From abf015f04614a3a7da43d35b55edc90189af4e6a Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 7 Nov 2011 19:04:36 +0000 Subject: Revert "ARM: 7098/1: kdump: copy kernel relocation code at the kexec prepare stage" This reverts commit 2b034922af2caa19df86f0c502e76cb6f6e910f9. Will Deacon reports: This is causing kexec to fail. The symptoms are that the .init.text section is not loaded as part of the new kernel image, so when we try to do the SMP/UP fixups we hit a whole sea of poison left there by the previous kernel. So my guess is that machine_kexec_prepare *is* too early for preparing the reboot_code_buffer and, unless anybody has a good reason not to, I'd like to revert the patch causing these problems. Reported-by: Will Deacon --- arch/arm/kernel/machine_kexec.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index c1b4463dcc83..e59bbd496c39 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -32,24 +32,6 @@ static atomic_t waiting_for_crash_ipi; int machine_kexec_prepare(struct kimage *image) { - unsigned long page_list; - void *reboot_code_buffer; - page_list = image->head & PAGE_MASK; - - reboot_code_buffer = page_address(image->control_code_page); - - /* Prepare parameters for reboot_code_buffer*/ - kexec_start_address = image->start; - kexec_indirection_page = page_list; - kexec_mach_type = machine_arch_type; - kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; - - /* copy our kernel relocation code to the control code page */ - memcpy(reboot_code_buffer, - relocate_new_kernel, relocate_new_kernel_size); - - flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); return 0; } @@ -100,14 +82,31 @@ void (*kexec_reinit)(void); void machine_kexec(struct kimage *image) { + unsigned long page_list; unsigned long reboot_code_buffer_phys; void *reboot_code_buffer; + + page_list = image->head & PAGE_MASK; + /* we need both effective and real address here */ reboot_code_buffer_phys = page_to_pfn(image->control_code_page) << PAGE_SHIFT; reboot_code_buffer = page_address(image->control_code_page); + /* Prepare parameters for reboot_code_buffer*/ + kexec_start_address = image->start; + kexec_indirection_page = page_list; + kexec_mach_type = machine_arch_type; + kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; + + /* copy our kernel relocation code to the control code page */ + memcpy(reboot_code_buffer, + relocate_new_kernel, relocate_new_kernel_size); + + + flush_icache_range((unsigned long) reboot_code_buffer, + (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); if (kexec_reinit) -- cgit v1.2.3-59-g8ed1b From 8428e84d42179c2a00f5f6450866e70d802d1d05 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 7 Nov 2011 18:05:53 +0100 Subject: ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors Recent gcc versions generate unaligned accesses by default on ARMv6 and later processors. This patch ensures that the SCTLR.A bit is always cleared on such processors to avoid kernel traping before alignment_init() is called. Signed-off-by: Catalin Marinas Tested-by: John Linn Acked-by: Nicolas Pitre Cc: stable@vger.kernel.org Signed-off-by: Russell King --- arch/arm/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 566c54c2a1fe..08c82fd844a8 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -360,7 +360,7 @@ __secondary_data: * r13 = *virtual* address to jump to upon completion */ __enable_mmu: -#ifdef CONFIG_ALIGNMENT_TRAP +#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6 orr r0, r0, #CR_A #else bic r0, r0, #CR_A -- cgit v1.2.3-59-g8ed1b From 5f300acd8ae9f3d4585154370012ffc5c665330f Mon Sep 17 00:00:00 2001 From: Dirk B Date: Tue, 8 Nov 2011 18:16:39 +0100 Subject: ARM: 7152/1: distclean: Remove generated .dtb files The patch 'arm/dt: Add dtb make rule' adds support to create a .dtb file. But this is never