm_struct *mm)
 }
 
 extern unsigned long xcall_flush_tlb_mm;
-extern unsigned long xcall_flush_tlb_pending;
+extern unsigned long xcall_flush_tlb_page;
 extern unsigned long xcall_flush_tlb_kernel_range;
 extern unsigned long xcall_fetch_glob_regs;
 extern unsigned long xcall_receive_signal;
@@ -1070,22 +1070,55 @@ local_flush_and_out:
 	put_cpu();
 }
 
+struct tlb_pending_info {
+	unsigned long ctx;
+	unsigned long nr;
+	unsigned long *vaddrs;
+};
+
+static void tlb_pending_func(void *info)
+{
+	struct tlb_pending_info *t = info;
+
+	__flush_tlb_pending(t->ctx, t->nr, t->vaddrs);
+}
+
 void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long *vaddrs)
 {
 	u32 ctx = CTX_HWBITS(mm->context);
+	struct tlb_pending_info info;
 	int cpu = get_cpu();
 
+	info.ctx = ctx;
+	info.nr = nr;
+	info.vaddrs = vaddrs;
+
 	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
 		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
 	else
-		smp_cross_call_masked(&xcall_flush_tlb_pending,
-				      ctx, nr, (unsigned long) vaddrs,
-				      mm_cpumask(mm));
+		smp_call_function_many(mm_cpumask(mm), tlb_pending_func,
+				       &info, 1);
 
 	__flush_tlb_pending(ctx, nr, vaddrs);
 
 	put_cpu();
 }
+
+void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
+{
+	unsigned long context = CTX_HWBITS(mm->context);
+	int cpu = get_cpu();
+
+	if (mm == current->mm && atomic_read(&mm->mm_users) == 1)
+		cpumask_copy(mm_cpumask(mm), cpumask_of(cpu));
+	else
+		smp_cross_call_masked(&xcall_flush_tlb_page,
+				      context, vaddr, 0,
+				      mm_cpumask(mm));
+	__flush_tlb_page(context, vaddr);
+
+	put_cpu();
+}
 
 void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 {
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/syscalls.S linux-libre-3.4.53-gnu1/arch/sparc/kernel/syscalls.S
--- linux-libre-3.4-gnu1/arch/sparc/kernel/syscalls.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/syscalls.S	2013-07-13 14:03:57.000000000 -0400
@@ -212,24 +212,20 @@ linux_sparc_syscall:
 3:	stx	%o0, [%sp + PTREGS_OFF + PT_V9_I0]
 ret_sys_call:
 	ldx	[%sp + PTREGS_OFF + PT_V9_TSTATE], %g3
-	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
 	sra	%o0, 0, %o0
 	mov	%ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2
 	sllx	%g2, 32, %g2
 
-	/* Check if force_successful_syscall_return()
-	 * was invoked.
-	 */
-	ldub	[%g6 + TI_SYS_NOERROR], %l2
-	brnz,a,pn %l2, 80f
-	 stb	%g0, [%g6 + TI_SYS_NOERROR]
-
 	cmp	%o0, -ERESTART_RESTARTBLOCK
 	bgeu,pn	%xcc, 1f
-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6
-80:
+	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
+
+2:
+	stb	%g0, [%g6 + TI_SYS_NOERROR]
 	/* System call success, clear Carry condition code. */
 	andn	%g3, %g2, %g3
+3:
 	stx	%g3, [%sp + PTREGS_OFF + PT_V9_TSTATE]	
 	bne,pn	%icc, linux_syscall_trace2
 	 add	%l1, 0x4, %l2			! npc = npc+4
@@ -238,20 +234,20 @@ ret_sys_call:
 	 stx	%l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
 
 1:
+	/* Check if force_successful_syscall_return()
+	 * was invoked.
+	 */
+	ldub	[%g6 + TI_SYS_NOERROR], %l2
+	brnz,pn %l2, 2b
+	 ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
 	/* System call failure, set Carry condition code.
 	 * Also, get abs(errno) to return to the process.
 	 */
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6	
 	sub	%g0, %o0, %o0
-	or	%g3, %g2, %g3
 	stx	%o0, [%sp + PTREGS_OFF + PT_V9_I0]
-	stx	%g3, [%sp + PTREGS_OFF + PT_V9_TSTATE]
-	bne,pn	%icc, linux_syscall_trace2
-	 add	%l1, 0x4, %l2			! npc = npc+4
-	stx	%l1, [%sp + PTREGS_OFF + PT_V9_TPC]
+	ba,pt	%xcc, 3b
+	 or	%g3, %g2, %g3
 
-	b,pt	%xcc, rtrap
-	 stx	%l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
 linux_syscall_trace2:
 	call	syscall_trace_leave
 	 add	%sp, PTREGS_OFF, %o0
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/sys_sparc_64.c linux-libre-3.4.53-gnu1/arch/sparc/kernel/sys_sparc_64.c
--- linux-libre-3.4-gnu1/arch/sparc/kernel/sys_sparc_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/sys_sparc_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -519,12 +519,12 @@ SYSCALL_DEFINE1(sparc64_personality, uns
 {
 	int ret;
 
-	if (current->personality == PER_LINUX32 &&
-	    personality == PER_LINUX)
-		personality = PER_LINUX32;
+	if (personality(current->personality) == PER_LINUX32 &&
+	    personality(personality) == PER_LINUX)
+		personality |= PER_LINUX32;
 	ret = sys_personality(personality);
-	if (ret == PER_LINUX32)
-		ret = PER_LINUX;
+	if (personality(ret) == PER_LINUX32)
+		ret &= ~PER_LINUX32;
 
 	return ret;
 }
diff -druNp linux-libre-3.4-gnu1/arch/sparc/kernel/systbls_64.S linux-libre-3.4.53-gnu1/arch/sparc/kernel/systbls_64.S
--- linux-libre-3.4-gnu1/arch/sparc/kernel/systbls_64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/kernel/systbls_64.S	2013-07-13 14:03:57.000000000 -0400
@@ -74,7 +74,7 @@ sys_call_table32:
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
 	.word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
-/*280*/	.word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
+/*280*/	.word sys32_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat
 	.word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64
 /*290*/	.word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
 	.word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare
diff -druNp linux-libre-3.4-gnu1/arch/sparc/mm/init_64.c linux-libre-3.4.53-gnu1/arch/sparc/mm/init_64.c
--- linux-libre-3.4-gnu1/arch/sparc/mm/init_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/mm/init_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -2099,6 +2099,9 @@ EXPORT_SYMBOL(_PAGE_CACHE);
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
 unsigned long vmemmap_table[VMEMMAP_SIZE];
 
+static long __meminitdata addr_start, addr_end;
+static int __meminitdata node_start;
+
 int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
 {
 	unsigned long vstart = (unsigned long) start;
@@ -2129,15 +2132,30 @@ int __meminit vmemmap_populate(struct pa
 
 			*vmem_pp = pte_base | __pa(block);
 
-			printk(KERN_INFO "[%p-%p] page_structs=%lu "
-			       "node=%d entry=%lu/%lu\n", start, block, nr,
-			       node,
-			       addr >> VMEMMAP_CHUNK_SHIFT,
-			       VMEMMAP_SIZE);
+			/* check to see if we have contiguous blocks */
+			if (addr_end != addr || node_start != node) {
+				if (addr_start)
+					printk(KERN_DEBUG " [%lx-%lx] on node %d\n",
+					       addr_start, addr_end-1, node_start);
+				addr_start = addr;
+				node_start = node;
+			}
+			addr_end = addr + VMEMMAP_CHUNK;
 		}
 	}
 	return 0;
 }
+
+void __meminit vmemmap_populate_print_last(void)
+{
+	if (addr_start) {
+		printk(KERN_DEBUG " [%lx-%lx] on node %d\n",
+		       addr_start, addr_end-1, node_start);
+		addr_start = 0;
+		addr_end = 0;
+		node_start = 0;
+	}
+}
 #endif /* CONFIG_SPARSEMEM_VMEMMAP */
 
 static void prot_init_common(unsigned long page_none,
diff -druNp linux-libre-3.4-gnu1/arch/sparc/mm/tlb.c linux-libre-3.4.53-gnu1/arch/sparc/mm/tlb.c
--- linux-libre-3.4-gnu1/arch/sparc/mm/tlb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/mm/tlb.c	2013-07-13 14:03:57.000000000 -0400
@@ -24,11 +24,17 @@ static DEFINE_PER_CPU(struct tlb_batch,
 void flush_tlb_pending(void)
 {
 	struct tlb_batch *tb = &get_cpu_var(tlb_batch);
+	struct mm_struct *mm = tb->mm;
 
-	if (tb->tlb_nr) {
-		flush_tsb_user(tb);
+	if (!tb->tlb_nr)
+		goto out;
 
-		if (CTX_VALID(tb->mm->context)) {
+	flush_tsb_user(tb);
+
+	if (CTX_VALID(mm->context)) {
+		if (tb->tlb_nr == 1) {
+			global_flush_tlb_page(mm, tb->vaddrs[0]);
+		} else {
 #ifdef CONFIG_SMP
 			smp_flush_tlb_pending(tb->mm, tb->tlb_nr,
 					      &tb->vaddrs[0]);
@@ -37,12 +43,30 @@ void flush_tlb_pending(void)
 					    tb->tlb_nr, &tb->vaddrs[0]);
 #endif
 		}
-		tb->tlb_nr = 0;
 	}
 
+	tb->tlb_nr = 0;
+
+out:
 	put_cpu_var(tlb_batch);
 }
 
+void arch_enter_lazy_mmu_mode(void)
+{
+	struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+	tb->active = 1;
+}
+
+void arch_leave_lazy_mmu_mode(void)
+{
+	struct tlb_batch *tb = &__get_cpu_var(tlb_batch);
+
+	if (tb->tlb_nr)
+		flush_tlb_pending();
+	tb->active = 0;
+}
+
 void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr,
 		   pte_t *ptep, pte_t orig, int fullmm)
 {
@@ -90,6 +114,12 @@ no_cache_flush:
 		nr = 0;
 	}
 
+	if (!tb->active) {
+		global_flush_tlb_page(mm, vaddr);
+		flush_tsb_user_page(mm, vaddr);
+		goto out;
+	}
+
 	if (nr == 0)
 		tb->mm = mm;
 
@@ -98,5 +128,6 @@ no_cache_flush:
 	if (nr >= TLB_BATCH_NR)
 		flush_tlb_pending();
 
+out:
 	put_cpu_var(tlb_batch);
 }
diff -druNp linux-libre-3.4-gnu1/arch/sparc/mm/tsb.c linux-libre-3.4.53-gnu1/arch/sparc/mm/tsb.c
--- linux-libre-3.4-gnu1/arch/sparc/mm/tsb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/mm/tsb.c	2013-07-13 14:03:57.000000000 -0400
@@ -7,11 +7,10 @@
 #include <linux/preempt.h>
 #include <linux/slab.h>
 #include <asm/page.h>
-#include <asm/tlbflush.h>
-#include <asm/tlb.h>
-#include <asm/mmu_context.h>
 #include <asm/pgtable.h>
+#include <asm/mmu_context.h>
 #include <asm/tsb.h>
+#include <asm/tlb.h>
 #include <asm/oplib.h>
 
 extern struct tsb swapper_tsb[KERNEL_TSB_NENTRIES];
@@ -46,23 +45,27 @@ void flush_tsb_kernel_range(unsigned lon
 	}
 }
 
-static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
-			    unsigned long tsb, unsigned long nentries)
+static void __flush_tsb_one_entry(unsigned long tsb, unsigned long v,
+				  unsigned long hash_shift,
+				  unsigned long nentries)
 {
-	unsigned long i;
+	unsigned long tag, ent, hash;
 
-	for (i = 0; i < tb->tlb_nr; i++) {
-		unsigned long v = tb->vaddrs[i];
-		unsigned long tag, ent, hash;
+	v &= ~0x1UL;
+	hash = tsb_hash(v, hash_shift, nentries);
+	ent = tsb + (hash * sizeof(struct tsb));
+	tag = (v >> 22UL);
 
-		v &= ~0x1UL;
+	tsb_flush(ent, tag);
+}
 
-		hash = tsb_hash(v, hash_shift, nentries);
-		ent = tsb + (hash * sizeof(struct tsb));
-		tag = (v >> 22UL);
+static void __flush_tsb_one(struct tlb_batch *tb, unsigned long hash_shift,
+			    unsigned long tsb, unsigned long nentries)
+{
+	unsigned long i;
 
-		tsb_flush(ent, tag);
-	}
+	for (i = 0; i < tb->tlb_nr; i++)
+		__flush_tsb_one_entry(tsb, tb->vaddrs[i], hash_shift, nentries);
 }
 
 void flush_tsb_user(struct tlb_batch *tb)
@@ -88,6 +91,30 @@ void flush_tsb_user(struct tlb_batch *tb
 	}
 #endif
 	spin_unlock_irqrestore(&mm->context.lock, flags);
+}
+
+void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr)
+{
+	unsigned long nentries, base, flags;
+
+	spin_lock_irqsave(&mm->context.lock, flags);
+
+	base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb;
+	nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries;
+	if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+		base = __pa(base);
+	__flush_tsb_one_entry(base, vaddr, PAGE_SHIFT, nentries);
+
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
+	if (mm->context.tsb_block[MM_TSB_HUGE].tsb) {
+		base = (unsigned long) mm->context.tsb_block[MM_TSB_HUGE].tsb;
+		nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
+		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
+			base = __pa(base);
+		__flush_tsb_one_entry(base, vaddr, HPAGE_SHIFT, nentries);
+	}
+#endif
+	spin_unlock_irqrestore(&mm->context.lock, flags);
 }
 
 #if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
diff -druNp linux-libre-3.4-gnu1/arch/sparc/mm/ultra.S linux-libre-3.4.53-gnu1/arch/sparc/mm/ultra.S
--- linux-libre-3.4-gnu1/arch/sparc/mm/ultra.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/sparc/mm/ultra.S	2013-07-13 14:03:57.000000000 -0400
@@ -53,6 +53,33 @@ __flush_tlb_mm:		/* 18 insns */
 	nop
 
 	.align		32
+	.globl		__flush_tlb_page
+__flush_tlb_page:	/* 22 insns */
+	/* %o0 = context, %o1 = vaddr */
+	rdpr		%pstate, %g7
+	andn		%g7, PSTATE_IE, %g2
+	wrpr		%g2, %pstate
+	mov		SECONDARY_CONTEXT, %o4
+	ldxa		[%o4] ASI_DMMU, %g2
+	stxa		%o0, [%o4] ASI_DMMU
+	andcc		%o1, 1, %g0
+	andn		%o1, 1, %o3
+	be,pn		%icc, 1f
+	 or		%o3, 0x10, %o3
+	stxa		%g0, [%o3] ASI_IMMU_DEMAP
+1:	stxa		%g0, [%o3] ASI_DMMU_DEMAP
+	membar		#Sync
+	stxa		%g2, [%o4] ASI_DMMU
+	sethi		%hi(KERNBASE), %o4
+	flush		%o4
+	retl
+	 wrpr		%g7, 0x0, %pstate
+	nop
+	nop
+	nop
+	nop
+
+	.align		32
 	.globl		__flush_tlb_pending
 __flush_tlb_pending:	/* 26 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
@@ -203,6 +230,31 @@ __cheetah_flush_tlb_mm: /* 19 insns */
 	retl
 	 wrpr		%g7, 0x0, %pstate
 
+__cheetah_flush_tlb_page:	/* 22 insns */
+	/* %o0 = context, %o1 = vaddr */
+	rdpr		%pstate, %g7
+	andn		%g7, PSTATE_IE, %g2
+	wrpr		%g2, 0x0, %pstate
+	wrpr		%g0, 1, %tl
+	mov		PRIMARY_CONTEXT, %o4
+	ldxa		[%o4] ASI_DMMU, %g2
+	srlx		%g2, CTX_PGSZ1_NUC_SHIFT, %o3
+	sllx		%o3, CTX_PGSZ1_NUC_SHIFT, %o3
+	or		%o0, %o3, %o0	/* Preserve nucleus page size fields */
+	stxa		%o0, [%o4] ASI_DMMU
+	andcc		%o1, 1, %g0
+	be,pn		%icc, 1f
+	 andn		%o1, 1, %o3
+	stxa		%g0, [%o3] ASI_IMMU_DEMAP
+1:	stxa		%g0, [%o3] ASI_DMMU_DEMAP
+	membar		#Sync
+	stxa		%g2, [%o4] ASI_DMMU
+	sethi		%hi(KERNBASE), %o4
+	flush		%o4
+	wrpr		%g0, 0, %tl
+	retl
+	 wrpr		%g7, 0x0, %pstate
+
 __cheetah_flush_tlb_pending:	/* 27 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
 	rdpr		%pstate, %g7
@@ -269,6 +321,20 @@ __hypervisor_flush_tlb_mm: /* 10 insns *
 	retl
 	 nop
 
+__hypervisor_flush_tlb_page: /* 11 insns */
+	/* %o0 = context, %o1 = vaddr */
+	mov		%o0, %g2
+	mov		%o1, %o0              /* ARG0: vaddr + IMMU-bit */
+	mov		%g2, %o1	      /* ARG1: mmu context */
+	mov		HV_MMU_ALL, %o2	      /* ARG2: flags */
+	srlx		%o0, PAGE_SHIFT, %o0
+	sllx		%o0, PAGE_SHIFT, %o0
+	ta		HV_MMU_UNMAP_ADDR_TRAP
+	brnz,pn		%o0, __hypervisor_tlb_tl0_error
+	 mov		HV_MMU_UNMAP_ADDR_TRAP, %o1
+	retl
+	 nop
+
 __hypervisor_flush_tlb_pending: /* 16 insns */
 	/* %o0 = context, %o1 = nr, %o2 = vaddrs[] */
 	sllx		%o1, 3, %g1
@@ -339,6 +405,13 @@ cheetah_patch_cachetlbops:
 	call		tlb_patch_one
 	 mov		19, %o2
 
+	sethi		%hi(__flush_tlb_page), %o0
+	or		%o0, %lo(__flush_tlb_page), %o0
+	sethi		%hi(__cheetah_flush_tlb_page), %o1
+	or		%o1, %lo(__cheetah_flush_tlb_page), %o1
+	call		tlb_patch_one
+	 mov		22, %o2
+
 	sethi		%hi(__flush_tlb_pending), %o0
 	or		%o0, %lo(__flush_tlb_pending), %o0
 	sethi		%hi(__cheetah_flush_tlb_pending), %o1
@@ -397,10 +470,9 @@ xcall_flush_tlb_mm:	/* 21 insns */
 	nop
 	nop
 
-	.globl		xcall_flush_tlb_pending
-xcall_flush_tlb_pending:	/* 21 insns */
-	/* %g5=context, %g1=nr, %g7=vaddrs[] */
-	sllx		%g1, 3, %g1
+	.globl		xcall_flush_tlb_page
+xcall_flush_tlb_page:	/* 17 insns */
+	/* %g5=context, %g1=vaddr */
 	mov		PRIMARY_CONTEXT, %g4
 	ldxa		[%g4] ASI_DMMU, %g2
 	srlx		%g2, CTX_PGSZ1_NUC_SHIFT, %g4
@@ -408,20 +480,16 @@ xcall_flush_tlb_pending:	/* 21 insns */
 	or		%g5, %g4, %g5
 	mov		PRIMARY_CONTEXT, %g4
 	stxa		%g5, [%g4] ASI_DMMU
-1:	sub		%g1, (1 << 3), %g1
-	ldx		[%g7 + %g1], %g5
-	andcc		%g5, 0x1, %g0
+	andcc		%g1, 0x1, %g0
 	be,pn		%icc, 2f
-
-	 andn		%g5, 0x1, %g5
+	 andn		%g1, 0x1, %g5
 	stxa		%g0, [%g5] ASI_IMMU_DEMAP
 2:	stxa		%g0, [%g5] ASI_DMMU_DEMAP
 	membar		#Sync
-	brnz,pt		%g1, 1b
-	 nop
 	stxa		%g2, [%g4] ASI_DMMU
 	retry
 	nop
+	nop
 
 	.globl		xcall_flush_tlb_kernel_range
 xcall_flush_tlb_kernel_range:	/* 25 insns */
@@ -596,15 +664,13 @@ __hypervisor_xcall_flush_tlb_mm: /* 21 i
 	membar		#Sync
 	retry
 
-	.globl		__hypervisor_xcall_flush_tlb_pending
-__hypervisor_xcall_flush_tlb_pending: /* 21 insns */
-	/* %g5=ctx, %g1=nr, %g7=vaddrs[], %g2,%g3,%g4,g6=scratch */
-	sllx		%g1, 3, %g1
+	.globl		__hypervisor_xcall_flush_tlb_page
+__hypervisor_xcall_flush_tlb_page: /* 17 insns */
+	/* %g5=ctx, %g1=vaddr */
 	mov		%o0, %g2
 	mov		%o1, %g3
 	mov		%o2, %g4
-1:	sub		%g1, (1 << 3), %g1
-	ldx		[%g7 + %g1], %o0	/* ARG0: virtual address */
+	mov		%g1, %o0	        /* ARG0: virtual address */
 	mov		%g5, %o1		/* ARG1: mmu context */
 	mov		HV_MMU_ALL, %o2		/* ARG2: flags */
 	srlx		%o0, PAGE_SHIFT, %o0
@@ -613,8 +679,6 @@ __hypervisor_xcall_flush_tlb_pending: /*
 	mov		HV_MMU_UNMAP_ADDR_TRAP, %g6
 	brnz,a,pn	%o0, __hypervisor_tlb_xcall_error
 	 mov		%o0, %g5
-	brnz,pt		%g1, 1b
-	 nop
 	mov		%g2, %o0
 	mov		%g3, %o1
 	mov		%g4, %o2
@@ -697,6 +761,13 @@ hypervisor_patch_cachetlbops:
 	call		tlb_patch_one
 	 mov		10, %o2
 
+	sethi		%hi(__flush_tlb_page), %o0
+	or		%o0, %lo(__flush_tlb_page), %o0
+	sethi		%hi(__hypervisor_flush_tlb_page), %o1
+	or		%o1, %lo(__hypervisor_flush_tlb_page), %o1
+	call		tlb_patch_one
+	 mov		11, %o2
+
 	sethi		%hi(__flush_tlb_pending), %o0
 	or		%o0, %lo(__flush_tlb_pending), %o0
 	sethi		%hi(__hypervisor_flush_tlb_pending), %o1
@@ -728,12 +799,12 @@ hypervisor_patch_cachetlbops:
 	call		tlb_patch_one
 	 mov		21, %o2
 
-	sethi		%hi(xcall_flush_tlb_pending), %o0
-	or		%o0, %lo(xcall_flush_tlb_pending), %o0
-	sethi		%hi(__hypervisor_xcall_flush_tlb_pending), %o1
-	or		%o1, %lo(__hypervisor_xcall_flush_tlb_pending), %o1
+	sethi		%hi(xcall_flush_tlb_page), %o0
+	or		%o0, %lo(xcall_flush_tlb_page), %o0
+	sethi		%hi(__hypervisor_xcall_flush_tlb_page), %o1
+	or		%o1, %lo(__hypervisor_xcall_flush_tlb_page), %o1
 	call		tlb_patch_one
-	 mov		21, %o2
+	 mov		17, %o2
 
 	sethi		%hi(xcall_flush_tlb_kernel_range), %o0
 	or		%o0, %lo(xcall_flush_tlb_kernel_range), %o0
diff -druNp linux-libre-3.4-gnu1/arch/tile/include/asm/bitops.h linux-libre-3.4.53-gnu1/arch/tile/include/asm/bitops.h
--- linux-libre-3.4-gnu1/arch/tile/include/asm/bitops.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/tile/include/asm/bitops.h	2013-07-13 14:03:57.000000000 -0400
@@ -77,6 +77,11 @@ static inline int ffs(int x)
 	return __builtin_ffs(x);
 }
 
+static inline int fls64(__u64 w)
+{
+	return (sizeof(__u64) * 8) - __builtin_clzll(w);
+}
+
 /**
  * fls - find last set bit in word
  * @x: the word to search
@@ -90,12 +95,7 @@ static inline int ffs(int x)
  */
 static inline int fls(int x)
 {
-	return (sizeof(int) * 8) - __builtin_clz(x);
-}
-
-static inline int fls64(__u64 w)
-{
-	return (sizeof(__u64) * 8) - __builtin_clzll(w);
+	return fls64((unsigned int) x);
 }
 
 static inline unsigned int __arch_hweight32(unsigned int w)
diff -druNp linux-libre-3.4-gnu1/arch/tile/kernel/setup.c linux-libre-3.4.53-gnu1/arch/tile/kernel/setup.c
--- linux-libre-3.4-gnu1/arch/tile/kernel/setup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/tile/kernel/setup.c	2013-07-13 14:03:57.000000000 -0400
@@ -912,15 +912,8 @@ void __cpuinit setup_cpu(int boot)
 
 #ifdef CONFIG_BLK_DEV_INITRD
 
-/*
- * Note that the kernel can potentially support other compression
- * techniques than gz, though we don't do so by default.  If we ever
- * decide to do so we can either look for other filename extensions,
- * or just allow a file with this name to be compressed with an
- * arbitrary compressor (somewhat counterintuitively).
- */
 static int __initdata set_initramfs_file;
-static char __initdata initramfs_file[128] = "initramfs.cpio.gz";
+static char __initdata initramfs_file[128] = "initramfs";
 
 static int __init setup_initramfs_file(char *str)
 {
@@ -934,9 +927,9 @@ static int __init setup_initramfs_file(c
 early_param("initramfs_file", setup_initramfs_file);
 
 /*
- * We look for an "initramfs.cpio.gz" file in the hvfs.
- * If there is one, we allocate some memory for it and it will be
- * unpacked to the initramfs.
+ * We look for a file called "initramfs" in the hvfs.  If there is one, we
+ * allocate some memory for it and it will be unpacked to the initramfs.
+ * If it's compressed, the initd code will uncompress it first.
  */
 static void __init load_hv_initrd(void)
 {
@@ -946,10 +939,16 @@ static void __init load_hv_initrd(void)
 
 	fd = hv_fs_findfile((HV_VirtAddr) initramfs_file);
 	if (fd == HV_ENOENT) {
-		if (set_initramfs_file)
+		if (set_initramfs_file) {
 			pr_warning("No such hvfs initramfs file '%s'\n",
 				   initramfs_file);
-		return;
+			return;
+		} else {
+			/* Try old backwards-compatible name. */
+			fd = hv_fs_findfile((HV_VirtAddr)"initramfs.cpio.gz");
+			if (fd == HV_ENOENT)
+				return;
+		}
 	}
 	BUG_ON(fd < 0);
 	stat = hv_fs_fstat(fd);
diff -druNp linux-libre-3.4-gnu1/arch/tile/lib/exports.c linux-libre-3.4.53-gnu1/arch/tile/lib/exports.c
--- linux-libre-3.4-gnu1/arch/tile/lib/exports.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/tile/lib/exports.c	2013-07-13 14:03:57.000000000 -0400
@@ -90,4 +90,6 @@ uint64_t __ashrdi3(uint64_t, unsigned in
 EXPORT_SYMBOL(__ashrdi3);
 uint64_t __ashldi3(uint64_t, unsigned int);
 EXPORT_SYMBOL(__ashldi3);
+int __ffsdi2(uint64_t);
+EXPORT_SYMBOL(__ffsdi2);
 #endif
diff -druNp linux-libre-3.4-gnu1/arch/tile/Makefile linux-libre-3.4.53-gnu1/arch/tile/Makefile
--- linux-libre-3.4-gnu1/arch/tile/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/tile/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -26,6 +26,10 @@ $(error Set TILERA_ROOT or CROSS_COMPILE
   endif
 endif
 
+# The tile compiler may emit .eh_frame information for backtracing.
+# In kernel modules, this causes load failures due to unsupported relocations.
+KBUILD_CFLAGS   += -fno-asynchronous-unwind-tables
+
 ifneq ($(CONFIG_DEBUG_EXTRA_FLAGS),"")
 KBUILD_CFLAGS   += $(CONFIG_DEBUG_EXTRA_FLAGS)
 endif
diff -druNp linux-libre-3.4-gnu1/arch/um/include/asm/pgtable.h linux-libre-3.4.53-gnu1/arch/um/include/asm/pgtable.h
--- linux-libre-3.4-gnu1/arch/um/include/asm/pgtable.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/um/include/asm/pgtable.h	2013-07-13 14:03:57.000000000 -0400
@@ -273,6 +273,12 @@ static inline void set_pte(pte_t *pteptr
 }
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
+#define __HAVE_ARCH_PTE_SAME
+static inline int pte_same(pte_t pte_a, pte_t pte_b)
+{
+	return !((pte_val(pte_a) ^ pte_val(pte_b)) & ~_PAGE_NEWPAGE);
+}
+
 /*
  * Conversion functions: convert a page and protection to a page entry,
  * and a page entry and page directory to the page they refer to.
@@ -348,11 +354,11 @@ extern pte_t *virt_to_pte(struct mm_stru
 #define update_mmu_cache(vma,address,ptep) do ; while (0)
 
 /* Encode and de-code a swap entry */
-#define __swp_type(x)			(((x).val >> 4) & 0x3f)
+#define __swp_type(x)			(((x).val >> 5) & 0x1f)
 #define __swp_offset(x)			((x).val >> 11)
 
 #define __swp_entry(type, offset) \
-	((swp_entry_t) { ((type) << 4) | ((offset) << 11) })
+	((swp_entry_t) { ((type) << 5) | ((offset) << 11) })
 #define __pte_to_swp_entry(pte) \
 	((swp_entry_t) { pte_val(pte_mkuptodate(pte)) })
 #define __swp_entry_to_pte(x)		((pte_t) { (x).val })
diff -druNp linux-libre-3.4-gnu1/arch/x86/boot/compressed/eboot.c linux-libre-3.4.53-gnu1/arch/x86/boot/compressed/eboot.c
--- linux-libre-3.4-gnu1/arch/x86/boot/compressed/eboot.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/boot/compressed/eboot.c	2013-07-13 14:03:57.000000000 -0400
@@ -12,6 +12,8 @@
 #include <asm/setup.h>
 #include <asm/desc.h>
 
+#undef memcpy			/* Use memcpy from misc.c */
+
 #include "eboot.h"
 
 static efi_system_table_t *sys_table;
diff -druNp linux-libre-3.4-gnu1/arch/x86/boot/compressed/Makefile linux-libre-3.4.53-gnu1/arch/x86/boot/compressed/Makefile
--- linux-libre-3.4-gnu1/arch/x86/boot/compressed/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/boot/compressed/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -4,7 +4,7 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo
 
 KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
 KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
@@ -28,6 +28,8 @@ VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)
 	$(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
 	$(obj)/piggy.o
 
+$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
+
 ifeq ($(CONFIG_EFI_STUB), y)
 	VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
 endif
@@ -40,7 +42,7 @@ OBJCOPYFLAGS_vmlinux.bin :=  -R .comment
 $(obj)/vmlinux.bin: vmlinux FORCE
 	$(call if_changed,objcopy)
 
-targets += vmlinux.bin.all vmlinux.relocs
+targets += $(patsubst $(obj)/%,%,$(VMLINUX_OBJS)) vmlinux.bin.all vmlinux.relocs
 
 CMD_RELOCS = arch/x86/tools/relocs
 quiet_cmd_relocs = RELOCS  $@
diff -druNp linux-libre-3.4-gnu1/arch/x86/crypto/aesni-intel_asm.S linux-libre-3.4.53-gnu1/arch/x86/crypto/aesni-intel_asm.S
--- linux-libre-3.4-gnu1/arch/x86/crypto/aesni-intel_asm.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/crypto/aesni-intel_asm.S	2013-07-13 14:03:57.000000000 -0400
@@ -2460,10 +2460,12 @@ ENTRY(aesni_cbc_dec)
 	pxor IN3, STATE4
 	movaps IN4, IV
 #else
-	pxor (INP), STATE2
-	pxor 0x10(INP), STATE3
 	pxor IN1, STATE4
 	movaps IN2, IV
+	movups (INP), IN1
+	pxor IN1, STATE2
+	movups 0x10(INP), IN2
+	pxor IN2, STATE3
 #endif
 	movups STATE1, (OUTP)
 	movups STATE2, 0x10(OUTP)
diff -druNp linux-libre-3.4-gnu1/arch/x86/ia32/ia32entry.S linux-libre-3.4.53-gnu1/arch/x86/ia32/ia32entry.S
--- linux-libre-3.4-gnu1/arch/x86/ia32/ia32entry.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/ia32/ia32entry.S	2013-07-13 14:03:57.000000000 -0400
@@ -205,7 +205,7 @@ sysexit_from_sys_call:
 	testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
 	jnz ia32_ret_from_sys_call
 	TRACE_IRQS_ON
-	sti
+	ENABLE_INTERRUPTS(CLBR_NONE)
 	movl %eax,%esi		/* second arg, syscall return value */
 	cmpl $-MAX_ERRNO,%eax	/* is it an error ? */
 	jbe 1f
@@ -215,7 +215,7 @@ sysexit_from_sys_call:
 	call __audit_syscall_exit
 	movq RAX-ARGOFFSET(%rsp),%rax	/* reload syscall return value */
 	movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
-	cli
+	DISABLE_INTERRUPTS(CLBR_NONE)
 	TRACE_IRQS_OFF
 	testl %edi,TI_flags+THREAD_INFO(%rsp,RIP-ARGOFFSET)
 	jz \exit
diff -druNp linux-libre-3.4-gnu1/arch/x86/ia32/ia32_signal.c linux-libre-3.4.53-gnu1/arch/x86/ia32/ia32_signal.c
--- linux-libre-3.4-gnu1/arch/x86/ia32/ia32_signal.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/ia32/ia32_signal.c	2013-07-13 14:03:57.000000000 -0400
@@ -38,7 +38,7 @@
 int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
 {
 	int err = 0;
-	bool ia32 = is_ia32_task();
+	bool ia32 = test_thread_flag(TIF_IA32);
 
 	if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
 		return -EFAULT;
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/cpufeature.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/cpufeature.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/cpufeature.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/cpufeature.h	2013-07-13 14:03:57.000000000 -0400
@@ -176,7 +176,7 @@
 #define X86_FEATURE_XSAVEOPT	(7*32+ 4) /* Optimized Xsave */
 #define X86_FEATURE_PLN		(7*32+ 5) /* Intel Power Limit Notification */
 #define X86_FEATURE_PTS		(7*32+ 6) /* Intel Package Thermal Status */
-#define X86_FEATURE_DTS		(7*32+ 7) /* Digital Thermal Sensor */
+#define X86_FEATURE_DTHERM	(7*32+ 7) /* Digital Thermal Sensor */
 #define X86_FEATURE_HW_PSTATE	(7*32+ 8) /* AMD HW-PState */
 
 /* Virtualization flags: Linux defined, word 8 */
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/efi.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/efi.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/efi.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/efi.h	2013-07-13 14:03:57.000000000 -0400
@@ -94,10 +94,12 @@ extern void __iomem *efi_ioremap(unsigne
 #endif /* CONFIG_X86_32 */
 
 extern int add_efi_memmap;
+extern unsigned long x86_efi_facility;
 extern void efi_set_executable(efi_memory_desc_t *md, bool executable);
 extern int efi_memblock_x86_reserve_range(void);
 extern void efi_call_phys_prelog(void);
 extern void efi_call_phys_epilog(void);
+extern void efi_unmap_memmap(void);
 
 #ifndef CONFIG_EFI
 /*
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/fpu-internal.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/fpu-internal.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/fpu-internal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/fpu-internal.h	2013-07-13 14:03:57.000000000 -0400
@@ -334,14 +334,17 @@ static inline void __thread_fpu_begin(st
 typedef struct { int preload; } fpu_switch_t;
 
 /*
- * FIXME! We could do a totally lazy restore, but we need to
- * add a per-cpu "this was the task that last touched the FPU
- * on this CPU" variable, and the task needs to have a "I last
- * touched the FPU on this CPU" and check them.
+ * Must be run with preemption disabled: this clears the fpu_owner_task,
+ * on this CPU.
  *
- * We don't do that yet, so "fpu_lazy_restore()" always returns
- * false, but some day..
+ * This will disable any lazy FPU state restore of the current FPU state,
+ * but if the current thread owns the FPU, it will still be saved by.
  */
+static inline void __cpu_disable_lazy_restore(unsigned int cpu)
+{
+	per_cpu(fpu_owner_task, cpu) = NULL;
+}
+
 static inline int fpu_lazy_restore(struct task_struct *new, unsigned int cpu)
 {
 	return new == percpu_read_stable(fpu_owner_task) &&
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/kvm_host.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/kvm_host.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/kvm_host.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/kvm_host.h	2013-07-13 14:03:57.000000000 -0400
@@ -407,8 +407,8 @@ struct kvm_vcpu_arch {
 	gpa_t time;
 	struct pvclock_vcpu_time_info hv_clock;
 	unsigned int hw_tsc_khz;
-	unsigned int time_offset;
-	struct page *time_page;
+	struct gfn_to_hva_cache pv_time;
+	bool pv_time_enabled;
 
 	struct {
 		u64 msr_val;
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/mmzone_32.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/mmzone_32.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/mmzone_32.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/mmzone_32.h	2013-07-13 14:03:57.000000000 -0400
@@ -14,12 +14,6 @@ extern struct pglist_data *node_data[];
 
 #include <asm/numaq.h>
 
-extern void resume_map_numa_kva(pgd_t *pgd);
-
-#else /* !CONFIG_NUMA */
-
-static inline void resume_map_numa_kva(pgd_t *pgd) {}
-
 #endif /* CONFIG_NUMA */
 
 #ifdef CONFIG_DISCONTIGMEM
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/paravirt.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/paravirt.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/paravirt.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/paravirt.h	2013-07-13 14:03:57.000000000 -0400
@@ -741,7 +741,10 @@ static inline void arch_leave_lazy_mmu_m
 	PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
 }
 
-void arch_flush_lazy_mmu_mode(void);
+static inline void arch_flush_lazy_mmu_mode(void)
+{
+	PVOP_VCALL0(pv_mmu_ops.lazy_mode.flush);
+}
 
 static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
 				phys_addr_t phys, pgprot_t flags)
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/paravirt_types.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/paravirt_types.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/paravirt_types.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/paravirt_types.h	2013-07-13 14:03:57.000000000 -0400
@@ -91,6 +91,7 @@ struct pv_lazy_ops {
 	/* Set deferred update mode, used for batching operations. */
 	void (*enter)(void);
 	void (*leave)(void);
+	void (*flush)(void);
 };
 
 struct pv_time_ops {
@@ -680,6 +681,7 @@ void paravirt_end_context_switch(struct
 
 void paravirt_enter_lazy_mmu(void);
 void paravirt_leave_lazy_mmu(void);
+void paravirt_flush_lazy_mmu(void);
 
 void _paravirt_nop(void);
 u32 _paravirt_ident_32(u32);
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/pgtable-3level.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/pgtable-3level.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/pgtable-3level.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/pgtable-3level.h	2013-07-13 14:03:57.000000000 -0400
@@ -31,6 +31,60 @@ static inline void native_set_pte(pte_t
 	ptep->pte_low = pte.pte_low;
 }
 
+#define pmd_read_atomic pmd_read_atomic
+/*
+ * pte_offset_map_lock on 32bit PAE kernels was reading the pmd_t with
+ * a "*pmdp" dereference done by gcc. Problem is, in certain places
+ * where pte_offset_map_lock is called, concurrent page faults are
+ * allowed, if the mmap_sem is hold for reading. An example is mincore
+ * vs page faults vs MADV_DONTNEED. On the page fault side
+ * pmd_populate rightfully does a set_64bit, but if we're reading the
+ * pmd_t with a "*pmdp" on the mincore side, a SMP race can happen
+ * because gcc will not read the 64bit of the pmd atomically. To fix
+ * this all places running pmd_offset_map_lock() while holding the
+ * mmap_sem in read mode, shall read the pmdp pointer using this
+ * function to know if the pmd is null nor not, and in turn to know if
+ * they can run pmd_offset_map_lock or pmd_trans_huge or other pmd
+ * operations.
+ *
+ * Without THP if the mmap_sem is hold for reading, the pmd can only
+ * transition from null to not null while pmd_read_atomic runs. So
+ * we can always return atomic pmd values with this function.
+ *
+ * With THP if the mmap_sem is hold for reading, the pmd can become
+ * trans_huge or none or point to a pte (and in turn become "stable")
+ * at any time under pmd_read_atomic. We could read it really
+ * atomically here with a atomic64_read for the THP enabled case (and
+ * it would be a whole lot simpler), but to avoid using cmpxchg8b we
+ * only return an atomic pmdval if the low part of the pmdval is later
+ * found stable (i.e. pointing to a pte). And we're returning a none
+ * pmdval if the low part of the pmd is none. In some cases the high
+ * and low part of the pmdval returned may not be consistent if THP is
+ * enabled (the low part may point to previously mapped hugepage,
+ * while the high part may point to a more recently mapped hugepage),
+ * but pmd_none_or_trans_huge_or_clear_bad() only needs the low part
+ * of the pmd to be read atomically to decide if the pmd is unstable
+ * or not, with the only exception of when the low part of the pmd is
+ * zero in which case we return a none pmd.
+ */
+static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
+{
+	pmdval_t ret;
+	u32 *tmp = (u32 *)pmdp;
+
+	ret = (pmdval_t) (*tmp);
+	if (ret) {
+		/*
+		 * If the low part is null, we must not read the high part
+		 * or we can end up with a partial pmd.
+		 */
+		smp_rmb();
+		ret |= ((pmdval_t)*(tmp + 1)) << 32;
+	}
+
+	return (pmd_t) { ret };
+}
+
 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 {
 	set_64bit((unsigned long long *)(ptep), native_pte_val(pte));
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/pgtable.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/pgtable.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/pgtable.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/pgtable.h	2013-07-13 14:03:57.000000000 -0400
@@ -142,12 +142,16 @@ static inline unsigned long pmd_pfn(pmd_
 	return (pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT;
 }
 
+static inline unsigned long pud_pfn(pud_t pud)
+{
+	return (pud_val(pud) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
 #define pte_page(pte)	pfn_to_page(pte_pfn(pte))
 
 static inline int pmd_large(pmd_t pte)
 {
-	return (pmd_flags(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==
-		(_PAGE_PSE | _PAGE_PRESENT);
+	return pmd_flags(pte) & _PAGE_PSE;
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
@@ -415,7 +419,13 @@ static inline int pte_hidden(pte_t pte)
 
 static inline int pmd_present(pmd_t pmd)
 {
-	return pmd_flags(pmd) & _PAGE_PRESENT;
+	/*
+	 * Checking for _PAGE_PSE is needed too because
+	 * split_huge_page will temporarily clear the present bit (but
+	 * the _PAGE_PSE flag will remain set at all times while the
+	 * _PAGE_PRESENT bit is clear).
+	 */
+	return pmd_flags(pmd) & (_PAGE_PRESENT | _PAGE_PROTNONE | _PAGE_PSE);
 }
 
 static inline int pmd_none(pmd_t pmd)
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/ptrace.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/ptrace.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/ptrace.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/ptrace.h	2013-07-13 14:03:57.000000000 -0400
@@ -205,21 +205,14 @@ static inline bool user_64bit_mode(struc
 }
 #endif
 
-/*
- * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
- * when it traps.  The previous stack will be directly underneath the saved
- * registers, and 'sp/ss' won't even have been saved. Thus the '&regs->sp'.
- *
- * This is valid only for kernel mode traps.
- */
-static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
-{
 #ifdef CONFIG_X86_32
-	return (unsigned long)(&regs->sp);
+extern unsigned long kernel_stack_pointer(struct pt_regs *regs);
 #else
+static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
 	return regs->sp;
-#endif
 }
+#endif
 
 #define GET_IP(regs) ((regs)->ip)
 #define GET_FP(regs) ((regs)->bp)
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -125,6 +125,8 @@ typedef unsigned long sigset_t;
 extern void do_notify_resume(struct pt_regs *, void *, __u32);
 # endif /* __KERNEL__ */
 
+#define __ARCH_HAS_SA_RESTORER
+
 #ifdef __i386__
 # ifdef __KERNEL__
 struct old_sigaction {
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/syscall.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/syscall.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/syscall.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/syscall.h	2013-07-13 14:03:57.000000000 -0400
@@ -27,13 +27,13 @@ extern const unsigned long sys_call_tabl
  */
 static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
 {
-	return regs->orig_ax & __SYSCALL_MASK;
+	return regs->orig_ax;
 }
 
 static inline void syscall_rollback(struct task_struct *task,
 				    struct pt_regs *regs)
 {
-	regs->ax = regs->orig_ax & __SYSCALL_MASK;
+	regs->ax = regs->orig_ax;
 }
 
 static inline long syscall_get_error(struct task_struct *task,
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/uv/uv_bau.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/uv/uv_bau.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/uv/uv_bau.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/uv/uv_bau.h	2013-07-13 14:03:57.000000000 -0400
@@ -149,7 +149,6 @@
 /* 4 bits of software ack period */
 #define UV2_ACK_MASK			0x7UL
 #define UV2_ACK_UNITS_SHFT		3
-#define UV2_LEG_SHFT UV2H_LB_BAU_MISC_CONTROL_USE_LEGACY_DESCRIPTOR_FORMATS_SHFT
 #define UV2_EXT_SHFT UV2H_LB_BAU_MISC_CONTROL_ENABLE_EXTENDED_SB_STATUS_SHFT
 
 /*
diff -druNp linux-libre-3.4-gnu1/arch/x86/include/asm/xen/page.h linux-libre-3.4.53-gnu1/arch/x86/include/asm/xen/page.h
--- linux-libre-3.4-gnu1/arch/x86/include/asm/xen/page.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/include/asm/xen/page.h	2013-07-13 14:03:57.000000000 -0400
@@ -50,7 +50,8 @@ extern unsigned long set_phys_range_iden
 
 extern int m2p_add_override(unsigned long mfn, struct page *page,
 			    struct gnttab_map_grant_ref *kmap_op);
-extern int m2p_remove_override(struct page *page, bool clear_pte);
+extern int m2p_remove_override(struct page *page,
+				struct gnttab_map_grant_ref *kmap_op);
 extern struct page *m2p_find_override(unsigned long mfn);
 extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/Kconfig linux-libre-3.4.53-gnu1/arch/x86/Kconfig
--- linux-libre-3.4-gnu1/arch/x86/Kconfig	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/Kconfig	2013-07-13 14:03:57.000000000 -0400
@@ -1243,10 +1243,6 @@ config HAVE_ARCH_BOOTMEM
 	def_bool y
 	depends on X86_32 && NUMA
 
-config HAVE_ARCH_ALLOC_REMAP
-	def_bool y
-	depends on X86_32 && NUMA
-
 config ARCH_HAVE_MEMORY_PRESENT
 	def_bool y
 	depends on X86_32 && DISCONTIGMEM
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/acpi/boot.c linux-libre-3.4.53-gnu1/arch/x86/kernel/acpi/boot.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/acpi/boot.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/acpi/boot.c	2013-07-13 14:03:57.000000000 -0400
@@ -422,12 +422,14 @@ acpi_parse_int_src_ovr(struct acpi_subta
 		return 0;
 	}
 
-	if (intsrc->source_irq == 0 && intsrc->global_irq == 2) {
+	if (intsrc->source_irq == 0) {
 		if (acpi_skip_timer_override) {
-			printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
+			printk(PREFIX "BIOS IRQ0 override ignored.\n");
 			return 0;
 		}
-		if (acpi_fix_pin2_polarity && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) {
+
+		if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity
+			&& (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) {
 			intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK;
 			printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n");
 		}
@@ -1334,17 +1336,12 @@ static int __init dmi_disable_acpi(const
 }
 
 /*
- * Force ignoring BIOS IRQ0 pin2 override
+ * Force ignoring BIOS IRQ0 override
  */
 static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
 {
-	/*
-	 * The ati_ixp4x0_rev() early PCI quirk should have set
-	 * the acpi_skip_timer_override flag already:
-	 */
 	if (!acpi_skip_timer_override) {
-		WARN(1, KERN_ERR "ati_ixp4x0 quirk not complete.\n");
-		pr_notice("%s detected: Ignoring BIOS IRQ0 pin2 override\n",
+		pr_notice("%s detected: Ignoring BIOS IRQ0 override\n",
 			d->ident);
 		acpi_skip_timer_override = 1;
 	}
@@ -1438,7 +1435,7 @@ static struct dmi_system_id __initdata a
 	 * is enabled.  This input is incorrectly designated the
 	 * ISA IRQ 0 via an interrupt source override even though
 	 * it is wired to the output of the master 8259A and INTIN0
-	 * is not connected at all.  Force ignoring BIOS IRQ0 pin2
+	 * is not connected at all.  Force ignoring BIOS IRQ0
 	 * override in that cases.
 	 */
 	{
@@ -1473,6 +1470,14 @@ static struct dmi_system_id __initdata a
 		     DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
 		     },
 	 },
+	{
+	 .callback = dmi_ignore_irq0_timer_override,
+	 .ident = "FUJITSU SIEMENS",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
+		     },
+	 },
 	{}
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/alternative.c linux-libre-3.4.53-gnu1/arch/x86/kernel/alternative.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/alternative.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/alternative.c	2013-07-13 14:03:57.000000000 -0400
@@ -160,7 +160,7 @@ static const unsigned char * const k7_no
 #endif
 
 #ifdef P6_NOP1
-static const unsigned char  __initconst_or_module p6nops[] =
+static const unsigned char p6nops[] =
 {
 	P6_NOP1,
 	P6_NOP2,
@@ -219,7 +219,7 @@ void __init arch_init_ideal_nops(void)
 			ideal_nops = intel_nops;
 #endif
 		}
-
+		break;
 	default:
 #ifdef CONFIG_X86_64
 		ideal_nops = k8_nops;
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/apic/x2apic_phys.c linux-libre-3.4.53-gnu1/arch/x86/kernel/apic/x2apic_phys.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/apic/x2apic_phys.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/apic/x2apic_phys.c	2013-07-13 14:03:57.000000000 -0400
@@ -20,18 +20,19 @@ static int set_x2apic_phys_mode(char *ar
 }
 early_param("x2apic_phys", set_x2apic_phys_mode);
 
-static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static bool x2apic_fadt_phys(void)
 {
-	if (x2apic_phys)
-		return x2apic_enabled();
-	else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
-		(acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
-		x2apic_enabled()) {
+	if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
+		(acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL)) {
 		printk(KERN_DEBUG "System requires x2apic physical mode\n");
-		return 1;
+		return true;
 	}
-	else
-		return 0;
+	return false;
+}
+
+static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+{
+	return x2apic_enabled() && (x2apic_phys || x2apic_fadt_phys());
 }
 
 static void
@@ -114,7 +115,7 @@ static void init_x2apic_ldr(void)
 
 static int x2apic_phys_probe(void)
 {
-	if (x2apic_mode && x2apic_phys)
+	if (x2apic_mode && (x2apic_phys || x2apic_fadt_phys()))
 		return 1;
 
 	return apic == &apic_x2apic_phys;
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/amd.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/amd.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/amd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/amd.c	2013-07-13 14:03:57.000000000 -0400
@@ -598,6 +598,34 @@ static void __cpuinit init_amd(struct cp
 		}
 	}
 
+	/*
+	 * The way access filter has a performance penalty on some workloads.
+	 * Disable it on the affected CPUs.
+	 */
+	if ((c->x86 == 0x15) &&
+	    (c->x86_model >= 0x02) && (c->x86_model < 0x20)) {
+		u64 val;
+
+		if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) {
+			val |= 0x1E;
+			checking_wrmsrl(0xc0011021, val);
+		}
+	}
+
+	/*
+	 * The way access filter has a performance penalty on some workloads.
+	 * Disable it on the affected CPUs.
+	 */
+	if ((c->x86 == 0x15) &&
+	    (c->x86_model >= 0x02) && (c->x86_model < 0x20)) {
+		u64 val;
+
+		if (!rdmsrl_safe(0xc0011021, &val) && !(val & 0x1E)) {
+			val |= 0x1E;
+			checking_wrmsrl(0xc0011021, val);
+		}
+	}
+
 	cpu_detect_cache_sizes(c);
 
 	/* Multi core CPU? */
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce_amd.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce_amd.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce_amd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce_amd.c	2013-07-13 14:03:57.000000000 -0400
@@ -51,6 +51,7 @@ struct threshold_block {
 	unsigned int		cpu;
 	u32			address;
 	u16			interrupt_enable;
+	bool			interrupt_capable;
 	u16			threshold_limit;
 	struct kobject		kobj;
 	struct list_head	miscj;
@@ -83,6 +84,21 @@ struct thresh_restart {
 	u16			old_limit;
 };
 
+static bool lvt_interrupt_supported(unsigned int bank, u32 msr_high_bits)
+{
+	/*
+	 * bank 4 supports APIC LVT interrupts implicitly since forever.
+	 */
+	if (bank == 4)
+		return true;
+
+	/*
+	 * IntP: interrupt present; if this bit is set, the thresholding
+	 * bank can generate APIC LVT interrupts
+	 */
+	return msr_high_bits & BIT(28);
+}
+
 static int lvt_off_valid(struct threshold_block *b, int apic, u32 lo, u32 hi)
 {
 	int msr = (hi & MASK_LVTOFF_HI) >> 20;
@@ -104,8 +120,10 @@ static int lvt_off_valid(struct threshol
 	return 1;
 };
 
-/* must be called with correct cpu affinity */
-/* Called via smp_call_function_single() */
+/*
+ * Called via smp_call_function_single(), must be called with correct
+ * cpu affinity.
+ */
 static void threshold_restart_bank(void *_tr)
 {
 	struct thresh_restart *tr = _tr;
@@ -128,6 +146,12 @@ static void threshold_restart_bank(void
 		    (new_count & THRESHOLD_MAX);
 	}
 
+	/* clear IntType */
+	hi &= ~MASK_INT_TYPE_HI;
+
+	if (!tr->b->interrupt_capable)
+		goto done;
+
 	if (tr->set_lvt_off) {
 		if (lvt_off_valid(tr->b, tr->lvt_off, lo, hi)) {
 			/* set new lvt offset */
@@ -136,9 +160,10 @@ static void threshold_restart_bank(void
 		}
 	}
 
-	tr->b->interrupt_enable ?
-	    (hi = (hi & ~MASK_INT_TYPE_HI) | INT_TYPE_APIC) :
-	    (hi &= ~MASK_INT_TYPE_HI);
+	if (tr->b->interrupt_enable)
+		hi |= INT_TYPE_APIC;
+
+ done:
 
 	hi |= MASK_COUNT_EN_HI;
 	wrmsr(tr->b->address, lo, hi);
@@ -202,14 +227,17 @@ void mce_amd_feature_init(struct cpuinfo
 			if (shared_bank[bank] && c->cpu_core_id)
 				break;
 
-			offset = setup_APIC_mce(offset,
-						(high & MASK_LVTOFF_HI) >> 20);
-
 			memset(&b, 0, sizeof(b));
-			b.cpu		= cpu;
-			b.bank		= bank;
-			b.block		= block;
-			b.address	= address;
+			b.cpu			= cpu;
+			b.bank			= bank;
+			b.block			= block;
+			b.address		= address;
+			b.interrupt_capable	= lvt_interrupt_supported(bank, high);
+
+			if (b.interrupt_capable) {
+				int new = (high & MASK_LVTOFF_HI) >> 20;
+				offset  = setup_APIC_mce(offset, new);
+			}
 
 			mce_threshold_block_init(&b, offset);
 			mce_threshold_vector = amd_threshold_interrupt;
@@ -309,6 +337,9 @@ store_interrupt_enable(struct threshold_
 	struct thresh_restart tr;
 	unsigned long new;
 
+	if (!b->interrupt_capable)
+		return -EINVAL;
+
 	if (strict_strtoul(buf, 0, &new) < 0)
 		return -EINVAL;
 
@@ -467,6 +498,7 @@ static __cpuinit int allocate_threshold_
 	b->cpu			= cpu;
 	b->address		= address;
 	b->interrupt_enable	= 0;
+	b->interrupt_capable	= lvt_interrupt_supported(bank, high);
 	b->threshold_limit	= THRESHOLD_MAX;
 
 	INIT_LIST_HEAD(&b->miscj);
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce.c	2013-07-13 14:03:57.000000000 -0400
@@ -437,6 +437,14 @@ static inline void mce_gather_info(struc
 		if (m->mcgstatus & (MCG_STATUS_RIPV|MCG_STATUS_EIPV)) {
 			m->ip = regs->ip;
 			m->cs = regs->cs;
+
+			/*
+			 * When in VM86 mode make the cs look like ring 3
+			 * always. This is a lie, but it's better than passing
+			 * the additional vm86 bit around everywhere.
+			 */
+			if (v8086_mode(regs))
+				m->cs |= 3;
 		}
 		/* Use accurate RIP reporting if available. */
 		if (rip_msr)
@@ -1172,6 +1180,7 @@ void mce_notify_process(void)
 {
 	unsigned long pfn;
 	struct mce_info *mi = mce_find_info();
+	int flags = MF_ACTION_REQUIRED;
 
 	if (!mi)
 		mce_panic("Lost physical address for unconsumed uncorrectable error", NULL, NULL);
@@ -1186,8 +1195,9 @@ void mce_notify_process(void)
 	 * doomed. We still need to mark the page as poisoned and alert any
 	 * other users of the page.
 	 */
-	if (memory_failure(pfn, MCE_VECTOR, MF_ACTION_REQUIRED) < 0 ||
-			   mi->restartable == 0) {
+	if (!mi->restartable)
+		flags |= MF_MUST_KILL;
+	if (memory_failure(pfn, MCE_VECTOR, flags) < 0) {
 		pr_err("Memory error not recovered");
 		force_sig(SIGBUS, current);
 	}
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce-severity.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce-severity.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mcheck/mce-severity.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mcheck/mce-severity.c	2013-07-13 14:03:57.000000000 -0400
@@ -165,15 +165,19 @@ static struct severity {
 };
 
 /*
- * If the EIPV bit is set, it means the saved IP is the
- * instruction which caused the MCE.
+ * If mcgstatus indicated that ip/cs on the stack were
+ * no good, then "m->cs" will be zero and we will have
+ * to assume the worst case (IN_KERNEL) as we actually
+ * have no idea what we were executing when the machine
+ * check hit.
+ * If we do have a good "m->cs" (or a faked one in the
+ * case we were executing in VM86 mode) we can use it to
+ * distinguish an exception taken in user from from one
+ * taken in the kernel.
  */
 static int error_context(struct mce *m)
 {
-	if (m->mcgstatus & MCG_STATUS_EIPV)
-		return (m->ip && (m->cs & 3) == 3) ? IN_USER : IN_KERNEL;
-	/* Unknown, assume kernel */
-	return IN_KERNEL;
+	return ((m->cs & 3) == 3) ? IN_USER : IN_KERNEL;
 }
 
 int mce_severity(struct mce *m, int tolerant, char **msg)
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mshyperv.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mshyperv.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/mshyperv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/mshyperv.c	2013-07-13 14:03:57.000000000 -0400
@@ -68,7 +68,8 @@ static void __init ms_hyperv_init_platfo
 	printk(KERN_INFO "HyperV: features 0x%x, hints 0x%x\n",
 	       ms_hyperv.features, ms_hyperv.hints);
 
-	clocksource_register_hz(&hyperv_cs, NSEC_PER_SEC/100);
+	if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
+		clocksource_register_hz(&hyperv_cs, NSEC_PER_SEC/100);
 }
 
 const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_amd.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_amd.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_amd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_amd.c	2013-07-13 14:03:57.000000000 -0400
@@ -493,6 +493,7 @@ static __initconst const struct x86_pmu
  * 0x023	DE	PERF_CTL[2:0]
  * 0x02D	LS	PERF_CTL[3]
  * 0x02E	LS	PERF_CTL[3,0]
+ * 0x031	LS	PERF_CTL[2:0] (**)
  * 0x043	CU	PERF_CTL[2:0]
  * 0x045	CU	PERF_CTL[2:0]
  * 0x046	CU	PERF_CTL[2:0]
@@ -506,10 +507,12 @@ static __initconst const struct x86_pmu
  * 0x0DD	LS	PERF_CTL[5:0]
  * 0x0DE	LS	PERF_CTL[5:0]
  * 0x0DF	LS	PERF_CTL[5:0]
+ * 0x1C0	EX	PERF_CTL[5:3]
  * 0x1D6	EX	PERF_CTL[5:0]
  * 0x1D8	EX	PERF_CTL[5:0]
  *
- * (*) depending on the umask all FPU counters may be used
+ * (*)  depending on the umask all FPU counters may be used
+ * (**) only one unitmask enabled at a time
  */
 
 static struct event_constraint amd_f15_PMC0  = EVENT_CONSTRAINT(0, 0x01, 0);
@@ -559,6 +562,12 @@ amd_get_event_constraints_f15h(struct cp
 			return &amd_f15_PMC3;
 		case 0x02E:
 			return &amd_f15_PMC30;
+		case 0x031:
+			if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1)
+				return &amd_f15_PMC20;
+			return &emptyconstraint;
+		case 0x1C0:
+			return &amd_f15_PMC53;
 		default:
 			return &amd_f15_PMC50;
 		}
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel.c	2013-07-13 14:03:57.000000000 -0400
@@ -126,8 +126,14 @@ static struct event_constraint intel_gen
 };
 
 static struct extra_reg intel_snb_extra_regs[] __read_mostly = {
-	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0),
-	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
+	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0),
+	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1),
+	EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_snbep_extra_regs[] __read_mostly = {
+	INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0),
+	INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1),
 	EVENT_EXTRA_END
 };
 
@@ -1851,7 +1857,10 @@ __init int intel_pmu_init(void)
 
 		x86_pmu.event_constraints = intel_snb_event_constraints;
 		x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints;
-		x86_pmu.extra_regs = intel_snb_extra_regs;
+		if (boot_cpu_data.x86_model == 45)
+			x86_pmu.extra_regs = intel_snbep_extra_regs;
+		else
+			x86_pmu.extra_regs = intel_snb_extra_regs;
 		/* all extra regs are per-cpu when HT is on */
 		x86_pmu.er_flags |= ERF_HAS_RSP_1;
 		x86_pmu.er_flags |= ERF_NO_HT_SHARING;
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel_ds.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel_ds.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel_ds.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel_ds.c	2013-07-13 14:03:57.000000000 -0400
@@ -723,3 +723,13 @@ void intel_ds_init(void)
 		}
 	}
 }
+
+void perf_restore_debug_store(void)
+{
+	struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds);
+
+	if (!x86_pmu.bts && !x86_pmu.pebs)
+		return;
+
+	wrmsrl(MSR_IA32_DS_AREA, (unsigned long)ds);
+}
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel_lbr.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel_lbr.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/perf_event_intel_lbr.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/perf_event_intel_lbr.c	2013-07-13 14:03:57.000000000 -0400
@@ -310,7 +310,7 @@ void intel_pmu_lbr_read(void)
  * - in case there is no HW filter
  * - in case the HW filter has errata or limitations
  */
-static void intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
+static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
 {
 	u64 br_type = event->attr.branch_sample_type;
 	int mask = 0;
@@ -318,8 +318,11 @@ static void intel_pmu_setup_sw_lbr_filte
 	if (br_type & PERF_SAMPLE_BRANCH_USER)
 		mask |= X86_BR_USER;
 
-	if (br_type & PERF_SAMPLE_BRANCH_KERNEL)
+	if (br_type & PERF_SAMPLE_BRANCH_KERNEL) {
+		if (perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
+			return -EACCES;
 		mask |= X86_BR_KERNEL;
+	}
 
 	/* we ignore BRANCH_HV here */
 
@@ -339,6 +342,8 @@ static void intel_pmu_setup_sw_lbr_filte
 	 * be used by fixup code for some CPU
 	 */
 	event->hw.branch_reg.reg = mask;
+
+	return 0;
 }
 
 /*
@@ -386,7 +391,9 @@ int intel_pmu_setup_lbr_filter(struct pe
 	/*
 	 * setup SW LBR filter
 	 */
-	intel_pmu_setup_sw_lbr_filter(event);
+	ret = intel_pmu_setup_sw_lbr_filter(event);
+	if (ret)
+		return ret;
 
 	/*
 	 * setup HW LBR filter, if any
@@ -442,8 +449,18 @@ static int branch_type(unsigned long fro
 			return X86_BR_NONE;
 
 		addr = buf;
-	} else
-		addr = (void *)from;
+	} else {
+		/*
+		 * The LBR logs any address in the IP, even if the IP just
+		 * faulted. This means userspace can control the from address.
+		 * Ensure we don't blindy read any address by validating it is
+		 * a known text address.
+		 */
+		if (kernel_text_address(from))
+			addr = (void *)from;
+		else
+			return X86_BR_NONE;
+	}
 
 	/*
 	 * decoder needs to know the ABI especially
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/cpu/scattered.c linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/scattered.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/cpu/scattered.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/cpu/scattered.c	2013-07-13 14:03:57.000000000 -0400
@@ -31,7 +31,7 @@ void __cpuinit init_scattered_cpuid_feat
 	const struct cpuid_bit *cb;
 
 	static const struct cpuid_bit __cpuinitconst cpuid_bits[] = {
-		{ X86_FEATURE_DTS,		CR_EAX, 0, 0x00000006, 0 },
+		{ X86_FEATURE_DTHERM,		CR_EAX, 0, 0x00000006, 0 },
 		{ X86_FEATURE_IDA,		CR_EAX, 1, 0x00000006, 0 },
 		{ X86_FEATURE_ARAT,		CR_EAX, 2, 0x00000006, 0 },
 		{ X86_FEATURE_PLN,		CR_EAX, 4, 0x00000006, 0 },
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/e820.c linux-libre-3.4.53-gnu1/arch/x86/kernel/e820.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/e820.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/e820.c	2013-07-13 14:03:57.000000000 -0400
@@ -1076,6 +1076,9 @@ void __init memblock_x86_fill(void)
 		memblock_add(ei->addr, ei->size);
 	}
 
+	/* throw away partial pages */
+	memblock_trim_memory(PAGE_SIZE);
+
 	memblock_dump_all();
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/entry_32.S linux-libre-3.4.53-gnu1/arch/x86/kernel/entry_32.S
--- linux-libre-3.4-gnu1/arch/x86/kernel/entry_32.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/entry_32.S	2013-07-13 14:03:57.000000000 -0400
@@ -1025,7 +1025,7 @@ ENTRY(xen_sysenter_target)
 
 ENTRY(xen_hypervisor_callback)
 	CFI_STARTPROC
-	pushl_cfi $0
+	pushl_cfi $-1 /* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	TRACE_IRQS_OFF
 
@@ -1067,14 +1067,15 @@ ENTRY(xen_failsafe_callback)
 2:	mov 8(%esp),%es
 3:	mov 12(%esp),%fs
 4:	mov 16(%esp),%gs
+	/* EAX == 0 => Category 1 (Bad segment)
+	   EAX != 0 => Category 2 (Bad IRET) */
 	testl %eax,%eax
 	popl_cfi %eax
 	lea 16(%esp),%esp
 	CFI_ADJUST_CFA_OFFSET -16
 	jz 5f
-	addl $16,%esp
-	jmp iret_exc		# EAX != 0 => Category 2 (Bad IRET)
-5:	pushl_cfi $0		# EAX == 0 => Category 1 (Bad segment)
+	jmp iret_exc
+5:	pushl_cfi $-1 /* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	jmp ret_from_exception
 	CFI_ENDPROC
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/entry_64.S linux-libre-3.4.53-gnu1/arch/x86/kernel/entry_64.S
--- linux-libre-3.4-gnu1/arch/x86/kernel/entry_64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/entry_64.S	2013-07-13 14:03:57.000000000 -0400
@@ -1351,7 +1351,7 @@ ENTRY(xen_failsafe_callback)
 	CFI_RESTORE r11
 	addq $0x30,%rsp
 	CFI_ADJUST_CFA_OFFSET -0x30
-	pushq_cfi $0
+	pushq_cfi $-1 /* orig_ax = -1 => not a system call */
 	SAVE_ALL
 	jmp error_exit
 	CFI_ENDPROC
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/head.c linux-libre-3.4.53-gnu1/arch/x86/kernel/head.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/head.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/head.c	2013-07-13 14:03:57.000000000 -0400
@@ -5,8 +5,6 @@
 #include <asm/setup.h>
 #include <asm/bios_ebda.h>
 
-#define BIOS_LOWMEM_KILOBYTES 0x413
-
 /*
  * The BIOS places the EBDA/XBDA at the top of conventional
  * memory, and usually decreases the reported amount of
@@ -16,17 +14,30 @@
  * chipset: reserve a page before VGA to prevent PCI prefetch
  * into it (errata #56). Usually the page is reserved anyways,
  * unless you have no PS/2 mouse plugged in.
+ *
+ * This functions is deliberately very conservative.  Losing
+ * memory in the bottom megabyte is rarely a problem, as long
+ * as we have enough memory to install the trampoline.  Using
+ * memory that is in use by the BIOS or by some DMA device
+ * the BIOS didn't shut down *is* a big problem.
  */
+
+#define BIOS_LOWMEM_KILOBYTES	0x413
+#define LOWMEM_CAP		0x9f000U	/* Absolute maximum */
+#define INSANE_CUTOFF		0x20000U	/* Less than this = insane */
+
 void __init reserve_ebda_region(void)
 {
 	unsigned int lowmem, ebda_addr;
 
-	/* To determine the position of the EBDA and the */
-	/* end of conventional memory, we need to look at */
-	/* the BIOS data area. In a paravirtual environment */
-	/* that area is absent. We'll just have to assume */
-	/* that the paravirt case can handle memory setup */
-	/* correctly, without our help. */
+	/*
+	 * To determine the position of the EBDA and the
+	 * end of conventional memory, we need to look at
+	 * the BIOS data area. In a paravirtual environment
+	 * that area is absent. We'll just have to assume
+	 * that the paravirt case can handle memory setup
+	 * correctly, without our help.
+	 */
 	if (paravirt_enabled())
 		return;
 
@@ -37,19 +48,23 @@ void __init reserve_ebda_region(void)
 	/* start of EBDA area */
 	ebda_addr = get_bios_ebda();
 
-	/* Fixup: bios puts an EBDA in the top 64K segment */
-	/* of conventional memory, but does not adjust lowmem. */
-	if ((lowmem - ebda_addr) <= 0x10000)
-		lowmem = ebda_addr;
+	/*
+	 * Note: some old Dells seem to need 4k EBDA without
+	 * reporting so, so just consider the memory above 0x9f000
+	 * to be off limits (bugzilla 2990).
+	 */
 
-	/* Fixup: bios does not report an EBDA at all. */
-	/* Some old Dells seem to need 4k anyhow (bugzilla 2990) */
-	if ((ebda_addr == 0) && (lowmem >= 0x9f000))
-		lowmem = 0x9f000;
+	/* If the EBDA address is below 128K, assume it is bogus */
+	if (ebda_addr < INSANE_CUTOFF)
+		ebda_addr = LOWMEM_CAP;
 
