Merge commit 'v2.6.30-rc6' into tracing/core

Merge reason: we were on an -rc4 base, sync up to -rc6

Signed-off-by: Ingo Molnar <mingo@elte.hu>

46 files changed, 310 insertions, 330 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 998e5db8cc0..09b1287a92c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1411,13 +1411,12 @@ config PAGE_SIZE_4KB
 
 config PAGE_SIZE_8KB
 	bool "8kB"
-	depends on EXPERIMENTAL && CPU_R8000
+	depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
 	help
 	  Using 8kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available
-	  only on the R8000 processor.  Not that at the time of this writing
-	  this option is still high experimental; there are also issues with
-	  compatibility of user applications.
+	  only on R8000 and cnMIPS processors.  Note that you will need a
+	  suitable Linux distribution to support this.
 
 config PAGE_SIZE_16KB
 	bool "16kB"
@@ -1428,6 +1427,15 @@ config PAGE_SIZE_16KB
 	  all non-R3000 family processors.  Note that you will need a suitable
 	  Linux distribution to support this.
 
+config PAGE_SIZE_32KB
+	bool "32kB"
+	depends on CPU_CAVIUM_OCTEON
+	help
+	  Using 32kB page size will result in higher performance kernel at
+	  the price of higher memory consumption.  This option is available
+	  only on cnMIPS cores.  Note that you will need a suitable Linux
+	  distribution to support this.
+
 config PAGE_SIZE_64KB
 	bool "64kB"
 	depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
@@ -1958,10 +1966,6 @@ config SECCOMP
 
 endmenu
 
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
 config LOCKDEP_SUPPORT
 	bool
 	default y
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 8d544c7c9fe..26947ab8526 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -14,8 +14,6 @@
 
 KBUILD_DEFCONFIG := ip22_defconfig
 
-cflags-y := -ffunction-sections
-
 #
 # Select the object file format to substitute into the linker script.
 #
@@ -50,6 +48,9 @@ ifneq ($(SUBARCH),$(ARCH))
   endif
 endif
 
+cflags-y := -ffunction-sections
+cflags-y += $(call cc-option, -mno-check-zero-division)
+
 ifdef CONFIG_32BIT
 ld-emul			= $(32bit-emul)
 vmlinux-32		= vmlinux
diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c
index f58d4ffb894..33fbae79af5 100644
--- a/arch/mips/alchemy/common/time.c
+++ b/arch/mips/alchemy/common/time.c
@@ -44,7 +44,7 @@
 
 extern int allow_au1k_wait; /* default off for CP0 Counter */
 
-static cycle_t au1x_counter1_read(void)
+static cycle_t au1x_counter1_read(struct clocksource *cs)
 {
 	return au_readl(SYS_RTCREAD);
 }
diff --git a/arch/mips/cavium-octeon/csrc-octeon.c b/arch/mips/cavium-octeon/csrc-octeon.c
index 70fd92c3165..96110f217dc 100644
--- a/arch/mips/cavium-octeon/csrc-octeon.c
+++ b/arch/mips/cavium-octeon/csrc-octeon.c
@@ -38,7 +38,7 @@ void octeon_init_cvmcount(void)
 	local_irq_restore(flags);
 }
 
-static cycle_t octeon_cvmcount_read(void)
+static cycle_t octeon_cvmcount_read(struct clocksource *cs)
 {
 	return read_c0_cvmcount();
 }
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index bac4a960b24..b1e9e97a9c7 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -567,7 +567,7 @@ static inline unsigned long __fls(unsigned long word)
 	int num;
 
 	if (BITS_PER_LONG == 32 &&
-	    __builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
+	    __builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
 		__asm__(
 		"	.set	push					\n"
 		"	.set	mips32					\n"
@@ -644,7 +644,7 @@ static inline int fls(int x)
 {
 	int r;
 
-	if (__builtin_constant_p(cpu_has_mips_r) && cpu_has_mips_r) {
+	if (__builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
 		__asm__("clz %0, %1" : "=r" (x) : "r" (x));
 
 		return 32 - x;
diff --git a/arch/mips/include/asm/checksum.h b/arch/mips/include/asm/checksum.h
index 290485ac540..f2f7c6c264d 100644
--- a/arch/mips/include/asm/checksum.h
+++ b/arch/mips/include/asm/checksum.h
@@ -40,7 +40,7 @@ static inline
 __wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len,
 				   __wsum sum, int *err_ptr)
 {
-	might_sleep();
+	might_fault();
 	return __csum_partial_copy_user((__force void *)src, dst,
 					len, sum, err_ptr);
 }
@@ -53,7 +53,7 @@ static inline
 __wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
 			     __wsum sum, int *err_ptr)
 {
-	might_sleep();
+	might_fault();
 	if (access_ok(VERIFY_WRITE, dst, len))
 		return __csum_partial_copy_user(src, (__force void *)dst,
 						len, sum, err_ptr);
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 6c5b40905dd..f58aed354bf 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -3,7 +3,6 @@
 /*
  * Architecture specific compatibility types
  */
-#include <linux/seccomp.h>
 #include <linux/thread_info.h>
 #include <linux/types.h>
 #include <asm/page.h>
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index a0d14f85b78..c0047f86133 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -147,6 +147,15 @@
 #define cpu_has_mips_r	(cpu_has_mips32r1 | cpu_has_mips32r2 | \
 			 cpu_has_mips64r1 | cpu_has_mips64r2)
 
+/*
+ * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other
+ * pre-MIPS32/MIPS53 processors have CLO, CLZ.  For 64-bit kernels
+ * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ.
+ */
+# ifndef cpu_has_clo_clz
+# define cpu_has_clo_clz	cpu_has_mips_r
+# endif
+
 #ifndef cpu_has_dsp
 #define cpu_has_dsp		(cpu_data[0].ases & MIPS_ASE_DSP)
 #endif
diff --git a/arch/mips/include/asm/div64.h b/arch/mips/include/asm/div64.h
index d1d699105c1..dc5ea573644 100644
--- a/arch/mips/include/asm/div64.h
+++ b/arch/mips/include/asm/div64.h
@@ -6,105 +6,63 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-#ifndef _ASM_DIV64_H
-#define _ASM_DIV64_H
+#ifndef __ASM_DIV64_H
+#define __ASM_DIV64_H
 