removed afterwards. Remove the generated .dtb file if 'distclean' is called. Signed-off-by: Dirk Behme Acked-by: Rob Herring Acked-by: Grant Likely Cc: Shawn Guo Cc: Jason Liu Signed-off-by: Russell King --- arch/arm/boot/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 176062ac7f07..5df26a9976a2 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -65,6 +65,8 @@ $(obj)/%.dtb: $(src)/dts/%.dts $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) +clean-files := *.dtb + quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \ -C none -a $(LOADADDR) -e $(STARTADDR) \ -- cgit v1.2.3-59-g8ed1b From 8658ca730fa66fd6b8c559315915c774330f35bb Mon Sep 17 00:00:00 2001 From: "Maxin B. John" Date: Wed, 9 Nov 2011 11:12:58 +0100 Subject: ARM: 7153/1: mach-bcmring: fix build error in core.c Fixes this build error: CC arch/arm/mach-bcmring/core.o arch/arm/mach-bcmring/core.c: In function 'bcmring_init_timer': arch/arm/mach-bcmring/core.c:238: error: implicit declaration of function 'sp804_clockevents_register' make[1]: *** [arch/arm/mach-bcmring/core.o] Error 1 make: *** [arch/arm/mach-bcmring] Error 2 Signed-off-by: Maxin B. John Reviewed-by: Jiandong Zheng Signed-off-by: Russell King --- arch/arm/mach-bcmring/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index 43eadbcc29ed..430da120a297 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -235,7 +235,7 @@ void __init bcmring_init_timer(void) */ bcmring_clocksource_init(); - sp804_clockevents_register(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); + sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); } struct sys_timer bcmring_timer = { -- cgit v1.2.3-59-g8ed1b From 5fc86281b9eba5eb9cfab999bcb00deb335da762 Mon Sep 17 00:00:00 2001 From: "Maxin B. John" Date: Wed, 9 Nov 2011 11:27:36 +0100 Subject: ARM: 7154/1: mach-bcmring: fix build error in dma.c Fixes this build error: CC arch/arm/mach-bcmring/dma.o arch/arm/mach-bcmring/dma.c: In function 'dma_request_channel_dbg': arch/arm/mach-bcmring/dma.c:1022: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) arch/arm/mach-bcmring/dma.c:1022: error: (Each undeclared identifier is reported only once arch/arm/mach-bcmring/dma.c:1022: error: for each function it appears in.) arch/arm/mach-bcmring/dma.c:1024: error: implicit declaration of function 'schedule' arch/arm/mach-bcmring/dma.c:1027: error: implicit declaration of function 'signal_pending' arch/arm/mach-bcmring/dma.c: In function 'dma_free_channel': arch/arm/mach-bcmring/dma.c:1092: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) arch/arm/mach-bcmring/dma.c: In function 'dma_map_add_region': arch/arm/mach-bcmring/dma.c:1946: error: dereferencing pointer to incomplete type arch/arm/mach-bcmring/dma.c:1948: error: dereferencing pointer to incomplete type arch/arm/mach-bcmring/dma.c:1955: error: dereferencing pointer to incomplete type make[1]: *** [arch/arm/mach-bcmring/dma.o] Error 1 make: *** [arch/arm/mach-bcmring] Error 2 Signed-off-by: Maxin B. John Reviewed-by: Jiandong Zheng Signed-off-by: Russell King --- arch/arm/mach-bcmring/dma.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c index b52b8de91bde..f4d4d6d174d0 100644 --- a/arch/arm/mach-bcmring/dma.c +++ b/arch/arm/mach-bcmring/dma.c @@ -36,6 +36,7 @@ #include #include #include +#include #include /* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */ -- cgit v1.2.3-59-g8ed1b From 1a1f2be2a4d7f6f538169dca534c94b221b21923 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 9 Nov 2011 19:13:43 +0100 Subject: ARM: 7155/1: arch.h: Declare 'pt_regs' locally Fix the following warning when building imx_v4_v5_defconfig target: CC arch/arm/mach-imx/mach-imx27ipcam.o In file included from arch/arm/mach-imx/mach-imx27ipcam.c:18: /home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: 'struct pt_regs' declared inside parameter list /home/fabio/linus/linux-2.6/arch/arm/include/asm/mach/arch.h:47: warning: its scope is only this definition or declaration, which is probably not what you want arch/arm/mach-imx/mach-imx27ipcam.c:78: warning: initialization from incompatible pointer type Declare 'struct pt_regs' locally. Cc: Eric Miao Signed-off-by: Fabio Estevam Signed-off-by: Russell King --- arch/arm/include/asm/mach/arch.