Merge branch 'x86/debug' into x86/irq

We merge this branch because x86/debug touches code that we started
cleaning up in x86/irq. The two branches started out independent,
but as unexpected amount of activity went into x86/irq, they became
dependent. Resolve that by this cross-merge.

51 files changed, 282 insertions, 212 deletions

diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index 56dcb0a2d244..77295666c34b 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -101,7 +101,7 @@ extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
 extern unsigned long _ramstart, _ramend, _rambase;
 extern unsigned long memory_start, memory_end, physical_mem_end;
 extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
-	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[],
+	_ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
 	_stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[],
 	_ebss_l2[], _l2_lma_start[];
 
diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index ede748d67efd..d7d9148e433c 100644
--- a/arch/blackfin/include/asm/dma-mapping.h
+++ b/arch/blackfin/include/asm/dma-mapping.h
@@ -15,7 +15,11 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
 #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
 
-#define dma_mapping_error
+static inline
+int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return 0;
+}
 
 /*
  * Map a single buffer of the indicated size for DMA in streaming mode.
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 6e08f425bb44..5c0800adb4dd 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -218,7 +218,7 @@ inline int check_gpio(unsigned gpio)
 	if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
 	    || gpio == GPIO_PH14 || gpio == GPIO_PH15
 	    || gpio == GPIO_PJ14 || gpio == GPIO_PJ15
-	    || gpio > MAX_BLACKFIN_GPIOS)
+	    || gpio >= MAX_BLACKFIN_GPIOS)
 		return -EINVAL;
 	return 0;
 }
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 512f8c92ead5..2debc900e246 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -188,10 +188,11 @@ static struct cplb_desc cplb_data[] = {
 
 static u16 __init lock_kernel_check(u32 start, u32 end)
 {
-	if ((end   <= (u32) _end && end   >= (u32)_stext) ||
-	    (start <= (u32) _end && start >= (u32)_stext))
-		return IN_KERNEL;
-	return 0;
+	if (start >= (u32)_end || end <= (u32)_stext)
+		return 0;
+
+	/* This cplb block overlapped with kernel area. */
+	return IN_KERNEL;
 }
 
 static unsigned short __init
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 77800dd83e57..0c3ea118b657 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -351,10 +351,15 @@ int _access_ok(unsigned long addr, unsigned long size)
 		return 1;
 #endif
 #if L1_DATA_B_LENGTH != 0
-	if (addr >= L1_DATA_B_START
+	if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1)
 	    && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH)
 		return 1;
 #endif
+#if L2_LENGTH != 0
+	if (addr >= L2_START + (_ebss_l2 - _stext_l2)
+	    && addr + size <= L2_START + L2_LENGTH)
+		return 1;
+#endif
 	return 0;
 }
 EXPORT_SYMBOL(_access_ok);
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 7f35d1046cd8..71a9a8c53cea 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -119,23 +119,23 @@ void __init bfin_relocate_l1_mem(void)
 	/* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */
 	dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length);
 
-	l1_data_a_length = _ebss_l1 - _sdata_l1;
+	l1_data_a_length = _sbss_l1 - _sdata_l1;
 	if (l1_data_a_length > L1_DATA_A_LENGTH)
 		panic("L1 Data SRAM Bank A Overflow\n");
 
-	/* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */
+	/* Copy _sdata_l1 to _sbss_l1 to L1 data bank A SRAM */
 	dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length);
 
-	l1_data_b_length = _ebss_b_l1 - _sdata_b_l1;
+	l1_data_b_length = _sbss_b_l1 - _sdata_b_l1;
 	if (l1_data_b_length > L1_DATA_B_LENGTH)
 		panic("L1 Data SRAM Bank B Overflow\n");
 
-	/* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */
+	/* Copy _sdata_b_l1 to _sbss_b_l1 to L1 data bank B SRAM */
 	dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length +
 			l1_data_a_length, l1_data_b_length);
 
 	if (L2_LENGTH != 0) {
-		l2_length = _ebss_l2 - _stext_l2;
+		l2_length = _sbss_l2 - _stext_l2;
 		if (l2_length > L2_LENGTH)
 			panic("L2 SRAM Overflow\n");
 
@@ -827,7 +827,7 @@ void __init setup_arch(char **cmdline_p)
 				printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n",
 				       bfin_compiled_revid(), bfin_revid());
 		}
-		if (bfin_revid() <= CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
+		if (bfin_revid() < CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX)
 			printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n",
 			       CPU, bfin_revid());
 	}
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 1aa2c788e228..bef025b07443 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -59,7 +59,7 @@
 #endif
 
 
-#ifdef CONFIG_VERBOSE_DEBUG
+#ifdef CONFIG_DEBUG_VERBOSE
 #define verbose_printk(fmt, arg...) \
 	printk(fmt, ##arg)
 #else
@@ -147,9 +147,12 @@ static void decode_address(char *buf, unsigned long address)
 				char *name = p->comm;
 				struct file *file = vma->vm_file;
 
-				if (file)
-					name = d_path(&file->f_path, _tmpbuf,
+				if (file) {
+					char *d_name = d_path(&file->f_path, _tmpbuf,
 						      sizeof(_tmpbuf));
+					if (!IS_ERR(d_name))
+						name = d_name;
+				}
 
 				/* FLAT does not have its text aligned to the start of
 				 * the map while FDPIC ELF does ...
@@ -571,7 +574,7 @@ asmlinkage void trap_c(struct pt_regs *fp)
 #endif
 			panic("Kernel exception");
 		} else {
-#ifdef CONFIG_VERBOSE_DEBUG
+#ifdef CONFIG_DEBUG_VERBOSE
 			unsigned long *stack;
 			/* Dump the user space stack */
 			stack = (unsigned long *)rdusp();
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index db532181fbde..a028e9450419 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -25,9 +25,13 @@
  */
 .macro do_flush flushins:req optflushins optnopins label
 
