Merge branch 'master' into sh/smp

Conflicts:
	arch/sh/mm/cache-sh4.c

17 files changed, 143 insertions, 50 deletions

diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 43910cdf78a5..e121c30f797d 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -1,6 +1,6 @@
 include include/asm-generic/Kbuild.asm
 
-header-y += cpu-features.h
+header-y += cachectl.h cpu-features.h
 
 unifdef-y += unistd_32.h
 unifdef-y += unistd_64.h
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index c01718040166..d02c01b3e6b9 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -2,6 +2,7 @@
 #define __ASM_SH_BUG_H
 
 #define TRAPA_BUG_OPCODE        0xc33e  /* trapa #0x3e */
+#define BUGFLAG_UNWINDER        (1 << 1)
 
 #ifdef CONFIG_GENERIC_BUG
 #define HAVE_ARCH_BUG
@@ -72,6 +73,36 @@ do {							\
         unlikely(__ret_warn_on);                                \
 })
 
+#define UNWINDER_BUG()                                  \
+do {                                                    \
+        __asm__ __volatile__ (                          \
+                "1:\t.short %O0\n"                      \
+                _EMIT_BUG_ENTRY                         \
+                 :                                      \
+                 : "n" (TRAPA_BUG_OPCODE),              \
+                   "i" (__FILE__),                      \
+                   "i" (__LINE__),                      \
+                   "i" (BUGFLAG_UNWINDER),              \
+                   "i" (sizeof(struct bug_entry)));     \
+} while (0)
+
+#define UNWINDER_BUG_ON(x) ({                                   \
+        int __ret_unwinder_on = !!(x);                          \
+        if (__builtin_constant_p(__ret_unwinder_on)) {          \
+                if (__ret_unwinder_on)                          \
+                        UNWINDER_BUG();                         \
+        } else {                                                \
+                if (unlikely(__ret_unwinder_on))                \
+                        UNWINDER_BUG();                         \
+        }                                                       \
+        unlikely(__ret_unwinder_on);                            \
+})
+
+#else
+
+#define UNWINDER_BUG    BUG
+#define UNWINDER_BUG_ON BUG_ON
+
 #endif /* CONFIG_GENERIC_BUG */
 
 #include <asm-generic/bug.h>
diff --git a/arch/sh/include/asm/cachectl.h b/arch/sh/include/asm/cachectl.h
new file mode 100644
index 000000000000..6ffb4b7a212e
--- /dev/null
+++ b/arch/sh/include/asm/cachectl.h
@@ -0,0 +1,19 @@
+#ifndef _SH_CACHECTL_H
+#define _SH_CACHECTL_H
+
+/* Definitions for the cacheflush system call.  */
+
+#define CACHEFLUSH_D_INVAL      0x1     /* invalidate (without write back) */
+#define CACHEFLUSH_D_WB         0x2     /* write back (without invalidate) */
+#define CACHEFLUSH_D_PURGE      0x3     /* writeback and invalidate */
+
+#define CACHEFLUSH_I            0x4
+
+/*
+ * Options for cacheflush system call
+ */
+#define ICACHE  CACHEFLUSH_I            /* flush instruction cache */
+#define DCACHE  CACHEFLUSH_D_PURGE      /* writeback and flush data cache */
+#define BCACHE  (ICACHE|DCACHE)         /* flush both caches */
+
+#endif /* _SH_CACHECTL_H */
diff --git a/arch/sh/include/asm/device.h b/arch/sh/include/asm/device.h
index 8688a88303ee..b16debfe8c1e 100644
--- a/arch/sh/include/asm/device.h
+++ b/arch/sh/include/asm/device.h
@@ -3,7 +3,9 @@
  *
  * This file is released under the GPLv2
  */
-#include <asm-generic/device.h>
+
+struct dev_archdata {
+};
 
 struct platform_device;
 /* allocate contiguous memory chunk and fill in struct resource */
@@ -12,3 +14,15 @@ int platform_resource_setup_memory(struct platform_device *pdev,
 
 void plat_early_device_setup(void);
 
