Merge branch 'master' into for-2.6.33

16 files changed, 72 insertions, 218 deletions

diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index d16afddb09a9..664ba53dc32a 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -3,6 +3,7 @@
 
 #include <asm/scatterlist.h>
 #include <asm/cache.h>
+#include <asm-generic/dma-coherent.h>
 
 void *dma_alloc_noncoherent(struct device *dev, size_t size,
 			   dma_addr_t *dma_handle, gfp_t flag);
@@ -73,14 +74,4 @@ extern int dma_is_consistent(struct device *dev, dma_addr_t dma_addr);
 extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 	       enum dma_data_direction direction);
 
-#if 0
-#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-
-extern int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
-	dma_addr_t device_addr, size_t size, int flags);
-extern void dma_release_declared_memory(struct device *dev);
-extern void * dma_mark_declared_memory_occupied(struct device *dev,
-	dma_addr_t device_addr, size_t size);
-#endif
-
 #endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/mips/include/asm/fixmap.h b/arch/mips/include/asm/fixmap.h
index efeddc8db8b1..0b89b83e2055 100644
--- a/arch/mips/include/asm/fixmap.h
+++ b/arch/mips/include/asm/fixmap.h
@@ -48,9 +48,9 @@ enum fixed_addresses {
 #define FIX_N_COLOURS 8
 	FIX_CMAP_BEGIN,
 #ifdef CONFIG_MIPS_MT_SMTC
-	FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS),
+	FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS * 2),
 #else
-	FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
+	FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * 2),
 #endif
 #ifdef CONFIG_HIGHMEM
 	/* reserved pte's for temporary kernel mappings */
diff --git a/arch/mips/include/asm/gcmpregs.h b/arch/mips/include/asm/gcmpregs.h
index 36fd969d64d6..c0cf76a2ca89 100644
--- a/arch/mips/include/asm/gcmpregs.h
+++ b/arch/mips/include/asm/gcmpregs.h
@@ -19,15 +19,20 @@
 #define GCMP_GDB_OFS		0x8000 /* Global Debug Block */
 
 /* Offsets to individual GCMP registers from GCMP base */
-#define GCMPOFS(block, tag, reg)	(GCMP_##block##_OFS + GCMP_##tag##_##reg##_OFS)
+#define GCMPOFS(block, tag, reg)	\
+	(GCMP_##block##_OFS + GCMP_##tag##_##reg##_OFS)
+#define GCMPOFSn(block, tag, reg, n) \
+	(GCMP_##block##_OFS + GCMP_##tag##_##reg##_OFS(n))
 
 #define GCMPGCBOFS(reg)		GCMPOFS(GCB, GCB, reg)
+#define GCMPGCBOFSn(reg, n)	GCMPOFSn(GCB, GCB, reg, n)
 #define GCMPCLCBOFS(reg)	GCMPOFS(CLCB, CCB, reg)
 #define GCMPCOCBOFS(reg)	GCMPOFS(COCB, CCB, reg)
 #define GCMPGDBOFS(reg)		GCMPOFS(GDB, GDB, reg)
 
