Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (31 commits)
  MIPS: Close races in TLB modify handlers.
  MIPS: Add uasm UASM_i_SRL_SAFE macro.
  MIPS: RB532: Use hex_to_bin()
  MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platforms
  MIPS: PowerTV: Provide cpu-feature-overrides.h
  MIPS: Remove pointless return statement from empty void functions.
  MIPS: Limit fixrange_init() to the FIXMAP region
  MIPS: Install handlers for software IRQs
  MIPS: Move FIXADDR_TOP into spaces.h
  MIPS: Add SYNC after cacheflush
  MIPS: pfn_valid() is broken on low memory HIGHMEM systems
  MIPS: HIGHMEM DMA on noncoherent MIPS32 processors
  MIPS: topdown mmap support
  MIPS: Remove redundant addr_limit assignment on exec.
  MIPS: AR7: Replace __attribute__((__packed__)) with __packed
  MIPS: AR7: Remove 'space before tabs' in platform.c
  MIPS: Lantiq: Add missing clk_enable and clk_disable functions.
  MIPS: AR7: Fix trailing semicolon bug in clock.c
  MAINTAINERS: Update MIPS entry.
  MIPS: BCM63xx: Remove duplicate PERF_IRQSTAT_REG definition
  ...

21 files changed, 175 insertions, 30 deletions

diff --git a/arch/mips/include/asm/fixmap.h b/arch/mips/include/asm/fixmap.h
index 0b89b83e2055..98bcc98cf29b 100644
--- a/arch/mips/include/asm/fixmap.h
+++ b/arch/mips/include/asm/fixmap.h
@@ -14,6 +14,7 @@
 #define _ASM_FIXMAP_H
 
 #include <asm/page.h>
+#include <spaces.h>
 #ifdef CONFIG_HIGHMEM
 #include <linux/threads.h>
 #include <asm/kmap_types.h>
@@ -67,15 +68,6 @@ enum fixed_addresses {
  * the start of the fixmap, and leave one page empty
  * at the top of mem..
  */
-#ifdef CONFIG_BCM63XX
-#define FIXADDR_TOP     ((unsigned long)(long)(int)0xff000000)
-#else
-#if defined(CONFIG_CPU_TX39XX) || defined(CONFIG_CPU_TX49XX)
-#define FIXADDR_TOP	((unsigned long)(long)(int)(0xff000000 - 0x20000))
-#else
-#define FIXADDR_TOP	((unsigned long)(long)(int)0xfffe0000)
-#endif
-#endif
 #define FIXADDR_SIZE	(__end_of_fixed_addresses << PAGE_SHIFT)
 #define FIXADDR_START	(FIXADDR_TOP - FIXADDR_SIZE)
 
diff --git a/arch/mips/include/asm/gt64120.h b/arch/mips/include/asm/gt64120.h
index e64b41093c49..0aa44abc77fe 100644
--- a/arch/mips/include/asm/gt64120.h
+++ b/arch/mips/include/asm/gt64120.h
@@ -21,8 +21,6 @@
 #ifndef _ASM_GT64120_H
 #define _ASM_GT64120_H
 
-#include <linux/clocksource.h>
-
 #include <asm/addrspace.h>
 #include <asm/byteorder.h>
 
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 0ec01294b063..2354c870a63a 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -18,7 +18,6 @@
 
 static inline void irq_dispose_mapping(unsigned int virq)
 {
-	return;
 }
 
 #ifdef CONFIG_I8259
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 85fd27509aac..0ed5230243c9 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -89,7 +89,6 @@
 
 /* Interrupt Mask register */
 #define PERF_IRQMASK_REG		0xc
-#define PERF_IRQSTAT_REG		0x10
 
 /* Interrupt Status register */
 #define PERF_IRQSTAT_REG		0x10
diff --git a/arch/mips/include/asm/mach-bcm63xx/spaces.h b/arch/mips/include/asm/mach-bcm63xx/spaces.h
new file mode 100644
index 000000000000..61e750fb4653
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm63xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_BCM63XX_SPACES_H
+#define _ASM_BCM63XX_SPACES_H
+
+#define FIXADDR_TOP		((unsigned long)(long)(int)0xff000000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_BCM63XX_SPACES_H */
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 8da98073e952..9c95177f7a7e 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -49,7 +49,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 
 static inline void plat_extra_sync_for_device(struct device *dev)
 {
-	return;
 }
 
 static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
index c9fa4b14968d..d7a9efd3a5ce 100644
--- a/arch/mips/include/asm/mach-generic/spaces.h
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -82,4 +82,8 @@
 #define PAGE_OFFSET		(CAC_BASE + PHYS_OFFSET)
 #endif
 