-#include <linux/types.h>
+#include <asm-generic/div64.h>
 
-#if (_MIPS_SZLONG == 32)
+#if BITS_PER_LONG == 64
 
-#include <asm/compiler.h>
+#include <linux/types.h>
 
 /*
  * No traps on overflows for any of these...
  */
 
-#define do_div64_32(res, high, low, base) ({ \
-	unsigned long __quot32, __mod32; \
-	unsigned long __cf, __tmp, __tmp2, __i; \
-	\
-	__asm__(".set	push\n\t" \
-		".set	noat\n\t" \
-		".set	noreorder\n\t" \
-		"move	%2, $0\n\t" \
-		"move	%3, $0\n\t" \
-		"b	1f\n\t" \
-		" li	%4, 0x21\n" \
-		"0:\n\t" \
-		"sll	$1, %0, 0x1\n\t" \
-		"srl	%3, %0, 0x1f\n\t" \
-		"or	%0, $1, %5\n\t" \
-		"sll	%1, %1, 0x1\n\t" \
-		"sll	%2, %2, 0x1\n" \
-		"1:\n\t" \
-		"bnez	%3, 2f\n\t" \
-		" sltu	%5, %0, %z6\n\t" \
-		"bnez	%5, 3f\n" \
-		"2:\n\t" \
-		" addiu	%4, %4, -1\n\t" \
-		"subu	%0, %0, %z6\n\t" \
-		"addiu	%2, %2, 1\n" \
-		"3:\n\t" \
-		"bnez	%4, 0b\n\t" \
-		" srl	%5, %1, 0x1f\n\t" \
-		".set	pop" \
-		: "=&r" (__mod32), "=&r" (__tmp), \
-		  "=&r" (__quot32), "=&r" (__cf), \
-		  "=&r" (__i), "=&r" (__tmp2) \
-		: "Jr" (base), "0" (high), "1" (low)); \
-	\
-	(res) = __quot32; \
-	__mod32; })
-
-#define do_div(n, base) ({ \
-	unsigned long long __quot; \
-	unsigned long __mod; \
-	unsigned long long __div; \
-	unsigned long __upper, __low, __high, __base; \
-	\
-	__div = (n); \
-	__base = (base); \
-	\
-	__high = __div >> 32; \
-	__low = __div; \
-	__upper = __high; \
-	\
-	if (__high) \
-		__asm__("divu	$0, %z2, %z3" \
-			: "=h" (__upper), "=l" (__high) \
-			: "Jr" (__high), "Jr" (__base) \
-			: GCC_REG_ACCUM); \
-	\
-	__mod = do_div64_32(__low, __upper, __low, __base); \
-	\
-	__quot = __high; \
-	__quot = __quot << 32 | __low; \
-	(n) = __quot; \
-	__mod; })
-
-#endif /* (_MIPS_SZLONG == 32) */
-
-#if (_MIPS_SZLONG == 64)
-
-/*
- * Hey, we're already 64-bit, no
- * need to play games..
- */
-#define do_div(n, base) ({ \
-	unsigned long __quot; \
-	unsigned int __mod; \
-	unsigned long __div; \
-	unsigned int __base; \
-	\
-	__div = (n); \
-	__base = (base); \
-	\
-	__mod = __div % __base; \
-	__quot = __div / __base; \
-	\
-	(n) = __quot; \
-	__mod; })
+#define __div64_32(n, base)						\
+({									\
+	unsigned long __cf, __tmp, __tmp2, __i;				\
+	unsigned long __quot32, __mod32;				\
+	unsigned long __high, __low;					\
+	unsigned long long __n;						\
+									\
+	__high = *__n >> 32;						\
+	__low = __n;							\
+	__asm__(							\
+	"	.set	push					\n"	\
+	"	.set	noat					\n"	\
+	"	.set	noreorder				\n"	\
+	"	move	%2, $0					\n"	\
+	"	move	%3, $0					\n"	\
+	"	b	1f					\n"	\
+	"	 li	%4, 0x21				\n"	\
+	"0:							\n"	\
+	"	sll	$1, %0, 0x1				\n"	\
+	"	srl	%3, %0, 0x1f				\n"	\
+	"	or	%0, $1, %5				\n"	\
+	"	sll	%1, %1, 0x1				\n"	\
+	"	sll	%2, %2, 0x1				\n"	\
+	"1:							\n"	\
+	"	bnez	%3, 2f					\n"	\
+	"	 sltu	%5, %0, %z6				\n"	\
+	"	bnez	%5, 3f					\n"	\
+	"2:							\n"	\
+	"	 addiu	%4, %4, -1				\n"	\
+	"	subu	%0, %0, %z6				\n"	\
+	"	addiu	%2, %2, 1				\n"	\
+	"3:							\n"	\
+	"	bnez	%4, 0b\n\t"					\
+	"	 srl	%5, %1, 0x1f\n\t"				\
+	"	.set	pop"						\
+	: "=&r" (__mod32), "=&r" (__tmp),				\
+	  "=&r" (__quot32), "=&r" (__cf),				\
+	  "=&r" (__i), "=&r" (__tmp2)					\
+	: "Jr" (base), "0" (__high), "1" (__low));			\
+									\
+	(__n) = __quot32;						\
+	__mod32;							\
+})
 
-#endif /* (_MIPS_SZLONG == 64) */
+#endif /* BITS_PER_LONG == 64 */
 
-#endif /* _ASM_DIV64_H */
+#endif /* __ASM_DIV64_H */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index c64afb40cd0..d16afddb09a 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -24,8 +24,13 @@ extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
 	enum dma_data_direction direction);
 extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
 	unsigned long offset, size_t size, enum dma_data_direction direction);
-extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-	size_t size, enum dma_data_direction direction);
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+	size_t size, enum dma_data_direction direction)
+{
+	dma_unmap_single(dev, dma_address, size, direction);
+}
+
 extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 	int nhwentries, enum dma_data_direction direction);
 extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
diff --git a/arch/mips/include/asm/fixmap.h b/arch/mips/include/asm/fixmap.h
index 9cc8522a394..0f5caa1307f 100644
--- a/arch/mips/include/asm/fixmap.h
+++ b/arch/mips/include/asm/fixmap.h
@@ -108,6 +108,9 @@ static inline unsigned long virt_to_fix(const unsigned long vaddr)
 	return __virt_to_fix(vaddr);
 }
 
+#define kmap_get_fixmap_pte(vaddr)					\
+	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
+
 /*
  * Called from pgtable_init()
  */
diff --git a/arch/mips/include/asm/hazards.h b/arch/mips/include/asm/hazards.h
index a12d971db4f..0eaf77ffbc4 100644
--- a/arch/mips/include/asm/hazards.h
+++ b/arch/mips/include/asm/hazards.h
@@ -138,8 +138,9 @@ do {									\
 		__instruction_hazard();					\
 } while (0)
 
-#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \
-      defined(CONFIG_CPU_R5500) || defined(CONFIG_MACH_ALCHEMY)
+#elif defined(CONFIG_MACH_ALCHEMY) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \
+      defined(CONFIG_CPU_LOONGSON2) || defined(CONFIG_CPU_R10000) || \
+      defined(CONFIG_CPU_R5500)
 
 /*
  * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer.
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 4374ab2adc7..25adfb02923 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -30,8 +30,6 @@
 /* declarations for highmem.c */
 extern unsigned long highstart_pfn, highend_pfn;
 
-extern pte_t *kmap_pte;
-extern pgprot_t kmap_prot;
 extern pte_t *pkmap_page_table;
 
 /*
@@ -62,6 +60,10 @@ extern struct page *__kmap_atomic_to_page(void *ptr);
 