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 7d19425dd496..2b0efc3104ac 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -13,6 +13,7 @@ struct tag; struct meminfo; struct sys_timer; +struct pt_regs; struct machine_desc { unsigned int nr; /* architecture number */ -- cgit v1.2.3-59-g8ed1b From be2658ffe1d2a4ab4e045b22a317459595abc2c4 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 10 Nov 2011 00:43:52 +0100 Subject: PM / shmobile: Don't skip debugging output in pd_power_up() Don't skip debugging output upon earlier loop termination in pd_power_up(). Signed-off-by: Guennadi Liakhovetski Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/pm-sh7372.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 79612737c5b2..e26138352f07 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -123,13 +123,13 @@ static int pd_power_up(struct generic_pm_domain *genpd) for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) { if (!(__raw_readl(SWUCR) & mask)) - goto out; + break; if (retry_count > PSTR_RETRIES) udelay(PSTR_DELAY_US); else cpu_relax(); } - if (__raw_readl(SWUCR) & mask) + if (!retry_count) ret = -EIO; if (!sh7372_pd->no_debug) -- cgit v1.2.3-59-g8ed1b From 056879d2f244001b2888cdc8cf868c33ca8b23a0 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 10 Nov 2011 00:44:01 +0100 Subject: ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix If "no_suspend_irq" is used on the sh7372 Mackerel board with v3.2-rc1 then Suspend-to-RAM fails because the serial console tries to write to the SCIF driver even though the power domain is turned off. This patch checks the state of "console_suspend_enabled" to see if A3SP should be forced enabled. Signed-off-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/pm-sh7372.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index e26138352f07..78c98a847433 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -469,6 +470,11 @@ void __init sh7372_pm_init(void) /* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */ __raw_writel(0, PDNSEL); + /* serial consoles make use of SCIF hardware located in A3SP, + * keep such power domain on if "no_console_suspend" is set. + */ + sh7372_a3sp.stay_on = !console_suspend_enabled; + sh7372_suspend_init(); sh7372_cpuidle_init(); } -- cgit v1.2.3-59-g8ed1b From e7c86c7b264c57b4d6d121c48ce3be98a2e6f8c5 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 9 Nov 2011 22:10:00 +0100 Subject: ARM: 7156/1: l2x0: fix compile error on !CONFIG_USE_OF fae2b89ab1 (ARM: l2x0: add empty l2x0_of_init) adds a static inline function that returns -ENODEV, but at least on tegra cache-l2x0.h is included without errno.h being pulled in first, resulting in compile errors if OF isn't enabled: In file included from arch/arm/mach-tegra/common.c:26: arch/arm/include/asm/hardware/cache-l2x0.h: In function 'l2x0_of_init': arch/arm/include/asm/hardware/cache-l2x0.h:110: error: 'ENODEV' undeclared (first use in this function) arch/arm/include/asm/hardware/cache-l2x0.h:110: error: (Each undeclared identifier is reported only once arch/arm/include/asm/hardware/cache-l2x0.h:110: error: for each function it appears in.) Add errno.h to the include file to make it self-contained. Signed-off-by: Olof Johansson Acked-by: Rob Herring Signed-off-by: Russell King --- arch/arm/include/asm/hardware/cache-l2x0.