+	R2 = -L1_CACHE_BYTES;
+
+	/* start = (start & -L1_CACHE_BYTES) */
+	R0 = R0 & R2;
+
 	/* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */
 	R1 += -1;
-	R2 = -L1_CACHE_BYTES;
 	R1 = R1 & R2;
 	R1 += L1_CACHE_BYTES;
 
@@ -63,7 +67,7 @@ ENDPROC(_blackfin_icache_flush_range)
 
 /* Flush all cache lines assocoiated with this area of memory. */
 ENTRY(_blackfin_icache_dcache_flush_range)
-	do_flush IFLUSH, FLUSH
+	do_flush FLUSH, IFLUSH
 ENDPROC(_blackfin_icache_dcache_flush_range)
 
 /* Throw away all D-cached data in specified region without any obligation to
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index c22c47b60127..dda5443b37ed 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -72,13 +72,13 @@ unsigned int __bfin_cycles_mod;
 
 /**************************************************************************/
 
-static unsigned int bfin_getfreq(unsigned int cpu)
+static unsigned int bfin_getfreq_khz(unsigned int cpu)
 {
 	/* The driver only support single cpu */
 	if (cpu != 0)
 		return -1;
 
-	return get_cclk();
+	return get_cclk() / 1000;
 }
 
 
@@ -96,7 +96,7 @@ static int bfin_target(struct cpufreq_policy *policy,
 
 	cclk_hz = bfin_freq_table[index].frequency;
 
-	freqs.old = bfin_getfreq(0);
+	freqs.old = bfin_getfreq_khz(0);
 	freqs.new = cclk_hz;
 	freqs.cpu = 0;
 
@@ -137,8 +137,8 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
 	if (policy->cpu != 0)
 		return -EINVAL;
 
-	cclk = get_cclk();
-	sclk = get_sclk();
+	cclk = get_cclk() / 1000;
+	sclk = get_sclk() / 1000;
 
 #if ANOMALY_05000273 || (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE))
 	min_cclk = sclk * 2;
@@ -152,7 +152,7 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
 		dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */
 		dpm_state_table[index].tscale =  (TIME_SCALE / (1 << csel)) - 1;
 
-		pr_debug("cpufreq: freq:%d csel:%d tscale:%d\n",
+		pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n",
 						 bfin_freq_table[index].frequency,
 						 dpm_state_table[index].csel,
 						 dpm_state_table[index].tscale);
@@ -173,7 +173,7 @@ static struct freq_attr *bfin_freq_attr[] = {
 static struct cpufreq_driver bfin_driver = {
 	.verify = bfin_verify_speed,
 	.target = bfin_target,
-	.get = bfin_getfreq,
+	.get = bfin_getfreq_khz,
 	.init = __bfin_cpu_init,
 	.name = "bfin cpufreq",
 	.owner = THIS_MODULE,
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index c13fa8da28c7..bde6dc4e2614 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -277,7 +277,7 @@ ENTRY(_bfin_return_from_exception)
 	p5.h = hi(ILAT);
 	r6 = [p5];
 	r7 = 0x20;		/* Did I just cause anther HW error? */
-	r7 = r7 & r1;
+	r6 = r7 & r6;
 	CC = R7 == R6;
 	if CC JUMP _double_fault;
 #endif
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index 0f1ca6930c16..cc6f336e7313 100644
--- a/arch/blackfin/mm/sram-alloc.c
+++ b/arch/blackfin/mm/sram-alloc.c
@@ -183,10 +183,10 @@ static void __init l2_sram_init(void)
 		return;
 	}
 
-	free_l2_sram_head.next->paddr = (void *)L2_START +
-		(_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
-	free_l2_sram_head.next->size = L2_LENGTH -
-		(_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2);
+	free_l2_sram_head.next->paddr =
+		(void *)L2_START + (_ebss_l2 - _stext_l2);
+	free_l2_sram_head.next->size =
+		L2_LENGTH - (_ebss_l2 - _stext_l2);
 	free_l2_sram_head.next->pid = 0;
 	free_l2_sram_head.next->next = NULL;
 
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index 47d686dba1eb..a3e44a5ed497 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -226,7 +226,7 @@ extern long ia64_cmpxchg_called_with_bad_pointer (void);
 /************************************************/
 #define ia64_ssm			IA64_INTRINSIC_MACRO(ssm)
 #define ia64_rsm			IA64_INTRINSIC_MACRO(rsm)
-#define ia64_getreg			IA64_INTRINSIC_API(getreg)
+#define ia64_getreg			IA64_INTRINSIC_MACRO(getreg)
 #define ia64_setreg			IA64_INTRINSIC_API(setreg)
 #define ia64_set_rr			IA64_INTRINSIC_API(set_rr)
 #define ia64_get_rr			IA64_INTRINSIC_API(get_rr)
diff --git a/arch/ia64/include/asm/paravirt_privop.h b/arch/ia64/include/asm/paravirt_privop.h
index d577aac11835..0b597424fcfc 100644
--- a/arch/ia64/include/asm/paravirt_privop.h
+++ b/arch/ia64/include/asm/paravirt_privop.h
@@ -78,6 +78,19 @@ extern unsigned long ia64_native_getreg_func(int regnum);
 			ia64_native_rsm(mask);	\
 	} while (0)
 