 #define flush_cache_kmaps()	flush_cache_all()
 
+extern void kmap_init(void);
+
+#define kmap_prot PAGE_KERNEL
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_HIGHMEM_H */
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index 62f91f50b5b..854e95f1b07 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -715,7 +715,7 @@ enum soc_au1500_ints {
 #ifdef CONFIG_SOC_AU1100
 enum soc_au1100_ints {
 	AU1100_FIRST_INT	= MIPS_CPU_IRQ_BASE + 8,
-	AU1100_UART0_INT,
+	AU1100_UART0_INT	= AU1100_FIRST_INT,
 	AU1100_UART1_INT,
 	AU1100_SD_INT,
 	AU1100_UART3_INT,
@@ -902,8 +902,8 @@ enum soc_au1200_ints {
 	AU1000_RTC_MATCH0_INT,
 	AU1000_RTC_MATCH1_INT,
 	AU1000_RTC_MATCH2_INT,
-
-	AU1200_NAND_INT		= AU1200_FIRST_INT + 23,
+	AU1200_GPIO_203,
+	AU1200_NAND_INT,
 	AU1200_GPIO_204,
 	AU1200_GPIO_205,
 	AU1200_GPIO_206,
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h b/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
index 60638b8969b..5656c72de6d 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h
@@ -46,20 +46,6 @@
 #define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON	0
 #endif
 
-#ifdef CONFIG_PM
-/*
- * This will enable the device to be powered up when write() or read()
- * is called. If this is not defined, the driver will return -EBUSY.
- */
-#define WAKE_ON_ACCESS 1
-
-typedef struct {
-	spinlock_t		lock;	/* Used to block on state transitions */
-	au1xxx_power_dev_t	*dev;	/* Power Managers device structure */
-	unsigned		stopped; /* Used to signal device is stopped */
-} pm_state;
-#endif
-
 typedef struct {
 	u32			tx_dev_id, rx_dev_id, target_dev_id;
 	u32			tx_chan, rx_chan;
@@ -72,9 +58,6 @@ typedef struct {
 #endif
 	int			irq;
 	u32			regbase;
-#ifdef CONFIG_PM
-	pm_state		pm;
-#endif
 } _auide_hwif;
 
 /******************************************************************************/
diff --git a/arch/mips/include/asm/mach-lemote/cpu-feature-overrides.h b/arch/mips/include/asm/mach-lemote/cpu-feature-overrides.h
new file mode 100644
index 00000000000..550a10dc9db
--- /dev/null
+++ b/arch/mips/include/asm/mach-lemote/cpu-feature-overrides.h
@@ -0,0 +1,59 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2009 Wu Zhangjin <wuzj@lemote.com>
+ * Copyright (C) 2009 Philippe Vachon <philippe@cowpig.ca>
+ * Copyright (C) 2009 Zhang Le <r0bertz@gentoo.org>
+ *
+ * reference: /proc/cpuinfo,
+ * 	arch/mips/kernel/cpu-probe.c(cpu_probe_legacy),
+ * 	arch/mips/kernel/proc.c(show_cpuinfo),
+ *      loongson2f user manual.
+ */
+
+#ifndef __ASM_MACH_LEMOTE_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_LEMOTE_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_dcache_line_size()	32
+#define cpu_icache_line_size()	32
+#define cpu_scache_line_size()	32
+
+
+#define cpu_has_32fpr		1
+#define cpu_has_3k_cache	0
+#define cpu_has_4k_cache	1
+#define cpu_has_4kex		1
+#define cpu_has_64bits		1
+#define cpu_has_cache_cdex_p	0
+#define cpu_has_cache_cdex_s	0
+#define cpu_has_counter		1
+#define cpu_has_dc_aliases	1
+#define cpu_has_divec		0
+#define cpu_has_dsp		0
+#define cpu_has_ejtag		0
+#define cpu_has_fpu		1
+#define cpu_has_ic_fills_f_dc	0
+#define cpu_has_inclusive_pcaches	1
+#define cpu_has_llsc 		1
+#define cpu_has_mcheck		0
+#define cpu_has_mdmx		0
+#define cpu_has_mips16		0
+#define cpu_has_mips32r1	0
+#define cpu_has_mips32r2	0
+#define cpu_has_mips3d		0
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+#define cpu_has_mipsmt		0
+#define cpu_has_prefetch	0
+#define cpu_has_smartmips	0
+#define cpu_has_tlb		1
+#define cpu_has_tx39_cache	0
+#define cpu_has_userlocal	0
+#define cpu_has_vce		0
+#define cpu_has_vtag_icache	0
+#define cpu_has_watch		1
+#define cpu_icache_snoops_remote_store	1
+
+#endif /* __ASM_MACH_LEMOTE_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 526f327475c..32ef8bec5c8 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -184,12 +184,19 @@
 #else
 