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 1db1143a9483..7df239bcdf27 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -20,6 +20,8 @@ #ifndef __ASM_ARM_HARDWARE_L2X0_H #define __ASM_ARM_HARDWARE_L2X0_H +#include + #define L2X0_CACHE_ID 0x000 #define L2X0_CACHE_TYPE 0x004 #define L2X0_CTRL 0x100 -- cgit v1.2.3-59-g8ed1b From a6dc54460e5405248773abef704c7980ab31af77 Mon Sep 17 00:00:00 2001 From: wanzongshun Date: Thu, 10 Nov 2011 07:05:41 +0100 Subject: ARM: 7157/1: fix a building WARNING for nuc900 This patch is to fix a WARNING which is the "modpost: Found 1 section mismatch(es)" for nuc900 platform. Signed-off-by: Wan ZongShun Signed-off-by: Russell King --- arch/arm/mach-w90x900/dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c index 7a1fa6adb7c3..5b0c38abacc1 100644 --- a/arch/arm/mach-w90x900/dev.c +++ b/arch/arm/mach-w90x900/dev.c @@ -422,7 +422,7 @@ struct platform_device nuc900_device_kpi = { /* LCD controller*/ -static struct nuc900fb_display __initdata nuc900_lcd_info[] = { +static struct nuc900fb_display nuc900_lcd_info[] = { /* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */ [0] = { .type = LCM_DCCS_VA_SRC_RGB565, @@ -445,7 +445,7 @@ static struct nuc900fb_display __initdata nuc900_lcd_info[] = { }, }; -static struct nuc900fb_mach_info nuc900_fb_info __initdata = { +static struct nuc900fb_mach_info nuc900_fb_info = { #if defined(CONFIG_GPM1040A0_320X240) .displays = &nuc900_lcd_info[0], #else -- cgit v1.2.3-59-g8ed1b From 798681bf2127e60f16e9decc5e3a0b901f3ff3fe Mon Sep 17 00:00:00 2001 From: wanzongshun Date: Thu, 10 Nov 2011 07:06:29 +0100 Subject: ARM: 7158/1: add new MFP implement for NUC900 This patch is to add new MFP implement in mfp.c,since nuc900 mmc driver needs this function support. Signed-off-by: Wan ZongShun Signed-off-by: Russell King --- arch/arm/mach-w90x900/include/mach/mfp.h | 3 +- arch/arm/mach-w90x900/include/mach/nuc900_spi.h | 2 +- arch/arm/mach-w90x900/mfp.c | 48 +++++++++++++++++++++---- 3 files changed, 45 insertions(+), 8 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-w90x900/include/mach/mfp.h b/arch/arm/mach-w90x900/include/mach/mfp.h index 94c0e71617c6..23ef1f573abd 100644 --- a/arch/arm/mach-w90x900/include/mach/mfp.h +++ b/arch/arm/mach-w90x900/include/mach/mfp.h @@ -19,6 +19,7 @@ extern void mfp_set_groupf(struct device *dev); extern void mfp_set_groupc(struct device *dev); extern void mfp_set_groupi(struct device *dev); -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); +extern void mfp_set_groupd(struct device *dev, const char *subname); #endif /* __ASM_ARCH_MFP_H */ diff --git a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h index bd94819e314f..2c4e0c128501 100644 --- a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h +++ b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h @@ -14,7 +14,7 @@ #ifndef __ASM_ARCH_SPI_H #define __ASM_ARCH_SPI_H -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); struct nuc900_spi_info { unsigned int num_cs; diff --git a/arch/arm/mach-w90x900/mfp.c b/arch/arm/mach-w90x900/mfp.c index fb7fb627b1a5..9dd74612bb87 100644 --- a/arch/arm/mach-w90x900/mfp.c +++ b/arch/arm/mach-w90x900/mfp.c @@ -26,10 +26,8 @@ #define REG_MFSEL (W90X900_VA_GCR + 0xC) #define GPSELF (0x01 << 1) - #define GPSELC (0x03 << 2) -#define ENKPI (0x02 << 2) -#define ENNAND (0x01 << 2) +#define GPSELD (0x0f << 4) #define GPSELEI0 (0x01 << 26) #define GPSELEI1 (0x01 << 27) @@ -37,11 +35,16 @@ #define GPIOG0TO1 (0x03 << 14) #define GPIOG2TO3 (0x03 << 16) #define GPIOG22TO23 (0x03 << 22) +#define GPIOG18TO20 (0x07 << 18) #define ENSPI (0x0a << 14) #define ENI2C0 (0x01 << 14) #define ENI2C1 (0x01 << 16) #define ENAC97 (0x02 << 22) +#define ENSD1 (0x02 << 18) +#define ENSD0 (0x0a << 4) +#define ENKPI (0x02 << 2) +#define ENNAND (0x01 << 2) static DEFINE_MUTEX(mfp_mutex); @@ -127,16 +130,19 @@ void