+#define PDEV_ARCHDATA_FLAG_INIT 0
+#define PDEV_ARCHDATA_FLAG_IDLE 1
+#define PDEV_ARCHDATA_FLAG_SUSP 2
+
+struct pdev_archdata {
+        int hwblk_id;
+#ifdef CONFIG_PM_RUNTIME
+        unsigned long flags;
+        struct list_head entry;
+        struct mutex mutex;
+#endif
+};
diff --git a/arch/sh/include/asm/dwarf.h b/arch/sh/include/asm/dwarf.h
index d3d3837c5e1b..ced6795891a6 100644
--- a/arch/sh/include/asm/dwarf.h
+++ b/arch/sh/include/asm/dwarf.h
@@ -200,7 +200,7 @@
  */
 static __always_inline unsigned long dwarf_read_arch_reg(unsigned int reg)
 {
-        unsigned long value;
+        unsigned long value = 0;
 
         switch (reg) {
         case 14:
@@ -265,10 +265,7 @@ struct dwarf_frame {
 
         unsigned long pc;
 
-        struct dwarf_reg *regs;
-        unsigned int num_regs;  /* how many regs are allocated? */
-
-        unsigned int depth;     /* what level are we in the callstack? */
+        struct list_head reg_list;
 
         unsigned long cfa;
 
@@ -292,20 +289,15 @@ struct dwarf_frame {
  *      @flags: Describes how to calculate the value of this register
  */
 struct dwarf_reg {
+        struct list_head link;
+
+        unsigned int number;
+
         unsigned long addr;
         unsigned long flags;
 #define DWARF_REG_OFFSET        (1 << 0)
-};
-
-/**
- *      dwarf_stack - a DWARF stack contains a collection of DWARF frames
- *      @depth: the number of frames in the stack
- *      @level: an array of DWARF frames, indexed by stack level
- *
- */
-struct dwarf_stack {
-        unsigned int depth;
-        struct dwarf_frame **level;
+#define DWARF_VAL_OFFSET        (1 << 1)
+#define DWARF_UNDEFINED         (1 << 2)
 };
 
 /*
@@ -370,17 +362,16 @@ static inline unsigned int DW_CFA_operand(unsigned long insn)
 #define DW_EXT_HI       0xffffffff
 #define DW_EXT_DWARF64  DW_EXT_HI
 
-extern void dwarf_unwinder_init(void);
-
 extern struct dwarf_frame *dwarf_unwind_stack(unsigned long,
                                               struct dwarf_frame *);
-#endif /* __ASSEMBLY__ */
+#endif /* !__ASSEMBLY__ */
 
 #define CFI_STARTPROC   .cfi_startproc
 #define CFI_ENDPROC     .cfi_endproc
 #define CFI_DEF_CFA     .cfi_def_cfa
 #define CFI_REGISTER    .cfi_register
 #define CFI_REL_OFFSET  .cfi_rel_offset
+#define CFI_UNDEFINED   .cfi_undefined
 
 #else
 
@@ -394,6 +385,7 @@ extern struct dwarf_frame *dwarf_unwind_stack(unsigned long,
 #define CFI_DEF_CFA     CFI_IGNORE
 #define CFI_REGISTER    CFI_IGNORE
 #define CFI_REL_OFFSET  CFI_IGNORE
+#define CFI_UNDEFINED   CFI_IGNORE
 
 #ifndef __ASSEMBLY__
 static inline void dwarf_unwinder_init(void)
diff --git a/arch/sh/include/asm/entry-macros.S b/arch/sh/include/asm/entry-macros.S
index 64fd0de24daf..cc43a55e1fcf 100644
--- a/arch/sh/include/asm/entry-macros.S
+++ b/arch/sh/include/asm/entry-macros.S
@@ -7,7 +7,7 @@
         .endm
 