 #define PM_4K		0x00000000
+#define PM_8K		0x00002000
 #define PM_16K		0x00006000
+#define PM_32K		0x0000e000
 #define PM_64K		0x0001e000
+#define PM_128K		0x0003e000
 #define PM_256K		0x0007e000
+#define PM_512K		0x000fe000
 #define PM_1M		0x001fe000
+#define PM_2M		0x003fe000
 #define PM_4M		0x007fe000
+#define PM_8M		0x00ffe000
 #define PM_16M		0x01ffe000
+#define PM_32M		0x03ffe000
 #define PM_64M		0x07ffe000
 #define PM_256M		0x1fffe000
 #define PM_1G		0x7fffe000
@@ -201,8 +208,12 @@
  */
 #ifdef CONFIG_PAGE_SIZE_4KB
 #define PM_DEFAULT_MASK	PM_4K
+#elif defined(CONFIG_PAGE_SIZE_8KB)
+#define PM_DEFAULT_MASK	PM_8K
 #elif defined(CONFIG_PAGE_SIZE_16KB)
 #define PM_DEFAULT_MASK	PM_16K
+#elif defined(CONFIG_PAGE_SIZE_32KB)
+#define PM_DEFAULT_MASK	PM_32K
 #elif defined(CONFIG_PAGE_SIZE_64KB)
 #define PM_DEFAULT_MASK	PM_64K
 #else
@@ -717,8 +728,8 @@ do {									\
 			".set\tmips64\n\t"				\
 			"dmfc0\t%M0, " #source "\n\t"			\
 			"dsll\t%L0, %M0, 32\n\t"			\
-			"dsrl\t%M0, %M0, 32\n\t"			\
-			"dsrl\t%L0, %L0, 32\n\t"			\
+			"dsra\t%M0, %M0, 32\n\t"			\
+			"dsra\t%L0, %L0, 32\n\t"			\
 			".set\tmips0"					\
 			: "=r" (__val));				\
 	else								\
@@ -726,8 +737,8 @@ do {									\
 			".set\tmips64\n\t"				\
 			"dmfc0\t%M0, " #source ", " #sel "\n\t"		\
 			"dsll\t%L0, %M0, 32\n\t"			\
-			"dsrl\t%M0, %M0, 32\n\t"			\
-			"dsrl\t%L0, %L0, 32\n\t"			\
+			"dsra\t%M0, %M0, 32\n\t"			\
+			"dsra\t%L0, %L0, 32\n\t"			\
 			".set\tmips0"					\
 			: "=r" (__val));				\
 	local_irq_restore(__flags);					\
@@ -1484,14 +1495,15 @@ static inline unsigned int					\
 set_c0_##name(unsigned int set)					\
 {								\
 	unsigned int res;					\
+	unsigned int new;					\
 	unsigned int omt;					\
 	unsigned long flags;					\
 								\
 	local_irq_save(flags);					\
 	omt = __dmt();						\
 	res = read_c0_##name();					\
-	res |= set;						\
-	write_c0_##name(res);					\
+	new = res | set;					\
+	write_c0_##name(new);					\
 	__emt(omt);						\
 	local_irq_restore(flags);				\
 								\
@@ -1502,14 +1514,15 @@ static inline unsigned int					\
 clear_c0_##name(unsigned int clear)				\
 {								\
 	unsigned int res;					\
+	unsigned int new;					\
 	unsigned int omt;					\
 	unsigned long flags;					\
 								\
 	local_irq_save(flags);					\
 	omt = __dmt();						\
 	res = read_c0_##name();					\
-	res &= ~clear;						\
-	write_c0_##name(res);					\
+	new = res & ~clear;					\
+	write_c0_##name(new);					\
 	__emt(omt);						\
 	local_irq_restore(flags);				\
 								\
@@ -1517,9 +1530,10 @@ clear_c0_##name(unsigned int clear)				\
 }								\
 								\
 static inline unsigned int					\
-change_c0_##name(unsigned int change, unsigned int new)		\
+change_c0_##name(unsigned int change, unsigned int newbits)	\
 {								\
 	unsigned int res;					\
+	unsigned int new;					\
 	unsigned int omt;					\
 	unsigned long flags;					\
 								\
@@ -1527,9 +1541,9 @@ change_c0_##name(unsigned int change, unsigned int new)		\
 								\
 	omt = __dmt();						\
 	res = read_c0_##name();					\
-	res &= ~change;						\
-	res |= (new & change);					\
-	write_c0_##name(res);					\
+	new = res & ~change;					\
+	new |= (newbits & change);				\
+	write_c0_##name(new);					\
 	__emt(omt);						\
 	local_irq_restore(flags);				\
 								\
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index fe7a88ea066..9f946e4ca05 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -23,6 +23,9 @@
 #ifdef CONFIG_PAGE_SIZE_16KB
 #define PAGE_SHIFT	14
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define PAGE_SHIFT	15
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define PAGE_SHIFT	16
 #endif
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index 943515f0ef8..4ed9d1bba2b 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -83,6 +83,12 @@
 #define PMD_ORDER		0
 #define PTE_ORDER		0
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define PGD_ORDER		0
+#define PUD_ORDER		aieeee_attempt_to_allocate_pud
+#define PMD_ORDER		0
+#define PTE_ORDER		0
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define PGD_ORDER		0
 #define PUD_ORDER		aieeee_attempt_to_allocate_pud
diff --git a/arch/mips/include/asm/sn/addrs.h b/arch/mips/include/asm/sn/addrs.h
index fec9bdd3491..3a56d90abfa 100644
--- a/arch/mips/include/asm/sn/addrs.h
+++ b/arch/mips/include/asm/sn/addrs.h
@@ -359,11 +359,11 @@
 	TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
 #define LAUNCH_SIZE(nasid)	KLD_LAUNCH(nasid)->size
 
-#define NMI_OFFSET(nasid, slice)					\
+#define SN_NMI_OFFSET(nasid, slice)					\
 	(KLD_NMI(nasid)->offset +					\
 	 KLD_NMI(nasid)->stride * (slice))
 #define NMI_ADDR(nasid, slice)						\
-	TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice))
+	TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
 #define NMI_SIZE(nasid)	KLD_NMI(nasid)->size
 
 #define KLCONFIG_OFFSET(nasid)	KLD_KLCONFIG(nasid)->offset
diff --git a/arch/mips/include/asm/sn/nmi.h b/arch/mips/include/asm/sn/nmi.h
index 6b7b0b5f372..1af49897d4e 100644
--- a/arch/mips/include/asm/sn/nmi.h
+++ b/arch/mips/include/asm/sn/nmi.h
@@ -3,13 +3,13 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
+ * Derived from IRIX <sys/SN/nmi.h>, Revision 1.5.
+ *
  * Copyright (C) 1992 - 1997 Silicon Graphics, Inc.
  */
 #ifndef __ASM_SN_NMI_H
 #define __ASM_SN_NMI_H
 
-#ident "$Revision: 1.5 $"
-
 #include <asm/sn/addrs.h>
 
 /*
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 676aa2ae191..143a48136a4 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -75,6 +75,9 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #ifdef CONFIG_PAGE_SIZE_16KB
 #define THREAD_SIZE_ORDER (0)
 #endif
+#ifdef CONFIG_PAGE_SIZE_32KB
+#define THREAD_SIZE_ORDER (0)
+#endif
 #ifdef CONFIG_PAGE_SIZE_64KB
 #define THREAD_SIZE_ORDER (0)
 #endif
diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h
index 38a30d2ee95..df6a430de5e 100644
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -57,7 +57,11 @@ extern int r4k_clockevent_init(void);
 
 static inline int mips_clockevent_init(void)
 {
-#ifdef CONFIG_CEVT_R4K
+#ifdef CONFIG_MIPS_MT_SMTC
+	extern int smtc_clockevent_init(void);
+
+	return smtc_clockevent_init();
+#elif defined(CONFIG_CEVT_R4K)
 	return r4k_clockevent_init();
 #else
 	return -ENXIO;
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 09ff5bb1744..8de858f5449 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -105,10 +105,20 @@
 #define __access_mask get_fs().seg
 
 #define __access_ok(addr, size, mask)					\
-	(((signed long)((mask) & ((addr) | ((addr) + (size)) | __ua_size(size)))) == 0)
+({									\
+	unsigned long __addr = (unsigned long) (addr);			\
+	unsigned long __size = size;					\
+	unsigned long __mask = mask;					\
+	unsigned long __ok;						\
+									\
+	__chk_user_ptr(addr);						\
+	__ok = (signed long)(__mask & (__addr | (__addr + __size) |	\
+		__ua_size(__size)));					\
+	__ok == 0;							\
+})
 
 #define access_ok(type, addr, size)					\
-	likely(__access_ok((unsigned long)(addr), (size), __access_mask))
+	likely(__access_ok((addr), (size), __access_mask))
 