-	/* Paranoia: should never happen, but... */
-	if ((lowmem == 0) || (lowmem >= 0x100000))
-		lowmem = 0x9f000;
+	/* If lowmem is less than 128K, assume it is bogus */
+	if (lowmem < INSANE_CUTOFF)
+		lowmem = LOWMEM_CAP;
+
+	/* Use the lower of the lowmem and EBDA markers as the cutoff */
+	lowmem = min(lowmem, ebda_addr);
+	lowmem = min(lowmem, LOWMEM_CAP); /* Absolute cap */
 
 	/* reserve all memory between lowmem and the 1MB mark */
 	memblock_reserve(lowmem, 0x100000 - lowmem);
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/hpet.c linux-libre-3.4.53-gnu1/arch/x86/kernel/hpet.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/hpet.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/hpet.c	2013-07-13 14:03:57.000000000 -0400
@@ -431,7 +431,7 @@ void hpet_msi_unmask(struct irq_data *da
 
 	/* unmask it */
 	cfg = hpet_readl(HPET_Tn_CFG(hdev->num));
-	cfg |= HPET_TN_FSB;
+	cfg |= HPET_TN_ENABLE | HPET_TN_FSB;
 	hpet_writel(cfg, HPET_Tn_CFG(hdev->num));
 }
 
@@ -442,7 +442,7 @@ void hpet_msi_mask(struct irq_data *data
 
 	/* mask it */
 	cfg = hpet_readl(HPET_Tn_CFG(hdev->num));
-	cfg &= ~HPET_TN_FSB;
+	cfg &= ~(HPET_TN_ENABLE | HPET_TN_FSB);
 	hpet_writel(cfg, HPET_Tn_CFG(hdev->num));
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/irq.c linux-libre-3.4.53-gnu1/arch/x86/kernel/irq.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -165,10 +165,6 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
 u64 arch_irq_stat(void)
 {
 	u64 sum = atomic_read(&irq_err_count);
-
-#ifdef CONFIG_X86_IO_APIC
-	sum += atomic_read(&irq_mis_count);
-#endif
 	return sum;
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/microcode_amd.c linux-libre-3.4.53-gnu1/arch/x86/kernel/microcode_amd.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/microcode_amd.c	2013-05-01 21:49:35.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/microcode_amd.c	2013-07-13 18:18:55.000000000 -0400
@@ -97,6 +97,7 @@ static unsigned int verify_ucode_size(in
 #define F1XH_MPB_MAX_SIZE 2048
 #define F14H_MPB_MAX_SIZE 1824
 #define F15H_MPB_MAX_SIZE 4096
+#define F16H_MPB_MAX_SIZE 3458
 
 	switch (c->x86) {
 	case 0x14:
@@ -105,6 +106,9 @@ static unsigned int verify_ucode_size(in
 	case 0x15:
 		max_size = F15H_MPB_MAX_SIZE;
 		break;
+	case 0x16:
+		max_size = F16H_MPB_MAX_SIZE;
+		break;
 	default:
 		max_size = F1XH_MPB_MAX_SIZE;
 		break;
@@ -143,11 +147,12 @@ static int get_matching_microcode(int cp
 				  unsigned int *current_size)
 {
 	struct microcode_header_amd *mc_hdr;
-	unsigned int actual_size;
+	unsigned int actual_size, patch_size;
 	u16 equiv_cpu_id;
 
 	/* size of the current patch we're staring at */
-	*current_size = *(u32 *)(ucode_ptr + 4) + SECTION_HDR_SIZE;
+	patch_size = *(u32 *)(ucode_ptr + 4);
+	*current_size = patch_size + SECTION_HDR_SIZE;
 
 	equiv_cpu_id = find_equiv_id();
 	if (!equiv_cpu_id)
@@ -174,7 +179,7 @@ static int get_matching_microcode(int cp
 	/*
 	 * now that the header looks sane, verify its size
 	 */
-	actual_size = verify_ucode_size(cpu, *current_size, leftover_size);
+	actual_size = verify_ucode_size(cpu, patch_size, leftover_size);
 	if (!actual_size)
 		return 0;
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/microcode_core.c linux-libre-3.4.53-gnu1/arch/x86/kernel/microcode_core.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/microcode_core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/microcode_core.c	2013-07-13 14:03:57.000000000 -0400
@@ -298,20 +298,31 @@ static ssize_t reload_store(struct devic
 			    const char *buf, size_t size)
 {
 	unsigned long val;
-	int cpu = dev->id;
-	int ret = 0;
-	char *end;
+	int cpu;
+	ssize_t ret = 0, tmp_ret;
 
-	val = simple_strtoul(buf, &end, 0);
-	if (end == buf)
+	/* allow reload only from the BSP */
+	if (boot_cpu_data.cpu_index != dev->id)
 		return -EINVAL;
 
-	if (val == 1) {
-		get_online_cpus();
-		if (cpu_online(cpu))
-			ret = reload_for_cpu(cpu);
-		put_online_cpus();
+	ret = kstrtoul(buf, 0, &val);
+	if (ret)
+		return ret;
+
+	if (val != 1)
+		return size;
+
+	get_online_cpus();
+	for_each_online_cpu(cpu) {
+		tmp_ret = reload_for_cpu(cpu);
+		if (tmp_ret != 0)
+			pr_warn("Error reloading microcode on CPU %d\n", cpu);
+
+		/* save retval of the first encountered reload error */
+		if (!ret)
+			ret = tmp_ret;
 	}
+	put_online_cpus();
 
 	if (!ret)
 		ret = size;
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/msr.c linux-libre-3.4.53-gnu1/arch/x86/kernel/msr.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/msr.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/msr.c	2013-07-13 14:03:57.000000000 -0400
@@ -174,6 +174,9 @@ static int msr_open(struct inode *inode,
 	unsigned int cpu;
 	struct cpuinfo_x86 *c;
 
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
 	cpu = iminor(file->f_path.dentry->d_inode);
 	if (cpu >= nr_cpu_ids || !cpu_online(cpu))
 		return -ENXIO;	/* No such CPU */
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/nmi.c linux-libre-3.4.53-gnu1/arch/x86/kernel/nmi.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/nmi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/nmi.c	2013-07-13 14:03:57.000000000 -0400
@@ -491,14 +491,16 @@ static inline void nmi_nesting_preproces
 	 */
 	if (unlikely(is_debug_stack(regs->sp))) {
 		debug_stack_set_zero();
-		__get_cpu_var(update_debug_stack) = 1;
+		this_cpu_write(update_debug_stack, 1);
 	}
 }
 
 static inline void nmi_nesting_postprocess(void)
 {
-	if (unlikely(__get_cpu_var(update_debug_stack)))
+	if (unlikely(this_cpu_read(update_debug_stack))) {
 		debug_stack_reset();
+		this_cpu_write(update_debug_stack, 0);
+	}
 }
 #endif
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/paravirt.c linux-libre-3.4.53-gnu1/arch/x86/kernel/paravirt.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/paravirt.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/paravirt.c	2013-07-13 14:03:57.000000000 -0400
@@ -263,6 +263,18 @@ void paravirt_leave_lazy_mmu(void)
 	leave_lazy(PARAVIRT_LAZY_MMU);
 }
 
+void paravirt_flush_lazy_mmu(void)
+{
+	preempt_disable();
+
+	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+		arch_leave_lazy_mmu_mode();
+		arch_enter_lazy_mmu_mode();
+	}
+
+	preempt_enable();
+}
+
 void paravirt_start_context_switch(struct task_struct *prev)
 {
 	BUG_ON(preemptible());
@@ -292,18 +304,6 @@ enum paravirt_lazy_mode paravirt_get_laz
 	return percpu_read(paravirt_lazy_mode);
 }
 
-void arch_flush_lazy_mmu_mode(void)
-{
-	preempt_disable();
-
-	if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
-		arch_leave_lazy_mmu_mode();
-		arch_enter_lazy_mmu_mode();
-	}
-
-	preempt_enable();
-}
-
 struct pv_info pv_info = {
 	.name = "bare hardware",
 	.paravirt_enabled = 0,
@@ -477,6 +477,7 @@ struct pv_mmu_ops pv_mmu_ops = {
 	.lazy_mode = {
 		.enter = paravirt_nop,
 		.leave = paravirt_nop,
+		.flush = paravirt_nop,
 	},
 
 	.set_fixmap = native_set_fixmap,
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/ptrace.c linux-libre-3.4.53-gnu1/arch/x86/kernel/ptrace.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/ptrace.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/ptrace.c	2013-07-13 14:03:57.000000000 -0400
@@ -21,6 +21,7 @@
 #include <linux/signal.h>
 #include <linux/perf_event.h>
 #include <linux/hw_breakpoint.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -165,6 +166,35 @@ static inline bool invalid_selector(u16
 
 #define FLAG_MASK		FLAG_MASK_32
 
+/*
+ * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
+ * when it traps.  The previous stack will be directly underneath the saved
+ * registers, and 'sp/ss' won't even have been saved. Thus the '&regs->sp'.
+ *
+ * Now, if the stack is empty, '&regs->sp' is out of range. In this
+ * case we try to take the previous stack. To always return a non-null
+ * stack pointer we fall back to regs as stack if no previous stack
+ * exists.
+ *
+ * This is valid only for kernel mode traps.
+ */
+unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
+	unsigned long context = (unsigned long)regs & ~(THREAD_SIZE - 1);
+	unsigned long sp = (unsigned long)&regs->sp;
+	struct thread_info *tinfo;
+
+	if (context == (sp & ~(THREAD_SIZE - 1)))
+		return sp;
+
+	tinfo = (struct thread_info *)context;
+	if (tinfo->previous_esp)
+		return tinfo->previous_esp;
+
+	return (unsigned long)regs;
+}
+EXPORT_SYMBOL_GPL(kernel_stack_pointer);
+
 static unsigned long *pt_regs_access(struct pt_regs *regs, unsigned long regno)
 {
 	BUILD_BUG_ON(offsetof(struct pt_regs, bx) != 0);
@@ -1211,12 +1241,6 @@ static long x32_arch_ptrace(struct task_
 					     0, sizeof(struct user_i387_struct),
 					     datap);
 
-		/* normal 64bit interface to access TLS data.
-		   Works just like arch_prctl, except that the arguments
-		   are reversed. */
-	case PTRACE_ARCH_PRCTL:
-		return do_arch_prctl(child, data, addr);
-
 	default:
 		return compat_ptrace_request(child, request, addr, data);
 	}
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/reboot.c linux-libre-3.4.53-gnu1/arch/x86/kernel/reboot.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/reboot.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/reboot.c	2013-07-13 14:03:57.000000000 -0400
@@ -471,6 +471,14 @@ static struct dmi_system_id __initdata p
 			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"),
 		},
 	},
+	{	/* Handle problems with rebooting on the Precision M6600. */
+		.callback = set_pci_reboot,
+		.ident = "Dell OptiPlex 990",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"),
+		},
+	},
 	{ }
 };
 
@@ -611,7 +619,7 @@ static void native_machine_emergency_res
 			break;
 
 		case BOOT_EFI:
-			if (efi_enabled)
+			if (efi_enabled(EFI_RUNTIME_SERVICES))
 				efi.reset_system(reboot_mode ?
 						 EFI_RESET_WARM :
 						 EFI_RESET_COLD,
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/relocate_kernel_64.S linux-libre-3.4.53-gnu1/arch/x86/kernel/relocate_kernel_64.S
--- linux-libre-3.4-gnu1/arch/x86/kernel/relocate_kernel_64.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/relocate_kernel_64.S	2013-07-13 14:03:57.000000000 -0400
@@ -160,7 +160,7 @@ identity_mapped:
 	xorq    %rbp, %rbp
 	xorq	%r8,  %r8
 	xorq	%r9,  %r9
-	xorq	%r10, %r9
+	xorq	%r10, %r10
 	xorq	%r11, %r11
 	xorq	%r12, %r12
 	xorq	%r13, %r13
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/setup.c linux-libre-3.4.53-gnu1/arch/x86/kernel/setup.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/setup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/setup.c	2013-07-13 14:03:57.000000000 -0400
@@ -620,6 +620,83 @@ static __init void reserve_ibft_region(v
 
 static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10;
 
+static bool __init snb_gfx_workaround_needed(void)
+{
+#ifdef CONFIG_PCI
+	int i;
+	u16 vendor, devid;
+	static const u16 snb_ids[] = {
+		0x0102,
+		0x0112,
+		0x0122,
+		0x0106,
+		0x0116,
+		0x0126,
+		0x010a,
+	};
+
+	/* Assume no if something weird is going on with PCI */
+	if (!early_pci_allowed())
+		return false;
+
+	vendor = read_pci_config_16(0, 2, 0, PCI_VENDOR_ID);
+	if (vendor != 0x8086)
+		return false;
+
+	devid = read_pci_config_16(0, 2, 0, PCI_DEVICE_ID);
+	for (i = 0; i < ARRAY_SIZE(snb_ids); i++)
+		if (devid == snb_ids[i])
+			return true;
+#endif
+
+	return false;
+}
+
+/*
+ * Sandy Bridge graphics has trouble with certain ranges, exclude
+ * them from allocation.
+ */
+static void __init trim_snb_memory(void)
+{
+	static const unsigned long bad_pages[] = {
+		0x20050000,
+		0x20110000,
+		0x20130000,
+		0x20138000,
+		0x40004000,
+	};
+	int i;
+
+	if (!snb_gfx_workaround_needed())
+		return;
+
+	printk(KERN_DEBUG "reserving inaccessible SNB gfx pages\n");
+
+	/*
+	 * Reserve all memory below the 1 MB mark that has not
+	 * already been reserved.
+	 */
+	memblock_reserve(0, 1<<20);
+
+	for (i = 0; i < ARRAY_SIZE(bad_pages); i++) {
+		if (memblock_reserve(bad_pages[i], PAGE_SIZE))
+			printk(KERN_WARNING "failed to reserve 0x%08lx\n",
+			       bad_pages[i]);
+	}
+}
+
+/*
+ * Here we put platform-specific memory range workarounds, i.e.
+ * memory known to be corrupt or otherwise in need to be reserved on
+ * specific platforms.
+ *
+ * If this gets used more widely it could use a real dispatch mechanism.
+ */
+static void __init trim_platform_memory_ranges(void)
+{
+	trim_snb_memory();
+}
+
 static void __init trim_bios_range(void)
 {
 	/*
@@ -640,6 +717,7 @@ static void __init trim_bios_range(void)
 	 * take them out.
 	 */
 	e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
+
 	sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
 }
 
@@ -740,15 +818,15 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_EFI
 	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
 		     "EL32", 4)) {
-		efi_enabled = 1;
-		efi_64bit = false;
+		set_bit(EFI_BOOT, &x86_efi_facility);
 	} else if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
 		     "EL64", 4)) {
-		efi_enabled = 1;
-		efi_64bit = true;
+		set_bit(EFI_BOOT, &x86_efi_facility);
+		set_bit(EFI_64BIT, &x86_efi_facility);
 	}
-	if (efi_enabled && efi_memblock_x86_reserve_range())
-		efi_enabled = 0;
+
+	if (efi_enabled(EFI_BOOT))
+		efi_memblock_x86_reserve_range();
 #endif
 
 	x86_init.oem.arch_setup();
@@ -821,7 +899,7 @@ void __init setup_arch(char **cmdline_p)
 
 	finish_e820_parsing();
 
-	if (efi_enabled)
+	if (efi_enabled(EFI_BOOT))
 		efi_init();
 
 	dmi_scan_machine();
@@ -904,7 +982,7 @@ void __init setup_arch(char **cmdline_p)
 	 * The EFI specification says that boot service code won't be called
 	 * after ExitBootServices(). This is, in fact, a lie.
 	 */
-	if (efi_enabled)
+	if (efi_enabled(EFI_MEMMAP))
 		efi_reserve_boot_services();
 
 	/* preallocate 4k for mptable mpc */
@@ -919,6 +997,8 @@ void __init setup_arch(char **cmdline_p)
 
 	setup_trampolines();
 
+	trim_platform_memory_ranges();
+
 	init_gbpages();
 
 	/* max_pfn_mapped is updated here */
@@ -927,8 +1007,22 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_X86_64
 	if (max_pfn > max_low_pfn) {
-		max_pfn_mapped = init_memory_mapping(1UL<<32,
-						     max_pfn<<PAGE_SHIFT);
+		int i;
+		unsigned long start, end;
+		unsigned long start_pfn, end_pfn;
+
+		for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn,
+							 NULL) {
+
+			end = PFN_PHYS(end_pfn);
+			if (end <= (1UL<<32))
+				continue;
+
+			start = PFN_PHYS(start_pfn);
+			max_pfn_mapped = init_memory_mapping(
+						max((1UL<<32), start), end);
+		}
+
 		/* can we preseve max_low_pfn ?*/
 		max_low_pfn = max_pfn;
 	}
@@ -1025,7 +1119,7 @@ void __init setup_arch(char **cmdline_p)
 
 #ifdef CONFIG_VT
 #if defined(CONFIG_VGA_CONSOLE)
-	if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
+	if (!efi_enabled(EFI_BOOT) || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
 		conswitchp = &vga_con;
 #elif defined(CONFIG_DUMMY_CONSOLE)
 	conswitchp = &dummy_con;
@@ -1040,6 +1134,18 @@ void __init setup_arch(char **cmdline_p)
 	mcheck_init();
 
 	arch_init_ideal_nops();
+
+#ifdef CONFIG_EFI
+	/* Once setup is done above, unmap the EFI memory map on
+	 * mismatched firmware/kernel archtectures since there is no
+	 * support for runtime services.
+	 */
+	if (efi_enabled(EFI_BOOT) &&
+	    IS_ENABLED(CONFIG_X86_64) != efi_enabled(EFI_64BIT)) {
+		pr_info("efi: Setup done, disabling due to 32/64-bit mismatch\n");
+		efi_unmap_memmap();
+	}
+#endif
 }
 
 #ifdef CONFIG_X86_32
diff -druNp linux-libre-3.4-gnu1/arch/x86/kernel/smpboot.c linux-libre-3.4.53-gnu1/arch/x86/kernel/smpboot.c
--- linux-libre-3.4-gnu1/arch/x86/kernel/smpboot.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kernel/smpboot.c	2013-07-13 14:03:57.000000000 -0400
@@ -66,6 +66,8 @@
 #include <asm/mwait.h>
 #include <asm/apic.h>
 #include <asm/io_apic.h>
+#include <asm/i387.h>
+#include <asm/fpu-internal.h>
 #include <asm/setup.h>
 #include <asm/uv/uv.h>
 #include <linux/mc146818rtc.h>
@@ -851,6 +853,9 @@ int __cpuinit native_cpu_up(unsigned int
 
 	per_cpu(cpu_state, cpu) = CPU_UP_PREPARE;
 
+	/* the FPU context is blank, nobody can own it */
+	__cpu_disable_lazy_restore(cpu);
+
 	err = do_boot_cpu(apicid, cpu);
 	if (err) {
 		pr_debug("do_boot_cpu failed %d\n", err);
diff -druNp linux-libre-3.4-gnu1/arch/x86/kvm/cpuid.h linux-libre-3.4.53-gnu1/arch/x86/kvm/cpuid.h
--- linux-libre-3.4-gnu1/arch/x86/kvm/cpuid.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kvm/cpuid.h	2013-07-13 14:03:57.000000000 -0400
@@ -23,6 +23,9 @@ static inline bool guest_cpuid_has_xsave
 {
 	struct kvm_cpuid_entry2 *best;
 
+	if (!static_cpu_has(X86_FEATURE_XSAVE))
+		return 0;
+
 	best = kvm_find_cpuid_entry(vcpu, 1, 0);
 	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/kvm/emulate.c linux-libre-3.4.53-gnu1/arch/x86/kvm/emulate.c
--- linux-libre-3.4-gnu1/arch/x86/kvm/emulate.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kvm/emulate.c	2013-07-13 14:03:57.000000000 -0400
@@ -3737,6 +3737,10 @@ static int decode_operand(struct x86_emu
 		break;
 	case OpMem8:
 		ctxt->memop.bytes = 1;
+		if (ctxt->memop.type == OP_REG) {
+			ctxt->memop.addr.reg = decode_register(ctxt, ctxt->modrm_rm, 1);
+			fetch_register_operand(&ctxt->memop);
+		}
 		goto mem_common;
 	case OpMem16:
 		ctxt->memop.bytes = 2;
diff -druNp linux-libre-3.4-gnu1/arch/x86/kvm/vmx.c linux-libre-3.4.53-gnu1/arch/x86/kvm/vmx.c
--- linux-libre-3.4-gnu1/arch/x86/kvm/vmx.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kvm/vmx.c	2013-07-13 14:03:57.000000000 -0400
@@ -4889,6 +4889,12 @@ static int handle_invalid_guest_state(st
 		if (err != EMULATE_DONE)
 			return 0;
 
+		if (vcpu->arch.halt_request) {
+			vcpu->arch.halt_request = 0;
+			ret = kvm_emulate_halt(vcpu);
+			goto out;
+		}
+
 		if (signal_pending(current))
 			goto out;
 		if (need_resched())
diff -druNp linux-libre-3.4-gnu1/arch/x86/kvm/x86.c linux-libre-3.4.53-gnu1/arch/x86/kvm/x86.c
--- linux-libre-3.4-gnu1/arch/x86/kvm/x86.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/kvm/x86.c	2013-07-13 14:03:57.000000000 -0400
@@ -555,8 +555,6 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu,
 	if (index != XCR_XFEATURE_ENABLED_MASK)
 		return 1;
 	xcr0 = xcr;
-	if (kvm_x86_ops->get_cpl(vcpu) != 0)
-		return 1;
 	if (!(xcr0 & XSTATE_FP))
 		return 1;
 	if ((xcr0 & XSTATE_YMM) && !(xcr0 & XSTATE_SSE))
@@ -570,7 +568,8 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu,
 
 int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
 {
-	if (__kvm_set_xcr(vcpu, index, xcr)) {
+	if (kvm_x86_ops->get_cpl(vcpu) != 0 ||
+	    __kvm_set_xcr(vcpu, index, xcr)) {
 		kvm_inject_gp(vcpu, 0);
 		return 1;
 	}
@@ -1114,7 +1113,6 @@ static int kvm_guest_time_update(struct
 {
 	unsigned long flags;
 	struct kvm_vcpu_arch *vcpu = &v->arch;
-	void *shared_kaddr;
 	unsigned long this_tsc_khz;
 	s64 kernel_ns, max_kernel_ns;
 	u64 tsc_timestamp;
@@ -1150,7 +1148,7 @@ static int kvm_guest_time_update(struct
 
 	local_irq_restore(flags);
 
-	if (!vcpu->time_page)
+	if (!vcpu->pv_time_enabled)
 		return 0;
 
 	/*
@@ -1208,14 +1206,9 @@ static int kvm_guest_time_update(struct
 	 */
 	vcpu->hv_clock.version += 2;
 
-	shared_kaddr = kmap_atomic(vcpu->time_page);
-
-	memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock,
-	       sizeof(vcpu->hv_clock));
-
-	kunmap_atomic(shared_kaddr);
-
-	mark_page_dirty(v->kvm, vcpu->time >> PAGE_SHIFT);
+	kvm_write_guest_cached(v->kvm, &vcpu->pv_time,
+				&vcpu->hv_clock,
+				sizeof(vcpu->hv_clock));
 	return 0;
 }
 
@@ -1494,7 +1487,8 @@ static int kvm_pv_enable_async_pf(struct
 		return 0;
 	}
 
-	if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa))
+	if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.apf.data, gpa,
+					sizeof(u32)))
 		return 1;
 
 	vcpu->arch.apf.send_user_only = !(data & KVM_ASYNC_PF_SEND_ALWAYS);
@@ -1504,10 +1498,7 @@ static int kvm_pv_enable_async_pf(struct
 
 static void kvmclock_reset(struct kvm_vcpu *vcpu)
 {
-	if (vcpu->arch.time_page) {
-		kvm_release_page_dirty(vcpu->arch.time_page);
-		vcpu->arch.time_page = NULL;
-	}
+	vcpu->arch.pv_time_enabled = false;
 }
 
 static void accumulate_steal_time(struct kvm_vcpu *vcpu)
@@ -1602,6 +1593,7 @@ int kvm_set_msr_common(struct kvm_vcpu *
 		break;
 	case MSR_KVM_SYSTEM_TIME_NEW:
 	case MSR_KVM_SYSTEM_TIME: {
+		u64 gpa_offset;
 		kvmclock_reset(vcpu);
 
 		vcpu->arch.time = data;
@@ -1611,16 +1603,14 @@ int kvm_set_msr_common(struct kvm_vcpu *
 		if (!(data & 1))
 			break;
 
-		/* ...but clean it before doing the actual write */
-		vcpu->arch.time_offset = data & ~(PAGE_MASK | 1);
-
-		vcpu->arch.time_page =
-				gfn_to_page(vcpu->kvm, data >> PAGE_SHIFT);
+		gpa_offset = data & ~(PAGE_MASK | 1);
 
-		if (is_error_page(vcpu->arch.time_page)) {
-			kvm_release_page_clean(vcpu->arch.time_page);
-			vcpu->arch.time_page = NULL;
-		}
+		if (kvm_gfn_to_hva_cache_init(vcpu->kvm,
+		     &vcpu->arch.pv_time, data & ~1ULL,
+		     sizeof(struct pvclock_vcpu_time_info)))
+			vcpu->arch.pv_time_enabled = false;
+		else
+			vcpu->arch.pv_time_enabled = true;
 		break;
 	}
 	case MSR_KVM_ASYNC_PF_EN:
@@ -1636,7 +1626,8 @@ int kvm_set_msr_common(struct kvm_vcpu *
 			return 1;
 
 		if (kvm_gfn_to_hva_cache_init(vcpu->kvm, &vcpu->arch.st.stime,
-							data & KVM_STEAL_VALID_BITS))
+						data & KVM_STEAL_VALID_BITS,
+						sizeof(struct kvm_steal_time)))
 			return 1;
 
 		vcpu->arch.st.msr_val = data;
@@ -5697,6 +5688,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct
 	int pending_vec, max_bits, idx;
 	struct desc_ptr dt;
 
+	if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+		return -EINVAL;
+
 	dt.size = sregs->idt.limit;
 	dt.address = sregs->idt.base;
 	kvm_x86_ops->set_idt(vcpu, &dt);
@@ -6164,6 +6158,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *
 	if (!zalloc_cpumask_var(&vcpu->arch.wbinvd_dirty_mask, GFP_KERNEL))
 		goto fail_free_mce_banks;
 
+	vcpu->arch.pv_time_enabled = false;
 	kvm_async_pf_hash_reset(vcpu);
 	kvm_pmu_init(vcpu);
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/lguest/boot.c linux-libre-3.4.53-gnu1/arch/x86/lguest/boot.c
--- linux-libre-3.4-gnu1/arch/x86/lguest/boot.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/lguest/boot.c	2013-07-13 14:03:57.000000000 -0400
@@ -1333,6 +1333,7 @@ __init void lguest_init(void)
 	pv_mmu_ops.read_cr3 = lguest_read_cr3;
 	pv_mmu_ops.lazy_mode.enter = paravirt_enter_lazy_mmu;
 	pv_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mmu_mode;
+	pv_mmu_ops.lazy_mode.flush = paravirt_flush_lazy_mmu;
 	pv_mmu_ops.pte_update = lguest_pte_update;
 	pv_mmu_ops.pte_update_defer = lguest_pte_update;
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/lib/usercopy_64.c linux-libre-3.4.53-gnu1/arch/x86/lib/usercopy_64.c
--- linux-libre-3.4-gnu1/arch/x86/lib/usercopy_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/lib/usercopy_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -120,10 +120,10 @@ copy_user_handle_tail(char *to, char *fr
 	char c;
 	unsigned zero_len;
 
-	for (; len; --len) {
+	for (; len; --len, to++) {
 		if (__get_user_nocheck(c, from++, sizeof(char)))
 			break;
-		if (__put_user_nocheck(c, to++, sizeof(char)))
+		if (__put_user_nocheck(c, to, sizeof(char)))
 			break;
 	}
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/Makefile linux-libre-3.4.53-gnu1/arch/x86/Makefile
--- linux-libre-3.4-gnu1/arch/x86/Makefile	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/Makefile	2013-07-13 14:03:57.000000000 -0400
@@ -85,7 +85,7 @@ endif
 ifdef CONFIG_X86_X32
 	x32_ld_ok := $(call try-run,\
 			/bin/echo -e '1: .quad 1b' | \
-			$(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" - && \
+			$(CC) $(KBUILD_AFLAGS) -c -x assembler -o "$$TMP" - && \
 			$(OBJCOPY) -O elf32-x86-64 "$$TMP" "$$TMPO" && \
 			$(LD) -m elf32_x86_64 "$$TMPO" -o "$$TMP",y,n)
         ifeq ($(x32_ld_ok),y)
@@ -206,6 +206,7 @@ archclean:
 	$(Q)rm -rf $(objtree)/arch/i386
 	$(Q)rm -rf $(objtree)/arch/x86_64
 	$(Q)$(MAKE) $(clean)=$(boot)
+	$(Q)$(MAKE) $(clean)=arch/x86/tools
 
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/fault.c linux-libre-3.4.53-gnu1/arch/x86/mm/fault.c
--- linux-libre-3.4-gnu1/arch/x86/mm/fault.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/fault.c	2013-07-13 14:03:57.000000000 -0400
@@ -377,10 +377,12 @@ static noinline __kprobes int vmalloc_fa
 	if (pgd_none(*pgd_ref))
 		return -1;
 
-	if (pgd_none(*pgd))
+	if (pgd_none(*pgd)) {
 		set_pgd(pgd, *pgd_ref);
-	else
+		arch_flush_lazy_mmu_mode();
+	} else {
 		BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref));
+	}
 
 	/*
 	 * Below here mismatches are bugs because these lower tables
@@ -747,13 +749,15 @@ __bad_area_nosemaphore(struct pt_regs *r
 				return;
 		}
 #endif
+		/* Kernel addresses are always protection faults: */
+		if (address >= TASK_SIZE)
+			error_code |= PF_PROT;
 
-		if (unlikely(show_unhandled_signals))
+		if (likely(show_unhandled_signals))
 			show_signal_msg(regs, error_code, address, tsk);
 
-		/* Kernel addresses are always protection faults: */
 		tsk->thread.cr2		= address;
-		tsk->thread.error_code	= error_code | (address >= TASK_SIZE);
+		tsk->thread.error_code	= error_code;
 		tsk->thread.trap_nr	= X86_TRAP_PF;
 
 		force_sig_info_fault(SIGSEGV, si_code, address, tsk, 0);
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/hugetlbpage.c linux-libre-3.4.53-gnu1/arch/x86/mm/hugetlbpage.c
--- linux-libre-3.4-gnu1/arch/x86/mm/hugetlbpage.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/hugetlbpage.c	2013-07-13 14:03:57.000000000 -0400
@@ -56,9 +56,16 @@ static int vma_shareable(struct vm_area_
 }
 
 /*
- * search for a shareable pmd page for hugetlb.
+ * Search for a shareable pmd page for hugetlb. In any case calls pmd_alloc()
+ * and returns the corresponding pte. While this is not necessary for the
+ * !shared pmd case because we can allocate the pmd later as well, it makes the
+ * code much cleaner. pmd allocation is essential for the shared case because
+ * pud has to be populated inside the same i_mmap_mutex section - otherwise
+ * racing tasks could either miss the sharing (see huge_pte_offset) or select a
+ * bad pmd for sharing.
  */
-static void huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
+static pte_t *
+huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 {
 	struct vm_area_struct *vma = find_vma(mm, addr);
 	struct address_space *mapping = vma->vm_file->f_mapping;
@@ -68,9 +75,10 @@ static void huge_pmd_share(struct mm_str
 	struct vm_area_struct *svma;
 	unsigned long saddr;
 	pte_t *spte = NULL;
+	pte_t *pte;
 
 	if (!vma_shareable(vma, addr))
-		return;
+		return (pte_t *)pmd_alloc(mm, pud, addr);
 
 	mutex_lock(&mapping->i_mmap_mutex);
 	vma_prio_tree_foreach(svma, &iter, &mapping->i_mmap, idx, idx) {
@@ -97,7 +105,9 @@ static void huge_pmd_share(struct mm_str
 		put_page(virt_to_page(spte));
 	spin_unlock(&mm->page_table_lock);
 out:
+	pte = (pte_t *)pmd_alloc(mm, pud, addr);
 	mutex_unlock(&mapping->i_mmap_mutex);
+	return pte;
 }
 
 /*
@@ -142,8 +152,9 @@ pte_t *huge_pte_alloc(struct mm_struct *
 		} else {
 			BUG_ON(sz != PMD_SIZE);
 			if (pud_none(*pud))
-				huge_pmd_share(mm, addr, pud);
-			pte = (pte_t *) pmd_alloc(mm, pud, addr);
+				pte = huge_pmd_share(mm, addr, pud);
+			else
+				pte = (pte_t *)pmd_alloc(mm, pud, addr);
 		}
 	}
 	BUG_ON(pte && !pte_none(*pte) && !pte_huge(*pte));
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/init_64.c linux-libre-3.4.53-gnu1/arch/x86/mm/init_64.c
--- linux-libre-3.4-gnu1/arch/x86/mm/init_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/init_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -821,6 +821,9 @@ int kern_addr_valid(unsigned long addr)
 	if (pud_none(*pud))
 		return 0;
 
+	if (pud_large(*pud))
+		return pfn_valid(pud_pfn(*pud));
+
 	pmd = pmd_offset(pud, addr);
 	if (pmd_none(*pmd))
 		return 0;
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/init.c linux-libre-3.4.53-gnu1/arch/x86/mm/init.c
--- linux-libre-3.4-gnu1/arch/x86/mm/init.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/init.c	2013-07-13 14:03:57.000000000 -0400
@@ -29,37 +29,56 @@ int direct_gbpages
 #endif
 ;
 
-static void __init find_early_table_space(unsigned long end, int use_pse,
-					  int use_gbpages)
+struct map_range {
+	unsigned long start;
+	unsigned long end;
+	unsigned page_size_mask;
+};
+
+/*
+ * First calculate space needed for kernel direct mapping page tables to cover
+ * mr[0].start to mr[nr_range - 1].end, while accounting for possible 2M and 1GB
+ * pages. Then find enough contiguous space for those page tables.
+ */
+static void __init find_early_table_space(struct map_range *mr, int nr_range)
 {
-	unsigned long puds, pmds, ptes, tables, start = 0, good_end = end;
+	int i;
+	unsigned long puds = 0, pmds = 0, ptes = 0, tables;
+	unsigned long start = 0, good_end;
+	unsigned long pgd_extra = 0;
 	phys_addr_t base;
 
-	puds = (end + PUD_SIZE - 1) >> PUD_SHIFT;
-	tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
-
-	if (use_gbpages) {
-		unsigned long extra;
+	for (i = 0; i < nr_range; i++) {
+		unsigned long range, extra;
 
-		extra = end - ((end>>PUD_SHIFT) << PUD_SHIFT);
-		pmds = (extra + PMD_SIZE - 1) >> PMD_SHIFT;
-	} else
-		pmds = (end + PMD_SIZE - 1) >> PMD_SHIFT;
+		if ((mr[i].end >> PGDIR_SHIFT) - (mr[i].start >> PGDIR_SHIFT))
+			pgd_extra++;
 
-	tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
+		range = mr[i].end - mr[i].start;
+		puds += (range + PUD_SIZE - 1) >> PUD_SHIFT;
 
-	if (use_pse) {
-		unsigned long extra;
+		if (mr[i].page_size_mask & (1 << PG_LEVEL_1G)) {
+			extra = range - ((range >> PUD_SHIFT) << PUD_SHIFT);
+			pmds += (extra + PMD_SIZE - 1) >> PMD_SHIFT;
+		} else {
+			pmds += (range + PMD_SIZE - 1) >> PMD_SHIFT;
+		}
 
-		extra = end - ((end>>PMD_SHIFT) << PMD_SHIFT);
+		if (mr[i].page_size_mask & (1 << PG_LEVEL_2M)) {
+			extra = range - ((range >> PMD_SHIFT) << PMD_SHIFT);
 #ifdef CONFIG_X86_32
-		extra += PMD_SIZE;
+			extra += PMD_SIZE;
 #endif
-		ptes = (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	} else
-		ptes = (end + PAGE_SIZE - 1) >> PAGE_SHIFT;
+			ptes += (extra + PAGE_SIZE - 1) >> PAGE_SHIFT;
+		} else {
+			ptes += (range + PAGE_SIZE - 1) >> PAGE_SHIFT;
+		}
+	}
 
+	tables = roundup(puds * sizeof(pud_t), PAGE_SIZE);
+	tables += roundup(pmds * sizeof(pmd_t), PAGE_SIZE);
 	tables += roundup(ptes * sizeof(pte_t), PAGE_SIZE);
+	tables += (pgd_extra * PAGE_SIZE);
 
 #ifdef CONFIG_X86_32
 	/* for fixmap */
@@ -75,8 +94,9 @@ static void __init find_early_table_spac
 	pgt_buf_end = pgt_buf_start;
 	pgt_buf_top = pgt_buf_start + (tables >> PAGE_SHIFT);
 
-	printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
-		end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT);
+ 	printk(KERN_DEBUG "kernel direct mapping tables up to %#lx @ [mem %#010lx-%#010lx]\n",
+		mr[nr_range - 1].end - 1, pgt_buf_start << PAGE_SHIFT,
+ 		(pgt_buf_top << PAGE_SHIFT) - 1);
 }
 
 void __init native_pagetable_reserve(u64 start, u64 end)
@@ -84,12 +104,6 @@ void __init native_pagetable_reserve(u64
 	memblock_reserve(start, end - start);
 }
 
-struct map_range {
-	unsigned long start;
-	unsigned long end;
-	unsigned page_size_mask;
-};
-
 #ifdef CONFIG_X86_32
 #define NR_RANGE_MR 3
 #else /* CONFIG_X86_64 */
@@ -261,7 +275,7 @@ unsigned long __init_refok init_memory_m
 	 * nodes are discovered.
 	 */
 	if (!after_bootmem)
-		find_early_table_space(end, use_pse, use_gbpages);
+		find_early_table_space(mr, nr_range);
 
 	for (i = 0; i < nr_range; i++)
 		ret = kernel_physical_mapping_init(mr[i].start, mr[i].end,
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/numa_32.c linux-libre-3.4.53-gnu1/arch/x86/mm/numa_32.c
--- linux-libre-3.4-gnu1/arch/x86/mm/numa_32.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/numa_32.c	2013-07-13 14:03:57.000000000 -0400
@@ -73,167 +73,6 @@ unsigned long node_memmap_size_bytes(int
 
 extern unsigned long highend_pfn, highstart_pfn;
 
-#define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE)
-
-static void *node_remap_start_vaddr[MAX_NUMNODES];
-void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
-
-/*
- * Remap memory allocator
- */
-static unsigned long node_remap_start_pfn[MAX_NUMNODES];
-static void *node_remap_end_vaddr[MAX_NUMNODES];
-static void *node_remap_alloc_vaddr[MAX_NUMNODES];
-
-/**
- * alloc_remap - Allocate remapped memory
- * @nid: NUMA node to allocate memory from
- * @size: The size of allocation
- *
- * Allocate @size bytes from the remap area of NUMA node @nid.  The
- * size of the remap area is predetermined by init_alloc_remap() and
- * only the callers considered there should call this function.  For
- * more info, please read the comment on top of init_alloc_remap().
- *
- * The caller must be ready to handle allocation failure from this
- * function and fall back to regular memory allocator in such cases.
- *
- * CONTEXT:
- * Single CPU early boot context.
- *
- * RETURNS:
- * Pointer to the allocated memory on success, %NULL on failure.
- */
-void *alloc_remap(int nid, unsigned long size)
-{
-	void *allocation = node_remap_alloc_vaddr[nid];
-
-	size = ALIGN(size, L1_CACHE_BYTES);
-
-	if (!allocation || (allocation + size) > node_remap_end_vaddr[nid])
-		return NULL;
-
-	node_remap_alloc_vaddr[nid] += size;
-	memset(allocation, 0, size);
-
-	return allocation;
-}
-
-#ifdef CONFIG_HIBERNATION
-/**
- * resume_map_numa_kva - add KVA mapping to the temporary page tables created
- *                       during resume from hibernation
- * @pgd_base - temporary resume page directory
- */
-void resume_map_numa_kva(pgd_t *pgd_base)
-{
-	int node;
-
-	for_each_online_node(node) {
-		unsigned long start_va, start_pfn, nr_pages, pfn;
-
-		start_va = (unsigned long)node_remap_start_vaddr[node];
-		start_pfn = node_remap_start_pfn[node];
-		nr_pages = (node_remap_end_vaddr[node] -
-			    node_remap_start_vaddr[node]) >> PAGE_SHIFT;
-
-		printk(KERN_DEBUG "%s: node %d\n", __func__, node);
-
-		for (pfn = 0; pfn < nr_pages; pfn += PTRS_PER_PTE) {
-			unsigned long vaddr = start_va + (pfn << PAGE_SHIFT);
-			pgd_t *pgd = pgd_base + pgd_index(vaddr);
-			pud_t *pud = pud_offset(pgd, vaddr);
-			pmd_t *pmd = pmd_offset(pud, vaddr);
-
-			set_pmd(pmd, pfn_pmd(start_pfn + pfn,
-						PAGE_KERNEL_LARGE_EXEC));
-
-			printk(KERN_DEBUG "%s: %08lx -> pfn %08lx\n",
-				__func__, vaddr, start_pfn + pfn);
-		}
-	}
-}
-#endif
-
-/**
- * init_alloc_remap - Initialize remap allocator for a NUMA node
- * @nid: NUMA node to initizlie remap allocator for
- *
- * NUMA nodes may end up without any lowmem.  As allocating pgdat and
- * memmap on a different node with lowmem is inefficient, a special
- * remap allocator is implemented which can be used by alloc_remap().
- *
- * For each node, the amount of memory which will be necessary for
- * pgdat and memmap is calculated and two memory areas of the size are
- * allocated - one in the node and the other in lowmem; then, the area
- * in the node is remapped to the lowmem area.
- *
- * As pgdat and memmap must be allocated in lowmem anyway, this
- * doesn't waste lowmem address space; however, the actual lowmem
- * which gets remapped over is wasted.  The amount shouldn't be
- * problematic on machines this feature will be used.
- *
- * Initialization failure isn't fatal.  alloc_remap() is used
- * opportunistically and the callers will fall back to other memory
- * allocation mechanisms on failure.
- */
-void __init init_alloc_remap(int nid, u64 start, u64 end)
-{
-	unsigned long start_pfn = start >> PAGE_SHIFT;
-	unsigned long end_pfn = end >> PAGE_SHIFT;
-	unsigned long size, pfn;
-	u64 node_pa, remap_pa;
-	void *remap_va;
-
-	/*
-	 * The acpi/srat node info can show hot-add memroy zones where
-	 * memory could be added but not currently present.
-	 */
-	printk(KERN_DEBUG "node %d pfn: [%lx - %lx]\n",
-	       nid, start_pfn, end_pfn);
-
-	/* calculate the necessary space aligned to large page size */
-	size = node_memmap_size_bytes(nid, start_pfn, end_pfn);
-	size += ALIGN(sizeof(pg_data_t), PAGE_SIZE);
-	size = ALIGN(size, LARGE_PAGE_BYTES);
-
-	/* allocate node memory and the lowmem remap area */
-	node_pa = memblock_find_in_range(start, end, size, LARGE_PAGE_BYTES);
-	if (!node_pa) {
-		pr_warning("remap_alloc: failed to allocate %lu bytes for node %d\n",
-			   size, nid);
-		return;
-	}
-	memblock_reserve(node_pa, size);
-
-	remap_pa = memblock_find_in_range(min_low_pfn << PAGE_SHIFT,
-					  max_low_pfn << PAGE_SHIFT,
-					  size, LARGE_PAGE_BYTES);
-	if (!remap_pa) {
-		pr_warning("remap_alloc: failed to allocate %lu bytes remap area for node %d\n",
-			   size, nid);
-		memblock_free(node_pa, size);
-		return;
-	}
-	memblock_reserve(remap_pa, size);
-	remap_va = phys_to_virt(remap_pa);
-
-	/* perform actual remap */
-	for (pfn = 0; pfn < size >> PAGE_SHIFT; pfn += PTRS_PER_PTE)
-		set_pmd_pfn((unsigned long)remap_va + (pfn << PAGE_SHIFT),
-			    (node_pa >> PAGE_SHIFT) + pfn,
-			    PAGE_KERNEL_LARGE);
-
-	/* initialize remap allocator parameters */
-	node_remap_start_pfn[nid] = node_pa >> PAGE_SHIFT;
-	node_remap_start_vaddr[nid] = remap_va;
-	node_remap_end_vaddr[nid] = remap_va + size;
-	node_remap_alloc_vaddr[nid] = remap_va;
-
-	printk(KERN_DEBUG "remap_alloc: node %d [%08llx-%08llx) -> [%p-%p)\n",
-	       nid, node_pa, node_pa + size, remap_va, remap_va + size);
-}
-
 void __init initmem_init(void)
 {
 	x86_numa_init();
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/numa.c linux-libre-3.4.53-gnu1/arch/x86/mm/numa.c
--- linux-libre-3.4-gnu1/arch/x86/mm/numa.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/numa.c	2013-07-13 14:03:57.000000000 -0400
@@ -193,7 +193,6 @@ int __init numa_add_memblk(int nid, u64
 static void __init setup_node_data(int nid, u64 start, u64 end)
 {
 	const size_t nd_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
-	bool remapped = false;
 	u64 nd_pa;
 	void *nd;
 	int tnid;
@@ -205,37 +204,28 @@ static void __init setup_node_data(int n
 	if (end && (end - start) < NODE_MIN_SIZE)
 		return;
 
-	/* initialize remap allocator before aligning to ZONE_ALIGN */
-	init_alloc_remap(nid, start, end);
-
 	start = roundup(start, ZONE_ALIGN);
 
 	printk(KERN_INFO "Initmem setup node %d %016Lx-%016Lx\n",
 	       nid, start, end);
 
 	/*
-	 * Allocate node data.  Try remap allocator first, node-local
-	 * memory and then any node.  Never allocate in DMA zone.
+	 * Allocate node data.  Try node-local memory and then any node.
+	 * Never allocate in DMA zone.
 	 */
-	nd = alloc_remap(nid, nd_size);
-	if (nd) {
-		nd_pa = __pa(nd);
-		remapped = true;
-	} else {
-		nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
-		if (!nd_pa) {
-			pr_err("Cannot find %zu bytes in node %d\n",
-			       nd_size, nid);
-			return;
-		}
-		nd = __va(nd_pa);
+	nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
+	if (!nd_pa) {
+		pr_err("Cannot find %zu bytes in node %d\n",
+		       nd_size, nid);
+		return;
 	}
+	nd = __va(nd_pa);
 
 	/* report and initialize */
-	printk(KERN_INFO "  NODE_DATA [%016Lx - %016Lx]%s\n",
-	       nd_pa, nd_pa + nd_size - 1, remapped ? " (remapped)" : "");
+	printk(KERN_INFO "  NODE_DATA [mem %#010Lx-%#010Lx]\n",
+	       nd_pa, nd_pa + nd_size - 1);
 	tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT);
-	if (!remapped && tnid != nid)
+	if (tnid != nid)
 		printk(KERN_INFO "    NODE_DATA(%d) on node %d\n", nid, tnid);
 
 	node_data[nid] = nd;
diff -druNp linux-libre-3.4-gnu1/arch/x86/mm/numa_internal.h linux-libre-3.4.53-gnu1/arch/x86/mm/numa_internal.h
--- linux-libre-3.4-gnu1/arch/x86/mm/numa_internal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/mm/numa_internal.h	2013-07-13 14:03:57.000000000 -0400
@@ -21,12 +21,6 @@ void __init numa_reset_distance(void);
 
 void __init x86_numa_init(void);
 
-#ifdef CONFIG_X86_64
-static inline void init_alloc_remap(int nid, u64 start, u64 end)	{ }
-#else
-void __init init_alloc_remap(int nid, u64 start, u64 end);
-#endif
-
 #ifdef CONFIG_NUMA_EMU
 void __init numa_emulation(struct numa_meminfo *numa_meminfo,
 			   int numa_dist_cnt);
diff -druNp linux-libre-3.4-gnu1/arch/x86/oprofile/nmi_int.c linux-libre-3.4.53-gnu1/arch/x86/oprofile/nmi_int.c
--- linux-libre-3.4-gnu1/arch/x86/oprofile/nmi_int.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/oprofile/nmi_int.c	2013-07-13 14:03:57.000000000 -0400
@@ -55,7 +55,7 @@ u64 op_x86_get_ctrl(struct op_x86_model_
 	val |= counter_config->extra;
 	event &= model->event_mask ? model->event_mask : 0xFF;
 	val |= event & 0xFF;
-	val |= (event & 0x0F00) << 24;
+	val |= (u64)(event & 0x0F00) << 24;
 
 	return val;
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/pci/fixup.c linux-libre-3.4.53-gnu1/arch/x86/pci/fixup.c
--- linux-libre-3.4-gnu1/arch/x86/pci/fixup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/pci/fixup.c	2013-07-13 14:03:57.000000000 -0400
@@ -519,3 +519,20 @@ static void sb600_disable_hpet_bar(struc
 	}
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, 0x4385, sb600_disable_hpet_bar);
+
+/*
+ * Twinhead H12Y needs us to block out a region otherwise we map devices
+ * there and any access kills the box.
+ *
+ *   See: https://bugzilla.kernel.org/show_bug.cgi?id=10231
+ *
+ * Match off the LPC and svid/sdid (older kernels lose the bridge subvendor)
+ */
+static void __devinit twinhead_reserve_killing_zone(struct pci_dev *dev)
+{
+        if (dev->subsystem_vendor == 0x14FF && dev->subsystem_device == 0xA003) {
+                pr_info("Reserving memory on Twinhead H12Y\n");
+                request_mem_region(0xFFB00000, 0x100000, "twinhead");
+        }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone);
diff -druNp linux-libre-3.4-gnu1/arch/x86/pci/xen.c linux-libre-3.4.53-gnu1/arch/x86/pci/xen.c
--- linux-libre-3.4-gnu1/arch/x86/pci/xen.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/pci/xen.c	2013-07-13 14:03:57.000000000 -0400
@@ -64,6 +64,10 @@ static int xen_register_pirq(u32 gsi, in
 	int shareable = 0;
 	char *name;
 
+	irq = xen_irq_from_gsi(gsi);
+	if (irq > 0)
+		return irq;
+
 	if (set_pirq)
 		pirq = gsi;
 
@@ -158,6 +162,9 @@ static int xen_setup_msi_irqs(struct pci
 	struct msi_desc *msidesc;
 	int *v;
 
+	if (type == PCI_CAP_ID_MSI && nvec > 1)
+		return 1;
+
 	v = kzalloc(sizeof(int) * max(1, nvec), GFP_KERNEL);
 	if (!v)
 		return -ENOMEM;
@@ -216,6 +223,9 @@ static int xen_hvm_setup_msi_irqs(struct
 	struct msi_desc *msidesc;
 	struct msi_msg msg;
 
+	if (type == PCI_CAP_ID_MSI && nvec > 1)
+		return 1;
+
 	list_for_each_entry(msidesc, &dev->msi_list, list) {
 		__read_msi_msg(msidesc, &msg);
 		pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) |
@@ -259,6 +269,9 @@ static int xen_initdom_setup_msi_irqs(st
 	int ret = 0;
 	struct msi_desc *msidesc;
 
+	if (type == PCI_CAP_ID_MSI && nvec > 1)
+		return 1;
+
 	list_for_each_entry(msidesc, &dev->msi_list, list) {
 		struct physdev_map_pirq map_irq;
 		domid_t domid;
diff -druNp linux-libre-3.4-gnu1/arch/x86/platform/efi/efi_64.c linux-libre-3.4.53-gnu1/arch/x86/platform/efi/efi_64.c
--- linux-libre-3.4-gnu1/arch/x86/platform/efi/efi_64.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/platform/efi/efi_64.c	2013-07-13 14:03:57.000000000 -0400
@@ -38,7 +38,7 @@
 #include <asm/cacheflush.h>
 #include <asm/fixmap.h>
 
-static pgd_t save_pgd __initdata;
+static pgd_t *save_pgd __initdata;
 static unsigned long efi_flags __initdata;
 
 static void __init early_code_mapping_set_exec(int executable)
@@ -61,12 +61,20 @@ static void __init early_code_mapping_se
 void __init efi_call_phys_prelog(void)
 {
 	unsigned long vaddress;
+	int pgd;
+	int n_pgds;
 
 	early_code_mapping_set_exec(1);
 	local_irq_save(efi_flags);
-	vaddress = (unsigned long)__va(0x0UL);
-	save_pgd = *pgd_offset_k(0x0UL);
-	set_pgd(pgd_offset_k(0x0UL), *pgd_offset_k(vaddress));
+
+	n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
+	save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
+
+	for (pgd = 0; pgd < n_pgds; pgd++) {
+		save_pgd[pgd] = *pgd_offset_k(pgd * PGDIR_SIZE);
+		vaddress = (unsigned long)__va(pgd * PGDIR_SIZE);
+		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), *pgd_offset_k(vaddress));
+	}
 	__flush_tlb_all();
 }
 
@@ -75,7 +83,11 @@ void __init efi_call_phys_epilog(void)
 	/*
 	 * After the lock is released, the original page table is restored.
 	 */
-	set_pgd(pgd_offset_k(0x0UL), save_pgd);
+	int pgd;
+	int n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT) , PGDIR_SIZE);
+	for (pgd = 0; pgd < n_pgds; pgd++)
+		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
+	kfree(save_pgd);
 	__flush_tlb_all();
 	local_irq_restore(efi_flags);
 	early_code_mapping_set_exec(0);
diff -druNp linux-libre-3.4-gnu1/arch/x86/platform/efi/efi.c linux-libre-3.4.53-gnu1/arch/x86/platform/efi/efi.c
--- linux-libre-3.4-gnu1/arch/x86/platform/efi/efi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/platform/efi/efi.c	2013-07-13 14:03:57.000000000 -0400
@@ -50,9 +50,6 @@
 
 #define EFI_DEBUG	1
 
-int efi_enabled;
-EXPORT_SYMBOL(efi_enabled);
-
 struct efi __read_mostly efi = {
 	.mps        = EFI_INVALID_TABLE_ADDR,
 	.acpi       = EFI_INVALID_TABLE_ADDR,
@@ -68,15 +65,29 @@ EXPORT_SYMBOL(efi);
 
 struct efi_memory_map memmap;
 
-bool efi_64bit;
-static bool efi_native;
-
 static struct efi efi_phys __initdata;
 static efi_system_table_t efi_systab __initdata;
 
+static inline bool efi_is_native(void)
+{
+	return IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT);
+}
+
+unsigned long x86_efi_facility;
+
+/*
+ * Returns 1 if 'facility' is enabled, 0 otherwise.
+ */
+int efi_enabled(int facility)
+{
+	return test_bit(facility, &x86_efi_facility) != 0;
+}
+EXPORT_SYMBOL(efi_enabled);
+
+static bool disable_runtime = false;
 static int __init setup_noefi(char *arg)
 {
-	efi_enabled = 0;
+	disable_runtime = true;
 	return 0;
 }
 early_param("noefi", setup_noefi);
@@ -419,10 +430,22 @@ void __init efi_reserve_boot_services(vo
 	}
 }
 
-static void __init efi_free_boot_services(void)
+void __init efi_unmap_memmap(void)
+{
+	clear_bit(EFI_MEMMAP, &x86_efi_facility);
+	if (memmap.map) {
+		early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
+		memmap.map = NULL;
+	}
+}
+
+void __init efi_free_boot_services(void)
 {
 	void *p;
 
+	if (!efi_is_native())
+		return;
+
 	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
 		efi_memory_desc_t *md = p;
 		unsigned long long start = md->phys_addr;
@@ -438,11 +461,13 @@ static void __init efi_free_boot_service
 
 		free_bootmem_late(start, size);
 	}
+
+	efi_unmap_memmap();
 }
 
 static int __init efi_systab_init(void *phys)
 {
-	if (efi_64bit) {
+	if (efi_enabled(EFI_64BIT)) {
 		efi_system_table_64_t *systab64;
 		u64 tmp = 0;
 
@@ -534,7 +559,7 @@ static int __init efi_config_init(u64 ta
 	void *config_tables, *tablep;
 	int i, sz;
 
-	if (efi_64bit)
+	if (efi_enabled(EFI_64BIT))
 		sz = sizeof(efi_config_table_64_t);
 	else
 		sz = sizeof(efi_config_table_32_t);
@@ -554,7 +579,7 @@ static int __init efi_config_init(u64 ta
 		efi_guid_t guid;
 		unsigned long table;
 
-		if (efi_64bit) {
+		if (efi_enabled(EFI_64BIT)) {
 			u64 table64;
 			guid = ((efi_config_table_64_t *)tablep)->guid;
 			table64 = ((efi_config_table_64_t *)tablep)->table;
@@ -666,22 +691,19 @@ void __init efi_init(void)
 	if (boot_params.efi_info.efi_systab_hi ||
 	    boot_params.efi_info.efi_memmap_hi) {
 		pr_info("Table located above 4GB, disabling EFI.\n");
-		efi_enabled = 0;
 		return;
 	}
 	efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab;
-	efi_native = !efi_64bit;
 #else
 	efi_phys.systab = (efi_system_table_t *)
 			  (boot_params.efi_info.efi_systab |
 			  ((__u64)boot_params.efi_info.efi_systab_hi<<32));
-	efi_native = efi_64bit;
 #endif
 
-	if (efi_systab_init(efi_phys.systab)) {
-		efi_enabled = 0;
+	if (efi_systab_init(efi_phys.systab))
 		return;
-	}
+
+	set_bit(EFI_SYSTEM_TABLES, &x86_efi_facility);
 
 	/*
 	 * Show what we know for posterity
@@ -699,29 +721,31 @@ void __init efi_init(void)
 		efi.systab->hdr.revision >> 16,
 		efi.systab->hdr.revision & 0xffff, vendor);
 
-	if (efi_config_init(efi.systab->tables, efi.systab->nr_tables)) {
-		efi_enabled = 0;
+	if (efi_config_init(efi.systab->tables, efi.systab->nr_tables))
 		return;
-	}
+
+	set_bit(EFI_CONFIG_TABLES, &x86_efi_facility);
 
 	/*
 	 * Note: We currently don't support runtime services on an EFI
 	 * that doesn't match the kernel 32/64-bit mode.
 	 */
 
-	if (!efi_native)
+	if (!efi_is_native())
 		pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
-	else if (efi_runtime_init()) {
-		efi_enabled = 0;
-		return;
+	else {
+		if (disable_runtime || efi_runtime_init())
+			return;
+		set_bit(EFI_RUNTIME_SERVICES, &x86_efi_facility);
 	}
 
-	if (efi_memmap_init()) {
-		efi_enabled = 0;
+	if (efi_memmap_init())
 		return;
-	}
+
+	set_bit(EFI_MEMMAP, &x86_efi_facility);
+
 #ifdef CONFIG_X86_32
-	if (efi_native) {
+	if (efi_is_native()) {
 		x86_platform.get_wallclock = efi_get_time;
 		x86_platform.set_wallclock = efi_set_rtc_mmss;
 	}
@@ -787,8 +811,10 @@ void __init efi_enter_virtual_mode(void)
 	 * non-native EFI
 	 */
 
-	if (!efi_native)
-		goto out;
+	if (!efi_is_native()) {
+		efi_unmap_memmap();
+		return;
+	}
 
 	/* Merge contiguous regions of the same type and attribute */
 	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
@@ -878,18 +904,12 @@ void __init efi_enter_virtual_mode(void)
 	}
 
 	/*
-	 * Thankfully, it does seem that no runtime services other than
-	 * SetVirtualAddressMap() will touch boot services code, so we can
-	 * get rid of it all at this point
-	 */
-	efi_free_boot_services();
-
-	/*
 	 * Now that EFI is in virtual mode, update the function
 	 * pointers in the runtime service table to the new virtual addresses.
 	 *
 	 * Call EFI services through wrapper functions.
 	 */
+	efi.runtime_version = efi_systab.hdr.revision;
 	efi.get_time = virt_efi_get_time;
 	efi.set_time = virt_efi_set_time;
 	efi.get_wakeup_time = virt_efi_get_wakeup_time;
@@ -906,9 +926,6 @@ void __init efi_enter_virtual_mode(void)
 	if (__supported_pte_mask & _PAGE_NX)
 		runtime_code_page_mkexec();
 
-out:
-	early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size);
-	memmap.map = NULL;
 	kfree(new_memmap);
 }
 
@@ -935,6 +952,9 @@ u64 efi_mem_attributes(unsigned long phy
 	efi_memory_desc_t *md;
 	void *p;
 
+	if (!efi_enabled(EFI_MEMMAP))
+		return 0;
+
 	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
 		md = p;
 		if ((md->phys_addr <= phys_addr) &&
diff -druNp linux-libre-3.4-gnu1/arch/x86/platform/uv/tlb_uv.c linux-libre-3.4.53-gnu1/arch/x86/platform/uv/tlb_uv.c
--- linux-libre-3.4-gnu1/arch/x86/platform/uv/tlb_uv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/platform/uv/tlb_uv.c	2013-07-13 14:03:57.000000000 -0400
@@ -1295,7 +1295,6 @@ static void __init enable_timeouts(void)
 		 */
 		mmr_image |= (1L << SOFTACK_MSHIFT);
 		if (is_uv2_hub()) {
-			mmr_image &= ~(1L << UV2_LEG_SHFT);
 			mmr_image |= (1L << UV2_EXT_SHFT);
 		}
 		write_mmr_misc_control(pnode, mmr_image);
diff -druNp linux-libre-3.4-gnu1/arch/x86/power/cpu.c linux-libre-3.4.53-gnu1/arch/x86/power/cpu.c
--- linux-libre-3.4-gnu1/arch/x86/power/cpu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/power/cpu.c	2013-07-13 14:03:57.000000000 -0400
@@ -11,6 +11,7 @@
 #include <linux/suspend.h>
 #include <linux/export.h>
 #include <linux/smp.h>
+#include <linux/perf_event.h>
 
 #include <asm/pgtable.h>
 #include <asm/proto.h>
@@ -227,6 +228,7 @@ static void __restore_processor_state(st
 	do_fpu_end();
 	x86_platform.restore_sched_clock_state();
 	mtrr_bp_restore();
+	perf_restore_debug_store();
 }
 
 /* Needed by apm.c */
diff -druNp linux-libre-3.4-gnu1/arch/x86/power/hibernate_32.c linux-libre-3.4.53-gnu1/arch/x86/power/hibernate_32.c
--- linux-libre-3.4-gnu1/arch/x86/power/hibernate_32.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/power/hibernate_32.c	2013-07-13 14:03:57.000000000 -0400
@@ -129,8 +129,6 @@ static int resume_physical_mapping_init(
 		}
 	}
 
-	resume_map_numa_kva(pgd_base);
-
 	return 0;
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/syscalls/syscall_64.tbl linux-libre-3.4.53-gnu1/arch/x86/syscalls/syscall_64.tbl
--- linux-libre-3.4-gnu1/arch/x86/syscalls/syscall_64.tbl	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/syscalls/syscall_64.tbl	2013-07-13 14:03:57.000000000 -0400
@@ -60,8 +60,8 @@
 51	common	getsockname		sys_getsockname
 52	common	getpeername		sys_getpeername
 53	common	socketpair		sys_socketpair
-54	common	setsockopt		sys_setsockopt
-55	common	getsockopt		sys_getsockopt
+54	64	setsockopt		sys_setsockopt
+55	64	getsockopt		sys_getsockopt
 56	common	clone			stub_clone
 57	common	fork			stub_fork
 58	common	vfork			stub_vfork
@@ -351,3 +351,5 @@
 538	x32	sendmmsg		compat_sys_sendmmsg
 539	x32	process_vm_readv	compat_sys_process_vm_readv
 540	x32	process_vm_writev	compat_sys_process_vm_writev
+541	x32	setsockopt		compat_sys_setsockopt
+542	x32	getsockopt		compat_sys_getsockopt
diff -druNp linux-libre-3.4-gnu1/arch/x86/tools/relocs.c linux-libre-3.4.53-gnu1/arch/x86/tools/relocs.c
--- linux-libre-3.4-gnu1/arch/x86/tools/relocs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/tools/relocs.c	2013-07-13 14:03:57.000000000 -0400
@@ -60,6 +60,18 @@ static const char * const sym_regex_kern
 	"__x86_cpu_dev_(start|end)|"
 	"(__parainstructions|__alt_instructions)(|_end)|"
 	"(__iommu_table|__apicdrivers|__smp_locks)(|_end)|"
+	"__(start|end)_pci_.*|"
+	"__(start|end)_builtin_fw|"
+	"__(start|stop)___ksymtab(|_gpl|_unused|_unused_gpl|_gpl_future)|"
+	"__(start|stop)___kcrctab(|_gpl|_unused|_unused_gpl|_gpl_future)|"
+	"__(start|stop)___param|"
+	"__(start|stop)___modver|"
+	"__(start|stop)___bug_table|"
+	"__tracedata_(start|end)|"
+	"__(start|stop)_notes|"
+	"__end_rodata|"
+	"__initramfs_start|"
+	"(jiffies|jiffies_64)|"
 	"_end)$"
 };
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/um/sys_call_table_32.c linux-libre-3.4.53-gnu1/arch/x86/um/sys_call_table_32.c
--- linux-libre-3.4-gnu1/arch/x86/um/sys_call_table_32.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/um/sys_call_table_32.c	2013-07-13 14:03:57.000000000 -0400
@@ -39,9 +39,9 @@
 #undef __SYSCALL_I386
 #define __SYSCALL_I386(nr, sym, compat) [ nr ] = sym,
 
-typedef void (*sys_call_ptr_t)(void);
+typedef asmlinkage void (*sys_call_ptr_t)(void);
 
-extern void sys_ni_syscall(void);
+extern asmlinkage void sys_ni_syscall(void);
 
 const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
 	/*
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/enlighten.c linux-libre-3.4.53-gnu1/arch/x86/xen/enlighten.c
--- linux-libre-3.4-gnu1/arch/x86/xen/enlighten.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/enlighten.c	2013-07-13 14:03:57.000000000 -0400
@@ -64,6 +64,7 @@
 #include <asm/hypervisor.h>
 #include <asm/mwait.h>
 #include <asm/pci_x86.h>
+#include <asm/pat.h>
 
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
@@ -138,6 +139,21 @@ static void xen_vcpu_setup(int cpu)
 
 	BUG_ON(HYPERVISOR_shared_info == &xen_dummy_shared_info);
 
+	/*
+	 * This path is called twice on PVHVM - first during bootup via
+	 * smp_init -> xen_hvm_cpu_notify, and then if the VCPU is being
+	 * hotplugged: cpu_up -> xen_hvm_cpu_notify.
+	 * As we can only do the VCPUOP_register_vcpu_info once lets
+	 * not over-write its result.
+	 *
+	 * For PV it is called during restore (xen_vcpu_restore) and bootup
+	 * (xen_setup_vcpu_info_placement). The hotplug mechanism does not
+	 * use this function.
+	 */
+	if (xen_hvm_domain()) {
+		if (per_cpu(xen_vcpu, cpu) == &per_cpu(xen_vcpu_info, cpu))
+			return;
+	}
 	if (cpu < MAX_VIRT_CPUS)
 		per_cpu(xen_vcpu,cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu];
 
@@ -207,6 +223,9 @@ static void __init xen_banner(void)
 	       xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : "");
 }
 
+#define CPUID_THERM_POWER_LEAF 6
+#define APERFMPERF_PRESENT 0
+
 static __read_mostly unsigned int cpuid_leaf1_edx_mask = ~0;
 static __read_mostly unsigned int cpuid_leaf1_ecx_mask = ~0;
 
@@ -240,6 +259,11 @@ static void xen_cpuid(unsigned int *ax,
 		*dx = cpuid_leaf5_edx_val;
 		return;
 
+	case CPUID_THERM_POWER_LEAF:
+		/* Disabling APERFMPERF for kernel usage */
+		maskecx = ~(1 << APERFMPERF_PRESENT);
+		break;
+
 	case 0xb:
 		/* Suppress extended topology stuff */
 		maskebx = 0;
@@ -934,7 +958,16 @@ static void xen_write_cr4(unsigned long
 
 	native_write_cr4(cr4);
 }
-
+#ifdef CONFIG_X86_64
+static inline unsigned long xen_read_cr8(void)
+{
+	return 0;
+}
+static inline void xen_write_cr8(unsigned long val)
+{
+	BUG_ON(val);
+}
+#endif
 static int xen_write_msr_safe(unsigned int msr, unsigned low, unsigned high)
 {
 	int ret;
@@ -1103,13 +1136,23 @@ static const struct pv_cpu_ops xen_cpu_o
 	.read_cr4_safe = native_read_cr4_safe,
 	.write_cr4 = xen_write_cr4,
 
+#ifdef CONFIG_X86_64
+	.read_cr8 = xen_read_cr8,
+	.write_cr8 = xen_write_cr8,
+#endif
+
 	.wbinvd = native_wbinvd,
 
 	.read_msr = native_read_msr_safe,
+	.rdmsr_regs = native_rdmsr_safe_regs,
 	.write_msr = xen_write_msr_safe,
+	.wrmsr_regs = native_wrmsr_safe_regs,
+
 	.read_tsc = native_read_tsc,
 	.read_pmc = native_read_pmc,
 
+	.read_tscp = native_read_tscp,
+
 	.iret = xen_iret,
 	.irq_enable_sysexit = xen_sysexit,
 #ifdef CONFIG_X86_64
@@ -1328,7 +1371,14 @@ asmlinkage void __init xen_start_kernel(
 	 */
 	acpi_numa = -1;
 #endif
-
+#ifdef CONFIG_X86_PAT
+	/*
+	 * For right now disable the PAT. We should remove this once
+	 * git commit 8eaffa67b43e99ae581622c5133e20b0f48bcef1
+	 * (xen/pat: Disable PAT support for now) is reverted.
+	 */
+	pat_enabled = 0;
+#endif
 	pgd = (pgd_t *)xen_start_info->pt_base;
 
 	/* Don't do the full vcpu_info placement stuff until we have a
@@ -1480,8 +1530,11 @@ static int __cpuinit xen_hvm_cpu_notify(
 	switch (action) {
 	case CPU_UP_PREPARE:
 		xen_vcpu_setup(cpu);
-		if (xen_have_vector_callback)
+		if (xen_have_vector_callback) {
 			xen_init_lock_cpu(cpu);
+			if (xen_feature(XENFEAT_hvm_safe_pvclock))
+				xen_setup_timer(cpu);
+		}
 		break;
 	default:
 		break;
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/mmu.c linux-libre-3.4.53-gnu1/arch/x86/xen/mmu.c
--- linux-libre-3.4-gnu1/arch/x86/xen/mmu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/mmu.c	2013-07-13 14:03:57.000000000 -0400
@@ -1203,6 +1203,25 @@ unsigned long xen_read_cr2_direct(void)
 	return this_cpu_read(xen_vcpu_info.arch.cr2);
 }
 