+/* returned ip value should be the one in the caller,
+ * not in __paravirt_getreg() */
+#define paravirt_getreg(reg)					\
+	({							\
+		unsigned long res;				\
+		BUILD_BUG_ON(!__builtin_constant_p(reg));	\
+		if ((reg) == _IA64_REG_IP)			\
+			res = ia64_native_getreg(_IA64_REG_IP); \
+		else						\
+			res = pv_cpu_ops.getreg(reg);		\
+		res;						\
+	})
+
 /******************************************************************************
  * replacement of hand written assembly codes.
  */
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 7ef0c594f5ed..d435f4a7a96c 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -499,6 +499,7 @@ GLOBAL_ENTRY(prefetch_stack)
 END(prefetch_stack)
 
 GLOBAL_ENTRY(kernel_execve)
+	rum psr.ac
 	mov r15=__NR_execve			// put syscall number in place
 	break __BREAK_SYSCALL
 	br.ret.sptk.many rp
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 66e491d8baac..59301c472800 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -260,7 +260,7 @@ start_ap:
 	 * Switch into virtual mode:
 	 */
 	movl r16=(IA64_PSR_IT|IA64_PSR_IC|IA64_PSR_DT|IA64_PSR_RT|IA64_PSR_DFH|IA64_PSR_BN \
-		  |IA64_PSR_DI)
+		  |IA64_PSR_DI|IA64_PSR_AC)
 	;;
 	mov cr.ipsr=r16
 	movl r17=1f
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 7dd96c127177..bab1de2d2f6a 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1139,7 +1139,7 @@ ia64_mca_modify_original_stack(struct pt_regs *regs,
 	return previous_current;
 
 no_mod:
-	printk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
+	mprintk(KERN_INFO "cpu %d, %s %s, original stack not modified\n",
 			smp_processor_id(), type, msg);
 	return previous_current;
 }
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index de35d8e8b7d2..9f14c16f6369 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -130,7 +130,7 @@ ia64_native_getreg_func(int regnum)
 	unsigned long res = -1;
 	switch (regnum) {
 	CASE_GET_REG(GP);
-	CASE_GET_REG(IP);
+	/*CASE_GET_REG(IP);*/ /* returned ip value shouldn't be constant */
 	CASE_GET_REG(PSR);
 	CASE_GET_REG(TP);
 	CASE_GET_REG(SP);
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index dbdb778efa05..2a92f637431d 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -19,7 +19,6 @@
 #include <linux/kernel.h>
 
 #include <asm/page.h>
-#include <asm/iommu.h>
 
 dma_addr_t bad_dma_address __read_mostly;
 EXPORT_SYMBOL(bad_dma_address);
diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S
index d4ff0b9e79f1..45e02bb64a92 100644
--- a/arch/ia64/xen/hypercall.S
+++ b/arch/ia64/xen/hypercall.S
@@ -58,7 +58,7 @@ __HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR)
 __HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR)
 
 #ifdef CONFIG_IA32_SUPPORT
-__HCALL1(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
+__HCALL0(xen_get_eflag, HYPERPRIVOP_GET_EFLAG)
 __HCALL1(xen_set_eflag, HYPERPRIVOP_SET_EFLAG)	// refer SDM vol1 3.1.8
 #endif /* CONFIG_IA32_SUPPORT */
 
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index c8e554eafce3..b5cf6457305a 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -84,5 +84,7 @@ extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned
 extern unsigned get_434_reg(unsigned reg_offs);
 extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask);
 extern unsigned char get_latch_u5(void);
+extern void rb532_gpio_set_ilevel(int bit, unsigned gpio);
+extern void rb532_gpio_set_istat(int bit, unsigned gpio);
 
 #endif /* _RC32434_GPIO_H_ */
diff --git a/arch/mips/include/asm/mach-rc32434/rb.h b/arch/mips/include/asm/mach-rc32434/rb.h
index 79e8ef67d0d3..f25a84916703 100644
--- a/arch/mips/include/asm/mach-rc32434/rb.h
+++ b/arch/mips/include/asm/mach-rc32434/rb.h
@@ -40,12 +40,14 @@
 #define BTCS		0x010040
 #define BTCOMPARE	0x010044
 #define GPIOBASE	0x050000
-#define GPIOCFG		0x050004
-#define GPIOD		0x050008
-#define GPIOILEVEL	0x05000C
-#define GPIOISTAT	0x050010
-#define GPIONMIEN	0x050014
-#define IMASK6		0x038038
+/* Offsets relative to GPIOBASE */
+#define GPIOFUNC	0x00
+#define GPIOCFG		0x04
+#define GPIOD		0x08
+#define GPIOILEVEL	0x0C
+#define GPIOISTAT	0x10
+#define GPIONMIEN	0x14
+#define IMASK6		0x38
 #define LO_WPX		(1 << 0)
 #define LO_ALE		(1 << 1)
 #define LO_CLE		(1 << 2)
diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h
index d3bd5c5aa2ec..9601ea950542 100644
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -63,7 +63,7 @@ static inline int mips_clockevent_init(void)
 /*
  * Initialize the count register as a clocksource
  */
-#ifdef CONFIG_CEVT_R4K
+#ifdef CONFIG_CSRC_R4K
 extern int init_mips_clocksource(void);
 #else
 static inline int init_mips_clocksource(void)
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index 86e026f067bc..74fb74583b4e 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -27,7 +27,7 @@ int __init init_mips_clocksource(void)
 	if (!cpu_has_counter || !mips_hpt_frequency)
 		return -ENXIO;
 
-	/* Calclate a somewhat reasonable rating value */
+	/* Calculate a somewhat reasonable rating value */
 	clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
 
 	clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
diff --git a/arch/mips/mm/sc-ip22.c b/arch/mips/mm/sc-ip22.c
index 1f602a110e10..13adb5782110 100644
--- a/arch/mips/mm/sc-ip22.c
+++ b/arch/mips/mm/sc-ip22.c
@@ -161,7 +161,7 @@ static inline int __init indy_sc_probe(void)
 