 /*
  * put_user: - Write a simple value into user space.
@@ -225,6 +235,7 @@ do {									\
 ({									\
 	int __gu_err;							\
 									\
+	__chk_user_ptr(ptr);						\
 	__get_user_common((x), size, ptr);				\
 	__gu_err;							\
 })
@@ -234,6 +245,7 @@ do {									\
 	int __gu_err = -EFAULT;						\
 	const __typeof__(*(ptr)) __user * __gu_ptr = (ptr);		\
 									\
+	might_fault();							\
 	if (likely(access_ok(VERIFY_READ,  __gu_ptr, size)))		\
 		__get_user_common((x), size, __gu_ptr);			\
 									\
@@ -305,6 +317,7 @@ do {									\
 	__typeof__(*(ptr)) __pu_val;					\
 	int __pu_err = 0;						\
 									\
+	__chk_user_ptr(ptr);						\
 	__pu_val = (x);							\
 	switch (size) {							\
 	case 1: __put_user_asm("sb", ptr); break;			\
@@ -322,6 +335,7 @@ do {									\
 	__typeof__(*(ptr)) __pu_val = (x);				\
 	int __pu_err = -EFAULT;						\
 									\
+	might_fault();							\
 	if (likely(access_ok(VERIFY_WRITE,  __pu_addr, size))) {	\
 		switch (size) {						\
 		case 1: __put_user_asm("sb", __pu_addr); break;		\
@@ -696,10 +710,10 @@ extern size_t __copy_user(void *__to, const void *__from, size_t __n);
 	const void *__cu_from;						\
 	long __cu_len;							\
 									\
-	might_sleep();							\
 	__cu_to = (to);							\
 	__cu_from = (from);						\
 	__cu_len = (n);							\
+	might_fault();							\
 	__cu_len = __invoke_copy_to_user(__cu_to, __cu_from, __cu_len);	\
 	__cu_len;							\
 })
@@ -752,13 +766,14 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	const void *__cu_from;						\
 	long __cu_len;							\
 									\
-	might_sleep();							\
 	__cu_to = (to);							\
 	__cu_from = (from);						\
 	__cu_len = (n);							\
-	if (access_ok(VERIFY_WRITE, __cu_to, __cu_len))			\
+	if (access_ok(VERIFY_WRITE, __cu_to, __cu_len)) {		\
+		might_fault();						\
 		__cu_len = __invoke_copy_to_user(__cu_to, __cu_from,	\
 		                                 __cu_len);		\
+	}								\
 	__cu_len;							\
 })
 
@@ -831,10 +846,10 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	const void __user *__cu_from;					\
 	long __cu_len;							\
 									\
-	might_sleep();							\
 	__cu_to = (to);							\
 	__cu_from = (from);						\
 	__cu_len = (n);							\
+	might_fault();							\
 	__cu_len = __invoke_copy_from_user(__cu_to, __cu_from,		\
 	                                   __cu_len);			\
 	__cu_len;							\
@@ -862,17 +877,31 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	const void __user *__cu_from;					\
 	long __cu_len;							\
 									\
-	might_sleep();							\
 	__cu_to = (to);							\
 	__cu_from = (from);						\
 	__cu_len = (n);							\
-	if (access_ok(VERIFY_READ, __cu_from, __cu_len))		\
+	if (access_ok(VERIFY_READ, __cu_from, __cu_len)) {		\
+		might_fault();						\
 		__cu_len = __invoke_copy_from_user(__cu_to, __cu_from,	\
 		                                   __cu_len);		\
+	}								\
 	__cu_len;							\
 })
 
-#define __copy_in_user(to, from, n)	__copy_from_user(to, from, n)
+#define __copy_in_user(to, from, n)					\
+({									\
+	void __user *__cu_to;						\
+	const void __user *__cu_from;					\
+	long __cu_len;							\
+									\
+	__cu_to = (to);							\
+	__cu_from = (from);						\
+	__cu_len = (n);							\
+	might_fault();							\
+	__cu_len = __invoke_copy_from_user(__cu_to, __cu_from,		\
+	                                   __cu_len);			\
+	__cu_len;							\
+})
 
 #define copy_in_user(to, from, n)					\
 ({									\
@@ -880,14 +909,15 @@ extern size_t __copy_user_inatomic(void *__to, const void *__from, size_t __n);
 	const void __user *__cu_from;					\
 	long __cu_len;							\
 									\
-	might_sleep();							\
 	__cu_to = (to);							\
 	__cu_from = (from);						\
 	__cu_len = (n);							\
 	if (likely(access_ok(VERIFY_READ, __cu_from, __cu_len) &&	\
-	           access_ok(VERIFY_WRITE, __cu_to, __cu_len)))		\
+	           access_ok(VERIFY_WRITE, __cu_to, __cu_len))) {	\
+		might_fault();						\
 		__cu_len = __invoke_copy_from_user(__cu_to, __cu_from,	\
 		                                   __cu_len);		\
+	}								\
 	__cu_len;							\
 })
 
@@ -907,7 +937,7 @@ __clear_user(void __user *addr, __kernel_size_t size)
 {
 	__kernel_size_t res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		"move\t$5, $0\n\t"
@@ -956,7 +986,7 @@ __strncpy_from_user(char *__to, const char __user *__from, long __len)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		"move\t$5, %2\n\t"
@@ -993,7 +1023,7 @@ strncpy_from_user(char *__to, const char __user *__from, long __len)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		"move\t$5, %2\n\t"
@@ -1012,7 +1042,7 @@ static inline long __strlen_user(const char __user *s)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		__MODULE_JAL(__strlen_user_nocheck_asm)
@@ -1042,7 +1072,7 @@ static inline long strlen_user(const char __user *s)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		__MODULE_JAL(__strlen_user_asm)
@@ -1059,7 +1089,7 @@ static inline long __strnlen_user(const char __user *s, long n)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		"move\t$5, %2\n\t"
@@ -1090,7 +1120,7 @@ static inline long strnlen_user(const char __user *s, long n)
 {
 	long res;
 
-	might_sleep();
+	might_fault();
 	__asm__ __volatile__(
 		"move\t$4, %1\n\t"
 		"move\t$5, %2\n\t"
diff --git a/arch/mips/kernel/cevt-smtc.c b/arch/mips/kernel/cevt-smtc.c
index 6d45e24db5b..df6f5bc6057 100644
--- a/arch/mips/kernel/cevt-smtc.c
+++ b/arch/mips/kernel/cevt-smtc.c
@@ -245,7 +245,7 @@ irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
 }
 