+void xen_flush_tlb_all(void)
+{
+	struct mmuext_op *op;
+	struct multicall_space mcs;
+
+	trace_xen_mmu_flush_tlb_all(0);
+
+	preempt_disable();
+
+	mcs = xen_mc_entry(sizeof(*op));
+
+	op = mcs.args;
+	op->cmd = MMUEXT_TLB_FLUSH_ALL;
+	MULTI_mmuext_op(mcs.mc, op, 1, NULL, DOMID_SELF);
+
+	xen_mc_issue(PARAVIRT_LAZY_MMU);
+
+	preempt_enable();
+}
 static void xen_flush_tlb(void)
 {
 	struct mmuext_op *op;
@@ -2057,6 +2076,7 @@ static const struct pv_mmu_ops xen_mmu_o
 	.lazy_mode = {
 		.enter = paravirt_enter_lazy_mmu,
 		.leave = xen_leave_lazy_mmu,
+		.flush = paravirt_flush_lazy_mmu,
 	},
 
 	.set_fixmap = xen_set_fixmap,
@@ -2364,7 +2384,7 @@ int xen_remap_domain_mfn_range(struct vm
 	err = 0;
 out:
 
-	flush_tlb_all();
+	xen_flush_tlb_all();
 
 	return err;
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/p2m.c linux-libre-3.4.53-gnu1/arch/x86/xen/p2m.c
--- linux-libre-3.4-gnu1/arch/x86/xen/p2m.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/p2m.c	2013-07-13 14:03:57.000000000 -0400
@@ -686,6 +686,7 @@ int m2p_add_override(unsigned long mfn,
 	unsigned long uninitialized_var(address);
 	unsigned level;
 	pte_t *ptep = NULL;
+	int ret = 0;
 
 	pfn = page_to_pfn(page);
 	if (!PageHighMem(page)) {
@@ -713,18 +714,34 @@ int m2p_add_override(unsigned long mfn,
 
 			xen_mc_issue(PARAVIRT_LAZY_MMU);
 		}
-		/* let's use dev_bus_addr to record the old mfn instead */
-		kmap_op->dev_bus_addr = page->index;
-		page->index = (unsigned long) kmap_op;
 	}
 	spin_lock_irqsave(&m2p_override_lock, flags);
 	list_add(&page->lru,  &m2p_overrides[mfn_hash(mfn)]);
 	spin_unlock_irqrestore(&m2p_override_lock, flags);
 
+	/* p2m(m2p(mfn)) == mfn: the mfn is already present somewhere in
+	 * this domain. Set the FOREIGN_FRAME_BIT in the p2m for the other
+	 * pfn so that the following mfn_to_pfn(mfn) calls will return the
+	 * pfn from the m2p_override (the backend pfn) instead.
+	 * We need to do this because the pages shared by the frontend
+	 * (xen-blkfront) can be already locked (lock_page, called by
+	 * do_read_cache_page); when the userspace backend tries to use them
+	 * with direct_IO, mfn_to_pfn returns the pfn of the frontend, so
+	 * do_blockdev_direct_IO is going to try to lock the same pages
+	 * again resulting in a deadlock.
+	 * As a side effect get_user_pages_fast might not be safe on the
+	 * frontend pages while they are being shared with the backend,
+	 * because mfn_to_pfn (that ends up being called by GUPF) will
+	 * return the backend pfn rather than the frontend pfn. */
+	ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
+	if (ret == 0 && get_phys_to_machine(pfn) == mfn)
+		set_phys_to_machine(pfn, FOREIGN_FRAME(mfn));
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(m2p_add_override);
-int m2p_remove_override(struct page *page, bool clear_pte)
+int m2p_remove_override(struct page *page,
+		struct gnttab_map_grant_ref *kmap_op)
 {
 	unsigned long flags;
 	unsigned long mfn;
@@ -732,6 +749,7 @@ int m2p_remove_override(struct page *pag
 	unsigned long uninitialized_var(address);
 	unsigned level;
 	pte_t *ptep = NULL;
+	int ret = 0;
 
 	pfn = page_to_pfn(page);
 	mfn = get_phys_to_machine(pfn);
@@ -753,10 +771,8 @@ int m2p_remove_override(struct page *pag
 	WARN_ON(!PagePrivate(page));
 	ClearPagePrivate(page);
 
-	if (clear_pte) {
-		struct gnttab_map_grant_ref *map_op =
-			(struct gnttab_map_grant_ref *) page->index;
-		set_phys_to_machine(pfn, map_op->dev_bus_addr);
+	set_phys_to_machine(pfn, page->index);
+	if (kmap_op != NULL) {
 		if (!PageHighMem(page)) {
 			struct multicall_space mcs;
 			struct gnttab_unmap_grant_ref *unmap_op;
@@ -768,13 +784,13 @@ int m2p_remove_override(struct page *pag
 			 * issued. In this case handle is going to -1 because
 			 * it hasn't been modified yet.
 			 */
-			if (map_op->handle == -1)
+			if (kmap_op->handle == -1)
 				xen_mc_flush();
 			/*
-			 * Now if map_op->handle is negative it means that the
+			 * Now if kmap_op->handle is negative it means that the
 			 * hypercall actually returned an error.
 			 */
-			if (map_op->handle == GNTST_general_error) {
+			if (kmap_op->handle == GNTST_general_error) {
 				printk(KERN_WARNING "m2p_remove_override: "
 						"pfn %lx mfn %lx, failed to modify kernel mappings",
 						pfn, mfn);
@@ -784,8 +800,8 @@ int m2p_remove_override(struct page *pag
 			mcs = xen_mc_entry(
 					sizeof(struct gnttab_unmap_grant_ref));
 			unmap_op = mcs.args;
-			unmap_op->host_addr = map_op->host_addr;
-			unmap_op->handle = map_op->handle;
+			unmap_op->host_addr = kmap_op->host_addr;
+			unmap_op->handle = kmap_op->handle;
 			unmap_op->dev_bus_addr = 0;
 
 			MULTI_grant_table_op(mcs.mc,
@@ -796,10 +812,25 @@ int m2p_remove_override(struct page *pag
 			set_pte_at(&init_mm, address, ptep,
 					pfn_pte(pfn, PAGE_KERNEL));
 			__flush_tlb_single(address);
-			map_op->host_addr = 0;
+			kmap_op->host_addr = 0;
 		}
-	} else
-		set_phys_to_machine(pfn, page->index);
+	}
+
+	/* p2m(m2p(mfn)) == FOREIGN_FRAME(mfn): the mfn is already present
+	 * somewhere in this domain, even before being added to the
+	 * m2p_override (see comment above in m2p_add_override).
+	 * If there are no other entries in the m2p_override corresponding
+	 * to this mfn, then remove the FOREIGN_FRAME_BIT from the p2m for
+	 * the original pfn (the one shared by the frontend): the backend
+	 * cannot do any IO on this page anymore because it has been
+	 * unshared. Removing the FOREIGN_FRAME_BIT from the p2m entry of
+	 * the original pfn causes mfn_to_pfn(mfn) to return the frontend
+	 * pfn again. */
+	mfn &= ~FOREIGN_FRAME_BIT;
+	ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
+	if (ret == 0 && get_phys_to_machine(pfn) == FOREIGN_FRAME(mfn) &&
+			m2p_find_override(mfn) == NULL)
+		set_phys_to_machine(pfn, mfn);
 
 	return 0;
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/setup.c linux-libre-3.4.53-gnu1/arch/x86/xen/setup.c
--- linux-libre-3.4-gnu1/arch/x86/xen/setup.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/setup.c	2013-07-13 14:03:57.000000000 -0400
@@ -17,6 +17,7 @@
 #include <asm/e820.h>
 #include <asm/setup.h>
 #include <asm/acpi.h>
+#include <asm/numa.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
 
@@ -79,9 +80,16 @@ static void __init xen_add_extra_mem(u64
 	memblock_reserve(start, size);
 
 	xen_max_p2m_pfn = PFN_DOWN(start + size);
+	for (pfn = PFN_DOWN(start); pfn < xen_max_p2m_pfn; pfn++) {
+		unsigned long mfn = pfn_to_mfn(pfn);
+
+		if (WARN(mfn == pfn, "Trying to over-write 1-1 mapping (pfn: %lx)\n", pfn))
+			continue;
+		WARN(mfn != INVALID_P2M_ENTRY, "Trying to remove %lx which has %lx mfn!\n",
+			pfn, mfn);
 
-	for (pfn = PFN_DOWN(start); pfn <= xen_max_p2m_pfn; pfn++)
 		__set_phys_to_machine(pfn, INVALID_P2M_ENTRY);
+	}
 }
 
 static unsigned long __init xen_release_chunk(unsigned long start,
@@ -424,4 +432,7 @@ void __init xen_arch_setup(void)
 	disable_cpufreq();
 	WARN_ON(set_pm_idle_to_default());
 	fiddle_vdso();
+#ifdef CONFIG_NUMA
+	numa_off = 1;
+#endif
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/spinlock.c linux-libre-3.4.53-gnu1/arch/x86/xen/spinlock.c
--- linux-libre-3.4-gnu1/arch/x86/xen/spinlock.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/spinlock.c	2013-07-13 14:03:57.000000000 -0400
@@ -328,7 +328,6 @@ static noinline void xen_spin_unlock_slo
 		if (per_cpu(lock_spinners, cpu) == xl) {
 			ADD_STATS(released_slow_kicked, 1);
 			xen_send_IPI_one(cpu, XEN_SPIN_UNLOCK_VECTOR);
-			break;
 		}
 	}
 }
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/time.c linux-libre-3.4.53-gnu1/arch/x86/xen/time.c
--- linux-libre-3.4-gnu1/arch/x86/xen/time.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/time.c	2013-07-13 14:03:57.000000000 -0400
@@ -497,7 +497,11 @@ static void xen_hvm_setup_cpu_clockevent
 {
 	int cpu = smp_processor_id();
 	xen_setup_runstate_info(cpu);
-	xen_setup_timer(cpu);
+	/*
+	 * xen_setup_timer(cpu) - snprintf is bad in atomic context. Hence
+	 * doing it xen_hvm_cpu_notify (which gets called by smp_init during
+	 * early bootup and also during CPU hotplug events).
+	 */
 	xen_setup_cpu_clockevents();
 }
 
diff -druNp linux-libre-3.4-gnu1/arch/x86/xen/xen-asm_32.S linux-libre-3.4.53-gnu1/arch/x86/xen/xen-asm_32.S
--- linux-libre-3.4-gnu1/arch/x86/xen/xen-asm_32.S	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/x86/xen/xen-asm_32.S	2013-07-13 14:03:57.000000000 -0400
@@ -88,11 +88,11 @@ ENTRY(xen_iret)
 	 */
 #ifdef CONFIG_SMP
 	GET_THREAD_INFO(%eax)
-	movl TI_cpu(%eax), %eax
-	movl __per_cpu_offset(,%eax,4), %eax
-	mov xen_vcpu(%eax), %eax
+	movl %ss:TI_cpu(%eax), %eax
+	movl %ss:__per_cpu_offset(,%eax,4), %eax
+	mov %ss:xen_vcpu(%eax), %eax
 #else
-	movl xen_vcpu, %eax
+	movl %ss:xen_vcpu, %eax
 #endif
 
 	/* check IF state we're restoring */
@@ -105,11 +105,11 @@ ENTRY(xen_iret)
 	 * resuming the code, so we don't have to be worried about
 	 * being preempted to another CPU.
 	 */
-	setz XEN_vcpu_info_mask(%eax)
+	setz %ss:XEN_vcpu_info_mask(%eax)
 xen_iret_start_crit:
 
 	/* check for unmasked and pending */
-	cmpw $0x0001, XEN_vcpu_info_pending(%eax)
+	cmpw $0x0001, %ss:XEN_vcpu_info_pending(%eax)
 
 	/*
 	 * If there's something pending, mask events again so we can
@@ -117,7 +117,7 @@ xen_iret_start_crit:
 	 * touch XEN_vcpu_info_mask.
 	 */
 	jne 1f
-	movb $1, XEN_vcpu_info_mask(%eax)
+	movb $1, %ss:XEN_vcpu_info_mask(%eax)
 
 1:	popl %eax
 
diff -druNp linux-libre-3.4-gnu1/arch/xtensa/include/asm/signal.h linux-libre-3.4.53-gnu1/arch/xtensa/include/asm/signal.h
--- linux-libre-3.4-gnu1/arch/xtensa/include/asm/signal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/xtensa/include/asm/signal.h	2013-07-13 14:03:57.000000000 -0400
@@ -133,6 +133,7 @@ struct sigaction {
 	void (*sa_restorer)(void);
 	sigset_t sa_mask;		/* mask last for extensibility */
 };
+#define __ARCH_HAS_SA_RESTORER
 
 struct k_sigaction {
 	struct sigaction sa;
diff -druNp linux-libre-3.4-gnu1/arch/xtensa/kernel/process.c linux-libre-3.4.53-gnu1/arch/xtensa/kernel/process.c
--- linux-libre-3.4-gnu1/arch/xtensa/kernel/process.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/arch/xtensa/kernel/process.c	2013-07-13 14:03:57.000000000 -0400
@@ -31,6 +31,7 @@
 #include <linux/mqueue.h>
 #include <linux/fs.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
@@ -110,8 +111,10 @@ void cpu_idle(void)
 
 	/* endless idle loop with no priority at all */
 	while (1) {
+		rcu_idle_enter();
 		while (!need_resched())
 			platform_idle();
+		rcu_idle_exit();
 		schedule_preempt_disabled();
 	}
 }
diff -druNp linux-libre-3.4-gnu1/block/blk-core.c linux-libre-3.4.53-gnu1/block/blk-core.c
--- linux-libre-3.4-gnu1/block/blk-core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/block/blk-core.c	2013-07-13 14:03:57.000000000 -0400
@@ -601,7 +601,7 @@ blk_init_allocated_queue(struct request_
 	q->request_fn		= rfn;
 	q->prep_rq_fn		= NULL;
 	q->unprep_rq_fn		= NULL;
-	q->queue_flags		= QUEUE_FLAG_DEFAULT;
+	q->queue_flags		|= QUEUE_FLAG_DEFAULT;
 
 	/* Override internal queue lock with supplied lock pointer */
 	if (lock)
diff -druNp linux-libre-3.4-gnu1/block/blk-sysfs.c linux-libre-3.4.53-gnu1/block/blk-sysfs.c
--- linux-libre-3.4-gnu1/block/blk-sysfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/block/blk-sysfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -200,6 +200,8 @@ queue_store_##name(struct request_queue
 	unsigned long val;						\
 	ssize_t ret;							\
 	ret = queue_var_store(&val, page, count);			\
+	if (ret < 0)							\
+		 return ret;						\
 	if (neg)							\
 		val = !val;						\
 									\
diff -druNp linux-libre-3.4-gnu1/block/genhd.c linux-libre-3.4.53-gnu1/block/genhd.c
--- linux-libre-3.4-gnu1/block/genhd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/block/genhd.c	2013-07-13 14:03:57.000000000 -0400
@@ -25,7 +25,7 @@ static DEFINE_MUTEX(block_class_lock);
 struct kobject *block_depr;
 
 /* for extended dynamic devt allocation, currently only one major is used */
-#define MAX_EXT_DEVT		(1 << MINORBITS)
+#define NR_EXT_DEVT		(1 << MINORBITS)
 
 /* For extended devt allocation.  ext_devt_mutex prevents look up
  * results from going away underneath its user.
@@ -420,17 +420,18 @@ int blk_alloc_devt(struct hd_struct *par
 	do {
 		if (!idr_pre_get(&ext_devt_idr, GFP_KERNEL))
 			return -ENOMEM;
+		mutex_lock(&ext_devt_mutex);
 		rc = idr_get_new(&ext_devt_idr, part, &idx);
+		if (!rc && idx >= NR_EXT_DEVT) {
+			idr_remove(&ext_devt_idr, idx);
+			rc = -EBUSY;
+		}
+		mutex_unlock(&ext_devt_mutex);
 	} while (rc == -EAGAIN);
 
 	if (rc)
 		return rc;
 
-	if (idx > MAX_EXT_DEVT) {
-		idr_remove(&ext_devt_idr, idx);
-		return -EBUSY;
-	}
-
 	*devt = MKDEV(BLOCK_EXT_MAJOR, blk_mangle_minor(idx));
 	return 0;
 }
@@ -517,7 +518,7 @@ static void register_disk(struct gendisk
 
 	ddev->parent = disk->driverfs_dev;
 
-	dev_set_name(ddev, disk->disk_name);
+	dev_set_name(ddev, "%s", disk->disk_name);
 
 	/* delay uevents, until we scanned partition table */
 	dev_set_uevent_suppress(ddev, 1);
@@ -644,7 +645,6 @@ void del_gendisk(struct gendisk *disk)
 	disk_part_iter_exit(&piter);
 
 	invalidate_partition(disk, 0);
-	blk_free_devt(disk_to_dev(disk)->devt);
 	set_capacity(disk, 0);
 	disk->flags &= ~GENHD_FL_UP;
 
@@ -662,6 +662,7 @@ void del_gendisk(struct gendisk *disk)
 	if (!sysfs_deprecated)
 		sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
 	device_del(disk_to_dev(disk));
+	blk_free_devt(disk_to_dev(disk)->devt);
 }
 EXPORT_SYMBOL(del_gendisk);
 
diff -druNp linux-libre-3.4-gnu1/block/partition-generic.c linux-libre-3.4.53-gnu1/block/partition-generic.c
--- linux-libre-3.4-gnu1/block/partition-generic.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/block/partition-generic.c	2013-07-13 14:03:57.000000000 -0400
@@ -249,11 +249,11 @@ void delete_partition(struct gendisk *di
 	if (!part)
 		return;
 
-	blk_free_devt(part_devt(part));
 	rcu_assign_pointer(ptbl->part[partno], NULL);
 	rcu_assign_pointer(ptbl->last_lookup, NULL);
 	kobject_put(part->holder_dir);
 	device_del(part_to_dev(part));
+	blk_free_devt(part_devt(part));
 
 	hd_struct_put(part);
 }
diff -druNp linux-libre-3.4-gnu1/block/scsi_ioctl.c linux-libre-3.4.53-gnu1/block/scsi_ioctl.c
--- linux-libre-3.4-gnu1/block/scsi_ioctl.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/block/scsi_ioctl.c	2013-07-13 14:03:57.000000000 -0400
@@ -721,11 +721,14 @@ int scsi_verify_blk_ioctl(struct block_d
 		break;
 	}
 
+	if (capable(CAP_SYS_RAWIO))
+		return 0;
+
 	/* In particular, rule out all resets and host-specific ioctls.  */
 	printk_ratelimited(KERN_WARNING
 			   "%s: sending ioctl %x to a partition!\n", current->comm, cmd);
 
-	return capable(CAP_SYS_RAWIO) ? 0 : -ENOIOCTLCMD;
+	return -ENOIOCTLCMD;
 }
 EXPORT_SYMBOL(scsi_verify_blk_ioctl);
 
diff -druNp linux-libre-3.4-gnu1/crypto/ablkcipher.c linux-libre-3.4.53-gnu1/crypto/ablkcipher.c
--- linux-libre-3.4-gnu1/crypto/ablkcipher.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/ablkcipher.c	2013-07-13 14:03:57.000000000 -0400
@@ -388,9 +388,9 @@ static int crypto_ablkcipher_report(stru
 {
 	struct crypto_report_blkcipher rblkcipher;
 
-	snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "ablkcipher");
-	snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
-		 alg->cra_ablkcipher.geniv ?: "<default>");
+	strncpy(rblkcipher.type, "ablkcipher", sizeof(rblkcipher.type));
+	strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<default>",
+		sizeof(rblkcipher.geniv));
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_ablkcipher.min_keysize;
@@ -469,9 +469,9 @@ static int crypto_givcipher_report(struc
 {
 	struct crypto_report_blkcipher rblkcipher;
 
-	snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "givcipher");
-	snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
-		 alg->cra_ablkcipher.geniv ?: "<built-in>");
+	strncpy(rblkcipher.type, "givcipher", sizeof(rblkcipher.type));
+	strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<built-in>",
+		sizeof(rblkcipher.geniv));
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_ablkcipher.min_keysize;
diff -druNp linux-libre-3.4-gnu1/crypto/aead.c linux-libre-3.4.53-gnu1/crypto/aead.c
--- linux-libre-3.4-gnu1/crypto/aead.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/aead.c	2013-07-13 14:03:57.000000000 -0400
@@ -117,9 +117,8 @@ static int crypto_aead_report(struct sk_
 	struct crypto_report_aead raead;
 	struct aead_alg *aead = &alg->cra_aead;
 
-	snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "aead");
-	snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s",
-		 aead->geniv ?: "<built-in>");
+	strncpy(raead.type, "aead", sizeof(raead.type));
+	strncpy(raead.geniv, aead->geniv ?: "<built-in>", sizeof(raead.geniv));
 
 	raead.blocksize = alg->cra_blocksize;
 	raead.maxauthsize = aead->maxauthsize;
@@ -203,8 +202,8 @@ static int crypto_nivaead_report(struct
 	struct crypto_report_aead raead;
 	struct aead_alg *aead = &alg->cra_aead;
 
-	snprintf(raead.type, CRYPTO_MAX_ALG_NAME, "%s", "nivaead");
-	snprintf(raead.geniv, CRYPTO_MAX_ALG_NAME, "%s", aead->geniv);
+	strncpy(raead.type, "nivaead", sizeof(raead.type));
+	strncpy(raead.geniv, aead->geniv, sizeof(raead.geniv));
 
 	raead.blocksize = alg->cra_blocksize;
 	raead.maxauthsize = aead->maxauthsize;
diff -druNp linux-libre-3.4-gnu1/crypto/ahash.c linux-libre-3.4.53-gnu1/crypto/ahash.c
--- linux-libre-3.4-gnu1/crypto/ahash.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/ahash.c	2013-07-13 14:03:57.000000000 -0400
@@ -404,7 +404,7 @@ static int crypto_ahash_report(struct sk
 {
 	struct crypto_report_hash rhash;
 
-	snprintf(rhash.type, CRYPTO_MAX_ALG_NAME, "%s", "ahash");
+	strncpy(rhash.type, "ahash", sizeof(rhash.type));
 
 	rhash.blocksize = alg->cra_blocksize;
 	rhash.digestsize = __crypto_hash_alg_common(alg)->digestsize;
diff -druNp linux-libre-3.4-gnu1/crypto/algapi.c linux-libre-3.4.53-gnu1/crypto/algapi.c
--- linux-libre-3.4-gnu1/crypto/algapi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/algapi.c	2013-07-13 14:03:57.000000000 -0400
@@ -512,7 +512,8 @@ static struct crypto_template *__crypto_
 
 struct crypto_template *crypto_lookup_template(const char *name)
 {
-	return try_then_request_module(__crypto_lookup_template(name), name);
+	return try_then_request_module(__crypto_lookup_template(name), "%s",
+				       name);
 }
 EXPORT_SYMBOL_GPL(crypto_lookup_template);
 
diff -druNp linux-libre-3.4-gnu1/crypto/algif_hash.c linux-libre-3.4.53-gnu1/crypto/algif_hash.c
--- linux-libre-3.4-gnu1/crypto/algif_hash.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/algif_hash.c	2013-07-13 14:03:57.000000000 -0400
@@ -161,6 +161,8 @@ static int hash_recvmsg(struct kiocb *un
 	else if (len < ds)
 		msg->msg_flags |= MSG_TRUNC;
 
+	msg->msg_namelen = 0;
+
 	lock_sock(sk);
 	if (ctx->more) {
 		ctx->more = 0;
diff -druNp linux-libre-3.4-gnu1/crypto/algif_skcipher.c linux-libre-3.4.53-gnu1/crypto/algif_skcipher.c
--- linux-libre-3.4-gnu1/crypto/algif_skcipher.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/algif_skcipher.c	2013-07-13 14:03:57.000000000 -0400
@@ -432,6 +432,7 @@ static int skcipher_recvmsg(struct kiocb
 	long copied = 0;
 
 	lock_sock(sk);
+	msg->msg_namelen = 0;
 	for (iov = msg->msg_iov, iovlen = msg->msg_iovlen; iovlen > 0;
 	     iovlen--, iov++) {
 		unsigned long seglen = iov->iov_len;
diff -druNp linux-libre-3.4-gnu1/crypto/blkcipher.c linux-libre-3.4.53-gnu1/crypto/blkcipher.c
--- linux-libre-3.4-gnu1/crypto/blkcipher.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/blkcipher.c	2013-07-13 14:03:57.000000000 -0400
@@ -499,9 +499,9 @@ static int crypto_blkcipher_report(struc
 {
 	struct crypto_report_blkcipher rblkcipher;
 
-	snprintf(rblkcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "blkcipher");
-	snprintf(rblkcipher.geniv, CRYPTO_MAX_ALG_NAME, "%s",
-		 alg->cra_blkcipher.geniv ?: "<default>");
+	strncpy(rblkcipher.type, "blkcipher", sizeof(rblkcipher.type));
+	strncpy(rblkcipher.geniv, alg->cra_blkcipher.geniv ?: "<default>",
+		sizeof(rblkcipher.geniv));
 
 	rblkcipher.blocksize = alg->cra_blocksize;
 	rblkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
diff -druNp linux-libre-3.4-gnu1/crypto/cryptd.c linux-libre-3.4.53-gnu1/crypto/cryptd.c
--- linux-libre-3.4-gnu1/crypto/cryptd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/cryptd.c	2013-07-13 14:03:57.000000000 -0400
@@ -137,13 +137,18 @@ static void cryptd_queue_worker(struct w
 	struct crypto_async_request *req, *backlog;
 
 	cpu_queue = container_of(work, struct cryptd_cpu_queue, work);
-	/* Only handle one request at a time to avoid hogging crypto
-	 * workqueue. preempt_disable/enable is used to prevent
-	 * being preempted by cryptd_enqueue_request() */
+	/*
+	 * Only handle one request at a time to avoid hogging crypto workqueue.
+	 * preempt_disable/enable is used to prevent being preempted by
+	 * cryptd_enqueue_request(). local_bh_disable/enable is used to prevent
+	 * cryptd_enqueue_request() being accessed from software interrupts.
+	 */
+	local_bh_disable();
 	preempt_disable();
 	backlog = crypto_get_backlog(&cpu_queue->queue);
 	req = crypto_dequeue_request(&cpu_queue->queue);
 	preempt_enable();
+	local_bh_enable();
 
 	if (!req)
 		return;
diff -druNp linux-libre-3.4-gnu1/crypto/crypto_user.c linux-libre-3.4.53-gnu1/crypto/crypto_user.c
--- linux-libre-3.4-gnu1/crypto/crypto_user.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/crypto_user.c	2013-07-13 14:03:57.000000000 -0400
@@ -75,7 +75,7 @@ static int crypto_report_cipher(struct s
 {
 	struct crypto_report_cipher rcipher;
 
-	snprintf(rcipher.type, CRYPTO_MAX_ALG_NAME, "%s", "cipher");
+	strncpy(rcipher.type, "cipher", sizeof(rcipher.type));
 
 	rcipher.blocksize = alg->cra_blocksize;
 	rcipher.min_keysize = alg->cra_cipher.cia_min_keysize;
@@ -94,8 +94,7 @@ static int crypto_report_comp(struct sk_
 {
 	struct crypto_report_comp rcomp;
 
-	snprintf(rcomp.type, CRYPTO_MAX_ALG_NAME, "%s", "compression");
-
+	strncpy(rcomp.type, "compression", sizeof(rcomp.type));
 	NLA_PUT(skb, CRYPTOCFGA_REPORT_COMPRESS,
 		sizeof(struct crypto_report_comp), &rcomp);
 
@@ -108,12 +107,14 @@ nla_put_failure:
 static int crypto_report_one(struct crypto_alg *alg,
 			     struct crypto_user_alg *ualg, struct sk_buff *skb)
 {
-	memcpy(&ualg->cru_name, &alg->cra_name, sizeof(ualg->cru_name));
-	memcpy(&ualg->cru_driver_name, &alg->cra_driver_name,
-	       sizeof(ualg->cru_driver_name));
-	memcpy(&ualg->cru_module_name, module_name(alg->cra_module),
-	       CRYPTO_MAX_ALG_NAME);
+	strncpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
+	strncpy(ualg->cru_driver_name, alg->cra_driver_name,
+		sizeof(ualg->cru_driver_name));
+	strncpy(ualg->cru_module_name, module_name(alg->cra_module),
+		sizeof(ualg->cru_module_name));
 
+	ualg->cru_type = 0;
+	ualg->cru_mask = 0;
 	ualg->cru_flags = alg->cra_flags;
 	ualg->cru_refcnt = atomic_read(&alg->cra_refcnt);
 
@@ -122,8 +123,7 @@ static int crypto_report_one(struct cryp
 	if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
 		struct crypto_report_larval rl;
 
-		snprintf(rl.type, CRYPTO_MAX_ALG_NAME, "%s", "larval");
-
+		strncpy(rl.type, "larval", sizeof(rl.type));
 		NLA_PUT(skb, CRYPTOCFGA_REPORT_LARVAL,
 			sizeof(struct crypto_report_larval), &rl);
 
diff -druNp linux-libre-3.4-gnu1/crypto/gcm.c linux-libre-3.4.53-gnu1/crypto/gcm.c
--- linux-libre-3.4-gnu1/crypto/gcm.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/gcm.c	2013-07-13 14:03:57.000000000 -0400
@@ -44,6 +44,7 @@ struct crypto_rfc4543_ctx {
 
 struct crypto_rfc4543_req_ctx {
 	u8 auth_tag[16];
+	u8 assocbuf[32];
 	struct scatterlist cipher[1];
 	struct scatterlist payload[2];
 	struct scatterlist assoc[2];
@@ -1142,9 +1143,19 @@ static struct aead_request *crypto_rfc45
 	scatterwalk_crypto_chain(payload, dst, vdst == req->iv + 8, 2);
 	assoclen += 8 + req->cryptlen - (enc ? 0 : authsize);
 
-	sg_init_table(assoc, 2);
-	sg_set_page(assoc, sg_page(req->assoc), req->assoc->length,
-		    req->assoc->offset);
+	if (req->assoc->length == req->assoclen) {
+		sg_init_table(assoc, 2);
+		sg_set_page(assoc, sg_page(req->assoc), req->assoc->length,
+			    req->assoc->offset);
+	} else {
+		BUG_ON(req->assoclen > sizeof(rctx->assocbuf));
+
+		scatterwalk_map_and_copy(rctx->assocbuf, req->assoc, 0,
+					 req->assoclen, 0);
+
+		sg_init_table(assoc, 2);
+		sg_set_buf(assoc, rctx->assocbuf, req->assoclen);
+	}
 	scatterwalk_crypto_chain(assoc, payload, 0, 2);
 
 	aead_request_set_tfm(subreq, ctx->child);
diff -druNp linux-libre-3.4-gnu1/crypto/pcompress.c linux-libre-3.4.53-gnu1/crypto/pcompress.c
--- linux-libre-3.4-gnu1/crypto/pcompress.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/pcompress.c	2013-07-13 14:03:57.000000000 -0400
@@ -53,8 +53,7 @@ static int crypto_pcomp_report(struct sk
 {
 	struct crypto_report_comp rpcomp;
 
-	snprintf(rpcomp.type, CRYPTO_MAX_ALG_NAME, "%s", "pcomp");
-
+	strncpy(rpcomp.type, "pcomp", sizeof(rpcomp.type));
 	NLA_PUT(skb, CRYPTOCFGA_REPORT_COMPRESS,
 		sizeof(struct crypto_report_comp), &rpcomp);
 
diff -druNp linux-libre-3.4-gnu1/crypto/rng.c linux-libre-3.4.53-gnu1/crypto/rng.c
--- linux-libre-3.4-gnu1/crypto/rng.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/rng.c	2013-07-13 14:03:57.000000000 -0400
@@ -65,7 +65,7 @@ static int crypto_rng_report(struct sk_b
 {
 	struct crypto_report_rng rrng;
 
-	snprintf(rrng.type, CRYPTO_MAX_ALG_NAME, "%s", "rng");
+	strncpy(rrng.type, "rng", sizeof(rrng.type));
 
 	rrng.seedsize = alg->cra_rng.seedsize;
 
diff -druNp linux-libre-3.4-gnu1/crypto/shash.c linux-libre-3.4.53-gnu1/crypto/shash.c
--- linux-libre-3.4-gnu1/crypto/shash.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/crypto/shash.c	2013-07-13 14:03:57.000000000 -0400
@@ -530,7 +530,8 @@ static int crypto_shash_report(struct sk
 	struct crypto_report_hash rhash;
 	struct shash_alg *salg = __crypto_shash_alg(alg);
 
-	snprintf(rhash.type, CRYPTO_MAX_ALG_NAME, "%s", "shash");
+	strncpy(rhash.type, "shash", sizeof(rhash.type));
+
 	rhash.blocksize = alg->cra_blocksize;
 	rhash.digestsize = salg->digestsize;
 
diff -druNp linux-libre-3.4-gnu1/Documentation/ABI/testing/sysfs-bus-rbd linux-libre-3.4.53-gnu1/Documentation/ABI/testing/sysfs-bus-rbd
--- linux-libre-3.4-gnu1/Documentation/ABI/testing/sysfs-bus-rbd	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/ABI/testing/sysfs-bus-rbd	2013-07-13 14:03:57.000000000 -0400
@@ -51,12 +51,6 @@ current_snap
 
 	The current snapshot for which the device is mapped.
 
-create_snap
-
-	Create a snapshot:
-
-	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
-
 snap_*
 
 	A directory per each snapshot
diff -druNp linux-libre-3.4-gnu1/Documentation/cgroups/memory.txt linux-libre-3.4.53-gnu1/Documentation/cgroups/memory.txt
--- linux-libre-3.4-gnu1/Documentation/cgroups/memory.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/cgroups/memory.txt	2013-07-13 14:03:57.000000000 -0400
@@ -466,6 +466,10 @@ Note:
 5.3 swappiness
 
 Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
+Please note that unlike the global swappiness, memcg knob set to 0
+really prevents from any swapping even if there is a swap storage
+available. This might lead to memcg OOM killer if there are no file
+pages to reclaim.
 
 Following cgroups' swappiness can't be changed.
 - root cgroup (uses /proc/sys/vm/swappiness).
diff -druNp linux-libre-3.4-gnu1/Documentation/device-mapper/verity.txt linux-libre-3.4.53-gnu1/Documentation/device-mapper/verity.txt
--- linux-libre-3.4-gnu1/Documentation/device-mapper/verity.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/device-mapper/verity.txt	2013-07-13 14:03:57.000000000 -0400
@@ -7,39 +7,39 @@ This target is read-only.
 
 Construction Parameters
 =======================
-    <version> <dev> <hash_dev> <hash_start>
+    <version> <dev> <hash_dev>
     <data_block_size> <hash_block_size>
     <num_data_blocks> <hash_start_block>
     <algorithm> <digest> <salt>
 
 <version>
-    This is the version number of the on-disk format.
+    This is the type of the on-disk hash format.
 
     0 is the original format used in the Chromium OS.
-	The salt is appended when hashing, digests are stored continuously and
-	the rest of the block is padded with zeros.
+      The salt is appended when hashing, digests are stored continuously and
+      the rest of the block is padded with zeros.
 
     1 is the current format that should be used for new devices.
-	The salt is prepended when hashing and each digest is
-	padded with zeros to the power of two.
+      The salt is prepended when hashing and each digest is
+      padded with zeros to the power of two.
 
 <dev>
-    This is the device containing the data the integrity of which needs to be
+    This is the device containing data, the integrity of which needs to be
     checked.  It may be specified as a path, like /dev/sdaX, or a device number,
     <major>:<minor>.
 
 <hash_dev>
-    This is the device that that supplies the hash tree data.  It may be
+    This is the device that supplies the hash tree data.  It may be
     specified similarly to the device path and may be the same device.  If the
-    same device is used, the hash_start should be outside of the dm-verity
-    configured device size.
+    same device is used, the hash_start should be outside the configured
+    dm-verity device.
 
 <data_block_size>
-    The block size on a data device.  Each block corresponds to one digest on
-    the hash device.
+    The block size on a data device in bytes.
+    Each block corresponds to one digest on the hash device.
 
 <hash_block_size>
-    The size of a hash block.
+    The size of a hash block in bytes.
 
 <num_data_blocks>
     The number of data blocks on the data device.  Additional blocks are
@@ -65,7 +65,7 @@ Construction Parameters
 Theory of operation
 ===================
 
-dm-verity is meant to be setup as part of a verified boot path.  This
+dm-verity is meant to be set up as part of a verified boot path.  This
 may be anything ranging from a boot using tboot or trustedgrub to just
 booting from a known-good device (like a USB drive or CD).
 
@@ -73,20 +73,20 @@ When a dm-verity device is configured, i
 has been authenticated in some way (cryptographic signatures, etc).
 After instantiation, all hashes will be verified on-demand during
 disk access.  If they cannot be verified up to the root node of the
-tree, the root hash, then the I/O will fail.  This should identify
+tree, the root hash, then the I/O will fail.  This should detect
 tampering with any data on the device and the hash data.
 
 Cryptographic hashes are used to assert the integrity of the device on a
-per-block basis.  This allows for a lightweight hash computation on first read
-into the page cache.  Block hashes are stored linearly-aligned to the nearest
-block the size of a page.
+per-block basis. This allows for a lightweight hash computation on first read
+into the page cache. Block hashes are stored linearly, aligned to the nearest
+block size.
 
 Hash Tree
 ---------
 
 Each node in the tree is a cryptographic hash.  If it is a leaf node, the hash
-is of some block data on disk.  If it is an intermediary node, then the hash is
-of a number of child nodes.
+of some data block on disk is calculated. If it is an intermediary node,
+the hash of a number of child nodes is calculated.
 
 Each entry in the tree is a collection of neighboring nodes that fit in one
 block.  The number is determined based on block_size and the size of the
@@ -110,63 +110,23 @@ alg = sha256, num_blocks = 32768, block_
 On-disk format
 ==============
 
-Below is the recommended on-disk format. The verity kernel code does not
-read the on-disk header. It only reads the hash blocks which directly
-follow the header. It is expected that a user-space tool will verify the
-integrity of the verity_header and then call dmsetup with the correct
-parameters. Alternatively, the header can be omitted and the dmsetup
-parameters can be passed via the kernel command-line in a rooted chain
-of trust where the command-line is verified.
-
-The on-disk format is especially useful in cases where the hash blocks
-are on a separate partition. The magic number allows easy identification
-of the partition contents. Alternatively, the hash blocks can be stored
-in the same partition as the data to be verified. In such a configuration
-the filesystem on the partition would be sized a little smaller than
-the full-partition, leaving room for the hash blocks.
-
-struct superblock {
-	uint8_t signature[8]
-		"verity\0\0";
-
-	uint8_t version;
-		1 - current format
-
-	uint8_t data_block_bits;
-		log2(data block size)
-
-	uint8_t hash_block_bits;
-		log2(hash block size)
-
-	uint8_t pad1[1];
-		zero padding
-
-	uint16_t salt_size;
-		big-endian salt size
-
-	uint8_t pad2[2];
-		zero padding
-
-	uint32_t data_blocks_hi;
-		big-endian high 32 bits of the 64-bit number of data blocks
-
-	uint32_t data_blocks_lo;
-		big-endian low 32 bits of the 64-bit number of data blocks
-
-	uint8_t algorithm[16];
-		cryptographic algorithm
-
-	uint8_t salt[384];
-		salt (the salt size is specified above)
+The verity kernel code does not read the verity metadata on-disk header.
+It only reads the hash blocks which directly follow the header.
+It is expected that a user-space tool will verify the integrity of the
+verity header.
 
-	uint8_t pad3[88];
-		zero padding to 512-byte boundary
-}
+Alternatively, the header can be omitted and the dmsetup parameters can
+be passed via the kernel command-line in a rooted chain of trust where
+the command-line is verified.
 
 Directly following the header (and with sector number padded to the next hash
 block boundary) are the hash blocks which are stored a depth at a time
 (starting from the root), sorted in order of increasing index.
 
+The full specification of kernel parameters and on-disk metadata format
+is available at the cryptsetup project's wiki page
+  http://code.google.com/p/cryptsetup/wiki/DMVerity
+
 Status
 ======
 V (for Valid) is returned if every check performed so far was valid.
@@ -174,21 +134,22 @@ If any check failed, C (for Corruption)
 
 Example
 =======
-
-Setup a device:
-  dmsetup create vroot --table \
-    "0 2097152 "\
-    "verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\
+Set up a device:
+  # dmsetup create vroot --readonly --table \
+    "0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\
     "4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\
     "1234000000000000000000000000000000000000000000000000000000000000"
 
 A command line tool veritysetup is available to compute or verify
-the hash tree or activate the kernel driver.  This is available from
-the LVM2 upstream repository and may be supplied as a package called
-device-mapper-verity-tools:
-    git://sources.redhat.com/git/lvm2
-    http://sourceware.org/git/?p=lvm2.git
-    http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2
+the hash tree or activate the kernel device. This is available from
+the cryptsetup upstream repository http://code.google.com/p/cryptsetup/
+(as a libcryptsetup extension).
 
-veritysetup -a vroot /dev/sda1 /dev/sda2 \
-	4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
+Create hash on the device:
+  # veritysetup format /dev/sda1 /dev/sda2
+  ...
+  Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
+
+Activate the device:
+  # veritysetup create vroot /dev/sda1 /dev/sda2 \
+    4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
diff -druNp linux-libre-3.4-gnu1/Documentation/devicetree/bindings/arm/atmel-at91.txt linux-libre-3.4.53-gnu1/Documentation/devicetree/bindings/arm/atmel-at91.txt
--- linux-libre-3.4-gnu1/Documentation/devicetree/bindings/arm/atmel-at91.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/devicetree/bindings/arm/atmel-at91.txt	2013-07-13 14:03:57.000000000 -0400
@@ -8,7 +8,7 @@ PIT Timer required properties:
   shared across all System Controller members.
 
 TC/TCLIB Timer required properties:
-- compatible: Should be "atmel,<chip>-pit".
+- compatible: Should be "atmel,<chip>-tcb".
   <chip> can be "at91rm9200" or "at91sam9x5"
 - reg: Should contain registers location and length
 - interrupts: Should contain all interrupts for the TC block
diff -druNp linux-libre-3.4-gnu1/Documentation/HOWTO linux-libre-3.4.53-gnu1/Documentation/HOWTO
--- linux-libre-3.4-gnu1/Documentation/HOWTO	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/HOWTO	2013-07-13 14:03:57.000000000 -0400
@@ -218,16 +218,16 @@ The development process
 Linux kernel development process currently consists of a few different
 main kernel "branches" and lots of different subsystem-specific kernel
 branches.  These different branches are:
-  - main 2.6.x kernel tree
-  - 2.6.x.y -stable kernel tree
-  - 2.6.x -git kernel patches
+  - main 3.x kernel tree
+  - 3.x.y -stable kernel tree
+  - 3.x -git kernel patches
   - subsystem specific kernel trees and patches
-  - the 2.6.x -next kernel tree for integration tests
+  - the 3.x -next kernel tree for integration tests
 
-2.6.x kernel tree
+3.x kernel tree
 -----------------
-2.6.x kernels are maintained by Linus Torvalds, and can be found on
-kernel.org in the pub/linux/kernel/v2.6/ directory.  Its development
+3.x kernels are maintained by Linus Torvalds, and can be found on
+kernel.org in the pub/linux/kernel/v3.x/ directory.  Its development
 process is as follows:
   - As soon as a new kernel is released a two weeks window is open,
     during this period of time maintainers can submit big diffs to
@@ -262,20 +262,20 @@ mailing list about kernel releases:
 	released according to perceived bug status, not according to a
 	preconceived timeline."
 
-2.6.x.y -stable kernel tree
+3.x.y -stable kernel tree
 ---------------------------
-Kernels with 4-part versions are -stable kernels. They contain
+Kernels with 3-part versions are -stable kernels. They contain
 relatively small and critical fixes for security problems or significant
-regressions discovered in a given 2.6.x kernel.
+regressions discovered in a given 3.x kernel.
 
 This is the recommended branch for users who want the most recent stable
 kernel and are not interested in helping test development/experimental
 versions.
 
-If no 2.6.x.y kernel is available, then the highest numbered 2.6.x
+If no 3.x.y kernel is available, then the highest numbered 3.x
 kernel is the current stable kernel.
 
-2.6.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
+3.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
 are released as needs dictate.  The normal release period is approximately
 two weeks, but it can be longer if there are no pressing problems.  A
 security-related problem, instead, can cause a release to happen almost
@@ -285,7 +285,7 @@ The file Documentation/stable_kernel_rul
 documents what kinds of changes are acceptable for the -stable tree, and
 how the release process works.
 
-2.6.x -git patches
+3.x -git patches
 ------------------
 These are daily snapshots of Linus' kernel tree which are managed in a
 git repository (hence the name.) These patches are usually released
@@ -317,13 +317,13 @@ revisions to it, and maintainers can mar
 accepted, or rejected.  Most of these patchwork sites are listed at
 http://patchwork.kernel.org/.
 
-2.6.x -next kernel tree for integration tests
+3.x -next kernel tree for integration tests
 ---------------------------------------------
-Before updates from subsystem trees are merged into the mainline 2.6.x
+Before updates from subsystem trees are merged into the mainline 3.x
 tree, they need to be integration-tested.  For this purpose, a special
 testing repository exists into which virtually all subsystem trees are
 pulled on an almost daily basis:
-	http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git
+	http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git
 	http://linux.f-seidel.de/linux-next/pmwiki/
 
 This way, the -next kernel gives a summary outlook onto what will be
diff -druNp linux-libre-3.4-gnu1/Documentation/i2c/busses/i2c-i801 linux-libre-3.4.53-gnu1/Documentation/i2c/busses/i2c-i801
--- linux-libre-3.4-gnu1/Documentation/i2c/busses/i2c-i801	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/i2c/busses/i2c-i801	2013-07-13 14:03:57.000000000 -0400
@@ -21,6 +21,7 @@ Supported adapters:
   * Intel DH89xxCC (PCH)
   * Intel Panther Point (PCH)
   * Intel Lynx Point (PCH)
+  * Intel Lynx Point-LP (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff -druNp linux-libre-3.4-gnu1/Documentation/kernel-parameters.txt linux-libre-3.4.53-gnu1/Documentation/kernel-parameters.txt
--- linux-libre-3.4-gnu1/Documentation/kernel-parameters.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/kernel-parameters.txt	2013-07-13 14:03:57.000000000 -0400
@@ -557,6 +557,8 @@ bytes respectively. Such letter suffixes
 			UART at the specified I/O port or MMIO address,
 			switching to the matching ttyS device later.  The
 			options are the same as for ttyS, above.
+		hvc<n>	Use the hypervisor console device <n>. This is for
+			both Xen and PowerPC hypervisors.
 
                 If the device connected to the port is not a TTY but a braille
                 device, prepend "brl," before the device type, for instance
@@ -742,6 +744,7 @@ bytes respectively. Such letter suffixes
 
 	earlyprintk=	[X86,SH,BLACKFIN]
 			earlyprintk=vga
+			earlyprintk=xen
 			earlyprintk=serial[,ttySn[,baudrate]]
 			earlyprintk=ttySn[,baudrate]
 			earlyprintk=dbgp[debugController#]
@@ -759,6 +762,8 @@ bytes respectively. Such letter suffixes
 			The VGA output is eventually overwritten by the real
 			console.
 
+			The xen output can only be used by Xen PV guests.
+
 	ekgdboc=	[X86,KGDB] Allow early kernel console debugging
 			ekgdboc=kbd
 
diff -druNp linux-libre-3.4-gnu1/Documentation/networking/ip-sysctl.txt linux-libre-3.4.53-gnu1/Documentation/networking/ip-sysctl.txt
--- linux-libre-3.4-gnu1/Documentation/networking/ip-sysctl.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/networking/ip-sysctl.txt	2013-07-13 14:03:57.000000000 -0400
@@ -537,6 +537,11 @@ tcp_thin_dupack - BOOLEAN
 	Documentation/networking/tcp-thin.txt
 	Default: 0
 
+tcp_challenge_ack_limit - INTEGER
+	Limits number of Challenge ACK sent per second, as recommended
+	in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks)
+	Default: 100
+
 UDP variables:
 
 udp_mem - vector of 3 INTEGERs: min, pressure, max
diff -druNp linux-libre-3.4-gnu1/Documentation/sound/alsa/HD-Audio-Models.txt linux-libre-3.4.53-gnu1/Documentation/sound/alsa/HD-Audio-Models.txt
--- linux-libre-3.4-gnu1/Documentation/sound/alsa/HD-Audio-Models.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/sound/alsa/HD-Audio-Models.txt	2013-07-13 14:03:57.000000000 -0400
@@ -21,10 +21,11 @@ ALC267/268
 ==========
   N/A
 
-ALC269
+ALC269/270/275/276/280/282
 ======
   laptop-amic	Laptops with analog-mic input
   laptop-dmic	Laptops with digital-mic input
+  lenovo-dock   Enables docking station I/O for some Lenovos
 
 ALC662/663/272
 ==============
@@ -46,6 +47,7 @@ ALC882/883/885/888/889
   acer-aspire-4930g	Acer Aspire 4930G/5930G/6530G/6930G/7730G
   acer-aspire-8930g	Acer Aspire 8330G/6935G
   acer-aspire		Acer Aspire others
+  no-primary-hp		VAIO Z workaround (for fixed speaker DAC)
 
 ALC861/660
 ==========
diff -druNp linux-libre-3.4-gnu1/Documentation/stable_kernel_rules.txt linux-libre-3.4.53-gnu1/Documentation/stable_kernel_rules.txt
--- linux-libre-3.4-gnu1/Documentation/stable_kernel_rules.txt	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/Documentation/stable_kernel_rules.txt	2013-07-13 14:03:57.000000000 -0400
@@ -1,4 +1,4 @@
-Everything you ever wanted to know about Linux 2.6 -stable releases.
+Everything you ever wanted to know about Linux -stable releases.
 
 Rules on what kind of patches are accepted, and which ones are not, into the
 "-stable" tree:
@@ -12,6 +12,12 @@ Rules on what kind of patches are accept
    marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
    security issue, or some "oh, that's not good" issue.  In short, something
    critical.
+ - Serious issues as reported by a user of a distribution kernel may also
+   be considered if they fix a notable performance or interactivity issue.
+   As these fixes are not as obvious and have a higher risk of a subtle
+   regression they should only be submitted by a distribution kernel
+   maintainer and include an addendum linking to a bugzilla entry if it
+   exists and additional information on the user-visible impact.
  - New device IDs and quirks are also accepted.
  - No "theoretical race condition" issues, unless an explanation of how the
    race can be exploited is also provided.
@@ -36,10 +42,10 @@ Procedure for submitting patches to the
    cherry-picked than this can be specified in the following format in
    the sign-off area:
 
-     Cc: <stable@vger.kernel.org> # .32.x: a1f84a3: sched: Check for idle
-     Cc: <stable@vger.kernel.org> # .32.x: 1b9508f: sched: Rate-limit newidle
-     Cc: <stable@vger.kernel.org> # .32.x: fd21073: sched: Fix affinity logic
-     Cc: <stable@vger.kernel.org> # .32.x
+     Cc: <stable@vger.kernel.org> # 3.3.x: a1f84a3: sched: Check for idle
+     Cc: <stable@vger.kernel.org> # 3.3.x: 1b9508f: sched: Rate-limit newidle
+     Cc: <stable@vger.kernel.org> # 3.3.x: fd21073: sched: Fix affinity logic
+     Cc: <stable@vger.kernel.org> # 3.3.x
     Signed-off-by: Ingo Molnar <mingo@elte.hu>
 
    The tag sequence has the meaning of:
@@ -73,6 +79,15 @@ Review cycle:
    security kernel team, and not go through the normal review cycle.
    Contact the kernel security team for more details on this procedure.
 
+Trees:
+
+ - The queues of patches, for both completed versions and in progress
+   versions can be found at:
+	http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
+ - The finalized and tagged releases of all stable kernels can be found
+   in separate branches per version at:
+	http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git
+
 
 Review committee:
 
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/ac.c linux-libre-3.4.53-gnu1/drivers/acpi/ac.c
--- linux-libre-3.4-gnu1/drivers/acpi/ac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/ac.c	2013-07-13 14:03:57.000000000 -0400
@@ -292,7 +292,9 @@ static int acpi_ac_add(struct acpi_devic
 	ac->charger.properties = ac_props;
 	ac->charger.num_properties = ARRAY_SIZE(ac_props);
 	ac->charger.get_property = get_ac_property;
-	power_supply_register(&ac->device->dev, &ac->charger);
+	result = power_supply_register(&ac->device->dev, &ac->charger);
+	if (result)
+		goto end;
 
 	printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 	       acpi_device_name(device), acpi_device_bid(device),
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/acpica/exfldio.c linux-libre-3.4.53-gnu1/drivers/acpi/acpica/exfldio.c
--- linux-libre-3.4-gnu1/drivers/acpi/acpica/exfldio.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/acpica/exfldio.c	2013-07-13 14:03:57.000000000 -0400
@@ -722,7 +722,19 @@ acpi_ex_extract_from_field(union acpi_op
 
 	if ((obj_desc->common_field.start_field_bit_offset == 0) &&
 	    (obj_desc->common_field.bit_length == access_bit_width)) {
-		status = acpi_ex_field_datum_io(obj_desc, 0, buffer, ACPI_READ);
+		if (buffer_length >= sizeof(u64)) {
+			status =
+			    acpi_ex_field_datum_io(obj_desc, 0, buffer,
+						   ACPI_READ);
+		} else {
+			/* Use raw_datum (u64) to handle buffers < 64 bits */
+
+			status =
+			    acpi_ex_field_datum_io(obj_desc, 0, &raw_datum,
+						   ACPI_READ);
+			ACPI_MEMCPY(buffer, &raw_datum, buffer_length);
+		}
+
 		return_ACPI_STATUS(status);
 	}
 
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/acpica/hwsleep.c linux-libre-3.4.53-gnu1/drivers/acpi/acpica/hwsleep.c
--- linux-libre-3.4-gnu1/drivers/acpi/acpica/hwsleep.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/acpica/hwsleep.c	2013-07-13 14:03:57.000000000 -0400
@@ -95,18 +95,6 @@ acpi_status acpi_hw_legacy_sleep(u8 slee
 		return_ACPI_STATUS(status);
 	}
 
-	if (sleep_state != ACPI_STATE_S5) {
-		/*
-		 * Disable BM arbitration. This feature is contained within an
-		 * optional register (PM2 Control), so ignore a BAD_ADDRESS
-		 * exception.
-		 */
-		status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1);
-		if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
-			return_ACPI_STATUS(status);
-		}
-	}
-
 	/*
 	 * 1) Disable/Clear all GPEs
 	 * 2) Enable all wakeup GPEs
@@ -364,16 +352,6 @@ acpi_status acpi_hw_legacy_wake(u8 sleep
 				    [ACPI_EVENT_POWER_BUTTON].
 				    status_register_id, ACPI_CLEAR_STATUS);
 
-	/*
-	 * Enable BM arbitration. This feature is contained within an
-	 * optional register (PM2 Control), so ignore a BAD_ADDRESS
-	 * exception.
-	 */
-	status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0);
-	if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
-		return_ACPI_STATUS(status);
-	}
-
 	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
 	return_ACPI_STATUS(status);
 }
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/acpica/nspredef.c linux-libre-3.4.53-gnu1/drivers/acpi/acpica/nspredef.c
--- linux-libre-3.4-gnu1/drivers/acpi/acpica/nspredef.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/acpica/nspredef.c	2013-07-13 14:03:57.000000000 -0400
@@ -638,7 +638,7 @@ acpi_ns_check_package(struct acpi_predef
 			/* Create the new outer package and populate it */
 
 			status =
-			    acpi_ns_wrap_with_package(data, *elements,
+			    acpi_ns_wrap_with_package(data, return_object,
 						      return_object_ptr);
 			if (ACPI_FAILURE(status)) {
 				return (status);
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/acpica/tbxface.c linux-libre-3.4.53-gnu1/drivers/acpi/acpica/tbxface.c
--- linux-libre-3.4-gnu1/drivers/acpi/acpica/tbxface.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/acpica/tbxface.c	2013-07-13 14:03:57.000000000 -0400
@@ -436,6 +436,7 @@ acpi_get_table_with_size(char *signature
 
 	return (AE_NOT_FOUND);
 }
+ACPI_EXPORT_SYMBOL(acpi_get_table_with_size)
 
 acpi_status
 acpi_get_table(char *signature,
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/acpi_pad.c linux-libre-3.4.53-gnu1/drivers/acpi/acpi_pad.c
--- linux-libre-3.4-gnu1/drivers/acpi/acpi_pad.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/acpi_pad.c	2013-07-13 14:03:57.000000000 -0400
@@ -36,6 +36,7 @@
 #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator"
 #define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80
 static DEFINE_MUTEX(isolated_cpus_lock);
+static DEFINE_MUTEX(round_robin_lock);
 
 static unsigned long power_saving_mwait_eax;
 
@@ -107,7 +108,7 @@ static void round_robin_cpu(unsigned int
 	if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
 		return;
 
-	mutex_lock(&isolated_cpus_lock);
+	mutex_lock(&round_robin_lock);
 	cpumask_clear(tmp);
 	for_each_cpu(cpu, pad_busy_cpus)
 		cpumask_or(tmp, tmp, topology_thread_cpumask(cpu));
@@ -116,7 +117,7 @@ static void round_robin_cpu(unsigned int
 	if (cpumask_empty(tmp))
 		cpumask_andnot(tmp, cpu_online_mask, pad_busy_cpus);
 	if (cpumask_empty(tmp)) {
-		mutex_unlock(&isolated_cpus_lock);
+		mutex_unlock(&round_robin_lock);
 		return;
 	}
 	for_each_cpu(cpu, tmp) {
@@ -131,7 +132,7 @@ static void round_robin_cpu(unsigned int
 	tsk_in_cpu[tsk_index] = preferred_cpu;
 	cpumask_set_cpu(preferred_cpu, pad_busy_cpus);
 	cpu_weight[preferred_cpu]++;
-	mutex_unlock(&isolated_cpus_lock);
+	mutex_unlock(&round_robin_lock);
 
 	set_cpus_allowed_ptr(current, cpumask_of(preferred_cpu));
 }
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/apei/apei-base.c linux-libre-3.4.53-gnu1/drivers/acpi/apei/apei-base.c
--- linux-libre-3.4-gnu1/drivers/acpi/apei/apei-base.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/apei/apei-base.c	2013-07-13 14:03:57.000000000 -0400
@@ -243,7 +243,7 @@ static int pre_map_gar_callback(struct a
 	u8 ins = entry->instruction;
 
 	if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER)
-		return acpi_os_map_generic_address(&entry->register_region);
+		return apei_map_generic_address(&entry->register_region);
 
 	return 0;
 }
@@ -276,7 +276,7 @@ static int post_unmap_gar_callback(struc
 	u8 ins = entry->instruction;
 
 	if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER)
-		acpi_os_unmap_generic_address(&entry->register_region);
+		apei_unmap_generic_address(&entry->register_region);
 
 	return 0;
 }
@@ -586,6 +586,11 @@ static int apei_check_gar(struct acpi_ge
 	}
 	*access_bit_width = 1UL << (access_size_code + 2);
 
+	/* Fixup common BIOS bug */
+	if (bit_width == 32 && bit_offset == 0 && (*paddr & 0x03) == 0 &&
+	    *access_bit_width < 32)
+		*access_bit_width = 32;
+
 	if ((bit_width + bit_offset) > *access_bit_width) {
 		pr_warning(FW_BUG APEI_PFX
 			   "Invalid bit width + offset in GAR [0x%llx/%u/%u/%u/%u]\n",
@@ -606,6 +611,19 @@ static int apei_check_gar(struct acpi_ge
 	return 0;
 }
 
+int apei_map_generic_address(struct acpi_generic_address *reg)
+{
+	int rc;
+	u32 access_bit_width;
+	u64 address;
+
+	rc = apei_check_gar(reg, &address, &access_bit_width);
+	if (rc)
+		return rc;
+	return acpi_os_map_generic_address(reg);
+}
+EXPORT_SYMBOL_GPL(apei_map_generic_address);
+
 /* read GAR in interrupt (including NMI) or process context */
 int apei_read(u64 *val, struct acpi_generic_address *reg)
 {
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/apei/apei-internal.h linux-libre-3.4.53-gnu1/drivers/acpi/apei/apei-internal.h
--- linux-libre-3.4-gnu1/drivers/acpi/apei/apei-internal.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/apei/apei-internal.h	2013-07-13 14:03:57.000000000 -0400
@@ -7,6 +7,8 @@
 #define APEI_INTERNAL_H
 
 #include <linux/cper.h>
+#include <linux/acpi.h>
+#include <linux/acpi_io.h>
 
 struct apei_exec_context;
 
@@ -68,6 +70,13 @@ static inline int apei_exec_run_optional
 /* IP has been set in instruction function */
 #define APEI_EXEC_SET_IP	1
 
+int apei_map_generic_address(struct acpi_generic_address *reg);
+
+static inline void apei_unmap_generic_address(struct acpi_generic_address *reg)
+{
+	acpi_os_unmap_generic_address(reg);
+}
+
 int apei_read(u64 *val, struct acpi_generic_address *reg);
 int apei_write(u64 val, struct acpi_generic_address *reg);
 
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/apei/ghes.c linux-libre-3.4.53-gnu1/drivers/acpi/apei/ghes.c
--- linux-libre-3.4-gnu1/drivers/acpi/apei/ghes.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/apei/ghes.c	2013-07-13 14:03:57.000000000 -0400
@@ -301,7 +301,7 @@ static struct ghes *ghes_new(struct acpi
 	if (!ghes)
 		return ERR_PTR(-ENOMEM);
 	ghes->generic = generic;
-	rc = acpi_os_map_generic_address(&generic->error_status_address);
+	rc = apei_map_generic_address(&generic->error_status_address);
 	if (rc)
 		goto err_free;
 	error_block_length = generic->error_block_length;
@@ -321,7 +321,7 @@ static struct ghes *ghes_new(struct acpi
 	return ghes;
 
 err_unmap:
-	acpi_os_unmap_generic_address(&generic->error_status_address);
+	apei_unmap_generic_address(&generic->error_status_address);
 err_free:
 	kfree(ghes);
 	return ERR_PTR(rc);
@@ -330,7 +330,7 @@ err_free:
 static void ghes_fini(struct ghes *ghes)
 {
 	kfree(ghes->estatus);
-	acpi_os_unmap_generic_address(&ghes->generic->error_status_address);
+	apei_unmap_generic_address(&ghes->generic->error_status_address);
 }
 
 enum {
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/battery.c linux-libre-3.4.53-gnu1/drivers/acpi/battery.c
--- linux-libre-3.4-gnu1/drivers/acpi/battery.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/battery.c	2013-07-13 14:03:57.000000000 -0400
@@ -34,6 +34,7 @@
 #include <linux/dmi.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
+#include <asm/unaligned.h>
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
@@ -95,6 +96,18 @@ enum {
 	ACPI_BATTERY_ALARM_PRESENT,
 	ACPI_BATTERY_XINFO_PRESENT,
 	ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY,
+	/* On Lenovo Thinkpad models from 2010 and 2011, the power unit
+	   switches between mWh and mAh depending on whether the system
+	   is running on battery or not.  When mAh is the unit, most
+	   reported values are incorrect and need to be adjusted by
+	   10000/design_voltage.  Verified on x201, t410, t410s, and x220.
+	   Pre-2010 and 2012 models appear to always report in mWh and
+	   are thus unaffected (tested with t42, t61, t500, x200, x300,
+	   and x230).  Also, in mid-2012 Lenovo issued a BIOS update for
+	   the 2011 models that fixes the issue (tested on x220 with a
+	   post-1.29 BIOS), but as of Nov. 2012, no such update is
+	   available for the 2010 models.  */
+	ACPI_BATTERY_QUIRK_THINKPAD_MAH,
 };
 
 struct acpi_battery {
@@ -429,6 +442,21 @@ static int acpi_battery_get_info(struct
 	kfree(buffer.pointer);
 	if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags))
 		battery->full_charge_capacity = battery->design_capacity;
+	if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags) &&
+	    battery->power_unit && battery->design_voltage) {
+		battery->design_capacity = battery->design_capacity *
+		    10000 / battery->design_voltage;
+		battery->full_charge_capacity = battery->full_charge_capacity *
+		    10000 / battery->design_voltage;
+		battery->design_capacity_warning =
+		    battery->design_capacity_warning *
+		    10000 / battery->design_voltage;
+		/* Curiously, design_capacity_low, unlike the rest of them,
+		   is correct.  */
+		/* capacity_granularity_* equal 1 on the systems tested, so
+		   it's impossible to tell if they would need an adjustment
+		   or not if their values were higher.  */
+	}
 	return result;
 }
 
@@ -477,6 +505,11 @@ static int acpi_battery_get_state(struct
 	    && battery->capacity_now >= 0 && battery->capacity_now <= 100)
 		battery->capacity_now = (battery->capacity_now *
 				battery->full_charge_capacity) / 100;
+	if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags) &&
+	    battery->power_unit && battery->design_voltage) {
+		battery->capacity_now = battery->capacity_now *
+		    10000 / battery->design_voltage;
+	}
 	return result;
 }
 
@@ -586,6 +619,24 @@ static void sysfs_remove_battery(struct
 	mutex_unlock(&battery->sysfs_lock);
 }
 
+static void find_battery(const struct dmi_header *dm, void *private)
+{
+	struct acpi_battery *battery = (struct acpi_battery *)private;
+	/* Note: the hardcoded offsets below have been extracted from
+	   the source code of dmidecode.  */
+	if (dm->type == DMI_ENTRY_PORTABLE_BATTERY && dm->length >= 8) {
+		const u8 *dmi_data = (const u8 *)(dm + 1);
+		int dmi_capacity = get_unaligned((const u16 *)(dmi_data + 6));
+		if (dm->length >= 18)
+			dmi_capacity *= dmi_data[17];
+		if (battery->design_capacity * battery->design_voltage / 1000
+		    != dmi_capacity &&
+		    battery->design_capacity * 10 == dmi_capacity)
+			set_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH,
+				&battery->flags);
+	}
+}
+
 /*
  * According to the ACPI spec, some kinds of primary batteries can
  * report percentage battery remaining capacity directly to OS.
@@ -611,6 +662,32 @@ static void acpi_battery_quirks(struct a
 		battery->capacity_now = (battery->capacity_now *
 				battery->full_charge_capacity) / 100;
 	}
+
+	if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH, &battery->flags))
+		return ;
+
+	if (battery->power_unit && dmi_name_in_vendors("LENOVO")) {
+		const char *s;
+		s = dmi_get_system_info(DMI_PRODUCT_VERSION);
+		if (s && !strnicmp(s, "ThinkPad", 8)) {
+			dmi_walk(find_battery, battery);
+			if (test_bit(ACPI_BATTERY_QUIRK_THINKPAD_MAH,
+				     &battery->flags) &&
+			    battery->design_voltage) {
+				battery->design_capacity =
+				    battery->design_capacity *
+				    10000 / battery->design_voltage;
+				battery->full_charge_capacity =
+				    battery->full_charge_capacity *
+				    10000 / battery->design_voltage;
+				battery->design_capacity_warning =
+				    battery->design_capacity_warning *
+				    10000 / battery->design_voltage;
+				battery->capacity_now = battery->capacity_now *
+				    10000 / battery->design_voltage;
+			}
+		}
+	}
 }
 
 static int acpi_battery_update(struct acpi_battery *battery)
@@ -643,11 +720,19 @@ static int acpi_battery_update(struct ac
 
 static void acpi_battery_refresh(struct acpi_battery *battery)
 {
+	int power_unit;
+
 	if (!battery->bat.dev)
 		return;
 
+	power_unit = battery->power_unit;
+
 	acpi_battery_get_info(battery);
-	/* The battery may have changed its reporting units. */
+
+	if (power_unit == battery->power_unit)
+		return;
+
+	/* The battery has changed its reporting units. */
 	sysfs_remove_battery(battery);
 	sysfs_add_battery(battery);
 }
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/bus.c linux-libre-3.4.53-gnu1/drivers/acpi/bus.c
--- linux-libre-3.4-gnu1/drivers/acpi/bus.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/bus.c	2013-07-13 14:03:57.000000000 -0400
@@ -954,8 +954,6 @@ static int __init acpi_bus_init(void)
 	status = acpi_ec_ecdt_probe();
 	/* Ignore result. Not having an ECDT is not fatal. */
 
-	acpi_bus_osc_support();
-
 	status = acpi_initialize_objects(ACPI_FULL_INITIALIZATION);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PREFIX "Unable to initialize ACPI objects\n");
@@ -963,6 +961,12 @@ static int __init acpi_bus_init(void)
 	}
 
 	/*
+	 * _OSC method may exist in module level code,
+	 * so it must be run after ACPI_FULL_INITIALIZATION
+	 */
+	acpi_bus_osc_support();
+
+	/*
 	 * _PDC control method may load dynamic SSDT tables,
 	 * and we need to install the table handler before that.
 	 */
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/ec.c linux-libre-3.4.53-gnu1/drivers/acpi/ec.c
--- linux-libre-3.4-gnu1/drivers/acpi/ec.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/ec.c	2013-07-13 14:03:57.000000000 -0400
@@ -71,9 +71,6 @@ enum ec_command {
 #define ACPI_EC_UDELAY_GLK	1000	/* Wait 1ms max. to get global lock */
 #define ACPI_EC_MSI_UDELAY	550	/* Wait 550us for MSI EC */
 
-#define ACPI_EC_STORM_THRESHOLD 8	/* number of false interrupts
-					   per one transaction */
-
 enum {
 	EC_FLAGS_QUERY_PENDING,		/* Query is pending */
 	EC_FLAGS_GPE_STORM,		/* GPE storm detected */
@@ -87,6 +84,15 @@ static unsigned int ec_delay __read_most
 module_param(ec_delay, uint, 0644);
 MODULE_PARM_DESC(ec_delay, "Timeout(ms) waited until an EC command completes");
 
+/*
+ * If the number of false interrupts per one transaction exceeds
+ * this threshold, will think there is a GPE storm happened and
+ * will disable the GPE for normal transaction.
+ */
+static unsigned int ec_storm_threshold  __read_mostly = 8;
+module_param(ec_storm_threshold, uint, 0644);
+MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
+
 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
 /* External interfaces use first EC only, so remember */
 typedef int (*acpi_ec_query_func) (void *data);
@@ -211,7 +217,7 @@ static int ec_check_sci_sync(struct acpi
 static int ec_poll(struct acpi_ec *ec)
 {
 	unsigned long flags;
-	int repeat = 2; /* number of command restarts */
+	int repeat = 5; /* number of command restarts */
 	while (repeat--) {
 		unsigned long delay = jiffies +
 			msecs_to_jiffies(ec_delay);
@@ -229,8 +235,6 @@ static int ec_poll(struct acpi_ec *ec)
 			}
 			advance_transaction(ec, acpi_ec_read_status(ec));
 		} while (time_before(jiffies, delay));
-		if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
-			break;
 		pr_debug(PREFIX "controller reset, restart transaction\n");
 		spin_lock_irqsave(&ec->curr_lock, flags);
 		start_transaction(ec);
@@ -319,7 +323,7 @@ static int acpi_ec_transaction(struct ac
 		msleep(1);
 		/* It is safe to enable the GPE outside of the transaction. */
 		acpi_enable_gpe(NULL, ec->gpe);
-	} else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) {
+	} else if (t->irq_count > ec_storm_threshold) {
 		pr_info(PREFIX "GPE storm detected, "
 			"transactions will use polling mode\n");
 		set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
@@ -924,6 +928,17 @@ static int ec_flag_msi(const struct dmi_
 	return 0;
 }
 
