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 43910cdf78a..e121c30f797 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 c0171804016..d02c01b3e6b 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 00000000000..6ffb4b7a212
--- /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 8688a88303e..b16debfe8c1 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 d3d3837c5e1..ced6795891a 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 64fd0de24da..cc43a55e1fc 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 7e0bcc4d4a9..12f3a31f20a 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 c01d72cb675..5d3ccae4202 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 25348141674..5be45ea4dfe 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 0db19db913c..4c4429cda56 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 db1a4f3a755..017e0c1807b 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 bf7c4cbde37..6b272238a46 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 5ddd2359f3e..607d413f616 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 61d6ad93d78..925dd40d9d5 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 a751699afda..2b84bc916bc 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 3dc551453e2..1e65c07b3e1 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 f024fed00a7..2fe7cee9e43 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