 
-int __cpuinit mips_clockevent_init(void)
+int __cpuinit smtc_clockevent_init(void)
 {
 	uint64_t mips_freq = mips_hpt_frequency;
 	unsigned int cpu = smp_processor_id();
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index c2c16ef9218..93cc672f452 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -405,8 +405,8 @@ EXPORT(sysn32_call_table)
 	PTR	sys_eventfd
 	PTR	sys_fallocate
 	PTR	sys_timerfd_create
-	PTR	sys_timerfd_gettime		/* 5285 */
-	PTR	sys_timerfd_settime
+	PTR	compat_sys_timerfd_gettime	/* 5285 */
+	PTR	compat_sys_timerfd_settime
 	PTR	sys_signalfd4
 	PTR	sys_eventfd2
 	PTR	sys_epoll_create1
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 002fac27021..a5598b2339d 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -525,8 +525,8 @@ sys_call_table:
 	PTR	sys_eventfd
 	PTR	sys32_fallocate			/* 4320 */
 	PTR	sys_timerfd_create
-	PTR	sys_timerfd_gettime
-	PTR	sys_timerfd_settime
+	PTR	compat_sys_timerfd_gettime
+	PTR	compat_sys_timerfd_settime
 	PTR	compat_sys_signalfd4
 	PTR	sys_eventfd2			/* 4325 */
 	PTR	sys_epoll_create1
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index bf4c4a979ab..67bd626942a 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -482,19 +482,19 @@ fault:
 		return;
 
 	die_if_kernel("Unhandled kernel unaligned access", regs);
-	send_sig(SIGSEGV, current, 1);
+	force_sig(SIGSEGV, current);
 
 	return;
 
 sigbus:
 	die_if_kernel("Unhandled kernel unaligned access", regs);
-	send_sig(SIGBUS, current, 1);
+	force_sig(SIGBUS, current);
 
 	return;
 
 sigill:
 	die_if_kernel("Unhandled kernel unaligned access or invalid instruction", regs);
-	send_sig(SIGILL, current, 1);
+	force_sig(SIGILL, current);
 }
 
 asmlinkage void do_ade(struct pt_regs *regs)
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
index 779821cd54a..3f69725556a 100644
--- a/arch/mips/lib/dump_tlb.c
+++ b/arch/mips/lib/dump_tlb.c
@@ -19,6 +19,15 @@ static inline const char *msk2str(unsigned int mask)
 	case PM_16K:	return "16kb";
 	case PM_64K:	return "64kb";
 	case PM_256K:	return "256kb";
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+	case PM_8K:	return "8kb";
+	case PM_32K:	return "32kb";
+	case PM_128K:	return "128kb";
+	case PM_512K:	return "512kb";
+	case PM_2M:	return "2Mb";
+	case PM_8M:	return "8Mb";
+	case PM_32M:	return "32Mb";
+#endif
 #ifndef CONFIG_CPU_VR41XX
 	case PM_1M:	return "1Mb";
 	case PM_4M:	return "4Mb";
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 58d9075e86f..171951d2305 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1041,7 +1041,7 @@ static void __cpuinit probe_pcache(void)
 
 	printk("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n",
 	       icache_size >> 10,
-	       cpu_has_vtag_icache ? "VIVT" : "VIPT",
+	       c->icache.flags & MIPS_CACHE_VTAG ? "VIVT" : "VIPT",
 	       way_string[c->icache.ways], c->icache.linesz);
 
 	printk("Primary data cache %ldkB, %s, %s, %s, linesize %d bytes\n",
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index bed56f1ac83..4fdb7f5216b 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -209,7 +209,7 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page,
 		unsigned long addr;
 
 		addr = (unsigned long) page_address(page) + offset;
-		dma_cache_wback_inv(addr, size);
+		__dma_sync(addr, size, direction);
 	}
 
 	return plat_map_dma_mem_page(dev, page) + offset;
@@ -217,23 +217,6 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page,
 
 EXPORT_SYMBOL(dma_map_page);
 
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	if (!plat_device_is_coherent(dev) && direction != DMA_TO_DEVICE) {
-		unsigned long addr;
-
-		addr = dma_addr_to_virt(dma_address);
-		dma_cache_wback_inv(addr, size);
-	}
-
-	plat_unmap_dma_mem(dev, dma_address);
-}
-
-EXPORT_SYMBOL(dma_unmap_page);
-
 void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
 	enum dma_data_direction direction)
 {
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 4481656d106..2b1309b2580 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -1,7 +1,12 @@
 #include <linux/module.h>
 #include <linux/highmem.h>
+#include <asm/fixmap.h>
 #include <asm/tlbflush.h>
 
+static pte_t *kmap_pte;
+
+unsigned long highstart_pfn, highend_pfn;
+
 void *__kmap(struct page *page)
 {
 	void *addr;
@@ -14,6 +19,7 @@ void *__kmap(struct page *page)
 
 	return addr;
 }
+EXPORT_SYMBOL(__kmap);
 
 void __kunmap(struct page *page)
 {
@@ -22,6 +28,7 @@ void __kunmap(struct page *page)
 		return;
 	kunmap_high(page);
 }
+EXPORT_SYMBOL(__kunmap);
 
 /*
  * kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -48,11 +55,12 @@ void *__kmap_atomic(struct page *page, enum km_type type)
 #ifdef CONFIG_DEBUG_HIGHMEM
 	BUG_ON(!pte_none(*(kmap_pte - idx)));
 #endif
-	set_pte(kmap_pte-idx, mk_pte(page, kmap_prot));
+	set_pte(kmap_pte-idx, mk_pte(page, PAGE_KERNEL));
 	local_flush_tlb_one((unsigned long)vaddr);
 
 	return (void*) vaddr;
 }
+EXPORT_SYMBOL(__kmap_atomic);
 
 void __kunmap_atomic(void *kvaddr, enum km_type type)
 {
@@ -77,6 +85,7 @@ void __kunmap_atomic(void *kvaddr, enum km_type type)
 
 	pagefault_enable();
 }
+EXPORT_SYMBOL(__kunmap_atomic);
 
 /*
  * This is the same as kmap_atomic() but can map memory that doesn't
@@ -92,7 +101,7 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
 	debug_kmap_atomic(type);
 	idx = type + KM_TYPE_NR*smp_processor_id();
 	vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
-	set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot));
+	set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
 	flush_tlb_one(vaddr);
 
 	return (void*) vaddr;
@@ -111,7 +120,11 @@ struct page *__kmap_atomic_to_page(void *ptr)
 	return pte_page(*pte);
 }
 
-EXPORT_SYMBOL(__kmap);
-EXPORT_SYMBOL(__kunmap);
-EXPORT_SYMBOL(__kmap_atomic);
-EXPORT_SYMBOL(__kunmap_atomic);
+void __init kmap_init(void)
+{
+	unsigned long kmap_vstart;
+
+	/* cache the first kmap pte */
+	kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN);
+	kmap_pte = kmap_get_fixmap_pte(kmap_vstart);
+}
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index d9348946a19..c5511294a9e 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -104,14 +104,6 @@ unsigned long setup_zero_pages(void)
 	return 1UL << order;
 }
 
-/*
- * These are almost like kmap_atomic / kunmap_atmic except they take an
- * additional address argument as the hint.
- */
-
-#define kmap_get_fixmap_pte(vaddr)					\
-	pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
-
 #ifdef CONFIG_MIPS_MT_SMTC
 static pte_t *kmap_coherent_pte;
 static void __init kmap_coherent_init(void)
@@ -264,24 +256,6 @@ void copy_from_user_page(struct vm_area_struct *vma,
 	}
 }
 