 /* XXX Check with wje if the Indy caches can differenciate between
    writeback + invalidate and just invalidate.  */
-struct bcache_ops indy_sc_ops = {
+static struct bcache_ops indy_sc_ops = {
 	.bc_enable = indy_sc_enable,
 	.bc_disable = indy_sc_disable,
 	.bc_wback_inv = indy_sc_wback_invalidate,
diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c
index 96236bf33838..df9e526312a2 100644
--- a/arch/mips/mti-malta/malta-amon.c
+++ b/arch/mips/mti-malta/malta-amon.c
@@ -22,9 +22,9 @@
 #include <linux/init.h>
 #include <linux/smp.h>
 
-#include <asm-mips/addrspace.h>
-#include <asm-mips/mips-boards/launch.h>
-#include <asm-mips/mipsmtregs.h>
+#include <asm/addrspace.h>
+#include <asm/mips-boards/launch.h>
+#include <asm/mipsmtregs.h>
 
 int amon_cpu_avail(int cpu)
 {
diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c
index 2f22d714d5b0..c1c29181bd46 100644
--- a/arch/mips/rb532/devices.c
+++ b/arch/mips/rb532/devices.c
@@ -118,7 +118,7 @@ static struct platform_device cf_slot0 = {
 /* Resources and device for NAND */
 static int rb532_dev_ready(struct mtd_info *mtd)
 {
-	return readl(IDT434_REG_BASE + GPIOD) & GPIO_RDY;
+	return gpio_get_value(GPIO_RDY);
 }
 
 static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
diff --git a/arch/mips/rb532/gpio.c b/arch/mips/rb532/gpio.c
index 70c4a6726377..0e84c8ab6a39 100644
--- a/arch/mips/rb532/gpio.c
+++ b/arch/mips/rb532/gpio.c
@@ -39,10 +39,6 @@
 struct rb532_gpio_chip {
 	struct gpio_chip chip;
 	void __iomem	 *regbase;
-	void		(*set_int_level)(struct gpio_chip *chip, unsigned offset, int value);
-	int		(*get_int_level)(struct gpio_chip *chip, unsigned offset);
-	void		(*set_int_status)(struct gpio_chip *chip, unsigned offset, int value);
-	int		(*get_int_status)(struct gpio_chip *chip, unsigned offset);
 };
 
 struct mpmc_device dev3;
@@ -111,15 +107,47 @@ unsigned char get_latch_u5(void)
 }
 EXPORT_SYMBOL(get_latch_u5);
 
+/* rb532_set_bit - sanely set a bit
+ *
+ * bitval: new value for the bit
+ * offset: bit index in the 4 byte address range
+ * ioaddr: 4 byte aligned address being altered
+ */
+static inline void rb532_set_bit(unsigned bitval,
+		unsigned offset, void __iomem *ioaddr)
+{
+	unsigned long flags;
+	u32 val;
+
+	bitval = !!bitval;              /* map parameter to {0,1} */
+
+	local_irq_save(flags);
+
+	val = readl(ioaddr);
+	val &= ~( ~bitval << offset );   /* unset bit if bitval == 0 */
+	val |=  (  bitval << offset );   /* set bit if bitval == 1 */
+	writel(val, ioaddr);
+
+	local_irq_restore(flags);
+}
+
+/* rb532_get_bit - read a bit
+ *
+ * returns the boolean state of the bit, which may be > 1
+ */
+static inline int rb532_get_bit(unsigned offset, void __iomem *ioaddr)
+{
+	return (readl(ioaddr) & (1 << offset));
+}
+
 /*
  * Return GPIO level */
 static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	u32			mask = 1 << offset;
 	struct rb532_gpio_chip	*gpch;
 
 	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	return readl(gpch->regbase + GPIOD) & mask;
+	return rb532_get_bit(offset, gpch->regbase + GPIOD);
 }
 
 /*
@@ -128,23 +156,10 @@ static int rb532_gpio_get(struct gpio_chip *chip, unsigned offset)
 static void rb532_gpio_set(struct gpio_chip *chip,
 				unsigned offset, int value)
 {
-	unsigned long		flags;
-	u32			mask = 1 << offset;
-	u32			tmp;
 	struct rb532_gpio_chip	*gpch;
-	void __iomem		*gpvr;
 
 	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	gpvr = gpch->regbase + GPIOD;
-
-	local_irq_save(flags);
-	tmp = readl(gpvr);
-	if (value)
-		tmp |= mask;
-	else
-		tmp &= ~mask;
-	writel(tmp, gpvr);
-	local_irq_restore(flags);
+	rb532_set_bit(value, offset, gpch->regbase + GPIOD);
 }
 
 /*
@@ -152,21 +167,14 @@ static void rb532_gpio_set(struct gpio_chip *chip,
  */
 static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
-	unsigned long		flags;
-	u32			mask = 1 << offset;
-	u32			value;
 	struct rb532_gpio_chip	*gpch;
-	void __iomem		*gpdr;
 
 	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	gpdr = gpch->regbase + GPIOCFG;
 
-	local_irq_save(flags);
-	value = readl(gpdr);
-	value &= ~mask;
-	writel(value, gpdr);
-	local_irq_restore(flags);
+	if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
+		return 1;	/* alternate function, GPIOCFG is ignored */
 
+	rb532_set_bit(0, offset, gpch->regbase + GPIOCFG);
 	return 0;
 }
 
@@ -176,117 +184,60 @@ static int rb532_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 static int rb532_gpio_direction_output(struct gpio_chip *chip,
 					unsigned offset, int value)
 {
-	unsigned long		flags;
-	u32			mask = 1 << offset;
-	u32			tmp;
 	struct rb532_gpio_chip	*gpch;
-	void __iomem		*gpdr;
 
 	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	writel(mask, gpch->regbase + GPIOD);
-	gpdr = gpch->regbase + GPIOCFG;
 