+/*
+ * Clevo M720 notebook actually works ok with IRQ mode, if we lifted
+ * the GPE storm threshold back to 20
+ */
+static int ec_enlarge_storm_threshold(const struct dmi_system_id *id)
+{
+	pr_debug("Setting the EC GPE storm threshold to 20\n");
+	ec_storm_threshold  = 20;
+	return 0;
+}
+
 static struct dmi_system_id __initdata ec_dmi_table[] = {
 	{
 	ec_skip_dsdt_scan, "Compal JFL92", {
@@ -955,10 +970,13 @@ static struct dmi_system_id __initdata e
 	{
 	ec_validate_ecdt, "ASUS hardware", {
 	DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc.") }, NULL},
+	{
+	ec_enlarge_storm_threshold, "CLEVO hardware", {
+	DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
+	DMI_MATCH(DMI_PRODUCT_NAME, "M720T/M730T"),}, NULL},
 	{},
 };
 
-
 int __init acpi_ec_ecdt_probe(void)
 {
 	acpi_status status;
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/osl.c linux-libre-3.4.53-gnu1/drivers/acpi/osl.c
--- linux-libre-3.4-gnu1/drivers/acpi/osl.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/osl.c	2013-07-13 14:03:57.000000000 -0400
@@ -250,7 +250,7 @@ acpi_physical_address __init acpi_os_get
 		return acpi_rsdp;
 #endif
 
-	if (efi_enabled) {
+	if (efi_enabled(EFI_CONFIG_TABLES)) {
 		if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
 			return efi.acpi20;
 		else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/pci_root.c linux-libre-3.4.53-gnu1/drivers/acpi/pci_root.c
--- linux-libre-3.4-gnu1/drivers/acpi/pci_root.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/pci_root.c	2013-07-13 14:03:57.000000000 -0400
@@ -247,8 +247,8 @@ static acpi_status acpi_pci_query_osc(st
 		*control &= OSC_PCI_CONTROL_MASKS;
 		capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set;
 	} else {
-		/* Run _OSC query for all possible controls. */
-		capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
+		/* Run _OSC query only with existing controls. */
+		capbuf[OSC_CONTROL_TYPE] = root->osc_control_set;
 	}
 
 	status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/power.c linux-libre-3.4.53-gnu1/drivers/acpi/power.c
--- linux-libre-3.4-gnu1/drivers/acpi/power.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/power.c	2013-07-13 14:03:57.000000000 -0400
@@ -103,6 +103,7 @@ struct acpi_power_resource {
 
 	/* List of devices relying on this power resource */
 	struct acpi_power_resource_device *devices;
+	struct mutex devices_lock;
 };
 
 static struct list_head acpi_power_resource_list;
@@ -221,7 +222,6 @@ static void acpi_power_on_device(struct
 
 static int __acpi_power_on(struct acpi_power_resource *resource)
 {
-	struct acpi_power_resource_device *device_list = resource->devices;
 	acpi_status status = AE_OK;
 
 	status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
@@ -234,19 +234,15 @@ static int __acpi_power_on(struct acpi_p
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
 			  resource->name));
 
-	while (device_list) {
-		acpi_power_on_device(device_list->device);
-
-		device_list = device_list->next;
-	}
-
 	return 0;
 }
 
 static int acpi_power_on(acpi_handle handle)
 {
 	int result = 0;
+	bool resume_device = false;
 	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource_device *device_list;
 
 	result = acpi_power_get_context(handle, &resource);
 	if (result)
@@ -262,10 +258,25 @@ static int acpi_power_on(acpi_handle han
 		result = __acpi_power_on(resource);
 		if (result)
 			resource->ref_count--;
+		else
+			resume_device = true;
 	}
 
 	mutex_unlock(&resource->resource_lock);
 
+	if (!resume_device)
+		return result;
+
+	mutex_lock(&resource->devices_lock);
+
+	device_list = resource->devices;
+	while (device_list) {
+		acpi_power_on_device(device_list->device);
+		device_list = device_list->next;
+	}
+
+	mutex_unlock(&resource->devices_lock);
+
 	return result;
 }
 
@@ -351,7 +362,7 @@ static void __acpi_power_resource_unregi
 	if (acpi_power_get_context(res_handle, &resource))
 		return;
 
-	mutex_lock(&resource->resource_lock);
+	mutex_lock(&resource->devices_lock);
 	prev = NULL;
 	curr = resource->devices;
 	while (curr) {
@@ -368,7 +379,7 @@ static void __acpi_power_resource_unregi
 		prev = curr;
 		curr = curr->next;
 	}
-	mutex_unlock(&resource->resource_lock);
+	mutex_unlock(&resource->devices_lock);
 }
 
 /* Unlink dev from all power resources in _PR0 */
@@ -409,10 +420,10 @@ static int __acpi_power_resource_registe
 
 	power_resource_device->device = powered_device;
 
-	mutex_lock(&resource->resource_lock);
+	mutex_lock(&resource->devices_lock);
 	power_resource_device->next = resource->devices;
 	resource->devices = power_resource_device;
-	mutex_unlock(&resource->resource_lock);
+	mutex_unlock(&resource->devices_lock);
 
 	return 0;
 }
@@ -457,7 +468,7 @@ int acpi_power_resource_register_device(
 	return ret;
 
 no_power_resource:
-	printk(KERN_WARNING PREFIX "Invalid Power Resource to register!");
+	printk(KERN_DEBUG PREFIX "Invalid Power Resource to register!");
 	return -ENODEV;
 }
 
@@ -715,6 +726,7 @@ static int acpi_power_add(struct acpi_de
 
 	resource->device = device;
 	mutex_init(&resource->resource_lock);
+	mutex_init(&resource->devices_lock);
 	strcpy(resource->name, device->pnp.bus_id);
 	strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
 	strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/processor_core.c linux-libre-3.4.53-gnu1/drivers/acpi/processor_core.c
--- linux-libre-3.4-gnu1/drivers/acpi/processor_core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/processor_core.c	2013-07-13 14:03:57.000000000 -0400
@@ -189,10 +189,12 @@ int acpi_get_cpuid(acpi_handle handle, i
 		 *     Processor (CPU3, 0x03, 0x00000410, 0x06) {}
 		 * }
 		 *
-		 * Ignores apic_id and always return 0 for CPU0's handle.
+		 * Ignores apic_id and always returns 0 for the processor
+		 * handle with acpi id 0 if nr_cpu_ids is 1.
+		 * This should be the case if SMP tables are not found.
 		 * Return -1 for other CPU's handle.
 		 */
-		if (acpi_id == 0)
+		if (nr_cpu_ids <= 1 && acpi_id == 0)
 			return acpi_id;
 		else
 			return apic_id;
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/processor_driver.c linux-libre-3.4.53-gnu1/drivers/acpi/processor_driver.c
--- linux-libre-3.4-gnu1/drivers/acpi/processor_driver.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/processor_driver.c	2013-07-13 14:03:57.000000000 -0400
@@ -407,6 +407,7 @@ static void acpi_processor_notify(struct
 		acpi_bus_generate_proc_event(device, event, 0);
 		acpi_bus_generate_netlink_event(device->pnp.device_class,
 						  dev_name(&device->dev), event, 0);
+		break;
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
@@ -442,7 +443,7 @@ static int acpi_cpu_soft_notify(struct n
 		/* Normal CPU soft online event */
 		} else {
 			acpi_processor_ppc_has_changed(pr, 0);
-			acpi_processor_cst_has_changed(pr);
+			acpi_processor_hotplug(pr);
 			acpi_processor_reevaluate_tstate(pr, action);
 			acpi_processor_tstate_has_changed(pr);
 		}
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/processor_idle.c linux-libre-3.4.53-gnu1/drivers/acpi/processor_idle.c
--- linux-libre-3.4-gnu1/drivers/acpi/processor_idle.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/processor_idle.c	2013-07-13 14:03:57.000000000 -0400
@@ -1018,6 +1018,9 @@ static int acpi_processor_setup_cpuidle_
 		return -EINVAL;
 	}
 
+	if (!dev)
+		return -EINVAL;
+
 	dev->cpu = pr->id;
 
 	if (max_cstate == 0)
@@ -1205,6 +1208,7 @@ int acpi_processor_cst_has_changed(struc
 		}
 
 		/* Populate Updated C-state information */
+		acpi_processor_get_power_info(pr);
 		acpi_processor_setup_cpuidle_states(pr);
 
 		/* Enable all cpuidle devices */
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/scan.c linux-libre-3.4.53-gnu1/drivers/acpi/scan.c
--- linux-libre-3.4-gnu1/drivers/acpi/scan.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/scan.c	2013-07-13 14:03:57.000000000 -0400
@@ -789,8 +789,8 @@ acpi_bus_extract_wakeup_device_power_pac
 static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
 {
 	struct acpi_device_id button_device_ids[] = {
-		{"PNP0C0D", 0},
 		{"PNP0C0C", 0},
+		{"PNP0C0D", 0},
 		{"PNP0C0E", 0},
 		{"", 0},
 	};
@@ -802,6 +802,11 @@ static void acpi_bus_set_run_wake_flags(
 	/* Power button, Lid switch always enable wakeup */
 	if (!acpi_match_device_ids(device, button_device_ids)) {
 		device->wakeup.flags.run_wake = 1;
+		if (!acpi_match_device_ids(device, &button_device_ids[1])) {
+			/* Do not use Lid/sleep button for S5 wakeup */
+			if (device->wakeup.sleep_state == ACPI_STATE_S5)
+				device->wakeup.sleep_state = ACPI_STATE_S4;
+		}
 		device_set_wakeup_capable(&device->dev, true);
 		return;
 	}
@@ -1157,7 +1162,7 @@ static void acpi_device_set_id(struct ac
 			acpi_add_id(device, ACPI_DOCK_HID);
 		else if (!acpi_ibm_smbus_match(device))
 			acpi_add_id(device, ACPI_SMBUS_IBM_HID);
-		else if (!acpi_device_hid(device) &&
+		else if (list_empty(&device->pnp.ids) &&
 			 ACPI_IS_ROOT_DEVICE(device->parent)) {
 			acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
 			strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/sleep.c linux-libre-3.4.53-gnu1/drivers/acpi/sleep.c
--- linux-libre-3.4-gnu1/drivers/acpi/sleep.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/sleep.c	2013-07-13 14:03:57.000000000 -0400
@@ -138,6 +138,188 @@ void __init acpi_old_suspend_ordering(vo
 	old_suspend_ordering = true;
 }
 
+static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
+{
+	acpi_old_suspend_ordering();
+	return 0;
+}
+
+static int __init init_nvs_nosave(const struct dmi_system_id *d)
+{
+	acpi_nvs_nosave();
+	return 0;
+}
+
+static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "Abit KN9 (nForce4 variant)",
+	.matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
+		DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
+		},
+	},
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "HP xw4600 Workstation",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
+		},
+	},
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "Asus Pundit P1-AH2 (M2N8L motherboard)",
+	.matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
+		DMI_MATCH(DMI_BOARD_NAME, "M2N8L"),
+		},
+	},
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "Panasonic CF51-2L",
+	.matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR,
+				"Matsushita Electric Industrial Co.,Ltd."),
+		DMI_MATCH(DMI_BOARD_NAME, "CF51-2L"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-FW41E_H",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW41E_H"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-FW21E",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW21E"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VPCEB17FX",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB17FX"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-SR11M",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR11M"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Everex StepNote Series",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Everex Systems, Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Everex StepNote Series"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VPCEB1Z1E",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-NW130D",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NW130D"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VPCCW29FX",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VPCCW29FX"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Averatec AV1020-ED2",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "1000 Series"),
+		},
+	},
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "Asus A8N-SLI DELUXE",
+	.matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		DMI_MATCH(DMI_BOARD_NAME, "A8N-SLI DELUXE"),
+		},
+	},
+	{
+	.callback = init_old_suspend_ordering,
+	.ident = "Asus A8N-SLI Premium",
+	.matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+		DMI_MATCH(DMI_BOARD_NAME, "A8N-SLI Premium"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-SR26GN_P",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR26GN_P"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VPCEB1S1E",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1S1E"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Sony Vaio VGN-FW520F",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW520F"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Asus K54C",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "K54C"),
+		},
+	},
+	{
+	.callback = init_nvs_nosave,
+	.ident = "Asus K54HR",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"),
+		},
+	},
+	{},
+};
+
+static void acpi_sleep_dmi_check(void)
+{
+	dmi_check_system(acpisleep_dmi_table);
+}
+
 /**
  * acpi_pm_freeze - Disable the GPEs and suspend EC transactions.
  */
@@ -227,6 +409,7 @@ static void acpi_pm_end(void)
 }
 #else /* !CONFIG_ACPI_SLEEP */
 #define acpi_target_sleep_state	ACPI_STATE_S0
+static inline void acpi_sleep_dmi_check(void) {}
 #endif /* CONFIG_ACPI_SLEEP */
 
 #ifdef CONFIG_SUSPEND
@@ -371,167 +554,6 @@ static const struct platform_suspend_ops
 	.end = acpi_pm_end,
 	.recover = acpi_pm_finish,
 };
-
-static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
-{
-	old_suspend_ordering = true;
-	return 0;
-}
-
-static int __init init_nvs_nosave(const struct dmi_system_id *d)
-{
-	acpi_nvs_nosave();
-	return 0;
-}
-
-static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "Abit KN9 (nForce4 variant)",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
-		DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
-		},
-	},
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "HP xw4600 Workstation",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
-		},
-	},
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "Asus Pundit P1-AH2 (M2N8L motherboard)",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
-		DMI_MATCH(DMI_BOARD_NAME, "M2N8L"),
-		},
-	},
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "Panasonic CF51-2L",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR,
-				"Matsushita Electric Industrial Co.,Ltd."),
-		DMI_MATCH(DMI_BOARD_NAME, "CF51-2L"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VGN-FW21E",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW21E"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VPCEB17FX",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB17FX"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VGN-SR11M",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR11M"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Everex StepNote Series",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Everex Systems, Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Everex StepNote Series"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VPCEB1Z1E",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VGN-NW130D",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NW130D"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VPCCW29FX",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VPCCW29FX"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Averatec AV1020-ED2",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "1000 Series"),
-		},
-	},
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "Asus A8N-SLI DELUXE",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-		DMI_MATCH(DMI_BOARD_NAME, "A8N-SLI DELUXE"),
-		},
-	},
-	{
-	.callback = init_old_suspend_ordering,
-	.ident = "Asus A8N-SLI Premium",
-	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-		DMI_MATCH(DMI_BOARD_NAME, "A8N-SLI Premium"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VGN-SR26GN_P",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR26GN_P"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Sony Vaio VGN-FW520F",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FW520F"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Asus K54C",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "K54C"),
-		},
-	},
-	{
-	.callback = init_nvs_nosave,
-	.ident = "Asus K54HR",
-	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "K54HR"),
-		},
-	},
-	{},
-};
 #endif /* CONFIG_SUSPEND */
 
 #ifdef CONFIG_HIBERNATION
@@ -732,8 +754,8 @@ int acpi_pm_device_sleep_state(struct de
 	 * can wake the system.  _S0W may be valid, too.
 	 */
 	if (acpi_target_sleep_state == ACPI_STATE_S0 ||
-	    (device_may_wakeup(dev) &&
-	     adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
+	    (device_may_wakeup(dev) && adev->wakeup.flags.valid &&
+	     adev->wakeup.sleep_state >= acpi_target_sleep_state)) {
 		acpi_status status;
 
 		acpi_method[3] = 'W';
@@ -872,13 +894,13 @@ int __init acpi_sleep_init(void)
 	u8 type_a, type_b;
 #ifdef CONFIG_SUSPEND
 	int i = 0;
-
-	dmi_check_system(acpisleep_dmi_table);
 #endif
 
 	if (acpi_disabled)
 		return 0;
 
+	acpi_sleep_dmi_check();
+
 	sleep_states[ACPI_STATE_S0] = 1;
 	printk(KERN_INFO PREFIX "(supports S0");
 
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/sysfs.c linux-libre-3.4.53-gnu1/drivers/acpi/sysfs.c
--- linux-libre-3.4-gnu1/drivers/acpi/sysfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/sysfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -173,7 +173,7 @@ static int param_set_trace_state(const c
 {
 	int result = 0;
 
-	if (!strncmp(val, "enable", strlen("enable") - 1)) {
+	if (!strncmp(val, "enable", strlen("enable"))) {
 		result = acpi_debug_trace(trace_method_name, trace_debug_level,
 					  trace_debug_layer, 0);
 		if (result)
@@ -181,7 +181,7 @@ static int param_set_trace_state(const c
 		goto exit;
 	}
 
-	if (!strncmp(val, "disable", strlen("disable") - 1)) {
+	if (!strncmp(val, "disable", strlen("disable"))) {
 		int name = 0;
 		result = acpi_debug_trace((char *)&name, trace_debug_level,
 					  trace_debug_layer, 0);
diff -druNp linux-libre-3.4-gnu1/drivers/acpi/video.c linux-libre-3.4.53-gnu1/drivers/acpi/video.c
--- linux-libre-3.4-gnu1/drivers/acpi/video.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/acpi/video.c	2013-07-13 14:03:57.000000000 -0400
@@ -389,6 +389,12 @@ static int __init video_set_bqc_offset(c
 	return 0;
 }
 
+static int video_ignore_initial_backlight(const struct dmi_system_id *d)
+{
+	use_bios_initial_backlight = 0;
+	return 0;
+}
+
 static struct dmi_system_id video_dmi_table[] __initdata = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
@@ -433,6 +439,30 @@ static struct dmi_system_id video_dmi_ta
 		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Folio 13-2000",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
+		},
+	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion g6 Notebook PC",
+	 .matches = {
+		 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
+		},
+	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion m4",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
+		},
+	},
 	{}
 };
 
@@ -558,6 +588,8 @@ acpi_video_bus_DOS(struct acpi_video_bus
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
+	if (!video->cap._DOS)
+		return 0;
 
 	if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1)
 		return -EINVAL;
@@ -1343,12 +1375,15 @@ static int
 acpi_video_bus_get_devices(struct acpi_video_bus *video,
 			   struct acpi_device *device)
 {
-	int status;
+	int status = 0;
 	struct acpi_device *dev;
 
-	status = acpi_video_device_enumerate(video);
-	if (status)
-		return status;
+	/*
+	 * There are systems where video module known to work fine regardless
+	 * of broken _DOD and ignoring returned value here doesn't cause
+	 * any issues later.
+	 */
+	acpi_video_device_enumerate(video);
 
 	list_for_each_entry(dev, &device->children, node) {
 
@@ -1745,6 +1780,7 @@ static int acpi_video_bus_remove(struct
 
 static int __init intel_opregion_present(void)
 {
+	int i915 = 0;
 #if defined(CONFIG_DRM_I915) || defined(CONFIG_DRM_I915_MODULE)
 	struct pci_dev *dev = NULL;
 	u32 address;
@@ -1757,10 +1793,10 @@ static int __init intel_opregion_present
 		pci_read_config_dword(dev, 0xfc, &address);
 		if (!address)
 			continue;
-		return 1;
+		i915 = 1;
 	}
 #endif
-	return 0;
+	return i915;
 }
 
 int acpi_video_register(void)
diff -druNp linux-libre-3.4-gnu1/drivers/ata/ahci.c linux-libre-3.4.53-gnu1/drivers/ata/ahci.c
--- linux-libre-3.4-gnu1/drivers/ata/ahci.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/ahci.c	2013-07-13 14:03:57.000000000 -0400
@@ -53,6 +53,7 @@
 
 enum {
 	AHCI_PCI_BAR_STA2X11	= 0,
+	AHCI_PCI_BAR_ENMOTUS	= 2,
 	AHCI_PCI_BAR_STANDARD	= 5,
 };
 
@@ -396,6 +397,8 @@ static const struct pci_device_id ahci_p
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9125 */
 	{ PCI_DEVICE(0x1b4b, 0x917a),
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 */
+	{ PCI_DEVICE(0x1b4b, 0x9192),
+	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
 	{ PCI_DEVICE(0x1b4b, 0x91a3),
 	  .driver_data = board_ahci_yes_fbs },
 
@@ -403,7 +406,13 @@ static const struct pci_device_id ahci_p
 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
 
 	/* Asmedia */
-	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1061 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci },	/* ASM1060 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0602), board_ahci },	/* ASM1060 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0611), board_ahci },	/* ASM1061 */
+	{ PCI_VDEVICE(ASMEDIA, 0x0612), board_ahci },	/* ASM1062 */
+
+	/* Enmotus */
+	{ PCI_DEVICE(0x1c44, 0x8000), board_ahci },
 
 	/* Generic, PCI class code for AHCI */
 	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -1077,9 +1086,11 @@ static int ahci_init_one(struct pci_dev
 		dev_info(&pdev->dev,
 			 "PDC42819 can only drive SATA devices with this driver\n");
 
-	/* The Connext uses non-standard BAR */
+	/* Both Connext and Enmotus devices use non-standard BARs */
 	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
 		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
+	else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
+		ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
 
 	/* acquire resources */
 	rc = pcim_enable_device(pdev);
diff -druNp linux-libre-3.4-gnu1/drivers/ata/ata_piix.c linux-libre-3.4.53-gnu1/drivers/ata/ata_piix.c
--- linux-libre-3.4-gnu1/drivers/ata/ata_piix.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/ata_piix.c	2013-07-13 14:03:57.000000000 -0400
@@ -150,6 +150,8 @@ enum piix_controller_ids {
 	tolapai_sata,
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
 	ich8_sata_snb,
+	ich8_2port_sata_snb,
+	ich8_2port_sata_byt,
 };
 
 struct piix_map_db {
@@ -326,11 +328,31 @@ static const struct pci_device_id piix_p
 	/* SATA Controller IDE (Lynx Point) */
 	{ 0x8086, 0x8c01, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
 	/* SATA Controller IDE (Lynx Point) */
-	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	{ 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
 	/* SATA Controller IDE (Lynx Point) */
 	{ 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (DH89xxCC) */
 	{ 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f30, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Avoton) */
+	{ 0x8086, 0x1f31, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
+	/* SATA Controller IDE (Wellsburg) */
+	{ 0x8086, 0x8d68, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (BayTrail) */
+	{ 0x8086, 0x0F20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
+	{ 0x8086, 0x0F21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
+
 	{ }	/* terminate list */
 };
 
@@ -494,6 +516,8 @@ static const struct piix_map_db *piix_ma
 	[ich8m_apple_sata]	= &ich8m_apple_map_db,
 	[tolapai_sata]		= &tolapai_map_db,
 	[ich8_sata_snb]		= &ich8_map_db,
+	[ich8_2port_sata_snb]	= &ich8_2port_map_db,
+	[ich8_2port_sata_byt]	= &ich8_2port_map_db,
 };
 
 static struct ata_port_info piix_port_info[] = {
@@ -635,6 +659,25 @@ static struct ata_port_info piix_port_in
 		.port_ops	= &piix_sata_ops,
 	},
 
+	[ich8_2port_sata_snb] =
+	{
+		.flags		= PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR
+					| PIIX_FLAG_PIO16,
+		.pio_mask	= ATA_PIO4,
+		.mwdma_mask	= ATA_MWDMA2,
+		.udma_mask	= ATA_UDMA6,
+		.port_ops	= &piix_sata_ops,
+	},
+
+	[ich8_2port_sata_byt] =
+	{
+		.flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16,
+		.pio_mask       = ATA_PIO4,
+		.mwdma_mask     = ATA_MWDMA2,
+		.udma_mask      = ATA_UDMA6,
+		.port_ops       = &piix_sata_ops,
+	},
+
 };
 
 static struct pci_bits piix_enable_bits[] = {
@@ -1554,6 +1597,58 @@ static bool piix_broken_system_poweroff(
 	return false;
 }
 
+static int prefer_ms_hyperv = 1;
+module_param(prefer_ms_hyperv, int, 0);
+
+static void piix_ignore_devices_quirk(struct ata_host *host)
+{
+#if IS_ENABLED(CONFIG_HYPERV_STORAGE)
+	static const struct dmi_system_id ignore_hyperv[] = {
+		{
+			/* On Hyper-V hypervisors the disks are exposed on
+			 * both the emulated SATA controller and on the
+			 * paravirtualised drivers.  The CD/DVD devices
+			 * are only exposed on the emulated controller.
+			 * Request we ignore ATA devices on this host.
+			 */
+			.ident = "Hyper-V Virtual Machine",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR,
+						"Microsoft Corporation"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+			},
+		},
+		{ }	/* terminate list */
+	};
+	static const struct dmi_system_id allow_virtual_pc[] = {
+		{
+			/* In MS Virtual PC guests the DMI ident is nearly
+			 * identical to a Hyper-V guest. One difference is the
+			 * product version which is used here to identify
+			 * a Virtual PC guest. This entry allows ata_piix to
+			 * drive the emulated hardware.
+			 */
+			.ident = "MS Virtual PC 2007",
+			.matches = {
+				DMI_MATCH(DMI_SYS_VENDOR,
+						"Microsoft Corporation"),
+				DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+				DMI_MATCH(DMI_PRODUCT_VERSION, "VS2005R2"),
+			},
+		},
+		{ }	/* terminate list */
+	};
+	const struct dmi_system_id *ignore = dmi_first_match(ignore_hyperv);
+	const struct dmi_system_id *allow = dmi_first_match(allow_virtual_pc);
+
+	if (ignore && !allow && prefer_ms_hyperv) {
+		host->flags |= ATA_HOST_IGNORE_ATA;
+		dev_info(host->dev, "%s detected, ATA device ignore set\n",
+			ignore->ident);
+	}
+#endif
+}
+
 /**
  *	piix_init_one - Register PIIX ATA PCI device with kernel services
  *	@pdev: PCI device to register
@@ -1669,6 +1764,9 @@ static int __devinit piix_init_one(struc
 	}
 	host->flags |= ATA_HOST_PARALLEL_SCAN;
 
+	/* Allow hosts to specify device types to ignore when scanning. */
+	piix_ignore_devices_quirk(host);
+
 	pci_set_master(pdev);
 	return ata_pci_sff_activate_host(host, ata_bmdma_interrupt, sht);
 }
diff -druNp linux-libre-3.4-gnu1/drivers/ata/libata-core.c linux-libre-3.4.53-gnu1/drivers/ata/libata-core.c
--- linux-libre-3.4-gnu1/drivers/ata/libata-core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/libata-core.c	2013-07-13 14:03:57.000000000 -0400
@@ -1599,6 +1599,12 @@ unsigned ata_exec_internal_sg(struct ata
 	qc->tf = *tf;
 	if (cdb)
 		memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
+
+	/* some SATA bridges need us to indicate data xfer direction */
+	if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) &&
+	    dma_dir == DMA_FROM_DEVICE)
+		qc->tf.feature |= ATAPI_DMADIR;
+
 	qc->flags |= ATA_QCFLAG_RESULT_TF;
 	qc->dma_dir = dma_dir;
 	if (dma_dir != DMA_NONE) {
@@ -1973,6 +1979,12 @@ retry:
 	if (class == ATA_DEV_ATA) {
 		if (!ata_id_is_ata(id) && !ata_id_is_cfa(id))
 			goto err_out;
+		if (ap->host->flags & ATA_HOST_IGNORE_ATA &&
+							ata_id_is_ata(id)) {
+			ata_dev_dbg(dev,
+				"host indicates ignore ATA devices, ignored\n");
+			return -ENOENT;
+		}
 	} else {
 		if (ata_id_is_ata(id))
 			goto err_out;
@@ -2402,6 +2414,9 @@ int ata_dev_configure(struct ata_device
 		dev->max_sectors = min_t(unsigned int, ATA_MAX_SECTORS_128,
 					 dev->max_sectors);
 
+	if (dev->horkage & ATA_HORKAGE_MAX_SEC_LBA48)
+		dev->max_sectors = ATA_MAX_SECTORS_LBA48;
+
 	if (ap->ops->dev_config)
 		ap->ops->dev_config(dev);
 
@@ -2530,6 +2545,7 @@ int ata_bus_probe(struct ata_port *ap)
 		 * bus as we may be talking too fast.
 		 */
 		dev->pio_mode = XFER_PIO_0;
+		dev->dma_mode = 0xff;
 
 		/* If the controller has a pio mode setup function
 		 * then use it to set the chipset to rights. Don't
@@ -4057,6 +4073,7 @@ static const struct ata_blacklist_entry
 	/* Weird ATAPI devices */
 	{ "TORiSAN DVD-ROM DRD-N216", NULL,	ATA_HORKAGE_MAX_SEC_128 },
 	{ "QUANTUM DAT    DAT72-000", NULL,	ATA_HORKAGE_ATAPI_MOD16_DMA },
+	{ "Slimtype DVD A  DS8A8SH", NULL,	ATA_HORKAGE_MAX_SEC_LBA48 },
 
 	/* Devices we expect to fail diagnostics */
 
@@ -4119,6 +4136,7 @@ static const struct ata_blacklist_entry
 
 	/* Devices which aren't very happy with higher link speeds */
 	{ "WD My Book",			NULL,	ATA_HORKAGE_1_5_GBPS, },
+	{ "Seagate FreeAgent GoFlex",	NULL,	ATA_HORKAGE_1_5_GBPS, },
 
 	/*
 	 * Devices which choke on SETXFER.  Applies only if both the
diff -druNp linux-libre-3.4-gnu1/drivers/ata/libata-eh.c linux-libre-3.4.53-gnu1/drivers/ata/libata-eh.c
--- linux-libre-3.4-gnu1/drivers/ata/libata-eh.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/libata-eh.c	2013-07-13 14:03:57.000000000 -0400
@@ -2600,6 +2600,7 @@ int ata_eh_reset(struct ata_link *link,
 		 * bus as we may be talking too fast.
 		 */
 		dev->pio_mode = XFER_PIO_0;
+		dev->dma_mode = 0xff;
 
 		/* If the controller has a pio mode setup function
 		 * then use it to set the chipset to rights. Don't
diff -druNp linux-libre-3.4-gnu1/drivers/ata/libata-scsi.c linux-libre-3.4.53-gnu1/drivers/ata/libata-scsi.c
--- linux-libre-3.4-gnu1/drivers/ata/libata-scsi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/libata-scsi.c	2013-07-13 14:03:57.000000000 -0400
@@ -309,7 +309,8 @@ ata_scsi_activity_show(struct device *de
 	struct ata_port *ap = ata_shost_to_port(sdev->host);
 	struct ata_device *atadev = ata_scsi_find_dev(ap, sdev);
 
-	if (ap->ops->sw_activity_show && (ap->flags & ATA_FLAG_SW_ACTIVITY))
+	if (atadev && ap->ops->sw_activity_show &&
+	    (ap->flags & ATA_FLAG_SW_ACTIVITY))
 		return ap->ops->sw_activity_show(atadev, buf);
 	return -EINVAL;
 }
@@ -324,7 +325,8 @@ ata_scsi_activity_store(struct device *d
 	enum sw_activity val;
 	int rc;
 
-	if (ap->ops->sw_activity_store && (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
+	if (atadev && ap->ops->sw_activity_store &&
+	    (ap->flags & ATA_FLAG_SW_ACTIVITY)) {
 		val = simple_strtoul(buf, NULL, 0);
 		switch (val) {
 		case OFF: case BLINK_ON: case BLINK_OFF:
diff -druNp linux-libre-3.4-gnu1/drivers/ata/sata_promise.c linux-libre-3.4.53-gnu1/drivers/ata/sata_promise.c
--- linux-libre-3.4-gnu1/drivers/ata/sata_promise.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/sata_promise.c	2013-07-13 14:03:57.000000000 -0400
@@ -147,6 +147,10 @@ struct pdc_port_priv {
 	dma_addr_t		pkt_dma;
 };
 
+struct pdc_host_priv {
+	spinlock_t hard_reset_lock;
+};
+
 static int pdc_sata_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
 static int pdc_sata_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
 static int pdc_ata_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
@@ -801,9 +805,10 @@ static void pdc_hard_reset_port(struct a
 	void __iomem *host_mmio = ap->host->iomap[PDC_MMIO_BAR];
 	void __iomem *pcictl_b1_mmio = host_mmio + PDC_PCI_CTL + 1;
 	unsigned int ata_no = pdc_ata_port_to_ata_no(ap);
+	struct pdc_host_priv *hpriv = ap->host->private_data;
 	u8 tmp;
 
-	spin_lock(&ap->host->lock);
+	spin_lock(&hpriv->hard_reset_lock);
 
 	tmp = readb(pcictl_b1_mmio);
 	tmp &= ~(0x10 << ata_no);
@@ -814,7 +819,7 @@ static void pdc_hard_reset_port(struct a
 	writeb(tmp, pcictl_b1_mmio);
 	readb(pcictl_b1_mmio); /* flush */
 
-	spin_unlock(&ap->host->lock);
+	spin_unlock(&hpriv->hard_reset_lock);
 }
 
 static int pdc_sata_hardreset(struct ata_link *link, unsigned int *class,
@@ -1182,6 +1187,7 @@ static int pdc_ata_init_one(struct pci_d
 	const struct ata_port_info *pi = &pdc_port_info[ent->driver_data];
 	const struct ata_port_info *ppi[PDC_MAX_PORTS];
 	struct ata_host *host;
+	struct pdc_host_priv *hpriv;
 	void __iomem *host_mmio;
 	int n_ports, i, rc;
 	int is_sataii_tx4;
@@ -1218,6 +1224,11 @@ static int pdc_ata_init_one(struct pci_d
 		dev_err(&pdev->dev, "failed to allocate host\n");
 		return -ENOMEM;
 	}
+	hpriv = devm_kzalloc(&pdev->dev, sizeof *hpriv, GFP_KERNEL);
+	if (!hpriv)
+		return -ENOMEM;
+	spin_lock_init(&hpriv->hard_reset_lock);
+	host->private_data = hpriv;
 	host->iomap = pcim_iomap_table(pdev);
 
 	is_sataii_tx4 = pdc_is_sataii_tx4(pi->flags);
diff -druNp linux-libre-3.4-gnu1/drivers/ata/sata_svw.c linux-libre-3.4.53-gnu1/drivers/ata/sata_svw.c
--- linux-libre-3.4-gnu1/drivers/ata/sata_svw.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/ata/sata_svw.c	2013-07-13 14:03:57.000000000 -0400
@@ -142,6 +142,39 @@ static int k2_sata_scr_write(struct ata_
 	return 0;
 }
 
+static int k2_sata_softreset(struct ata_link *link,
+			     unsigned int *class, unsigned long deadline)
+{
+	u8 dmactl;
+	void __iomem *mmio = link->ap->ioaddr.bmdma_addr;
+
+	dmactl = readb(mmio + ATA_DMA_CMD);
+
+	/* Clear the start bit */
+	if (dmactl & ATA_DMA_START) {
+		dmactl &= ~ATA_DMA_START;
+		writeb(dmactl, mmio + ATA_DMA_CMD);
+	}
+
+	return ata_sff_softreset(link, class, deadline);
+}
+
+static int k2_sata_hardreset(struct ata_link *link,
+			     unsigned int *class, unsigned long deadline)
+{
+	u8 dmactl;
+	void __iomem *mmio = link->ap->ioaddr.bmdma_addr;
+
+	dmactl = readb(mmio + ATA_DMA_CMD);
+
+	/* Clear the start bit */
+	if (dmactl & ATA_DMA_START) {
+		dmactl &= ~ATA_DMA_START;
+		writeb(dmactl, mmio + ATA_DMA_CMD);
+	}
+
+	return sata_sff_hardreset(link, class, deadline);
+}
 
 static void k2_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
 {
@@ -346,6 +379,8 @@ static struct scsi_host_template k2_sata
 
 static struct ata_port_operations k2_sata_ops = {
 	.inherits		= &ata_bmdma_port_ops,
+	.softreset              = k2_sata_softreset,
+	.hardreset              = k2_sata_hardreset,
 	.sff_tf_load		= k2_sata_tf_load,
 	.sff_tf_read		= k2_sata_tf_read,
 	.sff_check_status	= k2_stat_check_status,
diff -druNp linux-libre-3.4-gnu1/drivers/atm/iphase.h linux-libre-3.4.53-gnu1/drivers/atm/iphase.h
--- linux-libre-3.4-gnu1/drivers/atm/iphase.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/atm/iphase.h	2013-07-13 14:03:57.000000000 -0400
@@ -636,82 +636,82 @@ struct rx_buf_desc {
 #define SEG_BASE IPHASE5575_FRAG_CONTROL_REG_BASE  
 #define REASS_BASE IPHASE5575_REASS_CONTROL_REG_BASE  
 
-typedef volatile u_int  freg_t;
+typedef volatile u_int	ffreg_t;
 typedef u_int   rreg_t;
 
 typedef struct _ffredn_t {
-        freg_t  idlehead_high;  /* Idle cell header (high)              */
-        freg_t  idlehead_low;   /* Idle cell header (low)               */
-        freg_t  maxrate;        /* Maximum rate                         */
-        freg_t  stparms;        /* Traffic Management Parameters        */
-        freg_t  abrubr_abr;     /* ABRUBR Priority Byte 1, TCR Byte 0   */
-        freg_t  rm_type;        /*                                      */
-        u_int   filler5[0x17 - 0x06];
-        freg_t  cmd_reg;        /* Command register                     */
-        u_int   filler18[0x20 - 0x18];
-        freg_t  cbr_base;       /* CBR Pointer Base                     */
-        freg_t  vbr_base;       /* VBR Pointer Base                     */
-        freg_t  abr_base;       /* ABR Pointer Base                     */
-        freg_t  ubr_base;       /* UBR Pointer Base                     */
-        u_int   filler24;
-        freg_t  vbrwq_base;     /* VBR Wait Queue Base                  */
-        freg_t  abrwq_base;     /* ABR Wait Queue Base                  */
-        freg_t  ubrwq_base;     /* UBR Wait Queue Base                  */
-        freg_t  vct_base;       /* Main VC Table Base                   */
-        freg_t  vcte_base;      /* Extended Main VC Table Base          */
-        u_int   filler2a[0x2C - 0x2A];
-        freg_t  cbr_tab_beg;    /* CBR Table Begin                      */
-        freg_t  cbr_tab_end;    /* CBR Table End                        */
-        freg_t  cbr_pointer;    /* CBR Pointer                          */
-        u_int   filler2f[0x30 - 0x2F];
-        freg_t  prq_st_adr;     /* Packet Ready Queue Start Address     */
-        freg_t  prq_ed_adr;     /* Packet Ready Queue End Address       */
-        freg_t  prq_rd_ptr;     /* Packet Ready Queue read pointer      */
-        freg_t  prq_wr_ptr;     /* Packet Ready Queue write pointer     */
-        freg_t  tcq_st_adr;     /* Transmit Complete Queue Start Address*/
-        freg_t  tcq_ed_adr;     /* Transmit Complete Queue End Address  */
-        freg_t  tcq_rd_ptr;     /* Transmit Complete Queue read pointer */
-        freg_t  tcq_wr_ptr;     /* Transmit Complete Queue write pointer*/
-        u_int   filler38[0x40 - 0x38];
-        freg_t  queue_base;     /* Base address for PRQ and TCQ         */
-        freg_t  desc_base;      /* Base address of descriptor table     */
-        u_int   filler42[0x45 - 0x42];
-        freg_t  mode_reg_0;     /* Mode register 0                      */
-        freg_t  mode_reg_1;     /* Mode register 1                      */
-        freg_t  intr_status_reg;/* Interrupt Status register            */
-        freg_t  mask_reg;       /* Mask Register                        */
-        freg_t  cell_ctr_high1; /* Total cell transfer count (high)     */
-        freg_t  cell_ctr_lo1;   /* Total cell transfer count (low)      */
-        freg_t  state_reg;      /* Status register                      */
-        u_int   filler4c[0x58 - 0x4c];
-        freg_t  curr_desc_num;  /* Contains the current descriptor num  */
-        freg_t  next_desc;      /* Next descriptor                      */
-        freg_t  next_vc;        /* Next VC                              */
-        u_int   filler5b[0x5d - 0x5b];
-        freg_t  present_slot_cnt;/* Present slot count                  */
-        u_int   filler5e[0x6a - 0x5e];
-        freg_t  new_desc_num;   /* New descriptor number                */
-        freg_t  new_vc;         /* New VC                               */
-        freg_t  sched_tbl_ptr;  /* Schedule table pointer               */
-        freg_t  vbrwq_wptr;     /* VBR wait queue write pointer         */
-        freg_t  vbrwq_rptr;     /* VBR wait queue read pointer          */
-        freg_t  abrwq_wptr;     /* ABR wait queue write pointer         */
-        freg_t  abrwq_rptr;     /* ABR wait queue read pointer          */
-        freg_t  ubrwq_wptr;     /* UBR wait queue write pointer         */
-        freg_t  ubrwq_rptr;     /* UBR wait queue read pointer          */
-        freg_t  cbr_vc;         /* CBR VC                               */
-        freg_t  vbr_sb_vc;      /* VBR SB VC                            */
-        freg_t  abr_sb_vc;      /* ABR SB VC                            */
-        freg_t  ubr_sb_vc;      /* UBR SB VC                            */
-        freg_t  vbr_next_link;  /* VBR next link                        */
-        freg_t  abr_next_link;  /* ABR next link                        */
-        freg_t  ubr_next_link;  /* UBR next link                        */
-        u_int   filler7a[0x7c-0x7a];
-        freg_t  out_rate_head;  /* Out of rate head                     */
-        u_int   filler7d[0xca-0x7d]; /* pad out to full address space   */
-        freg_t  cell_ctr_high1_nc;/* Total cell transfer count (high)   */
-        freg_t  cell_ctr_lo1_nc;/* Total cell transfer count (low)      */
-        u_int   fillercc[0x100-0xcc]; /* pad out to full address space   */
+	ffreg_t	idlehead_high;	/* Idle cell header (high)		*/
+	ffreg_t	idlehead_low;	/* Idle cell header (low)		*/
+	ffreg_t	maxrate;	/* Maximum rate				*/
+	ffreg_t	stparms;	/* Traffic Management Parameters	*/
+	ffreg_t	abrubr_abr;	/* ABRUBR Priority Byte 1, TCR Byte 0	*/
+	ffreg_t	rm_type;	/*					*/
+	u_int	filler5[0x17 - 0x06];
+	ffreg_t	cmd_reg;	/* Command register			*/
+	u_int	filler18[0x20 - 0x18];
+	ffreg_t	cbr_base;	/* CBR Pointer Base			*/
+	ffreg_t	vbr_base;	/* VBR Pointer Base			*/
+	ffreg_t	abr_base;	/* ABR Pointer Base			*/
+	ffreg_t	ubr_base;	/* UBR Pointer Base			*/
+	u_int	filler24;
+	ffreg_t	vbrwq_base;	/* VBR Wait Queue Base			*/
+	ffreg_t	abrwq_base;	/* ABR Wait Queue Base			*/
+	ffreg_t	ubrwq_base;	/* UBR Wait Queue Base			*/
+	ffreg_t	vct_base;	/* Main VC Table Base			*/
+	ffreg_t	vcte_base;	/* Extended Main VC Table Base		*/
+	u_int	filler2a[0x2C - 0x2A];
+	ffreg_t	cbr_tab_beg;	/* CBR Table Begin			*/
+	ffreg_t	cbr_tab_end;	/* CBR Table End			*/
+	ffreg_t	cbr_pointer;	/* CBR Pointer				*/
+	u_int	filler2f[0x30 - 0x2F];
+	ffreg_t	prq_st_adr;	/* Packet Ready Queue Start Address	*/
+	ffreg_t	prq_ed_adr;	/* Packet Ready Queue End Address	*/
+	ffreg_t	prq_rd_ptr;	/* Packet Ready Queue read pointer	*/
+	ffreg_t	prq_wr_ptr;	/* Packet Ready Queue write pointer	*/
+	ffreg_t	tcq_st_adr;	/* Transmit Complete Queue Start Address*/
+	ffreg_t	tcq_ed_adr;	/* Transmit Complete Queue End Address	*/
+	ffreg_t	tcq_rd_ptr;	/* Transmit Complete Queue read pointer */
+	ffreg_t	tcq_wr_ptr;	/* Transmit Complete Queue write pointer*/
+	u_int	filler38[0x40 - 0x38];
+	ffreg_t	queue_base;	/* Base address for PRQ and TCQ		*/
+	ffreg_t	desc_base;	/* Base address of descriptor table	*/
+	u_int	filler42[0x45 - 0x42];
+	ffreg_t	mode_reg_0;	/* Mode register 0			*/
+	ffreg_t	mode_reg_1;	/* Mode register 1			*/
+	ffreg_t	intr_status_reg;/* Interrupt Status register		*/
+	ffreg_t	mask_reg;	/* Mask Register			*/
+	ffreg_t	cell_ctr_high1; /* Total cell transfer count (high)	*/
+	ffreg_t	cell_ctr_lo1;	/* Total cell transfer count (low)	*/
+	ffreg_t	state_reg;	/* Status register			*/
+	u_int	filler4c[0x58 - 0x4c];
+	ffreg_t	curr_desc_num;	/* Contains the current descriptor num	*/
+	ffreg_t	next_desc;	/* Next descriptor			*/
+	ffreg_t	next_vc;	/* Next VC				*/
+	u_int	filler5b[0x5d - 0x5b];
+	ffreg_t	present_slot_cnt;/* Present slot count			*/
+	u_int	filler5e[0x6a - 0x5e];
+	ffreg_t	new_desc_num;	/* New descriptor number		*/
+	ffreg_t	new_vc;		/* New VC				*/
+	ffreg_t	sched_tbl_ptr;	/* Schedule table pointer		*/
+	ffreg_t	vbrwq_wptr;	/* VBR wait queue write pointer		*/
+	ffreg_t	vbrwq_rptr;	/* VBR wait queue read pointer		*/
+	ffreg_t	abrwq_wptr;	/* ABR wait queue write pointer		*/
+	ffreg_t	abrwq_rptr;	/* ABR wait queue read pointer		*/
+	ffreg_t	ubrwq_wptr;	/* UBR wait queue write pointer		*/
+	ffreg_t	ubrwq_rptr;	/* UBR wait queue read pointer		*/
+	ffreg_t	cbr_vc;		/* CBR VC				*/
+	ffreg_t	vbr_sb_vc;	/* VBR SB VC				*/
+	ffreg_t	abr_sb_vc;	/* ABR SB VC				*/
+	ffreg_t	ubr_sb_vc;	/* UBR SB VC				*/
+	ffreg_t	vbr_next_link;	/* VBR next link			*/
+	ffreg_t	abr_next_link;	/* ABR next link			*/
+	ffreg_t	ubr_next_link;	/* UBR next link			*/
+	u_int	filler7a[0x7c-0x7a];
+	ffreg_t	out_rate_head;	/* Out of rate head			*/
+	u_int	filler7d[0xca-0x7d]; /* pad out to full address space	*/
+	ffreg_t	cell_ctr_high1_nc;/* Total cell transfer count (high)	*/
+	ffreg_t	cell_ctr_lo1_nc;/* Total cell transfer count (low)	*/
+	u_int	fillercc[0x100-0xcc]; /* pad out to full address space	 */
 } ffredn_t;
 
 typedef struct _rfredn_t {
diff -druNp linux-libre-3.4-gnu1/drivers/atm/solos-pci.c linux-libre-3.4.53-gnu1/drivers/atm/solos-pci.c
--- linux-libre-3.4-gnu1/drivers/atm/solos-pci.c	2013-05-01 21:50:00.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/atm/solos-pci.c	2013-07-13 18:19:26.000000000 -0400
@@ -965,10 +965,11 @@ static uint32_t fpga_tx(struct solos_car
 	for (port = 0; tx_pending; tx_pending >>= 1, port++) {
 		if (tx_pending & 1) {
 			struct sk_buff *oldskb = card->tx_skb[port];
-			if (oldskb)
+			if (oldskb) {
 				pci_unmap_single(card->dev, SKB_CB(oldskb)->dma_addr,
 						 oldskb->len, PCI_DMA_TODEVICE);
-
+				card->tx_skb[port] = NULL;
+			}
 			spin_lock(&card->tx_queue_lock);
 			skb = skb_dequeue(&card->tx_queue[port]);
 			if (!skb)
@@ -982,6 +983,7 @@ static uint32_t fpga_tx(struct solos_car
 			} else if (skb && card->using_dma) {
 				SKB_CB(skb)->dma_addr = pci_map_single(card->dev, skb->data,
 								       skb->len, PCI_DMA_TODEVICE);
+				card->tx_skb[port] = skb;
 				iowrite32(SKB_CB(skb)->dma_addr,
 					  card->config_regs + TX_DMA_ADDR(port));
 			}
@@ -1150,7 +1152,8 @@ static int fpga_probe(struct pci_dev *de
 		db_fpga_upgrade = db_firmware_upgrade = 0;
 	}
 
-	if (card->fpga_version >= DMA_SUPPORTED){
+	if (card->fpga_version >= DMA_SUPPORTED) {
+		pci_set_master(dev);
 		card->using_dma = 1;
 	} else {
 		card->using_dma = 0;
diff -druNp linux-libre-3.4-gnu1/drivers/base/bus.c linux-libre-3.4.53-gnu1/drivers/base/bus.c
--- linux-libre-3.4-gnu1/drivers/base/bus.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/bus.c	2013-07-13 14:03:57.000000000 -0400
@@ -294,7 +294,7 @@ int bus_for_each_dev(struct bus_type *bu
 	struct device *dev;
 	int error = 0;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return -EINVAL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
@@ -328,7 +328,7 @@ struct device *bus_find_device(struct bu
 	struct klist_iter i;
 	struct device *dev;
 
-	if (!bus)
+	if (!bus || !bus->p)
 		return NULL;
 
 	klist_iter_init_node(&bus->p->klist_devices, &i,
diff -druNp linux-libre-3.4-gnu1/drivers/base/dd.c linux-libre-3.4.53-gnu1/drivers/base/dd.c
--- linux-libre-3.4-gnu1/drivers/base/dd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/dd.c	2013-07-13 14:03:57.000000000 -0400
@@ -160,6 +160,8 @@ static int deferred_probe_initcall(void)
 
 	driver_deferred_probe_enable = true;
 	driver_deferred_probe_trigger();
+	/* Sort as many dependencies as possible before exiting initcalls */
+	flush_workqueue(deferred_wq);
 	return 0;
 }
 late_initcall(deferred_probe_initcall);
diff -druNp linux-libre-3.4-gnu1/drivers/base/power/main.c linux-libre-3.4.53-gnu1/drivers/base/power/main.c
--- linux-libre-3.4-gnu1/drivers/base/power/main.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/power/main.c	2013-07-13 14:03:57.000000000 -0400
@@ -979,8 +979,16 @@ static int dpm_suspend_late(pm_message_t
 int dpm_suspend_end(pm_message_t state)
 {
 	int error = dpm_suspend_late(state);
+	if (error)
+		return error;
 
-	return error ? : dpm_suspend_noirq(state);
+	error = dpm_suspend_noirq(state);
+	if (error) {
+		dpm_resume_early(resume_event(state));
+		return error;
+	}
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(dpm_suspend_end);
 
@@ -1021,7 +1029,7 @@ static int __device_suspend(struct devic
 	dpm_wait_for_children(dev, async);
 
 	if (async_error)
-		return 0;
+		goto Complete;
 
 	pm_runtime_get_noresume(dev);
 	if (pm_runtime_barrier(dev) && device_may_wakeup(dev))
@@ -1030,7 +1038,7 @@ static int __device_suspend(struct devic
 	if (pm_wakeup_pending()) {
 		pm_runtime_put_sync(dev);
 		async_error = -EBUSY;
-		return 0;
+		goto Complete;
 	}
 
 	device_lock(dev);
@@ -1087,6 +1095,8 @@ static int __device_suspend(struct devic
 	}
 
 	device_unlock(dev);
+
+ Complete:
 	complete_all(&dev->power.completion);
 
 	if (error) {
diff -druNp linux-libre-3.4-gnu1/drivers/base/power/qos.c linux-libre-3.4.53-gnu1/drivers/base/power/qos.c
--- linux-libre-3.4-gnu1/drivers/base/power/qos.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/power/qos.c	2013-07-13 14:03:57.000000000 -0400
@@ -446,7 +446,7 @@ int dev_pm_qos_add_ancestor_request(stru
 	if (ancestor)
 		error = dev_pm_qos_add_request(ancestor, req, value);
 
-	if (error)
+	if (error < 0)
 		req->dev = NULL;
 
 	return error;
diff -druNp linux-libre-3.4-gnu1/drivers/base/power/runtime.c linux-libre-3.4.53-gnu1/drivers/base/power/runtime.c
--- linux-libre-3.4-gnu1/drivers/base/power/runtime.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/power/runtime.c	2013-07-13 14:03:57.000000000 -0400
@@ -430,7 +430,6 @@ static int rpm_suspend(struct device *de
 		goto repeat;
 	}
 
-	dev->power.deferred_resume = false;
 	if (dev->power.no_callbacks)
 		goto no_callback;	/* Assume success. */
 
@@ -506,6 +505,7 @@ static int rpm_suspend(struct device *de
 	wake_up_all(&dev->power.wait_queue);
 
 	if (dev->power.deferred_resume) {
+		dev->power.deferred_resume = false;
 		rpm_resume(dev, 0);
 		retval = -EAGAIN;
 		goto out;
@@ -652,6 +652,7 @@ static int rpm_resume(struct device *dev
 		    || dev->parent->power.runtime_status == RPM_ACTIVE) {
 			atomic_inc(&dev->parent->power.child_count);
 			spin_unlock(&dev->parent->power.lock);
+			retval = 1;
 			goto no_callback;	/* Assume success. */
 		}
 		spin_unlock(&dev->parent->power.lock);
@@ -735,7 +736,7 @@ static int rpm_resume(struct device *dev
 	}
 	wake_up_all(&dev->power.wait_queue);
 
-	if (!retval)
+	if (retval >= 0)
 		rpm_idle(dev, RPM_ASYNC);
 
  out:
diff -druNp linux-libre-3.4-gnu1/drivers/base/regmap/regcache-rbtree.c linux-libre-3.4.53-gnu1/drivers/base/regmap/regcache-rbtree.c
--- linux-libre-3.4-gnu1/drivers/base/regmap/regcache-rbtree.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/regmap/regcache-rbtree.c	2013-07-13 14:03:57.000000000 -0400
@@ -392,7 +392,7 @@ static int regcache_rbtree_sync(struct r
 			base = 0;
 
 		if (max < rbnode->base_reg + rbnode->blklen)
-			end = rbnode->base_reg + rbnode->blklen - max;
+			end = max - rbnode->base_reg + 1;
 		else
 			end = rbnode->blklen;
 
diff -druNp linux-libre-3.4-gnu1/drivers/base/regmap/regmap-debugfs.c linux-libre-3.4.53-gnu1/drivers/base/regmap/regmap-debugfs.c
--- linux-libre-3.4-gnu1/drivers/base/regmap/regmap-debugfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/base/regmap/regmap-debugfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -90,7 +90,7 @@ static ssize_t regmap_map_read_file(stru
 		/* If we're in the region the user is trying to read */
 		if (p >= *ppos) {
 			/* ...but not beyond it */
-			if (buf_pos >= count - 1 - tot_len)
+			if (buf_pos + 1 + tot_len >= count)
 				break;
 
 			/* Format the register */
diff -druNp linux-libre-3.4-gnu1/drivers/bcma/driver_chipcommon_pmu.c linux-libre-3.4.53-gnu1/drivers/bcma/driver_chipcommon_pmu.c
--- linux-libre-3.4-gnu1/drivers/bcma/driver_chipcommon_pmu.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bcma/driver_chipcommon_pmu.c	2013-07-13 14:03:57.000000000 -0400
@@ -139,7 +139,9 @@ void bcma_pmu_workarounds(struct bcma_dr
 		bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
 		break;
 	case 0x4331:
-		/* BCM4331 workaround is SPROM-related, we put it in sprom.c */
+	case 43431:
+		/* Ext PA lines must be enabled for tx on BCM4331 */
+		bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
 		break;
 	case 43224:
 		if (bus->chipinfo.rev == 0) {
diff -druNp linux-libre-3.4-gnu1/drivers/bcma/driver_mips.c linux-libre-3.4.53-gnu1/drivers/bcma/driver_mips.c
--- linux-libre-3.4-gnu1/drivers/bcma/driver_mips.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bcma/driver_mips.c	2013-07-13 14:03:57.000000000 -0400
@@ -115,7 +115,7 @@ static void bcma_core_mips_set_irq(struc
 			    bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) &
 			    ~(1 << irqflag));
 	else
-		bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), 0);
+		bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(oldirq), 0);
 
 	/* assign the new one */
 	if (irq == 0) {
diff -druNp linux-libre-3.4-gnu1/drivers/bcma/main.c linux-libre-3.4.53-gnu1/drivers/bcma/main.c
--- linux-libre-3.4-gnu1/drivers/bcma/main.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bcma/main.c	2013-07-13 14:03:57.000000000 -0400
@@ -131,9 +131,10 @@ static int bcma_register_cores(struct bc
 
 static void bcma_unregister_cores(struct bcma_bus *bus)
 {
-	struct bcma_device *core;
+	struct bcma_device *core, *tmp;
 
-	list_for_each_entry(core, &bus->cores, list) {
+	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
+		list_del(&core->list);
 		if (core->dev_registered)
 			device_unregister(&core->dev);
 	}
diff -druNp linux-libre-3.4-gnu1/drivers/bcma/sprom.c linux-libre-3.4.53-gnu1/drivers/bcma/sprom.c
--- linux-libre-3.4-gnu1/drivers/bcma/sprom.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bcma/sprom.c	2013-07-13 14:03:57.000000000 -0400
@@ -432,13 +432,13 @@ int bcma_sprom_get(struct bcma_bus *bus)
 	if (!sprom)
 		return -ENOMEM;
 
-	if (bus->chipinfo.id == 0x4331)
+	if (bus->chipinfo.id == 0x4331 || bus->chipinfo.id == 43431)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false);
 
 	pr_debug("SPROM offset 0x%x\n", offset);
 	bcma_sprom_read(bus, offset, sprom);
 
-	if (bus->chipinfo.id == 0x4331)
+	if (bus->chipinfo.id == 0x4331 || bus->chipinfo.id == 43431)
 		bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
 
 	err = bcma_sprom_valid(sprom);
diff -druNp linux-libre-3.4-gnu1/drivers/block/aoe/aoeblk.c linux-libre-3.4.53-gnu1/drivers/block/aoe/aoeblk.c
--- linux-libre-3.4-gnu1/drivers/block/aoe/aoeblk.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/aoe/aoeblk.c	2013-07-13 14:03:57.000000000 -0400
@@ -276,8 +276,6 @@ aoeblk_gdalloc(void *vp)
 		goto err_mempool;
 	blk_queue_make_request(d->blkq, aoeblk_make_request);
 	d->blkq->backing_dev_info.name = "aoe";
-	if (bdi_init(&d->blkq->backing_dev_info))
-		goto err_blkq;
 	spin_lock_irqsave(&d->lock, flags);
 	gd->major = AOE_MAJOR;
 	gd->first_minor = d->sysminor * AOE_PARTITIONS;
@@ -298,9 +296,6 @@ aoeblk_gdalloc(void *vp)
 	aoedisk_add_sysfs(d);
 	return;
 
-err_blkq:
-	blk_cleanup_queue(d->blkq);
-	d->blkq = NULL;
 err_mempool:
 	mempool_destroy(d->bufpool);
 err_disk:
diff -druNp linux-libre-3.4-gnu1/drivers/block/aoe/aoecmd.c linux-libre-3.4.53-gnu1/drivers/block/aoe/aoecmd.c
--- linux-libre-3.4-gnu1/drivers/block/aoe/aoecmd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/aoe/aoecmd.c	2013-07-13 14:03:57.000000000 -0400
@@ -30,11 +30,13 @@ new_skb(ulong len)
 {
 	struct sk_buff *skb;
 
-	skb = alloc_skb(len, GFP_ATOMIC);
+	skb = alloc_skb(len + MAX_HEADER, GFP_ATOMIC);
 	if (skb) {
+		skb_reserve(skb, MAX_HEADER);
 		skb_reset_mac_header(skb);
 		skb_reset_network_header(skb);
 		skb->protocol = __constant_htons(ETH_P_AOE);
+		skb_checksum_none_assert(skb);
 	}
 	return skb;
 }
diff -druNp linux-libre-3.4-gnu1/drivers/block/aoe/aoe.h linux-libre-3.4.53-gnu1/drivers/block/aoe/aoe.h
--- linux-libre-3.4-gnu1/drivers/block/aoe/aoe.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/aoe/aoe.h	2013-07-13 14:03:57.000000000 -0400
@@ -1,5 +1,5 @@
 /* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
-#define VERSION "47"
+#define VERSION "47q"
 #define AOE_MAJOR 152
 #define DEVICE_NAME "aoe"
 
diff -druNp linux-libre-3.4-gnu1/drivers/block/brd.c linux-libre-3.4.53-gnu1/drivers/block/brd.c
--- linux-libre-3.4-gnu1/drivers/block/brd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/brd.c	2013-07-13 14:03:57.000000000 -0400
@@ -117,13 +117,13 @@ static struct page *brd_insert_page(stru
 
 	spin_lock(&brd->brd_lock);
 	idx = sector >> PAGE_SECTORS_SHIFT;
+	page->index = idx;
 	if (radix_tree_insert(&brd->brd_pages, idx, page)) {
 		__free_page(page);
 		page = radix_tree_lookup(&brd->brd_pages, idx);
 		BUG_ON(!page);
 		BUG_ON(page->index != idx);
-	} else
-		page->index = idx;
+	}
 	spin_unlock(&brd->brd_lock);
 
 	radix_tree_preload_end();
diff -druNp linux-libre-3.4-gnu1/drivers/block/cciss.c linux-libre-3.4.53-gnu1/drivers/block/cciss.c
--- linux-libre-3.4-gnu1/drivers/block/cciss.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/cciss.c	2013-07-13 14:03:57.000000000 -0400
@@ -161,8 +161,6 @@ static irqreturn_t do_cciss_msix_intr(in
 static int cciss_open(struct block_device *bdev, fmode_t mode);
 static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode);
 static int cciss_release(struct gendisk *disk, fmode_t mode);
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned int cmd, unsigned long arg);
 static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
 		       unsigned int cmd, unsigned long arg);
 static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
@@ -229,7 +227,7 @@ static const struct block_device_operati
 	.owner = THIS_MODULE,
 	.open = cciss_unlocked_open,
 	.release = cciss_release,
-	.ioctl = do_ioctl,
+	.ioctl = cciss_ioctl,
 	.getgeo = cciss_getgeo,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = cciss_compat_ioctl,
@@ -1140,16 +1138,6 @@ static int cciss_release(struct gendisk
 	return 0;
 }
 
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned cmd, unsigned long arg)
-{
-	int ret;
-	mutex_lock(&cciss_mutex);
-	ret = cciss_ioctl(bdev, mode, cmd, arg);
-	mutex_unlock(&cciss_mutex);
-	return ret;
-}
-
 #ifdef CONFIG_COMPAT
 
 static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
@@ -1176,7 +1164,7 @@ static int cciss_compat_ioctl(struct blo
 	case CCISS_REGNEWD:
 	case CCISS_RESCANDISK:
 	case CCISS_GETLUNINFO:
-		return do_ioctl(bdev, mode, cmd, arg);
+		return cciss_ioctl(bdev, mode, cmd, arg);
 
 	case CCISS_PASSTHRU32:
 		return cciss_ioctl32_passthru(bdev, mode, cmd, arg);
@@ -1216,7 +1204,7 @@ static int cciss_ioctl32_passthru(struct
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1258,7 +1246,7 @@ static int cciss_ioctl32_big_passthru(st
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1308,11 +1296,14 @@ static int cciss_getpciinfo(ctlr_info_t
 static int cciss_getintinfo(ctlr_info_t *h, void __user *argp)
 {
 	cciss_coalint_struct intinfo;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	intinfo.delay = readl(&h->cfgtable->HostWrite.CoalIntDelay);
 	intinfo.count = readl(&h->cfgtable->HostWrite.CoalIntCount);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user
 	    (argp, &intinfo, sizeof(cciss_coalint_struct)))
 		return -EFAULT;
@@ -1353,12 +1344,15 @@ static int cciss_setintinfo(ctlr_info_t
 static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
 {
 	NodeName_type NodeName;
+	unsigned long flags;
 	int i;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	for (i = 0; i < 16; i++)
 		NodeName[i] = readb(&h->cfgtable->ServerName[i]);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
 		return -EFAULT;
 	return 0;
@@ -1395,10 +1389,13 @@ static int cciss_setnodename(ctlr_info_t
 static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
 {
 	Heartbeat_type heartbeat;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	heartbeat = readl(&h->cfgtable->HeartBeat);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &heartbeat, sizeof(Heartbeat_type)))
 		return -EFAULT;
 	return 0;
@@ -1407,10 +1404,13 @@ static int cciss_getheartbeat(ctlr_info_
 static int cciss_getbustypes(ctlr_info_t *h, void __user *argp)
 {
 	BusTypes_type BusTypes;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	BusTypes = readl(&h->cfgtable->BusTypes);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &BusTypes, sizeof(BusTypes_type)))
 		return -EFAULT;
 	return 0;
diff -druNp linux-libre-3.4-gnu1/drivers/block/cciss_scsi.c linux-libre-3.4.53-gnu1/drivers/block/cciss_scsi.c
--- linux-libre-3.4-gnu1/drivers/block/cciss_scsi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/cciss_scsi.c	2013-07-13 14:03:57.000000000 -0400
@@ -763,16 +763,7 @@ static void complete_scsi_command(Comman
 		{
 			case CMD_TARGET_STATUS:
 				/* Pass it up to the upper layers... */
-				if( ei->ScsiStatus)
-                		{
-#if 0
-                    			printk(KERN_WARNING "cciss: cmd %p "
-						"has SCSI Status = %x\n",
-						c, ei->ScsiStatus);
-#endif
-					cmd->result |= (ei->ScsiStatus << 1);
-                		}
-				else {  /* scsi status is zero??? How??? */
+				if (!ei->ScsiStatus) {
 					
 	/* Ordinarily, this case should never happen, but there is a bug
 	   in some released firmware revisions that allows it to happen
@@ -804,6 +795,7 @@ static void complete_scsi_command(Comman
 				}
 			break;
 			case CMD_PROTOCOL_ERR:
+				cmd->result = DID_ERROR << 16;
 				dev_warn(&h->pdev->dev,
 					"%p has protocol error\n", c);
                         break;
diff -druNp linux-libre-3.4-gnu1/drivers/block/drbd/drbd_receiver.c linux-libre-3.4.53-gnu1/drivers/block/drbd/drbd_receiver.c
--- linux-libre-3.4-gnu1/drivers/block/drbd/drbd_receiver.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/drbd/drbd_receiver.c	2013-07-13 14:03:57.000000000 -0400
@@ -2225,7 +2225,6 @@ static int drbd_asb_recover_1p(struct dr
 		if (hg == -1 && mdev->state.role == R_PRIMARY) {
 			enum drbd_state_rv rv2;
 
-			drbd_set_role(mdev, R_SECONDARY, 0);
 			 /* drbd_change_state() does not sleep while in SS_IN_TRANSIENT_STATE,
 			  * we might be here in C_WF_REPORT_PARAMS which is transient.
 			  * we do not need to wait for the after state change work either. */
diff -druNp linux-libre-3.4-gnu1/drivers/block/drbd/drbd_req.c linux-libre-3.4.53-gnu1/drivers/block/drbd/drbd_req.c
--- linux-libre-3.4-gnu1/drivers/block/drbd/drbd_req.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/drbd/drbd_req.c	2013-07-13 14:03:57.000000000 -0400
@@ -37,6 +37,7 @@ static void _drbd_start_io_acct(struct d
 	const int rw = bio_data_dir(bio);
 	int cpu;
 	cpu = part_stat_lock();
+	part_round_stats(cpu, &mdev->vdisk->part0);
 	part_stat_inc(cpu, &mdev->vdisk->part0, ios[rw]);
 	part_stat_add(cpu, &mdev->vdisk->part0, sectors[rw], bio_sectors(bio));
 	part_inc_in_flight(&mdev->vdisk->part0, rw);
diff -druNp linux-libre-3.4-gnu1/drivers/block/floppy.c linux-libre-3.4.53-gnu1/drivers/block/floppy.c
--- linux-libre-3.4-gnu1/drivers/block/floppy.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/floppy.c	2013-07-13 14:03:57.000000000 -0400
@@ -4161,6 +4161,7 @@ static int __init floppy_init(void)
 
 		disks[dr]->queue = blk_init_queue(do_fd_request, &floppy_lock);
 		if (!disks[dr]->queue) {
+			put_disk(disks[dr]);
 			err = -ENOMEM;
 			goto out_put_disk;
 		}
diff -druNp linux-libre-3.4-gnu1/drivers/block/loop.c linux-libre-3.4.53-gnu1/drivers/block/loop.c
--- linux-libre-3.4-gnu1/drivers/block/loop.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/loop.c	2013-07-13 14:03:57.000000000 -0400
@@ -908,6 +908,11 @@ static int loop_set_fd(struct loop_devic
 		lo->lo_flags |= LO_FLAGS_PARTSCAN;
 	if (lo->lo_flags & LO_FLAGS_PARTSCAN)
 		ioctl_by_bdev(bdev, BLKRRPART, 0);
+
+	/* Grab the block_device to prevent its destruction after we
+	 * put /dev/loopXX inode. Later in loop_clr_fd() we bdput(bdev).
+	 */
+	bdgrab(bdev);
 	return 0;
 
 out_clr:
@@ -1004,8 +1009,10 @@ static int loop_clr_fd(struct loop_devic
 	memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
 	memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
 	memset(lo->lo_file_name, 0, LO_NAME_SIZE);
-	if (bdev)
+	if (bdev) {
+		bdput(bdev);
 		invalidate_bdev(bdev);
+	}
 	set_capacity(lo->lo_disk, 0);
 	loop_sysfs_exit(lo);
 	if (bdev) {
@@ -1263,11 +1270,9 @@ static int loop_set_capacity(struct loop
 	/* the width of sector_t may be narrow for bit-shift */
 	sz = sec;
 	sz <<= 9;
-	mutex_lock(&bdev->bd_mutex);
 	bd_set_size(bdev, sz);
 	/* let user-space know about the new size */
 	kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
-	mutex_unlock(&bdev->bd_mutex);
 
  out:
 	return err;
@@ -1837,11 +1842,15 @@ static int __init loop_init(void)
 		max_part = (1UL << part_shift) - 1;
 	}
 