-#ifdef CONFIG_HIGHMEM
-unsigned long highstart_pfn, highend_pfn;
-
-pte_t *kmap_pte;
-pgprot_t kmap_prot;
-
-static void __init kmap_init(void)
-{
-	unsigned long kmap_vstart;
-
-	/* cache the first kmap pte */
-	kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN);
-	kmap_pte = kmap_get_fixmap_pte(kmap_vstart);
-
-	kmap_prot = PAGE_KERNEL;
-}
-#endif /* CONFIG_HIGHMEM */
-
 void __init fixrange_init(unsigned long start, unsigned long end,
 	pgd_t *pgd_base)
 {
diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c
index e3abfb2d7e8..de69bfbf506 100644
--- a/arch/mips/mm/sc-rm7k.c
+++ b/arch/mips/mm/sc-rm7k.c
@@ -29,7 +29,7 @@ extern unsigned long icache_way_size, dcache_way_size;
 
 #include <asm/r4kcache.h>
 
-int rm7k_tcache_enabled;
+static int rm7k_tcache_enabled;
 
 /*
  * Writeback and invalidate the primary cache dcache before DMA.
@@ -121,7 +121,7 @@ static void rm7k_sc_disable(void)
 	clear_c0_config(RM7K_CONF_SE);
 }
 
-struct bcache_ops rm7k_sc_ops = {
+static struct bcache_ops rm7k_sc_ops = {
 	.bc_enable = rm7k_sc_enable,
 	.bc_disable = rm7k_sc_disable,
 	.bc_wback_inv = rm7k_sc_wback_inv,
diff --git a/arch/mips/pmc-sierra/Kconfig b/arch/mips/pmc-sierra/Kconfig
index 90261b83db0..c139988bb85 100644
--- a/arch/mips/pmc-sierra/Kconfig
+++ b/arch/mips/pmc-sierra/Kconfig
@@ -36,18 +36,6 @@ config PMC_MSP7120_FPGA
 
 endchoice
 
-menu "Options for PMC-Sierra MSP chipsets"
-	depends on PMC_MSP
-
-config PMC_MSP_EMBEDDED_ROOTFS
-	bool "Root filesystem embedded in kernel image"
-	select MTD
-	select MTD_BLOCK
-	select MTD_PMC_MSP_RAMROOT
-	select MTD_RAM
-
-endmenu
-
 config HYPERTRANSPORT
 	bool "Hypertransport Support for PMC-Sierra Yosemite"
 	depends on PMC_YOSEMITE
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_prom.c b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
index e5bd5481d8d..c317a3623ce 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_prom.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_prom.c
@@ -40,12 +40,6 @@
 #include <linux/string.h>
 #include <linux/interrupt.h>
 #include <linux/mm.h>
-#ifdef CONFIG_CRAMFS
-#include <linux/cramfs_fs.h>
-#endif
-#ifdef CONFIG_SQUASHFS
-#include <linux/squashfs_fs.h>
-#endif
 
 #include <asm/addrspace.h>
 #include <asm/bootinfo.h>
@@ -435,10 +429,6 @@ struct prom_pmemblock *__init prom_getmdesc(void)
 	char		*str;
 	unsigned int	memsize;
 	unsigned int	heaptop;
-#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
-	void		*ramroot_start;
-	unsigned long	ramroot_size;
-#endif
 	int i;
 
 	str = prom_getenv(memsz_env);
@@ -506,19 +496,7 @@ struct prom_pmemblock *__init prom_getmdesc(void)
 	i++;			/* 3 */
 	mdesc[i].type = BOOT_MEM_RESERVED;
 	mdesc[i].base = CPHYSADDR((u32)_text);
-#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
-	if (get_ramroot(&ramroot_start, &ramroot_size)) {
-		/*
-		 * Rootfs in RAM -- follows kernel
-		 * Combine rootfs image with kernel block so a
-		 * page (4k) isn't wasted between memory blocks
-		 */
-		mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
-			(u32)ramroot_start + ramroot_size)) - mdesc[i].base;
-	} else
-#endif
-		mdesc[i].size = CPHYSADDR(PAGE_ALIGN(
-			(u32)_end)) - mdesc[i].base;
+	mdesc[i].size = CPHYSADDR(PAGE_ALIGN((u32)_end)) - mdesc[i].base;
 
 	/* Remainder of RAM -- under memsize */
 	i++;			/* 5 */
@@ -528,39 +506,3 @@ struct prom_pmemblock *__init prom_getmdesc(void)
 
 	return &mdesc[0];
 }
-
-/* rootfs functions */
-#ifdef CONFIG_MTD_PMC_MSP_RAMROOT
-bool get_ramroot(void **start, unsigned long *size)
-{
-	extern char _end[];
-
-	/* Check for start following the end of the kernel */
-	void *check_start = (void *)_end;
-
-	/* Check for supported rootfs types */
-#ifdef CONFIG_CRAMFS
-	if (*(__u32 *)check_start == CRAMFS_MAGIC) {
-		/* Get CRAMFS size */
-		*start = check_start;
-		*size = PAGE_ALIGN(((struct cramfs_super *)
-				   check_start)->size);
-
-		return true;
-	}
-#endif
-#ifdef CONFIG_SQUASHFS
-	if (*((unsigned int *)check_start) == SQUASHFS_MAGIC) {
-		/* Get SQUASHFS size */
-		*start = check_start;
-		*size = PAGE_ALIGN(((struct squashfs_super_block *)
-				   check_start)->bytes_used);
-
-		return true;
-	}
-#endif
-
-	return false;
-}
-EXPORT_SYMBOL(get_ramroot);
-#endif
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_setup.c b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
index c93675615f5..a54e85b3cf2 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_setup.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_setup.c
@@ -21,7 +21,6 @@
 
 #if defined(CONFIG_PMC_MSP7120_GW)
 #include <msp_regops.h>
-#include <msp_gpio.h>
 #define MSP_BOARD_RESET_GPIO	9
 #endif
 
@@ -88,11 +87,8 @@ void msp7120_reset(void)
 	 * as GPIO char driver may not be enabled and it would look up
 	 * data inRAM!
 	 */
-	set_value_reg32(GPIO_CFG3_REG,
-			basic_mode_mask(MSP_BOARD_RESET_GPIO),
-			basic_mode(MSP_GPIO_OUTPUT, MSP_BOARD_RESET_GPIO));
-	set_reg32(GPIO_DATA3_REG,
-			basic_data_mask(MSP_BOARD_RESET_GPIO));
+	set_value_reg32(GPIO_CFG3_REG, 0xf000, 0x8000);
+	set_reg32(GPIO_DATA3_REG, 8);
 