         .macro  sti
-        mov     #0xf0, r11
+        mov     #0xfffffff0, r11
         extu.b  r11, r11
         not     r11, r11
         stc     sr, r10
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
index 7e0bcc4d4a96..12f3a31f20af 100644
--- a/arch/sh/include/asm/ftrace.h
+++ b/arch/sh/include/asm/ftrace.h
@@ -4,6 +4,7 @@
 #ifdef CONFIG_FUNCTION_TRACER
 
 #define MCOUNT_INSN_SIZE        4 /* sizeof mcount call */
+#define FTRACE_SYSCALL_MAX      NR_syscalls
 
 #ifndef __ASSEMBLY__
 extern void mcount(void);
diff --git a/arch/sh/include/asm/hwblk.h b/arch/sh/include/asm/hwblk.h
index c01d72cb6757..5d3ccae4202b 100644
--- a/arch/sh/include/asm/hwblk.h
+++ b/arch/sh/include/asm/hwblk.h
@@ -5,7 +5,9 @@
 #include <asm/io.h>
 
 #define HWBLK_CNT_USAGE 0
-#define HWBLK_CNT_NR 1
+#define HWBLK_CNT_IDLE 1
+#define HWBLK_CNT_DEVICES 2
+#define HWBLK_CNT_NR 3
 
 #define HWBLK_AREA_FLAG_PARENT (1 << 0) /* valid parent */
 
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 25348141674b..5be45ea4dfec 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -92,8 +92,12 @@
 
 static inline void ctrl_delay(void)
 {
-#ifdef P2SEG
+#ifdef CONFIG_CPU_SH4
+        __raw_readw(CCN_PVR);
+#elif defined(P2SEG)
         __raw_readw(P2SEG);
+#else
+#error "Need a dummy address for delay"
 #endif
 }
 
@@ -146,6 +150,7 @@ __BUILD_MEMORY_STRING(q, u64)
 #define readl_relaxed(a)        readl(a)
 #define readq_relaxed(a)        readq(a)
 
+#ifndef CONFIG_GENERIC_IOMAP
 /* Simple MMIO */
 #define ioread8(a)              __raw_readb(a)
 #define ioread16(a)             __raw_readw(a)
@@ -166,6 +171,15 @@ __BUILD_MEMORY_STRING(q, u64)
 #define iowrite8_rep(a, s, c)   __raw_writesb((a), (s), (c))
 #define iowrite16_rep(a, s, c)  __raw_writesw((a), (s), (c))
 #define iowrite32_rep(a, s, c)  __raw_writesl((a), (s), (c))
+#endif
+
+#define mmio_insb(p,d,c)        __raw_readsb(p,d,c)
+#define mmio_insw(p,d,c)        __raw_readsw(p,d,c)
+#define mmio_insl(p,d,c)        __raw_readsl(p,d,c)
+
+#define mmio_outsb(p,s,c)       __raw_writesb(p,s,c)
+#define mmio_outsw(p,s,c)       __raw_writesw(p,s,c)
+#define mmio_outsl(p,s,c)       __raw_writesl(p,s,c)
 
 /* synco on SH-4A, otherwise a nop */
 #define mmiowb()                wmb()
diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h
index 0db19db913c7..4c4429cda56d 100644
--- a/arch/sh/include/asm/pgtable_32.h
+++ b/arch/sh/include/asm/pgtable_32.h
@@ -87,6 +87,14 @@
 #define _PAGE_PCC_ATR8  0x60000000      /* Attribute Memory space, 8 bit bus */
 #define _PAGE_PCC_ATR16 0x60000001      /* Attribute Memory space, 6 bit bus */
 
+#ifndef CONFIG_X2TLB
+/* copy the ptea attributes */
+static inline unsigned long copy_ptea_attributes(unsigned long x)
+{
+        return  ((x >> 28) & 0xe) | (x & 0x1);
+}
+#endif
+
 /* Mask which drops unused bits from the PTEL value */
 #if defined(CONFIG_CPU_SH3)
 #define _PAGE_CLEAR_FLAGS       (_PAGE_PROTNONE | _PAGE_ACCESSED| \
diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h
index db1a4f3a755f..017e0c1807b2 100644
--- a/arch/sh/include/asm/processor.h
+++ b/arch/sh/include/asm/processor.h
@@ -32,7 +32,7 @@ enum cpu_type {
 
