Merge branch 'master' into for-linus

2010-03-08 20:24:11 +00:00 · 2010-03-08 20:24:11 +00:00 · 91e013827c
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@ -170,8 +170,8 @@ not_angel:

 		.text
 		adr	r0, LC0
- ARM(		ldmia	r0, {r1, r2, r3, r4, r5, r6, ip, sp}	)
- THUMB(		ldmia	r0, {r1, r2, r3, r4, r5, r6, ip}	)
+ ARM(		ldmia	r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp})
+ THUMB(		ldmia	r0, {r1, r2, r3, r4, r5, r6, r11, ip}	)
 THUMB(		ldr	sp, [r0, #28]				)
 		subs	r0, r0, r1		@ calculate the delta offset

@ -182,12 +182,13 @@ not_angel:
 		/*
 		 * We're running at a different address.  We need to fix
 		 * up various pointers:
-		 *   r5 - zImage base address
-		 *   r6 - GOT start
+		 *   r5 - zImage base address (_start)
+		 *   r6 - size of decompressed image
+		 *   r11 - GOT start
 		 *   ip - GOT end
 		 */
 		add	r5, r5, r0
-		add	r6, r6, r0
+		add	r11, r11, r0
 		add	ip, ip, r0

 #ifndef CONFIG_ZBOOT_ROM
@ -205,10 +206,10 @@ not_angel:
 		/*
 		 * Relocate all entries in the GOT table.
 		 */
-1:		ldr	r1, [r6, #0]		@ relocate entries in the GOT
+1:		ldr	r1, [r11, #0]		@ relocate entries in the GOT
 		add	r1, r1, r0		@ table.  This fixes up the
-		str	r1, [r6], #4		@ C references.
-		cmp	r6, ip
+		str	r1, [r11], #4		@ C references.
+		cmp	r11, ip
 		blo	1b
 #else

@ -216,12 +217,12 @@ not_angel:
 		 * Relocate entries in the GOT table.  We only relocate
 		 * the entries that are outside the (relocated) BSS region.
 		 */
-1:		ldr	r1, [r6, #0]		@ relocate entries in the GOT
+1:		ldr	r1, [r11, #0]		@ relocate entries in the GOT
 		cmp	r1, r2			@ entry < bss_start ||
 		cmphs	r3, r1			@ _end < entry
 		addlo	r1, r1, r0		@ table.  This fixes up the
-		str	r1, [r6], #4		@ C references.
-		cmp	r6, ip
+		str	r1, [r11], #4		@ C references.
+		cmp	r11, ip
 		blo	1b
 #endif

@ -247,6 +248,7 @@ not_relocated:	mov	r0, #0
 * Check to see if we will overwrite ourselves.
 *   r4 = final kernel address
 *   r5 = start of this image
+ *   r6 = size of decompressed image
 *   r2 = end of malloc space (and therefore this image)
 * We basically want:
 *   r4 >= r2 -> OK
@ -254,8 +256,7 @@ not_relocated:	mov	r0, #0
 */
 		cmp	r4, r2
 		bhs	wont_overwrite
-		sub	r3, sp, r5		@ > compressed kernel size
-		add	r0, r4, r3, lsl #2	@ allow for 4x expansion
+		add	r0, r4, r6
 		cmp	r0, r5
 		bls	wont_overwrite

@ -271,7 +272,6 @@ not_relocated:	mov	r0, #0
 * r1-r3  = unused
 * r4     = kernel execution address
 * r5     = decompressed kernel start
- * r6     = processor ID
 * r7     = architecture ID
 * r8     = atags pointer
 * r9-r12,r14 = corrupted
@ -312,7 +312,8 @@ LC0:		.word	LC0			@ r1
 		.word	_end			@ r3
 		.word	zreladdr		@ r4
 		.word	_start			@ r5
-		.word	_got_start		@ r6
+		.word	_image_size		@ r6
+		.word	_got_start		@ r11
 		.word	_got_end		@ ip
 		.word	user_stack+4096		@ sp
 LC1:		.word	reloc_end - reloc_start
@ -336,7 +337,6 @@ params:		ldr	r0, =params_phys
 *
 * On entry,
 *  r4 = kernel execution address
- *  r6 = processor ID
 *  r7 = architecture number
 *  r8 = atags pointer
 *  r9 = run-time address of "start"  (???)
@ -542,7 +542,6 @@ __common_mmu_cache_on:
 * r1-r3  = unused
 * r4     = kernel execution address
 * r5     = decompressed kernel start
- * r6     = processor ID
 * r7     = architecture ID
 * r8     = atags pointer
 * r9-r12,r14 = corrupted
@ -581,19 +580,19 @@ call_kernel:	bl	cache_clean_flush
 *  r1  = corrupted
 *  r2  = corrupted
 *  r3  = block offset
- *  r6  = corrupted
+ *  r9  = corrupted
 *  r12 = corrupted
 */

