diff options
Diffstat (limited to 'arch')
43 files changed, 213 insertions, 85 deletions
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index 9854ff4279e0..11828e632532 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -176,7 +176,6 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y CONFIG_USB_DEVICEFS=y CONFIG_USB_SUSPEND=y CONFIG_USB_MON=y -CONFIG_USB_EHCI_HCD=y CONFIG_USB_WDM=y CONFIG_USB_STORAGE=y CONFIG_USB_LIBUSUAL=y diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c index e9fafcf163de..373c3c00d24c 100644 --- a/arch/arm/mach-exynos/pm_domains.c +++ b/arch/arm/mach-exynos/pm_domains.c @@ -119,7 +119,9 @@ static __init void exynos_pm_add_dev_to_genpd(struct platform_device *pdev, struct exynos_pm_domain *pd) { if (pdev->dev.bus) { - if (pm_genpd_add_device(&pd->pd, &pdev->dev)) + if (!pm_genpd_add_device(&pd->pd, &pdev->dev)) + pm_genpd_dev_need_restore(&pdev->dev, true); + else pr_info("%s: error in adding %s device to %s power" "domain\n", __func__, dev_name(&pdev->dev), pd->name); @@ -151,9 +153,12 @@ static __init int exynos4_pm_init_power_domain(void) if (of_have_populated_dt()) return exynos_pm_dt_parse_domains(); - for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++) - pm_genpd_init(&exynos4_pm_domains[idx]->pd, NULL, - exynos4_pm_domains[idx]->is_off); + for (idx = 0; idx < ARRAY_SIZE(exynos4_pm_domains); idx++) { + struct exynos_pm_domain *pd = exynos4_pm_domains[idx]; + int on = __raw_readl(pd->base + 0x4) & S5P_INT_LOCAL_PWR_EN; + + pm_genpd_init(&pd->pd, NULL, !on); + } #ifdef CONFIG_S5P_DEV_FIMD0 exynos_pm_add_dev_to_genpd(&s5p_device_fimd0, &exynos4_pd_lcd0); diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index f7b58609bad8..6227e9505c2d 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -31,12 +31,16 @@ * * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this * clockdomain. (Currently, this applies to OMAP3 clockdomains only.) + * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is + * active whenever the MPU is active. True for interconnects and + * the WKUP clockdomains. */ #define CLKDM_CAN_FORCE_SLEEP (1 << 0) #define CLKDM_CAN_FORCE_WAKEUP (1 << 1) #define CLKDM_CAN_ENABLE_AUTO (1 << 2) #define CLKDM_CAN_DISABLE_AUTO (1 << 3) #define CLKDM_NO_AUTODEPS (1 << 4) +#define CLKDM_ACTIVE_WITH_MPU (1 << 5) #define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) #define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c index 839145e1cfbe..4972219653ce 100644 --- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c +++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c @@ -88,4 +88,5 @@ struct clockdomain wkup_common_clkdm = { .name = "wkup_clkdm", .pwrdm = { .name = "wkup_pwrdm" }, .dep_bit = OMAP_EN_WKUP_SHIFT, + .flags = CLKDM_ACTIVE_WITH_MPU, }; diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index c53425847493..7f2133abe7d3 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -381,7 +381,7 @@ static struct clockdomain l4_wkup_44xx_clkdm = { .cm_inst = OMAP4430_PRM_WKUP_CM_INST, .clkdm_offs = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS, .dep_bit = OMAP4430_L4WKUP_STATDEP_SHIFT, - .flags = CLKDM_CAN_HWSUP, + .flags = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU, }; static struct clockdomain emu_sys_44xx_clkdm = { diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 773193670ea2..2d710f50fca2 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap * _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG * @oh: struct omap_hwmod * * - * If module is marked as SWSUP_SIDLE, force the module