+#ifndef FIXADDR_TOP
+#define FIXADDR_TOP		((unsigned long)(long)(int)0xfffe0000)
+#endif
+
 #endif /* __ASM_MACH_GENERIC_SPACES_H */
diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h
index 016d0989b141..06c441968e6e 100644
--- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
@@ -60,7 +60,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 
 static inline void plat_extra_sync_for_device(struct device *dev)
 {
-	return;
 }
 
 static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h
index 302101b54acb..9fc1e9ad7038 100644
--- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
+++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
@@ -50,7 +50,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 
 static inline void plat_extra_sync_for_device(struct device *dev)
 {
-	return;
 }
 
 static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-loongson/dma-coherence.h b/arch/mips/include/asm/mach-loongson/dma-coherence.h
index 981c75f91a7d..e1433055fe98 100644
--- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
@@ -55,7 +55,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 
 static inline void plat_extra_sync_for_device(struct device *dev)
 {
-	return;
 }
 
 static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h b/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
index 2848cea42bce..37e3583a9fdd 100644
--- a/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-malta/cpu-feature-overrides.h
@@ -32,6 +32,7 @@
 /* #define cpu_has_vtag_icache	? */
 /* #define cpu_has_dc_aliases	? */
 /* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz		1
 #define cpu_has_nofpuex		0
 /* #define cpu_has_64bits	? */
 /* #define cpu_has_64bit_zero_reg ? */
@@ -58,6 +59,7 @@
 /* #define cpu_has_vtag_icache	? */
 /* #define cpu_has_dc_aliases	? */
 /* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz		1
 #define cpu_has_nofpuex		0
 /* #define cpu_has_64bits	? */
 /* #define cpu_has_64bit_zero_reg ? */
diff --git a/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h b/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
index 779b02205737..27aaaa5d925e 100644
--- a/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
@@ -31,6 +31,7 @@
 /* #define cpu_has_vtag_icache	? */
 /* #define cpu_has_dc_aliases	? */
 /* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz		1
 #define cpu_has_nofpuex		0
 /* #define cpu_has_64bits	? */
 /* #define cpu_has_64bit_zero_reg ? */
@@ -56,6 +57,7 @@
 /* #define cpu_has_vtag_icache	? */
 /* #define cpu_has_dc_aliases	? */
 /* #define cpu_has_ic_fills_f_dc ? */
+#define cpu_has_clo_clz		1
 #define cpu_has_nofpuex		0
 /* #define cpu_has_64bits	? */
 /* #define cpu_has_64bit_zero_reg ? */
diff --git a/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
new file mode 100644
index 000000000000..f751e3ec56fb
--- /dev/null
+++ b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010  Cisco Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
+#define cpu_has_tlb			1
+#define cpu_has_4kex			1
+#define cpu_has_3k_cache		0
+#define cpu_has_4k_cache		1
+#define cpu_has_tx39_cache		0
+#define cpu_has_fpu			0
+#define cpu_has_counter			1
+#define cpu_has_watch			1
+#define cpu_has_divec			1
+#define cpu_has_vce			0
+#define cpu_has_cache_cdex_p		0
+#define cpu_has_cache_cdex_s		0
+#define cpu_has_mcheck			1
+#define cpu_has_ejtag			1
+#define cpu_has_llsc			1
+#define cpu_has_mips16			0
+#define cpu_has_mdmx			0
+#define cpu_has_mips3d			0
+#define cpu_has_smartmips		0
+#define cpu_has_vtag_icache		0
+#define cpu_has_dc_aliases		0
+#define cpu_has_ic_fills_f_dc		0
+#define cpu_has_mips32r1		0
+#define cpu_has_mips32r2		1
+#define cpu_has_mips64r1		0
+#define cpu_has_mips64r2		0
+#define cpu_has_dsp			0
+#define cpu_has_mipsmt			0
+#define cpu_has_userlocal		0
+#define cpu_has_nofpuex			0
+#define cpu_has_64bits			0
+#define cpu_has_64bit_zero_reg		0
+#define cpu_has_vint			1
+#define cpu_has_veic			1
+#define cpu_has_inclusive_pcaches	0
+
+#define cpu_dcache_line_size()		32
+#define cpu_icache_line_size()		32
+#endif
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
index a8e72cf12142..62c094085947 100644
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
@@ -102,7 +102,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 
 static inline void plat_extra_sync_for_device(struct device *dev)
 {
-	return;
 }
 
 static inline int plat_dma_mapping_error(struct device *dev,
diff --git a/arch/mips/include/asm/mach-tx39xx/spaces.h b/arch/mips/include/asm/mach-tx39xx/spaces.h
new file mode 100644
index 000000000000..151fe7a1cf1d
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx39xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_TX39XX_SPACES_H
+#define _ASM_TX39XX_SPACES_H
+
+#define FIXADDR_TOP		((unsigned long)(long)(int)0xfefe0000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_TX39XX_SPACES_H */
diff --git a/arch/mips/include/asm/mach-tx49xx/spaces.h b/arch/mips/include/asm/mach-tx49xx/spaces.h
new file mode 100644
index 000000000000..0cb10a6f489e
--- /dev/null
+++ b/arch/mips/include/asm/mach-tx49xx/spaces.h
@@ -0,0 +1,17 @@
+/*
+ * 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) 1994 - 1999, 2000, 03, 04 Ralf Baechle
+ * Copyright (C) 2000, 2002  Maciej W. Rozycki
+ * Copyright (C) 1990, 1999, 2000 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_TX49XX_SPACES_H
+#define _ASM_TX49XX_SPACES_H
+
+#define FIXADDR_TOP		((unsigned long)(long)(int)0xfefe0000)
+
+#include <asm/mach-generic/spaces.h>
+
+#endif /* __ASM_TX49XX_SPACES_H */
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index 7e40f3778179..b2202a68cf0f 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -414,6 +414,7 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
  * constraints placed on us by the cache architecture.
  */
 #define HAVE_ARCH_UNMAPPED_AREA
+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
 