-	local_irq_save(flags);
-	tmp = readl(gpdr);
-	tmp |= mask;
-	writel(tmp, gpdr);
-	local_irq_restore(flags);
+	if (rb532_get_bit(offset, gpch->regbase + GPIOFUNC))
+		return 1;	/* alternate function, GPIOCFG is ignored */
 
+	/* set the initial output value */
+	rb532_set_bit(value, offset, gpch->regbase + GPIOD);
+
+	rb532_set_bit(1, offset, gpch->regbase + GPIOCFG);
 	return 0;
 }
 
-/*
- * Set the GPIO interrupt level
- */
-static void rb532_gpio_set_int_level(struct gpio_chip *chip,
-					unsigned offset, int value)
-{
-	unsigned long		flags;
-	u32			mask = 1 << offset;
-	u32			tmp;
-	struct rb532_gpio_chip	*gpch;
-	void __iomem		*gpil;
-
-	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	gpil = gpch->regbase + GPIOILEVEL;
-
-	local_irq_save(flags);
-	tmp = readl(gpil);
-	if (value)
-		tmp |= mask;
-	else
-		tmp &= ~mask;
-	writel(tmp, gpil);
-	local_irq_restore(flags);
-}
+static struct rb532_gpio_chip rb532_gpio_chip[] = {
+	[0] = {
+		.chip = {
+			.label			= "gpio0",
+			.direction_input	= rb532_gpio_direction_input,
+			.direction_output	= rb532_gpio_direction_output,
+			.get			= rb532_gpio_get,
+			.set			= rb532_gpio_set,
+			.base			= 0,
+			.ngpio			= 32,
+		},
+	},
+};
 
 /*
- * Get the GPIO interrupt level
+ * Set GPIO interrupt level
  */
-static int rb532_gpio_get_int_level(struct gpio_chip *chip, unsigned offset)
+void rb532_gpio_set_ilevel(int bit, unsigned gpio)
 {
-	u32			mask = 1 << offset;
-	struct rb532_gpio_chip	*gpch;
-
-	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	return readl(gpch->regbase + GPIOILEVEL) & mask;
+	rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOILEVEL);
 }
+EXPORT_SYMBOL(rb532_gpio_set_ilevel);
 
 /*
- * Set the GPIO interrupt status
+ * Set GPIO interrupt status
  */
-static void rb532_gpio_set_int_status(struct gpio_chip *chip,
-				unsigned offset, int value)
+void rb532_gpio_set_istat(int bit, unsigned gpio)
 {
-	unsigned long		flags;
-	u32			mask = 1 << offset;
-	u32			tmp;
-	struct rb532_gpio_chip	*gpch;
-	void __iomem		*gpis;
-
-	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	gpis = gpch->regbase + GPIOISTAT;
-
-	local_irq_save(flags);
-	tmp = readl(gpis);
-	if (value)
-		tmp |= mask;
-	else
-		tmp &= ~mask;
-	writel(tmp, gpis);
-	local_irq_restore(flags);
+	rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOISTAT);
 }
+EXPORT_SYMBOL(rb532_gpio_set_istat);
 
 /*
- * Get the GPIO interrupt status
+ * Configure GPIO alternate function
  */
-static int rb532_gpio_get_int_status(struct gpio_chip *chip, unsigned offset)
+static void rb532_gpio_set_func(int bit, unsigned gpio)
 {
-	u32			mask = 1 << offset;
-	struct rb532_gpio_chip	*gpch;
-
-	gpch = container_of(chip, struct rb532_gpio_chip, chip);
-	return readl(gpch->regbase + GPIOISTAT) & mask;
+       rb532_set_bit(bit, gpio, rb532_gpio_chip->regbase + GPIOFUNC);
 }
 
-static struct rb532_gpio_chip rb532_gpio_chip[] = {
-	[0] = {
-		.chip = {
-			.label			= "gpio0",
-			.direction_input	= rb532_gpio_direction_input,
-			.direction_output	= rb532_gpio_direction_output,
-			.get			= rb532_gpio_get,
-			.set			= rb532_gpio_set,
-			.base			= 0,
-			.ngpio			= 32,
-		},
-		.get_int_level		= rb532_gpio_get_int_level,
-		.set_int_level		= rb532_gpio_set_int_level,
-		.get_int_status		= rb532_gpio_get_int_status,
-		.set_int_status		= rb532_gpio_set_int_status,
-	},
-};
-
 int __init rb532_gpio_init(void)
 {
 	struct resource *r;
@@ -310,9 +261,11 @@ int __init rb532_gpio_init(void)
 		return -ENXIO;
 	}
 
-	/* Set the interrupt status and level for the CF pin */
-	rb532_gpio_set_int_level(&rb532_gpio_chip->chip, CF_GPIO_NUM, 1);
-	rb532_gpio_set_int_status(&rb532_gpio_chip->chip, CF_GPIO_NUM, 0);
+	/* configure CF_GPIO_NUM as CFRDY IRQ source */
+	rb532_gpio_set_func(0, CF_GPIO_NUM);
+	rb532_gpio_direction_input(&rb532_gpio_chip->chip, CF_GPIO_NUM);
+	rb532_gpio_set_ilevel(1, CF_GPIO_NUM);
+	rb532_gpio_set_istat(0, CF_GPIO_NUM);
 
 	return 0;
 }
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 90904f9dfc50..927db3668b6f 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -183,10 +183,10 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
  * being 64 bit in both cases.
  */
 