out of slave - * idle; otherwise, configure it for smart-idle. If module is marked - * as SWSUP_MSUSPEND, force the module out of master standby; - * otherwise, configure it for smart-standby. No return value. + * Ensure that the OCP_SYSCONFIG register for the IP block represented + * by @oh is set to indicate to the PRCM that the IP block is active. + * Usually this means placing the module into smart-idle mode and + * smart-standby, but if there is a bug in the automatic idle handling + * for the IP block, it may need to be placed into the force-idle or + * no-idle variants of these modes. No return value. */ static void _enable_sysc(struct omap_hwmod *oh) { u8 idlemode, sf; u32 v; + bool clkdm_act; if (!oh->class->sysc) return; @@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh) sf = oh->class->sysc->sysc_flags; if (sf & SYSC_HAS_SIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? - HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART; + clkdm_act = ((oh->clkdm && + oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) || + (oh->_clk && oh->_clk->clkdm && + oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU)); + if (clkdm_act && !(oh->class->sysc->idlemodes & + (SIDLE_SMART | SIDLE_SMART_WKUP))) + idlemode = HWMOD_IDLEMODE_FORCE; + else + idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? + HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART; _set_slave_idlemode(oh, idlemode, &v); } @@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh) sf = oh->class->sysc->sysc_flags; if (sf & SYSC_HAS_SIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? - HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART; + /* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */ + if (oh->flags & HWMOD_SWSUP_SIDLE || + !(oh->class->sysc->idlemodes & + (SIDLE_SMART | SIDLE_SMART_WKUP))) + idlemode = HWMOD_IDLEMODE_FORCE; + else + idlemode = HWMOD_IDLEMODE_SMART; _set_slave_idlemode(oh, idlemode, &v); } diff --git a/arch/arm/mach-s3c24xx/clock-s3c2440.c b/arch/arm/mach-s3c24xx/clock-s3c2440.c index 414364eb426c..cb2883d553b5 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2440.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2440.c @@ -106,7 +106,7 @@ static struct clk s3c2440_clk_cam_upll = { static struct clk s3c2440_clk_ac97 = { .name = "ac97", .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2440_CLKCON_CAMERA, + .ctrlbit = S3C2440_CLKCON_AC97, }; static unsigned long s3c2440_fclk_n_getrate(struct clk *clk) diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index e859fcdb3d58..fde0d23121dc 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -22,8 +22,13 @@ #include <mach/common.h> #include <mach/emev2.h> +#ifdef CONFIG_ARCH_SH73A0 #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \ of_machine_is_compatible("renesas,sh73a0")) +#else +#define is_sh73a0() (0) +#endif + #define is_r8a7779() machine_is_marzen() #ifdef CONFIG_ARCH_EMEV2 diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 1509a3cb5833..4fd93f5c49ec 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -625,11 +625,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = { &ab8500_device, }; -static struct platform_device *snowball_of_platform_devs[] __initdata = { - &snowball_led_dev, - &snowball_key_dev, -}; - static void __init mop500_init_machine(void) { struct device *parent = NULL; @@ -769,6 +764,11 @@ MACHINE_END #ifdef CONFIG_MACH_UX500_DT +static struct platform_device *snowball_of_platform_devs[] __initdata = { + &snowball_led_dev, + &snowball_key_dev, +}; + struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { /* Requires DMA and call-back bindings. */ OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat), @@ -786,6 +786,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL), OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL), OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL), + /* Requires device name bindings. */ + OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL), {}, }; diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c index 741e71feca78..66e7f00884ab 100644 --- a/arch/arm/mach-ux500/timer.c +++ b/arch/arm/mach-ux500/timer.c @@ -63,8 +63,10 @@ static void __init ux500_timer_init(void) /* TODO: Once MTU has been DT:ed place code above into else. */ if (of_have_populated_dt()) { +#ifdef CONFIG_OF np = of_find_matching_node(NULL, prcmu_timer_of_match); if (!np) +#endif goto dt_fail; tmp_base = of_iomap(np, 0); diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index 33ecd0c9f0c3..b1e05ccff3ac 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -157,11 +157,13 @@ int s3c_adc_start(struct s3c_adc_client *client, return -EINVAL; } - if (client->is_ts && adc->ts_pend) - return -EAGAIN; - spin_lock_irqsave(&adc->lock, flags); + if (client->is_ts && adc->ts_pend) { + spin_unlock_irqrestore(&adc->lock, flags); + return -EAGAIN; + } + client->channel = channel; client->nr_samples = nr_samples; diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 1d214cb9d770..6303974c2ee0 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -126,7 +126,8 @@ struct platform_device s3c_device_adc = { #ifdef CONFIG_CPU_S3C2440 static struct resource s3c_camif_resource[] = { [0] = DEFINE_RES_MEM(S3C2440_PA_CAMIF, S3C2440_SZ_CAMIF), - [1] = DEFINE_RES_IRQ(IRQ_CAM), + [1] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_C), + [2] = DEFINE_RES_IRQ(IRQ_S3C2440_CAM_P), }; struct platform_device s3c_device_camif = { diff --git a/arch/arm/plat-samsung/s5p-clock.c b/arch/arm/plat-samsung/s5p-clock.c index 031a61899bef..48a159911037 100644 --- a/arch/arm/plat-samsung/s5p-clock.c +++ b/arch/arm/plat-samsung/s5p-clock.c @@ -37,6 +37,7 @@ struct clk clk_ext_xtal_mux = { struct clk clk_xusbxti = { .name = "xusbxti", .id = -1, + .rate = 24000000, }; struct clk s5p_clk_27m = { diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h index a09230a08e02..62ef17676b40 100644 --- a/arch/h8300/include/asm/pgtable.h +++ b/arch/h8300/include/asm/pgtable.h @@ -70,4 +70,7 @@ extern int is_in_rom(unsigned long); #define VMALLOC_END 0xffffffff #define arch_enter_lazy_cpu_mode() do {} while (0) + +#include <asm-generic/pgtable.h> + #endif /* _H8300_PGTABLE_H */ diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h index 356068cd0879..8725d1ad4272 100644 --- a/arch/h8300/include/asm/uaccess.h +++ b/arch/h8300/include/asm/uaccess.h @@ -100,7 +100,6 @@ extern int __put_user_bad(void); break; \ default: \ __gu_err = __get_user_bad(); \ - __gu_val = 0; \ break; \ } \ (x) = __gu_val; \ @@ -159,4 +158,6 @@ clear_user(void *to, unsigned long n) return 0; } +#define __clear_user clear_user + #endif /* _H8300_UACCESS_H */ diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c index fca10378701b..5adaadaf9218 100644 --- a/arch/h8300/kernel/signal.c +++ b/arch/h8300/kernel/signal.c @@ -447,7 +447,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -statis void do_signal(struct pt_regs *regs) +static void do_signal(struct pt_regs *regs) { siginfo_t info; int signr; diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c index 32263a138aa6..e0f74191d553 100644 --- a/arch/h8300/kernel/time.c +++ b/arch/h8300/kernel/time.c @@ -27,6 +27,7 @@ #include <linux/profile.h> #include <asm/io.h> +#include <asm/irq_regs.h> #include <asm/timer.h> #define TICK_SIZE (tick_nsec / 1000) diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c index ea453532a33c..075d87acd12a 100644 --- a/arch/mips/pci/pci-lantiq.c +++ b/arch/mips/pci/pci-lantiq.c @@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev) /* setup reset gpio used by pci */ reset_gpio = of_get_named_gpio(node, "gpio-reset", 0); - if (reset_gpio > 0) + if (gpio_is_valid(reset_gpio)) devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset"); /* enable auto-switching between PCI and EBU */ @@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev) ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN); /* toggle reset pin */ - if (reset_gpio > 0) { + if (gpio_is_valid(reset_gpio)) { __gpio_set_value(reset_gpio, 0); wmb(); mdelay(1); diff --git a/arch/mn10300/include/asm/ptrace.h b/arch/mn10300/include/asm/ptrace.h index 55b79ef10028..44251b974f1d 100644 --- a/arch/mn10300/include/asm/ptrace.h +++ b/arch/mn10300/include/asm/ptrace.h @@ -81,9 +81,6 @@ struct pt_regs { #define PTRACE_GETFPREGS 14 #define PTRACE_SETFPREGS 15 -/* options set using PTRACE_SETOPTIONS */ -#define PTRACE_O_TRACESYSGOOD 0x00000001 - #ifdef __KERNEL__ #define user_mode(regs) (((regs)->epsw & EPSW_nSL) == EPSW_nSL) diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h index 08251d6f6b11..ac519bbd42ff 100644 --- a/arch/mn10300/include/asm/thread_info.h +++ b/arch/mn10300/include/asm/thread_info.h @@ -123,7 +123,7 @@ static inline unsigned long current_stack_pointer(void) } #ifndef CONFIG_KGDB -void arch_release_thread_info(struct thread_info *ti) +void arch_release_thread_info(struct thread_info *ti); #endif #define get_thread_info(ti) get_task_struct((ti)->task) #define put_thread_info(ti) put_task_struct((ti)->task) diff --git a/arch/mn10300/include/asm/timex.h b/arch/mn10300/include/asm/timex.h index bd4e90dfe6c2..f8e66425cbf8 100644 --- a/arch/mn10300/include/asm/timex.h +++ b/arch/mn10300/include/asm/timex.h @@ -11,7 +11,6 @@ #ifndef _ASM_TIMEX_H #define _ASM_TIMEX_H -#include <asm/hardirq.h> #include <unit/timex.h> #define TICK_SIZE (tick_nsec / 1000) @@ -30,16 +29,6 @@ static inline cycles_t get_cycles(void) extern int init_clockevents(void); extern int init_clocksource(void); -static inline void setup_jiffies_interrupt(int irq, - struct irqaction *action) -{ - u16 tmp; - setup_irq(irq, action); - set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL)); - GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST; - tmp = GxICR(irq); -} - #endif /* __KERNEL__ */ #endif /* _ASM_TIMEX_H */ diff --git a/arch/mn10300/kernel/cevt-mn10300.c b/arch/mn10300/kernel/cevt-mn10300.c index 69cae0260786..ccce35e3e179 100644 --- a/arch/mn10300/kernel/cevt-mn10300.c +++ b/arch/mn10300/kernel/cevt-mn10300.c @@ -70,6 +70,16 @@ static void event_handler(struct clock_event_device *dev) { } +static inline void setup_jiffies_interrupt(int irq, + struct irqaction *action) +{ + u16 tmp; + setup_irq(irq, action); + set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL)); + GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST; + tmp = GxICR(irq); +} + int __init init_clockevents(void) { struct clock_event_device *cd; diff --git a/arch/mn10300/kernel/internal.h b/arch/mn10300/kernel/internal.h index a5ac755dd69f..2df440105a80 100644 --- a/arch/mn10300/kernel/internal.h +++ b/arch/mn10300/kernel/internal.h @@ -9,6 +9,8 @@ * 2 of the