---

yaml
---
r: 233223
b: refs/heads/master
c: 0c7fbbe
h: refs/heads/master
i:
  233221: 91bc005
  233219: 9a227ac
  233215: aee49e2
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 66e1cfe6d52c69d317e9df76ebc8538a34af0d51
+refs/heads/master: 0c7fbbe1a15e419eb2f1a687444330c4016fdb8f

trunk/arch/arm/Kconfig

@@ -1391,7 +1391,7 @@ config AEABI
 
 config OABI_COMPAT
 	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
-	depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
+	depends on AEABI && EXPERIMENTAL
 	default y
 	help
 	  This option preserves the old syscall interface along with the

trunk/arch/arm/kernel/head.S

@@ -391,7 +391,6 @@ ENDPROC(__turn_mmu_on)
 
 
 #ifdef CONFIG_SMP_ON_UP
-	__INIT
 __fixup_smp:
 	and	r3, r9, #0x000f0000	@ architecture version
 	teq	r3, #0x000f0000		@ CPU ID supported?
@@ -416,7 +415,18 @@ __fixup_smp_on_up:
 	sub	r3, r0, r3
 	add	r4, r4, r3
 	add	r5, r5, r3
-	b	__do_fixup_smp_on_up
+2:	cmp	r4, r5
+	movhs	pc, lr
+	ldmia	r4!, {r0, r6}
+ ARM(	str	r6, [r0, r3]	)
+ THUMB(	add	r0, r0, r3	)
+#ifdef __ARMEB__
+ THUMB(	mov	r6, r6, ror #16	)	@ Convert word order for big-endian.
+#endif
+ THUMB(	strh	r6, [r0], #2	)	@ For Thumb-2, store as two halfwords
+ THUMB(	mov	r6, r6, lsr #16	)	@ to be robust against misaligned r3.
+ THUMB(	strh	r6, [r0]	)
+	b	2b
 ENDPROC(__fixup_smp)
 
 	.align
@@ -430,31 +440,7 @@ smp_on_up:
 	ALT_SMP(.long	1)
 	ALT_UP(.long	0)
 	.popsection
-#endif
 
-	.text
-__do_fixup_smp_on_up:
-	cmp	r4, r5
-	movhs	pc, lr
-	ldmia	r4!, {r0, r6}
- ARM(	str	r6, [r0, r3]	)
- THUMB(	add	r0, r0, r3	)
-#ifdef __ARMEB__
- THUMB(	mov	r6, r6, ror #16	)	@ Convert word order for big-endian.
 #endif
- THUMB(	strh	r6, [r0], #2	)	@ For Thumb-2, store as two halfwords
- THUMB(	mov	r6, r6, lsr #16	)	@ to be robust against misaligned r3.
- THUMB(	strh	r6, [r0]	)
-	b	__do_fixup_smp_on_up
-ENDPROC(__do_fixup_smp_on_up)
-
-ENTRY(fixup_smp)
-	stmfd	sp!, {r4 - r6, lr}
-	mov	r4, r0
-	add	r5, r0, r1
-	mov	r3, #0
-	bl	__do_fixup_smp_on_up
-	ldmfd	sp!, {r4 - r6, pc}
-ENDPROC(fixup_smp)
 
 #include "head-common.S"

trunk/arch/arm/kernel/hw_breakpoint.c

@@ -137,10 +137,11 @@ static u8 get_debug_arch(void)
 	u32 didr;
 
 	/* Do we implement the extended CPUID interface? */
-	if (WARN_ONCE((((read_cpuid_id() >> 16) & 0xf) != 0xf),
-	    "CPUID feature registers not supported. "
-	    "Assuming v6 debug is present.\n"))
+	if (((read_cpuid_id() >> 16) & 0xf) != 0xf) {
+		pr_warning("CPUID feature registers not supported. "
+				"Assuming v6 debug is present.\n");
 		return ARM_DEBUG_ARCH_V6;
+	}
 
 	ARM_DBG_READ(c0, 0, didr);
 	return (didr >> 16) & 0xf;
@@ -151,12 +152,6 @@ u8 arch_get_debug_arch(void)
 	return debug_arch;
 }
 