-static long translate_usr_offset(long offset)
+static compat_ulong_t translate_usr_offset(compat_ulong_t offset)
 {
 	if (offset < 0)
-		return -1;
+		return sizeof(struct pt_regs);
 	else if (offset <= 32*4)	/* gr[0..31] */
 		return offset * 2 + 4;
 	else if (offset <= 32*4+32*8)	/* gr[0..31] + fr[0..31] */
@@ -194,7 +194,7 @@ static long translate_usr_offset(long offset)
 	else if (offset < sizeof(struct pt_regs)/2 + 32*4)
 		return offset * 2 + 4 - 32*8;
 	else
-		return -1;
+		return sizeof(struct pt_regs);
 }
 
 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
@@ -209,7 +209,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		if (addr & (sizeof(compat_uint_t)-1))
 			break;
 		addr = translate_usr_offset(addr);
-		if (addr < 0)
+		if (addr >= sizeof(struct pt_regs))
 			break;
 
 		tmp = *(compat_uint_t *) ((char *) task_regs(child) + addr);
@@ -236,7 +236,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			if (addr & (sizeof(compat_uint_t)-1))
 				break;
 			addr = translate_usr_offset(addr);
-			if (addr < 0)
+			if (addr >= sizeof(struct pt_regs))
 				break;
 			if (addr >= PT_FR0 && addr <= PT_FR31 + 4) {
 				/* Special case, fp regs are 64 bits anyway */
diff --git a/arch/sparc/include/asm/termbits.h b/arch/sparc/include/asm/termbits.h
index d6ca3e2754f5..d72dfed1f9d7 100644
--- a/arch/sparc/include/asm/termbits.h
+++ b/arch/sparc/include/asm/termbits.h
@@ -29,10 +29,11 @@ struct termios {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
+#ifndef __KERNEL__
 	cc_t c_cc[NCCS];		/* control characters */
-#ifdef __KERNEL__
+#else
+	cc_t c_cc[NCCS+2];	/* kernel needs 2 more to hold vmin/vtime */
 #define SIZEOF_USER_TERMIOS sizeof (struct termios) - (2*sizeof (cc_t))
-	cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
 #endif
 };
 
@@ -42,8 +43,7 @@ struct termios2 {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	cc_t _x_cc[2];                  /* padding to match ktermios */
+	cc_t c_cc[NCCS+2];		/* control characters */
 	speed_t c_ispeed;		/* input speed */
 	speed_t c_ospeed;		/* output speed */
 };
@@ -54,8 +54,7 @@ struct ktermios {
 	tcflag_t c_cflag;		/* control mode flags */
 	tcflag_t c_lflag;		/* local mode flags */
 	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	cc_t _x_cc[2];                  /* We need them to hold vmin/vtime */
+	cc_t c_cc[NCCS+2];		/* control characters */
 	speed_t c_ispeed;		/* input speed */
 	speed_t c_ospeed;		/* output speed */
 };
diff --git a/arch/sparc/include/asm/unistd_32.h b/arch/sparc/include/asm/unistd_32.h
index 648643a9f139..0d13d2a4c76f 100644
--- a/arch/sparc/include/asm/unistd_32.h
+++ b/arch/sparc/include/asm/unistd_32.h
@@ -338,8 +338,9 @@
 #define __NR_dup3		320
 #define __NR_pipe2		321
 #define __NR_inotify_init1	322
+#define __NR_accept4		323
 
-#define NR_SYSCALLS		323
+#define NR_SYSCALLS		324
 
 /* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
  * it never had the plain ones and there is no value to adding those
diff --git a/arch/sparc/include/asm/unistd_64.h b/arch/sparc/include/asm/unistd_64.h
index c5cc0e052321..fa5d3c0343c7 100644
--- a/arch/sparc/include/asm/unistd_64.h
+++ b/arch/sparc/include/asm/unistd_64.h
@@ -340,8 +340,9 @@
 #define __NR_dup3		320
 #define __NR_pipe2		321
 #define __NR_inotify_init1	322
+#define __NR_accept4		323
 
-#define NR_SYSCALLS		323
+#define NR_SYSCALLS		324
 
 #ifdef __KERNEL__
 #define __ARCH_WANT_IPC_PARSE_VERSION
diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 0837bd52e28f..0a83bd737654 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -563,9 +563,9 @@ build_resources:
 	op->dev.parent = parent;
 	op->dev.bus = &of_platform_bus_type;
 	if (!parent)
-		strcpy(op->dev.bus_id, "root");
+		dev_set_name(&op->dev, "root");
 	else
-		sprintf(op->dev.bus_id, "%08x", dp->node);
+		dev_set_name(&op->dev, "%08x", dp->node);
 
 	if (of_device_register(op)) {
 		printk("%s: Could not register of device.\n",
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index e1b9233b90ab..7d0807586442 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -81,4 +81,4 @@ sys_call_table:
 /*305*/	.long sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 /*310*/	.long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 /*315*/	.long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1
+/*320*/	.long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S
index ade18ba0c686..f061c4dda9ef 100644
--- a/arch/sparc64/kernel/sys32.S
+++ b/arch/sparc64/kernel/sys32.S
@@ -150,7 +150,7 @@ sys32_mmap2:
 sys32_socketcall:	/* %o0=call, %o1=args */
 	cmp		%o0, 1
 	bl,pn		%xcc, do_einval
-	 cmp		%o0, 17
+	 cmp		%o0, 18
 	bg,pn		%xcc, do_einval
 	 sub		%o0, 1, %o0
 	sllx		%o0, 5, %o0
@@ -319,6 +319,15 @@ do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int)
 	nop
 	nop
 	nop
+do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
+63:	ldswa		[%o1 + 0x0] %asi, %o0
+	sethi		%hi(sys_accept4), %g1
+64:	lduwa		[%o1 + 0x8] %asi, %o2
+65:	ldswa		[%o1 + 0xc] %asi, %o3
+	jmpl		%g1 + %lo(sys_accept4), %g0
+66:	 lduwa		[%o1 + 0x4] %asi, %o1
+	nop
+	nop
 