-	if ((1UL << part_shift) > DISK_MAX_PARTS)
-		return -EINVAL;
+	if ((1UL << part_shift) > DISK_MAX_PARTS) {
+		err = -EINVAL;
+		goto misc_out;
+	}
 
-	if (max_loop > 1UL << (MINORBITS - part_shift))
-		return -EINVAL;
+	if (max_loop > 1UL << (MINORBITS - part_shift)) {
+		err = -EINVAL;
+		goto misc_out;
+	}
 
 	/*
 	 * If max_loop is specified, create that many devices upfront.
@@ -1859,8 +1868,10 @@ static int __init loop_init(void)
 		range = 1UL << MINORBITS;
 	}
 
-	if (register_blkdev(LOOP_MAJOR, "loop"))
-		return -EIO;
+	if (register_blkdev(LOOP_MAJOR, "loop")) {
+		err = -EIO;
+		goto misc_out;
+	}
 
 	blk_register_region(MKDEV(LOOP_MAJOR, 0), range,
 				  THIS_MODULE, loop_probe, NULL, NULL);
@@ -1873,6 +1884,10 @@ static int __init loop_init(void)
 
 	printk(KERN_INFO "loop: module loaded\n");
 	return 0;
+
+misc_out:
+	misc_deregister(&loop_misc);
+	return err;
 }
 
 static int loop_exit_cb(int id, void *ptr, void *data)
diff -druNp linux-libre-3.4-gnu1/drivers/block/nbd.c linux-libre-3.4.53-gnu1/drivers/block/nbd.c
--- linux-libre-3.4-gnu1/drivers/block/nbd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/nbd.c	2013-07-13 14:03:57.000000000 -0400
@@ -445,6 +445,14 @@ static void nbd_clear_que(struct nbd_dev
 		req->errors++;
 		nbd_end_request(req);
 	}
+
+	while (!list_empty(&nbd->waiting_queue)) {
+		req = list_entry(nbd->waiting_queue.next, struct request,
+				 queuelist);
+		list_del_init(&req->queuelist);
+		req->errors++;
+		nbd_end_request(req);
+	}
 }
 
 
@@ -594,6 +602,7 @@ static int __nbd_ioctl(struct block_devi
 		nbd->file = NULL;
 		nbd_clear_que(nbd);
 		BUG_ON(!list_empty(&nbd->queue_head));
+		BUG_ON(!list_empty(&nbd->waiting_queue));
 		if (file)
 			fput(file);
 		return 0;
@@ -657,7 +666,8 @@ static int __nbd_ioctl(struct block_devi
 
 		mutex_unlock(&nbd->tx_lock);
 
-		thread = kthread_create(nbd_thread, nbd, nbd->disk->disk_name);
+		thread = kthread_create(nbd_thread, nbd, "%s",
+					nbd->disk->disk_name);
 		if (IS_ERR(thread)) {
 			mutex_lock(&nbd->tx_lock);
 			return PTR_ERR(thread);
diff -druNp linux-libre-3.4-gnu1/drivers/block/nvme.c linux-libre-3.4.53-gnu1/drivers/block/nvme.c
--- linux-libre-3.4-gnu1/drivers/block/nvme.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/nvme.c	2013-07-13 14:03:57.000000000 -0400
@@ -1153,7 +1153,7 @@ static int nvme_user_admin_cmd(struct nv
 	struct nvme_admin_cmd cmd;
 	struct nvme_command c;
 	int status, length;
-	struct nvme_iod *iod;
+	struct nvme_iod *uninitialized_var(iod);
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
diff -druNp linux-libre-3.4-gnu1/drivers/block/rbd.c linux-libre-3.4.53-gnu1/drivers/block/rbd.c
--- linux-libre-3.4-gnu1/drivers/block/rbd.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/rbd.c	2013-07-13 14:03:57.000000000 -0400
@@ -71,7 +71,7 @@
 #define DEV_NAME_LEN		32
 #define MAX_INT_FORMAT_WIDTH	((5 * sizeof (int)) / 2 + 1)
 
-#define RBD_NOTIFY_TIMEOUT_DEFAULT 10
+#define RBD_READ_ONLY_DEFAULT		false
 
 /*
  * block device image metadata (in-memory version)
@@ -94,7 +94,7 @@ struct rbd_image_header {
 };
 
 struct rbd_options {
-	int	notify_timeout;
+	bool	read_only;
 };
 
 /*
@@ -174,10 +174,13 @@ struct rbd_device {
 
 	/* protects updating the header */
 	struct rw_semaphore     header_rwsem;
+	/* name of the snapshot this device reads from */
 	char                    snap_name[RBD_MAX_SNAP_NAME_LEN];
-	u32 cur_snap;	/* index+1 of current snapshot within snap context
-			   0 - for the head */
-	int read_only;
+	/* id of the snapshot this device reads from */
+	u64                     snap_id;	/* current snapshot id */
+	/* whether the snap_id this device reads from still exists */
+	bool                    snap_exists;
+	bool			read_only;
 
 	struct list_head	node;
 
@@ -186,6 +189,7 @@ struct rbd_device {
 
 	/* sysfs related */
 	struct device		dev;
+	unsigned long		open_count;
 };
 
 static DEFINE_MUTEX(ctl_mutex);	  /* Serialize open/close/setup/teardown */
@@ -198,10 +202,6 @@ static DEFINE_SPINLOCK(rbd_client_list_l
 
 static int __rbd_init_snaps_header(struct rbd_device *rbd_dev);
 static void rbd_dev_release(struct device *dev);
-static ssize_t rbd_snap_add(struct device *dev,
-			    struct device_attribute *attr,
-			    const char *buf,
-			    size_t count);
 static void __rbd_remove_snap_dev(struct rbd_device *rbd_dev,
 				  struct rbd_snap *snap);
 
@@ -247,13 +247,15 @@ static int rbd_open(struct block_device
 {
 	struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
 
-	rbd_get_dev(rbd_dev);
-
-	set_device_ro(bdev, rbd_dev->read_only);
-
 	if ((mode & FMODE_WRITE) && rbd_dev->read_only)
 		return -EROFS;
 
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+	rbd_get_dev(rbd_dev);
+	set_device_ro(bdev, rbd_dev->read_only);
+	rbd_dev->open_count++;
+	mutex_unlock(&ctl_mutex);
+
 	return 0;
 }
 
@@ -261,7 +263,11 @@ static int rbd_release(struct gendisk *d
 {
 	struct rbd_device *rbd_dev = disk->private_data;
 
+	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
+	BUG_ON(!rbd_dev->open_count);
+	rbd_dev->open_count--;
 	rbd_put_dev(rbd_dev);
+	mutex_unlock(&ctl_mutex);
 
 	return 0;
 }
@@ -343,17 +349,24 @@ static struct rbd_client *__rbd_client_f
  * mount options
  */
 enum {
-	Opt_notify_timeout,
 	Opt_last_int,
 	/* int args above */
 	Opt_last_string,
 	/* string args above */
+	Opt_read_only,
+	Opt_read_write,
+	/* Boolean args above */
+	Opt_last_bool,
 };
 
 static match_table_t rbdopt_tokens = {
-	{Opt_notify_timeout, "notify_timeout=%d"},
 	/* int args above */
 	/* string args above */
+	{Opt_read_only, "read_only"},
+	{Opt_read_only, "ro"},		/* Alternate spelling */
+	{Opt_read_write, "read_write"},
+	{Opt_read_write, "rw"},		/* Alternate spelling */
+	/* Boolean args above */
 	{-1, NULL}
 };
 
@@ -378,13 +391,18 @@ static int parse_rbd_opts_token(char *c,
 	} else if (token > Opt_last_int && token < Opt_last_string) {
 		dout("got string token %d val %s\n", token,
 		     argstr[0].from);
+	} else if (token > Opt_last_string && token < Opt_last_bool) {
+		dout("got Boolean token %d\n", token);
 	} else {
 		dout("got token %d\n", token);
 	}
 
 	switch (token) {
-	case Opt_notify_timeout:
-		rbdopt->notify_timeout = intval;
+	case Opt_read_only:
+		rbdopt->read_only = true;
+		break;
+	case Opt_read_write:
+		rbdopt->read_only = false;
 		break;
 	default:
 		BUG_ON(token);
@@ -408,7 +426,7 @@ static struct rbd_client *rbd_get_client
 	if (!rbd_opts)
 		return ERR_PTR(-ENOMEM);
 
-	rbd_opts->notify_timeout = RBD_NOTIFY_TIMEOUT_DEFAULT;
+	rbd_opts->read_only = RBD_READ_ONLY_DEFAULT;
 
 	opt = ceph_parse_options(options, mon_addr,
 				mon_addr + mon_addr_len,
@@ -450,7 +468,9 @@ static void rbd_client_release(struct kr
 	struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);
 
 	dout("rbd_release_client %p\n", rbdc);
+	spin_lock(&rbd_client_list_lock);
 	list_del(&rbdc->node);
+	spin_unlock(&rbd_client_list_lock);
 
 	ceph_destroy_client(rbdc->client);
 	kfree(rbdc->rbd_opts);
@@ -463,9 +483,7 @@ static void rbd_client_release(struct kr
  */
 static void rbd_put_client(struct rbd_device *rbd_dev)
 {
-	spin_lock(&rbd_client_list_lock);
 	kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);
-	spin_unlock(&rbd_client_list_lock);
 	rbd_dev->rbd_client = NULL;
 }
 
@@ -498,7 +516,7 @@ static int rbd_header_from_disk(struct r
 
 	snap_count = le32_to_cpu(ondisk->snap_count);
 	header->snapc = kmalloc(sizeof(struct ceph_snap_context) +
-				snap_count * sizeof (*ondisk),
+				snap_count * sizeof(u64),
 				gfp_flags);
 	if (!header->snapc)
 		return -ENOMEM;
@@ -552,21 +570,6 @@ err_snapc:
 	return -ENOMEM;
 }
 
-static int snap_index(struct rbd_image_header *header, int snap_num)
-{
-	return header->total_snaps - snap_num;
-}
-
-static u64 cur_snap_id(struct rbd_device *rbd_dev)
-{
-	struct rbd_image_header *header = &rbd_dev->header;
-
-	if (!rbd_dev->cur_snap)
-		return 0;
-
-	return header->snapc->snaps[snap_index(header, rbd_dev->cur_snap)];
-}
-
 static int snap_by_name(struct rbd_image_header *header, const char *snap_name,
 			u64 *seq, u64 *size)
 {
@@ -605,17 +608,18 @@ static int rbd_header_set_snap(struct rb
 			snapc->seq = header->snap_seq;
 		else
 			snapc->seq = 0;
-		dev->cur_snap = 0;
-		dev->read_only = 0;
+		dev->snap_id = CEPH_NOSNAP;
+		dev->snap_exists = false;
+		dev->read_only = dev->rbd_client->rbd_opts->read_only;
 		if (size)
 			*size = header->image_size;
 	} else {
 		ret = snap_by_name(header, dev->snap_name, &snapc->seq, size);
 		if (ret < 0)
 			goto done;
-
-		dev->cur_snap = header->total_snaps - ret;
-		dev->read_only = 1;
+		dev->snap_id = snapc->seq;
+		dev->snap_exists = true;
+		dev->read_only = true;	/* No choice for snapshots */
 	}
 
 	ret = 0;
@@ -626,7 +630,7 @@ done:
 
 static void rbd_header_free(struct rbd_image_header *header)
 {
-	kfree(header->snapc);
+	ceph_put_snap_context(header->snapc);
 	kfree(header->snap_names);
 	kfree(header->snap_sizes);
 }
@@ -904,13 +908,10 @@ static int rbd_do_request(struct request
 
 	dout("rbd_do_request obj=%s ofs=%lld len=%lld\n", obj, len, ofs);
 
-	down_read(&dev->header_rwsem);
-
 	osdc = &dev->rbd_client->client->osdc;
 	req = ceph_osdc_alloc_request(osdc, flags, snapc, ops,
 					false, GFP_NOIO, pages, bio);
 	if (!req) {
-		up_read(&dev->header_rwsem);
 		ret = -ENOMEM;
 		goto done_pages;
 	}
@@ -937,15 +938,15 @@ static int rbd_do_request(struct request
 	layout->fl_object_size = cpu_to_le32(1 << RBD_MAX_OBJ_ORDER);
 	layout->fl_pg_preferred = cpu_to_le32(-1);
 	layout->fl_pg_pool = cpu_to_le32(dev->poolid);
-	ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,
-				req, ops);
+	ret = ceph_calc_raw_layout(osdc, layout, snapid, ofs, &len, &bno,
+				   req, ops);
+	BUG_ON(ret != 0);
 
 	ceph_osdc_build_request(req, ofs, &len,
 				ops,
 				snapc,
 				&mtime,
 				req->r_oid, req->r_oid_len);
-	up_read(&dev->header_rwsem);
 
 	if (linger_req) {
 		ceph_osdc_set_request_linger(osdc, req);
@@ -1210,7 +1211,7 @@ static int rbd_req_sync_notify_ack(struc
 	if (ret < 0)
 		return ret;
 
-	ops[0].watch.ver = cpu_to_le64(dev->header.obj_version);
+	ops[0].watch.ver = cpu_to_le64(ver);
 	ops[0].watch.cookie = notify_id;
 	ops[0].watch.flag = 0;
 
@@ -1230,6 +1231,7 @@ static int rbd_req_sync_notify_ack(struc
 static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
 {
 	struct rbd_device *dev = (struct rbd_device *)data;
+	u64 hver;
 	int rc;
 
 	if (!dev)
@@ -1239,12 +1241,13 @@ static void rbd_watch_cb(u64 ver, u64 no
 		notify_id, (int)opcode);
 	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
 	rc = __rbd_update_snaps(dev);
+	hver = dev->header.obj_version;
 	mutex_unlock(&ctl_mutex);
 	if (rc)
 		pr_warning(RBD_DRV_NAME "%d got notification but failed to "
 			   " update snaps: %d\n", dev->major, rc);
 
-	rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name);
+	rbd_req_sync_notify_ack(dev, hver, notify_id, dev->obj_md_name);
 }
 
 /*
@@ -1321,71 +1324,7 @@ static int rbd_req_sync_unwatch(struct r
 	return ret;
 }
 
-struct rbd_notify_info {
-	struct rbd_device *dev;
-};
-
-static void rbd_notify_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
-{
-	struct rbd_device *dev = (struct rbd_device *)data;
-	if (!dev)
-		return;
-
-	dout("rbd_notify_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
-		notify_id, (int)opcode);
-}
-
-/*
- * Request sync osd notify
- */
-static int rbd_req_sync_notify(struct rbd_device *dev,
-		          const char *obj)
-{
-	struct ceph_osd_req_op *ops;
-	struct ceph_osd_client *osdc = &dev->rbd_client->client->osdc;
-	struct ceph_osd_event *event;
-	struct rbd_notify_info info;
-	int payload_len = sizeof(u32) + sizeof(u32);
-	int ret;
-
-	ret = rbd_create_rw_ops(&ops, 1, CEPH_OSD_OP_NOTIFY, payload_len);
-	if (ret < 0)
-		return ret;
-
-	info.dev = dev;
-
-	ret = ceph_osdc_create_event(osdc, rbd_notify_cb, 1,
-				     (void *)&info, &event);
-	if (ret < 0)
-		goto fail;
-
-	ops[0].watch.ver = 1;
-	ops[0].watch.flag = 1;
-	ops[0].watch.cookie = event->cookie;
-	ops[0].watch.prot_ver = RADOS_NOTIFY_VER;
-	ops[0].watch.timeout = 12;
-
-	ret = rbd_req_sync_op(dev, NULL,
-			       CEPH_NOSNAP,
-			       0,
-			       CEPH_OSD_FLAG_WRITE | CEPH_OSD_FLAG_ONDISK,
-			       ops,
-			       1, obj, 0, 0, NULL, NULL, NULL);
-	if (ret < 0)
-		goto fail_event;
-
-	ret = ceph_osdc_wait_event(event, CEPH_OSD_TIMEOUT_DEFAULT);
-	dout("ceph_osdc_wait_event returned %d\n", ret);
-	rbd_destroy_ops(ops);
-	return 0;
-
-fail_event:
-	ceph_osdc_cancel_event(event);
-fail:
-	rbd_destroy_ops(ops);
-	return ret;
-}
-
+#if 0
 /*
  * Request sync osd read
  */
@@ -1425,6 +1364,7 @@ static int rbd_req_sync_exec(struct rbd_
 	dout("cls_exec returned %d\n", ret);
 	return ret;
 }
+#endif
 
 static struct rbd_req_coll *rbd_alloc_coll(int num_reqs)
 {
@@ -1457,6 +1397,7 @@ static void rbd_rq_fn(struct request_que
 		u64 ofs;
 		int num_segs, cur_seg = 0;
 		struct rbd_req_coll *coll;
+		struct ceph_snap_context *snapc;
 
 		/* peek at request from block layer */
 		if (!rq)
@@ -1483,6 +1424,20 @@ static void rbd_rq_fn(struct request_que
 
 		spin_unlock_irq(q->queue_lock);
 
+		down_read(&rbd_dev->header_rwsem);
+
+		if (rbd_dev->snap_id != CEPH_NOSNAP && !rbd_dev->snap_exists) {
+			up_read(&rbd_dev->header_rwsem);
+			dout("request for non-existent snapshot");
+			spin_lock_irq(q->queue_lock);
+			__blk_end_request_all(rq, -ENXIO);
+			continue;
+		}
+
+		snapc = ceph_get_snap_context(rbd_dev->header.snapc);
+
+		up_read(&rbd_dev->header_rwsem);
+
 		dout("%s 0x%x bytes at 0x%llx\n",
 		     do_write ? "write" : "read",
 		     size, blk_rq_pos(rq) * SECTOR_SIZE);
@@ -1492,6 +1447,7 @@ static void rbd_rq_fn(struct request_que
 		if (!coll) {
 			spin_lock_irq(q->queue_lock);
 			__blk_end_request_all(rq, -ENOMEM);
+			ceph_put_snap_context(snapc);
 			continue;
 		}
 
@@ -1515,13 +1471,13 @@ static void rbd_rq_fn(struct request_que
 			/* init OSD command: write or read */
 			if (do_write)
 				rbd_req_write(rq, rbd_dev,
-					      rbd_dev->header.snapc,
+					      snapc,
 					      ofs,
 					      op_size, bio,
 					      coll, cur_seg);
 			else
 				rbd_req_read(rq, rbd_dev,
-					     cur_snap_id(rbd_dev),
+					     rbd_dev->snap_id,
 					     ofs,
 					     op_size, bio,
 					     coll, cur_seg);
@@ -1538,6 +1494,8 @@ next_seg:
 		if (bp)
 			bio_pair_release(bp);
 		spin_lock_irq(q->queue_lock);
+
+		ceph_put_snap_context(snapc);
 	}
 }
 
@@ -1641,55 +1599,6 @@ out_dh:
 	return rc;
 }
 
-/*
- * create a snapshot
- */
-static int rbd_header_add_snap(struct rbd_device *dev,
-			       const char *snap_name,
-			       gfp_t gfp_flags)
-{
-	int name_len = strlen(snap_name);
-	u64 new_snapid;
-	int ret;
-	void *data, *p, *e;
-	u64 ver;
-	struct ceph_mon_client *monc;
-
-	/* we should create a snapshot only if we're pointing at the head */
-	if (dev->cur_snap)
-		return -EINVAL;
-
-	monc = &dev->rbd_client->client->monc;
-	ret = ceph_monc_create_snapid(monc, dev->poolid, &new_snapid);
-	dout("created snapid=%lld\n", new_snapid);
-	if (ret < 0)
-		return ret;
-
-	data = kmalloc(name_len + 16, gfp_flags);
-	if (!data)
-		return -ENOMEM;
-
-	p = data;
-	e = data + name_len + 16;
-
-	ceph_encode_string_safe(&p, e, snap_name, name_len, bad);
-	ceph_encode_64_safe(&p, e, new_snapid, bad);
-
-	ret = rbd_req_sync_exec(dev, dev->obj_md_name, "rbd", "snap_add",
-				data, p - data, &ver);
-
-	kfree(data);
-
-	if (ret < 0)
-		return ret;
-
-	dev->header.snapc->seq =  new_snapid;
-
-	return 0;
-bad:
-	return -ERANGE;
-}
-
 static void __rbd_remove_all_snaps(struct rbd_device *rbd_dev)
 {
 	struct rbd_snap *snap;
@@ -1714,10 +1623,15 @@ static int __rbd_update_snaps(struct rbd
 	if (ret < 0)
 		return ret;
 
+	down_write(&rbd_dev->header_rwsem);
+
 	/* resized? */
-	set_capacity(rbd_dev->disk, h.image_size / SECTOR_SIZE);
+	if (rbd_dev->snap_id == CEPH_NOSNAP) {
+		sector_t size = (sector_t) h.image_size / SECTOR_SIZE;
 
-	down_write(&rbd_dev->header_rwsem);
+		dout("setting size to %llu sectors", (unsigned long long) size);
+		set_capacity(rbd_dev->disk, size);
+	}
 
 	snap_seq = rbd_dev->header.snapc->seq;
 	if (rbd_dev->header.total_snaps &&
@@ -1726,10 +1640,12 @@ static int __rbd_update_snaps(struct rbd
 		   if head moves */
 		follow_seq = 1;
 
-	kfree(rbd_dev->header.snapc);
+	ceph_put_snap_context(rbd_dev->header.snapc);
 	kfree(rbd_dev->header.snap_names);
 	kfree(rbd_dev->header.snap_sizes);
 
+	rbd_dev->header.obj_version = h.obj_version;
+	rbd_dev->header.image_size = h.image_size;
 	rbd_dev->header.total_snaps = h.total_snaps;
 	rbd_dev->header.snapc = h.snapc;
 	rbd_dev->header.snap_names = h.snap_names;
@@ -1833,8 +1749,13 @@ static ssize_t rbd_size_show(struct devi
 			     struct device_attribute *attr, char *buf)
 {
 	struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
+	sector_t size;
 
-	return sprintf(buf, "%llu\n", (unsigned long long)rbd_dev->header.image_size);
+	down_read(&rbd_dev->header_rwsem);
+	size = get_capacity(rbd_dev->disk);
+	up_read(&rbd_dev->header_rwsem);
+
+	return sprintf(buf, "%llu\n", (unsigned long long) size * SECTOR_SIZE);
 }
 
 static ssize_t rbd_major_show(struct device *dev,
@@ -1905,7 +1826,6 @@ static DEVICE_ATTR(pool, S_IRUGO, rbd_po
 static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL);
 static DEVICE_ATTR(refresh, S_IWUSR, NULL, rbd_image_refresh);
 static DEVICE_ATTR(current_snap, S_IRUGO, rbd_snap_show, NULL);
-static DEVICE_ATTR(create_snap, S_IWUSR, NULL, rbd_snap_add);
 
 static struct attribute *rbd_attrs[] = {
 	&dev_attr_size.attr,
@@ -1915,7 +1835,6 @@ static struct attribute *rbd_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_current_snap.attr,
 	&dev_attr_refresh.attr,
-	&dev_attr_create_snap.attr,
 	NULL
 };
 
@@ -2084,7 +2003,14 @@ static int __rbd_init_snaps_header(struc
 			cur_id = rbd_dev->header.snapc->snaps[i - 1];
 
 		if (!i || old_snap->id < cur_id) {
-			/* old_snap->id was skipped, thus was removed */
+			/*
+			 * old_snap->id was skipped, thus was
+			 * removed.  If this rbd_dev is mapped to
+			 * the removed snapshot, record that it no
+			 * longer exists, to prevent further I/O.
+			 */
+			if (rbd_dev->snap_id == old_snap->id)
+				rbd_dev->snap_exists = false;
 			__rbd_remove_snap_dev(rbd_dev, old_snap);
 			continue;
 		}
@@ -2232,8 +2158,8 @@ static void rbd_id_put(struct rbd_device
 		struct rbd_device *rbd_dev;
 
 		rbd_dev = list_entry(tmp, struct rbd_device, node);
-		if (rbd_id > max_id)
-			max_id = rbd_id;
+		if (rbd_dev->id > max_id)
+			max_id = rbd_dev->id;
 	}
 	spin_unlock(&rbd_dev_list_lock);
 
@@ -2530,6 +2456,11 @@ static ssize_t rbd_remove(struct bus_typ
 		goto done;
 	}
 
+	if (rbd_dev->open_count) {
+		ret = -EBUSY;
+		goto done;
+	}
+
 	__rbd_remove_all_snaps(rbd_dev);
 	rbd_bus_del_dev(rbd_dev);
 
@@ -2538,47 +2469,6 @@ done:
 	return ret;
 }
 
-static ssize_t rbd_snap_add(struct device *dev,
-			    struct device_attribute *attr,
-			    const char *buf,
-			    size_t count)
-{
-	struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
-	int ret;
-	char *name = kmalloc(count + 1, GFP_KERNEL);
-	if (!name)
-		return -ENOMEM;
-
-	snprintf(name, count, "%s", buf);
-
-	mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
-
-	ret = rbd_header_add_snap(rbd_dev,
-				  name, GFP_KERNEL);
-	if (ret < 0)
-		goto err_unlock;
-
-	ret = __rbd_update_snaps(rbd_dev);
-	if (ret < 0)
-		goto err_unlock;
-
-	/* shouldn't hold ctl_mutex when notifying.. notify might
-	   trigger a watch callback that would need to get that mutex */
-	mutex_unlock(&ctl_mutex);
-
-	/* make a best effort, don't error if failed */
-	rbd_req_sync_notify(rbd_dev, rbd_dev->obj_md_name);
-
-	ret = count;
-	kfree(name);
-	return ret;
-
-err_unlock:
-	mutex_unlock(&ctl_mutex);
-	kfree(name);
-	return ret;
-}
-
 /*
  * create control files in sysfs
  * /sys/bus/rbd/...
diff -druNp linux-libre-3.4-gnu1/drivers/block/sunvdc.c linux-libre-3.4.53-gnu1/drivers/block/sunvdc.c
--- linux-libre-3.4-gnu1/drivers/block/sunvdc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/sunvdc.c	2013-07-13 14:03:57.000000000 -0400
@@ -461,7 +461,7 @@ static int generic_request(struct vdc_po
 	int op_len, err;
 	void *req_buf;
 
-	if (!(((u64)1 << ((u64)op - 1)) & port->operations))
+	if (!(((u64)1 << (u64)op) & port->operations))
 		return -EOPNOTSUPP;
 
 	switch (op) {
diff -druNp linux-libre-3.4-gnu1/drivers/block/umem.c linux-libre-3.4.53-gnu1/drivers/block/umem.c
--- linux-libre-3.4-gnu1/drivers/block/umem.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/umem.c	2013-07-13 14:03:57.000000000 -0400
@@ -513,6 +513,44 @@ static void process_page(unsigned long d
 	}
 }
 
+struct mm_plug_cb {
+	struct blk_plug_cb cb;
+	struct cardinfo *card;
+};
+
+static void mm_unplug(struct blk_plug_cb *cb)
+{
+	struct mm_plug_cb *mmcb = container_of(cb, struct mm_plug_cb, cb);
+
+	spin_lock_irq(&mmcb->card->lock);
+	activate(mmcb->card);
+	spin_unlock_irq(&mmcb->card->lock);
+	kfree(mmcb);
+}
+
+static int mm_check_plugged(struct cardinfo *card)
+{
+	struct blk_plug *plug = current->plug;
+	struct mm_plug_cb *mmcb;
+
+	if (!plug)
+		return 0;
+
+	list_for_each_entry(mmcb, &plug->cb_list, cb.list) {
+		if (mmcb->cb.callback == mm_unplug && mmcb->card == card)
+			return 1;
+	}
+	/* Not currently on the callback list */
+	mmcb = kmalloc(sizeof(*mmcb), GFP_ATOMIC);
+	if (!mmcb)
+		return 0;
+
+	mmcb->card = card;
+	mmcb->cb.callback = mm_unplug;
+	list_add(&mmcb->cb.list, &plug->cb_list);
+	return 1;
+}
+
 static void mm_make_request(struct request_queue *q, struct bio *bio)
 {
 	struct cardinfo *card = q->queuedata;
@@ -523,6 +561,8 @@ static void mm_make_request(struct reque
 	*card->biotail = bio;
 	bio->bi_next = NULL;
 	card->biotail = &bio->bi_next;
+	if (bio->bi_rw & REQ_SYNC || !mm_check_plugged(card))
+		activate(card);
 	spin_unlock_irq(&card->lock);
 
 	return;
diff -druNp linux-libre-3.4-gnu1/drivers/block/xen-blkback/blkback.c linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/blkback.c
--- linux-libre-3.4-gnu1/drivers/block/xen-blkback/blkback.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/blkback.c	2013-07-13 14:03:57.000000000 -0400
@@ -337,7 +337,7 @@ static void xen_blkbk_unmap(struct pendi
 		invcount++;
 	}
 
-	ret = gnttab_unmap_refs(unmap, pages, invcount, false);
+	ret = gnttab_unmap_refs(unmap, NULL, pages, invcount);
 	BUG_ON(ret);
 }
 
@@ -422,6 +422,16 @@ static int dispatch_discard_io(struct xe
 	return err;
 }
 
+static int dispatch_other_io(struct xen_blkif *blkif,
+			     struct blkif_request *req,
+			     struct pending_req *pending_req)
+{
+	free_req(pending_req);
+	make_response(blkif, req->u.other.id, req->operation,
+		      BLKIF_RSP_EOPNOTSUPP);
+	return -EIO;
+}
+
 static void xen_blk_drain_io(struct xen_blkif *blkif)
 {
 	atomic_set(&blkif->drain, 1);
@@ -543,17 +553,30 @@ __do_block_io_op(struct xen_blkif *blkif
 
 		/* Apply all sanity checks to /private copy/ of request. */
 		barrier();
-		if (unlikely(req.operation == BLKIF_OP_DISCARD)) {
+
+		switch (req.operation) {
+		case BLKIF_OP_READ:
+		case BLKIF_OP_WRITE:
+		case BLKIF_OP_WRITE_BARRIER:
+		case BLKIF_OP_FLUSH_DISKCACHE:
+			if (dispatch_rw_block_io(blkif, &req, pending_req))
+				goto done;
+			break;
+		case BLKIF_OP_DISCARD:
 			free_req(pending_req);
 			if (dispatch_discard_io(blkif, &req))
-				break;
-		} else if (dispatch_rw_block_io(blkif, &req, pending_req))
+				goto done;
+			break;
+		default:
+			if (dispatch_other_io(blkif, &req, pending_req))
+				goto done;
 			break;
+		}
 
 		/* Yield point for this unbounded loop. */
 		cond_resched();
 	}
-
+done:
 	return more_to_do;
 }
 
@@ -720,13 +743,7 @@ static int dispatch_rw_block_io(struct x
 		bio->bi_end_io  = end_block_io_op;
 	}
 
-	/*
-	 * We set it one so that the last submit_bio does not have to call
-	 * atomic_inc.
-	 */
 	atomic_set(&pending_req->pendcnt, nbio);
-
-	/* Get a reference count for the disk queue and start sending I/O */
 	blk_start_plug(&plug);
 
 	for (i = 0; i < nbio; i++)
@@ -754,6 +771,7 @@ static int dispatch_rw_block_io(struct x
  fail_put_bio:
 	for (i = 0; i < nbio; i++)
 		bio_put(biolist[i]);
+	atomic_set(&pending_req->pendcnt, 1);
 	__end_block_io_op(pending_req, -EINVAL);
 	msleep(1); /* back off a bit */
 	return -EIO;
diff -druNp linux-libre-3.4-gnu1/drivers/block/xen-blkback/common.h linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/common.h
--- linux-libre-3.4-gnu1/drivers/block/xen-blkback/common.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/common.h	2013-07-13 14:03:57.000000000 -0400
@@ -76,11 +76,18 @@ struct blkif_x86_32_request_discard {
 	uint64_t       nr_sectors;
 } __attribute__((__packed__));
 
+struct blkif_x86_32_request_other {
+	uint8_t        _pad1;
+	blkif_vdev_t   _pad2;
+	uint64_t       id;           /* private guest value, echoed in resp  */
+} __attribute__((__packed__));
+
 struct blkif_x86_32_request {
 	uint8_t        operation;    /* BLKIF_OP_???                         */
 	union {
 		struct blkif_x86_32_request_rw rw;
 		struct blkif_x86_32_request_discard discard;
+		struct blkif_x86_32_request_other other;
 	} u;
 } __attribute__((__packed__));
 
@@ -112,11 +119,19 @@ struct blkif_x86_64_request_discard {
 	uint64_t       nr_sectors;
 } __attribute__((__packed__));
 
+struct blkif_x86_64_request_other {
+	uint8_t        _pad1;
+	blkif_vdev_t   _pad2;
+	uint32_t       _pad3;        /* offsetof(blkif_..,u.discard.id)==8   */
+	uint64_t       id;           /* private guest value, echoed in resp  */
+} __attribute__((__packed__));
+
 struct blkif_x86_64_request {
 	uint8_t        operation;    /* BLKIF_OP_???                         */
 	union {
 		struct blkif_x86_64_request_rw rw;
 		struct blkif_x86_64_request_discard discard;
+		struct blkif_x86_64_request_other other;
 	} u;
 } __attribute__((__packed__));
 
@@ -257,10 +272,16 @@ static inline void blkif_get_x86_32_req(
 		break;
 	case BLKIF_OP_DISCARD:
 		dst->u.discard.flag = src->u.discard.flag;
+		dst->u.discard.id = src->u.discard.id;
 		dst->u.discard.sector_number = src->u.discard.sector_number;
 		dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
 		break;
 	default:
+		/*
+		 * Don't know how to translate this op. Only get the
+		 * ID so failure can be reported to the frontend.
+		 */
+		dst->u.other.id = src->u.other.id;
 		break;
 	}
 }
@@ -287,10 +308,16 @@ static inline void blkif_get_x86_64_req(
 		break;
 	case BLKIF_OP_DISCARD:
 		dst->u.discard.flag = src->u.discard.flag;
+		dst->u.discard.id = src->u.discard.id;
 		dst->u.discard.sector_number = src->u.discard.sector_number;
 		dst->u.discard.nr_sectors = src->u.discard.nr_sectors;
 		break;
 	default:
+		/*
+		 * Don't know how to translate this op. Only get the
+		 * ID so failure can be reported to the frontend.
+		 */
+		dst->u.other.id = src->u.other.id;
 		break;
 	}
 }
diff -druNp linux-libre-3.4-gnu1/drivers/block/xen-blkback/xenbus.c linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/xenbus.c
--- linux-libre-3.4-gnu1/drivers/block/xen-blkback/xenbus.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/block/xen-blkback/xenbus.c	2013-07-13 14:03:57.000000000 -0400
@@ -367,6 +367,7 @@ static int xen_blkbk_remove(struct xenbu
 		be->blkif = NULL;
 	}
 
+	kfree(be->mode);
 	kfree(be);
 	dev_set_drvdata(&dev->dev, NULL);
 	return 0;
@@ -502,6 +503,7 @@ static void backend_changed(struct xenbu
 		= container_of(watch, struct backend_info, backend_watch);
 	struct xenbus_device *dev = be->dev;
 	int cdrom = 0;
+	unsigned long handle;
 	char *device_type;
 
 	DPRINTK("");
@@ -521,10 +523,10 @@ static void backend_changed(struct xenbu
 		return;
 	}
 
-	if ((be->major || be->minor) &&
-	    ((be->major != major) || (be->minor != minor))) {
-		pr_warn(DRV_PFX "changing physical device (from %x:%x to %x:%x) not supported.\n",
-			be->major, be->minor, major, minor);
+	if (be->major | be->minor) {
+		if (be->major != major || be->minor != minor)
+			pr_warn(DRV_PFX "changing physical device (from %x:%x to %x:%x) not supported.\n",
+				be->major, be->minor, major, minor);
 		return;
 	}
 
@@ -542,36 +544,33 @@ static void backend_changed(struct xenbu
 		kfree(device_type);
 	}
 
-	if (be->major == 0 && be->minor == 0) {
-		/* Front end dir is a number, which is used as the handle. */
-
-		char *p = strrchr(dev->otherend, '/') + 1;
-		long handle;
-		err = strict_strtoul(p, 0, &handle);
-		if (err)
-			return;
+	/* Front end dir is a number, which is used as the handle. */
+	err = strict_strtoul(strrchr(dev->otherend, '/') + 1, 0, &handle);
+	if (err)
+		return;
 
-		be->major = major;
-		be->minor = minor;
+	be->major = major;
+	be->minor = minor;
 
-		err = xen_vbd_create(be->blkif, handle, major, minor,
-				 (NULL == strchr(be->mode, 'w')), cdrom);
-		if (err) {
-			be->major = 0;
-			be->minor = 0;
-			xenbus_dev_fatal(dev, err, "creating vbd structure");
-			return;
-		}
+	err = xen_vbd_create(be->blkif, handle, major, minor,
+			     !strchr(be->mode, 'w'), cdrom);
 
+	if (err)
+		xenbus_dev_fatal(dev, err, "creating vbd structure");
+	else {
 		err = xenvbd_sysfs_addif(dev);
 		if (err) {
 			xen_vbd_free(&be->blkif->vbd);
-			be->major = 0;
-			be->minor = 0;
 			xenbus_dev_fatal(dev, err, "creating sysfs entries");
-			return;
 		}
+	}
 
+	if (err) {
+		kfree(be->mode);
+		be->mode = NULL;
+		be->major = 0;
+		be->minor = 0;
+	} else {
 		/* We're potentially connected now */
 		xen_update_blkif_status(be->blkif);
 	}
diff -druNp linux-libre-3.4-gnu1/drivers/bluetooth/ath3k.c linux-libre-3.4.53-gnu1/drivers/bluetooth/ath3k.c
--- linux-libre-3.4-gnu1/drivers/bluetooth/ath3k.c	2013-05-01 21:58:45.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bluetooth/ath3k.c	2013-07-13 18:27:53.000000000 -0400
@@ -66,13 +66,16 @@ static struct usb_device_id ath3k_table[
 	{ USB_DEVICE(0x13d3, 0x3304) },
 	{ USB_DEVICE(0x0930, 0x0215) },
 	{ USB_DEVICE(0x0489, 0xE03D) },
+	{ USB_DEVICE(0x0489, 0xE027) },
 
 	/* Atheros AR9285 Malbec with sflash firmware */
 	{ USB_DEVICE(0x03F0, 0x311D) },
 
 	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0CF3, 0x0036) },
 	{ USB_DEVICE(0x0CF3, 0x3004) },
 	{ USB_DEVICE(0x0CF3, 0x311D) },
+	{ USB_DEVICE(0x0CF3, 0x817a) },
 	{ USB_DEVICE(0x13d3, 0x3375) },
 	{ USB_DEVICE(0x04CA, 0x3005) },
 	{ USB_DEVICE(0x13d3, 0x3362) },
@@ -92,8 +95,10 @@ MODULE_DEVICE_TABLE(usb, ath3k_table);
 static struct usb_device_id ath3k_blist_tbl[] = {
 
 	/* Atheros AR3012 with sflash firmware*/
+	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
diff -druNp linux-libre-3.4-gnu1/drivers/bluetooth/btusb.c linux-libre-3.4.53-gnu1/drivers/bluetooth/btusb.c
--- linux-libre-3.4-gnu1/drivers/bluetooth/btusb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/bluetooth/btusb.c	2013-07-13 14:03:57.000000000 -0400
@@ -60,6 +60,9 @@ static struct usb_device_id btusb_table[
 	/* Generic Bluetooth USB device */
 	{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
 
+	/* Apple-specific (Broadcom) devices */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
+
 	/* Broadcom SoftSailing reporting vendor specific */
 	{ USB_DEVICE(0x0a5c, 0x21e1) },
 
@@ -102,15 +105,14 @@ static struct usb_device_id btusb_table[
 
 	/* Broadcom BCM20702A0 */
 	{ USB_DEVICE(0x0489, 0xe042) },
-	{ USB_DEVICE(0x0a5c, 0x21e3) },
-	{ USB_DEVICE(0x0a5c, 0x21e6) },
-	{ USB_DEVICE(0x0a5c, 0x21e8) },
-	{ USB_DEVICE(0x0a5c, 0x21f3) },
 	{ USB_DEVICE(0x413c, 0x8197) },
 
 	/* Foxconn - Hon Hai */
 	{ USB_DEVICE(0x0489, 0xe033) },
 
+	/*Broadcom devices with vendor specific id */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
+
 	{ }	/* Terminating entry */
 };
 
@@ -128,13 +130,16 @@ static struct usb_device_id blacklist_ta
 	{ USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 	{ USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 	{ USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
+	{ USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 
 	/* Atheros AR9285 Malbec with sflash firmware */
 	{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 
 	/* Atheros 3012 with sflash firmware */
+	{ USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
+	{ USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
diff -druNp linux-libre-3.4-gnu1/drivers/cdrom/cdrom.c linux-libre-3.4.53-gnu1/drivers/cdrom/cdrom.c
--- linux-libre-3.4-gnu1/drivers/cdrom/cdrom.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/cdrom/cdrom.c	2013-07-13 14:03:57.000000000 -0400
@@ -2882,7 +2882,7 @@ static noinline int mmc_ioctl_cdrom_read
 	if (lba < 0)
 		return -EINVAL;
 
-	cgc->buffer = kmalloc(blocksize, GFP_KERNEL);
+	cgc->buffer = kzalloc(blocksize, GFP_KERNEL);
 	if (cgc->buffer == NULL)
 		return -ENOMEM;
 
diff -druNp linux-libre-3.4-gnu1/drivers/char/agp/intel-agp.c linux-libre-3.4.53-gnu1/drivers/char/agp/intel-agp.c
--- linux-libre-3.4-gnu1/drivers/char/agp/intel-agp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/agp/intel-agp.c	2013-07-13 14:03:57.000000000 -0400
@@ -898,6 +898,7 @@ static struct pci_device_id agp_intel_pc
 	ID(PCI_DEVICE_ID_INTEL_B43_HB),
 	ID(PCI_DEVICE_ID_INTEL_B43_1_HB),
 	ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB),
+	ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D2_HB),
 	ID(PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB),
 	ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB),
 	ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB),
diff -druNp linux-libre-3.4-gnu1/drivers/char/agp/intel-agp.h linux-libre-3.4.53-gnu1/drivers/char/agp/intel-agp.h
--- linux-libre-3.4-gnu1/drivers/char/agp/intel-agp.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/agp/intel-agp.h	2013-07-13 14:03:57.000000000 -0400
@@ -211,6 +211,7 @@
 #define PCI_DEVICE_ID_INTEL_G41_HB          0x2E30
 #define PCI_DEVICE_ID_INTEL_G41_IG          0x2E32
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB	    0x0040
+#define PCI_DEVICE_ID_INTEL_IRONLAKE_D2_HB	    0x0069
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG	    0x0042
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB	    0x0044
 #define PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB	    0x0062
diff -druNp linux-libre-3.4-gnu1/drivers/char/hpet.c linux-libre-3.4.53-gnu1/drivers/char/hpet.c
--- linux-libre-3.4-gnu1/drivers/char/hpet.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/hpet.c	2013-07-13 14:03:57.000000000 -0400
@@ -373,26 +373,14 @@ static int hpet_mmap(struct file *file,
 	struct hpet_dev *devp;
 	unsigned long addr;
 
-	if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff)
-		return -EINVAL;
-
 	devp = file->private_data;
 	addr = devp->hd_hpets->hp_hpet_phys;
 
 	if (addr & (PAGE_SIZE - 1))
 		return -ENOSYS;
 
-	vma->vm_flags |= VM_IO;
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
-
-	if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT,
-					PAGE_SIZE, vma->vm_page_prot)) {
-		printk(KERN_ERR "%s: io_remap_pfn_range failed\n",
-			__func__);
-		return -EAGAIN;
-	}
-
-	return 0;
+	return vm_iomap_memory(vma, addr, PAGE_SIZE);
 #else
 	return -ENOSYS;
 #endif
diff -druNp linux-libre-3.4-gnu1/drivers/char/hw_random/atmel-rng.c linux-libre-3.4.53-gnu1/drivers/char/hw_random/atmel-rng.c
--- linux-libre-3.4-gnu1/drivers/char/hw_random/atmel-rng.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/hw_random/atmel-rng.c	2013-07-13 14:03:57.000000000 -0400
@@ -34,8 +34,15 @@ static int atmel_trng_read(struct hwrng
 	u32 *data = buf;
 
 	/* data ready? */
-	if (readl(trng->base + TRNG_ODATA) & 1) {
+	if (readl(trng->base + TRNG_ISR) & 1) {
 		*data = readl(trng->base + TRNG_ODATA);
+		/*
+		  ensure data ready is only set again AFTER the next data
+		  word is ready in case it got set between checking ISR
+		  and reading ODATA, so we don't risk re-reading the
+		  same word
+		*/
+		readl(trng->base + TRNG_ISR);
 		return 4;
 	} else
 		return 0;
diff -druNp linux-libre-3.4-gnu1/drivers/char/hw_random/core.c linux-libre-3.4.53-gnu1/drivers/char/hw_random/core.c
--- linux-libre-3.4-gnu1/drivers/char/hw_random/core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/hw_random/core.c	2013-07-13 14:03:57.000000000 -0400
@@ -40,6 +40,7 @@
 #include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/delay.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 
 
@@ -52,8 +53,12 @@ static struct hwrng *current_rng;
 static LIST_HEAD(rng_list);
 static DEFINE_MUTEX(rng_mutex);
 static int data_avail;
-static u8 rng_buffer[SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES]
-	__cacheline_aligned;
+static u8 *rng_buffer;
+
+static size_t rng_buffer_size(void)
+{
+	return SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES;
+}
 
 static inline int hwrng_init(struct hwrng *rng)
 {
@@ -116,7 +121,7 @@ static ssize_t rng_dev_read(struct file
 
 		if (!data_avail) {
 			bytes_read = rng_get_data(current_rng, rng_buffer,
-				sizeof(rng_buffer),
+				rng_buffer_size(),
 				!(filp->f_flags & O_NONBLOCK));
 			if (bytes_read < 0) {
 				err = bytes_read;
@@ -307,6 +312,14 @@ int hwrng_register(struct hwrng *rng)
 
 	mutex_lock(&rng_mutex);
 
+	/* kmalloc makes this safe for virt_to_page() in virtio_rng.c */
+	err = -ENOMEM;
+	if (!rng_buffer) {
+		rng_buffer = kmalloc(rng_buffer_size(), GFP_KERNEL);
+		if (!rng_buffer)
+			goto out_unlock;
+	}
+
 	/* Must not register two RNGs with the same name. */
 	err = -EEXIST;
 	list_for_each_entry(tmp, &rng_list, list) {
diff -druNp linux-libre-3.4-gnu1/drivers/char/hw_random/virtio-rng.c linux-libre-3.4.53-gnu1/drivers/char/hw_random/virtio-rng.c
--- linux-libre-3.4-gnu1/drivers/char/hw_random/virtio-rng.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/hw_random/virtio-rng.c	2013-07-13 14:03:57.000000000 -0400
@@ -89,14 +89,22 @@ static int virtrng_probe(struct virtio_d
 {
 	int err;
 
+	if (vq) {
+		/* We only support one device for now */
+		return -EBUSY;
+	}
 	/* We expect a single virtqueue. */
 	vq = virtio_find_single_vq(vdev, random_recv_done, "input");
-	if (IS_ERR(vq))
-		return PTR_ERR(vq);
+	if (IS_ERR(vq)) {
+		err = PTR_ERR(vq);
+		vq = NULL;
+		return err;
+	}
 
 	err = hwrng_register(&virtio_hwrng);
 	if (err) {
 		vdev->config->del_vqs(vdev);
+		vq = NULL;
 		return err;
 	}
 
@@ -108,6 +116,7 @@ static void __devexit virtrng_remove(str
 	vdev->config->reset(vdev);
 	hwrng_unregister(&virtio_hwrng);
 	vdev->config->del_vqs(vdev);
+	vq = NULL;
 }
 
 static struct virtio_device_id id_table[] = {
diff -druNp linux-libre-3.4-gnu1/drivers/char/ipmi/ipmi_bt_sm.c linux-libre-3.4.53-gnu1/drivers/char/ipmi/ipmi_bt_sm.c
--- linux-libre-3.4-gnu1/drivers/char/ipmi/ipmi_bt_sm.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/ipmi/ipmi_bt_sm.c	2013-07-13 14:03:57.000000000 -0400
@@ -95,9 +95,9 @@ struct si_sm_data {
 	enum bt_states	state;
 	unsigned char	seq;		/* BT sequence number */
 	struct si_sm_io	*io;
-	unsigned char	write_data[IPMI_MAX_MSG_LENGTH];
+	unsigned char	write_data[IPMI_MAX_MSG_LENGTH + 2]; /* +2 for memcpy */
 	int		write_count;
-	unsigned char	read_data[IPMI_MAX_MSG_LENGTH];
+	unsigned char	read_data[IPMI_MAX_MSG_LENGTH + 2]; /* +2 for memcpy */
 	int		read_count;
 	int		truncated;
 	long		timeout;	/* microseconds countdown */
diff -druNp linux-libre-3.4-gnu1/drivers/char/ipmi/ipmi_devintf.c linux-libre-3.4.53-gnu1/drivers/char/ipmi/ipmi_devintf.c
--- linux-libre-3.4-gnu1/drivers/char/ipmi/ipmi_devintf.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/ipmi/ipmi_devintf.c	2013-07-13 14:03:57.000000000 -0400
@@ -837,13 +837,25 @@ static long compat_ipmi_ioctl(struct fil
 		return ipmi_ioctl(filep, cmd, arg);
 	}
 }
+
+static long unlocked_compat_ipmi_ioctl(struct file *filep, unsigned int cmd,
+				       unsigned long arg)
+{
+	int ret;
+
+	mutex_lock(&ipmi_mutex);
+	ret = compat_ipmi_ioctl(filep, cmd, arg);
+	mutex_unlock(&ipmi_mutex);
+
+	return ret;
+}
 #endif
 
 static const struct file_operations ipmi_fops = {
 	.owner		= THIS_MODULE,
 	.unlocked_ioctl	= ipmi_unlocked_ioctl,
 #ifdef CONFIG_COMPAT
-	.compat_ioctl   = compat_ipmi_ioctl,
+	.compat_ioctl   = unlocked_compat_ipmi_ioctl,
 #endif
 	.open		= ipmi_open,
 	.release	= ipmi_release,
diff -druNp linux-libre-3.4-gnu1/drivers/char/mspec.c linux-libre-3.4.53-gnu1/drivers/char/mspec.c
--- linux-libre-3.4-gnu1/drivers/char/mspec.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/mspec.c	2013-07-13 14:03:57.000000000 -0400
@@ -283,7 +283,7 @@ mspec_mmap(struct file *file, struct vm_
 	vdata->flags = flags;
 	vdata->type = type;
 	spin_lock_init(&vdata->lock);
-	vdata->refcnt = ATOMIC_INIT(1);
+	atomic_set(&vdata->refcnt, 1);
 	vma->vm_private_data = vdata;
 
 	vma->vm_flags |= (VM_IO | VM_RESERVED | VM_PFNMAP | VM_DONTEXPAND);
diff -druNp linux-libre-3.4-gnu1/drivers/char/random.c linux-libre-3.4.53-gnu1/drivers/char/random.c
--- linux-libre-3.4-gnu1/drivers/char/random.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/random.c	2013-07-13 14:03:57.000000000 -0400
@@ -125,21 +125,26 @@
  * The current exported interfaces for gathering environmental noise
  * from the devices are:
  *
+ *	void add_device_randomness(const void *buf, unsigned int size);
  * 	void add_input_randomness(unsigned int type, unsigned int code,
  *                                unsigned int value);
- * 	void add_interrupt_randomness(int irq);
+ *	void add_interrupt_randomness(int irq, int irq_flags);
  * 	void add_disk_randomness(struct gendisk *disk);
  *
+ * add_device_randomness() is for adding data to the random pool that
+ * is likely to differ between two devices (or possibly even per boot).
+ * This would be things like MAC addresses or serial numbers, or the
+ * read-out of the RTC. This does *not* add any actual entropy to the
+ * pool, but it initializes the pool to different values for devices
+ * that might otherwise be identical and have very little entropy
+ * available to them (particularly common in the embedded world).
+ *
  * add_input_randomness() uses the input layer interrupt timing, as well as
  * the event type information from the hardware.
  *
- * add_interrupt_randomness() uses the inter-interrupt timing as random
- * inputs to the entropy pool.  Note that not all interrupts are good
- * sources of randomness!  For example, the timer interrupts is not a
- * good choice, because the periodicity of the interrupts is too
- * regular, and hence predictable to an attacker.  Network Interface
- * Controller interrupts are a better measure, since the timing of the
- * NIC interrupts are more unpredictable.
+ * add_interrupt_randomness() uses the interrupt timing as random
+ * inputs to the entropy pool. Using the cycle counters and the irq source
+ * as inputs, it feeds the randomness roughly once a second.
  *
  * add_disk_randomness() uses what amounts to the seek time of block
  * layer request events, on a per-disk_devt basis, as input to the
@@ -248,6 +253,8 @@
 #include <linux/percpu.h>
 #include <linux/cryptohash.h>
 #include <linux/fips.h>
+#include <linux/ptrace.h>
+#include <linux/kmemcheck.h>
 
 #ifdef CONFIG_GENERIC_HARDIRQS
 # include <linux/irq.h>
@@ -256,8 +263,12 @@
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/irq.h>
+#include <asm/irq_regs.h>
 #include <asm/io.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/random.h>
+
 /*
  * Configuration information
  */
@@ -266,6 +277,8 @@
 #define SEC_XFER_SIZE 512
 #define EXTRACT_SIZE 10
 
+#define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
+
 /*
  * The minimum number of bits of entropy before we wake up a read on
  * /dev/random.  Should be enough to do a significant reseed.
@@ -420,8 +433,10 @@ struct entropy_store {
 	/* read-write data: */
 	spinlock_t lock;
 	unsigned add_ptr;
+	unsigned input_rotate;
 	int entropy_count;
-	int input_rotate;
+	int entropy_total;
+	unsigned int initialized:1;
 	__u8 last_data[EXTRACT_SIZE];
 };
 
@@ -454,6 +469,10 @@ static struct entropy_store nonblocking_
 	.pool = nonblocking_pool_data
 };
 
+static __u32 const twist_table[8] = {
+	0x00000000, 0x3b6e20c8, 0x76dc4190, 0x4db26158,
+	0xedb88320, 0xd6d6a3e8, 0x9b64c2b0, 0xa00ae278 };
+
 /*
  * This function adds bytes into the entropy "pool".  It does not
  * update the entropy estimate.  The caller should call
@@ -464,29 +483,24 @@ static struct entropy_store nonblocking_
  * it's cheap to do so and helps slightly in the expected case where
  * the entropy is concentrated in the low-order bits.
  */
-static void mix_pool_bytes_extract(struct entropy_store *r, const void *in,
-				   int nbytes, __u8 out[64])
+static void _mix_pool_bytes(struct entropy_store *r, const void *in,
+			    int nbytes, __u8 out[64])
 {
-	static __u32 const twist_table[8] = {
-		0x00000000, 0x3b6e20c8, 0x76dc4190, 0x4db26158,
-		0xedb88320, 0xd6d6a3e8, 0x9b64c2b0, 0xa00ae278 };
 	unsigned long i, j, tap1, tap2, tap3, tap4, tap5;
 	int input_rotate;
 	int wordmask = r->poolinfo->poolwords - 1;
 	const char *bytes = in;
 	__u32 w;
-	unsigned long flags;
 
-	/* Taps are constant, so we can load them without holding r->lock.  */
 	tap1 = r->poolinfo->tap1;
 	tap2 = r->poolinfo->tap2;
 	tap3 = r->poolinfo->tap3;
 	tap4 = r->poolinfo->tap4;
 	tap5 = r->poolinfo->tap5;
 
-	spin_lock_irqsave(&r->lock, flags);
-	input_rotate = r->input_rotate;
-	i = r->add_ptr;
+	smp_rmb();
+	input_rotate = ACCESS_ONCE(r->input_rotate);
+	i = ACCESS_ONCE(r->add_ptr);
 
 	/* mix one byte at a time to simplify size handling and churn faster */
 	while (nbytes--) {
@@ -513,19 +527,61 @@ static void mix_pool_bytes_extract(struc
 		input_rotate += i ? 7 : 14;
 	}
 
-	r->input_rotate = input_rotate;
-	r->add_ptr = i;
+	ACCESS_ONCE(r->input_rotate) = input_rotate;
+	ACCESS_ONCE(r->add_ptr) = i;
+	smp_wmb();
 
 	if (out)
 		for (j = 0; j < 16; j++)
 			((__u32 *)out)[j] = r->pool[(i - j) & wordmask];
+}
+
+static void __mix_pool_bytes(struct entropy_store *r, const void *in,
+			     int nbytes, __u8 out[64])
+{
+	trace_mix_pool_bytes_nolock(r->name, nbytes, _RET_IP_);
+	_mix_pool_bytes(r, in, nbytes, out);
+}
+
+static void mix_pool_bytes(struct entropy_store *r, const void *in,
+			   int nbytes, __u8 out[64])
+{
+	unsigned long flags;
 
+	trace_mix_pool_bytes(r->name, nbytes, _RET_IP_);
+	spin_lock_irqsave(&r->lock, flags);
+	_mix_pool_bytes(r, in, nbytes, out);
 	spin_unlock_irqrestore(&r->lock, flags);
 }
 
-static void mix_pool_bytes(struct entropy_store *r, const void *in, int bytes)
+struct fast_pool {
+	__u32		pool[4];
+	unsigned long	last;
+	unsigned short	count;
+	unsigned char	rotate;
+	unsigned char	last_timer_intr;
+};
+
+/*
+ * This is a fast mixing routine used by the interrupt randomness
+ * collector.  It's hardcoded for an 128 bit pool and assumes that any
+ * locks that might be needed are taken by the caller.
+ */
+static void fast_mix(struct fast_pool *f, const void *in, int nbytes)
 {
-       mix_pool_bytes_extract(r, in, bytes, NULL);
+	const char	*bytes = in;
+	__u32		w;
+	unsigned	i = f->count;
+	unsigned	input_rotate = f->rotate;
+
+	while (nbytes--) {
+		w = rol32(*bytes++, input_rotate & 31) ^ f->pool[i & 3] ^
+			f->pool[(i + 1) & 3];
+		f->pool[i & 3] = (w >> 3) ^ twist_table[w & 7];
+		input_rotate += (i++ & 3) ? 7 : 14;
+	}
+	f->count = i;
+	f->rotate = input_rotate;
 }
 
 /*
@@ -533,30 +589,38 @@ static void mix_pool_bytes(struct entrop
  */
 static void credit_entropy_bits(struct entropy_store *r, int nbits)
 {
-	unsigned long flags;
-	int entropy_count;
+	int entropy_count, orig;
 
 	if (!nbits)
 		return;
 
-	spin_lock_irqsave(&r->lock, flags);
-
 	DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name);
-	entropy_count = r->entropy_count;
+retry:
+	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
 	entropy_count += nbits;
+
 	if (entropy_count < 0) {
 		DEBUG_ENT("negative entropy/overflow\n");
 		entropy_count = 0;
 	} else if (entropy_count > r->poolinfo->POOLBITS)
 		entropy_count = r->poolinfo->POOLBITS;
-	r->entropy_count = entropy_count;
+	if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+		goto retry;
+
+	if (!r->initialized && nbits > 0) {
+		r->entropy_total += nbits;
+		if (r->entropy_total > 128)
+			r->initialized = 1;
+	}
+
+	trace_credit_entropy_bits(r->name, nbits, entropy_count,
+				  r->entropy_total, _RET_IP_);
 
 	/* should we wake readers? */
 	if (r == &input_pool && entropy_count >= random_read_wakeup_thresh) {
 		wake_up_interruptible(&random_read_wait);
 		kill_fasync(&fasync, SIGIO, POLL_IN);
 	}
-	spin_unlock_irqrestore(&r->lock, flags);
 }
 
 /*********************************************************************
@@ -572,42 +636,24 @@ struct timer_rand_state {
 	unsigned dont_count_entropy:1;
 };
 
-#ifndef CONFIG_GENERIC_HARDIRQS
-
-static struct timer_rand_state *irq_timer_state[NR_IRQS];
-
-static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
-{
-	return irq_timer_state[irq];
-}
-
-static void set_timer_rand_state(unsigned int irq,
-				 struct timer_rand_state *state)
-{
-	irq_timer_state[irq] = state;
-}
-
-#else
-
-static struct timer_rand_state *get_timer_rand_state(unsigned int irq)
-{
-	struct irq_desc *desc;
-
-	desc = irq_to_desc(irq);
-
-	return desc->timer_rand_state;
-}
-
-static void set_timer_rand_state(unsigned int irq,
-				 struct timer_rand_state *state)
+/*
+ * Add device- or boot-specific data to the input and nonblocking
+ * pools to help initialize them to unique values.
+ *
+ * None of this adds any entropy, it is meant to avoid the
+ * problem of the nonblocking pool having similar initial state
+ * across largely identical devices.
+ */
+void add_device_randomness(const void *buf, unsigned int size)
 {
-	struct irq_desc *desc;
-
-	desc = irq_to_desc(irq);
+	unsigned long time = get_cycles() ^ jiffies;
 
-	desc->timer_rand_state = state;
+	mix_pool_bytes(&input_pool, buf, size, NULL);
+	mix_pool_bytes(&input_pool, &time, sizeof(time), NULL);
+	mix_pool_bytes(&nonblocking_pool, buf, size, NULL);
+	mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL);
 }
-#endif
+EXPORT_SYMBOL(add_device_randomness);
 
 static struct timer_rand_state input_timer_state;
 
@@ -637,13 +683,9 @@ static void add_timer_randomness(struct
 		goto out;
 
 	sample.jiffies = jiffies;
-
-	/* Use arch random value, fall back to cycles */
-	if (!arch_get_random_int(&sample.cycles))
-		sample.cycles = get_cycles();
-
+	sample.cycles = get_cycles();
 	sample.num = num;
-	mix_pool_bytes(&input_pool, &sample, sizeof(sample));
+	mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL);
 
 	/*
 	 * Calculate number of bits of randomness we probably added.
@@ -700,17 +742,48 @@ void add_input_randomness(unsigned int t
 }
 EXPORT_SYMBOL_GPL(add_input_randomness);
 
-void add_interrupt_randomness(int irq)
+static DEFINE_PER_CPU(struct fast_pool, irq_randomness);
+
+void add_interrupt_randomness(int irq, int irq_flags)
 {
-	struct timer_rand_state *state;
+	struct entropy_store	*r;
+	struct fast_pool	*fast_pool = &__get_cpu_var(irq_randomness);
+	struct pt_regs		*regs = get_irq_regs();
+	unsigned long		now = jiffies;
+	__u32			input[4], cycles = get_cycles();
 
-	state = get_timer_rand_state(irq);
+	input[0] = cycles ^ jiffies;
+	input[1] = irq;
+	if (regs) {
+		__u64 ip = instruction_pointer(regs);
+		input[2] = ip;
+		input[3] = ip >> 32;
+	}
 
-	if (state == NULL)
+	fast_mix(fast_pool, input, sizeof(input));
+
+	if ((fast_pool->count & 1023) &&
+	    !time_after(now, fast_pool->last + HZ))
 		return;
 
-	DEBUG_ENT("irq event %d\n", irq);
-	add_timer_randomness(state, 0x100 + irq);
+	fast_pool->last = now;
+
+	r = nonblocking_pool.initialized ? &input_pool : &nonblocking_pool;
+	__mix_pool_bytes(r, &fast_pool->pool, sizeof(fast_pool->pool), NULL);
+	/*
+	 * If we don't have a valid cycle counter, and we see
+	 * back-to-back timer interrupts, then skip giving credit for
+	 * any entropy.
+	 */
+	if (cycles == 0) {
+		if (irq_flags & __IRQF_TIMER) {
+			if (fast_pool->last_timer_intr)
+				return;
+			fast_pool->last_timer_intr = 1;
+		} else
+			fast_pool->last_timer_intr = 0;
+	}
+	credit_entropy_bits(r, 1);
 }
 
 #ifdef CONFIG_BLOCK
@@ -742,7 +815,7 @@ static ssize_t extract_entropy(struct en
  */
 static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 {
-	__u32 tmp[OUTPUT_POOL_WORDS];
+	__u32	tmp[OUTPUT_POOL_WORDS];
 
 	if (r->pull && r->entropy_count < nbytes * 8 &&
 	    r->entropy_count < r->poolinfo->POOLBITS) {
@@ -761,7 +834,7 @@ static void xfer_secondary_pool(struct e
 
 		bytes = extract_entropy(r->pull, tmp, bytes,
 					random_read_wakeup_thresh / 8, rsvd);
-		mix_pool_bytes(r, tmp, bytes);
+		mix_pool_bytes(r, tmp, bytes, NULL);
 		credit_entropy_bits(r, bytes*8);
 	}
 }
@@ -820,13 +893,19 @@ static size_t account(struct entropy_sto
 static void extract_buf(struct entropy_store *r, __u8 *out)
 {
 	int i;
-	__u32 hash[5], workspace[SHA_WORKSPACE_WORDS];
+	union {
+		__u32 w[5];
+		unsigned long l[LONGS(EXTRACT_SIZE)];
+	} hash;
+	__u32 workspace[SHA_WORKSPACE_WORDS];
 	__u8 extract[64];
+	unsigned long flags;
 
 	/* Generate a hash across the pool, 16 words (512 bits) at a time */
-	sha_init(hash);
+	sha_init(hash.w);
+	spin_lock_irqsave(&r->lock, flags);
 	for (i = 0; i < r->poolinfo->poolwords; i += 16)
-		sha_transform(hash, (__u8 *)(r->pool + i), workspace);
+		sha_transform(hash.w, (__u8 *)(r->pool + i), workspace);
 
 	/*
 	 * We mix the hash back into the pool to prevent backtracking
@@ -837,13 +916,14 @@ static void extract_buf(struct entropy_s
 	 * brute-forcing the feedback as hard as brute-forcing the
 	 * hash.
 	 */
-	mix_pool_bytes_extract(r, hash, sizeof(hash), extract);
+	__mix_pool_bytes(r, hash.w, sizeof(hash.w), extract);
+	spin_unlock_irqrestore(&r->lock, flags);
 
 	/*
 	 * To avoid duplicates, we atomically extract a portion of the
 	 * pool while mixing, and hash one final time.
 	 */
-	sha_transform(hash, extract, workspace);
+	sha_transform(hash.w, extract, workspace);
 	memset(extract, 0, sizeof(extract));
 	memset(workspace, 0, sizeof(workspace));
 
@@ -852,20 +932,32 @@ static void extract_buf(struct entropy_s
 	 * pattern, we fold it in half. Thus, we always feed back
 	 * twice as much data as we output.
 	 */
-	hash[0] ^= hash[3];
-	hash[1] ^= hash[4];
-	hash[2] ^= rol32(hash[2], 16);
-	memcpy(out, hash, EXTRACT_SIZE);
-	memset(hash, 0, sizeof(hash));
+	hash.w[0] ^= hash.w[3];
+	hash.w[1] ^= hash.w[4];
+	hash.w[2] ^= rol32(hash.w[2], 16);
+
+	/*
+	 * If we have a architectural hardware random number
+	 * generator, mix that in, too.
+	 */
+	for (i = 0; i < LONGS(EXTRACT_SIZE); i++) {
+		unsigned long v;
+		if (!arch_get_random_long(&v))
+			break;
+		hash.l[i] ^= v;
+	}
+
+	memcpy(out, &hash, EXTRACT_SIZE);
+	memset(&hash, 0, sizeof(hash));
 }
 
 static ssize_t extract_entropy(struct entropy_store *r, void *buf,
-			       size_t nbytes, int min, int reserved)
+				 size_t nbytes, int min, int reserved)
 {
 	ssize_t ret = 0, i;
 	__u8 tmp[EXTRACT_SIZE];
-	unsigned long flags;
 
+	trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
 	nbytes = account(r, nbytes, min, reserved);
 
@@ -873,6 +965,8 @@ static ssize_t extract_entropy(struct en
 		extract_buf(r, tmp);
 
 		if (fips_enabled) {
+			unsigned long flags;
+
 			spin_lock_irqsave(&r->lock, flags);
 			if (!memcmp(tmp, r->last_data, EXTRACT_SIZE))
 				panic("Hardware RNG duplicated output!\n");
@@ -898,6 +992,7 @@ static ssize_t extract_entropy_user(stru
 	ssize_t ret = 0, i;
 	__u8 tmp[EXTRACT_SIZE];
 
+	trace_extract_entropy_user(r->name, nbytes, r->entropy_count, _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
 	nbytes = account(r, nbytes, 0, 0);
 
@@ -931,17 +1026,35 @@ static ssize_t extract_entropy_user(stru
 
 /*
  * This function is the exported kernel interface.  It returns some
- * number of good random numbers, suitable for seeding TCP sequence
- * numbers, etc.
+ * number of good random numbers, suitable for key generation, seeding
+ * TCP sequence numbers, etc.  It does not use the hw random number
+ * generator, if available; use get_random_bytes_arch() for that.
  */
 void get_random_bytes(void *buf, int nbytes)
 {
+	extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0);
+}
+EXPORT_SYMBOL(get_random_bytes);
+
+/*
+ * This function will use the architecture-specific hardware random
+ * number generator if it is available.  The arch-specific hw RNG will
+ * almost certainly be faster than what we can do in software, but it
+ * is impossible to verify that it is implemented securely (as
+ * opposed, to, say, the AES encryption of a sequence number using a
+ * key known by the NSA).  So it's useful if we need the speed, but
+ * only if we're willing to trust the hardware manufacturer not to
+ * have put in a back door.
+ */
+void get_random_bytes_arch(void *buf, int nbytes)
+{
 	char *p = buf;
 
+	trace_get_random_bytes(nbytes, _RET_IP_);
 	while (nbytes) {
 		unsigned long v;
 		int chunk = min(nbytes, (int)sizeof(unsigned long));
-		
+
 		if (!arch_get_random_long(&v))
 			break;
 		
@@ -950,9 +1063,11 @@ void get_random_bytes(void *buf, int nby
 		nbytes -= chunk;
 	}
 
-	extract_entropy(&nonblocking_pool, p, nbytes, 0, 0);
+	if (nbytes)
+		extract_entropy(&nonblocking_pool, p, nbytes, 0, 0);
 }
-EXPORT_SYMBOL(get_random_bytes);
+EXPORT_SYMBOL(get_random_bytes_arch);
+
 
 /*
  * init_std_data - initialize pool with system data
@@ -966,23 +1081,30 @@ EXPORT_SYMBOL(get_random_bytes);
 static void init_std_data(struct entropy_store *r)
 {
 	int i;
-	ktime_t now;
-	unsigned long flags;
+	ktime_t now = ktime_get_real();
+	unsigned long rv;
 