 /* GCMP register access */
 #define GCMPGCB(reg)			REGP(_gcmp_base, GCMPGCBOFS(reg))
+#define GCMPGCBn(reg, n)               REGP(_gcmp_base, GCMPGCBOFSn(reg, n))
 #define GCMPCLCB(reg)			REGP(_gcmp_base, GCMPCLCBOFS(reg))
 #define GCMPCOCB(reg)			REGP(_gcmp_base, GCMPCOCBOFS(reg))
 #define GCMPGDB(reg)			REGP(_gcmp_base, GCMPGDBOFS(reg))
@@ -49,10 +54,10 @@
 #define  GCMP_GCB_GCMPB_GCMPBASE_MSK	GCMPGCBMSK(GCMPB_GCMPBASE, 17)
 #define  GCMP_GCB_GCMPB_CMDEFTGT_SHF	0
 #define  GCMP_GCB_GCMPB_CMDEFTGT_MSK	GCMPGCBMSK(GCMPB_CMDEFTGT, 2)
-#define  GCMP_GCB_GCMPB_CMDEFTGT_MEM	0
-#define  GCMP_GCB_GCMPB_CMDEFTGT_MEM1	1
-#define  GCMP_GCB_GCMPB_CMDEFTGT_IOCU1 2
-#define  GCMP_GCB_GCMPB_CMDEFTGT_IOCU2 3
+#define  GCMP_GCB_GCMPB_CMDEFTGT_DISABLED	0
+#define  GCMP_GCB_GCMPB_CMDEFTGT_MEM		1
+#define  GCMP_GCB_GCMPB_CMDEFTGT_IOCU1		2
+#define  GCMP_GCB_GCMPB_CMDEFTGT_IOCU2		3
 #define GCMP_GCB_CCMC_OFS		0x0010	/* Global CM Control */
 #define GCMP_GCB_GCSRAP_OFS		0x0020	/* Global CSR Access Privilege */
 #define  GCMP_GCB_GCSRAP_CMACCESS_SHF	0
@@ -115,5 +120,6 @@
 #define GCMP_CCB_DBGGROUP_OFS		0x0100		/* DebugBreak Group */
 
 extern int __init gcmp_probe(unsigned long, unsigned long);
-
+extern int __init gcmp_niocu(void);
+extern void __init gcmp_setregion(int, unsigned long, unsigned long, int);
 #endif /* _ASM_GCMPREGS_H */
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h
index a8f57341f123..9b9436a4d816 100644
--- a/arch/mips/include/asm/gic.h
+++ b/arch/mips/include/asm/gic.h
@@ -12,7 +12,6 @@
 #define _ASM_GICREGS_H
 
 #undef	GICISBYTELITTLEENDIAN
-#define GICISWORDLITTLEENDIAN
 
 /* Constants */
 #define GIC_POL_POS			1
@@ -20,11 +19,7 @@
 #define GIC_TRIG_EDGE			1
 #define GIC_TRIG_LEVEL			0
 
-#ifdef CONFIG_SMP
 #define GIC_NUM_INTRS			(24 + NR_CPUS * 2)
-#else
-#define GIC_NUM_INTRS			32
-#endif
 
 #define MSK(n) ((1 << (n)) - 1)
 #define REG32(addr)		(*(volatile unsigned int *) (addr))
@@ -70,13 +65,13 @@
 #define USM_VISIBLE_SECTION_SIZE	0x10000
 
 /* Register Map for Shared Section */
-#if defined(CONFIG_CPU_LITTLE_ENDIAN) || defined(GICISWORDLITTLEENDIAN)
 
 #define	GIC_SH_CONFIG_OFS		0x0000
 
 /* Shared Global Counter */
 #define GIC_SH_COUNTER_31_00_OFS	0x0010
 #define GIC_SH_COUNTER_63_32_OFS	0x0014
+#define GIC_SH_REVISIONID_OFS		0x0020
 
 /* Interrupt Polarity */
 #define GIC_SH_POL_31_0_OFS		0x0100
@@ -164,24 +159,31 @@
 	(GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + (((vpe) / 32) * 4))
 #define GIC_SH_MAP_TO_VPE_REG_BIT(vpe)	(1 << ((vpe) % 32))
 
+/* Convert an interrupt number to a byte offset/bit for multi-word registers */
+#define GIC_INTR_OFS(intr) (((intr) / 32)*4)
+#define GIC_INTR_BIT(intr) ((intr) % 32)
+
 /* Polarity : Reset Value is always 0 */
 #define GIC_SH_SET_POLARITY_OFS		0x0100
 #define GIC_SET_POLARITY(intr, pol) \
-	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + (((intr) / 32) * 4)), (pol) << ((intr) % 32))
+	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
+		GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))
 