-static int debug_arch_supported(void)
-{
-	u8 arch = get_debug_arch();
-	return arch >= ARM_DEBUG_ARCH_V6 && arch <= ARM_DEBUG_ARCH_V7_ECP14;
-}
-
 /* Determine number of BRP register available. */
 static int get_num_brp_resources(void)
 {
@@ -273,9 +268,6 @@ static int enable_monitor_mode(void)
 
 int hw_breakpoint_slots(int type)
 {
-	if (!debug_arch_supported())
-		return 0;
-
 	/*
 	 * We can be called early, so don't rely on
 	 * our static variables being initialised.
@@ -842,11 +834,11 @@ static void reset_ctrl_regs(void *unused)
 
 	/*
 	 * v7 debug contains save and restore registers so that debug state
-	 * can be maintained across low-power modes without leaving the debug
-	 * logic powered up. It is IMPLEMENTATION DEFINED whether we can access
-	 * the debug registers out of reset, so we must unlock the OS Lock
-	 * Access Register to avoid taking undefined instruction exceptions
-	 * later on.
+	 * can be maintained across low-power modes without leaving
+	 * the debug logic powered up. It is IMPLEMENTATION DEFINED whether
+	 * we can write to the debug registers out of reset, so we must
+	 * unlock the OS Lock Access Register to avoid taking undefined
+	 * instruction exceptions later on.
 	 */
 	if (debug_arch >= ARM_DEBUG_ARCH_V7_ECP14) {
 		/*
@@ -890,7 +882,7 @@ static int __init arch_hw_breakpoint_init(void)
 
 	debug_arch = get_debug_arch();
 
-	if (!debug_arch_supported()) {
+	if (debug_arch > ARM_DEBUG_ARCH_V7_ECP14) {
 		pr_info("debug architecture 0x%x unsupported.\n", debug_arch);
 		return 0;
 	}
@@ -907,18 +899,18 @@ static int __init arch_hw_breakpoint_init(void)
 		pr_info("%d breakpoint(s) reserved for watchpoint "
 				"single-step.\n", core_num_reserved_brps);
 
-	/*
-	 * Reset the breakpoint resources. We assume that a halting
-	 * debugger will leave the world in a nice state for us.
-	 */
-	on_each_cpu(reset_ctrl_regs, NULL, 1);
-
 	ARM_DBG_READ(c1, 0, dscr);
 	if (dscr & ARM_DSCR_HDBGEN) {
-		max_watchpoint_len = 4;
 		pr_warning("halting debug mode enabled. Assuming maximum "
-			   "watchpoint size of %u bytes.", max_watchpoint_len);
+				"watchpoint size of 4 bytes.");
 	} else {
+		/*
+		 * Reset the breakpoint resources. We assume that a halting
+		 * debugger will leave the world in a nice state for us.
+		 */
+		smp_call_function(reset_ctrl_regs, NULL, 1);
+		reset_ctrl_regs(NULL);
+
 		/* Work out the maximum supported watchpoint length. */
 		max_watchpoint_len = get_max_wp_len();
 		pr_info("maximum watchpoint size is %u bytes.\n",

trunk/arch/arm/kernel/module.c

@@ -22,7 +22,6 @@
 
 #include <asm/pgtable.h>
 #include <asm/sections.h>
-#include <asm/smp_plat.h>
 #include <asm/unwind.h>
 
 #ifdef CONFIG_XIP_KERNEL
@@ -269,28 +268,12 @@ struct mod_unwind_map {
 	const Elf_Shdr *txt_sec;
 };
 
-static const Elf_Shdr *find_mod_section(const Elf32_Ehdr *hdr,
-	const Elf_Shdr *sechdrs, const char *name)
-{
-	const Elf_Shdr *s, *se;
-	const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-
-	for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++)
-		if (strcmp(name, secstrs + s->sh_name) == 0)
-			return s;
-
-	return NULL;
-}
-
-extern void fixup_smp(const void *, unsigned long);
-
 int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
 		    struct module *mod)
 {
-	const Elf_Shdr * __maybe_unused s = NULL;
 #ifdef CONFIG_ARM_UNWIND
 	const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-	const Elf_Shdr *sechdrs_end = sechdrs + hdr->e_shnum;
+	const Elf_Shdr *s, *sechdrs_end = sechdrs + hdr->e_shnum;
 	struct mod_unwind_map maps[ARM_SEC_MAX];
 	int i;
 