         /* SH-4A types */
         CPU_SH7763, CPU_SH7770, CPU_SH7780, CPU_SH7781, CPU_SH7785, CPU_SH7786,
-        CPU_SH7723, CPU_SH7724, CPU_SHX3,
+        CPU_SH7723, CPU_SH7724, CPU_SH7757, CPU_SHX3,
 
         /* SH4AL-DSP types */
         CPU_SH7343, CPU_SH7722, CPU_SH7366,
diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index bf7c4cbde372..6b272238a46e 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -169,6 +169,11 @@ BUILD_TRAP_HANDLER(breakpoint);
 BUILD_TRAP_HANDLER(singlestep);
 BUILD_TRAP_HANDLER(fpu_error);
 BUILD_TRAP_HANDLER(fpu_state_restore);
+BUILD_TRAP_HANDLER(unwinder);
+
+#ifdef CONFIG_BUG
+extern void handle_BUG(struct pt_regs *);
+#endif
 
 #define arch_align_stack(x) (x)
 
diff --git a/arch/sh/include/asm/system_32.h b/arch/sh/include/asm/system_32.h
index 5ddd2359f3ef..607d413f6168 100644
--- a/arch/sh/include/asm/system_32.h
+++ b/arch/sh/include/asm/system_32.h
@@ -14,12 +14,12 @@ do {									\
                         (u32 *)&tsk->thread.dsp_status;                 \
         __asm__ __volatile__ (                                          \
                 ".balign 4\n\t"                                         \
+                "movs.l @r2+, a0\n\t"                                   \
                 "movs.l @r2+, a1\n\t"                                   \
                 "movs.l @r2+, a0g\n\t"                                  \
                 "movs.l @r2+, a1g\n\t"                                  \
                 "movs.l @r2+, m0\n\t"                                   \
                 "movs.l @r2+, m1\n\t"                                   \
-                "movs.l @r2+, a0\n\t"                                   \
                 "movs.l @r2+, x0\n\t"                                   \
                 "movs.l @r2+, x1\n\t"                                   \
                 "movs.l @r2+, y0\n\t"                                   \
@@ -39,20 +39,20 @@ do {									\
                                                                         \
         __asm__ __volatile__ (                                          \
                 ".balign 4\n\t"                                         \
-                "stc.l  mod, @-r2\n\t"                          \
+                "stc.l  mod, @-r2\n\t"                                  \
                 "stc.l  re, @-r2\n\t"                                   \
                 "stc.l  rs, @-r2\n\t"                                   \
-                "sts.l  dsr, @-r2\n\t"                          \
-                "sts.l  y1, @-r2\n\t"                                   \
-                "sts.l  y0, @-r2\n\t"                                   \
-                "sts.l  x1, @-r2\n\t"                                   \
-                "sts.l  x0, @-r2\n\t"                                   \
-                "sts.l  a0, @-r2\n\t"                                   \
-                ".word  0xf653          ! movs.l        a1, @-r2\n\t"   \
-                ".word  0xf6f3          ! movs.l        a0g, @-r2\n\t"  \
-                ".word  0xf6d3          ! movs.l        a1g, @-r2\n\t"  \
-                ".word  0xf6c3          ! movs.l        m0, @-r2\n\t"   \
-                ".word  0xf6e3          ! movs.l        m1, @-r2\n\t"   \
+                "sts.l  dsr, @-r2\n\t"                                  \
+                "movs.l y1, @-r2\n\t"                                   \
+                "movs.l y0, @-r2\n\t"                                   \
+                "movs.l x1, @-r2\n\t"                                   \
+                "movs.l x0, @-r2\n\t"                                   \
+                "movs.l m1, @-r2\n\t"                                   \
+                "movs.l m0, @-r2\n\t"                                   \
+                "movs.l a1g, @-r2\n\t"                                  \
+                "movs.l a0g, @-r2\n\t"                                  \
+                "movs.l a1, @-r2\n\t"                                   \
+                "movs.l a0, @-r2\n\t"                                   \
                 : : "r" (__ts2));                                       \
 } while (0)
 