mfp_set_groupi(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupi); -void mfp_set_groupg(struct device *dev) +void mfp_set_groupg(struct device *dev, const char *subname) { unsigned long mfpen; const char *dev_id; - BUG_ON(!dev); + BUG_ON((!dev) && (!subname)); mutex_lock(&mfp_mutex); - dev_id = dev_name(dev); + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); mfpen = __raw_readl(REG_MFSEL); @@ -152,6 +158,9 @@ void mfp_set_groupg(struct device *dev) } else if (strcmp(dev_id, "nuc900-audio") == 0) { mfpen &= ~(GPIOG22TO23); mfpen |= ENAC97;/*enable AC97*/ + } else if (strcmp(dev_id, "nuc900-mmc-port1") == 0) { + mfpen &= ~(GPIOG18TO20); + mfpen |= (ENSD1 | 0x01);/*enable sd1*/ } else { mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/ } @@ -162,3 +171,30 @@ void mfp_set_groupg(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupg); +void mfp_set_groupd(struct device *dev, const char *subname) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON((!dev) && (!subname)); + + mutex_lock(&mfp_mutex); + + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-mmc-port0") == 0) { + mfpen &= ~GPSELD;/*enable sd0*/ + mfpen |= ENSD0; + } else + mfpen &= (~GPSELD); + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupd); -- cgit v1.2.3-59-g8ed1b From a34dbfb03f472ad3e063d3b1d1e88f7ef8f88bf1 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 11 Nov 2011 11:35:58 +0100 Subject: ARM: 7160/1: setup: avoid overflowing {elf,arch}_name from proc_info_list setup_processor copies the arch_name and elf_name fields out of the selected proc_info_list into two fixed size buffers. Since the proc_info_list structure is defined in a proc_*.S assembly file, this can lead to subtle errors if the strings defined there are too long (for example, corrupting the machine ID). This patch uses snprintf instead of sprintf to ensure that these buffers are not overrun. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/setup.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7e7977ab994f..3448a3f9cc8c 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -461,8 +461,10 @@ static void __init setup_processor(void) cpu_name, read_cpuid_id(), read_cpuid_id() & 15, proc_arch[cpu_architecture()], cr_alignment); - sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS); - sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS); + snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c", + list->arch_name, ENDIANNESS); + snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c", + list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; #ifndef CONFIG_ARM_THUMB elf_hwcap &= ~HWCAP_THUMB; -- cgit v1.2.3-59-g8ed1b From bc9f54498eadc5254378e376e8d2111cfd30b229 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 11 Nov 2011 13:10:08 +0100 Subject: PM / shmobile: Avoid restoring the INTCS state during initialization The SH7372 PM domain initialization routine calls pd_power_up() that executes the domain's .resume() callback, if present, and for the A4R domain this callback attepmts to restore the INTCS state from uninitialized data. To avoid that, introduce __pd_power_up() that will only execute the domain's .resume() callback if its second argument is 'true' and make the SH7372 PM domain initialization use it with 'false' as its second argument. Redefine pd_power_up() as a wrapper around __pd_power_up(). Reported-by: Guennadi Liakhovetski Tracked-down-by: Magnus Damm Signed-off-by: Rafael J. Wysocki Acked-by: Magnus Damm --- arch/arm/mach-shmobile/pm-sh7372.