Merge branch 'linus'

19 files changed, 132 insertions, 103 deletions

diff --git a/include/asm-mips/byteorder.h b/include/asm-mips/byteorder.h
index 584f8128fffd..aefc02f16fd8 100644
--- a/include/asm-mips/byteorder.h
+++ b/include/asm-mips/byteorder.h
@@ -39,6 +39,24 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
 }
 #define __arch__swab32(x)       ___arch__swab32(x)
 
+#ifdef CONFIG_CPU_MIPS64_R2
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+{
+        __asm__(
+        "       dsbh    %0, %1                  \n"
+        "       dshd    %0, %0                  \n"
+        "       drotr   %0, %0, 32              \n"
+        : "=r" (x)
+        : "r" (x));
+
+        return x;
+}
+
+#define __arch__swab64(x)       ___arch__swab64(x)
+
+#endif /* CONFIG_CPU_MIPS64_R2 */
+
 #endif /* CONFIG_CPU_MIPSR2 */
 
 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
diff --git a/include/asm-mips/compat.h b/include/asm-mips/compat.h
index 35d2604fe69c..0012bd804d2d 100644
--- a/include/asm-mips/compat.h
+++ b/include/asm-mips/compat.h
@@ -128,17 +128,17 @@ typedef u32		compat_sigset_word;
  */
 typedef u32             compat_uptr_t;
 
-static inline void *compat_ptr(compat_uptr_t uptr)
+static inline void __user *compat_ptr(compat_uptr_t uptr)
 {
-        return (void *)(long)uptr;
+        return (void __user *)(long)uptr;
 }
 
-static inline void *compat_alloc_user_space(long len)
+static inline void __user *compat_alloc_user_space(long len)
 {
         struct pt_regs *regs = (struct pt_regs *)
                 ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
 
-        return (void *) (regs->regs[29] - len);
+        return (void __user *) (regs->regs[29] - len);
 }
 #if defined (__MIPSEL__)
 #define __COMPAT_ENDIAN_SWAP__  1
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index ba1d7bbc15d2..546a17e56a9b 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -40,56 +40,13 @@
  * hardware.  An example use would be for flash memory that's used for
  * execute in place.
  */
-# define __raw_ioswabb(x)       (x)
-# define __raw_ioswabw(x)       (x)
-# define __raw_ioswabl(x)       (x)
-# define __raw_ioswabq(x)       (x)
-# define ____raw_ioswabq(x)     (x)
+# define __raw_ioswabb(a,x)     (x)
+# define __raw_ioswabw(a,x)     (x)
+# define __raw_ioswabl(a,x)     (x)
+# define __raw_ioswabq(a,x)     (x)
+# define ____raw_ioswabq(a,x)   (x)
 
-/*
- * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware;
- * less sane hardware forces software to fiddle with this...
- *
- * Regardless, if the host bus endianness mismatches that of PCI/ISA, then
- * you can't have the numerical value of data and byte addresses within
- * multibyte quantities both preserved at the same time.  Hence two
- * variations of functions: non-prefixed ones that preserve the value
- * and prefixed ones that preserve byte addresses.  The latters are
- * typically used for moving raw data between a peripheral and memory (cf.
- * string I/O functions), hence the "__mem_" prefix.
- */
-#if defined(CONFIG_SWAP_IO_SPACE)
-
-# define ioswabb(x)             (x)
-# define __mem_ioswabb(x)       (x)
-# ifdef CONFIG_SGI_IP22
-/*
- * IP22 seems braindead enough to swap 16bits values in hardware, but
- * not 32bits.  Go figure... Can't tell without documentation.
- */
-#  define ioswabw(x)            (x)
-#  define __mem_ioswabw(x)      le16_to_cpu(x)
-# else
-#  define ioswabw(x)            le16_to_cpu(x)
-#  define __mem_ioswabw(x)      (x)
-# endif
-# define ioswabl(x)             le32_to_cpu(x)
-# define __mem_ioswabl(x)       (x)
-# define ioswabq(x)             le64_to_cpu(x)
-# define __mem_ioswabq(x)       (x)
-
-#else
-
-# define ioswabb(x)             (x)
-# define __mem_ioswabb(x)       (x)
-# define ioswabw(x)             (x)
-# define __mem_ioswabw(x)       cpu_to_le16(x)
-# define ioswabl(x)             (x)
-# define __mem_ioswabl(x)       cpu_to_le32(x)
-# define ioswabq(x)             (x)
-# define __mem_ioswabq(x)       cpu_to_le32(x)
-
-#endif
+/* ioswab[bwlq], __mem_ioswab[bwlq] are defined in mangle-port.h */
 