 	/*
 	 * In case GPIO9 doesn't reset the board (jumper configurable!)
diff --git a/arch/mips/pmc-sierra/msp71xx/msp_time.c b/arch/mips/pmc-sierra/msp71xx/msp_time.c
index 7cfeda5a651..cca64e15f57 100644
--- a/arch/mips/pmc-sierra/msp71xx/msp_time.c
+++ b/arch/mips/pmc-sierra/msp71xx/msp_time.c
@@ -81,10 +81,7 @@ void __init plat_time_init(void)
 	mips_hpt_frequency = cpu_rate/2;
 }
 
-void __init plat_timer_setup(struct irqaction *irq)
+unsigned int __init get_c0_compare_int(void)
 {
-#ifdef CONFIG_IRQ_MSP_CIC
-	/* we are using the vpe0 counter for timer interrupts */
-	setup_irq(MSP_INT_VPE0_TIMER, irq);
-#endif
+	return MSP_INT_VPE0_TIMER;
 }
diff --git a/arch/mips/sgi-ip32/ip32-berr.c b/arch/mips/sgi-ip32/ip32-berr.c
index a278e918a01..afc1cadbba3 100644
--- a/arch/mips/sgi-ip32/ip32-berr.c
+++ b/arch/mips/sgi-ip32/ip32-berr.c
@@ -16,7 +16,7 @@
 #include <asm/ptrace.h>
 #include <asm/tlbdebug.h>
 
-int ip32_be_handler(struct pt_regs *regs, int is_fixup)
+static int ip32_be_handler(struct pt_regs *regs, int is_fixup)
 {
 	int data = regs->cp0_cause & 4;
 
diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c
index 83a0b3c359d..5c2bf111ca6 100644
--- a/arch/mips/sgi-ip32/ip32-irq.c
+++ b/arch/mips/sgi-ip32/ip32-irq.c
@@ -112,13 +112,13 @@ static void inline flush_mace_bus(void)
 extern irqreturn_t crime_memerr_intr(int irq, void *dev_id);
 extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id);
 
-struct irqaction memerr_irq = {
+static struct irqaction memerr_irq = {
 	.handler = crime_memerr_intr,
 	.flags = IRQF_DISABLED,
 	.name = "CRIME memory error",
 };
 
-struct irqaction cpuerr_irq = {
+static struct irqaction cpuerr_irq = {
 	.handler = crime_cpuerr_intr,
 	.flags = IRQF_DISABLED,
 	.name = "CRIME CPU error",
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index 352352b3cb2..c147c4b35d3 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -113,7 +113,6 @@ static void bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
 {
 	int i = 0, old_cpu, cpu, int_on, k;
 	u64 cur_ints;
-	struct irq_desc *desc = irq_desc + irq;
 	unsigned long flags;
 	unsigned int irq_dirty;
 
@@ -127,8 +126,7 @@ static void bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
 	cpu = cpu_logical_map(i);
 
 	/* Protect against other affinity changers and IMR manipulation */
-	spin_lock_irqsave(&desc->lock, flags);
-	spin_lock(&bcm1480_imr_lock);
+	spin_lock_irqsave(&bcm1480_imr_lock, flags);
 
 	/* Swizzle each CPU's IMR (but leave the IP selection alone) */
 	old_cpu = bcm1480_irq_owner[irq];
@@ -153,8 +151,7 @@ static void bcm1480_set_affinity(unsigned int irq, const struct cpumask *mask)
 			____raw_writeq(cur_ints, IOADDR(A_BCM1480_IMR_MAPPER(cpu) + R_BCM1480_IMR_INTERRUPT_MASK_H + (k*BCM1480_IMR_HL_SPACING)));
 		}
 	}
-	spin_unlock(&bcm1480_imr_lock);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	spin_unlock_irqrestore(&bcm1480_imr_lock, flags);
 }
 #endif
 
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index c08ff582da6..38cb998ade2 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -107,7 +107,6 @@ static void sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
 {
 	int i = 0, old_cpu, cpu, int_on;
 	u64 cur_ints;
-	struct irq_desc *desc = irq_desc + irq;
 	unsigned long flags;
 
 	i = cpumask_first(mask);
@@ -121,8 +120,7 @@ static void sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
 	cpu = cpu_logical_map(i);
 
 	/* Protect against other affinity changers and IMR manipulation */
-	spin_lock_irqsave(&desc->lock, flags);
-	spin_lock(&sb1250_imr_lock);
+	spin_lock_irqsave(&sb1250_imr_lock, flags);
 
 	/* Swizzle each CPU's IMR (but leave the IP selection alone) */
 	old_cpu = sb1250_irq_owner[irq];
@@ -144,8 +142,7 @@ static void sb1250_set_affinity(unsigned int irq, const struct cpumask *mask)
 		____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
 					R_IMR_INTERRUPT_MASK));
 	}
-	spin_unlock(&sb1250_imr_lock);
-	spin_unlock_irqrestore(&desc->lock, flags);
+	spin_unlock_irqrestore(&sb1250_imr_lock, flags);
 }
 #endif
 
diff --git a/arch/mips/txx9/generic/setup_tx4927.c b/arch/mips/txx9/generic/setup_tx4927.c
index 914e93c6263..1093549df1a 100644
--- a/arch/mips/txx9/generic/setup_tx4927.c
+++ b/arch/mips/txx9/generic/setup_tx4927.c
@@ -88,7 +88,7 @@ void __init tx4927_setup(void)
 {
 	int i;
 	__u32 divmode;
-	int cpuclk = 0;
+	unsigned int cpuclk = 0;
 	u64 ccfg;
 
 	txx9_reg_res_init(TX4927_REV_PCODE(), TX4927_REG_BASE,
diff --git a/arch/mips/txx9/generic/setup_tx4938.c b/arch/mips/txx9/generic/setup_tx4938.c
index f0844f891f0..3925219b897 100644
--- a/arch/mips/txx9/generic/setup_tx4938.c
+++ b/arch/mips/txx9/generic/setup_tx4938.c
@@ -93,7 +93,7 @@ void __init tx4938_setup(void)
 {
 	int i;
 	__u32 divmode;
-	int cpuclk = 0;
+	unsigned int cpuclk = 0;
 	u64 ccfg;
 
 	txx9_reg_res_init(TX4938_REV_PCODE(), TX4938_REG_BASE,
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
index 7a25b573e9b..c2bf150c883 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -114,7 +114,7 @@ void __init tx4939_setup(void)
 	int i;
 	__u32 divmode;
 	__u64 pcfg;
-	int cpuclk = 0;
+	unsigned int cpuclk = 0;
 
 	txx9_reg_res_init(TX4939_REV_PCODE(), TX4939_REG_BASE,
 			  TX4939_REG_SIZE);
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index 011e1e332f4..4199c6fd4d1 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -536,7 +536,7 @@ static void __init rbtx4939_setup(void)
 }
 
 struct txx9_board_vec rbtx4939_vec __initdata = {
-	.system = "Tothiba RBTX4939",
+	.system = "Toshiba RBTX4939",
 	.prom_init = rbtx4939_prom_init,
 	.mem_setup = rbtx4939_setup,
 	.irq_setup = rbtx4939_irq_setup,