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 78c98a847433..1ec35ebe2376 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -107,9 +107,8 @@ static int pd_power_down(struct generic_pm_domain *genpd) return 0; } -static int pd_power_up(struct generic_pm_domain *genpd) +static int __pd_power_up(struct sh7372_pm_domain *sh7372_pd, bool do_resume) { - struct sh7372_pm_domain *sh7372_pd = to_sh7372_pd(genpd); unsigned int mask = 1 << sh7372_pd->bit_shift; unsigned int retry_count; int ret = 0; @@ -138,12 +137,17 @@ static int pd_power_up(struct generic_pm_domain *genpd) mask, __raw_readl(PSTR)); out: - if (ret == 0 && sh7372_pd->resume) + if (ret == 0 && sh7372_pd->resume && do_resume) sh7372_pd->resume(); return ret; } +static int pd_power_up(struct generic_pm_domain *genpd) +{ + return __pd_power_up(to_sh7372_pd(genpd), true); +} + static void sh7372_a4r_suspend(void) { sh7372_intcs_suspend(); @@ -175,7 +179,7 @@ void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd) genpd->active_wakeup = pd_active_wakeup; genpd->power_off = pd_power_down; genpd->power_on = pd_power_up; - genpd->power_on(&sh7372_pd->genpd); + __pd_power_up(sh7372_pd, false); } void sh7372_add_device_to_domain(struct sh7372_pm_domain *sh7372_pd, -- cgit v1.2.3-59-g8ed1b From e5489847d6fc0ff176048b6e1cf5034507bf703a Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 17 Nov 2011 16:58:00 +0000 Subject: ARM: wire up process_vm_writev and process_vm_readv syscalls These two syscalls were introduced during the last merge window. Add the entries into the ARM call tables for them. Signed-off-by: Russell King --- arch/arm/include/asm/unistd.h | 2 ++ arch/arm/kernel/calls.S | 2 ++ 2 files changed, 4 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index c60a2944f95b..4a1123783806 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -402,6 +402,8 @@ #define __NR_syncfs (__NR_SYSCALL_BASE+373) #define __NR_sendmmsg (__NR_SYSCALL_BASE+374) #define __NR_setns (__NR_SYSCALL_BASE+375) +#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376) +#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 9943e9e74a1b..463ff4a0ec8a 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -385,6 +385,8 @@ CALL(sys_syncfs) CALL(sys_sendmmsg) /* 375 */ CALL(sys_setns) + CALL(sys_process_vm_readv) + CALL(sys_process_vm_writev) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted -- cgit v1.2.3-59-g8ed1b From 88995e809f8a8115f30db24696c9137aad93d570 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 17 Nov 2011 21:39:55 +0100 Subject: PM / shmobile: Fix build of sh7372_pm_init() for CONFIG_PM unset Fix build regression introduced by commit 056879d2f244001b2888cdc8cf (ARM: mach-shmobile: sh7372 A3SP no_suspend_console fix) by moving the intialization of the A3SP domain to a separate function and providing an empty definition of it for CONFIG_PM unset. Reported-and-tested-by: Guennadi Liakhovetski Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/pm-sh7372.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 1ec35ebe2376..f15f07e15856 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -232,11 +232,23 @@ struct sh7372_pm_domain sh7372_a3sp = { .no_debug = true, }; +static void sh7372_a3sp_init(void) +{ + /* serial consoles make use of SCIF hardware located in A3SP, + * keep such power domain on if "no_console_suspend" is set. + */ + sh7372_a3sp.stay_on = !console_suspend_enabled; +} + struct sh7372_pm_domain sh7372_a3sg = { .bit_shift = 13, }; -#endif /* CONFIG_PM */ +#else /* !CONFIG_PM */ + +static inline void sh7372_a3sp_init(void) {} + +#endif /* !CONFIG_PM */ #if defined(CONFIG_SUSPEND) || defined(CONFIG_CPU_IDLE) static int sh7372_do_idle_core_standby(unsigned long unused) @@ -474,10 +486,7 @@ void __init sh7372_pm_init(void) /* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */ __raw_writel(0, PDNSEL); - /* serial consoles make use of SCIF hardware located in A3SP, - * keep such power domain on if "no_console_suspend" is set. - */ - sh7372_a3sp.stay_on = !console_suspend_enabled; + sh7372_a3sp_init(); sh7372_suspend_init(); sh7372_cpuidle_init(); -- cgit v1.2.3-59-g8ed1b