 #define IO_SPACE_LIMIT 0xffff
 
@@ -346,7 +303,7 @@ static inline void pfx##write##bwlq(type val,				\
                                                                         \
         __mem = (void *)__swizzle_addr_##bwlq((unsigned long)(mem));    \
                                                                         \
-        __val = pfx##ioswab##bwlq(val);                                 \
+        __val = pfx##ioswab##bwlq(__mem, val);                          \
                                                                         \
         if (sizeof(type) != sizeof(u64) || sizeof(u64) == sizeof(long)) \
                 *__mem = __val;                                         \
@@ -401,7 +358,7 @@ static inline type pfx##read##bwlq(const volatile void __iomem *mem)	\
                 BUG();                                                  \
         }                                                               \
                                                                         \
-        return pfx##ioswab##bwlq(__val);                                \
+        return pfx##ioswab##bwlq(__mem, __val);                         \
 }
 
 #define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, p, slow)                 \
@@ -411,10 +368,9 @@ static inline void pfx##out##bwlq##p(type val, unsigned long port)	\
         volatile type *__addr;                                          \
         type __val;                                                     \
                                                                         \
-        port = __swizzle_addr_##bwlq(port);                             \
-        __addr = (void *)(mips_io_port_base + port);                    \
+        __addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
                                                                         \
-        __val = pfx##ioswab##bwlq(val);                                 \
+        __val = pfx##ioswab##bwlq(__addr, val);                         \
                                                                         \
         /* Really, we want this to be atomic */                         \
         BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));             \
@@ -428,15 +384,14 @@ static inline type pfx##in##bwlq##p(unsigned long port)			\
         volatile type *__addr;                                          \
         type __val;                                                     \
                                                                         \
-        port = __swizzle_addr_##bwlq(port);                             \
-        __addr = (void *)(mips_io_port_base + port);                    \
+        __addr = (void *)__swizzle_addr_##bwlq(mips_io_port_base + port); \
                                                                         \
         BUILD_BUG_ON(sizeof(type) > sizeof(unsigned long));             \
                                                                         \
         __val = *__addr;                                                \
         slow;                                                           \
                                                                         \
-        return pfx##ioswab##bwlq(__val);                                \
+        return pfx##ioswab##bwlq(__addr, __val);                        \
 }
 
 #define __BUILD_MEMORY_PFX(bus, bwlq, type)                             \
diff --git a/include/asm-mips/mach-cobalt/cobalt.h b/include/asm-mips/mach-cobalt/cobalt.h
index 78e1df2095fb..b3c5ecbec03c 100644
--- a/include/asm-mips/mach-cobalt/cobalt.h
+++ b/include/asm-mips/mach-cobalt/cobalt.h
@@ -113,4 +113,6 @@ do {									\
 # define COBALT_KEY_SELECT      (1 << 7)
 # define COBALT_KEY_MASK        0xfe
 
+#define COBALT_UART             ((volatile unsigned char *) CKSEG1ADDR(0x1c800000))
+
 #endif /* __ASM_COBALT_H */
diff --git a/include/asm-mips/mach-generic/mangle-port.h b/include/asm-mips/mach-generic/mangle-port.h
index 4a98d83b8ec7..6e1b0c075de7 100644
--- a/include/asm-mips/mach-generic/mangle-port.h
+++ b/include/asm-mips/mach-generic/mangle-port.h
@@ -13,4 +13,40 @@
 #define __swizzle_addr_l(port)  (port)
 #define __swizzle_addr_q(port)  (port)
 