 	.section	__ex_table,"a"
 	.align		4
@@ -353,4 +362,6 @@ do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int)
 	.word		57b, __retl_efault, 58b, __retl_efault
 	.word		59b, __retl_efault, 60b, __retl_efault
 	.word		61b, __retl_efault, 62b, __retl_efault
+	.word		63b, __retl_efault, 64b, __retl_efault
+	.word		65b, __retl_efault, 66b, __retl_efault
 	.previous
diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S
index b2fa4c163638..9fc78cf354bd 100644
--- a/arch/sparc64/kernel/systbls.S
+++ b/arch/sparc64/kernel/systbls.S
@@ -82,7 +82,7 @@ sys_call_table32:
 	.word compat_sys_set_mempolicy, compat_sys_kexec_load, compat_sys_move_pages, sys_getcpu, compat_sys_epoll_pwait
 /*310*/	.word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
 	.word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1
+/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
 
 #endif /* CONFIG_COMPAT */
 
@@ -156,4 +156,4 @@ sys_call_table:
 	.word sys_set_mempolicy, sys_kexec_load, sys_move_pages, sys_getcpu, sys_epoll_pwait
 /*310*/	.word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
 	.word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
-/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1
+/*320*/	.word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 3cf457f90e8e..d4d4cb7629ea 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -952,7 +952,7 @@ config ARCH_PHYS_ADDR_T_64BIT
 config NUMA
 	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
 	depends on SMP
-	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && BROKEN)
+	depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
 	default n if X86_PC
 	default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
 	help
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index 485bdf059ffb..07f1af494ca5 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -34,10 +34,14 @@ static inline void get_memcfg_numa(void)
 
 extern int early_pfn_to_nid(unsigned long pfn);
 
+extern void resume_map_numa_kva(pgd_t *pgd);
+
 #else /* !CONFIG_NUMA */
 
 #define get_memcfg_numa get_memcfg_numa_flat
 
+static inline void resume_map_numa_kva(pgd_t *pgd) {}
+
 #endif /* CONFIG_NUMA */
 
 #ifdef CONFIG_DISCONTIGMEM
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 664f15280f14..f8cfd00db450 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -46,7 +46,7 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size)
 		return ret;
 	case 10:
 		__get_user_asm(*(u64 *)dst, (u64 __user *)src,
-			       ret, "q", "", "=r", 16);
+			       ret, "q", "", "=r", 10);
 		if (unlikely(ret))
 			return ret;
 		__get_user_asm(*(u16 *)(8 + (char *)dst),
diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h
index 834b2c1d89fb..d2e415e6666f 100644
--- a/arch/x86/include/asm/unistd_64.h
+++ b/arch/x86/include/asm/unistd_64.h
@@ -639,8 +639,8 @@ __SYSCALL(__NR_fallocate, sys_fallocate)
 __SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
 #define __NR_timerfd_gettime			287
 __SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
-#define __NR_paccept				288
-__SYSCALL(__NR_paccept, sys_paccept)
+#define __NR_accept4				288
+__SYSCALL(__NR_accept4, sys_accept4)
 #define __NR_signalfd4				289
 __SYSCALL(__NR_signalfd4, sys_signalfd4)
 #define __NR_eventfd2				290
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index e489ff9cb3e2..943fe6026c64 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -12,6 +12,7 @@ CFLAGS_REMOVE_tsc.o = -pg
 CFLAGS_REMOVE_rtc.o = -pg
 CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
 CFLAGS_REMOVE_ftrace.o = -pg
+CFLAGS_REMOVE_early_printk.o = -pg
 endif
 
 #
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 331b318304eb..e4899e0e8787 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -537,7 +537,7 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom,
 	address >>= PAGE_SHIFT;
 	iommu_area_free(dom->bitmap, address, pages);
 
-	if (address + pages >= dom->next_bit)
+	if (address >= dom->next_bit)
 		dom->need_flush = true;
 }
 
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 0cdcda35a05f..30ae2701b3df 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -121,7 +121,7 @@ u16 amd_iommu_last_bdf;			/* largest PCI device id we have
 LIST_HEAD(amd_iommu_unity_map);		/* a list of required unity mappings
 					   we find in ACPI */
 unsigned amd_iommu_aperture_order = 26; /* size of aperture in power of 2 */
-int amd_iommu_isolate;			/* if 1, device isolation is enabled */
+int amd_iommu_isolate = 1;		/* if 1, device isolation is enabled */
 bool amd_iommu_unmap_flush;		/* if true, flush on every unmap */
 
 LIST_HEAD(amd_iommu_list);		/* list of all AMD IOMMUs in the
@@ -1213,7 +1213,9 @@ static int __init parse_amd_iommu_options(char *str)
 	for (; *str; ++str) {
 		if (strncmp(str, "isolate", 7) == 0)
 			amd_iommu_isolate = 1;
-		if (strncmp(str, "fullflush", 11) == 0)
+		if (strncmp(str, "share", 5) == 0)
+			amd_iommu_isolate = 0;
+		if (strncmp(str, "fullflush", 9) == 0)
 			amd_iommu_unmap_flush = true;
 	}
 
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 6e96028d1a9c..fe7014176eb0 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -847,6 +847,7 @@ ENTRY(kernel_thread_helper)
 	push %eax
 	CFI_ADJUST_CFA_OFFSET 4
 	call do_exit
+	ud2			# padding for call trace
 	CFI_ENDPROC
 ENDPROC(kernel_thread_helper)
 