 /* Triggering : Reset Value is always 0 */
 #define GIC_SH_SET_TRIGGER_OFS		0x0180
 #define GIC_SET_TRIGGER(intr, trig) \
-	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + (((intr) / 32) * 4)), (trig) << ((intr) % 32))
+	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
+		GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))
 
 /* Mask manipulation */
 #define GIC_SH_SMASK_OFS		0x0380
-#define GIC_SET_INTR_MASK(intr, val) \
-	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + (((intr) / 32) * 4)), ((val) << ((intr) % 32)))
-
+#define GIC_SET_INTR_MASK(intr) \
+	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + \
+		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
 #define GIC_SH_RMASK_OFS		0x0300
-#define GIC_CLR_INTR_MASK(intr, val) \
-	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + (((intr) / 32) * 4)), ((val) << ((intr) % 32)))
+#define GIC_CLR_INTR_MASK(intr) \
+	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + \
+		GIC_INTR_OFS(intr)), 1 << GIC_INTR_BIT(intr))
 
 /* Register Map for Local Section */
 #define GIC_VPE_CTL_OFS			0x0000
@@ -219,161 +221,6 @@
 #define GIC_UMV_SH_COUNTER_31_00_OFS	0x0000
 #define GIC_UMV_SH_COUNTER_63_32_OFS	0x0004
 