-	spin_lock_irqsave(&r->lock, flags);
 	r->entropy_count = 0;
-	spin_unlock_irqrestore(&r->lock, flags);
-
-	now = ktime_get_real();
-	mix_pool_bytes(r, &now, sizeof(now));
-	for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof flags) {
-		if (!arch_get_random_long(&flags))
+	r->entropy_total = 0;
+	mix_pool_bytes(r, &now, sizeof(now), NULL);
+	for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof(rv)) {
+		if (!arch_get_random_long(&rv))
 			break;
-		mix_pool_bytes(r, &flags, sizeof(flags));
+		mix_pool_bytes(r, &rv, sizeof(rv), NULL);
 	}
-	mix_pool_bytes(r, utsname(), sizeof(*(utsname())));
+	mix_pool_bytes(r, utsname(), sizeof(*(utsname())), NULL);
 }
 
+/*
+ * Note that setup_arch() may call add_device_randomness()
+ * long before we get here. This allows seeding of the pools
+ * with some platform dependent data very early in the boot
+ * process. But it limits our options here. We must use
+ * statically allocated structures that already have all
+ * initializations complete at compile time. We should also
+ * take care not to overwrite the precious per platform data
+ * we were given.
+ */
 static int rand_initialize(void)
 {
 	init_std_data(&input_pool);
@@ -992,24 +1114,6 @@ static int rand_initialize(void)
 }
 module_init(rand_initialize);
 
-void rand_initialize_irq(int irq)
-{
-	struct timer_rand_state *state;
-
-	state = get_timer_rand_state(irq);
-
-	if (state)
-		return;
-
-	/*
-	 * If kzalloc returns null, we just won't use that entropy
-	 * source.
-	 */
-	state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
-	if (state)
-		set_timer_rand_state(irq, state);
-}
-
 #ifdef CONFIG_BLOCK
 void rand_initialize_disk(struct gendisk *disk)
 {
@@ -1117,7 +1221,7 @@ write_pool(struct entropy_store *r, cons
 		count -= bytes;
 		p += bytes;
 
-		mix_pool_bytes(r, buf, bytes);
+		mix_pool_bytes(r, buf, bytes, NULL);
 		cond_resched();
 	}
 
diff -druNp linux-libre-3.4-gnu1/drivers/char/tpm/tpm.c linux-libre-3.4.53-gnu1/drivers/char/tpm/tpm.c
--- linux-libre-3.4-gnu1/drivers/char/tpm/tpm.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/tpm/tpm.c	2013-07-13 14:03:57.000000000 -0400
@@ -827,10 +827,10 @@ EXPORT_SYMBOL_GPL(tpm_pcr_extend);
 int tpm_do_selftest(struct tpm_chip *chip)
 {
 	int rc;
-	u8 digest[TPM_DIGEST_SIZE];
 	unsigned int loops;
 	unsigned int delay_msec = 1000;
 	unsigned long duration;
+	struct tpm_cmd_t cmd;
 
 	duration = tpm_calc_ordinal_duration(chip,
 	                                     TPM_ORD_CONTINUE_SELFTEST);
@@ -845,7 +845,15 @@ int tpm_do_selftest(struct tpm_chip *chi
 		return rc;
 
 	do {
-		rc = __tpm_pcr_read(chip, 0, digest);
+		/* Attempt to read a PCR value */
+		cmd.header.in = pcrread_header;
+		cmd.params.pcrread_in.pcr_idx = cpu_to_be32(0);
+		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);
+
+		if (rc < TPM_HEADER_SIZE)
+			return -EFAULT;
+
+		rc = be32_to_cpu(cmd.header.out.return_code);
 		if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
 			dev_info(chip->dev,
 				 "TPM is disabled/deactivated (0x%X)\n", rc);
@@ -1178,17 +1186,20 @@ ssize_t tpm_write(struct file *file, con
 		  size_t size, loff_t *off)
 {
 	struct tpm_chip *chip = file->private_data;
-	size_t in_size = size, out_size;
+	size_t in_size = size;
+	ssize_t out_size;
 
 	/* cannot perform a write until the read has cleared
-	   either via tpm_read or a user_read_timer timeout */
-	while (atomic_read(&chip->data_pending) != 0)
-		msleep(TPM_TIMEOUT);
-
-	mutex_lock(&chip->buffer_mutex);
+	   either via tpm_read or a user_read_timer timeout.
+	   This also prevents splitted buffered writes from blocking here.
+	*/
+	if (atomic_read(&chip->data_pending) != 0)
+		return -EBUSY;
 
 	if (in_size > TPM_BUFSIZE)
-		in_size = TPM_BUFSIZE;
+		return -E2BIG;
+
+	mutex_lock(&chip->buffer_mutex);
 
 	if (copy_from_user
 	    (chip->data_buffer, (void __user *) buf, in_size)) {
@@ -1198,6 +1209,10 @@ ssize_t tpm_write(struct file *file, con
 
 	/* atomic tpm command send and result receive */
 	out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
+	if (out_size < 0) {
+		mutex_unlock(&chip->buffer_mutex);
+		return out_size;
+	}
 
 	atomic_set(&chip->data_pending, out_size);
 	mutex_unlock(&chip->buffer_mutex);
diff -druNp linux-libre-3.4-gnu1/drivers/char/ttyprintk.c linux-libre-3.4.53-gnu1/drivers/char/ttyprintk.c
--- linux-libre-3.4-gnu1/drivers/char/ttyprintk.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/ttyprintk.c	2013-07-13 14:03:57.000000000 -0400
@@ -67,7 +67,7 @@ static int tpk_printk(const unsigned cha
 				tmp[tpk_curr + 1] = '\0';
 				printk(KERN_INFO "%s%s", tpk_tag, tmp);
 				tpk_curr = 0;
-				if (buf[i + 1] == '\n')
+				if ((i + 1) < count && buf[i + 1] == '\n')
 					i++;
 				break;
 			case '\n':
diff -druNp linux-libre-3.4-gnu1/drivers/char/virtio_console.c linux-libre-3.4.53-gnu1/drivers/char/virtio_console.c
--- linux-libre-3.4-gnu1/drivers/char/virtio_console.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/char/virtio_console.c	2013-07-13 14:03:57.000000000 -0400
@@ -1808,7 +1808,8 @@ static void virtcons_remove(struct virti
 	/* Disable interrupts for vqs */
 	vdev->config->reset(vdev);
 	/* Finish up work that's lined up */
-	cancel_work_sync(&portdev->control_work);
+	if (use_multiport(portdev))
+		cancel_work_sync(&portdev->control_work);
 
 	list_for_each_entry_safe(port, port2, &portdev->ports, list)
 		unplug_port(port);
diff -druNp linux-libre-3.4-gnu1/drivers/clk/clk.c linux-libre-3.4.53-gnu1/drivers/clk/clk.c
--- linux-libre-3.4-gnu1/drivers/clk/clk.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/clk/clk.c	2013-07-13 14:03:57.000000000 -0400
@@ -834,18 +834,21 @@ static void clk_change_rate(struct clk *
 {
 	struct clk *child;
 	unsigned long old_rate;
+	unsigned long best_parent_rate = 0;
 	struct hlist_node *tmp;
 
 	old_rate = clk->rate;
 
+	if (clk->parent)
+		best_parent_rate = clk->parent->rate;
+
 	if (clk->ops->set_rate)
 		clk->ops->set_rate(clk->hw, clk->new_rate);
 
 	if (clk->ops->recalc_rate)
-		clk->rate = clk->ops->recalc_rate(clk->hw,
-				clk->parent->rate);
+		clk->rate = clk->ops->recalc_rate(clk->hw, best_parent_rate);
 	else
-		clk->rate = clk->parent->rate;
+		clk->rate = best_parent_rate;
 
 	if (clk->notifier_count && old_rate != clk->rate)
 		__clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate);
@@ -997,7 +1000,7 @@ static struct clk *__clk_init_parent(str
 
 	if (!clk->parents)
 		clk->parents =
-			kmalloc((sizeof(struct clk*) * clk->num_parents),
+			kzalloc((sizeof(struct clk*) * clk->num_parents),
 					GFP_KERNEL);
 
 	if (!clk->parents)
@@ -1062,21 +1065,24 @@ static int __clk_set_parent(struct clk *
 
 	old_parent = clk->parent;
 
-	/* find index of new parent clock using cached parent ptrs */
-	for (i = 0; i < clk->num_parents; i++)
-		if (clk->parents[i] == parent)
-			break;
+	if (!clk->parents)
+		clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
+								GFP_KERNEL);
 
 	/*
-	 * find index of new parent clock using string name comparison
-	 * also try to cache the parent to avoid future calls to __clk_lookup
+	 * find index of new parent clock using cached parent ptrs,
+	 * or if not yet cached, use string name comparison and cache
+	 * them now to avoid future calls to __clk_lookup.
 	 */
-	if (i == clk->num_parents)
-		for (i = 0; i < clk->num_parents; i++)
-			if (!strcmp(clk->parent_names[i], parent->name)) {
+	for (i = 0; i < clk->num_parents; i++) {
+		if (clk->parents && clk->parents[i] == parent)
+			break;
+		else if (!strcmp(clk->parent_names[i], parent->name)) {
+			if (clk->parents)
 				clk->parents[i] = __clk_lookup(parent->name);
-				break;
-			}
+			break;
+		}
+	}
 
 	if (i == clk->num_parents) {
 		pr_debug("%s: clock %s is not a possible parent of clock %s\n",
@@ -1447,6 +1453,7 @@ int clk_notifier_unregister(struct clk *
 		/* XXX the notifier code should handle this better */
 		if (!cn->notifier_head.head) {
 			srcu_cleanup_notifier_head(&cn->notifier_head);
+			list_del(&cn->node);
 			kfree(cn);
 		}
 
diff -druNp linux-libre-3.4-gnu1/drivers/cpufreq/cpufreq_stats.c linux-libre-3.4.53-gnu1/drivers/cpufreq/cpufreq_stats.c
--- linux-libre-3.4-gnu1/drivers/cpufreq/cpufreq_stats.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/cpufreq/cpufreq_stats.c	2013-07-13 14:03:57.000000000 -0400
@@ -328,6 +328,7 @@ static int __cpuinit cpufreq_stat_cpu_ca
 		cpufreq_update_policy(cpu);
 		break;
 	case CPU_DOWN_PREPARE:
+	case CPU_DOWN_PREPARE_FROZEN:
 		cpufreq_stats_free_sysfs(cpu);
 		break;
 	case CPU_DEAD:
diff -druNp linux-libre-3.4-gnu1/drivers/cpufreq/longhaul.c linux-libre-3.4.53-gnu1/drivers/cpufreq/longhaul.c
--- linux-libre-3.4-gnu1/drivers/cpufreq/longhaul.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/cpufreq/longhaul.c	2013-07-13 14:03:57.000000000 -0400
@@ -77,7 +77,7 @@ static unsigned int longhaul_index;
 static int scale_voltage;
 static int disable_acpi_c3;
 static int revid_errata;
-
+static int enable;
 
 /* Clock ratios multiplied by 10 */
 static int mults[32];
@@ -965,6 +965,10 @@ static int __init longhaul_init(void)
 	if (!x86_match_cpu(longhaul_id))
 		return -ENODEV;
 
+	if (!enable) {
+		printk(KERN_ERR PFX "Option \"enable\" not set. Aborting.\n");
+		return -ENODEV;
+	}
 #ifdef CONFIG_SMP
 	if (num_online_cpus() > 1) {
 		printk(KERN_ERR PFX "More than 1 CPU detected, "
@@ -1021,6 +1025,10 @@ MODULE_PARM_DESC(scale_voltage, "Scale v
  * such. */
 module_param(revid_errata, int, 0644);
 MODULE_PARM_DESC(revid_errata, "Ignore CPU Revision ID");
+/* By default driver is disabled to prevent incompatible
+ * system freeze. */
+module_param(enable, int, 0644);
+MODULE_PARM_DESC(enable, "Enable driver");
 
 MODULE_AUTHOR("Dave Jones <davej@redhat.com>");
 MODULE_DESCRIPTION("Longhaul driver for VIA Cyrix processors.");
diff -druNp linux-libre-3.4-gnu1/drivers/cpufreq/powernow-k8.c linux-libre-3.4.53-gnu1/drivers/cpufreq/powernow-k8.c
--- linux-libre-3.4-gnu1/drivers/cpufreq/powernow-k8.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/cpufreq/powernow-k8.c	2013-07-13 14:03:57.000000000 -0400
@@ -35,7 +35,6 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/cpumask.h>
-#include <linux/sched.h>	/* for current / set_cpus_allowed() */
 #include <linux/io.h>
 #include <linux/delay.h>
 
@@ -1139,16 +1138,23 @@ static int transition_frequency_pstate(s
 	return res;
 }
 
-/* Driver entry point to switch to the target frequency */
-static int powernowk8_target(struct cpufreq_policy *pol,
-		unsigned targfreq, unsigned relation)
+struct powernowk8_target_arg {
+	struct cpufreq_policy		*pol;
+	unsigned			targfreq;
+	unsigned			relation;
+};
+
+static long powernowk8_target_fn(void *arg)
 {
-	cpumask_var_t oldmask;
+	struct powernowk8_target_arg *pta = arg;
+	struct cpufreq_policy *pol = pta->pol;
+	unsigned targfreq = pta->targfreq;
+	unsigned relation = pta->relation;
 	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 	u32 checkfid;
 	u32 checkvid;
 	unsigned int newstate;
-	int ret = -EIO;
+	int ret;
 
 	if (!data)
 		return -EINVAL;
@@ -1156,29 +1162,16 @@ static int powernowk8_target(struct cpuf
 	checkfid = data->currfid;
 	checkvid = data->currvid;
 
-	/* only run on specific CPU from here on. */
-	/* This is poor form: use a workqueue or smp_call_function_single */
-	if (!alloc_cpumask_var(&oldmask, GFP_KERNEL))
-		return -ENOMEM;
-
-	cpumask_copy(oldmask, tsk_cpus_allowed(current));
-	set_cpus_allowed_ptr(current, cpumask_of(pol->cpu));
-
-	if (smp_processor_id() != pol->cpu) {
-		printk(KERN_ERR PFX "limiting to cpu %u failed\n", pol->cpu);
-		goto err_out;
-	}
-
 	if (pending_bit_stuck()) {
 		printk(KERN_ERR PFX "failing targ, change pending bit set\n");
-		goto err_out;
+		return -EIO;
 	}
 
 	pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n",
 		pol->cpu, targfreq, pol->min, pol->max, relation);
 
 	if (query_current_values_with_pending_wait(data))
-		goto err_out;
+		return -EIO;
 
 	if (cpu_family != CPU_HW_PSTATE) {
 		pr_debug("targ: curr fid 0x%x, vid 0x%x\n",
@@ -1196,7 +1189,7 @@ static int powernowk8_target(struct cpuf
 
 	if (cpufreq_frequency_table_target(pol, data->powernow_table,
 				targfreq, relation, &newstate))
-		goto err_out;
+		return -EIO;
 
 	mutex_lock(&fidvid_mutex);
 
@@ -1209,9 +1202,8 @@ static int powernowk8_target(struct cpuf
 		ret = transition_frequency_fidvid(data, newstate);
 	if (ret) {
 		printk(KERN_ERR PFX "transition frequency failed\n");
-		ret = 1;
 		mutex_unlock(&fidvid_mutex);
-		goto err_out;
+		return 1;
 	}
 	mutex_unlock(&fidvid_mutex);
 
@@ -1220,12 +1212,18 @@ static int powernowk8_target(struct cpuf
 				data->powernow_table[newstate].index);
 	else
 		pol->cur = find_khz_freq_from_fid(data->currfid);
-	ret = 0;
 
-err_out:
-	set_cpus_allowed_ptr(current, oldmask);
-	free_cpumask_var(oldmask);
-	return ret;
+	return 0;
+}
+
+/* Driver entry point to switch to the target frequency */
+static int powernowk8_target(struct cpufreq_policy *pol,
+		unsigned targfreq, unsigned relation)
+{
+	struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq,
+					     .relation = relation };
+
+	return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
 }
 
 /* Driver entry point to verify the policy and range of frequencies */
diff -druNp linux-libre-3.4-gnu1/drivers/dca/dca-core.c linux-libre-3.4.53-gnu1/drivers/dca/dca-core.c
--- linux-libre-3.4-gnu1/drivers/dca/dca-core.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dca/dca-core.c	2013-07-13 14:03:57.000000000 -0400
@@ -420,6 +420,11 @@ void unregister_dca_provider(struct dca_
 
 	raw_spin_lock_irqsave(&dca_lock, flags);
 
+	if (list_empty(&dca_domains)) {
+		raw_spin_unlock_irqrestore(&dca_lock, flags);
+		return;
+	}
+
 	list_del(&dca->node);
 
 	pci_rc = dca_pci_rc_from_dev(dev);
diff -druNp linux-libre-3.4-gnu1/drivers/dma/at_hdmac.c linux-libre-3.4.53-gnu1/drivers/dma/at_hdmac.c
--- linux-libre-3.4-gnu1/drivers/dma/at_hdmac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/at_hdmac.c	2013-07-13 14:03:57.000000000 -0400
@@ -664,7 +664,7 @@ atc_prep_slave_sg(struct dma_chan *chan,
 			flags);
 
 	if (unlikely(!atslave || !sg_len)) {
-		dev_dbg(chan2dev(chan), "prep_dma_memcpy: length is zero!\n");
+		dev_dbg(chan2dev(chan), "prep_slave_sg: sg length is zero!\n");
 		return NULL;
 	}
 
@@ -691,6 +691,11 @@ atc_prep_slave_sg(struct dma_chan *chan,
 
 			mem = sg_dma_address(sg);
 			len = sg_dma_len(sg);
+			if (unlikely(!len)) {
+				dev_dbg(chan2dev(chan),
+					"prep_slave_sg: sg(%d) data length is zero\n", i);
+				goto err;
+			}
 			mem_width = 2;
 			if (unlikely(mem & 3 || len & 3))
 				mem_width = 0;
@@ -726,6 +731,11 @@ atc_prep_slave_sg(struct dma_chan *chan,
 
 			mem = sg_dma_address(sg);
 			len = sg_dma_len(sg);
+			if (unlikely(!len)) {
+				dev_dbg(chan2dev(chan),
+					"prep_slave_sg: sg(%d) data length is zero\n", i);
+				goto err;
+			}
 			mem_width = 2;
 			if (unlikely(mem & 3 || len & 3))
 				mem_width = 0;
@@ -759,6 +769,7 @@ atc_prep_slave_sg(struct dma_chan *chan,
 
 err_desc_get:
 	dev_err(chan2dev(chan), "not enough descriptors available\n");
+err:
 	atc_desc_put(atchan, first);
 	return NULL;
 }
diff -druNp linux-libre-3.4-gnu1/drivers/dma/dmaengine.c linux-libre-3.4.53-gnu1/drivers/dma/dmaengine.c
--- linux-libre-3.4-gnu1/drivers/dma/dmaengine.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/dmaengine.c	2013-07-13 14:03:57.000000000 -0400
@@ -578,7 +578,7 @@ void dmaengine_get(void)
 				list_del_rcu(&device->global_node);
 				break;
 			} else if (err)
-				pr_err("%s: failed to get %s: (%d)\n",
+				pr_debug("%s: failed to get %s: (%d)\n",
 					__func__, dma_chan_name(chan), err);
 		}
 	}
diff -druNp linux-libre-3.4-gnu1/drivers/dma/imx-dma.c linux-libre-3.4.53-gnu1/drivers/dma/imx-dma.c
--- linux-libre-3.4-gnu1/drivers/dma/imx-dma.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/imx-dma.c	2013-07-13 14:03:57.000000000 -0400
@@ -473,8 +473,10 @@ static int imxdma_xfer_desc(struct imxdm
 			slot = i;
 			break;
 		}
-		if (slot < 0)
+		if (slot < 0) {
+			spin_unlock_irqrestore(&imxdma->lock, flags);
 			return -EBUSY;
+		}
 
 		imxdma->slots_2d[slot].xsr = d->x;
 		imxdma->slots_2d[slot].ysr = d->y;
diff -druNp linux-libre-3.4-gnu1/drivers/dma/ioat/dma_v3.c linux-libre-3.4.53-gnu1/drivers/dma/ioat/dma_v3.c
--- linux-libre-3.4-gnu1/drivers/dma/ioat/dma_v3.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/ioat/dma_v3.c	2013-07-13 14:03:57.000000000 -0400
@@ -951,7 +951,7 @@ static int __devinit ioat_xor_val_self_t
 			goto free_resources;
 		}
 	}
-	dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_TO_DEVICE);
+	dma_sync_single_for_device(dev, dest_dma, PAGE_SIZE, DMA_FROM_DEVICE);
 
 	/* skip validate if the capability is not present */
 	if (!dma_has_cap(DMA_XOR_VAL, dma_chan->device->cap_mask))
diff -druNp linux-libre-3.4-gnu1/drivers/dma/pch_dma.c linux-libre-3.4.53-gnu1/drivers/dma/pch_dma.c
--- linux-libre-3.4-gnu1/drivers/dma/pch_dma.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/pch_dma.c	2013-07-13 14:03:57.000000000 -0400
@@ -476,7 +476,7 @@ static struct pch_dma_desc *pdc_desc_get
 	dev_dbg(chan2dev(&pd_chan->chan), "scanned %d descriptors\n", i);
 
 	if (!ret) {
-		ret = pdc_alloc_desc(&pd_chan->chan, GFP_NOIO);
+		ret = pdc_alloc_desc(&pd_chan->chan, GFP_ATOMIC);
 		if (ret) {
 			spin_lock(&pd_chan->lock);
 			pd_chan->descs_allocated++;
diff -druNp linux-libre-3.4-gnu1/drivers/dma/pl330.c linux-libre-3.4.53-gnu1/drivers/dma/pl330.c
--- linux-libre-3.4-gnu1/drivers/dma/pl330.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/pl330.c	2013-07-13 14:03:57.000000000 -0400
@@ -1568,17 +1568,19 @@ static int pl330_submit_req(void *ch_id,
 		goto xfer_exit;
 	}
 
-	/* Prefer Secure Channel */
-	if (!_manager_ns(thrd))
-		r->cfg->nonsecure = 0;
-	else
-		r->cfg->nonsecure = 1;
 
 	/* Use last settings, if not provided */
-	if (r->cfg)
+	if (r->cfg) {
+		/* Prefer Secure Channel */
+		if (!_manager_ns(thrd))
+			r->cfg->nonsecure = 0;
+		else
+			r->cfg->nonsecure = 1;
+
 		ccr = _prepare_ccr(r->cfg);
-	else
+	} else {
 		ccr = readl(regs + CC(thrd->id));
+	}
 
 	/* If this req doesn't have valid xfer settings */
 	if (!_is_valid(ccr)) {
@@ -2322,7 +2324,7 @@ static void pl330_tasklet(unsigned long
 	/* Pick up ripe tomatoes */
 	list_for_each_entry_safe(desc, _dt, &pch->work_list, node)
 		if (desc->status == DONE) {
-			if (pch->cyclic)
+			if (!pch->cyclic)
 				dma_cookie_complete(&desc->txd);
 			list_move_tail(&desc->node, &list);
 		}
@@ -2935,6 +2937,11 @@ pl330_probe(struct amba_device *adev, co
 		num_chan = max_t(int, pi->pcfg.num_peri, pi->pcfg.num_chan);
 
 	pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);
+	if (!pdmac->peripherals) {
+		ret = -ENOMEM;
+		dev_err(&adev->dev, "unable to allocate pdmac->peripherals\n");
+		goto probe_err5;
+	}
 
 	for (i = 0; i < num_chan; i++) {
 		pch = &pdmac->peripherals[i];
diff -druNp linux-libre-3.4-gnu1/drivers/dma/sirf-dma.c linux-libre-3.4.53-gnu1/drivers/dma/sirf-dma.c
--- linux-libre-3.4-gnu1/drivers/dma/sirf-dma.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/dma/sirf-dma.c	2013-07-13 14:03:57.000000000 -0400
@@ -109,7 +109,7 @@ static void sirfsoc_dma_execute(struct s
 	sdesc = list_first_entry(&schan->queued, struct sirfsoc_dma_desc,
 		node);
 	/* Move the first queued descriptor to active list */
-	list_move_tail(&schan->queued, &schan->active);
+	list_move_tail(&sdesc->node, &schan->active);
 
 	/* Start the DMA transfer */
 	writel_relaxed(sdesc->width, sdma->base + SIRFSOC_DMA_WIDTH_0 +
@@ -428,7 +428,7 @@ static struct dma_async_tx_descriptor *s
 	unsigned long iflags;
 	int ret;
 
-	if ((xt->dir != DMA_MEM_TO_DEV) || (xt->dir != DMA_DEV_TO_MEM)) {
+	if ((xt->dir != DMA_MEM_TO_DEV) && (xt->dir != DMA_DEV_TO_MEM)) {
 		ret = -EINVAL;
 		goto err_dir;
 	}
diff -druNp linux-libre-3.4-gnu1/drivers/edac/amd64_edac.c linux-libre-3.4.53-gnu1/drivers/edac/amd64_edac.c
--- linux-libre-3.4-gnu1/drivers/edac/amd64_edac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/edac/amd64_edac.c	2013-07-13 14:03:57.000000000 -0400
@@ -170,8 +170,11 @@ static int __amd64_set_scrub_rate(struct
 	 * memory controller and apply to register. Search for the first
 	 * bandwidth entry that is greater or equal than the setting requested
 	 * and program that. If at last entry, turn off DRAM scrubbing.
+	 *
+	 * If no suitable bandwidth is found, turn off DRAM scrubbing entirely
+	 * by falling back to the last element in scrubrates[].
 	 */
-	for (i = 0; i < ARRAY_SIZE(scrubrates); i++) {
+	for (i = 0; i < ARRAY_SIZE(scrubrates) - 1; i++) {
 		/*
 		 * skip scrub rates which aren't recommended
 		 * (see F10 BKDG, F3x58)
@@ -181,12 +184,6 @@ static int __amd64_set_scrub_rate(struct
 
 		if (scrubrates[i].bandwidth <= new_bw)
 			break;
-
-		/*
-		 * if no suitable bandwidth found, turn off DRAM scrubbing
-		 * entirely by falling back to the last element in the
-		 * scrubrates array.
-		 */
 	}
 
 	scrubval = scrubrates[i].scrubval;
diff -druNp linux-libre-3.4-gnu1/drivers/edac/edac_pci_sysfs.c linux-libre-3.4.53-gnu1/drivers/edac/edac_pci_sysfs.c
--- linux-libre-3.4-gnu1/drivers/edac/edac_pci_sysfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/edac/edac_pci_sysfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -257,7 +257,7 @@ static ssize_t edac_pci_dev_store(struct
 	struct edac_pci_dev_attribute *edac_pci_dev;
 	edac_pci_dev = (struct edac_pci_dev_attribute *)attr;
 
-	if (edac_pci_dev->show)
+	if (edac_pci_dev->store)
 		return edac_pci_dev->store(edac_pci_dev->value, buffer, count);
 	return -EIO;
 }
diff -druNp linux-libre-3.4-gnu1/drivers/edac/i7300_edac.c linux-libre-3.4.53-gnu1/drivers/edac/i7300_edac.c
--- linux-libre-3.4-gnu1/drivers/edac/i7300_edac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/edac/i7300_edac.c	2013-07-13 14:03:57.000000000 -0400
@@ -215,8 +215,8 @@ static const char *ferr_fat_fbd_name[] =
 	[0]  = "Memory Write error on non-redundant retry or "
 	       "FBD configuration Write error on retry",
 };
-#define GET_FBD_FAT_IDX(fbderr)	(fbderr & (3 << 28))
-#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3))
+#define GET_FBD_FAT_IDX(fbderr)	(((fbderr) >> 28) & 3)
+#define FERR_FAT_FBD_ERR_MASK ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 22))
 
 #define FERR_NF_FBD	0xa0
 static const char *ferr_nf_fbd_name[] = {
@@ -243,7 +243,7 @@ static const char *ferr_nf_fbd_name[] =
 	[1]  = "Aliased Uncorrectable Non-Mirrored Demand Data ECC",
 	[0]  = "Uncorrectable Data ECC on Replay",
 };
-#define GET_FBD_NF_IDX(fbderr)	(fbderr & (3 << 28))
+#define GET_FBD_NF_IDX(fbderr)	(((fbderr) >> 28) & 3)
 #define FERR_NF_FBD_ERR_MASK ((1 << 24) | (1 << 23) | (1 << 22) | (1 << 21) |\
 			      (1 << 18) | (1 << 17) | (1 << 16) | (1 << 15) |\
 			      (1 << 14) | (1 << 13) | (1 << 11) | (1 << 10) |\
@@ -485,7 +485,7 @@ static void i7300_process_fbd_error(stru
 		errnum = find_first_bit(&errors,
 					ARRAY_SIZE(ferr_nf_fbd_name));
 		specific = GET_ERR_FROM_TABLE(ferr_nf_fbd_name, errnum);
-		branch = (GET_FBD_FAT_IDX(error_reg) == 2) ? 1 : 0;
+		branch = (GET_FBD_NF_IDX(error_reg) == 2) ? 1 : 0;
 
 		pci_read_config_dword(pvt->pci_dev_16_1_fsb_addr_map,
 			REDMEMA, &syndrome);
diff -druNp linux-libre-3.4-gnu1/drivers/edac/i7core_edac.c linux-libre-3.4.53-gnu1/drivers/edac/i7core_edac.c
--- linux-libre-3.4-gnu1/drivers/edac/i7core_edac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/edac/i7core_edac.c	2013-07-13 14:03:57.000000000 -0400
@@ -1932,12 +1932,6 @@ static int i7core_mce_check_error(struct
 	if (mce->bank != 8)
 		return NOTIFY_DONE;
 
-#ifdef CONFIG_SMP
-	/* Only handle if it is the right mc controller */
-	if (mce->socketid != pvt->i7core_dev->socket)
-		return NOTIFY_DONE;
-#endif
-
 	smp_rmb();
 	if ((pvt->mce_out + 1) % MCE_LOG_LEN == pvt->mce_in) {
 		smp_wmb();
@@ -2234,8 +2228,6 @@ static void i7core_unregister_mci(struct
 	if (pvt->enable_scrub)
 		disable_sdram_scrub_setting(mci);
 
-	mce_unregister_decode_chain(&i7_mce_dec);
-
 	/* Disable EDAC polling */
 	i7core_pci_ctl_release(pvt);
 
@@ -2336,8 +2328,6 @@ static int i7core_register_mci(struct i7
 	/* DCLK for scrub rate setting */
 	pvt->dclk_freq = get_dclk_freq();
 
-	mce_register_decode_chain(&i7_mce_dec);
-
 	return 0;
 
 fail0:
@@ -2481,8 +2471,10 @@ static int __init i7core_init(void)
 
 	pci_rc = pci_register_driver(&i7core_driver);
 
-	if (pci_rc >= 0)
+	if (pci_rc >= 0) {
+		mce_register_decode_chain(&i7_mce_dec);
 		return 0;
+	}
 
 	i7core_printk(KERN_ERR, "Failed to register device with error %d.\n",
 		      pci_rc);
@@ -2498,6 +2490,7 @@ static void __exit i7core_exit(void)
 {
 	debugf2("MC: " __FILE__ ": %s()\n", __func__);
 	pci_unregister_driver(&i7core_driver);
+	mce_unregister_decode_chain(&i7_mce_dec);
 }
 
 module_init(i7core_init);
diff -druNp linux-libre-3.4-gnu1/drivers/edac/sb_edac.c linux-libre-3.4.53-gnu1/drivers/edac/sb_edac.c
--- linux-libre-3.4-gnu1/drivers/edac/sb_edac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/edac/sb_edac.c	2013-07-13 14:03:57.000000000 -0400
@@ -599,7 +599,7 @@ static int get_dimm_config(const struct
 		pvt->is_close_pg = false;
 	}
 
-	pci_read_config_dword(pvt->pci_ta, RANK_CFG_A, &reg);
+	pci_read_config_dword(pvt->pci_ddrio, RANK_CFG_A, &reg);
 	if (IS_RDIMM_ENABLED(reg)) {
 		/* FIXME: Can also be LRDIMM */
 		debugf0("Memory is registered\n");
@@ -1669,8 +1669,6 @@ static void sbridge_unregister_mci(struc
 	debugf0("MC: " __FILE__ ": %s(): mci = %p, dev = %p\n",
 		__func__, mci, &sbridge_dev->pdev[0]->dev);
 
-	mce_unregister_decode_chain(&sbridge_mce_dec);
-
 	/* Remove MC sysfs nodes */
 	edac_mc_del_mc(mci->dev);
 
@@ -1738,7 +1736,6 @@ static int sbridge_register_mci(struct s
 		goto fail0;
 	}
 
-	mce_register_decode_chain(&sbridge_mce_dec);
 	return 0;
 
 fail0:
@@ -1867,8 +1864,10 @@ static int __init sbridge_init(void)
 
 	pci_rc = pci_register_driver(&sbridge_driver);
 
-	if (pci_rc >= 0)
+	if (pci_rc >= 0) {
+		mce_register_decode_chain(&sbridge_mce_dec);
 		return 0;
+	}
 
 	sbridge_printk(KERN_ERR, "Failed to register device with error %d.\n",
 		      pci_rc);
@@ -1884,6 +1883,7 @@ static void __exit sbridge_exit(void)
 {
 	debugf2("MC: " __FILE__ ": %s()\n", __func__);
 	pci_unregister_driver(&sbridge_driver);
+	mce_unregister_decode_chain(&sbridge_mce_dec);
 }
 
 module_init(sbridge_init);
diff -druNp linux-libre-3.4-gnu1/drivers/eisa/pci_eisa.c linux-libre-3.4.53-gnu1/drivers/eisa/pci_eisa.c
--- linux-libre-3.4-gnu1/drivers/eisa/pci_eisa.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/eisa/pci_eisa.c	2013-07-13 14:03:57.000000000 -0400
@@ -19,10 +19,10 @@
 /* There is only *one* pci_eisa device per machine, right ? */
 static struct eisa_root_device pci_eisa_root;
 
-static int __init pci_eisa_init(struct pci_dev *pdev,
-				const struct pci_device_id *ent)
+static int __init pci_eisa_init(struct pci_dev *pdev)
 {
-	int rc;
+	int rc, i;
+	struct resource *res, *bus_res = NULL;
 
 	if ((rc = pci_enable_device (pdev))) {
 		printk (KERN_ERR "pci_eisa : Could not enable device %s\n",
@@ -30,9 +30,30 @@ static int __init pci_eisa_init(struct p
 		return rc;
 	}
 
+	/*
+	 * The Intel 82375 PCI-EISA bridge is a subtractive-decode PCI
+	 * device, so the resources available on EISA are the same as those
+	 * available on the 82375 bus.  This works the same as a PCI-PCI
+	 * bridge in subtractive-decode mode (see pci_read_bridge_bases()).
+	 * We assume other PCI-EISA bridges are similar.
+	 *
+	 * eisa_root_register() can only deal with a single io port resource,
+	*  so we use the first valid io port resource.
+	 */
+	pci_bus_for_each_resource(pdev->bus, res, i)
+		if (res && (res->flags & IORESOURCE_IO)) {
+			bus_res = res;
+			break;
+		}
+
+	if (!bus_res) {
+		dev_err(&pdev->dev, "No resources available\n");
+		return -1;
+	}
+
 	pci_eisa_root.dev              = &pdev->dev;
-	pci_eisa_root.res	       = pdev->bus->resource[0];
-	pci_eisa_root.bus_base_addr    = pdev->bus->resource[0]->start;
+	pci_eisa_root.res	       = bus_res;
+	pci_eisa_root.bus_base_addr    = bus_res->start;
 	pci_eisa_root.slots	       = EISA_MAX_SLOTS;
 	pci_eisa_root.dma_mask         = pdev->dma_mask;
 	dev_set_drvdata(pci_eisa_root.dev, &pci_eisa_root);
@@ -45,22 +66,26 @@ static int __init pci_eisa_init(struct p
 	return 0;
 }
 
-static struct pci_device_id pci_eisa_pci_tbl[] = {
-	{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
-	  PCI_CLASS_BRIDGE_EISA << 8, 0xffff00, 0 },
-	{ 0, }
-};
+/*
+ * We have to call pci_eisa_init_early() before pnpacpi_init()/isapnp_init().
+ *   Otherwise pnp resource will get enabled early and could prevent eisa
+ *   to be initialized.
+ * Also need to make sure pci_eisa_init_early() is called after
+ * x86/pci_subsys_init().
+ * So need to use subsys_initcall_sync with it.
+ */
+static int __init pci_eisa_init_early(void)
+{
+	struct pci_dev *dev = NULL;
+	int ret;
 
-static struct pci_driver __refdata pci_eisa_driver = {
-	.name		= "pci_eisa",
-	.id_table	= pci_eisa_pci_tbl,
-	.probe		= pci_eisa_init,
-};
+	for_each_pci_dev(dev)
+		if ((dev->class >> 8) == PCI_CLASS_BRIDGE_EISA) {
+			ret = pci_eisa_init(dev);
+			if (ret)
+				return ret;
+		}
 
-static int __init pci_eisa_init_module (void)
-{
-	return pci_register_driver (&pci_eisa_driver);
+	return 0;
 }
-
-device_initcall(pci_eisa_init_module);
-MODULE_DEVICE_TABLE(pci, pci_eisa_pci_tbl);
+subsys_initcall_sync(pci_eisa_init_early);
diff -druNp linux-libre-3.4-gnu1/drivers/firewire/core-cdev.c linux-libre-3.4.53-gnu1/drivers/firewire/core-cdev.c
--- linux-libre-3.4-gnu1/drivers/firewire/core-cdev.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firewire/core-cdev.c	2013-07-13 14:03:57.000000000 -0400
@@ -471,8 +471,8 @@ static int ioctl_get_info(struct client
 	client->bus_reset_closure = a->bus_reset_closure;
 	if (a->bus_reset != 0) {
 		fill_bus_reset_event(&bus_reset, client);
-		ret = copy_to_user(u64_to_uptr(a->bus_reset),
-				   &bus_reset, sizeof(bus_reset));
+		/* unaligned size of bus_reset is 36 bytes */
+		ret = copy_to_user(u64_to_uptr(a->bus_reset), &bus_reset, 36);
 	}
 	if (ret == 0 && list_empty(&client->link))
 		list_add_tail(&client->link, &client->device->client_list);
diff -druNp linux-libre-3.4-gnu1/drivers/firewire/core-device.c linux-libre-3.4.53-gnu1/drivers/firewire/core-device.c
--- linux-libre-3.4-gnu1/drivers/firewire/core-device.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firewire/core-device.c	2013-07-13 14:03:57.000000000 -0400
@@ -999,6 +999,10 @@ static void fw_device_init(struct work_s
 	ret = idr_pre_get(&fw_device_idr, GFP_KERNEL) ?
 	      idr_get_new(&fw_device_idr, device, &minor) :
 	      -ENOMEM;
+	if (minor >= 1 << MINORBITS) {
+		idr_remove(&fw_device_idr, minor);
+		minor = -ENOSPC;
+	}
 	up_write(&fw_device_rwsem);
 
 	if (ret < 0)
diff -druNp linux-libre-3.4-gnu1/drivers/firewire/net.c linux-libre-3.4.53-gnu1/drivers/firewire/net.c
--- linux-libre-3.4-gnu1/drivers/firewire/net.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firewire/net.c	2013-07-13 14:03:57.000000000 -0400
@@ -861,8 +861,8 @@ static void fwnet_receive_broadcast(stru
 	if (specifier_id == IANA_SPECIFIER_ID && ver == RFC2734_SW_VERSION) {
 		buf_ptr += 2;
 		length -= IEEE1394_GASP_HDR_SIZE;
-		fwnet_incoming_packet(dev, buf_ptr, length,
-				      source_node_id, -1, true);
+		fwnet_incoming_packet(dev, buf_ptr, length, source_node_id,
+				      context->card->generation, true);
 	}
 
 	packet.payload_length = dev->rcv_buffer_size;
@@ -958,7 +958,12 @@ static void fwnet_transmit_packet_done(s
 			break;
 		}
 
-		skb_pull(skb, ptask->max_payload);
+		if (ptask->dest_node == IEEE1394_ALL_NODES) {
+			skb_pull(skb,
+				 ptask->max_payload + IEEE1394_GASP_HDR_SIZE);
+		} else {
+			skb_pull(skb, ptask->max_payload);
+		}
 		if (ptask->outstanding_pkts > 1) {
 			fwnet_make_sf_hdr(&ptask->hdr, RFC2374_HDR_INTFRAG,
 					  dg_size, fg_off, datagram_label);
@@ -1062,7 +1067,7 @@ static int fwnet_send_packet(struct fwne
 		smp_rmb();
 		node_id = dev->card->node_id;
 
-		p = skb_push(ptask->skb, 8);
+		p = skb_push(ptask->skb, IEEE1394_GASP_HDR_SIZE);
 		put_unaligned_be32(node_id << 16 | IANA_SPECIFIER_ID >> 8, p);
 		put_unaligned_be32((IANA_SPECIFIER_ID & 0xff) << 24
 						| RFC2734_SW_VERSION, &p[4]);
diff -druNp linux-libre-3.4-gnu1/drivers/firmware/dmi_scan.c linux-libre-3.4.53-gnu1/drivers/firmware/dmi_scan.c
--- linux-libre-3.4-gnu1/drivers/firmware/dmi_scan.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firmware/dmi_scan.c	2013-07-13 14:03:57.000000000 -0400
@@ -6,6 +6,7 @@
 #include <linux/dmi.h>
 #include <linux/efi.h>
 #include <linux/bootmem.h>
+#include <linux/random.h>
 #include <asm/dmi.h>
 
 /*
@@ -15,6 +16,7 @@
  */
 static char dmi_empty_string[] = "        ";
 
+static u16 __initdata dmi_ver;
 /*
  * Catch too early calls to dmi_check_system():
  */
@@ -111,16 +113,18 @@ static int __init dmi_walk_early(void (*
 
 	dmi_table(buf, dmi_len, dmi_num, decode, NULL);
 
+	add_device_randomness(buf, dmi_len);
+
 	dmi_iounmap(buf, dmi_len);
 	return 0;
 }
 
-static int __init dmi_checksum(const u8 *buf)
+static int __init dmi_checksum(const u8 *buf, u8 len)
 {
 	u8 sum = 0;
 	int a;
 
-	for (a = 0; a < 15; a++)
+	for (a = 0; a < len; a++)
 		sum += buf[a];
 
 	return sum == 0;
@@ -158,8 +162,10 @@ static void __init dmi_save_uuid(const s
 		return;
 
 	for (i = 0; i < 16 && (is_ff || is_00); i++) {
-		if(d[i] != 0x00) is_ff = 0;
-		if(d[i] != 0xFF) is_00 = 0;
+		if (d[i] != 0x00)
+			is_00 = 0;
+		if (d[i] != 0xFF)
+			is_ff = 0;
 	}
 
 	if (is_ff || is_00)
@@ -169,7 +175,15 @@ static void __init dmi_save_uuid(const s
 	if (!s)
 		return;
 
-	sprintf(s, "%pUB", d);
+	/*
+	 * As of version 2.6 of the SMBIOS specification, the first 3 fields of
+	 * the UUID are supposed to be little-endian encoded.  The specification
+	 * says that this is the defacto standard.
+	 */
+	if (dmi_ver >= 0x0206)
+		sprintf(s, "%pUL", d);
+	else
+		sprintf(s, "%pUB", d);
 
         dmi_ident[slot] = s;
 }
@@ -401,26 +415,53 @@ static int __init dmi_present(const char
 	u8 buf[15];
 
 	memcpy_fromio(buf, p, 15);
-	if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
+	if (dmi_checksum(buf, 15)) {
 		dmi_num = (buf[13] << 8) | buf[12];
 		dmi_len = (buf[7] << 8) | buf[6];
 		dmi_base = (buf[11] << 24) | (buf[10] << 16) |
 			(buf[9] << 8) | buf[8];
 
-		/*
-		 * DMI version 0.0 means that the real version is taken from
-		 * the SMBIOS version, which we don't know at this point.
-		 */
-		if (buf[14] != 0)
-			printk(KERN_INFO "DMI %d.%d present.\n",
-			       buf[14] >> 4, buf[14] & 0xF);
-		else
-			printk(KERN_INFO "DMI present.\n");
 		if (dmi_walk_early(dmi_decode) == 0) {
+			if (dmi_ver)
+				pr_info("SMBIOS %d.%d present.\n",
+				       dmi_ver >> 8, dmi_ver & 0xFF);
+			else {
+				dmi_ver = (buf[14] & 0xF0) << 4 |
+					   (buf[14] & 0x0F);
+				pr_info("Legacy DMI %d.%d present.\n",
+				       dmi_ver >> 8, dmi_ver & 0xFF);
+			}
 			dmi_dump_ids();
 			return 0;
 		}
 	}
+	dmi_ver = 0;
+	return 1;
+}
+
+static int __init smbios_present(const char __iomem *p)
+{
+	u8 buf[32];
+
+	memcpy_fromio(buf, p, 32);
+	if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
+		dmi_ver = (buf[6] << 8) + buf[7];
+
+		/* Some BIOS report weird SMBIOS version, fix that up */
+		switch (dmi_ver) {
+		case 0x021F:
+		case 0x0221:
+			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
+			       dmi_ver & 0xFF, 3);
+			dmi_ver = 0x0203;
+			break;
+		case 0x0233:
+			pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
+			dmi_ver = 0x0206;
+			break;
+		}
+		return memcmp(p + 16, "_DMI_", 5) || dmi_present(p + 16);
+	}
 	return 1;
 }
 
@@ -429,7 +470,7 @@ void __init dmi_scan_machine(void)
 	char __iomem *p, *q;
 	int rc;
 
-	if (efi_enabled) {
+	if (efi_enabled(EFI_CONFIG_TABLES)) {
 		if (efi.smbios == EFI_INVALID_TABLE_ADDR)
 			goto error;
 
@@ -441,7 +482,7 @@ void __init dmi_scan_machine(void)
 		if (p == NULL)
 			goto error;
 
-		rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
+		rc = smbios_present(p);
 		dmi_iounmap(p, 32);
 		if (!rc) {
 			dmi_available = 1;
@@ -459,7 +500,12 @@ void __init dmi_scan_machine(void)
 			goto error;
 
 		for (q = p; q < p + 0x10000; q += 16) {
-			rc = dmi_present(q);
+			if (memcmp(q, "_SM_", 4) == 0 && q - p <= 0xFFE0)
+				rc = smbios_present(q);
+			else if (memcmp(q, "_DMI_", 5) == 0)
+				rc = dmi_present(q);
+			else
+				continue;
 			if (!rc) {
 				dmi_available = 1;
 				dmi_iounmap(p, 0x10000);
diff -druNp linux-libre-3.4-gnu1/drivers/firmware/efivars.c linux-libre-3.4.53-gnu1/drivers/firmware/efivars.c
--- linux-libre-3.4-gnu1/drivers/firmware/efivars.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firmware/efivars.c	2013-07-13 14:03:57.000000000 -0400
@@ -122,6 +122,9 @@ struct efivar_attribute {
 	ssize_t (*store)(struct efivar_entry *entry, const char *buf, size_t count);
 };
 
+static struct efivars __efivars;
+static struct efivar_operations ops;
+
 #define PSTORE_EFI_ATTRIBUTES \
 	(EFI_VARIABLE_NON_VOLATILE | \
 	 EFI_VARIABLE_BOOTSERVICE_ACCESS | \
@@ -435,12 +438,23 @@ efivar_attr_read(struct efivar_entry *en
 	if (status != EFI_SUCCESS)
 		return -EIO;
 
-	if (var->Attributes & 0x1)
+	if (var->Attributes & EFI_VARIABLE_NON_VOLATILE)
 		str += sprintf(str, "EFI_VARIABLE_NON_VOLATILE\n");
-	if (var->Attributes & 0x2)
+	if (var->Attributes & EFI_VARIABLE_BOOTSERVICE_ACCESS)
 		str += sprintf(str, "EFI_VARIABLE_BOOTSERVICE_ACCESS\n");
-	if (var->Attributes & 0x4)
+	if (var->Attributes & EFI_VARIABLE_RUNTIME_ACCESS)
 		str += sprintf(str, "EFI_VARIABLE_RUNTIME_ACCESS\n");
+	if (var->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD)
+		str += sprintf(str, "EFI_VARIABLE_HARDWARE_ERROR_RECORD\n");
+	if (var->Attributes & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS)
+		str += sprintf(str,
+			"EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS\n");
+	if (var->Attributes &
+			EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)
+		str += sprintf(str,
+			"EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS\n");
+	if (var->Attributes & EFI_VARIABLE_APPEND_WRITE)
+		str += sprintf(str, "EFI_VARIABLE_APPEND_WRITE\n");
 	return str - buf;
 }
 
@@ -931,6 +945,53 @@ static ssize_t efivar_delete(struct file
 	return count;
 }
 
+static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor)
+{
+	struct efivar_entry *entry, *n;
+	struct efivars *efivars = &__efivars;
+	unsigned long strsize1, strsize2;
+	bool found = false;
+
+	strsize1 = utf16_strsize(variable_name, 1024);
+	list_for_each_entry_safe(entry, n, &efivars->list, list) {
+		strsize2 = utf16_strsize(entry->var.VariableName, 1024);
+		if (strsize1 == strsize2 &&
+			!memcmp(variable_name, &(entry->var.VariableName),
+				strsize2) &&
+			!efi_guidcmp(entry->var.VendorGuid,
+				*vendor)) {
+			found = true;
+			break;
+		}
+	}
+	return found;
+}
+
+/*
+ * Returns the size of variable_name, in bytes, including the
+ * terminating NULL character, or variable_name_size if no NULL
+ * character is found among the first variable_name_size bytes.
+ */
+static unsigned long var_name_strnsize(efi_char16_t *variable_name,
+				       unsigned long variable_name_size)
+{
+	unsigned long len;
+	efi_char16_t c;
+
+	/*
+	 * The variable name is, by definition, a NULL-terminated
+	 * string, so make absolutely sure that variable_name_size is
+	 * the value we expect it to be. If not, return the real size.
+	 */
+	for (len = 2; len <= variable_name_size; len += sizeof(c)) {
+		c = variable_name[(len / sizeof(c)) - 1];
+		if (!c)
+			break;
+	}
+
+	return min(len, variable_name_size);
+}
+
 /*
  * Let's not leave out systab information that snuck into
  * the efivars driver
@@ -1118,6 +1179,28 @@ void unregister_efivars(struct efivars *
 }
 EXPORT_SYMBOL_GPL(unregister_efivars);
 
+/*
+ * Print a warning when duplicate EFI variables are encountered and
+ * disable the sysfs workqueue since the firmware is buggy.
+ */
+static void dup_variable_bug(efi_char16_t *s16, efi_guid_t *vendor_guid,
+			     unsigned long len16)
+{
+	size_t i, len8 = len16 / sizeof(efi_char16_t);
+	char *s8;
+
+	s8 = kzalloc(len8, GFP_KERNEL);
+	if (!s8)
+		return;
+
+	for (i = 0; i < len8; i++)
+		s8[i] = s16[i];
+
+	printk(KERN_WARNING "efivars: duplicate variable: %s-%pUl\n",
+	       s8, vendor_guid);
+	kfree(s8);
+}
+
 int register_efivars(struct efivars *efivars,
 		     const struct efivar_operations *ops,
 		     struct kobject *parent_kobj)
@@ -1158,6 +1241,24 @@ int register_efivars(struct efivars *efi
 						&vendor_guid);
 		switch (status) {
 		case EFI_SUCCESS:
+			variable_name_size = var_name_strnsize(variable_name,
+							       variable_name_size);
+
+			/*
+			 * Some firmware implementations return the
+			 * same variable name on multiple calls to
+			 * get_next_variable(). Terminate the loop
+			 * immediately as there is no guarantee that
+			 * we'll ever see a different variable name,
+			 * and may end up looping here forever.
+			 */
+			if (variable_is_present(variable_name, &vendor_guid)) {
+				dup_variable_bug(variable_name, &vendor_guid,
+						 variable_name_size);
+				status = EFI_NOT_FOUND;
+				break;
+			}
+
 			efivar_create_sysfs_entry(efivars,
 						  variable_name_size,
 						  variable_name,
@@ -1194,9 +1295,6 @@ out:
 }
 EXPORT_SYMBOL_GPL(register_efivars);
 
-static struct efivars __efivars;
-static struct efivar_operations ops;
-
 /*
  * For now we register the efi subsystem with the firmware subsystem
  * and the vars subsystem with the efi subsystem.  In the future, it
@@ -1213,7 +1311,7 @@ efivars_init(void)
 	printk(KERN_INFO "EFI Variables Facility v%s %s\n", EFIVARS_VERSION,
 	       EFIVARS_DATE);
 
-	if (!efi_enabled)
+	if (!efi_enabled(EFI_RUNTIME_SERVICES))
 		return 0;
 
 	/* For now we'll register the efi directory at /sys/firmware/efi */
@@ -1251,7 +1349,7 @@ err_put:
 static void __exit
 efivars_exit(void)
 {
-	if (efi_enabled) {
+	if (efi_enabled(EFI_RUNTIME_SERVICES)) {
 		unregister_efivars(&__efivars);
 		kobject_put(efi_kobj);
 	}
diff -druNp linux-libre-3.4-gnu1/drivers/firmware/iscsi_ibft_find.c linux-libre-3.4.53-gnu1/drivers/firmware/iscsi_ibft_find.c
--- linux-libre-3.4-gnu1/drivers/firmware/iscsi_ibft_find.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firmware/iscsi_ibft_find.c	2013-07-13 14:03:57.000000000 -0400
@@ -99,7 +99,7 @@ unsigned long __init find_ibft_region(un
 	/* iBFT 1.03 section 1.4.3.1 mandates that UEFI machines will
 	 * only use ACPI for this */
 
-	if (!efi_enabled)
+	if (!efi_enabled(EFI_BOOT))
 		find_ibft_in_mem();
 
 	if (ibft_addr) {
diff -druNp linux-libre-3.4-gnu1/drivers/firmware/pcdp.c linux-libre-3.4.53-gnu1/drivers/firmware/pcdp.c
--- linux-libre-3.4-gnu1/drivers/firmware/pcdp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/firmware/pcdp.c	2013-07-13 14:03:57.000000000 -0400
@@ -95,7 +95,7 @@ efi_setup_pcdp_console(char *cmdline)
 	if (efi.hcdp == EFI_INVALID_TABLE_ADDR)
 		return -ENODEV;
 
-	pcdp = ioremap(efi.hcdp, 4096);
+	pcdp = early_ioremap(efi.hcdp, 4096);
 	printk(KERN_INFO "PCDP: v%d at 0x%lx\n", pcdp->rev, efi.hcdp);
 
 	if (strstr(cmdline, "console=hcdp")) {
@@ -131,6 +131,6 @@ efi_setup_pcdp_console(char *cmdline)
 	}
 
 out:
-	iounmap(pcdp);
+	early_iounmap(pcdp, 4096);
 	return rc;
 }
diff -druNp linux-libre-3.4-gnu1/drivers/gpio/gpiolib.c linux-libre-3.4.53-gnu1/drivers/gpio/gpiolib.c
--- linux-libre-3.4-gnu1/drivers/gpio/gpiolib.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpio/gpiolib.c	2013-07-13 14:03:57.000000000 -0400
@@ -623,9 +623,11 @@ static ssize_t export_store(struct class
 	 */
 
 	status = gpio_request(gpio, "sysfs");
-	if (status < 0)
+	if (status < 0) {
+		if (status == -EPROBE_DEFER)
+			status = -ENODEV;
 		goto done;
-
+	}
 	status = gpio_export(gpio, true);
 	if (status < 0)
 		gpio_free(gpio);
@@ -1191,8 +1193,10 @@ int gpio_request(unsigned gpio, const ch
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
-	if (!gpio_is_valid(gpio))
+	if (!gpio_is_valid(gpio)) {
+		status = -EINVAL;
 		goto done;
+	}
 	desc = &gpio_desc[gpio];
 	chip = desc->chip;
 	if (chip == NULL)
diff -druNp linux-libre-3.4-gnu1/drivers/gpio/gpio-lpc32xx.c linux-libre-3.4.53-gnu1/drivers/gpio/gpio-lpc32xx.c
--- linux-libre-3.4-gnu1/drivers/gpio/gpio-lpc32xx.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpio/gpio-lpc32xx.c	2013-07-13 14:03:57.000000000 -0400
@@ -304,6 +304,7 @@ static int lpc32xx_gpio_dir_output_p012(
 {
 	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
 
+	__set_gpio_level_p012(group, pin, value);
 	__set_gpio_dir_p012(group, pin, 0);
 
 	return 0;
@@ -314,6 +315,7 @@ static int lpc32xx_gpio_dir_output_p3(st
 {
 	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
 
+	__set_gpio_level_p3(group, pin, value);
 	__set_gpio_dir_p3(group, pin, 0);
 
 	return 0;
@@ -322,6 +324,9 @@ static int lpc32xx_gpio_dir_output_p3(st
 static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
 	int value)
 {
+	struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
+
+	__set_gpo_level_p3(group, pin, value);
 	return 0;
 }
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpio/gpio-mpc8xxx.c linux-libre-3.4.53-gnu1/drivers/gpio/gpio-mpc8xxx.c
--- linux-libre-3.4-gnu1/drivers/gpio/gpio-mpc8xxx.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpio/gpio-mpc8xxx.c	2013-07-13 14:03:57.000000000 -0400
@@ -163,7 +163,8 @@ static void mpc8xxx_gpio_irq_cascade(uns
 	if (mask)
 		generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq,
 						     32 - ffs(mask)));
-	chip->irq_eoi(&desc->irq_data);
+	if (chip->irq_eoi)
+		chip->irq_eoi(&desc->irq_data);
 }
 
 static void mpc8xxx_irq_unmask(struct irq_data *d)
diff -druNp linux-libre-3.4-gnu1/drivers/gpio/gpio-timberdale.c linux-libre-3.4.53-gnu1/drivers/gpio/gpio-timberdale.c
--- linux-libre-3.4-gnu1/drivers/gpio/gpio-timberdale.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpio/gpio-timberdale.c	2013-07-13 14:03:57.000000000 -0400
@@ -116,7 +116,7 @@ static void timbgpio_irq_disable(struct
 	unsigned long flags;
 
 	spin_lock_irqsave(&tgpio->lock, flags);
-	tgpio->last_ier &= ~(1 << offset);
+	tgpio->last_ier &= ~(1UL << offset);
 	iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER);
 	spin_unlock_irqrestore(&tgpio->lock, flags);
 }
@@ -128,7 +128,7 @@ static void timbgpio_irq_enable(struct i
 	unsigned long flags;
 
 	spin_lock_irqsave(&tgpio->lock, flags);
-	tgpio->last_ier |= 1 << offset;
+	tgpio->last_ier |= 1UL << offset;
 	iowrite32(tgpio->last_ier, tgpio->membase + TGPIO_IER);
 	spin_unlock_irqrestore(&tgpio->lock, flags);
 }
diff -druNp linux-libre-3.4-gnu1/drivers/gpio/gpio-wm8994.c linux-libre-3.4.53-gnu1/drivers/gpio/gpio-wm8994.c
--- linux-libre-3.4-gnu1/drivers/gpio/gpio-wm8994.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpio/gpio-wm8994.c	2013-07-13 14:03:57.000000000 -0400
@@ -89,8 +89,11 @@ static int wm8994_gpio_direction_out(str
 	struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip);
 	struct wm8994 *wm8994 = wm8994_gpio->wm8994;
 
+	if (value)
+		value = WM8994_GPN_LVL;
+
 	return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
-			       WM8994_GPN_DIR, 0);
+			       WM8994_GPN_DIR | WM8994_GPN_LVL, value);
 }
 
 static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_crtc.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_crtc.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_crtc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_crtc.c	2013-07-13 14:03:57.000000000 -0400
@@ -1028,15 +1028,15 @@ void drm_mode_config_cleanup(struct drm_
 		fb->funcs->destroy(fb);
 	}
 
-	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
-		crtc->funcs->destroy(crtc);
-	}
-
 	list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
 				 head) {
 		plane->funcs->destroy(plane);
 	}
 
+	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+		crtc->funcs->destroy(crtc);
+	}
+
 	idr_remove_all(&dev->mode_config.crtc_idr);
 	idr_destroy(&dev->mode_config.crtc_idr);
 }
@@ -1981,7 +1981,7 @@ int drm_mode_cursor_ioctl(struct drm_dev
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
 
-	if (!req->flags)
+	if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
 		return -EINVAL;
 
 	mutex_lock(&dev->mode_config.mutex);
@@ -2023,7 +2023,7 @@ uint32_t drm_mode_legacy_fb_format(uint3
 
 	switch (bpp) {
 	case 8:
-		fmt = DRM_FORMAT_RGB332;
+		fmt = DRM_FORMAT_C8;
 		break;
 	case 16:
 		if (depth == 15)
@@ -3409,6 +3409,7 @@ void drm_fb_get_bpp_depth(uint32_t forma
 			  int *bpp)
 {
 	switch (format) {
+	case DRM_FORMAT_C8:
 	case DRM_FORMAT_RGB332:
 	case DRM_FORMAT_BGR233:
 		*depth = 8;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_edid.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_edid.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_edid.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_edid.c	2013-07-13 14:03:57.000000000 -0400
@@ -66,6 +66,8 @@
 #define EDID_QUIRK_FIRST_DETAILED_PREFERRED	(1 << 5)
 /* use +hsync +vsync for detailed mode */
 #define EDID_QUIRK_DETAILED_SYNC_PP		(1 << 6)
+/* Force reduced-blanking timings for detailed modes */
+#define EDID_QUIRK_FORCE_REDUCED_BLANKING	(1 << 7)
 
 struct detailed_mode_closure {
 	struct drm_connector *connector;
@@ -120,6 +122,9 @@ static struct edid_quirk {
 	/* Samsung SyncMaster 22[5-6]BW */
 	{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
 	{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+
+	/* ViewSonic VA2026w */
+	{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
 };
 
 /*** DDC fetch and block validation ***/
@@ -574,7 +579,7 @@ static bool
 drm_monitor_supports_rb(struct edid *edid)
 {
 	if (edid->revision >= 4) {
-		bool ret;
+		bool ret = false;
 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
 		return ret;
 	}
@@ -831,7 +836,7 @@ static struct drm_display_mode *drm_mode
 	unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
 	unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
 	unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
-	unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) >> 2 | pt->vsync_offset_pulse_width_lo >> 4;
+	unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
 	unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
 
 	/* ignore tiny modes */
@@ -852,12 +857,19 @@ static struct drm_display_mode *drm_mode
 				"Wrong Hsync/Vsync pulse width\n");
 		return NULL;
 	}
+
+	if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
+		mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
+		if (!mode)
+			return NULL;
+
+		goto set_size;
+	}
+
 	mode = drm_mode_create(dev);
 	if (!mode)
 		return NULL;
 
-	mode->type = DRM_MODE_TYPE_DRIVER;
-
 	if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
 		timing->pixel_clock = cpu_to_le16(1088);
 
@@ -881,8 +893,6 @@ static struct drm_display_mode *drm_mode
 
 	drm_mode_do_interlace_quirk(mode, pt);
 
-	drm_mode_set_name(mode);
-
 	if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
 		pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
 	}
@@ -892,6 +902,7 @@ static struct drm_display_mode *drm_mode
 	mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
 		DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
 
+set_size:
 	mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
 	mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
 
@@ -905,6 +916,10 @@ static struct drm_display_mode *drm_mode
 		mode->height_mm = edid->height_cm * 10;
 	}
 
+	mode->type = DRM_MODE_TYPE_DRIVER;
+	mode->vrefresh = drm_mode_vrefresh(mode);
+	drm_mode_set_name(mode);
+
 	return mode;
 }
 
@@ -1755,7 +1770,8 @@ int drm_add_edid_modes(struct drm_connec
 	num_modes += add_cvt_modes(connector, edid);
 	num_modes += add_standard_modes(connector, edid);
 	num_modes += add_established_modes(connector, edid);
-	num_modes += add_inferred_modes(connector, edid);
+	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
+		num_modes += add_inferred_modes(connector, edid);
 	num_modes += add_cea_modes(connector, edid);
 
 	if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_fops.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_fops.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_fops.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_fops.c	2013-07-13 14:03:57.000000000 -0400
@@ -139,8 +139,11 @@ int drm_open(struct inode *inode, struct
 	retcode = drm_open_helper(inode, filp, dev);
 	if (!retcode) {
 		atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
-		if (!dev->open_count++)
+		if (!dev->open_count++) {
 			retcode = drm_setup(dev);
+			if (retcode)
+				dev->open_count--;
+		}
 	}
 	if (!retcode) {
 		mutex_lock(&dev->struct_mutex);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_irq.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_irq.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -981,7 +981,7 @@ EXPORT_SYMBOL(drm_vblank_off);
  */
 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
 {
-	/* vblank is not initialized (IRQ not installed ?) */
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
 	if (!dev->num_crtcs)
 		return;
 	/*
@@ -1003,6 +1003,10 @@ void drm_vblank_post_modeset(struct drm_
 {
 	unsigned long irqflags;
 
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
+	if (!dev->num_crtcs)
+		return;
+
 	if (dev->vblank_inmodeset[crtc]) {
 		spin_lock_irqsave(&dev->vbl_lock, irqflags);
 		dev->vblank_disable_allowed = 1;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_mm.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_mm.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_mm.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_mm.c	2013-07-13 14:03:57.000000000 -0400
@@ -680,33 +680,35 @@ void drm_mm_debug_table(struct drm_mm *m
 EXPORT_SYMBOL(drm_mm_debug_table);
 
 #if defined(CONFIG_DEBUG_FS)
-int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+static unsigned long drm_mm_dump_hole(struct seq_file *m, struct drm_mm_node *entry)
 {
-	struct drm_mm_node *entry;
-	unsigned long total_used = 0, total_free = 0, total = 0;
 	unsigned long hole_start, hole_end, hole_size;
 
-	hole_start = drm_mm_hole_node_start(&mm->head_node);
-	hole_end = drm_mm_hole_node_end(&mm->head_node);
-	hole_size = hole_end - hole_start;
-	if (hole_size)
+	if (entry->hole_follows) {
+		hole_start = drm_mm_hole_node_start(entry);
+		hole_end = drm_mm_hole_node_end(entry);
+		hole_size = hole_end - hole_start;
 		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
 				hole_start, hole_end, hole_size);
-	total_free += hole_size;
+		return hole_size;
+	}
+
+	return 0;
+}
+
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm)
+{
+	struct drm_mm_node *entry;
+	unsigned long total_used = 0, total_free = 0, total = 0;
+
+	total_free += drm_mm_dump_hole(m, &mm->head_node);
 
 	drm_mm_for_each_node(entry, mm) {
 		seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: used\n",
 				entry->start, entry->start + entry->size,
 				entry->size);
 		total_used += entry->size;
-		if (entry->hole_follows) {
-			hole_start = drm_mm_hole_node_start(entry);
-			hole_end = drm_mm_hole_node_end(entry);
-			hole_size = hole_end - hole_start;
-			seq_printf(m, "0x%08lx-0x%08lx: 0x%08lx: free\n",
-					hole_start, hole_end, hole_size);
-			total_free += hole_size;
-		}
+		total_free += drm_mm_dump_hole(m, entry);
 	}
 	total = total_free + total_used;
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/drm_usb.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_usb.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/drm_usb.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/drm_usb.c	2013-07-13 14:03:57.000000000 -0400
@@ -18,7 +18,7 @@ int drm_get_usb_dev(struct usb_interface
 
 	usbdev = interface_to_usbdev(interface);
 	dev->usbdev = usbdev;
-	dev->dev = &usbdev->dev;
+	dev->dev = &interface->dev;
 
 	mutex_lock(&drm_global_mutex);
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/cdv_intel_display.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/cdv_intel_display.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/cdv_intel_display.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/cdv_intel_display.c	2013-07-13 14:03:57.000000000 -0400
@@ -1439,6 +1439,19 @@ static void cdv_intel_crtc_destroy(struc
 	kfree(psb_intel_crtc);
 }
 
+static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.dpms = cdv_intel_crtc_dpms,
 	.mode_fixup = cdv_intel_crtc_mode_fixup,
@@ -1446,6 +1459,7 @@ const struct drm_crtc_helper_funcs cdv_i
 	.mode_set_base = cdv_intel_pipe_set_base,
 	.prepare = cdv_intel_crtc_prepare,
 	.commit = cdv_intel_crtc_commit,
+	.disable = cdv_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/framebuffer.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/framebuffer.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/framebuffer.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/framebuffer.c	2013-07-13 14:03:57.000000000 -0400
@@ -782,8 +782,8 @@ void psb_modeset_init(struct drm_device
 	for (i = 0; i < dev_priv->num_pipe; i++)
 		psb_intel_crtc_init(dev, i, mode_dev);
 
-	dev->mode_config.max_width = 2048;
-	dev->mode_config.max_height = 2048;
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
 
 	psb_setup_outputs(dev);
 }
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_device.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_device.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_device.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_device.c	2013-07-13 14:03:57.000000000 -0400
@@ -197,7 +197,8 @@ static int psb_save_display_registers(st
 	}
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
-		connector->funcs->save(connector);
+		if (connector->funcs->save)
+			connector->funcs->save(connector);
 
 	mutex_unlock(&dev->mode_config.mutex);
 	return 0;
@@ -235,7 +236,8 @@ static int psb_restore_display_registers
 			crtc->funcs->restore(crtc);
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
-		connector->funcs->restore(connector);
+		if (connector->funcs->restore)
+			connector->funcs->restore(connector);
 
 	mutex_unlock(&dev->mode_config.mutex);
 	return 0;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_drv.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_drv.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_drv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_drv.c	2013-07-13 14:03:57.000000000 -0400
@@ -349,7 +349,7 @@ static int psb_driver_load(struct drm_de
 	PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
 
 /*	igd_opregion_init(&dev_priv->opregion_dev); */
-	acpi_video_register();
+/*	acpi_video_register(); */
 	if (dev_priv->lid_state)
 		psb_lid_timer_init(dev_priv);
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_intel_display.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_intel_display.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/gma500/psb_intel_display.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/gma500/psb_intel_display.c	2013-07-13 14:03:57.000000000 -0400
@@ -1262,6 +1262,19 @@ void psb_intel_crtc_destroy(struct drm_c
 	kfree(psb_intel_crtc);
 }
 
+static void psb_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.dpms = psb_intel_crtc_dpms,
 	.mode_fixup = psb_intel_crtc_mode_fixup,
@@ -1269,6 +1282,7 @@ const struct drm_crtc_helper_funcs psb_i
 	.mode_set_base = psb_intel_pipe_set_base,
 	.prepare = psb_intel_crtc_prepare,
 	.commit = psb_intel_crtc_commit,
+	.disable = psb_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs psb_intel_crtc_funcs = {
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_debugfs.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_debugfs.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_debugfs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_debugfs.c	2013-07-13 14:03:57.000000000 -0400
@@ -122,7 +122,7 @@ static const char *cache_level_str(int t
 static void
 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 {
-	seq_printf(m, "%p: %s%s %8zdKiB %04x %04x %d %d%s%s%s",
+	seq_printf(m, "%pK: %s%s %8zdKiB %04x %04x %d %d%s%s%s",
 		   &obj->base,
 		   get_pin_flag(obj),
 		   get_tiling_flag(obj),
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_drv.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_drv.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_drv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_drv.c	2013-07-13 14:03:57.000000000 -0400
@@ -224,6 +224,7 @@ static const struct intel_device_info in
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_sandybridge_m_info = {
@@ -233,6 +234,7 @@ static const struct intel_device_info in
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_ivybridge_d_info = {
@@ -241,6 +243,7 @@ static const struct intel_device_info in
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct intel_device_info intel_ivybridge_m_info = {
@@ -250,6 +253,7 @@ static const struct intel_device_info in
 	.has_bsd_ring = 1,
 	.has_blt_ring = 1,
 	.has_llc = 1,
+	.has_force_wake = 1,
 };
 
 static const struct pci_device_id pciidlist[] = {		/* aka */
@@ -993,6 +997,12 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
 