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 08c0c9777a09..e41734a537bd 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -373,6 +373,7 @@ ENTRY(ret_from_fork)
 	call schedule_tail
 	GET_THREAD_INFO(%rcx)
 	testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),TI_flags(%rcx)
+	CFI_REMEMBER_STATE
 	jnz rff_trace
 rff_action:
 	RESTORE_REST
@@ -382,6 +383,7 @@ rff_action:
 	jnz  int_ret_from_sys_call
 	RESTORE_TOP_OF_STACK %rdi, -ARGOFFSET
 	jmp ret_from_sys_call
+	CFI_RESTORE_STATE
 rff_trace:
 	movq %rsp,%rdi
 	call syscall_trace_leave
@@ -1173,6 +1175,7 @@ ENTRY(child_rip)
 	# exit
 	mov %eax, %edi
 	call do_exit
+	ud2			# padding for call trace
 	CFI_ENDPROC
 END(child_rip)
 
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 7a3f2028e2eb..c9513e1ff28d 100644
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -1140,6 +1140,20 @@ static void __clear_irq_vector(int irq)
 
 	cfg->vector = 0;
 	cpus_clear(cfg->domain);
+
+	if (likely(!cfg->move_in_progress))
+		return;
+	cpus_and(mask, cfg->old_domain, cpu_online_map);
+	for_each_cpu_mask_nr(cpu, mask) {
+		for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
+								vector++) {
+			if (per_cpu(vector_irq, cpu)[vector] != irq)
+				continue;
+			per_cpu(vector_irq, cpu)[vector] = -1;
+			break;
+		}
+	}
+	cfg->move_in_progress = 0;
 }
 
 void __setup_vector_irq(int cpu)
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 60eb84eb77a0..1d3d0e71b044 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -18,7 +18,6 @@
 #include <asm/idle.h>
 #include <asm/smp.h>
 
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
 /*
  * Probabilistic stack overflow check:
  *
@@ -28,19 +27,18 @@
  */
 static inline void stack_overflow_check(struct pt_regs *regs)
 {
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
 	u64 curbase = (u64)task_stack_page(current);
-	static unsigned long warned = -60*HZ;
-
-	if (regs->sp >= curbase && regs->sp <= curbase + THREAD_SIZE &&
-	    regs->sp <  curbase + sizeof(struct thread_info) + 128 &&
-	    time_after(jiffies, warned + 60*HZ)) {
-		printk("do_IRQ: %s near stack overflow (cur:%Lx,sp:%lx)\n",
-		       current->comm, curbase, regs->sp);
-		show_stack(NULL,NULL);
-		warned = jiffies;
-	}
-}
+
+	WARN_ONCE(regs->sp >= curbase &&
+		  regs->sp <= curbase + THREAD_SIZE &&
+		  regs->sp <  curbase + sizeof(struct thread_info) +
+					sizeof(struct pt_regs) + 128,
+
+		  "do_IRQ: %s near stack overflow (cur:%Lx,sp:%lx)\n",
+			current->comm, curbase, regs->sp);
 #endif
+}
 
 /*
  * do_IRQ handles all normal device IRQ's (the special
@@ -60,9 +58,7 @@ asmlinkage unsigned int do_IRQ(struct pt_regs *regs)
 	irq_enter();
 	irq = __get_cpu_var(vector_irq)[vector];
 
-#ifdef CONFIG_DEBUG_STACKOVERFLOW
 	stack_overflow_check(regs);
-#endif
 
 	desc = irq_to_desc(irq);
 	if (likely(desc))
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 724adfc63cb9..cc5a2545dd41 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -169,6 +169,15 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "0KW626"),
 		},
 	},
+	{   /* Handle problems with rebooting on Dell Optiplex 330 with 0KP561 */
+		.callback = set_bios_reboot,
+		.ident = "Dell OptiPlex 330",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 330"),
+			DMI_MATCH(DMI_BOARD_NAME, "0KP561"),
+		},
+	},
 	{	/* Handle problems with rebooting on Dell 2400's */
 		.callback = set_bios_reboot,
 		.ident = "Dell PowerEdge 2400",
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 0fa6790c1dd3..9d5674f7b6cc 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -764,7 +764,7 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
 		.callback = dmi_low_memory_corruption,
 		.ident = "Phoenix BIOS",
 		.matches = {
-			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
+			DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies"),
 		},
 	},
 #endif
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index cb19d650c216..418a095c5796 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -80,6 +80,8 @@ unsigned long __init calibrate_cpu(void)
 			break;
 	no_ctr_free = (i == 4);
 	if (no_ctr_free) {
+		WARN(1, KERN_WARNING "Warning: AMD perfctrs busy ... "
+		     "cpu_khz value may be incorrect.\n");
 		i = 3;
 		rdmsrl(MSR_K7_EVNTSEL3, evntsel3);
 		wrmsrl(MSR_K7_EVNTSEL3, 0);
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 847c164725f4..8518c678d83f 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -222,6 +222,41 @@ static void __init remap_numa_kva(void)
 	}
 }
 
+#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, size, pfn;
+
+		start_va = (unsigned long)node_remap_start_vaddr[node];
+		start_pfn = node_remap_start_pfn[node];
+		size = node_remap_size[node];
+
+		printk(KERN_DEBUG "%s: node %d\n", __FUNCTION__, node);
+
+		for (pfn = 0; pfn < size; 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",
+				__FUNCTION__, vaddr, start_pfn + pfn);
+		}
+	}
+}
+#endif
+
 static unsigned long calculate_numa_remap_pages(void)
 {
 	int nid;
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index f2b6e3f11bfc..81197c62d5b3 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -12,6 +12,7 @@
 #include <asm/system.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/mmzone.h>
 
 /* Defined in hibernate_asm_32.S */
 extern int restore_image(void);
@@ -127,6 +128,9 @@ static int resume_physical_mapping_init(pgd_t *pgd_base)
 			}
 		}
 	}
+
+	resume_map_numa_kva(pgd_base);
+
 	return 0;
 }