 /*
  * No page table caches to initialise
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index 9e09af34c8a8..ef2a8041e78b 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -11,6 +11,8 @@
 #ifndef __ASM_SMP_OPS_H
 #define __ASM_SMP_OPS_H
 
+#include <linux/errno.h>
+
 #ifdef CONFIG_SMP
 
 #include <linux/cpumask.h>
@@ -56,8 +58,43 @@ static inline void register_smp_ops(struct plat_smp_ops *ops)
 
 #endif /* !CONFIG_SMP */
 
-extern struct plat_smp_ops up_smp_ops;
-extern struct plat_smp_ops cmp_smp_ops;
-extern struct plat_smp_ops vsmp_smp_ops;
+static inline int register_up_smp_ops(void)
+{
+#ifdef CONFIG_SMP_UP
+	extern struct plat_smp_ops up_smp_ops;
+
+	register_smp_ops(&up_smp_ops);
+
+	return 0;
+#else
+	return -ENODEV;
+#endif
+}
+
+static inline int register_cmp_smp_ops(void)
+{
+#ifdef CONFIG_MIPS_CMP
+	extern struct plat_smp_ops cmp_smp_ops;
+
+	register_smp_ops(&cmp_smp_ops);
+
+	return 0;
+#else
+	return -ENODEV;
+#endif
+}
+
+static inline int register_vsmp_smp_ops(void)
+{
+#ifdef CONFIG_MIPS_MT_SMP
+	extern struct plat_smp_ops vsmp_smp_ops;
+
+	register_smp_ops(&vsmp_smp_ops);
+
+	return 0;
+#else
+	return -ENODEV;
+#endif
+}
 
 #endif /* __ASM_SMP_OPS_H */
diff --git a/arch/mips/include/asm/smtc.h b/arch/mips/include/asm/smtc.h
index ea60bf08dcb0..c9736fc06325 100644
--- a/arch/mips/include/asm/smtc.h
+++ b/arch/mips/include/asm/smtc.h
@@ -46,6 +46,7 @@ extern void smtc_prepare_cpus(int cpus);
 extern void smtc_smp_finish(void);
 extern void smtc_boot_secondary(int cpu, struct task_struct *t);
 extern void smtc_cpus_done(void);
+extern void smtc_init_secondary(void);
 
 
 /*
diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h
index dcbd4bb417ec..504d40aedfae 100644
--- a/arch/mips/include/asm/uasm.h
+++ b/arch/mips/include/asm/uasm.h
@@ -150,6 +150,7 @@ static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh)
 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh)
 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
@@ -165,6 +166,7 @@ static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
+# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh)
 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 6fcfc480e9d0..ecea7871dec2 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -363,17 +363,18 @@
 #define __NR_open_by_handle_at		(__NR_Linux + 340)
 #define __NR_clock_adjtime		(__NR_Linux + 341)
 #define __NR_syncfs			(__NR_Linux + 342)
-#define __NR_setns			(__NR_Linux + 343)
+#define __NR_sendmmsg			(__NR_Linux + 343)
+#define __NR_setns			(__NR_Linux + 344)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		343
+#define __NR_Linux_syscalls		344
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		343
+#define __NR_O32_Linux_syscalls		344
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -683,17 +684,18 @@
 #define __NR_open_by_handle_at		(__NR_Linux + 299)
 #define __NR_clock_adjtime		(__NR_Linux + 300)
 #define __NR_syncfs			(__NR_Linux + 301)
-#define __NR_setns			(__NR_Linux + 302)
+#define __NR_sendmmsg			(__NR_Linux + 302)
+#define __NR_setns			(__NR_Linux + 303)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		302
+#define __NR_Linux_syscalls		303
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		302
+#define __NR_64_Linux_syscalls		303
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1008,17 +1010,18 @@
 #define __NR_open_by_handle_at		(__NR_Linux + 304)
 #define __NR_clock_adjtime		(__NR_Linux + 305)
 #define __NR_syncfs			(__NR_Linux + 306)
-#define __NR_setns			(__NR_Linux + 307)
+#define __NR_sendmmsg			(__NR_Linux + 307)
+#define __NR_setns			(__NR_Linux + 308)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		307
+#define __NR_Linux_syscalls		308
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		307
+#define __NR_N32_Linux_syscalls		308
 
 #ifdef __KERNEL__