+/* We give fast paths for the really cool registers */
+#define NEEDS_FORCE_WAKE(dev_priv, reg) \
+	((HAS_FORCE_WAKE((dev_priv)->dev)) && \
+        ((reg) < 0x40000) &&            \
+        ((reg) != FORCEWAKE))
+
 #define __i915_read(x, y) \
 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
 	u##x val = 0; \
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_drv.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_drv.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_drv.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_drv.h	2013-07-13 14:03:57.000000000 -0400
@@ -255,6 +255,7 @@ struct intel_device_info {
 	u8 is_broadwater:1;
 	u8 is_crestline:1;
 	u8 is_ivybridge:1;
+	u8 has_force_wake:1;
 	u8 has_fbc:1;
 	u8 has_pipe_cxsr:1;
 	u8 has_hotplug:1;
@@ -405,6 +406,8 @@ typedef struct drm_i915_private {
 	unsigned int lvds_use_ssc:1;
 	unsigned int display_clock_mode:1;
 	int lvds_ssc_freq;
+	unsigned int bios_lvds_val; /* initial [PCH_]LVDS reg val in VBIOS */
+	unsigned int lvds_val; /* used for checking LVDS channel mode */
 	struct {
 		int rate;
 		int lanes;
@@ -1051,6 +1054,8 @@ struct drm_i915_file_private {
 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT)
 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX)
 
+#define HAS_FORCE_WAKE(dev) (INTEL_INFO(dev)->has_force_wake)
+
 #include "i915_trace.h"
 
 /**
@@ -1450,12 +1455,6 @@ void gen6_gt_force_wake_get(struct drm_i
 void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv);
 int __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
 
-/* We give fast paths for the really cool registers */
-#define NEEDS_FORCE_WAKE(dev_priv, reg) \
-	(((dev_priv)->info->gen >= 6) && \
-	 ((reg) < 0x40000) &&		 \
-	 ((reg) != FORCEWAKE))
-
 #define __i915_read(x, y) \
 	u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem.c	2013-07-13 14:03:57.000000000 -0400
@@ -928,6 +928,7 @@ i915_gem_pwrite_ioctl(struct drm_device
 	}
 
 	if (obj->gtt_space &&
+	    obj->tiling_mode == I915_TILING_NONE &&
 	    obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
 		ret = i915_gem_object_pin(obj, 0, true);
 		if (ret)
@@ -1185,6 +1186,11 @@ out:
 	case 0:
 	case -ERESTARTSYS:
 	case -EINTR:
+	case -EBUSY:
+		/*
+		 * EBUSY is ok: this just means that another thread
+		 * already did the job.
+		 */
 		return VM_FAULT_NOPAGE;
 	case -ENOMEM:
 		return VM_FAULT_OOM;
@@ -3317,7 +3323,8 @@ i915_gem_object_pin(struct drm_i915_gem_
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
 
-	BUG_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT);
+	if (WARN_ON(obj->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT))
+		return -EBUSY;
 	WARN_ON(i915_verify_lists(dev));
 
 	if (obj->gtt_space != NULL) {
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem_execbuffer.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem_execbuffer.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem_execbuffer.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem_execbuffer.c	2013-07-13 14:03:57.000000000 -0400
@@ -707,6 +707,8 @@ i915_gem_execbuffer_relocate_slow(struct
 	total = 0;
 	for (i = 0; i < count; i++) {
 		struct drm_i915_gem_relocation_entry __user *user_relocs;
+		u64 invalid_offset = (u64)-1;
+		int j;
 
 		user_relocs = (void __user *)(uintptr_t)exec[i].relocs_ptr;
 
@@ -717,6 +719,25 @@ i915_gem_execbuffer_relocate_slow(struct
 			goto err;
 		}
 
+		/* As we do not update the known relocation offsets after
+		 * relocating (due to the complexities in lock handling),
+		 * we need to mark them as invalid now so that we force the
+		 * relocation processing next time. Just in case the target
+		 * object is evicted and then rebound into its old
+		 * presumed_offset before the next execbuffer - if that
+		 * happened we would make the mistake of assuming that the
+		 * relocations were valid.
+		 */
+		for (j = 0; j < exec[i].relocation_count; j++) {
+			if (copy_to_user(&user_relocs[j].presumed_offset,
+					 &invalid_offset,
+					 sizeof(invalid_offset))) {
+				ret = -EFAULT;
+				mutex_lock(&dev->struct_mutex);
+				goto err;
+			}
+		}
+
 		reloc_offset[i] = total;
 		total += exec[i].relocation_count;
 	}
@@ -936,15 +957,20 @@ validate_exec_list(struct drm_i915_gem_e
 		   int count)
 {
 	int i;
+	int relocs_total = 0;
+	int relocs_max = INT_MAX / sizeof(struct drm_i915_gem_relocation_entry);
 
 	for (i = 0; i < count; i++) {
 		char __user *ptr = (char __user *)(uintptr_t)exec[i].relocs_ptr;
 		int length; /* limited by fault_in_pages_readable() */
 
-		/* First check for malicious input causing overflow */
-		if (exec[i].relocation_count >
-		    INT_MAX / sizeof(struct drm_i915_gem_relocation_entry))
+		/* First check for malicious input causing overflow in
+		 * the worst case where we need to allocate the entire
+		 * relocation tree as a single array.
+		 */
+		if (exec[i].relocation_count > relocs_max - relocs_total)
 			return -EINVAL;
+		relocs_total += exec[i].relocation_count;
 
 		length = exec[i].relocation_count *
 			sizeof(struct drm_i915_gem_relocation_entry);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem_gtt.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem_gtt.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_gem_gtt.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_gem_gtt.c	2013-07-13 14:03:57.000000000 -0400
@@ -72,7 +72,7 @@ int i915_gem_init_aliasing_ppgtt(struct
 	/* ppgtt PDEs reside in the global gtt pagetable, which has 512*1024
 	 * entries. For aliasing ppgtt support we just steal them at the end for
 	 * now. */
-	first_pd_entry_in_global_pt = 512*1024 - I915_PPGTT_PD_ENTRIES;
+	first_pd_entry_in_global_pt = dev_priv->mm.gtt->gtt_total_entries - I915_PPGTT_PD_ENTRIES;
 
 	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
 	if (!ppgtt)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_irq.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_irq.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_irq.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_irq.c	2013-07-13 14:03:57.000000000 -0400
@@ -424,14 +424,35 @@ static void gen6_pm_rps_work(struct work
 	mutex_unlock(&dev_priv->dev->struct_mutex);
 }
 
-static void pch_irq_handler(struct drm_device *dev)
+static void gen6_queue_rps_work(struct drm_i915_private *dev_priv,
+				u32 pm_iir)
+{
+	unsigned long flags;
+
+	/*
+	 * IIR bits should never already be set because IMR should
+	 * prevent an interrupt from being shown in IIR. The warning
+	 * displays a case where we've unsafely cleared
+	 * dev_priv->pm_iir. Although missing an interrupt of the same
+	 * type is not a problem, it displays a problem in the logic.
+	 *
+	 * The mask bit in IMR is cleared by rps_work.
+	 */
+
+	spin_lock_irqsave(&dev_priv->rps_lock, flags);
+	dev_priv->pm_iir |= pm_iir;
+	I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir);
+	POSTING_READ(GEN6_PMIMR);
+	spin_unlock_irqrestore(&dev_priv->rps_lock, flags);
+
+	queue_work(dev_priv->wq, &dev_priv->rps_work);
+}
+
+static void pch_irq_handler(struct drm_device *dev, u32 pch_iir)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-	u32 pch_iir;
 	int pipe;
 
-	pch_iir = I915_READ(SDEIIR);
-
 	if (pch_iir & SDE_AUDIO_POWER_MASK)
 		DRM_DEBUG_DRIVER("PCH audio power change on port %d\n",
 				 (pch_iir & SDE_AUDIO_POWER_MASK) >>
@@ -509,6 +530,12 @@ static irqreturn_t ivybridge_irq_handler
 	if (de_iir & DE_GSE_IVB)
 		intel_opregion_gse_intr(dev);
 
+	if (de_iir & DE_PIPEA_VBLANK_IVB)
+		drm_handle_vblank(dev, 0);
+
+	if (de_iir & DE_PIPEB_VBLANK_IVB)
+		drm_handle_vblank(dev, 1);
+
 	if (de_iir & DE_PLANEA_FLIP_DONE_IVB) {
 		intel_prepare_page_flip(dev, 0);
 		intel_finish_page_flip_plane(dev, 0);
@@ -519,29 +546,15 @@ static irqreturn_t ivybridge_irq_handler
 		intel_finish_page_flip_plane(dev, 1);
 	}
 
-	if (de_iir & DE_PIPEA_VBLANK_IVB)
-		drm_handle_vblank(dev, 0);
-
-	if (de_iir & DE_PIPEB_VBLANK_IVB)
-		drm_handle_vblank(dev, 1);
-
 	/* check event from PCH */
 	if (de_iir & DE_PCH_EVENT_IVB) {
 		if (pch_iir & SDE_HOTPLUG_MASK_CPT)
 			queue_work(dev_priv->wq, &dev_priv->hotplug_work);
-		pch_irq_handler(dev);
+		pch_irq_handler(dev, pch_iir);
 	}
 
-	if (pm_iir & GEN6_PM_DEFERRED_EVENTS) {
-		unsigned long flags;
-		spin_lock_irqsave(&dev_priv->rps_lock, flags);
-		WARN(dev_priv->pm_iir & pm_iir, "Missed a PM interrupt\n");
-		dev_priv->pm_iir |= pm_iir;
-		I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir);
-		POSTING_READ(GEN6_PMIMR);
-		spin_unlock_irqrestore(&dev_priv->rps_lock, flags);
-		queue_work(dev_priv->wq, &dev_priv->rps_work);
-	}
+	if (pm_iir & GEN6_PM_DEFERRED_EVENTS)
+		gen6_queue_rps_work(dev_priv, pm_iir);
 
 	/* should clear PCH hotplug event before clear CPU irq */
 	I915_WRITE(SDEIIR, pch_iir);
@@ -609,6 +622,12 @@ static irqreturn_t ironlake_irq_handler(
 	if (de_iir & DE_GSE)
 		intel_opregion_gse_intr(dev);
 
+	if (de_iir & DE_PIPEA_VBLANK)
+		drm_handle_vblank(dev, 0);
+
+	if (de_iir & DE_PIPEB_VBLANK)
+		drm_handle_vblank(dev, 1);
+
 	if (de_iir & DE_PLANEA_FLIP_DONE) {
 		intel_prepare_page_flip(dev, 0);
 		intel_finish_page_flip_plane(dev, 0);
@@ -619,17 +638,11 @@ static irqreturn_t ironlake_irq_handler(
 		intel_finish_page_flip_plane(dev, 1);
 	}
 
-	if (de_iir & DE_PIPEA_VBLANK)
-		drm_handle_vblank(dev, 0);
-
-	if (de_iir & DE_PIPEB_VBLANK)
-		drm_handle_vblank(dev, 1);
-
 	/* check event from PCH */
 	if (de_iir & DE_PCH_EVENT) {
 		if (pch_iir & hotplug_mask)
 			queue_work(dev_priv->wq, &dev_priv->hotplug_work);
-		pch_irq_handler(dev);
+		pch_irq_handler(dev, pch_iir);
 	}
 
 	if (de_iir & DE_PCU_EVENT) {
@@ -637,25 +650,8 @@ static irqreturn_t ironlake_irq_handler(
 		i915_handle_rps_change(dev);
 	}
 
-	if (IS_GEN6(dev) && pm_iir & GEN6_PM_DEFERRED_EVENTS) {
-		/*
-		 * IIR bits should never already be set because IMR should
-		 * prevent an interrupt from being shown in IIR. The warning
-		 * displays a case where we've unsafely cleared
-		 * dev_priv->pm_iir. Although missing an interrupt of the same
-		 * type is not a problem, it displays a problem in the logic.
-		 *
-		 * The mask bit in IMR is cleared by rps_work.
-		 */
-		unsigned long flags;
-		spin_lock_irqsave(&dev_priv->rps_lock, flags);
-		WARN(dev_priv->pm_iir & pm_iir, "Missed a PM interrupt\n");
-		dev_priv->pm_iir |= pm_iir;
-		I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir);
-		POSTING_READ(GEN6_PMIMR);
-		spin_unlock_irqrestore(&dev_priv->rps_lock, flags);
-		queue_work(dev_priv->wq, &dev_priv->rps_work);
-	}
+	if (IS_GEN6(dev) && pm_iir & GEN6_PM_DEFERRED_EVENTS)
+		gen6_queue_rps_work(dev_priv, pm_iir);
 
 	/* should clear PCH hotplug event before clear CPU irq */
 	I915_WRITE(SDEIIR, pch_iir);
@@ -2055,10 +2051,22 @@ static int i915_driver_irq_postinstall(s
 			hotplug_en |= HDMIC_HOTPLUG_INT_EN;
 		if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
 			hotplug_en |= HDMID_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOC_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		if (IS_G4X(dev)) {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_G4X)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_G4X)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		} else if (IS_GEN4(dev)) {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I965)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I965)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		} else {
+			if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS_I915)
+				hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+			if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS_I915)
+				hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		}
 		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) {
 			hotplug_en |= CRT_HOTPLUG_INT_EN;
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_reg.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_reg.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_reg.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_reg.h	2013-07-13 14:03:57.000000000 -0400
@@ -27,6 +27,8 @@
 
 #define _PIPE(pipe, a, b) ((a) + (pipe)*((b)-(a)))
 
+#define _MASKED_BIT_ENABLE(a) (((a) << 16) | (a))
+
 /*
  * The Bridge device's PCI config space has information about the
  * fb aperture size and the amount of pre-reserved memory.
@@ -197,6 +199,14 @@
 #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
 #define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
 #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
+/* IVB has funny definitions for which plane to flip. */
+#define   MI_DISPLAY_FLIP_IVB_PLANE_A  (0 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_B  (1 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_A (2 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_B (3 << 19)
+#define   MI_DISPLAY_FLIP_IVB_PLANE_C  (4 << 19)
+#define   MI_DISPLAY_FLIP_IVB_SPRITE_C (5 << 19)
+
 #define MI_SET_CONTEXT		MI_INSTR(0x18, 0)
 #define   MI_MM_SPACE_GTT		(1<<8)
 #define   MI_MM_SPACE_PHYSICAL		(0<<8)
@@ -425,6 +435,7 @@
  * the enables for writing to the corresponding low bit.
  */
 #define _3D_CHICKEN	0x02084
+#define _3D_CHICKEN_HIZ_PLANE_DISABLE_MSAA_4X_SNB	(1 << 10)
 #define _3D_CHICKEN2	0x0208c
 /* Disables pipelining of read flushes past the SF-WIZ interface.
  * Required on all Ironlake steppings according to the B-Spec, but the
@@ -437,6 +448,9 @@
 # define VS_TIMER_DISPATCH				(1 << 6)
 # define MI_FLUSH_ENABLE				(1 << 12)
 
+#define GEN6_GT_MODE	0x20d0
+#define   GEN6_GT_MODE_HI	(1 << 9)
+
 #define GFX_MODE	0x02520
 #define GFX_MODE_GEN7	0x0229c
 #define RING_MODE_GEN7(ring)	((ring)->mmio_base+0x29c)
@@ -615,6 +629,21 @@
 
 #define GEN6_BSD_RNCID			0x12198
 
+#define GEN7_FF_THREAD_MODE		0x20a0
+#define   GEN7_FF_SCHED_MASK		0x0077070
+#define   GEN7_FF_TS_SCHED_HS1		(0x5<<16)
+#define   GEN7_FF_TS_SCHED_HS0		(0x3<<16)
+#define   GEN7_FF_TS_SCHED_LOAD_BALANCE	(0x1<<16)
+#define   GEN7_FF_TS_SCHED_HW		(0x0<<16) /* Default */
+#define   GEN7_FF_VS_SCHED_HS1		(0x5<<12)
+#define   GEN7_FF_VS_SCHED_HS0		(0x3<<12)
+#define   GEN7_FF_VS_SCHED_LOAD_BALANCE	(0x1<<12) /* Default */
+#define   GEN7_FF_VS_SCHED_HW		(0x0<<12)
+#define   GEN7_FF_DS_SCHED_HS1		(0x5<<4)
+#define   GEN7_FF_DS_SCHED_HS0		(0x3<<4)
+#define   GEN7_FF_DS_SCHED_LOAD_BALANCE	(0x1<<4)  /* Default */
+#define   GEN7_FF_DS_SCHED_HW		(0x0<<4)
+
 /*
  * Framebuffer compression (915+ only)
  */
@@ -1468,14 +1497,20 @@
 #define   DPC_HOTPLUG_INT_STATUS		(1 << 28)
 #define   HDMID_HOTPLUG_INT_STATUS		(1 << 27)
 #define   DPD_HOTPLUG_INT_STATUS		(1 << 27)
+/* CRT/TV common between gen3+ */
 #define   CRT_HOTPLUG_INT_STATUS		(1 << 11)
 #define   TV_HOTPLUG_INT_STATUS			(1 << 10)
 #define   CRT_HOTPLUG_MONITOR_MASK		(3 << 8)
 #define   CRT_HOTPLUG_MONITOR_COLOR		(3 << 8)
 #define   CRT_HOTPLUG_MONITOR_MONO		(2 << 8)
 #define   CRT_HOTPLUG_MONITOR_NONE		(0 << 8)
-#define   SDVOC_HOTPLUG_INT_STATUS		(1 << 7)
-#define   SDVOB_HOTPLUG_INT_STATUS		(1 << 6)
+/* SDVO is different across gen3/4 */
+#define   SDVOC_HOTPLUG_INT_STATUS_G4X		(1 << 3)
+#define   SDVOB_HOTPLUG_INT_STATUS_G4X		(1 << 2)
+#define   SDVOC_HOTPLUG_INT_STATUS_I965		(3 << 4)
+#define   SDVOB_HOTPLUG_INT_STATUS_I965		(3 << 2)
+#define   SDVOC_HOTPLUG_INT_STATUS_I915		(1 << 7)
+#define   SDVOB_HOTPLUG_INT_STATUS_I915		(1 << 6)
 
 /* SDVO port control */
 #define SDVOB			0x61140
@@ -3000,6 +3035,8 @@
 #define _PFA_CTL_1               0x68080
 #define _PFB_CTL_1               0x68880
 #define  PF_ENABLE              (1<<31)
+#define  PF_PIPE_SEL_MASK_IVB	(3<<29)
+#define  PF_PIPE_SEL_IVB(pipe)	((pipe)<<29)
 #define  PF_FILTER_MASK		(3<<23)
 #define  PF_FILTER_PROGRAMMED	(0<<23)
 #define  PF_FILTER_MED_3x3	(1<<23)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_suspend.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_suspend.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/i915_suspend.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/i915_suspend.c	2013-07-13 14:03:57.000000000 -0400
@@ -740,8 +740,11 @@ static void i915_restore_display(struct
 	if (HAS_PCH_SPLIT(dev)) {
 		I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->saveBLC_PWM_CTL);
 		I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->saveBLC_PWM_CTL2);
-		I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL);
+		/* NOTE: BLC_PWM_CPU_CTL must be written after BLC_PWM_CPU_CTL2;
+		 * otherwise we get blank eDP screen after S3 on some machines
+		 */
 		I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->saveBLC_CPU_PWM_CTL2);
+		I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL);
 		I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS);
 		I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS);
 		I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_bios.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_bios.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_bios.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_bios.c	2013-07-13 14:03:57.000000000 -0400
@@ -174,6 +174,28 @@ get_lvds_dvo_timing(const struct bdb_lvd
 	return (struct lvds_dvo_timing *)(entry + dvo_timing_offset);
 }
 
+/* get lvds_fp_timing entry
+ * this function may return NULL if the corresponding entry is invalid
+ */
+static const struct lvds_fp_timing *
+get_lvds_fp_timing(const struct bdb_header *bdb,
+		   const struct bdb_lvds_lfp_data *data,
+		   const struct bdb_lvds_lfp_data_ptrs *ptrs,
+		   int index)
+{
+	size_t data_ofs = (const u8 *)data - (const u8 *)bdb;
+	u16 data_size = ((const u16 *)data)[-1]; /* stored in header */
+	size_t ofs;
+
+	if (index >= ARRAY_SIZE(ptrs->ptr))
+		return NULL;
+	ofs = ptrs->ptr[index].fp_timing_offset;
+	if (ofs < data_ofs ||
+	    ofs + sizeof(struct lvds_fp_timing) > data_ofs + data_size)
+		return NULL;
+	return (const struct lvds_fp_timing *)((const u8 *)bdb + ofs);
+}
+
 /* Try to find integrated panel data */
 static void
 parse_lfp_panel_data(struct drm_i915_private *dev_priv,
@@ -183,6 +205,7 @@ parse_lfp_panel_data(struct drm_i915_pri
 	const struct bdb_lvds_lfp_data *lvds_lfp_data;
 	const struct bdb_lvds_lfp_data_ptrs *lvds_lfp_data_ptrs;
 	const struct lvds_dvo_timing *panel_dvo_timing;
+	const struct lvds_fp_timing *fp_timing;
 	struct drm_display_mode *panel_fixed_mode;
 	int i, downclock;
 
@@ -244,6 +267,19 @@ parse_lfp_panel_data(struct drm_i915_pri
 			      "Normal Clock %dKHz, downclock %dKHz\n",
 			      panel_fixed_mode->clock, 10*downclock);
 	}
+
+	fp_timing = get_lvds_fp_timing(bdb, lvds_lfp_data,
+				       lvds_lfp_data_ptrs,
+				       lvds_options->panel_type);
+	if (fp_timing) {
+		/* check the resolution, just to be sure */
+		if (fp_timing->x_res == panel_fixed_mode->hdisplay &&
+		    fp_timing->y_res == panel_fixed_mode->vdisplay) {
+			dev_priv->bios_lvds_val = fp_timing->lvds_reg_val;
+			DRM_DEBUG_KMS("VBT initial LVDS value %x\n",
+				      dev_priv->bios_lvds_val);
+		}
+	}
 }
 
 /* Try to find sdvo panel data */
@@ -459,12 +495,8 @@ parse_edp(struct drm_i915_private *dev_p
 
 	edp = find_section(bdb, BDB_EDP);
 	if (!edp) {
-		if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support) {
-			DRM_DEBUG_KMS("No eDP BDB found but eDP panel "
-				      "supported, assume %dbpp panel color "
-				      "depth.\n",
-				      dev_priv->edp.bpp);
-		}
+		if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->edp.support)
+			DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported.\n");
 		return;
 	}
 
@@ -617,9 +649,6 @@ init_vbt_defaults(struct drm_i915_privat
 	dev_priv->lvds_use_ssc = 1;
 	dev_priv->lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1);
 	DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->lvds_ssc_freq);
-
-	/* eDP data */
-	dev_priv->edp.bpp = 18;
 }
 
 static int __init intel_no_opregion_vbt_callback(const struct dmi_system_id *id)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_crt.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_crt.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_crt.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_crt.c	2013-07-13 14:03:57.000000000 -0400
@@ -266,6 +266,36 @@ static bool intel_crt_detect_hotplug(str
 	return ret;
 }
 
+static struct edid *intel_crt_get_edid(struct drm_connector *connector,
+				struct i2c_adapter *i2c)
+{
+	struct edid *edid;
+
+	edid = drm_get_edid(connector, i2c);
+
+	if (!edid && !intel_gmbus_is_forced_bit(i2c)) {
+		DRM_DEBUG_KMS("CRT GMBUS EDID read failed, retry using GPIO bit-banging\n");
+		intel_gmbus_force_bit(i2c, true);
+		edid = drm_get_edid(connector, i2c);
+		intel_gmbus_force_bit(i2c, false);
+	}
+
+	return edid;
+}
+
+/* local version of intel_ddc_get_modes() to use intel_crt_get_edid() */
+static int intel_crt_ddc_get_modes(struct drm_connector *connector,
+				struct i2c_adapter *adapter)
+{
+	struct edid *edid;
+
+	edid = intel_crt_get_edid(connector, adapter);
+	if (!edid)
+		return 0;
+
+	return intel_connector_update_modes(connector, edid);
+}
+
 static bool intel_crt_detect_ddc(struct drm_connector *connector)
 {
 	struct intel_crt *crt = intel_attached_crt(connector);
@@ -279,7 +309,7 @@ static bool intel_crt_detect_ddc(struct
 		struct edid *edid;
 		bool is_digital = false;
 
-		edid = drm_get_edid(connector,
+		edid = intel_crt_get_edid(connector,
 			&dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
 		/*
 		 * This may be a DVI-I connector with a shared DDC
@@ -477,13 +507,13 @@ static int intel_crt_get_modes(struct dr
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret;
 
-	ret = intel_ddc_get_modes(connector,
+	ret = intel_crt_ddc_get_modes(connector,
 				 &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
 	if (ret || !IS_G4X(dev))
 		return ret;
 
 	/* Try to probe digital port for output in DVI-I -> VGA mode. */
-	return intel_ddc_get_modes(connector,
+	return intel_crt_ddc_get_modes(connector,
 				   &dev_priv->gmbus[GMBUS_PORT_DPB].adapter);
 }
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_display.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_display.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_display.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_display.c	2013-07-13 14:03:57.000000000 -0400
@@ -142,8 +142,8 @@ static const intel_limit_t intel_limits_
 	.vco = { .min = 1400000, .max = 2800000 },
 	.n = { .min = 1, .max = 6 },
 	.m = { .min = 70, .max = 120 },
-	.m1 = { .min = 10, .max = 22 },
-	.m2 = { .min = 5, .max = 9 },
+	.m1 = { .min = 8, .max = 18 },
+	.m2 = { .min = 3, .max = 7 },
 	.p = { .min = 5, .max = 80 },
 	.p1 = { .min = 1, .max = 8 },
 	.p2 = { .dot_limit = 200000,
@@ -360,6 +360,27 @@ static const intel_limit_t intel_limits_
 	.find_pll = intel_find_pll_ironlake_dp,
 };
 
+static bool is_dual_link_lvds(struct drm_i915_private *dev_priv,
+			      unsigned int reg)
+{
+	unsigned int val;
+
+	if (dev_priv->lvds_val)
+		val = dev_priv->lvds_val;
+	else {
+		/* BIOS should set the proper LVDS register value at boot, but
+		 * in reality, it doesn't set the value when the lid is closed;
+		 * we need to check "the value to be set" in VBT when LVDS
+		 * register is uninitialized.
+		 */
+		val = I915_READ(reg);
+		if (!(val & ~LVDS_DETECTED))
+			val = dev_priv->bios_lvds_val;
+		dev_priv->lvds_val = val;
+	}
+	return (val & LVDS_CLKB_POWER_MASK) == LVDS_CLKB_POWER_UP;
+}
+
 static const intel_limit_t *intel_ironlake_limit(struct drm_crtc *crtc,
 						int refclk)
 {
@@ -368,8 +389,7 @@ static const intel_limit_t *intel_ironla
 	const intel_limit_t *limit;
 
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
-		if ((I915_READ(PCH_LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP) {
+		if (is_dual_link_lvds(dev_priv, PCH_LVDS)) {
 			/* LVDS dual channel */
 			if (refclk == 100000)
 				limit = &intel_limits_ironlake_dual_lvds_100m;
@@ -397,8 +417,7 @@ static const intel_limit_t *intel_g4x_li
 	const intel_limit_t *limit;
 
 	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
-		if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP)
+		if (is_dual_link_lvds(dev_priv, LVDS))
 			/* LVDS with dual channel */
 			limit = &intel_limits_g4x_dual_channel_lvds;
 		else
@@ -536,8 +555,7 @@ intel_find_best_PLL(const intel_limit_t
 		 * reliably set up different single/dual channel state, if we
 		 * even can.
 		 */
-		if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
-		    LVDS_CLKB_POWER_UP)
+		if (is_dual_link_lvds(dev_priv, LVDS))
 			clock.p2 = limit->p2.p2_fast;
 		else
 			clock.p2 = limit->p2.p2_slow;
@@ -1099,7 +1117,7 @@ static void assert_pch_hdmi_disabled(str
 				     enum pipe pipe, int reg)
 {
 	u32 val = I915_READ(reg);
-	WARN(hdmi_pipe_enabled(dev_priv, val, pipe),
+	WARN(hdmi_pipe_enabled(dev_priv, pipe, val),
 	     "PCH HDMI (0x%08x) enabled on transcoder %c, should be disabled\n",
 	     reg, pipe_name(pipe));
 }
@@ -1116,13 +1134,13 @@ static void assert_pch_ports_disabled(st
 
 	reg = PCH_ADPA;
 	val = I915_READ(reg);
-	WARN(adpa_pipe_enabled(dev_priv, val, pipe),
+	WARN(adpa_pipe_enabled(dev_priv, pipe, val),
 	     "PCH VGA enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 
 	reg = PCH_LVDS;
 	val = I915_READ(reg);
-	WARN(lvds_pipe_enabled(dev_priv, val, pipe),
+	WARN(lvds_pipe_enabled(dev_priv, pipe, val),
 	     "PCH LVDS enabled on transcoder %c, should be disabled\n",
 	     pipe_name(pipe));
 
@@ -1487,7 +1505,7 @@ static void disable_pch_hdmi(struct drm_
 			     enum pipe pipe, int reg)
 {
 	u32 val = I915_READ(reg);
-	if (hdmi_pipe_enabled(dev_priv, val, pipe)) {
+	if (hdmi_pipe_enabled(dev_priv, pipe, val)) {
 		DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n",
 			      reg, pipe);
 		I915_WRITE(reg, val & ~PORT_ENABLE);
@@ -1509,12 +1527,12 @@ static void intel_disable_pch_ports(stru
 
 	reg = PCH_ADPA;
 	val = I915_READ(reg);
-	if (adpa_pipe_enabled(dev_priv, val, pipe))
+	if (adpa_pipe_enabled(dev_priv, pipe, val))
 		I915_WRITE(reg, val & ~ADPA_DAC_ENABLE);
 
 	reg = PCH_LVDS;
 	val = I915_READ(reg);
-	if (lvds_pipe_enabled(dev_priv, val, pipe)) {
+	if (lvds_pipe_enabled(dev_priv, pipe, val)) {
 		DRM_DEBUG_KMS("disable lvds on pipe %d val 0x%08x\n", pipe, val);
 		I915_WRITE(reg, val & ~LVDS_PORT_EN);
 		POSTING_READ(reg);
@@ -2424,18 +2442,6 @@ static void intel_fdi_normal_train(struc
 			   FDI_FE_ERRC_ENABLE);
 }
 
-static void cpt_phase_pointer_enable(struct drm_device *dev, int pipe)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 flags = I915_READ(SOUTH_CHICKEN1);
-
-	flags |= FDI_PHASE_SYNC_OVR(pipe);
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* once to unlock... */
-	flags |= FDI_PHASE_SYNC_EN(pipe);
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to enable */
-	POSTING_READ(SOUTH_CHICKEN1);
-}
-
 /* The FDI link training functions for ILK/Ibexpeak. */
 static void ironlake_fdi_link_train(struct drm_crtc *crtc)
 {
@@ -2586,9 +2592,6 @@ static void gen6_fdi_link_train(struct d
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
-
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);
 		temp = I915_READ(reg);
@@ -2707,9 +2710,6 @@ static void ivb_manual_fdi_link_train(st
 	POSTING_READ(reg);
 	udelay(150);
 
-	if (HAS_PCH_CPT(dev))
-		cpt_phase_pointer_enable(dev, pipe);
-
 	for (i = 0; i < 4; i++) {
 		reg = FDI_TX_CTL(pipe);
 		temp = I915_READ(reg);
@@ -2819,17 +2819,6 @@ static void ironlake_fdi_pll_enable(stru
 	}
 }
 
-static void cpt_phase_pointer_disable(struct drm_device *dev, int pipe)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-	u32 flags = I915_READ(SOUTH_CHICKEN1);
-
-	flags &= ~(FDI_PHASE_SYNC_EN(pipe));
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* once to disable... */
-	flags &= ~(FDI_PHASE_SYNC_OVR(pipe));
-	I915_WRITE(SOUTH_CHICKEN1, flags); /* then again to lock */
-	POSTING_READ(SOUTH_CHICKEN1);
-}
 static void ironlake_fdi_disable(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -2859,8 +2848,6 @@ static void ironlake_fdi_disable(struct
 		I915_WRITE(FDI_RX_CHICKEN(pipe),
 			   I915_READ(FDI_RX_CHICKEN(pipe) &
 				     ~FDI_RX_PHASE_SYNC_POINTER_EN));
-	} else if (HAS_PCH_CPT(dev)) {
-		cpt_phase_pointer_disable(dev, pipe);
 	}
 
 	/* still set train pattern 1 */
@@ -2908,18 +2895,37 @@ static void intel_clear_scanline_wait(st
 		I915_WRITE_CTL(ring, tmp);
 }
 
+static bool intel_crtc_has_pending_flip(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	unsigned long flags;
+	bool pending;
+
+	if (atomic_read(&dev_priv->mm.wedged))
+		return false;
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+	pending = to_intel_crtc(crtc)->unpin_work != NULL;
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+
+	return pending;
+}
+
 static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
 {
-	struct drm_i915_gem_object *obj;
-	struct drm_i915_private *dev_priv;
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
 
 	if (crtc->fb == NULL)
 		return;
 
-	obj = to_intel_framebuffer(crtc->fb)->obj;
-	dev_priv = crtc->dev->dev_private;
 	wait_event(dev_priv->pending_flip_queue,
-		   atomic_read(&obj->pending_flip) == 0);
+		   !intel_crtc_has_pending_flip(crtc));
+
+	mutex_lock(&dev->struct_mutex);
+	intel_finish_fb(crtc->fb);
+	mutex_unlock(&dev->struct_mutex);
 }
 
 static bool intel_crtc_driving_pch(struct drm_crtc *crtc)
@@ -3095,7 +3101,11 @@ static void ironlake_crtc_enable(struct
 		 * as some pre-programmed values are broken,
 		 * e.g. x201.
 		 */
-		I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
+		if (IS_IVYBRIDGE(dev))
+			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3 |
+						 PF_PIPE_SEL_IVB(pipe));
+		else
+			I915_WRITE(PF_CTL(pipe), PF_ENABLE | PF_FILTER_MED_3x3);
 		I915_WRITE(PF_WIN_POS(pipe), dev_priv->pch_pf_pos);
 		I915_WRITE(PF_WIN_SZ(pipe), dev_priv->pch_pf_size);
 	}
@@ -3293,6 +3303,7 @@ static void i9xx_crtc_disable(struct drm
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	int pipe = intel_crtc->pipe;
 	int plane = intel_crtc->plane;
+	u32 pctl;
 
 	if (!intel_crtc->active)
 		return;
@@ -3308,6 +3319,13 @@ static void i9xx_crtc_disable(struct drm
 
 	intel_disable_plane(dev_priv, plane, pipe);
 	intel_disable_pipe(dev_priv, pipe);
+
+	/* Disable pannel fitter if it is on this pipe. */
+	pctl = I915_READ(PFIT_CONTROL);
+	if ((pctl & PFIT_ENABLE) &&
+	    ((pctl & PFIT_PIPE_MASK) >> PFIT_PIPE_SHIFT) == pipe)
+		I915_WRITE(PFIT_CONTROL, 0);
+
 	intel_disable_pll(dev_priv, pipe);
 
 	intel_crtc->active = false;
@@ -3381,23 +3399,6 @@ static void intel_crtc_disable(struct dr
 	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 	struct drm_device *dev = crtc->dev;
 
-	/* Flush any pending WAITs before we disable the pipe. Note that
-	 * we need to drop the struct_mutex in order to acquire it again
-	 * during the lowlevel dpms routines around a couple of the
-	 * operations. It does not look trivial nor desirable to move
-	 * that locking higher. So instead we leave a window for the
-	 * submission of further commands on the fb before we can actually
-	 * disable it. This race with userspace exists anyway, and we can
-	 * only rely on the pipe being disabled by userspace after it
-	 * receives the hotplug notification and has flushed any pending
-	 * batches.
-	 */
-	if (crtc->fb) {
-		mutex_lock(&dev->struct_mutex);
-		intel_finish_fb(crtc->fb);
-		mutex_unlock(&dev->struct_mutex);
-	}
-
 	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
 	assert_plane_disabled(dev->dev_private, to_intel_crtc(crtc)->plane);
 	assert_pipe_disabled(dev->dev_private, to_intel_crtc(crtc)->pipe);
@@ -4982,17 +4983,6 @@ static bool intel_choose_pipe_bpp_dither
 			continue;
 		}
 
-		if (intel_encoder->type == INTEL_OUTPUT_EDP) {
-			/* Use VBT settings if we have an eDP panel */
-			unsigned int edp_bpc = dev_priv->edp.bpp / 3;
-
-			if (edp_bpc < display_bpc) {
-				DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc);
-				display_bpc = edp_bpc;
-			}
-			continue;
-		}
-
 		/* Not one of the known troublemakers, check the EDID */
 		list_for_each_entry(connector, &dev->mode_config.connector_list,
 				    head) {
@@ -5007,6 +4997,17 @@ static bool intel_choose_pipe_bpp_dither
 			}
 		}
 
+		if (intel_encoder->type == INTEL_OUTPUT_EDP) {
+			/* Use VBT settings if we have an eDP panel */
+			unsigned int edp_bpc = dev_priv->edp.bpp / 3;
+
+			if (edp_bpc && edp_bpc < display_bpc) {
+				DRM_DEBUG_KMS("clamping display bpc (was %d) to eDP (%d)\n", display_bpc, edp_bpc);
+				display_bpc = edp_bpc;
+			}
+			continue;
+		}
+
 		/*
 		 * HDMI is either 12 or 8, so if the display lets 10bpc sneak
 		 * through, clamp it down.  (Note: >12bpc will be caught below.)
@@ -5329,7 +5330,7 @@ static int i9xx_crtc_mode_set(struct drm
 	/* default to 8bpc */
 	pipeconf &= ~(PIPECONF_BPP_MASK | PIPECONF_DITHER_EN);
 	if (is_dp) {
-		if (mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
+		if (adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC) {
 			pipeconf |= PIPECONF_BPP_6 |
 				    PIPECONF_DITHER_EN |
 				    PIPECONF_DITHER_TYPE_SP;
@@ -5793,7 +5794,7 @@ static int ironlake_crtc_mode_set(struct
 	/* determine panel color depth */
 	temp = I915_READ(PIPECONF(pipe));
 	temp &= ~PIPE_BPC_MASK;
-	dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, mode);
+	dither = intel_choose_pipe_bpp_dither(crtc, &pipe_bpp, adjusted_mode);
 	switch (pipe_bpp) {
 	case 18:
 		temp |= PIPE_6BPC;
@@ -7286,9 +7287,8 @@ static void do_intel_finish_page_flip(st
 
 	atomic_clear_mask(1 << intel_crtc->plane,
 			  &obj->pending_flip.counter);
-	if (atomic_read(&obj->pending_flip) == 0)
-		wake_up(&dev_priv->pending_flip_queue);
 
+	wake_up(&dev_priv->pending_flip_queue);
 	schedule_work(&work->work);
 
 	trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj);
@@ -7340,14 +7340,14 @@ static int intel_gen2_queue_flip(struct
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
 	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	/* Can't queue multiple flips, so wait for the previous
 	 * one to finish before executing the next.
@@ -7364,7 +7364,11 @@ static int intel_gen2_queue_flip(struct
 	OUT_RING(obj->gtt_offset + offset);
 	OUT_RING(0); /* aux display base address, unused */
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7381,14 +7385,14 @@ static int intel_gen3_queue_flip(struct
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
 	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	if (intel_crtc->plane)
 		flip_mask = MI_WAIT_FOR_PLANE_B_FLIP;
@@ -7403,7 +7407,11 @@ static int intel_gen3_queue_flip(struct
 	OUT_RING(MI_NOOP);
 
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7419,11 +7427,11 @@ static int intel_gen4_queue_flip(struct
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	ret = BEGIN_LP_RING(4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	/* i965+ uses the linear or tiled offsets from the
 	 * Display Registers (which do not change across a page-flip)
@@ -7442,7 +7450,11 @@ static int intel_gen4_queue_flip(struct
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	OUT_RING(pf | pipesrc);
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7458,11 +7470,11 @@ static int intel_gen6_queue_flip(struct
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, LP_RING(dev_priv));
 	if (ret)
-		goto out;
+		goto err;
 
 	ret = BEGIN_LP_RING(4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
@@ -7479,7 +7491,11 @@ static int intel_gen6_queue_flip(struct
 	pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff;
 	OUT_RING(pf | pipesrc);
 	ADVANCE_LP_RING();
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7497,22 +7513,43 @@ static int intel_gen7_queue_flip(struct
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_ring_buffer *ring = &dev_priv->ring[BCS];
+	uint32_t plane_bit = 0;
 	int ret;
 
 	ret = intel_pin_and_fence_fb_obj(dev, obj, ring);
 	if (ret)
-		goto out;
+		goto err;
+
+	switch(intel_crtc->plane) {
+	case PLANE_A:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
+		break;
+	case PLANE_B:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_B;
+		break;
+	case PLANE_C:
+		plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_C;
+		break;
+	default:
+		WARN_ONCE(1, "unknown plane in flip command\n");
+		ret = -ENODEV;
+		goto err_unpin;
+	}
 
 	ret = intel_ring_begin(ring, 4);
 	if (ret)
-		goto out;
+		goto err_unpin;
 
-	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
+	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
 	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
 	intel_ring_emit(ring, (obj->gtt_offset));
 	intel_ring_emit(ring, (MI_NOOP));
 	intel_ring_advance(ring);
-out:
+	return 0;
+
+err_unpin:
+	intel_unpin_fb_obj(obj);
+err:
 	return ret;
 }
 
@@ -7530,8 +7567,8 @@ static int intel_crtc_page_flip(struct d
 {
 	struct drm_device *dev = crtc->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_framebuffer *intel_fb;
-	struct drm_i915_gem_object *obj;
+	struct drm_framebuffer *old_fb = crtc->fb;
+	struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_unpin_work *work;
 	unsigned long flags;
@@ -7543,8 +7580,7 @@ static int intel_crtc_page_flip(struct d
 
 	work->event = event;
 	work->dev = crtc->dev;
-	intel_fb = to_intel_framebuffer(crtc->fb);
-	work->old_fb_obj = intel_fb->obj;
+	work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
 	INIT_WORK(&work->work, intel_unpin_work_fn);
 
 	ret = drm_vblank_get(dev, intel_crtc->pipe);
@@ -7564,9 +7600,6 @@ static int intel_crtc_page_flip(struct d
 	intel_crtc->unpin_work = work;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
-	intel_fb = to_intel_framebuffer(fb);
-	obj = intel_fb->obj;
-
 	mutex_lock(&dev->struct_mutex);
 
 	/* Reference the objects for the scheduled work. */
@@ -7597,6 +7630,7 @@ static int intel_crtc_page_flip(struct d
 
 cleanup_pending:
 	atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
+	crtc->fb = old_fb;
 	drm_gem_object_unreference(&work->old_fb_obj->base);
 	drm_gem_object_unreference(&obj->base);
 	mutex_unlock(&dev->struct_mutex);
@@ -7617,10 +7651,11 @@ static void intel_sanitize_modesetting(s
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 reg, val;
+	int i;
 
 	/* Clear any frame start delays used for debugging left by the BIOS */
-	for_each_pipe(pipe) {
-		reg = PIPECONF(pipe);
+	for_each_pipe(i) {
+		reg = PIPECONF(i);
 		I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
 	}
 
@@ -8326,7 +8361,7 @@ void gen6_enable_rps(struct drm_i915_pri
 	I915_WRITE(GEN6_RC_SLEEP, 0);
 	I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
 	I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
-	I915_WRITE(GEN6_RC6p_THRESHOLD, 100000);
+	I915_WRITE(GEN6_RC6p_THRESHOLD, 150000);
 	I915_WRITE(GEN6_RC6pp_THRESHOLD, 64000); /* unused */
 
 	rc6_mode = intel_enable_rc6(dev_priv->dev);
@@ -8367,7 +8402,7 @@ void gen6_enable_rps(struct drm_i915_pri
 	I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
 	I915_WRITE(GEN6_RP_CONTROL,
 		   GEN6_RP_MEDIA_TURBO |
-		   GEN6_RP_MEDIA_HW_MODE |
+		   GEN6_RP_MEDIA_HW_NORMAL_MODE |
 		   GEN6_RP_MEDIA_IS_GFX |
 		   GEN6_RP_ENABLE |
 		   GEN6_RP_UP_BUSY_AVG |
@@ -8562,6 +8597,10 @@ static void gen6_init_clock_gating(struc
 		   I915_READ(ILK_DISPLAY_CHICKEN2) |
 		   ILK_ELPIN_409_SELECT);
 
+	/* WaDisableHiZPlanesWhenMSAAEnabled */
+	I915_WRITE(_3D_CHICKEN,
+		   _MASKED_BIT_ENABLE(_3D_CHICKEN_HIZ_PLANE_DISABLE_MSAA_4X_SNB));
+
 	I915_WRITE(WM3_LP_ILK, 0);
 	I915_WRITE(WM2_LP_ILK, 0);
 	I915_WRITE(WM1_LP_ILK, 0);
@@ -8610,6 +8649,23 @@ static void gen6_init_clock_gating(struc
 			   DISPPLANE_TRICKLE_FEED_DISABLE);
 		intel_flush_display_plane(dev_priv, pipe);
 	}
+
+	/* The default value should be 0x200 according to docs, but the two
+	 * platforms I checked have a 0 for this. (Maybe BIOS overrides?) */
+	I915_WRITE(GEN6_GT_MODE, 0xffff << 16);
+	I915_WRITE(GEN6_GT_MODE, GEN6_GT_MODE_HI << 16 | GEN6_GT_MODE_HI);
+}
+
+static void gen7_setup_fixed_func_scheduler(struct drm_i915_private *dev_priv)
+{
+	uint32_t reg = I915_READ(GEN7_FF_THREAD_MODE);
+
+	reg &= ~GEN7_FF_SCHED_MASK;
+	reg |= GEN7_FF_TS_SCHED_HW;
+	reg |= GEN7_FF_VS_SCHED_HW;
+	reg |= GEN7_FF_DS_SCHED_HW;
+
+	I915_WRITE(GEN7_FF_THREAD_MODE, reg);
 }
 
 static void ivybridge_init_clock_gating(struct drm_device *dev)
@@ -8656,6 +8712,8 @@ static void ivybridge_init_clock_gating(
 			   DISPPLANE_TRICKLE_FEED_DISABLE);
 		intel_flush_display_plane(dev_priv, pipe);
 	}
+
+	gen7_setup_fixed_func_scheduler(dev_priv);
 }
 
 static void g4x_init_clock_gating(struct drm_device *dev)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_dp.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_dp.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_dp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_dp.c	2013-07-13 14:03:57.000000000 -0400
@@ -368,7 +368,7 @@ intel_dp_aux_ch(struct intel_dp *intel_d
 	int recv_bytes;
 	uint32_t status;
 	uint32_t aux_clock_divider;
-	int try, precharge = 5;
+	int try, precharge;
 
 	intel_dp_check_edp(intel_dp);
 	/* The clock divider is based off the hrawclk,
@@ -388,6 +388,11 @@ intel_dp_aux_ch(struct intel_dp *intel_d
 	else
 		aux_clock_divider = intel_hrawclk(dev) / 2;
 
+	if (IS_GEN6(dev))
+		precharge = 3;
+	else
+		precharge = 5;
+
 	/* Try to wait for any previous AUX channel activity */
 	for (try = 0; try < 3; try++) {
 		status = I915_READ(ch_ctl);
@@ -707,8 +712,8 @@ intel_dp_mode_fixup(struct drm_encoder *
 
 	bpp = adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24;
 
-	for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
-		for (clock = 0; clock <= max_clock; clock++) {
+	for (clock = 0; clock <= max_clock; clock++) {
+		for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
 			int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
 
 			if (intel_dp_link_required(mode->clock, bpp)
@@ -1148,13 +1153,17 @@ static void ironlake_edp_panel_off(struc
 
 	DRM_DEBUG_KMS("Turn eDP power off\n");
 
-	WARN(intel_dp->want_panel_vdd, "Cannot turn power off while VDD is on\n");
+	WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n");
 
 	pp = ironlake_get_pp_control(dev_priv);
+	/* We need to switch off panel power _and_ force vdd, for otherwise some
+	 * panels get very unhappy and cease to work. */
 	pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE);
 	I915_WRITE(PCH_PP_CONTROL, pp);
 	POSTING_READ(PCH_PP_CONTROL);
 
+	intel_dp->want_panel_vdd = false;
+
 	ironlake_wait_panel_off(intel_dp);
 }
 
@@ -1259,18 +1268,14 @@ static void intel_dp_prepare(struct drm_
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
-	ironlake_edp_backlight_off(intel_dp);
-	ironlake_edp_panel_off(intel_dp);
 
-	/* Wake up the sink first */
+	/* Make sure the panel is off before trying to change the mode. But also
+	 * ensure that we have vdd while we switch off the panel. */
 	ironlake_edp_panel_vdd_on(intel_dp);
+	ironlake_edp_backlight_off(intel_dp);
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+	ironlake_edp_panel_off(intel_dp);
 	intel_dp_link_down(intel_dp);
-	ironlake_edp_panel_vdd_off(intel_dp, false);
-
-	/* Make sure the panel is off before trying to
-	 * change the mode
-	 */
 }
 
 static void intel_dp_commit(struct drm_encoder *encoder)
@@ -1302,13 +1307,12 @@ intel_dp_dpms(struct drm_encoder *encode
 	uint32_t dp_reg = I915_READ(intel_dp->output_reg);
 
 	if (mode != DRM_MODE_DPMS_ON) {
-		ironlake_edp_backlight_off(intel_dp);
-		ironlake_edp_panel_off(intel_dp);
-
+		/* Switching the panel off requires vdd. */
 		ironlake_edp_panel_vdd_on(intel_dp);
+		ironlake_edp_backlight_off(intel_dp);
 		intel_dp_sink_dpms(intel_dp, mode);
+		ironlake_edp_panel_off(intel_dp);
 		intel_dp_link_down(intel_dp);
-		ironlake_edp_panel_vdd_off(intel_dp, false);
 
 		if (is_cpu_edp(intel_dp))
 			ironlake_edp_pll_off(encoder);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_drv.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_drv.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_drv.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_drv.h	2013-07-13 14:03:57.000000000 -0400
@@ -247,12 +247,12 @@ struct dip_infoframe {
 			uint16_t bottom_bar_start;
 			uint16_t left_bar_end;
 			uint16_t right_bar_start;
-		} avi;
+		} __attribute__ ((packed)) avi;
 		struct {
 			uint8_t vn[8];
 			uint8_t pd[16];
 			uint8_t sdi;
-		} spd;
+		} __attribute__ ((packed)) spd;
 		uint8_t payload[27];
 	} __attribute__ ((packed)) body;
 } __attribute__((packed));
@@ -288,6 +288,8 @@ struct intel_fbc_work {
 	int interval;
 };
 
+int intel_connector_update_modes(struct drm_connector *connector,
+				struct edid *edid);
 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 extern bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus);
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_dvo.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_dvo.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_dvo.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_dvo.c	2013-07-13 14:03:57.000000000 -0400
@@ -370,6 +370,7 @@ void intel_dvo_init(struct drm_device *d
 		const struct intel_dvo_device *dvo = &intel_dvo_devices[i];
 		struct i2c_adapter *i2c;
 		int gpio;
+		bool dvoinit;
 
 		/* Allow the I2C driver info to specify the GPIO to be used in
 		 * special cases, but otherwise default to what's defined
@@ -389,7 +390,17 @@ void intel_dvo_init(struct drm_device *d
 		i2c = &dev_priv->gmbus[gpio].adapter;
 
 		intel_dvo->dev = *dvo;
-		if (!dvo->dev_ops->init(&intel_dvo->dev, i2c))
+
+		/* GMBUS NAK handling seems to be unstable, hence let the
+		 * transmitter detection run in bit banging mode for now.
+		 */
+		intel_gmbus_force_bit(i2c, true);
+
+		dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c);
+
+		intel_gmbus_force_bit(i2c, false);
+
+		if (!dvoinit)
 			continue;
 
 		intel_encoder->type = INTEL_OUTPUT_DVO;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_hdmi.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_hdmi.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_hdmi.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_hdmi.c	2013-07-13 14:03:57.000000000 -0400
@@ -138,14 +138,17 @@ static void i9xx_write_infoframe(struct
 
 	I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags);
 
+	mmiowb();
 	for (i = 0; i < len; i += 4) {
 		I915_WRITE(VIDEO_DIP_DATA, *data);
 		data++;
 	}
+	mmiowb();
 
 	flags |= intel_infoframe_flags(frame);
 
 	I915_WRITE(VIDEO_DIP_CTL, VIDEO_DIP_ENABLE | val | port | flags);
+	POSTING_READ(VIDEO_DIP_CTL);
 }
 
 static void ironlake_write_infoframe(struct drm_encoder *encoder,
@@ -168,14 +171,17 @@ static void ironlake_write_infoframe(str
 
 	I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
 
+	mmiowb();
 	for (i = 0; i < len; i += 4) {
 		I915_WRITE(TVIDEO_DIP_DATA(intel_crtc->pipe), *data);
 		data++;
 	}
+	mmiowb();
 
 	flags |= intel_infoframe_flags(frame);
 
 	I915_WRITE(reg, VIDEO_DIP_ENABLE | val | flags);
+	POSTING_READ(reg);
 }
 static void intel_set_infoframe(struct drm_encoder *encoder,
 				struct dip_infoframe *frame)
@@ -271,7 +277,7 @@ static void intel_hdmi_dpms(struct drm_e
 	u32 temp;
 	u32 enable_bits = SDVO_ENABLE;
 
-	if (intel_hdmi->has_audio)
+	if (intel_hdmi->has_audio || mode != DRM_MODE_DPMS_ON)
 		enable_bits |= SDVO_AUDIO_ENABLE;
 
 	temp = I915_READ(intel_hdmi->sdvox_reg);
@@ -549,10 +555,13 @@ void intel_hdmi_init(struct drm_device *
 	if (!HAS_PCH_SPLIT(dev)) {
 		intel_hdmi->write_infoframe = i9xx_write_infoframe;
 		I915_WRITE(VIDEO_DIP_CTL, 0);
+		POSTING_READ(VIDEO_DIP_CTL);
 	} else {
 		intel_hdmi->write_infoframe = ironlake_write_infoframe;
-		for_each_pipe(i)
+		for_each_pipe(i) {
 			I915_WRITE(TVIDEO_DIP_CTL(i), 0);
+			POSTING_READ(TVIDEO_DIP_CTL(i));
+		}
 	}
 
 	drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_lvds.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_lvds.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_lvds.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_lvds.c	2013-07-13 14:03:57.000000000 -0400
@@ -747,6 +747,14 @@ static const struct dmi_system_id intel_
 	},
 	{
 		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Hewlett-Packard HP t5740",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, " t5740"),
+		},
+	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
 		.ident = "Hewlett-Packard t5745",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
@@ -769,6 +777,30 @@ static const struct dmi_system_id intel_
 			DMI_MATCH(DMI_BOARD_NAME, "MS-7469"),
 		},
 	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Gigabyte GA-D525TUD",
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
+			DMI_MATCH(DMI_BOARD_NAME, "D525TUD"),
+		},
+	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Supermicro X7SPA-H",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Supermicro"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "X7SPA-H"),
+		},
+	},
+	{
+		.callback = intel_no_lvds_dmi_callback,
+		.ident = "Fujitsu Esprimo Q900",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Q900"),
+		},
+	},
 
 	{ }	/* terminating entry */
 };
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_modes.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_modes.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_modes.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_modes.c	2013-07-13 14:03:57.000000000 -0400
@@ -60,6 +60,25 @@ bool intel_ddc_probe(struct intel_encode
 }
 
 /**
+ * intel_connector_update_modes - update connector from edid
+ * @connector: DRM connector device to use
+ * @edid: previously read EDID information
+ */
+int intel_connector_update_modes(struct drm_connector *connector,
+				struct edid *edid)
+{
+	int ret;
+
+	drm_mode_connector_update_edid_property(connector, edid);
+	ret = drm_add_edid_modes(connector, edid);
+	drm_edid_to_eld(connector, edid);
+	connector->display_info.raw_edid = NULL;
+	kfree(edid);
+
+	return ret;
+}
+
+/**
  * intel_ddc_get_modes - get modelist from monitor
  * @connector: DRM connector device to use
  * @adapter: i2c adapter
@@ -70,18 +89,12 @@ int intel_ddc_get_modes(struct drm_conne
 			struct i2c_adapter *adapter)
 {
 	struct edid *edid;
-	int ret = 0;
 
 	edid = drm_get_edid(connector, adapter);
-	if (edid) {
-		drm_mode_connector_update_edid_property(connector, edid);
-		ret = drm_add_edid_modes(connector, edid);
-		drm_edid_to_eld(connector, edid);
-		connector->display_info.raw_edid = NULL;
-		kfree(edid);
-	}
+	if (!edid)
+		return 0;
 
-	return ret;
+	return intel_connector_update_modes(connector, edid);
 }
 
 static const struct drm_prop_enum_list force_audio_names[] = {
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_opregion.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_opregion.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_opregion.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_opregion.c	2013-07-13 14:03:57.000000000 -0400
@@ -419,6 +419,25 @@ blind_set:
 	goto end;
 }
 
+static void intel_setup_cadls(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_opregion *opregion = &dev_priv->opregion;
+	int i = 0;
+	u32 disp_id;
+
+	/* Initialize the CADL field by duplicating the DIDL values.
+	 * Technically, this is not always correct as display outputs may exist,
+	 * but not active. This initialization is necessary for some Clevo
+	 * laptops that check this field before processing the brightness and
+	 * display switching hotkeys. Just like DIDL, CADL is NULL-terminated if
+	 * there are less than eight devices. */
+	do {
+		disp_id = ioread32(&opregion->acpi->didl[i]);
+		iowrite32(disp_id, &opregion->acpi->cadl[i]);
+	} while (++i < 8 && disp_id != 0);
+}
+
 void intel_opregion_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -428,8 +447,10 @@ void intel_opregion_init(struct drm_devi
 		return;
 
 	if (opregion->acpi) {
-		if (drm_core_check_feature(dev, DRIVER_MODESET))
+		if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 			intel_didl_outputs(dev);
+			intel_setup_cadls(dev);
+		}
 
 		/* Notify BIOS we are ready to handle ACPI video ext notifs.
 		 * Right now, all the events are handled by the ACPI video module.
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_overlay.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_overlay.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_overlay.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_overlay.c	2013-07-13 14:03:57.000000000 -0400
@@ -427,9 +427,17 @@ static int intel_overlay_off(struct inte
 	OUT_RING(flip_addr);
 	OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
 	/* turn overlay off */
-	OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
-	OUT_RING(flip_addr);
-	OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+	if (IS_I830(dev)) {
+		/* Workaround: Don't disable the overlay fully, since otherwise
+		 * it dies on the next OVERLAY_ON cmd. */
+		OUT_RING(MI_NOOP);
+		OUT_RING(MI_NOOP);
+		OUT_RING(MI_NOOP);
+	} else {
+		OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF);
+		OUT_RING(flip_addr);
+		OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP);
+	}
 	ADVANCE_LP_RING();
 
 	return intel_overlay_do_wait_request(overlay, request,
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_ringbuffer.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_ringbuffer.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_ringbuffer.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_ringbuffer.c	2013-07-13 14:03:57.000000000 -0400
@@ -249,10 +249,15 @@ u32 intel_ring_get_active_head(struct in
 
 static int init_ring_common(struct intel_ring_buffer *ring)
 {
-	drm_i915_private_t *dev_priv = ring->dev->dev_private;
+	struct drm_device *dev = ring->dev;
+	drm_i915_private_t *dev_priv = dev->dev_private;
 	struct drm_i915_gem_object *obj = ring->obj;
+	int ret = 0;
 	u32 head;
 
+	if (HAS_FORCE_WAKE(dev))
+		gen6_gt_force_wake_get(dev_priv);
+
 	/* Stop the ring if it's running. */
 	I915_WRITE_CTL(ring, 0);
 	I915_WRITE_HEAD(ring, 0);
@@ -290,9 +295,9 @@ static int init_ring_common(struct intel
 			| RING_VALID);
 
 	/* If the head is still not zero, the ring is dead */
-	if ((I915_READ_CTL(ring) & RING_VALID) == 0 ||
-	    I915_READ_START(ring) != obj->gtt_offset ||
-	    (I915_READ_HEAD(ring) & HEAD_ADDR) != 0) {
+	if (wait_for((I915_READ_CTL(ring) & RING_VALID) != 0 &&
+		     I915_READ_START(ring) == obj->gtt_offset &&
+		     (I915_READ_HEAD(ring) & HEAD_ADDR) == 0, 50)) {
 		DRM_ERROR("%s initialization failed "
 				"ctl %08x head %08x tail %08x start %08x\n",
 				ring->name,
@@ -300,7 +305,8 @@ static int init_ring_common(struct intel
 				I915_READ_HEAD(ring),
 				I915_READ_TAIL(ring),
 				I915_READ_START(ring));
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
 	if (!drm_core_check_feature(ring->dev, DRIVER_MODESET))
@@ -309,9 +315,14 @@ static int init_ring_common(struct intel
 		ring->head = I915_READ_HEAD(ring);
 		ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
 		ring->space = ring_space(ring);
+		ring->last_retired_head = -1;
 	}
 
-	return 0;
+out:
+	if (HAS_FORCE_WAKE(dev))
+		gen6_gt_force_wake_put(dev_priv);
+
+	return ret;
 }
 
 static int
@@ -1026,6 +1037,10 @@ int intel_init_ring_buffer(struct drm_de
 	if (ret)
 		goto err_unref;
 
+	ret = i915_gem_object_set_to_gtt_domain(obj, true);
+	if (ret)
+		goto err_unpin;
+
 	ring->map.size = ring->size;
 	ring->map.offset = dev->agp->base + obj->gtt_offset;
 	ring->map.type = 0;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_sdvo.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_sdvo.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_sdvo.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_sdvo.c	2013-07-13 14:03:57.000000000 -0400
@@ -769,10 +769,12 @@ static void intel_sdvo_get_dtd_from_mode
 		((v_sync_len & 0x30) >> 4);
 
 	dtd->part2.dtd_flags = 0x18;
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		dtd->part2.dtd_flags |= DTD_FLAG_INTERLACE;
 	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
-		dtd->part2.dtd_flags |= 0x2;
+		dtd->part2.dtd_flags |= DTD_FLAG_HSYNC_POSITIVE;
 	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
-		dtd->part2.dtd_flags |= 0x4;
+		dtd->part2.dtd_flags |= DTD_FLAG_VSYNC_POSITIVE;
 
 	dtd->part2.sdvo_flags = 0;
 	dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
@@ -806,9 +808,11 @@ static void intel_sdvo_get_mode_from_dtd
 	mode->clock = dtd->part1.clock * 10;
 
 	mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
-	if (dtd->part2.dtd_flags & 0x2)
+	if (dtd->part2.dtd_flags & DTD_FLAG_INTERLACE)
+		mode->flags |= DRM_MODE_FLAG_INTERLACE;
+	if (dtd->part2.dtd_flags & DTD_FLAG_HSYNC_POSITIVE)
 		mode->flags |= DRM_MODE_FLAG_PHSYNC;
-	if (dtd->part2.dtd_flags & 0x4)
+	if (dtd->part2.dtd_flags & DTD_FLAG_VSYNC_POSITIVE)
 		mode->flags |= DRM_MODE_FLAG_PVSYNC;
 }
 
@@ -864,31 +868,38 @@ static void intel_sdvo_dump_hdmi_buf(str
 }
 #endif
 
-static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
+static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
+				       unsigned if_index, uint8_t tx_rate,
+				       uint8_t *data, unsigned length)
 {
-	struct dip_infoframe avi_if = {
-		.type = DIP_TYPE_AVI,
-		.ver = DIP_VERSION_AVI,
-		.len = DIP_LEN_AVI,
-	};
-	uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
-	uint8_t set_buf_index[2] = { 1, 0 };
-	uint64_t *data = (uint64_t *)&avi_if;
-	unsigned i;
-
-	intel_dip_infoframe_csum(&avi_if);
+	uint8_t set_buf_index[2] = { if_index, 0 };
+	uint8_t hbuf_size, tmp[8];
+	int i;
 
 	if (!intel_sdvo_set_value(intel_sdvo,
 				  SDVO_CMD_SET_HBUF_INDEX,
 				  set_buf_index, 2))
 		return false;
 
-	for (i = 0; i < sizeof(avi_if); i += 8) {
+	if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_HBUF_INFO,
+				  &hbuf_size, 1))
+		return false;
+
+	/* Buffer size is 0 based, hooray! */
+	hbuf_size++;
+
+	DRM_DEBUG_KMS("writing sdvo hbuf: %i, hbuf_size %i, hbuf_size: %i\n",
+		      if_index, length, hbuf_size);
+
+	for (i = 0; i < hbuf_size; i += 8) {
+		memset(tmp, 0, 8);
+		if (i < length)
+			memcpy(tmp, data + i, min_t(unsigned, 8, length - i));
+
 		if (!intel_sdvo_set_value(intel_sdvo,
 					  SDVO_CMD_SET_HBUF_DATA,
-					  data, 8))
+					  tmp, 8))
 			return false;
-		data++;
 	}
 
 	return intel_sdvo_set_value(intel_sdvo,
@@ -896,6 +907,28 @@ static bool intel_sdvo_set_avi_infoframe
 				    &tx_rate, 1);
 }
 
+static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo)
+{
+	struct dip_infoframe avi_if = {
+		.type = DIP_TYPE_AVI,
+		.ver = DIP_VERSION_AVI,
+		.len = DIP_LEN_AVI,
+	};
+	uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)];
+
+	intel_dip_infoframe_csum(&avi_if);
+
+	/* sdvo spec says that the ecc is handled by the hw, and it looks like
+	 * we must not send the ecc field, either. */
+	memcpy(sdvo_data, &avi_if, 3);
+	sdvo_data[3] = avi_if.checksum;
+	memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi));
+
+	return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
+					  SDVO_HBUF_TX_VSYNC,
+					  sdvo_data, sizeof(sdvo_data));
+}
+
 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 {
 	struct intel_sdvo_tv_format format;
@@ -1548,11 +1581,14 @@ static void intel_sdvo_get_lvds_modes(st
 	 * Assume that the preferred modes are
 	 * arranged in priority order.
 	 */
-	intel_ddc_get_modes(connector, intel_sdvo->i2c);
-	if (list_empty(&connector->probed_modes) == false)
-		goto end;
+	intel_ddc_get_modes(connector, &intel_sdvo->ddc);
 
-	/* Fetch modes from VBT */
+	/*
+	 * Fetch modes from VBT. For SDVO prefer the VBT mode since some
+	 * SDVO->LVDS transcoders can't cope with the EDID mode. Since
+	 * drm_mode_probed_add adds the mode at the head of the list we add it
+	 * last.
+	 */
 	if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
 		newmode = drm_mode_duplicate(connector->dev,
 					     dev_priv->sdvo_lvds_vbt_mode);
@@ -1564,7 +1600,6 @@ static void intel_sdvo_get_lvds_modes(st
 		}
 	}
 
-end:
 	list_for_each_entry(newmode, &connector->probed_modes, head) {
 		if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
 			intel_sdvo->sdvo_lvds_fixed_mode =
@@ -2495,6 +2530,7 @@ bool intel_sdvo_init(struct drm_device *
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_encoder *intel_encoder;
 	struct intel_sdvo *intel_sdvo;
+	u32 hotplug_mask;
 	int i;
 
 	intel_sdvo = kzalloc(sizeof(struct intel_sdvo), GFP_KERNEL);
@@ -2525,10 +2561,17 @@ bool intel_sdvo_init(struct drm_device *
 		}
 	}
 
-	if (IS_SDVOB(sdvo_reg))
-		dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
-	else
-		dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
+	hotplug_mask = 0;
+	if (IS_G4X(dev)) {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_G4X : SDVOC_HOTPLUG_INT_STATUS_G4X;
+	} else if (IS_GEN4(dev)) {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_I965 : SDVOC_HOTPLUG_INT_STATUS_I965;
+	} else {
+		hotplug_mask = IS_SDVOB(sdvo_reg) ?
+			SDVOB_HOTPLUG_INT_STATUS_I915 : SDVOC_HOTPLUG_INT_STATUS_I915;
+	}
 
 	drm_encoder_helper_add(&intel_encoder->base, &intel_sdvo_helper_funcs);
 
@@ -2536,14 +2579,6 @@ bool intel_sdvo_init(struct drm_device *
 	if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))
 		goto err;
 
-	/* Set up hotplug command - note paranoia about contents of reply.
-	 * We assume that the hardware is in a sane state, and only touch
-	 * the bits we think we understand.
-	 */
-	intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG,
-			     &intel_sdvo->hotplug_active, 2);
-	intel_sdvo->hotplug_active[0] &= ~0x3;
-
 	if (intel_sdvo_output_setup(intel_sdvo,
 				    intel_sdvo->caps.output_flags) != true) {
 		DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
@@ -2551,6 +2586,12 @@ bool intel_sdvo_init(struct drm_device *
 		goto err;
 	}
 
+	/* Only enable the hotplug irq if we need it, to work around noisy
+	 * hotplug lines.
+	 */
+	if (intel_sdvo->hotplug_active[0])
+		dev_priv->hotplug_supported_mask |= hotplug_mask;
+
 	intel_sdvo_select_ddc_bus(dev_priv, intel_sdvo, sdvo_reg);
 
 	/* Set the input timing to the screen. Assume always input 0. */
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_sdvo_regs.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_sdvo_regs.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_sdvo_regs.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_sdvo_regs.h	2013-07-13 14:03:57.000000000 -0400
@@ -61,6 +61,11 @@ struct intel_sdvo_caps {
 	u16 output_flags;
 } __attribute__((packed));
 