+/*
+ * Sane hardware offers swapping of PCI/ISA I/O space accesses in hardware;
+ * less sane hardware forces software to fiddle with this...
+ *
+ * Regardless, if the host bus endianness mismatches that of PCI/ISA, then
+ * you can't have the numerical value of data and byte addresses within
+ * multibyte quantities both preserved at the same time.  Hence two
+ * variations of functions: non-prefixed ones that preserve the value
+ * and prefixed ones that preserve byte addresses.  The latters are
+ * typically used for moving raw data between a peripheral and memory (cf.
+ * string I/O functions), hence the "__mem_" prefix.
+ */
+#if defined(CONFIG_SWAP_IO_SPACE)
+
+# define ioswabb(a,x)           (x)
+# define __mem_ioswabb(a,x)     (x)
+# define ioswabw(a,x)           le16_to_cpu(x)
+# define __mem_ioswabw(a,x)     (x)
+# define ioswabl(a,x)           le32_to_cpu(x)
+# define __mem_ioswabl(a,x)     (x)
+# define ioswabq(a,x)           le64_to_cpu(x)
+# define __mem_ioswabq(a,x)     (x)
+
+#else
+
+# define ioswabb(a,x)           (x)
+# define __mem_ioswabb(a,x)     (x)
+# define ioswabw(a,x)           (x)
+# define __mem_ioswabw(a,x)     cpu_to_le16(x)
+# define ioswabl(a,x)           (x)
+# define __mem_ioswabl(a,x)     cpu_to_le32(x)
+# define ioswabq(a,x)           (x)
+# define __mem_ioswabq(a,x)     cpu_to_le32(x)
+
+#endif
+
 #endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */
diff --git a/include/asm-mips/mach-ip27/mangle-port.h b/include/asm-mips/mach-ip27/mangle-port.h
index f76c44880451..d615312a451a 100644
--- a/include/asm-mips/mach-ip27/mangle-port.h
+++ b/include/asm-mips/mach-ip27/mangle-port.h
@@ -13,4 +13,13 @@
 #define __swizzle_addr_l(port)  (port)
 #define __swizzle_addr_q(port)  (port)
 
+# define ioswabb(a,x)           (x)
+# define __mem_ioswabb(a,x)     (x)
+# define ioswabw(a,x)           (x)
+# define __mem_ioswabw(a,x)     cpu_to_le16(x)
+# define ioswabl(a,x)           (x)
+# define __mem_ioswabl(a,x)     cpu_to_le32(x)
+# define ioswabq(a,x)           (x)
+# define __mem_ioswabq(a,x)     cpu_to_le32(x)
+
 #endif /* __ASM_MACH_IP27_MANGLE_PORT_H */
diff --git a/include/asm-mips/mach-ip32/mangle-port.h b/include/asm-mips/mach-ip32/mangle-port.h
index 6e25b52ed8f2..81320eb55324 100644
--- a/include/asm-mips/mach-ip32/mangle-port.h
+++ b/include/asm-mips/mach-ip32/mangle-port.h
@@ -14,4 +14,13 @@
 #define __swizzle_addr_l(port)  (port)
 #define __swizzle_addr_q(port)  (port)
 
+# define ioswabb(a,x)           (x)
+# define __mem_ioswabb(a,x)     (x)
+# define ioswabw(a,x)           (x)
+# define __mem_ioswabw(a,x)     cpu_to_le16(x)
+# define ioswabl(a,x)           (x)
+# define __mem_ioswabl(a,x)     cpu_to_le32(x)
+# define ioswabq(a,x)           (x)
+# define __mem_ioswabq(a,x)     cpu_to_le32(x)
+
 #endif /* __ASM_MACH_IP32_MANGLE_PORT_H */
diff --git a/include/asm-mips/mach-mips/cpu-feature-overrides.h b/include/asm-mips/mach-mips/cpu-feature-overrides.h
index 9f92aed17754..e06af6c86f86 100644
--- a/include/asm-mips/mach-mips/cpu-feature-overrides.h
+++ b/include/asm-mips/mach-mips/cpu-feature-overrides.h
@@ -29,7 +29,11 @@
 /* #define cpu_has_prefetch     ? */
 #define cpu_has_mcheck          1
 /* #define cpu_has_ejtag        ? */
+#ifdef CONFIG_CPU_HAS_LLSC
 #define cpu_has_llsc            1
+#else
+#define cpu_has_llsc            0
+#endif
 /* #define cpu_has_vtag_icache  ? */
 /* #define cpu_has_dc_aliases   ? */
 /* #define cpu_has_ic_fills_f_dc ? */
diff --git a/include/asm-mips/mmu_context.h b/include/asm-mips/mmu_context.h
index 19cdf7642e66..61cf22588137 100644
--- a/include/asm-mips/mmu_context.h
+++ b/include/asm-mips/mmu_context.h
@@ -33,12 +33,7 @@ extern unsigned long pgd_current[];
         write_c0_context((unsigned long) smp_processor_id() << 25);     \
         TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
 #endif
-#if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
-#define TLBMISS_HANDLER_SETUP()                                         \
-        write_c0_context((unsigned long) &pgd_current[smp_processor_id()] << 23); \
-        TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
-#endif
-#if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
+#ifdef CONFIG_64BIT
 #define TLBMISS_HANDLER_SETUP()                                         \
         write_c0_context((unsigned long) smp_processor_id() << 26);     \
         TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h
index 0cff64ce0fb8..4d6bc45df594 100644
--- a/include/asm-mips/pgtable-32.h
+++ b/include/asm-mips/pgtable-32.h
@@ -206,7 +206,7 @@ pfn_pte(unsigned long pfn, pgprot_t prot)
         /* fixme */
 #define pte_to_pgoff(_pte) (((_pte).pte_high >> 6) + ((_pte).pte_high & 0x3f))
 #define pgoff_to_pte(off) \
-        ((pte_t){(((off) & 0x3f) + ((off) << 6) + _PAGE_FILE)})
+        ((pte_t){(((off) & 0x3f) + ((off) << 6) + _PAGE_FILE)})
 