@@ -332,9 +315,6 @@ int module_finalize(const Elf32_Ehdr *hdr, const Elf_Shdr *sechdrs,
 					         maps[i].txt_sec->sh_addr,
 					         maps[i].txt_sec->sh_size);
 #endif
-	s = find_mod_section(hdr, sechdrs, ".alt.smp.init");
-	if (s && !is_smp())
-		fixup_smp((void *)s->sh_addr, s->sh_size);
 	return 0;
 }
 

trunk/arch/arm/kernel/perf_event.c

@@ -700,7 +700,7 @@ user_backtrace(struct frame_tail __user *tail,
 	 * Frame pointers should strictly progress back up the stack
 	 * (towards higher addresses).
 	 */
-	if (tail + 1 >= buftail.fp)
+	if (tail >= buftail.fp)
 		return NULL;
 
 	return buftail.fp - 1;

trunk/arch/arm/mach-sa1100/collie.c

@@ -241,9 +241,6 @@ static struct locomo_platform_data locomo_info = {
 struct platform_device collie_locomo_device = {
 	.name		= "locomo",
 	.id		= 0,
-	.dev		= {
-		.platform_data	= &locomo_info,
-	},
 	.num_resources	= ARRAY_SIZE(locomo_resources),
 	.resource	= locomo_resources,
 };

trunk/arch/arm/mm/Kconfig

@@ -405,7 +405,7 @@ config CPU_V6
 config CPU_32v6K
 	bool "Support ARM V6K processor extensions" if !SMP
 	depends on CPU_V6 || CPU_V7
-	default y if SMP
+	default y if SMP && !(ARCH_MX3 || ARCH_OMAP2)
 	help
 	  Say Y here if your ARMv6 processor supports the 'K' extension.
 	  This enables the kernel to use some instructions not present
@@ -416,7 +416,7 @@ config CPU_32v6K
 # ARMv7
 config CPU_V7
 	bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
-	select CPU_32v6K
+	select CPU_32v6K if !ARCH_OMAP2
 	select CPU_32v7
 	select CPU_ABRT_EV7
 	select CPU_PABRT_V7
@@ -644,7 +644,7 @@ config ARM_THUMBEE
 
 config SWP_EMULATE
 	bool "Emulate SWP/SWPB instructions"
-	depends on !CPU_USE_DOMAINS && CPU_V7 && !CPU_V6
+	depends on CPU_V7 && !CPU_V6
 	select HAVE_PROC_CPU if PROC_FS
 	default y if SMP
 	help

trunk/arch/arm/oprofile/common.c

@@ -85,7 +85,7 @@ static struct frame_tail* user_backtrace(struct frame_tail *tail)
 
 	/* frame pointers should strictly progress back up the stack
 	 * (towards higher addresses) */
-	if (tail + 1 >= buftail[0].fp)
+	if (tail >= buftail[0].fp)
 		return NULL;
 
 	return buftail[0].fp-1;

trunk/arch/arm/plat-pxa/mfp.c

@@ -139,10 +139,11 @@ static const unsigned long mfpr_edge[] = {
 #define mfp_configured(p)	((p)->config != -1)
 
 /*
- * perform a read-back of any MFPR register to make sure the
+ * perform a read-back of any valid MFPR register to make sure the
  * previous writings are finished
  */
-#define mfpr_sync()	(void)__raw_readl(mfpr_mmio_base + 0)
+static unsigned long mfpr_off_readback;
+#define mfpr_sync()	(void)__raw_readl(mfpr_mmio_base + mfpr_off_readback)
 
 static inline void __mfp_config_run(struct mfp_pin *p)
 {
@@ -248,6 +249,9 @@ void __init mfp_init_addr(struct mfp_addr_map *map)
 
 	spin_lock_irqsave(&mfp_spin_lock, flags);
 
+	/* mfp offset for readback */
+	mfpr_off_readback = map[0].offset;
+
 	for (p = map; p->start != MFP_PIN_INVALID; p++) {
 		offset = p->offset;
 		i = p->start;