-#else /* CONFIG_CPU_BIG_ENDIAN */
-
-#define	GIC_SH_CONFIG_OFS		0x0000
-
-/* Shared Global Counter */
-#define GIC_SH_COUNTER_31_00_OFS	0x0014
-#define GIC_SH_COUNTER_63_32_OFS	0x0010
-
-/* Interrupt Polarity */
-#define GIC_SH_POL_31_0_OFS		0x0104
-#define GIC_SH_POL_63_32_OFS		0x0100
-#define GIC_SH_POL_95_64_OFS		0x010c
-#define GIC_SH_POL_127_96_OFS		0x0108
-#define GIC_SH_POL_159_128_OFS		0x0114
-#define GIC_SH_POL_191_160_OFS		0x0110
-#define GIC_SH_POL_223_192_OFS		0x011c
-#define GIC_SH_POL_255_224_OFS		0x0118
-
-/* Edge/Level Triggering */
-#define GIC_SH_TRIG_31_0_OFS		0x0184
-#define GIC_SH_TRIG_63_32_OFS		0x0180
-#define GIC_SH_TRIG_95_64_OFS		0x018c
-#define GIC_SH_TRIG_127_96_OFS		0x0188
-#define GIC_SH_TRIG_159_128_OFS		0x0194
-#define GIC_SH_TRIG_191_160_OFS		0x0190
-#define GIC_SH_TRIG_223_192_OFS		0x019c
-#define GIC_SH_TRIG_255_224_OFS		0x0198
-
-/* Dual Edge Triggering */
-#define GIC_SH_DUAL_31_0_OFS		0x0204
-#define GIC_SH_DUAL_63_32_OFS		0x0200
-#define GIC_SH_DUAL_95_64_OFS		0x020c
-#define GIC_SH_DUAL_127_96_OFS		0x0208
-#define GIC_SH_DUAL_159_128_OFS		0x0214
-#define GIC_SH_DUAL_191_160_OFS		0x0210
-#define GIC_SH_DUAL_223_192_OFS		0x021c
-#define GIC_SH_DUAL_255_224_OFS		0x0218
-
-/* Set/Clear corresponding bit in Edge Detect Register */
-#define GIC_SH_WEDGE_OFS		0x0280
-
-/* Reset Mask - Disables Interrupt */
-#define GIC_SH_RMASK_31_0_OFS		0x0304
-#define GIC_SH_RMASK_63_32_OFS		0x0300
-#define GIC_SH_RMASK_95_64_OFS		0x030c
-#define GIC_SH_RMASK_127_96_OFS		0x0308
-#define GIC_SH_RMASK_159_128_OFS	0x0314
-#define GIC_SH_RMASK_191_160_OFS	0x0310
-#define GIC_SH_RMASK_223_192_OFS	0x031c
-#define GIC_SH_RMASK_255_224_OFS	0x0318
-
-/* Set Mask (WO) - Enables Interrupt */
-#define GIC_SH_SMASK_31_0_OFS		0x0384
-#define GIC_SH_SMASK_63_32_OFS		0x0380
-#define GIC_SH_SMASK_95_64_OFS		0x038c
-#define GIC_SH_SMASK_127_96_OFS		0x0388
-#define GIC_SH_SMASK_159_128_OFS	0x0394
-#define GIC_SH_SMASK_191_160_OFS	0x0390
-#define GIC_SH_SMASK_223_192_OFS	0x039c
-#define GIC_SH_SMASK_255_224_OFS	0x0398
-
-/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
-#define GIC_SH_MASK_31_0_OFS		0x0404
-#define GIC_SH_MASK_63_32_OFS		0x0400
-#define GIC_SH_MASK_95_64_OFS		0x040c
-#define GIC_SH_MASK_127_96_OFS		0x0408
-#define GIC_SH_MASK_159_128_OFS		0x0414
-#define GIC_SH_MASK_191_160_OFS		0x0410
-#define GIC_SH_MASK_223_192_OFS		0x041c
-#define GIC_SH_MASK_255_224_OFS		0x0418
-
-/* Pending Global Interrupts (RO) */
-#define GIC_SH_PEND_31_0_OFS		0x0484
-#define GIC_SH_PEND_63_32_OFS		0x0480
-#define GIC_SH_PEND_95_64_OFS		0x048c
-#define GIC_SH_PEND_127_96_OFS		0x0488
-#define GIC_SH_PEND_159_128_OFS		0x0494
-#define GIC_SH_PEND_191_160_OFS		0x0490
-#define GIC_SH_PEND_223_192_OFS		0x049c
-#define GIC_SH_PEND_255_224_OFS		0x0498
-
-#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS	0x0500
-
-/* Maps Interrupt X to a Pin */
-#define GIC_SH_MAP_TO_PIN(intr) \
-	(GIC_SH_INTR_MAP_TO_PIN_BASE_OFS + (4 * intr))
-
-#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS	0x2004
-
-/*