 call_cache_fn:	adr	r12, proc_types
 #ifdef CONFIG_CPU_CP15
-		mrc	p15, 0, r6, c0, c0	@ get processor ID
+		mrc	p15, 0, r9, c0, c0	@ get processor ID
 #else
-		ldr	r6, =CONFIG_PROCESSOR_ID
+		ldr	r9, =CONFIG_PROCESSOR_ID
 #endif
 1:		ldr	r1, [r12, #0]		@ get value
 		ldr	r2, [r12, #4]		@ get mask
-		eor	r1, r1, r6		@ (real ^ match)
+		eor	r1, r1, r9		@ (real ^ match)
 		tst	r1, r2			@       & mask
 ARM(		addeq	pc, r12, r3		) @ call cache function
 THUMB(		addeq	r12, r3			)
@ -778,8 +777,7 @@ proc_types:
 * Turn off the Cache and MMU.  ARMv3 does not support
 * reading the control register, but ARMv4 does.
 *
- * On entry,  r6 = processor ID
- * On exit,   r0, r1, r2, r3, r12 corrupted
+ * On exit, r0, r1, r2, r3, r9, r12 corrupted
 * This routine must preserve: r4, r6, r7
 */
 		.align	5
@ -852,10 +850,8 @@ __armv3_mmu_cache_off:
 /*
 * Clean and flush the cache to maintain consistency.
 *
- * On entry,
- *  r6 = processor ID
 * On exit,
- *  r1, r2, r3, r11, r12 corrupted
+ *  r1, r2, r3, r9, r11, r12 corrupted
 * This routine must preserve:
 *  r0, r4, r5, r6, r7
 */
@ -967,7 +963,7 @@ __armv4_mmu_cache_flush:
 		mov	r2, #64*1024		@ default: 32K dcache size (*2)
 		mov	r11, #32		@ default: 32 byte line size
 		mrc	p15, 0, r3, c0, c0, 1	@ read cache type
-		teq	r3, r6			@ cache ID register present?
+		teq	r3, r9			@ cache ID register present?
 		beq	no_cache_id
 		mov	r1, r3, lsr #18
 		and	r1, r1, #7
--- a/arch/arm/boot/compressed/vmlinux.lds.in
+++ b/arch/arm/boot/compressed/vmlinux.lds.in
@ -43,6 +43,9 @@ SECTIONS

  _etext = .;

+  /* Assume size of decompressed image is 4x the compressed image */
+  _image_size = (_etext - _text) * 4;
+
  _got_start = .;
  .got			: { *(.got) }
  _got_end = .;
--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@ -359,7 +359,9 @@ void unwind_backtrace(struct pt_regs *regs, struct task_struct *tsk)
 		frame.fp = regs->ARM_fp;
 		frame.sp = regs->ARM_sp;
 		frame.lr = regs->ARM_lr;
-		frame.pc = regs->ARM_pc;
+		/* PC might be corrupted, use LR in that case. */
+		frame.pc = kernel_text_address(regs->ARM_pc)
+			 ? regs->ARM_pc : regs->ARM_lr;
 	} else if (tsk == current) {
 		frame.fp = (unsigned long)__builtin_frame_address(0);
 		frame.sp = current_sp;
--- a/arch/arm/mach-ux500/include/mach/hardware.h
+++ b/arch/arm/mach-ux500/include/mach/hardware.h
@ -68,12 +68,12 @@
 #define U8500_PKAM_BASE		(U8500_PER6_BASE + 0x2000)
 #define U8500_CRYPTO0_BASE	(U8500_PER6_BASE + 0xa000)
 #define U8500_CRYPTO1_BASE	(U8500_PER6_BASE + 0xb000)
-#define U8500_CLKRST6_BASE	(U8500_PER7_BASE + 0xf000)
+#define U8500_CLKRST6_BASE	(U8500_PER6_BASE + 0xf000)

 /* per5 base addressess */
 #define U8500_USBOTG_BASE	(U8500_PER5_BASE + 0x00000)
 #define U8500_GPIO5_BASE	(U8500_PER5_BASE + 0x1e000)
-#define U8500_CLKRST5_BASE	(U8500_PER7_BASE + 0x1f000)
+#define U8500_CLKRST5_BASE	(U8500_PER5_BASE + 0x1f000)

 /* per4 base addressess */
 #define U8500_BACKUPRAM0_BASE	(U8500_PER4_BASE + 0x0000)
@ -95,7 +95,7 @@
 #define U8500_UART2_BASE	(U8500_PER3_BASE + 0x7000)
 #define U8500_SDI5_BASE		(U8500_PER3_BASE + 0x8000)
 #define U8500_GPIO3_BASE	(U8500_PER3_BASE + 0xe000)
-#define U8500_CLKRST3_BASE	(U8500_PER7_BASE + 0xf000)
+#define U8500_CLKRST3_BASE	(U8500_PER3_BASE + 0xf000)

 /* per2 base addressess */
 #define U8500_I2C3_BASE		(U8500_PER2_BASE + 0x0000)
@ -123,7 +123,7 @@
 #define U8500_SPI3_BASE		(U8500_PER1_BASE + 0x9000)
 #define U8500_SLIM0_BASE	(U8500_PER1_BASE + 0xa000)
 #define U8500_GPIO1_BASE	(U8500_PER1_BASE + 0xe000)
-#define U8500_CLKRST1_BASE	(U8500_PER2_BASE + 0xf000)
+#define U8500_CLKRST1_BASE	(U8500_PER1_BASE + 0xf000)

 /* ST-Ericsson modified pl022 id */
 #define SSP_PER_ID		0x01080022
--- a/drivers/mtd/maps/pismo.c
+++ b/drivers/mtd/maps/pismo.c
@ -118,7 +118,7 @@ static int __devinit pismo_add_device(struct pismo_data *pismo, int i,
 {
 	struct platform_device *dev;
 	struct resource res = { };
-	phys_addr_t base = region.base;
+	phys_addr_t base = region->base;
 	int ret;

 	if (base == ~0)