Licence, or (at your option) any later version. */ +#include <linux/irqreturn.h> + struct clocksource; struct clock_event_device; diff --git a/arch/mn10300/kernel/irq.c b/arch/mn10300/kernel/irq.c index 2381df83bd00..35932a8de8b8 100644 --- a/arch/mn10300/kernel/irq.c +++ b/arch/mn10300/kernel/irq.c @@ -170,9 +170,9 @@ mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask, case SC1TXIRQ: #ifdef CONFIG_MN10300_TTYSM1_TIMER12 case TM12IRQ: -#elif CONFIG_MN10300_TTYSM1_TIMER9 +#elif defined(CONFIG_MN10300_TTYSM1_TIMER9) case TM9IRQ: -#elif CONFIG_MN10300_TTYSM1_TIMER3 +#elif defined(CONFIG_MN10300_TTYSM1_TIMER3) case TM3IRQ: #endif /* CONFIG_MN10300_TTYSM1_TIMER12 */ #endif /* CONFIG_MN10300_TTYSM1 */ diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index 94a9c6d53e1b..b900e5afa0ae 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -26,6 +26,7 @@ #include <linux/kdebug.h> #include <linux/bug.h> #include <linux/irq.h> +#include <linux/export.h> #include <asm/processor.h> #include <linux/uaccess.h> #include <asm/io.h> diff --git a/arch/mn10300/mm/dma-alloc.c b/arch/mn10300/mm/dma-alloc.c index 159acb02cfd4..e244ebe637e1 100644 --- a/arch/mn10300/mm/dma-alloc.c +++ b/arch/mn10300/mm/dma-alloc.c @@ -15,6 +15,7 @@ #include <linux/string.h> #include <linux/pci.h> #include <linux/gfp.h> +#include <linux/export.h> #include <asm/io.h> static unsigned long pci_sram_allocated = 0xbc000000; diff --git a/arch/mn10300/unit-asb2303/include/unit/timex.h b/arch/mn10300/unit-asb2303/include/unit/timex.h index cc18fe7d8b90..c37f9832cf17 100644 --- a/arch/mn10300/unit-asb2303/include/unit/timex.h +++ b/arch/mn10300/unit-asb2303/include/unit/timex.h @@ -11,10 +11,6 @@ #ifndef _ASM_UNIT_TIMEX_H #define _ASM_UNIT_TIMEX_H -#ifndef __ASSEMBLY__ -#include <linux/irq.h> -#endif /* __ASSEMBLY__ */ - #include <asm/timer-regs.h> #include <unit/clock.h> #include <asm/param.h> diff --git a/arch/mn10300/unit-asb2303/smc91111.c b/arch/mn10300/unit-asb2303/smc91111.c index 43c246439413..53677694b165 100644 --- a/arch/mn10300/unit-asb2303/smc91111.c +++ b/arch/mn10300/unit-asb2303/smc91111.c @@ -15,6 +15,7 @@ #include <linux/platform_device.h> #include <asm/io.h> +#include <asm/irq.h> #include <asm/timex.h> #include <asm/processor.h> #include <asm/intctl-regs.h> diff --git a/arch/mn10300/unit-asb2305/include/unit/timex.h b/arch/mn10300/unit-asb2305/include/unit/timex.h index 758af30d1a16..4cefc224f448 100644 --- a/arch/mn10300/unit-asb2305/include/unit/timex.h +++ b/arch/mn10300/unit-asb2305/include/unit/timex.h @@ -11,10 +11,6 @@ #ifndef _ASM_UNIT_TIMEX_H #define _ASM_UNIT_TIMEX_H -#ifndef __ASSEMBLY__ -#include <linux/irq.h> -#endif /* __ASSEMBLY__ */ - #include <asm/timer-regs.h> #include <unit/clock.h> #include <asm/param.h> diff --git a/arch/mn10300/unit-asb2305/unit-init.c b/arch/mn10300/unit-asb2305/unit-init.c index e1becd6b7571..bc4adfaf815c 100644 --- a/arch/mn10300/unit-asb2305/unit-init.c +++ b/arch/mn10300/unit-asb2305/unit-init.c @@ -13,6 +13,7 @@ #include <linux/init.h> #include <linux/pci.h> #include <asm/io.h> +#include <asm/irq.h> #include <asm/setup.h> #include <asm/processor.h> #include <asm/intctl-regs.h> diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h index ddb7ed010706..42f32db75087 100644 --- a/arch/mn10300/unit-asb2364/include/unit/timex.h +++ b/arch/mn10300/unit-asb2364/include/unit/timex.h @@ -11,10 +11,6 @@ #ifndef _ASM_UNIT_TIMEX_H #define _ASM_UNIT_TIMEX_H -#ifndef __ASSEMBLY__ -#include <linux/irq.h> -#endif /* __ASSEMBLY__ */ - #include <asm/timer-regs.h> #include <unit/clock.h> #include <asm/param.h> diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index 6eb75b80488c..0554ab062bdc 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -86,8 +86,8 @@ static inline bool arch_irqs_disabled(void) } #ifdef CONFIG_PPC_BOOK3E -#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory"); -#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory"); +#define __hard_irq_enable() asm volatile("wrteei 1" : : : "memory") +#define __hard_irq_disable() asm volatile("wrteei 0" : : : "memory") #else #define __hard_irq_enable() __mtmsrd(local_paca->kernel_msr | MSR_EE, 1) #define __hard_irq_disable() __mtmsrd(local_paca->kernel_msr, 1) @@ -125,6 +125,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs) return !regs->softe; } +extern bool prep_irq_for_idle(void); + #else /* CONFIG_PPC64 */ #define SET_MSR_EE(x) mtmsr(x) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 1b415027ec0e..1f017bb7a7ce 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -229,7 +229,7 @@ notrace void arch_local_irq_restore(unsigned long en) */ if (unlikely(irq_happened != PACA_IRQ_HARD_DIS)) __hard_irq_disable(); -#ifdef CONFIG_TRACE_IRQFLAG +#ifdef CONFIG_TRACE_IRQFLAGS else { /* * We should already be hard disabled here. We had bugs @@ -286,6 +286,52 @@ void notrace restore_interrupts(void) __hard_irq_enable(); } +/* + * This is a helper to use when about to go into idle low-power + * when the latter has the side effect of re-enabling interrupts + * (such as calling H_CEDE under pHyp). + * + * You call this function with interrupts soft-disabled (this is + * already the case when ppc_md.power_save is called). The function + * will return whether to enter power save or just return. + * + * In the former case, it will have notified lockdep of interrupts + * being re-enabled and generally sanitized the lazy irq state, + * and in the latter case it will leave with interrupts hard + * disabled and marked as such, so the local_irq_enable() call + * in cpu_idle() will properly re-enable everything. + */ +bool prep_irq_for_idle(void) +{ + /* + * First we need to hard disable to ensure no interrupt + * occurs before we effectively enter the low power state + */ + hard_irq_disable(); + + /* + * If anything happened while we were soft-disabled, + * we return now and do not enter the low power state. + */ + if (lazy_irq_pending()) + return false; + + /* Tell lockdep we are about to re-enable */ + trace_hardirqs_on(); + + /* + * Mark interrupts as soft-enabled and clear the + * PACA_IRQ_HARD_DIS from the pending mask since we + * are about to hard enable as well as a side effect + * of entering the low power state. + */ + local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS; + local_paca->soft_enabled = 1; + + /* Tell the caller to enter the low power state */ + return true; +} + #endif /* CONFIG_PPC64 */ int arch_show_interrupts(struct seq_file *p, int prec) diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c index 3ff9013d6e79..ee02b30878ed 100644 --- a/arch/powerpc/kvm/book3s_pr_papr.c +++ b/arch/powerpc/kvm/book3s_pr_papr.c @@ -241,6 +241,7 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd) case H_PUT_TCE: return kvmppc_h_pr_put_tce(vcpu); case H_CEDE: + vcpu->arch.shared->msr |= MSR_EE; kvm_vcpu_block(vcpu); clear_bit(KVM_REQ_UNHALT, &vcpu->requests); vcpu->stat.halt_wakeup++; diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 6e8f677f5646..1e95556dc692 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -639,7 +639,7 @@ static void __init parse_drconf_memory(struct device_node *memory) unsigned int n, rc, ranges, is_kexec_kdump = 0; unsigned long lmb_size, base, size, sz; int nid; - struct assoc_arrays aa; + struct assoc_arrays aa = { .arrays = NULL }; n = of_get_drconf_memory(memory, &dm); if (!n) diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c index efdacc829576..d17e98bc0c10 100644 --- a/arch/powerpc/platforms/cell/pervasive.c +++ b/arch/powerpc/platforms/cell/pervasive.c @@ -42,11 +42,9 @@ static void cbe_power_save(void) { unsigned long ctrl, thread_switch_control; - /* - * We need to hard disable interrupts, the local_irq_enable() done by - * our caller upon return will hard re-enable. - */ - hard_irq_disable(); + /* Ensure our interrupt state is properly tracked */ + if (!prep_irq_for_idle()) + return; ctrl = mfspr(SPRN_CTRLF); @@ -81,6 +79,9 @@ static void cbe_power_save(void) */ ctrl &= ~(CTRL_RUNLATCH | CTRL_TE); mtspr(SPRN_CTRLT, ctrl); + + /* Re-enable interrupts in MSR */ + __hard_irq_enable(); } static int cbe_system_reset_exception(struct pt_regs *regs) diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index e61483e8e960..c71be66bd5dc 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -99,15 +99,18 @@ out: static void check_and_cede_processor(void) { /* - * Interrupts are soft-disabled at this point, - * but not hard disabled. So an interrupt might have - * occurred before entering NAP, and would be potentially - * lost (edge events, decrementer events, etc...) unless - * we first hard disable then check. + * Ensure our interrupt state is properly tracked, + * also checks if no interrupt has occurred while we + * were soft-disabled */ - hard_irq_disable(); - if (!lazy_irq_pending()) + if (prep_irq_for_idle()) { cede_processor(); +#ifdef CONFIG_TRACE_IRQFLAGS + /* Ensure that H_CEDE returns with IRQs on */ + if (WARN_ON(!(mfmsr() & MSR_EE))) + __hard_irq_enable(); +#endif + } } static int dedicated_cede_loop(struct cpuidle_device *dev, diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h index e136d28d1d2e..4d48f1436a63 100644 --- a/arch/sh/include/asm/io_noioport.h +++ b/arch/sh/include/asm/io_noioport.h @@ -19,9 +19,20 @@ static inline u32 inl(unsigned long addr) return -1; } -#define outb(x, y) BUG() -#define outw(x, y) BUG() -#define outl(x, y) BUG() +static inline void outb(unsigned char x, unsigned long port) +{ + BUG(); +} + +static inline void outw(unsigned short x, unsigned long port) +{ + BUG(); +} + +static inline void outl(unsigned int x, unsigned long port) +{ + BUG(); +} #define inb_p(addr) inb(addr) #define inw_p(addr) inw(addr) diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c index 8832c526cdf9..c4a0336660dd 100644 --- a/arch/sh/kernel/cpu/sh3/serial-sh7720.c +++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c @@ -2,7 +2,7 @@ #include <linux/serial_core.h> #include <linux/io.h> #include <cpu/serial.h> -#include <asm/gpio.h> +#include <cpu/gpio.h> static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag) { diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c index 9092ce8aa6b4..f8b74ca83b92 100644 --- a/arch/tile/kernel/backtrace.c +++ b/arch/tile/kernel/backtrace.c @@ -14,6 +14,7 @@ #include <linux/kernel.h> #include <linux/string.h> +#include <asm/byteorder.h> #include <asm/backtrace.h> #include <asm/tile-desc.h> #include <arch/abi.h> @@ -336,8 +337,12 @@ static void find_caller_pc_and_caller_sp(CallerLocation *location, bytes_to_prefetch / sizeof(tile_bundle_bits); } - /* Decode the next bundle. */ - bundle.bits = prefetched_bundles[next_bundle++]; + /* + * Decode the next bundle. + * TILE