 #else
 #define pte_to_pgoff(_pte) \
diff --git a/include/asm-mips/r4kcache.h b/include/asm-mips/r4kcache.h
index 0bcb79a58ee9..90c374700977 100644
--- a/include/asm-mips/r4kcache.h
+++ b/include/asm-mips/r4kcache.h
@@ -303,5 +303,6 @@ __BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
 __BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
 /* blast_inv_dcache_range */
 __BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, )
+__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, )
 
 #endif /* _ASM_R4KCACHE_H */
diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h
index 6fe903e09c62..d8349e4b55ee 100644
--- a/include/asm-mips/signal.h
+++ b/include/asm-mips/signal.h
@@ -147,16 +147,34 @@ struct k_sigaction {
 
 /* IRIX compatible stack_t  */
 typedef struct sigaltstack {
-        void *ss_sp;
+        void __user *ss_sp;
         size_t ss_size;
         int ss_flags;
 } stack_t;
 
 #ifdef __KERNEL__
 #include <asm/sigcontext.h>
+#include <asm/siginfo.h>
 
 #define ptrace_signal_deliver(regs, cookie) do { } while (0)
 
+struct pt_regs;
+extern void do_signal(struct pt_regs *regs);
+extern void do_signal32(struct pt_regs *regs);
+
+extern int setup_frame(struct k_sigaction * ka, struct pt_regs *regs,
+        int signr, sigset_t *set);
+extern int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs,
+        int signr, sigset_t *set, siginfo_t *info);
+
+extern int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+        int signr, sigset_t *set);
+extern int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
+        int signr, sigset_t *set, siginfo_t *info);
+
+extern int setup_rt_frame_n32(struct k_sigaction * ka, struct pt_regs *regs,
+        int signr, sigset_t *set, siginfo_t *info);
+
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_SIGNAL_H */
diff --git a/include/asm-mips/sn/klconfig.h b/include/asm-mips/sn/klconfig.h
index d028e28d6239..9709ff701d9b 100644
--- a/include/asm-mips/sn/klconfig.h
+++ b/include/asm-mips/sn/klconfig.h
@@ -99,7 +99,7 @@ typedef s32 klconf_off_t;
 #define ENABLE_BOARD            0x01
 #define FAILED_BOARD            0x02
 #define DUPLICATE_BOARD         0x04    /* Boards like midplanes/routers which
-                                           are discovered twice. Use one of them */
+                                           are discovered twice. Use one of them */
 #define VISITED_BOARD           0x08    /* Used for compact hub numbering. */
 #define LOCAL_MASTER_IO6        0x10    /* master io6 for that node */
 #define GLOBAL_MASTER_IO6       0x20
diff --git a/include/asm-mips/sn/mapped_kernel.h b/include/asm-mips/sn/mapped_kernel.h
index 3a17846df849..59edb20f8ec5 100644
--- a/include/asm-mips/sn/mapped_kernel.h
+++ b/include/asm-mips/sn/mapped_kernel.h
@@ -23,11 +23,7 @@
 #include <linux/config.h>
 #include <asm/addrspace.h>
 
-#ifdef CONFIG_BUILD_ELF64
 #define REP_BASE        CAC_BASE
-#else
-#define REP_BASE        CKSEG0
-#endif
 
 #ifdef CONFIG_MAPPED_KERNEL
 
diff --git a/include/asm-mips/sn/sn0/hubio.h b/include/asm-mips/sn/sn0/hubio.h
index 80cf6a52ed3b..f314da21b970 100644
--- a/include/asm-mips/sn/sn0/hubio.h
+++ b/include/asm-mips/sn/sn0/hubio.h
@@ -229,7 +229,7 @@ typedef union hubii_ilcsr_u {
                         icsr_llp_en:     1,     /* LLP enable bit */
                         icsr_rsvd2:      1,     /* reserver */
                         icsr_wrm_reset:  1,     /* Warm reset bit */
-                        icsr_rsvd1:      2,     /* Data ready offset */
+                        icsr_rsvd1:      2,     /* Data ready offset */
                         icsr_null_to:    6;     /* Null timeout   */
 