- * Maps Interrupt X to a VPE.  This is more complex than the LE case, as
- * odd and even registers need to be transposed.  It does work - trust me!
- */
-#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
-	(GIC_SH_INTR_MAP_TO_VPE_BASE_OFS + (32 * (intr)) + \
-	(((((vpe) / 32) ^ 1) - 1) * 4))
-#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe)	(1 << ((vpe) % 32))
-
-/* Polarity */
-#define GIC_SH_SET_POLARITY_OFS		0x0100
-#define GIC_SET_POLARITY(intr, pol) \
-	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), (pol) << ((intr) % 32))
-
-/* Triggering */
-#define GIC_SH_SET_TRIGGER_OFS		0x0180
-#define GIC_SET_TRIGGER(intr, trig) \
-	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), (trig) << ((intr) % 32))
-
-/* Mask manipulation */
-#define GIC_SH_SMASK_OFS		0x0380
-#define GIC_SET_INTR_MASK(intr, val) \
-	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_SMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32)))
-
-#define GIC_SH_RMASK_OFS		0x0300
-#define GIC_CLR_INTR_MASK(intr, val) \
-	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_RMASK_OFS + 4 + (((((intr) / 32) ^ 1) - 1) * 4)), ((val) << ((intr) % 32)))
-
-/* Register Map for Local Section */
-#define GIC_VPE_CTL_OFS			0x0000
-#define GIC_VPE_PEND_OFS		0x0004
-#define GIC_VPE_MASK_OFS		0x0008
-#define GIC_VPE_RMASK_OFS		0x000c
-#define GIC_VPE_SMASK_OFS		0x0010
-#define GIC_VPE_WD_MAP_OFS		0x0040
-#define GIC_VPE_COMPARE_MAP_OFS		0x0044
-#define GIC_VPE_TIMER_MAP_OFS		0x0048
-#define GIC_VPE_PERFCTR_MAP_OFS		0x0050
-#define GIC_VPE_SWINT0_MAP_OFS		0x0054
-#define GIC_VPE_SWINT1_MAP_OFS		0x0058
-#define GIC_VPE_OTHER_ADDR_OFS		0x0080
-#define GIC_VPE_WD_CONFIG0_OFS		0x0090
-#define GIC_VPE_WD_COUNT0_OFS		0x0094
-#define GIC_VPE_WD_INITIAL0_OFS		0x0098
-#define GIC_VPE_COMPARE_LO_OFS		0x00a4
-#define GIC_VPE_COMPARE_HI_OFS		0x00a0
-
-#define GIC_VPE_EIC_SHADOW_SET_BASE	0x0100
-#define GIC_VPE_EIC_SS(intr) \
-	(GIC_EIC_SHADOW_SET_BASE + (4 * intr))
-
-#define GIC_VPE_EIC_VEC_BASE		0x0800
-#define GIC_VPE_EIC_VEC(intr) \
-	(GIC_VPE_EIC_VEC_BASE + (4 * intr))
-
-#define GIC_VPE_TENABLE_NMI_OFS		0x1000
-#define GIC_VPE_TENABLE_YQ_OFS		0x1004
-#define GIC_VPE_TENABLE_INT_31_0_OFS	0x1080
-#define GIC_VPE_TENABLE_INT_63_32_OFS	0x1084
-
-/* User Mode Visible Section Register Map */
-#define GIC_UMV_SH_COUNTER_31_00_OFS	0x0004
-#define GIC_UMV_SH_COUNTER_63_32_OFS	0x0000
-
-#endif /* !LE */
-
 /* Masks */
 #define GIC_SH_CONFIG_COUNTSTOP_SHF	28
 #define GIC_SH_CONFIG_COUNTSTOP_MSK	(MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
@@ -473,12 +320,13 @@ struct gic_intrmask_regs {
  * in building ipi_map.
  */
 struct gic_intr_map {
-	unsigned int intrnum; 	/* Ext Intr Num 	*/
 	unsigned int cpunum;	/* Directed to this CPU */
 	unsigned int pin;	/* Directed to this Pin */
 	unsigned int polarity;	/* Polarity : +/-	*/
 	unsigned int trigtype;	/* Trigger  : Edge/Levl */
-	unsigned int ipiflag;	/* Is used for IPI ?	*/
+	unsigned int flags;	/* Misc flags	*/
+#define GIC_FLAG_IPI           0x01
+#define GIC_FLAG_TRANSPARENT   0x02
 };
 