always stores instruction bundles in little-endian + * mode, even when the chip is running in big-endian mode. + */ + bundle.bits = le64_to_cpu(prefetched_bundles[next_bundle++]); bundle.num_insns = parse_insn_tile(bundle.bits, pc, bundle.insns); num_info_ops = bt_get_info_ops(&bundle, info_operands); diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 88e466b159dc..43b39d61b538 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -705,7 +705,6 @@ static void stack_proc(void *arg) struct task_struct *from = current, *to = arg; to->thread.saved_task = from; - rcu_switch_from(from); switch_to(from, to, from); } diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 7515cf0e1805..08a18d0dcc5a 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -139,6 +139,15 @@ static int addr_to_vsyscall_nr(unsigned long addr) return nr; } +static int vsyscall_seccomp(struct task_struct *tsk, int syscall_nr) +{ + if (!seccomp_mode(&tsk->seccomp)) + return 0; + task_pt_regs(tsk)->orig_ax = syscall_nr; + task_pt_regs(tsk)->ax = syscall_nr; + return __secure_computing(syscall_nr); +} + static bool write_ok_or_segv(unsigned long ptr, size_t size) { /* @@ -174,6 +183,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) int vsyscall_nr; int prev_sig_on_uaccess_error; long ret; + int skip; /* * No point in checking CS -- the only way to get here is a user mode @@ -205,9 +215,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) } tsk = current; - if (seccomp_mode(&tsk->seccomp)) - do_exit(SIGKILL); - /* * With a real vsyscall, page faults cause SIGSEGV. We want to * preserve that behavior to make writing exploits harder. @@ -222,8 +229,13 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) * address 0". */ ret = -EFAULT; + skip = 0; switch (vsyscall_nr) { case 0: + skip = vsyscall_seccomp(tsk, __NR_gettimeofday); + if (skip) + break; + if (!write_ok_or_segv(regs->di, sizeof(struct timeval)) || !write_ok_or_segv(regs->si, sizeof(struct timezone))) break; @@ -234,6 +246,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) break; case 1: + skip = vsyscall_seccomp(tsk, __NR_time); + if (skip) + break; + if (!write_ok_or_segv(regs->di, sizeof(time_t))) break; @@ -241,6 +257,10 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) break; case 2: + skip = vsyscall_seccomp(tsk, __NR_getcpu); + if (skip) + break; + if (!write_ok_or_segv(regs->di, sizeof(unsigned)) || !write_ok_or_segv(regs->si, sizeof(unsigned))) break; @@ -253,6 +273,12 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) current_thread_info()->sig_on_uaccess_error = prev_sig_on_uaccess_error; + if (skip) { + if ((long)regs->ax <= 0L) /* seccomp errno emulation */ + goto do_ret; + goto done; /* seccomp trace/trap */ + } + if (ret == -EFAULT) { /* Bad news -- userspace fed a bad pointer to a vsyscall. */ warn_bad_vsyscall(KERN_INFO, regs, @@ -271,10 +297,11 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address) regs->ax = ret; +do_ret: /* Emulate a ret instruction. */ regs->ip = caller; regs->sp += 8; - +done: return true; sigsegv: diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c index 9b306e550e3f..2c8d6a3d250a 100644 --- a/arch/xtensa/kernel/process.c +++ b/arch/xtensa/kernel/process.c @@ -277,7 +277,7 @@ void xtensa_elf_core_copy_regs (xtensa_gregset_t *elfregs, struct pt_regs *regs) /* Don't leak any random bits. */ - memset(elfregs, 0, sizeof (elfregs)); + memset(elfregs, 0, sizeof(*elfregs)); /* Note: PS.EXCM is not set while user task is running; its * being set in regs->ps is for exception handling convenience. |