         } icsr_fields_s;
@@ -274,9 +274,9 @@ typedef union io_perf_sel {
         u64 perf_sel_reg;
         struct {
                 u64     perf_rsvd  : 48,
-                        perf_icct  :  8,
-                        perf_ippr1 :  4,
-                        perf_ippr0 :  4;
+                        perf_icct  :  8,
+                        perf_ippr1 :  4,
+                        perf_ippr0 :  4;
         } perf_sel_bits;
 } io_perf_sel_t;
 
@@ -287,8 +287,8 @@ typedef union io_perf_cnt {
         u64     perf_cnt;
         struct {
                 u64     perf_rsvd1 : 32,
-                                perf_rsvd2 : 12,
-                                perf_cnt   : 20;
+                        perf_rsvd2 : 12,
+                        perf_cnt   : 20;
         } perf_cnt_bits;
 } io_perf_cnt_t;
 
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index a8919dcc93c8..2acf3e844f00 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -63,17 +63,7 @@
                 addu    k1, k0
                 LONG_L  k1, %lo(kernelsp)(k1)
 #endif
-#if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
-                MFC0    k1, CP0_CONTEXT
-                dsra    k1, 23
-                lui     k0, %hi(pgd_current)
-                addiu   k0, %lo(pgd_current)
-                dsubu   k1, k0
-                lui     k0, %hi(kernelsp)
-                daddu   k1, k0
-                LONG_L  k1, %lo(kernelsp)(k1)
-#endif
-#if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
+#ifdef CONFIG_64BIT
                 MFC0    k1, CP0_CONTEXT
                 lui     k0, %highest(kernelsp)
                 dsrl    k1, 23
@@ -91,11 +81,7 @@
                 mfc0    \temp, CP0_CONTEXT
                 srl     \temp, 23
 #endif
-#if defined(CONFIG_64BIT) && !defined(CONFIG_BUILD_ELF64)
-                lw      \temp, TI_CPU(gp)
-                dsll    \temp, 3
-#endif
-#if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
+#ifdef CONFIG_64BIT
                 MFC0    \temp, CP0_CONTEXT
                 dsrl    \temp, 23
 #endif
@@ -103,7 +89,7 @@
                 .endm
 #else
                 .macro  get_saved_sp    /* Uniprocessor variation */
-#if defined(CONFIG_64BIT) && defined(CONFIG_BUILD_ELF64)
+#ifdef CONFIG_64BIT
                 lui     k1, %highest(kernelsp)
                 daddiu  k1, %higher(kernelsp)
                 dsll    k1, k1, 16
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index ddae9bae31af..4097fac5ac3c 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -286,10 +286,10 @@ extern void __xchg_called_with_bad_pointer(void);
 static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
 {
         switch (size) {
-                case 4:
-                        return __xchg_u32(ptr, x);
-                case 8:
-                        return __xchg_u64(ptr, x);
+        case 4:
+                return __xchg_u32(ptr, x);
+        case 8:
+                return __xchg_u64(ptr, x);
         }
         __xchg_called_with_bad_pointer();
         return x;
diff --git a/include/asm-mips/termbits.h b/include/asm-mips/termbits.h
index c29c65b7818e..fa6d04dac56b 100644
--- a/include/asm-mips/termbits.h
+++ b/include/asm-mips/termbits.h
@@ -77,7 +77,7 @@ struct termios {
 #define IXANY   0004000         /* Any character will restart after stop.  */
 #define IXOFF   0010000         /* Enable start/stop input control.  */
 #define IMAXBEL 0020000         /* Ring bell when input queue is full.  */
-#define IUTF8   0040000         /* Input is UTF8 */
+#define IUTF8   0040000         /* Input is UTF-8 */
 
 /* c_oflag bits */
 #define OPOST   0000001         /* Perform output processing.  */
diff --git a/include/asm-mips/thread_info.h b/include/asm-mips/thread_info.h
index fa193f861e71..f8d97dafd2f4 100644
--- a/include/asm-mips/thread_info.h
+++ b/include/asm-mips/thread_info.h
@@ -31,7 +31,7 @@ struct thread_info {
         int                     preempt_count;  /* 0 => preemptable, <0 => BUG */
 
         mm_segment_t            addr_limit;     /* thread address space:
-                                                   0-0xBFFFFFFF for user-thead
+                                                   0-0xBFFFFFFF for user-thead
                                                    0-0xFFFFFFFF for kernel-thread
                                                 */
         struct restart_block    restart_block;