@@ -214,7 +214,7 @@ static inline reg_size_t register_align(void *val)
 }
 
 int handle_unaligned_access(insn_size_t instruction, struct pt_regs *regs,
-                            struct mem_access *ma);
+                            struct mem_access *ma, int);
 
 asmlinkage void do_address_error(struct pt_regs *regs,
                                  unsigned long writeaccess,
diff --git a/arch/sh/include/asm/unistd_32.h b/arch/sh/include/asm/unistd_32.h
index 61d6ad93d786..925dd40d9d55 100644
--- a/arch/sh/include/asm/unistd_32.h
+++ b/arch/sh/include/asm/unistd_32.h
@@ -132,7 +132,7 @@
 #define __NR_clone              120
 #define __NR_setdomainname      121
 #define __NR_uname              122
-#define __NR_modify_ldt         123
+#define __NR_cacheflush         123
 #define __NR_adjtimex           124
 #define __NR_mprotect           125
 #define __NR_sigprocmask        126
diff --git a/arch/sh/include/asm/unistd_64.h b/arch/sh/include/asm/unistd_64.h
index a751699afda3..2b84bc916bc5 100644
--- a/arch/sh/include/asm/unistd_64.h
+++ b/arch/sh/include/asm/unistd_64.h
@@ -137,7 +137,7 @@
 #define __NR_clone              120
 #define __NR_setdomainname      121
 #define __NR_uname              122
-#define __NR_modify_ldt         123
+#define __NR_cacheflush         123
 #define __NR_adjtimex           124
 #define __NR_mprotect           125
 #define __NR_sigprocmask        126
diff --git a/arch/sh/include/asm/unwinder.h b/arch/sh/include/asm/unwinder.h
index 3dc551453e28..1e65c07b3e18 100644
--- a/arch/sh/include/asm/unwinder.h
+++ b/arch/sh/include/asm/unwinder.h
@@ -22,4 +22,10 @@ extern void stack_reader_dump(struct task_struct *, struct pt_regs *,
                               unsigned long *, const struct stacktrace_ops *,
                               void *);
 
+/*
+ * Used by fault handling code to signal to the unwinder code that it
+ * should switch to a different unwinder.
+ */
+extern int unwinder_faulted;
+
 #endif /* _LINUX_UNWINDER_H */
diff --git a/arch/sh/include/asm/watchdog.h b/arch/sh/include/asm/watchdog.h
index f024fed00a72..2fe7cee9e43a 100644
--- a/arch/sh/include/asm/watchdog.h
+++ b/arch/sh/include/asm/watchdog.h
@@ -13,10 +13,18 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
+#include <linux/io.h>
+
+#define WTCNT_HIGH      0x5a
+#define WTCSR_HIGH      0xa5
+
+#define WTCSR_CKS2      0x04
+#define WTCSR_CKS1      0x02
+#define WTCSR_CKS0      0x01
+
 #include <cpu/watchdog.h>
-#include <asm/io.h>
 
-/* 
+/*
  * See cpu-sh2/watchdog.h for explanation of this stupidity..
  */
 #ifndef WTCNT_R
@@ -27,13 +35,6 @@
 #  define WTCSR_R       WTCSR
 #endif
 
-#define WTCNT_HIGH      0x5a
-#define WTCSR_HIGH      0xa5
-
-#define WTCSR_CKS2      0x04
-#define WTCSR_CKS1      0x02
-#define WTCSR_CKS0      0x01
-
 /*
  * CKS0-2 supports a number of clock division ratios. At the time the watchdog
  * is enabled, it defaults to a 41 usec overflow period .. we overload this to