 extern void gic_init(unsigned long gic_base_addr,
diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h
index de71694614de..21cbbc706448 100644
--- a/arch/mips/include/asm/mach-ar7/ar7.h
+++ b/arch/mips/include/asm/mach-ar7/ar7.h
@@ -78,6 +78,9 @@
 #define AR7_REF_CLOCK	25000000
 #define AR7_XTAL_CLOCK	24000000
 
+/* DCL */
+#define AR7_WDT_HW_ENA	0x10
+
 struct plat_cpmac_data {
 	int reset_bit;
 	int power_bit;
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
index feea00148b5d..91595fa89034 100644
--- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h
@@ -104,6 +104,8 @@ static inline int au1100_gpio2_to_irq(int gpio)
 
 	if ((gpio >= 8) && (gpio <= 15))
 		return MAKE_IRQ(0, 29);		/* shared GPIO208_215 */
+
+	return -ENXIO;
 }
 
 #ifdef CONFIG_SOC_AU1100
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
deleted file mode 100644
index bf348f573bbc..000000000000
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef BCM63XX_DEV_UART_H_
-#define BCM63XX_DEV_UART_H_
-
-int bcm63xx_uart_register(void);
-
-#endif /* BCM63XX_DEV_UART_H_ */
diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index f6837422fe65..09a59bcc1b07 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -44,8 +44,8 @@ extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
 	.busy_factor		= 32,			\
 	.imbalance_pct		= 125,			\
 	.cache_nice_tries	= 1,			\
-	.flags			= SD_LOAD_BALANCE	\
-				| SD_BALANCE_EXEC	\
+	.flags			= SD_LOAD_BALANCE |	\
+				  SD_BALANCE_EXEC,	\
 	.last_balance		= jiffies,		\
 	.balance_interval	= 1,			\
 	.nr_balance_failed	= 0,			\
diff --git a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
index ce5b6e270e3f..9947e57c91de 100644
--- a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h
@@ -29,7 +29,7 @@
 #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_dc_aliases	(PAGE_SIZE < 0x4000)
 #define cpu_has_divec		0
 #define cpu_has_dsp		0
 #define cpu_has_ejtag		0
@@ -54,6 +54,5 @@
 #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_LOONGSON_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mman.h b/arch/mips/include/asm/mman.h
index a2250f390a29..c892bfb3e2c1 100644
--- a/arch/mips/include/asm/mman.h
+++ b/arch/mips/include/asm/mman.h
@@ -75,6 +75,7 @@
 
 #define MADV_MERGEABLE   12		/* KSM may merge identical pages */
 #define MADV_UNMERGEABLE 13		/* KSM may not merge identical pages */
+#define MADV_HWPOISON    100		/* poison a page for testing */
 
 /* compatibility flags */
 #define MAP_FILE	0
diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index d9743536a621..6083db586500 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -16,6 +16,7 @@
 #include <linux/smp.h>
 #include <linux/slab.h>
 #include <asm/cacheflush.h>
+#include <asm/hazards.h>
 #include <asm/tlbflush.h>
 #ifdef CONFIG_MIPS_MT_SMTC
 #include <asm/mipsmtregs.h>
@@ -36,11 +37,13 @@ extern unsigned long pgd_current[];
 #ifdef CONFIG_32BIT
 #define TLBMISS_HANDLER_SETUP()						\
 	write_c0_context((unsigned long) smp_processor_id() << 25);	\
+	back_to_back_c0_hazard();					\
 	TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
 #endif
 #ifdef CONFIG_64BIT
 #define TLBMISS_HANDLER_SETUP()						\
 	write_c0_context((unsigned long) smp_processor_id() << 26);	\
+	back_to_back_c0_hazard();					\
 	TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
 #endif
 
@@ -165,12 +168,12 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	 * having ASID_MASK smaller than the hardware maximum,
 	 * make sure no "soft" bits become "hard"...
 	 */
-	write_c0_entryhi((read_c0_entryhi() & ~HW_ASID_MASK)
-			| (cpu_context(cpu, next) & ASID_MASK));
+	write_c0_entryhi((read_c0_entryhi() & ~HW_ASID_MASK) |
+			 cpu_asid(cpu, next));
 	ehb(); /* Make sure it propagates to TCStatus */
 	evpe(mtflags);
 #else
-	write_c0_entryhi(cpu_context(cpu, next));
+	write_c0_entryhi(cpu_asid(cpu, next));
 #endif /* CONFIG_MIPS_MT_SMTC */
 	TLBMISS_HANDLER_SETUP_PGD(next->pgd);
 