+/* Note: SDVO detailed timing flags match EDID misc flags. */
+#define DTD_FLAG_HSYNC_POSITIVE (1 << 1)
+#define DTD_FLAG_VSYNC_POSITIVE (1 << 2)
+#define DTD_FLAG_INTERLACE	(1 << 7)
+
 /** This matches the EDID DTD structure, more or less */
 struct intel_sdvo_dtd {
 	struct {
@@ -703,6 +708,8 @@ struct intel_sdvo_enhancements_arg {
 #define SDVO_CMD_SET_AUDIO_STAT		0x91
 #define SDVO_CMD_GET_AUDIO_STAT		0x92
 #define SDVO_CMD_SET_HBUF_INDEX		0x93
+  #define SDVO_HBUF_INDEX_ELD		0
+  #define SDVO_HBUF_INDEX_AVI_IF	1
 #define SDVO_CMD_GET_HBUF_INDEX		0x94
 #define SDVO_CMD_GET_HBUF_INFO		0x95
 #define SDVO_CMD_SET_HBUF_AV_SPLIT	0x96
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_tv.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_tv.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/i915/intel_tv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/i915/intel_tv.c	2013-07-13 14:03:57.000000000 -0400
@@ -674,6 +674,54 @@ static const struct tv_mode tv_modes[] =
 		.filter_table = filter_table,
 	},
 	{
+		.name       = "480p",
+		.clock		= 107520,
+		.refresh	= 59940,
+		.oversample     = TV_OVERSAMPLE_4X,
+		.component_only = 1,
+
+		.hsync_end      = 64,               .hblank_end         = 122,
+		.hblank_start   = 842,              .htotal             = 857,
+
+		.progressive    = true,		    .trilevel_sync = false,
+
+		.vsync_start_f1 = 12,               .vsync_start_f2     = 12,
+		.vsync_len      = 12,
+
+		.veq_ena        = false,
+
+		.vi_end_f1      = 44,               .vi_end_f2          = 44,
+		.nbr_end        = 479,
+
+		.burst_ena      = false,
+
+		.filter_table = filter_table,
+	},
+	{
+		.name       = "576p",
+		.clock		= 107520,
+		.refresh	= 50000,
+		.oversample     = TV_OVERSAMPLE_4X,
+		.component_only = 1,
+
+		.hsync_end      = 64,               .hblank_end         = 139,
+		.hblank_start   = 859,              .htotal             = 863,
+
+		.progressive    = true,		    .trilevel_sync = false,
+
+		.vsync_start_f1 = 10,               .vsync_start_f2     = 10,
+		.vsync_len      = 10,
+
+		.veq_ena        = false,
+
+		.vi_end_f1      = 48,               .vi_end_f2          = 48,
+		.nbr_end        = 575,
+
+		.burst_ena      = false,
+
+		.filter_table = filter_table,
+	},
+	{
 		.name       = "720p@60Hz",
 		.clock		= 148800,
 		.refresh	= 60000,
@@ -1185,6 +1233,11 @@ intel_tv_detect_type(struct intel_tv *in
 
 	I915_WRITE(TV_DAC, save_tv_dac & ~TVDAC_STATE_CHG_EN);
 	I915_WRITE(TV_CTL, save_tv_ctl);
+	POSTING_READ(TV_CTL);
+
+	/* For unknown reasons the hw barfs if we don't do this vblank wait. */
+	intel_wait_for_vblank(intel_tv->base.base.dev,
+			      to_intel_crtc(intel_tv->base.base.crtc)->pipe);
 
 	/* Restore interrupt config */
 	if (connector->polled & DRM_CONNECTOR_POLL_HPD) {
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_bo.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_bo.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_bo.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_bo.c	2013-07-13 14:03:57.000000000 -0400
@@ -1030,7 +1030,7 @@ nouveau_ttm_fault_reserve_notify(struct
 
 	nvbo->placement.fpfn = 0;
 	nvbo->placement.lpfn = dev_priv->fb_mappable_pages;
-	nouveau_bo_placement_set(nvbo, TTM_PL_VRAM, 0);
+	nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
 	return nouveau_bo_validate(nvbo, false, true, false);
 }
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_connector.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_connector.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_connector.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_connector.c	2013-07-13 14:03:57.000000000 -0400
@@ -654,7 +654,13 @@ nouveau_connector_detect_depth(struct dr
 	if (nv_connector->edid && connector->display_info.bpc)
 		return;
 
-	/* if not, we're out of options unless we're LVDS, default to 8bpc */
+	/* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
+	if (nv_connector->type == DCB_CONNECTOR_eDP) {
+		connector->display_info.bpc = 6;
+		return;
+	}
+
+	/* we're out of options unless we're LVDS, default to 8bpc */
 	if (nv_encoder->dcb->type != OUTPUT_LVDS) {
 		connector->display_info.bpc = 8;
 		return;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_display.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_display.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_display.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_display.c	2013-07-13 14:03:57.000000000 -0400
@@ -586,7 +586,7 @@ nouveau_display_dumb_create(struct drm_f
 	args->size = args->pitch * args->height;
 	args->size = roundup(args->size, PAGE_SIZE);
 
-	ret = nouveau_gem_new(dev, args->size, 0, TTM_PL_FLAG_VRAM, 0, 0, &bo);
+	ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
 	if (ret)
 		return ret;
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_drv.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_drv.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_drv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_drv.c	2013-07-13 14:03:57.000000000 -0400
@@ -186,11 +186,13 @@ nouveau_pci_suspend(struct pci_dev *pdev
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	NV_INFO(dev, "Disabling display...\n");
-	nouveau_display_fini(dev);
+	if (dev->mode_config.num_crtc) {
+		NV_INFO(dev, "Disabling display...\n");
+		nouveau_display_fini(dev);
 
-	NV_INFO(dev, "Disabling fbcon...\n");
-	nouveau_fbcon_set_suspend(dev, 1);
+		NV_INFO(dev, "Disabling fbcon...\n");
+		nouveau_fbcon_set_suspend(dev, 1);
+	}
 
 	NV_INFO(dev, "Unpinning framebuffer(s)...\n");
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -363,10 +365,12 @@ nouveau_pci_resume(struct pci_dev *pdev)
 			NV_ERROR(dev, "Could not pin/map cursor.\n");
 	}
 
-	nouveau_fbcon_set_suspend(dev, 0);
-	nouveau_fbcon_zfill_all(dev);
+	if (dev->mode_config.num_crtc) {
+		nouveau_fbcon_set_suspend(dev, 0);
+		nouveau_fbcon_zfill_all(dev);
 
-	nouveau_display_init(dev);
+		nouveau_display_init(dev);
+	}
 
 	/* Force CLUT to get re-loaded during modeset */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -468,9 +472,7 @@ static int __init nouveau_init(void)
 #ifdef CONFIG_VGA_CONSOLE
 		if (vgacon_text_force())
 			nouveau_modeset = 0;
-		else
 #endif
-			nouveau_modeset = 1;
 	}
 
 	if (!nouveau_modeset)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_fbcon.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_fbcon.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_fbcon.c	2013-07-13 14:03:57.000000000 -0400
@@ -497,7 +497,7 @@ int nouveau_fbcon_init(struct drm_device
 	nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
 
 	ret = drm_fb_helper_init(dev, &nfbdev->helper,
-				 nv_two_heads(dev) ? 2 : 1, 4);
+				 dev->mode_config.num_crtc, 4);
 	if (ret) {
 		kfree(nfbdev);
 		return ret;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_state.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_state.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nouveau_state.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nouveau_state.c	2013-07-13 14:03:57.000000000 -0400
@@ -47,6 +47,7 @@ static int nouveau_init_engine_ptrs(stru
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_engine *engine = &dev_priv->engine;
+	u32 pclass = dev->pdev->class >> 8;
 
 	switch (dev_priv->chipset & 0xf0) {
 	case 0x00:
@@ -526,7 +527,8 @@ static int nouveau_init_engine_ptrs(stru
 	}
 
 	/* headless mode */
-	if (nouveau_modeset == 2) {
+	if (nouveau_modeset == 2 ||
+	    (nouveau_modeset < 0 && pclass != PCI_CLASS_DISPLAY_VGA)) {
 		engine->display.early_init = nouveau_stub_init;
 		engine->display.late_takedown = nouveau_stub_takedown;
 		engine->display.create = nouveau_stub_init;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_dac.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_dac.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_dac.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_dac.c	2013-07-13 14:03:57.000000000 -0400
@@ -210,7 +210,7 @@ out:
 	NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode);
 
 	if (blue == 0x18) {
-		NV_INFO(dev, "Load detected on head A\n");
+		NV_DEBUG(dev, "Load detected on head A\n");
 		return connector_status_connected;
 	}
 
@@ -323,7 +323,7 @@ nv17_dac_detect(struct drm_encoder *enco
 
 	if (nv17_dac_sample_load(encoder) &
 	    NV_PRAMDAC_TEST_CONTROL_SENSEB_ALLHI) {
-		NV_INFO(dev, "Load detected on output %c\n",
+		NV_DEBUG(dev, "Load detected on output %c\n",
 			'@' + ffs(dcb->or));
 		return connector_status_connected;
 	} else {
@@ -398,7 +398,7 @@ static void nv04_dac_commit(struct drm_e
 
 	helper->dpms(encoder, DRM_MODE_DPMS_ON);
 
-	NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n",
+	NV_DEBUG(dev, "Output %s is running on CRTC %d using output %c\n",
 		drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base),
 		nv_crtc->index, '@' + ffs(nv_encoder->dcb->or));
 }
@@ -447,7 +447,7 @@ static void nv04_dac_dpms(struct drm_enc
 		return;
 	nv_encoder->last_dpms = mode;
 
-	NV_INFO(dev, "Setting dpms mode %d on vga encoder (output %d)\n",
+	NV_DEBUG(dev, "Setting dpms mode %d on vga encoder (output %d)\n",
 		     mode, nv_encoder->dcb->index);
 
 	nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_dfp.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_dfp.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_dfp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_dfp.c	2013-07-13 14:03:57.000000000 -0400
@@ -476,7 +476,7 @@ static void nv04_dfp_commit(struct drm_e
 
 	helper->dpms(encoder, DRM_MODE_DPMS_ON);
 
-	NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n",
+	NV_DEBUG(dev, "Output %s is running on CRTC %d using output %c\n",
 		drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base),
 		nv_crtc->index, '@' + ffs(nv_encoder->dcb->or));
 }
@@ -504,7 +504,7 @@ static void nv04_dfp_update_backlight(st
 
 static inline bool is_powersaving_dpms(int mode)
 {
-	return (mode != DRM_MODE_DPMS_ON);
+	return mode != DRM_MODE_DPMS_ON && mode != NV_DPMS_CLEARED;
 }
 
 static void nv04_lvds_dpms(struct drm_encoder *encoder, int mode)
@@ -519,7 +519,7 @@ static void nv04_lvds_dpms(struct drm_en
 		return;
 	nv_encoder->last_dpms = mode;
 
-	NV_INFO(dev, "Setting dpms mode %d on lvds encoder (output %d)\n",
+	NV_DEBUG(dev, "Setting dpms mode %d on lvds encoder (output %d)\n",
 		     mode, nv_encoder->dcb->index);
 
 	if (was_powersaving && is_powersaving_dpms(mode))
@@ -564,7 +564,7 @@ static void nv04_tmds_dpms(struct drm_en
 		return;
 	nv_encoder->last_dpms = mode;
 
-	NV_INFO(dev, "Setting dpms mode %d on tmds encoder (output %d)\n",
+	NV_DEBUG(dev, "Setting dpms mode %d on tmds encoder (output %d)\n",
 		     mode, nv_encoder->dcb->index);
 
 	nv04_dfp_update_backlight(encoder, mode);
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_tv.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_tv.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nv04_tv.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nv04_tv.c	2013-07-13 14:03:57.000000000 -0400
@@ -69,7 +69,7 @@ static void nv04_tv_dpms(struct drm_enco
 	struct nv04_mode_state *state = &dev_priv->mode_reg;
 	uint8_t crtc1A;
 
-	NV_INFO(dev, "Setting dpms mode %d on TV encoder (output %d)\n",
+	NV_DEBUG(dev, "Setting dpms mode %d on TV encoder (output %d)\n",
 		mode, nv_encoder->dcb->index);
 
 	state->pllsel &= ~(PLLSEL_TV_CRTC1_MASK | PLLSEL_TV_CRTC2_MASK);
@@ -162,7 +162,7 @@ static void nv04_tv_commit(struct drm_en
 
 	helper->dpms(encoder, DRM_MODE_DPMS_ON);
 
-	NV_INFO(dev, "Output %s is running on CRTC %d using output %c\n",
+	NV_DEBUG(dev, "Output %s is running on CRTC %d using output %c\n",
 		      drm_get_connector_name(&nouveau_encoder_connector_get(nv_encoder)->base), nv_crtc->index,
 		      '@' + ffs(nv_encoder->dcb->or));
 }
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc	2013-07-13 14:03:57.000000000 -0400
@@ -119,9 +119,9 @@ dispatch_dma:
 // mthd 0x030c-0x0340, various stuff
 .b16 0xc3 14
 .b32 #ctx_src_address_high           ~0x000000ff
-.b32 #ctx_src_address_low            ~0xfffffff0
+.b32 #ctx_src_address_low            ~0xffffffff
 .b32 #ctx_dst_address_high           ~0x000000ff
-.b32 #ctx_dst_address_low            ~0xfffffff0
+.b32 #ctx_dst_address_low            ~0xffffffff
 .b32 #ctx_src_pitch                  ~0x0007ffff
 .b32 #ctx_dst_pitch                  ~0x0007ffff
 .b32 #ctx_xcnt                       ~0x0000ffff
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nva3_copy.fuc.h	2013-07-13 14:03:57.000000000 -0400
@@ -1,37 +1,72 @@
-uint32_t nva3_pcopy_data[] = {
+u32 nva3_pcopy_data[] = {
+/* 0x0000: ctx_object */
 	0x00000000,
+/* 0x0004: ctx_dma */
+/* 0x0004: ctx_dma_query */
 	0x00000000,
+/* 0x0008: ctx_dma_src */
 	0x00000000,
+/* 0x000c: ctx_dma_dst */
 	0x00000000,
+/* 0x0010: ctx_query_address_high */
 	0x00000000,
+/* 0x0014: ctx_query_address_low */
 	0x00000000,
+/* 0x0018: ctx_query_counter */
 	0x00000000,
+/* 0x001c: ctx_src_address_high */
 	0x00000000,
+/* 0x0020: ctx_src_address_low */
 	0x00000000,
+/* 0x0024: ctx_src_pitch */
 	0x00000000,
+/* 0x0028: ctx_src_tile_mode */
 	0x00000000,
+/* 0x002c: ctx_src_xsize */
 	0x00000000,
+/* 0x0030: ctx_src_ysize */
 	0x00000000,
+/* 0x0034: ctx_src_zsize */
 	0x00000000,
+/* 0x0038: ctx_src_zoff */
 	0x00000000,
+/* 0x003c: ctx_src_xoff */
 	0x00000000,
+/* 0x0040: ctx_src_yoff */
 	0x00000000,
+/* 0x0044: ctx_src_cpp */
 	0x00000000,
+/* 0x0048: ctx_dst_address_high */
 	0x00000000,
+/* 0x004c: ctx_dst_address_low */
 	0x00000000,
+/* 0x0050: ctx_dst_pitch */
 	0x00000000,
+/* 0x0054: ctx_dst_tile_mode */
 	0x00000000,
+/* 0x0058: ctx_dst_xsize */
 	0x00000000,
+/* 0x005c: ctx_dst_ysize */
 	0x00000000,
+/* 0x0060: ctx_dst_zsize */
 	0x00000000,
+/* 0x0064: ctx_dst_zoff */
 	0x00000000,
+/* 0x0068: ctx_dst_xoff */
 	0x00000000,
+/* 0x006c: ctx_dst_yoff */
 	0x00000000,
+/* 0x0070: ctx_dst_cpp */
 	0x00000000,
+/* 0x0074: ctx_format */
 	0x00000000,
+/* 0x0078: ctx_swz_const0 */
 	0x00000000,
+/* 0x007c: ctx_swz_const1 */
 	0x00000000,
+/* 0x0080: ctx_xcnt */
 	0x00000000,
+/* 0x0084: ctx_ycnt */
 	0x00000000,
 	0x00000000,
 	0x00000000,
@@ -63,6 +98,7 @@ uint32_t nva3_pcopy_data[] = {
 	0x00000000,
 	0x00000000,
 	0x00000000,
+/* 0x0100: dispatch_table */
 	0x00010000,
 	0x00000000,
 	0x00000000,
@@ -73,6 +109,7 @@ uint32_t nva3_pcopy_data[] = {
 	0x00010162,
 	0x00000000,
 	0x00030060,
+/* 0x0128: dispatch_dma */
 	0x00010170,
 	0x00000000,
 	0x00010170,
@@ -118,11 +155,11 @@ uint32_t nva3_pcopy_data[] = {
 	0x0000001c,
 	0xffffff00,
 	0x00000020,
-	0x0000000f,
+	0x00000000,
 	0x00000048,
 	0xffffff00,
 	0x0000004c,
-	0x0000000f,
+	0x00000000,
 	0x00000024,
 	0xfff80000,
 	0x00000050,
@@ -146,7 +183,8 @@ uint32_t nva3_pcopy_data[] = {
 	0x00000800,
 };
 
-uint32_t nva3_pcopy_code[] = {
+u32 nva3_pcopy_code[] = {
+/* 0x0000: main */
 	0x04fe04bd,
 	0x3517f000,
 	0xf10010fe,
@@ -158,23 +196,31 @@ uint32_t nva3_pcopy_code[] = {
 	0x17f11031,
 	0x27f01200,
 	0x0012d003,
+/* 0x002f: spin */
 	0xf40031f4,
 	0x0ef40028,
+/* 0x0035: ih */
 	0x8001cffd,
 	0xf40812c4,
 	0x21f4060b,
+/* 0x0041: ih_no_chsw */
 	0x0412c472,
 	0xf4060bf4,
+/* 0x004a: ih_no_cmd */
 	0x11c4c321,
 	0x4001d00c,
+/* 0x0052: swctx */
 	0x47f101f8,
 	0x4bfe7700,
 	0x0007fe00,
 	0xf00204b9,
 	0x01f40643,
 	0x0604fa09,
+/* 0x006b: swctx_load */
 	0xfa060ef4,
+/* 0x006e: swctx_done */
 	0x03f80504,
+/* 0x0072: chsw */
 	0x27f100f8,
 	0x23cf1400,
 	0x1e3fc800,
@@ -183,18 +229,22 @@ uint32_t nva3_pcopy_code[] = {
 	0x1e3af052,
 	0xf00023d0,
 	0x24d00147,
+/* 0x0093: chsw_no_unload */
 	0xcf00f880,
 	0x3dc84023,
 	0x220bf41e,
 	0xf40131f4,
 	0x57f05221,
 	0x0367f004,
+/* 0x00a8: chsw_load_ctx_dma */
 	0xa07856bc,
 	0xb6018068,
 	0x87d00884,
 	0x0162b600,
+/* 0x00bb: chsw_finish_load */
 	0xf0f018f4,
 	0x23d00237,
+/* 0x00c3: dispatch */
 	0xf100f880,
 	0xcf190037,
 	0x33cf4032,
@@ -202,6 +252,7 @@ uint32_t nva3_pcopy_code[] = {
 	0x1024b607,
 	0x010057f1,
 	0x74bd64bd,
+/* 0x00dc: dispatch_loop */
 	0x58005658,
 	0x50b60157,
 	0x0446b804,
@@ -211,6 +262,7 @@ uint32_t nva3_pcopy_code[] = {
 	0xb60276bb,
 	0x57bb0374,
 	0xdf0ef400,
+/* 0x0100: dispatch_valid_mthd */
 	0xb60246bb,
 	0x45bb0344,
 	0x01459800,
@@ -220,31 +272,41 @@ uint32_t nva3_pcopy_code[] = {
 	0xb0014658,
 	0x1bf40064,
 	0x00538009,
+/* 0x0127: dispatch_cmd */
 	0xf4300ef4,
 	0x55f90132,
 	0xf40c01f4,
+/* 0x0132: dispatch_invalid_bitfield */
 	0x25f0250e,
+/* 0x0135: dispatch_illegal_mthd */
 	0x0125f002,
+/* 0x0138: dispatch_error */
 	0x100047f1,
 	0xd00042d0,
 	0x27f04043,
 	0x0002d040,
+/* 0x0148: hostirq_wait */
 	0xf08002cf,
 	0x24b04024,
 	0xf71bf400,
+/* 0x0154: dispatch_done */
 	0x1d0027f1,
 	0xd00137f0,
 	0x00f80023,
+/* 0x0160: cmd_nop */
+/* 0x0162: cmd_pm_trigger */
 	0x27f100f8,
 	0x34bd2200,
 	0xd00233f0,
 	0x00f80023,
+/* 0x0170: cmd_dma */
 	0x012842b7,
 	0xf00145b6,
 	0x43801e39,
 	0x0040b701,
 	0x0644b606,
 	0xf80043d0,
+/* 0x0189: cmd_exec_set_format */
 	0xf030f400,
 	0xb00001b0,
 	0x01b00101,
@@ -256,20 +318,26 @@ uint32_t nva3_pcopy_code[] = {
 	0x70b63847,
 	0x0232f401,
 	0x94bd84bd,
+/* 0x01b4: ncomp_loop */
 	0xb60f4ac4,
 	0xb4bd0445,
+/* 0x01bc: bpc_loop */
 	0xf404a430,
 	0xa5ff0f18,
 	0x00cbbbc0,
 	0xf40231f4,
+/* 0x01ce: cmp_c0 */
 	0x1bf4220e,
 	0x10c7f00c,
 	0xf400cbbb,
+/* 0x01da: cmp_c1 */
 	0xa430160e,
 	0x0c18f406,
 	0xbb14c7f0,
 	0x0ef400cb,
+/* 0x01e9: cmp_zero */
 	0x80c7f107,
+/* 0x01ed: bpc_next */
 	0x01c83800,
 	0xb60180b6,
 	0xb5b801b0,
@@ -280,6 +348,7 @@ uint32_t nva3_pcopy_code[] = {
 	0x98110680,
 	0x68fd2008,
 	0x0502f400,
+/* 0x0216: dst_xcnt */
 	0x75fd64bd,
 	0x1c078000,
 	0xf10078fd,
@@ -304,6 +373,7 @@ uint32_t nva3_pcopy_code[] = {
 	0x980056d0,
 	0x56d01f06,
 	0x1030f440,
+/* 0x0276: cmd_exec_set_surface_tiled */
 	0x579800f8,
 	0x6879c70a,
 	0xb66478c7,
@@ -311,9 +381,11 @@ uint32_t nva3_pcopy_code[] = {
 	0x0e76b060,
 	0xf0091bf4,
 	0x0ef40477,
+/* 0x0291: xtile64 */
 	0x027cf00f,
 	0xfd1170b6,
 	0x77f00947,
+/* 0x029d: xtileok */
 	0x0f5a9806,
 	0xfd115b98,
 	0xb7f000ab,
@@ -371,6 +443,7 @@ uint32_t nva3_pcopy_code[] = {
 	0x67d00600,
 	0x0060b700,
 	0x0068d004,
+/* 0x0382: cmd_exec_set_surface_linear */
 	0x6cf000f8,
 	0x0260b702,
 	0x0864b602,
@@ -381,13 +454,16 @@ uint32_t nva3_pcopy_code[] = {
 	0xb70067d0,
 	0x98040060,
 	0x67d00957,
+/* 0x03ab: cmd_exec_wait */
 	0xf900f800,
 	0xf110f900,
 	0xb6080007,
+/* 0x03b6: loop */
 	0x01cf0604,
 	0x0114f000,
 	0xfcfa1bf4,
 	0xf800fc10,
+/* 0x03c5: cmd_exec_query */
 	0x0d34c800,
 	0xf5701bf4,
 	0xf103ab21,
@@ -417,6 +493,7 @@ uint32_t nva3_pcopy_code[] = {
 	0x47f10153,
 	0x44b60800,
 	0x0045d006,
+/* 0x0438: query_counter */
 	0x03ab21f5,
 	0x080c47f1,
 	0x980644b6,
@@ -439,11 +516,13 @@ uint32_t nva3_pcopy_code[] = {
 	0x47f10153,
 	0x44b60800,
 	0x0045d006,
+/* 0x0492: cmd_exec */
 	0x21f500f8,
 	0x3fc803ab,
 	0x0e0bf400,
 	0x018921f5,
 	0x020047f1,
+/* 0x04a7: cmd_exec_no_format */
 	0xf11e0ef4,
 	0xb6081067,
 	0x77f00664,
@@ -451,19 +530,24 @@ uint32_t nva3_pcopy_code[] = {
 	0x981c0780,
 	0x67d02007,
 	0x4067d000,
+/* 0x04c2: cmd_exec_init_src_surface */
 	0x32f444bd,
 	0xc854bd02,
 	0x0bf4043f,
 	0x8221f50a,
 	0x0a0ef403,
+/* 0x04d4: src_tiled */
 	0x027621f5,
+/* 0x04db: cmd_exec_init_dst_surface */
 	0xf40749f0,
 	0x57f00231,
 	0x083fc82c,
 	0xf50a0bf4,
 	0xf4038221,
+/* 0x04ee: dst_tiled */
 	0x21f50a0e,
 	0x49f00276,
+/* 0x04f5: cmd_exec_kick */
 	0x0057f108,
 	0x0654b608,
 	0xd0210698,
@@ -473,6 +557,8 @@ uint32_t nva3_pcopy_code[] = {
 	0xc80054d0,
 	0x0bf40c3f,
 	0xc521f507,
+/* 0x0519: cmd_exec_done */
+/* 0x051b: cmd_wrcache_flush */
 	0xf100f803,
 	0xbd220027,
 	0x0133f034,
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h	2013-07-13 14:03:57.000000000 -0400
@@ -1,34 +1,65 @@
-uint32_t nvc0_pcopy_data[] = {
+u32 nvc0_pcopy_data[] = {
+/* 0x0000: ctx_object */
 	0x00000000,
+/* 0x0004: ctx_query_address_high */
 	0x00000000,
+/* 0x0008: ctx_query_address_low */
 	0x00000000,
+/* 0x000c: ctx_query_counter */
 	0x00000000,
+/* 0x0010: ctx_src_address_high */
 	0x00000000,
+/* 0x0014: ctx_src_address_low */
 	0x00000000,
+/* 0x0018: ctx_src_pitch */
 	0x00000000,
+/* 0x001c: ctx_src_tile_mode */
 	0x00000000,
+/* 0x0020: ctx_src_xsize */
 	0x00000000,
+/* 0x0024: ctx_src_ysize */
 	0x00000000,
+/* 0x0028: ctx_src_zsize */
 	0x00000000,
+/* 0x002c: ctx_src_zoff */
 	0x00000000,
+/* 0x0030: ctx_src_xoff */
 	0x00000000,
+/* 0x0034: ctx_src_yoff */
 	0x00000000,
+/* 0x0038: ctx_src_cpp */
 	0x00000000,
+/* 0x003c: ctx_dst_address_high */
 	0x00000000,
+/* 0x0040: ctx_dst_address_low */
 	0x00000000,
+/* 0x0044: ctx_dst_pitch */
 	0x00000000,
+/* 0x0048: ctx_dst_tile_mode */
 	0x00000000,
+/* 0x004c: ctx_dst_xsize */
 	0x00000000,
+/* 0x0050: ctx_dst_ysize */
 	0x00000000,
+/* 0x0054: ctx_dst_zsize */
 	0x00000000,
+/* 0x0058: ctx_dst_zoff */
 	0x00000000,
+/* 0x005c: ctx_dst_xoff */
 	0x00000000,
+/* 0x0060: ctx_dst_yoff */
 	0x00000000,
+/* 0x0064: ctx_dst_cpp */
 	0x00000000,
+/* 0x0068: ctx_format */
 	0x00000000,
+/* 0x006c: ctx_swz_const0 */
 	0x00000000,
+/* 0x0070: ctx_swz_const1 */
 	0x00000000,
+/* 0x0074: ctx_xcnt */
 	0x00000000,
+/* 0x0078: ctx_ycnt */
 	0x00000000,
 	0x00000000,
 	0x00000000,
@@ -63,6 +94,7 @@ uint32_t nvc0_pcopy_data[] = {
 	0x00000000,
 	0x00000000,
 	0x00000000,
+/* 0x0100: dispatch_table */
 	0x00010000,
 	0x00000000,
 	0x00000000,
@@ -111,11 +143,11 @@ uint32_t nvc0_pcopy_data[] = {
 	0x00000010,
 	0xffffff00,
 	0x00000014,
-	0x0000000f,
+	0x00000000,
 	0x0000003c,
 	0xffffff00,
 	0x00000040,
-	0x0000000f,
+	0x00000000,
 	0x00000018,
 	0xfff80000,
 	0x00000044,
@@ -139,7 +171,8 @@ uint32_t nvc0_pcopy_data[] = {
 	0x00000800,
 };
 
-uint32_t nvc0_pcopy_code[] = {
+u32 nvc0_pcopy_code[] = {
+/* 0x0000: main */
 	0x04fe04bd,
 	0x3517f000,
 	0xf10010fe,
@@ -151,15 +184,20 @@ uint32_t nvc0_pcopy_code[] = {
 	0x17f11031,
 	0x27f01200,
 	0x0012d003,
+/* 0x002f: spin */
 	0xf40031f4,
 	0x0ef40028,
+/* 0x0035: ih */
 	0x8001cffd,
 	0xf40812c4,
 	0x21f4060b,
+/* 0x0041: ih_no_chsw */
 	0x0412c4ca,
 	0xf5070bf4,
+/* 0x004b: ih_no_cmd */
 	0xc4010221,
 	0x01d00c11,
+/* 0x0053: swctx */
 	0xf101f840,
 	0xfe770047,
 	0x47f1004b,
@@ -188,8 +226,11 @@ uint32_t nvc0_pcopy_code[] = {
 	0xf00204b9,
 	0x01f40643,
 	0x0604fa09,
+/* 0x00c3: swctx_load */
 	0xfa060ef4,
+/* 0x00c6: swctx_done */
 	0x03f80504,
+/* 0x00ca: chsw */
 	0x27f100f8,
 	0x23cf1400,
 	0x1e3fc800,
@@ -198,18 +239,22 @@ uint32_t nvc0_pcopy_code[] = {
 	0x1e3af053,
 	0xf00023d0,
 	0x24d00147,
+/* 0x00eb: chsw_no_unload */
 	0xcf00f880,
 	0x3dc84023,
 	0x090bf41e,
 	0xf40131f4,
+/* 0x00fa: chsw_finish_load */
 	0x37f05321,
 	0x8023d002,
+/* 0x0102: dispatch */
 	0x37f100f8,
 	0x32cf1900,
 	0x0033cf40,
 	0x07ff24e4,
 	0xf11024b6,
 	0xbd010057,
+/* 0x011b: dispatch_loop */
 	0x5874bd64,
 	0x57580056,
 	0x0450b601,
@@ -219,6 +264,7 @@ uint32_t nvc0_pcopy_code[] = {
 	0xbb0f08f4,
 	0x74b60276,
 	0x0057bb03,
+/* 0x013f: dispatch_valid_mthd */
 	0xbbdf0ef4,
 	0x44b60246,
 	0x0045bb03,
@@ -229,24 +275,33 @@ uint32_t nvc0_pcopy_code[] = {
 	0x64b00146,
 	0x091bf400,
 	0xf4005380,
+/* 0x0166: dispatch_cmd */
 	0x32f4300e,
 	0xf455f901,
 	0x0ef40c01,
+/* 0x0171: dispatch_invalid_bitfield */
 	0x0225f025,
+/* 0x0174: dispatch_illegal_mthd */
+/* 0x0177: dispatch_error */
 	0xf10125f0,
 	0xd0100047,
 	0x43d00042,
 	0x4027f040,
+/* 0x0187: hostirq_wait */
 	0xcf0002d0,
 	0x24f08002,
 	0x0024b040,
+/* 0x0193: dispatch_done */
 	0xf1f71bf4,
 	0xf01d0027,
 	0x23d00137,
+/* 0x019f: cmd_nop */
 	0xf800f800,
+/* 0x01a1: cmd_pm_trigger */
 	0x0027f100,
 	0xf034bd22,
 	0x23d00233,
+/* 0x01af: cmd_exec_set_format */
 	0xf400f800,
 	0x01b0f030,
 	0x0101b000,
@@ -258,20 +313,26 @@ uint32_t nvc0_pcopy_code[] = {
 	0x3847c701,
 	0xf40170b6,
 	0x84bd0232,
+/* 0x01da: ncomp_loop */
 	0x4ac494bd,
 	0x0445b60f,
+/* 0x01e2: bpc_loop */
 	0xa430b4bd,
 	0x0f18f404,
 	0xbbc0a5ff,
 	0x31f400cb,
 	0x220ef402,
+/* 0x01f4: cmp_c0 */
 	0xf00c1bf4,
 	0xcbbb10c7,
 	0x160ef400,
+/* 0x0200: cmp_c1 */
 	0xf406a430,
 	0xc7f00c18,
 	0x00cbbb14,
+/* 0x020f: cmp_zero */
 	0xf1070ef4,
+/* 0x0213: bpc_next */
 	0x380080c7,
 	0x80b601c8,
 	0x01b0b601,
@@ -283,6 +344,7 @@ uint32_t nvc0_pcopy_code[] = {
 	0x1d08980e,
 	0xf40068fd,
 	0x64bd0502,
+/* 0x023c: dst_xcnt */
 	0x800075fd,
 	0x78fd1907,
 	0x1057f100,
@@ -307,15 +369,18 @@ uint32_t nvc0_pcopy_code[] = {
 	0x1c069800,
 	0xf44056d0,
 	0x00f81030,
+/* 0x029c: cmd_exec_set_surface_tiled */
 	0xc7075798,
 	0x78c76879,
 	0x0380b664,
 	0xb06077c7,
 	0x1bf40e76,
 	0x0477f009,
+/* 0x02b7: xtile64 */
 	0xf00f0ef4,
 	0x70b6027c,
 	0x0947fd11,
+/* 0x02c3: xtileok */
 	0x980677f0,
 	0x5b980c5a,
 	0x00abfd0e,
@@ -374,6 +439,7 @@ uint32_t nvc0_pcopy_code[] = {
 	0xb70067d0,
 	0xd0040060,
 	0x00f80068,
+/* 0x03a8: cmd_exec_set_surface_linear */
 	0xb7026cf0,
 	0xb6020260,
 	0x57980864,
@@ -384,12 +450,15 @@ uint32_t nvc0_pcopy_code[] = {
 	0x0060b700,
 	0x06579804,
 	0xf80067d0,
+/* 0x03d1: cmd_exec_wait */
 	0xf900f900,
 	0x0007f110,
 	0x0604b608,
+/* 0x03dc: loop */
 	0xf00001cf,
 	0x1bf40114,
 	0xfc10fcfa,
+/* 0x03eb: cmd_exec_query */
 	0xc800f800,
 	0x1bf40d34,
 	0xd121f570,
@@ -419,6 +488,7 @@ uint32_t nvc0_pcopy_code[] = {
 	0x0153f026,
 	0x080047f1,
 	0xd00644b6,
+/* 0x045e: query_counter */
 	0x21f50045,
 	0x47f103d1,
 	0x44b6080c,
@@ -442,11 +512,13 @@ uint32_t nvc0_pcopy_code[] = {
 	0x080047f1,
 	0xd00644b6,
 	0x00f80045,
+/* 0x04b8: cmd_exec */
 	0x03d121f5,
 	0xf4003fc8,
 	0x21f50e0b,
 	0x47f101af,
 	0x0ef40200,
+/* 0x04cd: cmd_exec_no_format */
 	0x1067f11e,
 	0x0664b608,
 	0x800177f0,
@@ -454,18 +526,23 @@ uint32_t nvc0_pcopy_code[] = {
 	0x1d079819,
 	0xd00067d0,
 	0x44bd4067,
+/* 0x04e8: cmd_exec_init_src_surface */
 	0xbd0232f4,
 	0x043fc854,
 	0xf50a0bf4,
 	0xf403a821,
+/* 0x04fa: src_tiled */
 	0x21f50a0e,
 	0x49f0029c,
+/* 0x0501: cmd_exec_init_dst_surface */
 	0x0231f407,
 	0xc82c57f0,
 	0x0bf4083f,
 	0xa821f50a,
 	0x0a0ef403,
+/* 0x0514: dst_tiled */
 	0x029c21f5,
+/* 0x051b: cmd_exec_kick */
 	0xf10849f0,
 	0xb6080057,
 	0x06980654,
@@ -475,7 +552,9 @@ uint32_t nvc0_pcopy_code[] = {
 	0x54d00546,
 	0x0c3fc800,
 	0xf5070bf4,
+/* 0x053f: cmd_exec_done */
 	0xf803eb21,
+/* 0x0541: cmd_wrcache_flush */
 	0x0027f100,
 	0xf034bd22,
 	0x23d00133,
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nvd0_display.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nvd0_display.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/nouveau/nvd0_display.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/nouveau/nvd0_display.c	2013-07-13 14:03:57.000000000 -0400
@@ -790,7 +790,7 @@ nvd0_crtc_cursor_move(struct drm_crtc *c
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	int ch = EVO_CURS(nv_crtc->index);
 
-	evo_piow(crtc->dev, ch, 0x0084, (y << 16) | x);
+	evo_piow(crtc->dev, ch, 0x0084, (y << 16) | (x & 0xffff));
 	evo_piow(crtc->dev, ch, 0x0080, 0x00000000);
 	return 0;
 }
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_crtc.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_crtc.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_crtc.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_crtc.c	2013-07-13 14:03:57.000000000 -0400
@@ -258,9 +258,6 @@ void atombios_crtc_dpms(struct drm_crtc
 		radeon_crtc->enabled = true;
 		/* adjust pm to dpms changes BEFORE enabling crtcs */
 		radeon_pm_compute_clocks(rdev);
-		/* disable crtc pair power gating before programming */
-		if (ASIC_IS_DCE6(rdev))
-			atombios_powergate_crtc(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_ENABLE);
 		if (ASIC_IS_DCE3(rdev) && !ASIC_IS_DCE6(rdev))
 			atombios_enable_crtc_memreq(crtc, ATOM_ENABLE);
@@ -278,25 +275,6 @@ void atombios_crtc_dpms(struct drm_crtc
 			atombios_enable_crtc_memreq(crtc, ATOM_DISABLE);
 		atombios_enable_crtc(crtc, ATOM_DISABLE);
 		radeon_crtc->enabled = false;
-		/* power gating is per-pair */
-		if (ASIC_IS_DCE6(rdev)) {
-			struct drm_crtc *other_crtc;
-			struct radeon_crtc *other_radeon_crtc;
-			list_for_each_entry(other_crtc, &rdev->ddev->mode_config.crtc_list, head) {
-				other_radeon_crtc = to_radeon_crtc(other_crtc);
-				if (((radeon_crtc->crtc_id == 0) && (other_radeon_crtc->crtc_id == 1)) ||
-				    ((radeon_crtc->crtc_id == 1) && (other_radeon_crtc->crtc_id == 0)) ||
-				    ((radeon_crtc->crtc_id == 2) && (other_radeon_crtc->crtc_id == 3)) ||
-				    ((radeon_crtc->crtc_id == 3) && (other_radeon_crtc->crtc_id == 2)) ||
-				    ((radeon_crtc->crtc_id == 4) && (other_radeon_crtc->crtc_id == 5)) ||
-				    ((radeon_crtc->crtc_id == 5) && (other_radeon_crtc->crtc_id == 4))) {
-					/* if both crtcs in the pair are off, enable power gating */
-					if (other_radeon_crtc->enabled == false)
-						atombios_powergate_crtc(crtc, ATOM_ENABLE);
-					break;
-				}
-			}
-		}
 		/* adjust pm to dpms changes AFTER disabling crtcs */
 		radeon_pm_compute_clocks(rdev);
 		break;
@@ -444,11 +422,28 @@ union atom_enable_ss {
 static void atombios_crtc_program_ss(struct radeon_device *rdev,
 				     int enable,
 				     int pll_id,
+				     int crtc_id,
 				     struct radeon_atom_ss *ss)
 {
+	unsigned i;
 	int index = GetIndexIntoMasterTable(COMMAND, EnableSpreadSpectrumOnPPLL);
 	union atom_enable_ss args;
 
+	if (!enable) {
+		for (i = 0; i < rdev->num_crtc; i++) {
+			if (rdev->mode_info.crtcs[i] &&
+			    rdev->mode_info.crtcs[i]->enabled &&
+			    i != crtc_id &&
+			    pll_id == rdev->mode_info.crtcs[i]->pll_id) {
+				/* one other crtc is using this pll don't turn
+				 * off spread spectrum as it might turn off
+				 * display on active crtc
+				 */
+				return;
+			}
+		}
+	}
+
 	memset(&args, 0, sizeof(args));
 
 	if (ASIC_IS_DCE5(rdev)) {
@@ -1039,7 +1034,7 @@ static void atombios_crtc_set_pll(struct
 		radeon_compute_pll_legacy(pll, adjusted_clock, &pll_clock, &fb_div, &frac_fb_div,
 					  &ref_div, &post_div);
 
-	atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id, &ss);
+	atombios_crtc_program_ss(rdev, ATOM_DISABLE, radeon_crtc->pll_id, radeon_crtc->crtc_id, &ss);
 
 	atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
 				  encoder_mode, radeon_encoder->encoder_id, mode->clock,
@@ -1062,7 +1057,7 @@ static void atombios_crtc_set_pll(struct
 			ss.step = step_size;
 		}
 
-		atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id, &ss);
+		atombios_crtc_program_ss(rdev, ATOM_ENABLE, radeon_crtc->pll_id, radeon_crtc->crtc_id, &ss);
 	}
 }
 
@@ -1534,8 +1529,12 @@ static int radeon_atom_pick_pll(struct d
 				 * crtc virtual pixel clock.
 				 */
 				if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(test_encoder))) {
-					if (ASIC_IS_DCE5(rdev) || rdev->clock.dp_extclk)
+					if (rdev->clock.dp_extclk)
 						return ATOM_PPLL_INVALID;
+					else if (ASIC_IS_DCE6(rdev))
+						return ATOM_PPLL0;
+					else if (ASIC_IS_DCE5(rdev))
+						return ATOM_DCPLL;
 				}
 			}
 		}
@@ -1571,11 +1570,11 @@ void radeon_atom_disp_eng_pll_init(struc
 								   ASIC_INTERNAL_SS_ON_DCPLL,
 								   rdev->clock.default_dispclk);
 		if (ss_enabled)
-			atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, &ss);
+			atombios_crtc_program_ss(rdev, ATOM_DISABLE, ATOM_DCPLL, -1, &ss);
 		/* XXX: DCE5, make sure voltage, dispclk is high enough */
 		atombios_crtc_set_disp_eng_pll(rdev, rdev->clock.default_dispclk);
 		if (ss_enabled)
-			atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, &ss);
+			atombios_crtc_program_ss(rdev, ATOM_ENABLE, ATOM_DCPLL, -1, &ss);
 	}
 
 }
@@ -1634,18 +1633,28 @@ static bool atombios_crtc_mode_fixup(str
 static void atombios_crtc_prepare(struct drm_crtc *crtc)
 {
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+	struct drm_device *dev = crtc->dev;
+	struct radeon_device *rdev = dev->dev_private;
 
+	radeon_crtc->in_mode_set = true;
 	/* pick pll */
 	radeon_crtc->pll_id = radeon_atom_pick_pll(crtc);
 
+	/* disable crtc pair power gating before programming */
+	if (ASIC_IS_DCE6(rdev))
+		atombios_powergate_crtc(crtc, ATOM_DISABLE);
+
 	atombios_lock_crtc(crtc, ATOM_ENABLE);
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
 }
 
 static void atombios_crtc_commit(struct drm_crtc *crtc)
 {
+	struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
+
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
 	atombios_lock_crtc(crtc, ATOM_DISABLE);
+	radeon_crtc->in_mode_set = false;
 }
 
 static void atombios_crtc_disable(struct drm_crtc *crtc)
@@ -1654,8 +1663,23 @@ static void atombios_crtc_disable(struct
 	struct drm_device *dev = crtc->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_atom_ss ss;
+	int i;
 
 	atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+	if (ASIC_IS_DCE6(rdev))
+		atombios_powergate_crtc(crtc, ATOM_ENABLE);
+
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (rdev->mode_info.crtcs[i] &&
+		    rdev->mode_info.crtcs[i]->enabled &&
+		    i != radeon_crtc->crtc_id &&
+		    radeon_crtc->pll_id == rdev->mode_info.crtcs[i]->pll_id) {
+			/* one other crtc is using this pll don't turn
+			 * off the pll
+			 */
+			goto done;
+		}
+	}
 
 	switch (radeon_crtc->pll_id) {
 	case ATOM_PPLL1:
@@ -1673,6 +1697,7 @@ static void atombios_crtc_disable(struct
 	default:
 		break;
 	}
+done:
 	radeon_crtc->pll_id = -1;
 }
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_dp.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_dp.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_dp.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_dp.c	2013-07-13 14:03:57.000000000 -0400
@@ -22,6 +22,7 @@
  *
  * Authors: Dave Airlie
  *          Alex Deucher
+ *          Jerome Glisse
  */
 #include "drmP.h"
 #include "radeon_drm.h"
@@ -637,7 +638,6 @@ static bool radeon_dp_get_link_status(st
 	ret = radeon_dp_aux_native_read(radeon_connector, DP_LANE0_1_STATUS,
 					link_status, DP_LINK_STATUS_SIZE, 100);
 	if (ret <= 0) {
-		DRM_ERROR("displayport link status failed\n");
 		return false;
 	}
 
@@ -816,8 +816,10 @@ static int radeon_dp_link_train_cr(struc
 		else
 			mdelay(dp_info->rd_interval * 4);
 
-		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status))
+		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
+			DRM_ERROR("displayport link status failed\n");
 			break;
+		}
 
 		if (dp_clock_recovery_ok(dp_info->link_status, dp_info->dp_lane_count)) {
 			clock_recovery = true;
@@ -879,8 +881,10 @@ static int radeon_dp_link_train_ce(struc
 		else
 			mdelay(dp_info->rd_interval * 4);
 
-		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status))
+		if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
+			DRM_ERROR("displayport link status failed\n");
 			break;
+		}
 
 		if (dp_channel_eq_ok(dp_info->link_status, dp_info->dp_lane_count)) {
 			channel_eq = true;
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_encoders.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_encoders.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atombios_encoders.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atombios_encoders.c	2013-07-13 14:03:57.000000000 -0400
@@ -95,7 +95,7 @@ static bool radeon_atom_mode_fixup(struc
 	    ((radeon_encoder->active_device & (ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) ||
 	     (radeon_encoder_get_dp_bridge_encoder_id(encoder) != ENCODER_OBJECT_ID_NONE))) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
-		radeon_dp_set_link_config(connector, mode);
+		radeon_dp_set_link_config(connector, adjusted_mode);
 	}
 
 	return true;
@@ -396,6 +396,8 @@ atombios_digital_setup(struct drm_encode
 int
 atombios_get_encoder_mode(struct drm_encoder *encoder)
 {
+	struct drm_device *dev = encoder->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_connector *connector;
 	struct radeon_connector *radeon_connector;
@@ -421,7 +423,8 @@ atombios_get_encoder_mode(struct drm_enc
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else if (radeon_connector->use_digital)
 			return ATOM_ENCODER_MODE_DVI;
@@ -432,7 +435,8 @@ atombios_get_encoder_mode(struct drm_enc
 	case DRM_MODE_CONNECTOR_HDMIA:
 	default:
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
@@ -446,7 +450,8 @@ atombios_get_encoder_mode(struct drm_enc
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 			return ATOM_ENCODER_MODE_DP;
 		else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-			 radeon_audio)
+			 radeon_audio &&
+			 !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
@@ -1379,6 +1384,8 @@ radeon_atom_encoder_dpms_dig(struct drm_
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+	struct drm_encoder *ext_encoder = radeon_get_external_encoder(encoder);
+	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 	struct radeon_connector *radeon_connector = NULL;
 	struct radeon_connector_atom_dig *radeon_dig_connector = NULL;
@@ -1390,12 +1397,38 @@ radeon_atom_encoder_dpms_dig(struct drm_
 
 	switch (mode) {
 	case DRM_MODE_DPMS_ON:
-		/* some early dce3.2 boards have a bug in their transmitter control table */
-		if ((rdev->family == CHIP_RV710) || (rdev->family == CHIP_RV730) ||
-		    ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev))
+		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
+			if (!connector)
+				dig->panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
+			else
+				dig->panel_mode = radeon_dp_get_panel_mode(encoder, connector);
+
+			/* setup and enable the encoder */
+			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
+			atombios_dig_encoder_setup(encoder,
+						   ATOM_ENCODER_CMD_SETUP_PANEL_MODE,
+						   dig->panel_mode);
+			if (ext_encoder) {
+				if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
+					atombios_external_encoder_setup(encoder, ext_encoder,
+									EXTERNAL_ENCODER_ACTION_V3_ENCODER_SETUP);
+			}
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
+		} else if (ASIC_IS_DCE4(rdev)) {
+			/* setup and enable the encoder */
+			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
+			/* enable the transmitter */
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		else
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
+		} else {
+			/* setup and enable the encoder and transmitter */
+			atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
+			/* some early dce3.2 boards have a bug in their transmitter control table */
+			if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730))
+				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
+		}
 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
 			if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
 				atombios_set_edp_panel_power(connector,
@@ -1412,10 +1445,19 @@ radeon_atom_encoder_dpms_dig(struct drm_
 	case DRM_MODE_DPMS_STANDBY:
 	case DRM_MODE_DPMS_SUSPEND:
 	case DRM_MODE_DPMS_OFF:
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev))
+		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
+			/* disable the transmitter */
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-		else
+		} else if (ASIC_IS_DCE4(rdev)) {
+			/* disable the transmitter */
 			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE_OUTPUT, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
+		} else {
+			/* disable the encoder and transmitter */
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE_OUTPUT, 0, 0);
+			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
+			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
+		}
 		if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
 			if (ASIC_IS_DCE4(rdev))
 				atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0);
@@ -1732,13 +1774,34 @@ static int radeon_atom_pick_dig_encoder(
 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_encoder *test_encoder;
-	struct radeon_encoder_atom_dig *dig;
+	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 	uint32_t dig_enc_in_use = 0;
 
-	/* DCE4/5 */
-	if (ASIC_IS_DCE4(rdev)) {
-		dig = radeon_encoder->enc_priv;
-		if (ASIC_IS_DCE41(rdev)) {
+	if (ASIC_IS_DCE6(rdev)) {
+		/* DCE6 */
+		switch (radeon_encoder->encoder_id) {
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+			if (dig->linkb)
+				return 1;
+			else
+				return 0;
+			break;
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+			if (dig->linkb)
+				return 3;
+			else
+				return 2;
+			break;
+		case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+			if (dig->linkb)
+				return 5;
+			else
+				return 4;
+			break;
+		}
+	} else if (ASIC_IS_DCE4(rdev)) {
+		/* DCE4/5 */
+		if (ASIC_IS_DCE41(rdev) && !ASIC_IS_DCE61(rdev)) {
 			/* ontario follows DCE4 */
 			if (rdev->family == CHIP_PALM) {
 				if (dig->linkb)
@@ -1840,10 +1903,12 @@ radeon_atom_encoder_mode_set(struct drm_
 	struct drm_device *dev = encoder->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct drm_encoder *ext_encoder = radeon_get_external_encoder(encoder);
 
 	radeon_encoder->pixel_clock = adjusted_mode->clock;
 
+	/* need to call this here rather than in prepare() since we need some crtc info */
+	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
 	if (ASIC_IS_AVIVO(rdev) && !ASIC_IS_DCE4(rdev)) {
 		if (radeon_encoder->active_device & (ATOM_DEVICE_CV_SUPPORT | ATOM_DEVICE_TV_SUPPORT))
 			atombios_yuv_setup(encoder, true);
@@ -1862,38 +1927,7 @@ radeon_atom_encoder_mode_set(struct drm_
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
-			struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
-			struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
-
-			if (!connector)
-				dig->panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE;
-			else
-				dig->panel_mode = radeon_dp_get_panel_mode(encoder, connector);
-
-			/* setup and enable the encoder */
-			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
-			atombios_dig_encoder_setup(encoder,
-						   ATOM_ENCODER_CMD_SETUP_PANEL_MODE,
-						   dig->panel_mode);
-		} else if (ASIC_IS_DCE4(rdev)) {
-			/* disable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			/* setup and enable the encoder */
-			atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP, 0);
-
-			/* enable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		} else {
-			/* disable the encoder and transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
-
-			/* setup and enable the encoder and transmitter */
-			atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0);
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
-		}
+		/* handled in dpms */
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
@@ -1914,14 +1948,6 @@ radeon_atom_encoder_mode_set(struct drm_
 		break;
 	}
 
-	if (ext_encoder) {
-		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
-			atombios_external_encoder_setup(encoder, ext_encoder,
-							EXTERNAL_ENCODER_ACTION_V3_ENCODER_SETUP);
-		else
-			atombios_external_encoder_setup(encoder, ext_encoder, ATOM_ENABLE);
-	}
-
 	atombios_apply_encoder_quirks(encoder, adjusted_mode);
 
 	if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_HDMI) {
@@ -2094,7 +2120,6 @@ static void radeon_atom_encoder_prepare(
 	}
 
 	radeon_atom_output_lock(encoder, true);
-	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
 
 	if (connector) {
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
@@ -2115,6 +2140,7 @@ static void radeon_atom_encoder_prepare(
 
 static void radeon_atom_encoder_commit(struct drm_encoder *encoder)
 {
+	/* need to call this here as we need the crtc set up */
 	radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
 	radeon_atom_output_lock(encoder, false);
 }
@@ -2155,14 +2181,7 @@ static void radeon_atom_encoder_disable(
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
 	case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
-		if (ASIC_IS_DCE4(rdev))
-			/* disable the transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-		else {
-			/* disable the encoder and transmitter */
-			atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_DISABLE, 0, 0);
-			atombios_dig_encoder_setup(encoder, ATOM_DISABLE, 0);
-		}
+		/* handled in dpms */
 		break;
 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
 	case ENCODER_OBJECT_ID_INTERNAL_DVO1:
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atom.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atom.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/atom.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/atom.c	2013-07-13 14:03:57.000000000 -0400
@@ -1389,10 +1389,10 @@ int atom_allocate_fb_scratch(struct atom
 		firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
 
 		DRM_DEBUG("atom firmware requested %08x %dkb\n",
-			  firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
-			  firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
+			  le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
+			  le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
 
-		usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
+		usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
 	}
 	ctx->scratch_size_bytes = 0;
 	if (usage_bytes == 0)
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/evergreen.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/evergreen.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/evergreen.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/evergreen.c	2013-07-13 14:03:57.000000000 -0400
@@ -37,6 +37,16 @@
 #define EVERGREEN_PFP_UCODE_SIZE 1120
 #define EVERGREEN_PM4_UCODE_SIZE 1376
 
+static const u32 crtc_offsets[6] =
+{
+	EVERGREEN_CRTC0_REGISTER_OFFSET,
+	EVERGREEN_CRTC1_REGISTER_OFFSET,
+	EVERGREEN_CRTC2_REGISTER_OFFSET,
+	EVERGREEN_CRTC3_REGISTER_OFFSET,
+	EVERGREEN_CRTC4_REGISTER_OFFSET,
+	EVERGREEN_CRTC5_REGISTER_OFFSET
+};
+
 static void evergreen_gpu_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
 void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
@@ -101,17 +111,19 @@ void evergreen_fix_pci_max_read_req_size
 
 void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc)
 {
-	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
 	int i;
 
-	if (RREG32(EVERGREEN_CRTC_CONTROL + radeon_crtc->crtc_offset) & EVERGREEN_CRTC_MASTER_EN) {
+	if (crtc >= rdev->num_crtc)
+		return;
+
+	if (RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[crtc]) & EVERGREEN_CRTC_MASTER_EN) {
 		for (i = 0; i < rdev->usec_timeout; i++) {
-			if (!(RREG32(EVERGREEN_CRTC_STATUS + radeon_crtc->crtc_offset) & EVERGREEN_CRTC_V_BLANK))
+			if (!(RREG32(EVERGREEN_CRTC_STATUS + crtc_offsets[crtc]) & EVERGREEN_CRTC_V_BLANK))
 				break;
 			udelay(1);
 		}
 		for (i = 0; i < rdev->usec_timeout; i++) {
-			if (RREG32(EVERGREEN_CRTC_STATUS + radeon_crtc->crtc_offset) & EVERGREEN_CRTC_V_BLANK)
+			if (RREG32(EVERGREEN_CRTC_STATUS + crtc_offsets[crtc]) & EVERGREEN_CRTC_V_BLANK)
 				break;
 			udelay(1);
 		}
@@ -433,6 +445,16 @@ void evergreen_hpd_init(struct radeon_de
 
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
+
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
+		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
+			/* don't try to enable hpd on eDP or LVDS avoid breaking the
+			 * aux dp channel on imac and help (but not completely fix)
+			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
+			 * also avoid interrupt storms during dpms.
+			 */
+			continue;
+		}
 		switch (radeon_connector->hpd.hpd) {
 		case RADEON_HPD_1:
 			WREG32(DC_HPD1_CONTROL, tmp);
@@ -1029,6 +1051,11 @@ int evergreen_pcie_gart_enable(struct ra
 		WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
 		WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
 		WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
+		if ((rdev->family == CHIP_JUNIPER) ||
+		    (rdev->family == CHIP_CYPRESS) ||
+		    (rdev->family == CHIP_HEMLOCK) ||
+		    (rdev->family == CHIP_BARTS))
+			WREG32(MC_VM_MD_L1_TLB3_CNTL, tmp);
 	}
 	WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
 	WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
@@ -1112,175 +1139,168 @@ void evergreen_agp_enable(struct radeon_
 
 void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 {
-	save->vga_control[0] = RREG32(D1VGA_CONTROL);
-	save->vga_control[1] = RREG32(D2VGA_CONTROL);
+	u32 crtc_enabled, tmp, frame_count, blackout;
+	int i, j;
+
 	save->vga_render_control = RREG32(VGA_RENDER_CONTROL);
 	save->vga_hdp_control = RREG32(VGA_HDP_CONTROL);
-	save->crtc_control[0] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET);
-	save->crtc_control[1] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
-	if (rdev->num_crtc >= 4) {
-		save->vga_control[2] = RREG32(EVERGREEN_D3VGA_CONTROL);
-		save->vga_control[3] = RREG32(EVERGREEN_D4VGA_CONTROL);
-		save->crtc_control[2] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET);
-		save->crtc_control[3] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
-	}
-	if (rdev->num_crtc >= 6) {
-		save->vga_control[4] = RREG32(EVERGREEN_D5VGA_CONTROL);
-		save->vga_control[5] = RREG32(EVERGREEN_D6VGA_CONTROL);
-		save->crtc_control[4] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET);
-		save->crtc_control[5] = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
-	}
 
-	/* Stop all video */
+	/* disable VGA render */
 	WREG32(VGA_RENDER_CONTROL, 0);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
-	}
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
-	}
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
+	/* blank the display controllers */
+	for (i = 0; i < rdev->num_crtc; i++) {
+		crtc_enabled = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]) & EVERGREEN_CRTC_MASTER_EN;
+		if (crtc_enabled) {
+			save->crtc_enabled[i] = true;
+			if (ASIC_IS_DCE6(rdev)) {
+				tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]);
+				if (!(tmp & EVERGREEN_CRTC_BLANK_DATA_EN)) {
+					radeon_wait_for_vblank(rdev, i);
+					WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
+					tmp |= EVERGREEN_CRTC_BLANK_DATA_EN;
+					WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
+				}
+			} else {
+				tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
+				if (!(tmp & EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE)) {
+					radeon_wait_for_vblank(rdev, i);
+					WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
+					tmp |= EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
+					WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp);
+					WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
+				}
+			}
+			/* wait for the next frame */
+			frame_count = radeon_get_vblank_counter(rdev, i);
+			for (j = 0; j < rdev->usec_timeout; j++) {
+				if (radeon_get_vblank_counter(rdev, i) != frame_count)
+					break;
+				udelay(1);
+			}
+
+			/* XXX this is a hack to avoid strange behavior with EFI on certain systems */
+			WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
+			tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
+			tmp &= ~EVERGREEN_CRTC_MASTER_EN;
+			WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp);
+			WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
+			save->crtc_enabled[i] = false;
+			/* ***** */
+		} else {
+			save->crtc_enabled[i] = false;
+		}
 	}
 
-	WREG32(D1VGA_CONTROL, 0);
-	WREG32(D2VGA_CONTROL, 0);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_D3VGA_CONTROL, 0);
-		WREG32(EVERGREEN_D4VGA_CONTROL, 0);
+	radeon_mc_wait_for_idle(rdev);
+
+	blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
+	if ((blackout & BLACKOUT_MODE_MASK) != 1) {
+		/* Block CPU access */
+		WREG32(BIF_FB_EN, 0);
+		/* blackout the MC */
+		blackout &= ~BLACKOUT_MODE_MASK;
+		WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1);
 	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_D5VGA_CONTROL, 0);
-		WREG32(EVERGREEN_D6VGA_CONTROL, 0);
+	/* wait for the MC to settle */
+	udelay(100);
+
+	/* lock double buffered regs */
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (save->crtc_enabled[i]) {
+			tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);
+			if (!(tmp & EVERGREEN_GRPH_UPDATE_LOCK)) {
+				tmp |= EVERGREEN_GRPH_UPDATE_LOCK;
+				WREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i], tmp);
+			}
+			tmp = RREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i]);
+			if (!(tmp & 1)) {
+				tmp |= 1;
+				WREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
+			}
+		}
 	}
 }
 
 void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
 {
-	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
-	       upper_32_bits(rdev->mc.vram_start));
-	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC0_REGISTER_OFFSET,
-	       upper_32_bits(rdev->mc.vram_start));
-	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
-	       (u32)rdev->mc.vram_start);
-	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC0_REGISTER_OFFSET,
-	       (u32)rdev->mc.vram_start);
-
-	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
-	       upper_32_bits(rdev->mc.vram_start));
-	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC1_REGISTER_OFFSET,
-	       upper_32_bits(rdev->mc.vram_start));
-	WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
-	       (u32)rdev->mc.vram_start);
-	WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC1_REGISTER_OFFSET,
-	       (u32)rdev->mc.vram_start);
-
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC2_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC2_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
+	u32 tmp, frame_count;
+	int i, j;
 
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
+	/* update crtc base addresses */
+	for (i = 0; i < rdev->num_crtc; i++) {
+		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
 		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC3_REGISTER_OFFSET,
+		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + crtc_offsets[i],
 		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
+		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
 		       (u32)rdev->mc.vram_start);
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC3_REGISTER_OFFSET,
+		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
 		       (u32)rdev->mc.vram_start);
 	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC4_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC4_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
+	WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
+	WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
 
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS_HIGH + EVERGREEN_CRTC5_REGISTER_OFFSET,
-		       upper_32_bits(rdev->mc.vram_start));
-		WREG32(EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
-		WREG32(EVERGREEN_GRPH_SECONDARY_SURFACE_ADDRESS + EVERGREEN_CRTC5_REGISTER_OFFSET,
-		       (u32)rdev->mc.vram_start);
+	/* unlock regs and wait for update */
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (save->crtc_enabled[i]) {
+			tmp = RREG32(EVERGREEN_MASTER_UPDATE_MODE + crtc_offsets[i]);
+			if ((tmp & 0x3) != 0) {
+				tmp &= ~0x3;
+				WREG32(EVERGREEN_MASTER_UPDATE_MODE + crtc_offsets[i], tmp);
+			}
+			tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);
+			if (tmp & EVERGREEN_GRPH_UPDATE_LOCK) {
+				tmp &= ~EVERGREEN_GRPH_UPDATE_LOCK;
+				WREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i], tmp);
+			}
+			tmp = RREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i]);
+			if (tmp & 1) {
+				tmp &= ~1;
+				WREG32(EVERGREEN_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
+			}
+			for (j = 0; j < rdev->usec_timeout; j++) {
+				tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);
+				if ((tmp & EVERGREEN_GRPH_SURFACE_UPDATE_PENDING) == 0)
+					break;
+				udelay(1);
+			}
+		}
 	}
 
-	WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS_HIGH, upper_32_bits(rdev->mc.vram_start));
-	WREG32(EVERGREEN_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
-	/* Unlock host access */
+	/* unblackout the MC */
+	tmp = RREG32(MC_SHARED_BLACKOUT_CNTL);
+	tmp &= ~BLACKOUT_MODE_MASK;
+	WREG32(MC_SHARED_BLACKOUT_CNTL, tmp);
+	/* allow CPU access */
+	WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN);
+
+	for (i = 0; i < rdev->num_crtc; i++) {
+		if (save->crtc_enabled) {
+			if (ASIC_IS_DCE6(rdev)) {
+				tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]);
+				tmp |= EVERGREEN_CRTC_BLANK_DATA_EN;
+				WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
+				WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
+				WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
+			} else {
+				tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
+				tmp &= ~EVERGREEN_CRTC_DISP_READ_REQUEST_DISABLE;
+				WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
+				WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp);
+				WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
+			}
+			/* wait for the next frame */
+			frame_count = radeon_get_vblank_counter(rdev, i);
+			for (j = 0; j < rdev->usec_timeout; j++) {
+				if (radeon_get_vblank_counter(rdev, i) != frame_count)
+					break;
+				udelay(1);
+			}
+		}
+	}
+	/* Unlock vga access */
 	WREG32(VGA_HDP_CONTROL, save->vga_hdp_control);
 	mdelay(1);
-	/* Restore video state */
-	WREG32(D1VGA_CONTROL, save->vga_control[0]);
-	WREG32(D2VGA_CONTROL, save->vga_control[1]);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_D3VGA_CONTROL, save->vga_control[2]);
-		WREG32(EVERGREEN_D4VGA_CONTROL, save->vga_control[3]);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_D5VGA_CONTROL, save->vga_control[4]);
-		WREG32(EVERGREEN_D6VGA_CONTROL, save->vga_control[5]);
-	}
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 1);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 1);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 1);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 1);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 1);
-	}
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, save->crtc_control[0]);
-	WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, save->crtc_control[1]);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, save->crtc_control[2]);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, save->crtc_control[3]);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, save->crtc_control[4]);
-		WREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, save->crtc_control[5]);
-	}
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
-	WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
-	if (rdev->num_crtc >= 4) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
-	}
-	if (rdev->num_crtc >= 6) {
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
-		WREG32(EVERGREEN_CRTC_UPDATE_LOCK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
-	}
 	WREG32(VGA_RENDER_CONTROL, save->vga_render_control);
 }
 
@@ -2136,9 +2156,20 @@ static void evergreen_gpu_init(struct ra
 	/* num banks is 8 on all fusion asics. 0 = 4, 1 = 8, 2 = 16 */
 	if (rdev->flags & RADEON_IS_IGP)
 		rdev->config.evergreen.tile_config |= 1 << 4;
-	else
-		rdev->config.evergreen.tile_config |=
-			((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
+	else {
+		switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
+		case 0: /* four banks */
+			rdev->config.evergreen.tile_config |= 0 << 4;
+			break;
+		case 1: /* eight banks */
+			rdev->config.evergreen.tile_config |= 1 << 4;
+			break;
+		case 2: /* sixteen banks */
+		default:
+			rdev->config.evergreen.tile_config |= 2 << 4;
+			break;
+		}
+	}
 	rdev->config.evergreen.tile_config |=
 		((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT) << 8;
 	rdev->config.evergreen.tile_config |=
@@ -2170,9 +2201,9 @@ static void evergreen_gpu_init(struct ra
 		WREG32(CC_SYS_RB_BACKEND_DISABLE, rb);
 		WREG32(GC_USER_RB_BACKEND_DISABLE, rb);
 		WREG32(CC_GC_SHADER_PIPE_CONFIG, sp);
-        }
+	}
 
-	grbm_gfx_index |= SE_BROADCAST_WRITES;
+	grbm_gfx_index = INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES;
 	WREG32(GRBM_GFX_INDEX, grbm_gfx_index);
 	WREG32(RLC_GFX_INDEX, grbm_gfx_index);
 
@@ -2202,6 +2233,9 @@ static void evergreen_gpu_init(struct ra
 	smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.evergreen.sx_num_of_sets);
 	WREG32(SMX_DC_CTL0, smx_dc_ctl0);
 
+	if (rdev->family <= CHIP_SUMO2)
+		WREG32(SMX_SAR_CTL0, 0x00010000);
+
 	WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_size / 4) - 1) |
 					POSITION_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_pos_size / 4) - 1) |
 					SMX_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_smx_size / 4) - 1)));
@@ -2409,8 +2443,8 @@ int evergreen_mc_init(struct radeon_devi
 		rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
 	} else {
 		/* size in MB on evergreen/cayman/tn */
-		rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
-		rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
+		rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+		rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 	}
 	rdev->mc.visible_vram_size = rdev->mc.aper_size;
 	r700_vram_gtt_location(rdev, &rdev->mc);
@@ -3224,6 +3258,12 @@ static int evergreen_startup(struct rade
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3375,10 +3415,6 @@ int evergreen_init(struct radeon_device
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff -druNp linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/evergreen_cs.c linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/evergreen_cs.c
--- linux-libre-3.4-gnu1/drivers/gpu/drm/radeon/evergreen_cs.c	2012-05-20 18:29:13.000000000 -0400
+++ linux-libre-3.4.53-gnu1/drivers/gpu/drm/radeon/evergreen_cs.c	2013-07-13 14:03:57.000000000 -0400
@@ -52,6 +52,7 @@ struct evergreen_cs_track {
 	u32			cb_color_view[12];
 	u32			cb_color_pitch[12];
 	u32			cb_color_slice[12];
+	u32			cb_color_slice_idx[12];
 	u32			cb_color_attrib[12];
 	u32			cb_color_cmask_slice[8];/* unused */
 	u32			cb_color_fmask_slice[8];/* unused */
@@ -127,12 +128,14 @@ static void evergreen_cs_track_init(stru
 		track->cb_color_info[i] = 0;
 		track->cb_color_view[i] = 0xFFFFFFFF;
 		track->cb_color_pitch[i] = 0;
-		track->cb_color_slice[i] = 0;
+		track->cb_color_slice[i] = 0xfffffff;
+		track->cb_color_slice_idx[i] = 0;
 	}
 	track->cb_target_mask = 0xFFFFFFFF;
 	track->cb_shader_mask = 0xFFFFFFFF;
 	track->cb_dirty = true;
 
+	track->db_depth_slice = 0xffffffff;
 	track->db_depth_view = 0xFFFFC000;
 	track->db_depth_size = 0xFFFFFFFF;
 	track->db_depth_control = 0xFFFFFFFF;
@@ -250,10 +253,9 @@ static int evergreen_surface_check_2d(st
 {
 	struct evergreen_cs_track *track = p->track;
 	unsigned palign, halign, tileb, slice_pt;
+	unsigned mtile_pr, mtile_ps, mtileb;
 
 	tileb = 64 * surf->bpe * surf->nsamples;
-	palign = track->group_size / (8 * surf->bpe * surf->nsamples);
-	palign = MAX(8, palign);
 	slice_pt = 1;
 	if (tileb > surf->