@@ -226,11 +229,11 @@ activate_mm(struct mm_struct *prev, struct mm_struct *next)
 	}
 	/* See comments for similar code above */
 	write_c0_entryhi((read_c0_entryhi() & ~HW_ASID_MASK) |
-	                 (cpu_context(cpu, next) & ASID_MASK));
+	                 cpu_asid(cpu, next));
 	ehb(); /* Make sure it propagates to TCStatus */
 	evpe(mtflags);
 #else
-	write_c0_entryhi(cpu_context(cpu, next));
+	write_c0_entryhi(cpu_asid(cpu, next));
 #endif /* CONFIG_MIPS_MT_SMTC */
 	TLBMISS_HANDLER_SETUP_PGD(next->pgd);
 
diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index e600cedda976..50511aac04e9 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -1,7 +1,7 @@
 #ifndef _MIPS_SETUP_H
 #define _MIPS_SETUP_H
 
-#define COMMAND_LINE_SIZE	256
+#define COMMAND_LINE_SIZE	4096
 
 #ifdef  __KERNEL__
 extern void setup_early_printk(void);
diff --git a/arch/mips/include/asm/smtc_ipi.h b/arch/mips/include/asm/smtc_ipi.h
index 8ce517574340..15278dbd7e79 100644
--- a/arch/mips/include/asm/smtc_ipi.h
+++ b/arch/mips/include/asm/smtc_ipi.h
@@ -45,6 +45,7 @@ struct smtc_ipi_q {
 	spinlock_t lock;
 	struct smtc_ipi *tail;
 	int depth;
+	int resched_flag;	/* reschedule already queued */
 };
 
 static inline void smtc_ipi_nq(struct smtc_ipi_q *q, struct smtc_ipi *p)
diff --git a/arch/mips/include/asm/spram.h b/arch/mips/include/asm/spram.h
new file mode 100644
index 000000000000..0b89006e4907
--- /dev/null
+++ b/arch/mips/include/asm/spram.h
@@ -0,0 +1,10 @@
+#ifndef _MIPS_SPRAM_H
+#define _MIPS_SPRAM_H
+
+#ifdef CONFIG_CPU_MIPSR2
+extern __init void spram_config(void);
+#else
+static inline void spram_config(void) { };
+#endif /* CONFIG_CPU_MIPSR2 */
+
+#endif /* _MIPS_SPRAM_H */
diff --git a/arch/mips/include/asm/system.h b/arch/mips/include/asm/system.h
index fcf5f98d90cc..83b5509e09e8 100644
--- a/arch/mips/include/asm/system.h
+++ b/arch/mips/include/asm/system.h
@@ -12,6 +12,7 @@
 #ifndef _ASM_SYSTEM_H
 #define _ASM_SYSTEM_H
 
+#include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/irqflags.h>
 
@@ -193,10 +194,6 @@ extern __u64 __xchg_u64_unsupported_on_32bit_kernels(volatile __u64 * m, __u64 v
 #define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
 #endif
 
-/* This function doesn't exist, so you'll get a linker error
-   if something tries to do an invalid xchg().  */
-extern void __xchg_called_with_bad_pointer(void);
-
 static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
 {
 	switch (size) {
@@ -205,11 +202,17 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 	case 8:
 		return __xchg_u64(ptr, x);
 	}
-	__xchg_called_with_bad_pointer();
+
 	return x;
 }
 
-#define xchg(ptr, x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+#define xchg(ptr, x)							\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) & ~0xc);				\
+									\
+	((__typeof__(*(ptr)))						\
+		__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))));	\
+})
 
 extern void set_handler(unsigned long offset, void *addr, unsigned long len);
 extern void set_uncached_handler(unsigned long offset, void *addr, unsigned long len);
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 01cc1630b66c..845da2107ed1 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -86,14 +86,7 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
 
 #ifdef CONFIG_DEBUG_STACK_USAGE
-#define alloc_thread_info(tsk)					\
-({								\
-	struct thread_info *ret;				\
-								\
-	ret = kzalloc(THREAD_SIZE, GFP_KERNEL);			\
-								\
-	ret;							\
-})
+#define alloc_thread_info(tsk) kzalloc(THREAD_SIZE, GFP_KERNEL)
 #else
 #define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
 #endif