diff options
| author | Olof Johansson <olof@lixom.net> | 2012-05-10 00:21:11 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-05-10 00:23:17 -0700 |
| commit | caafc71b1a25096ef74904adb19d37e5c6a282dc (patch) | |
| tree | 17f0602c6e04fdec78c50a1c2cbd70a0303ed2c6 /arch | |
| parent | af568679f51de779d0e9ad7d8360dc7727da546d (diff) | |
| parent | bcd59b0f0c14b0584c1213ee3b53d5f84517c419 (diff) | |
Merge tag 'v3.5-soc' of git://gitorious.org/linux-davinci/linux-davinci into next/drivers
DaVinci SoC updates for v3.5
This pull request updates the DaVinci SoC support to implement DEBUG_LL port
choice and optimizes the DMA ISR by removing unnecessary register reads.
* tag 'v3.5-soc' of git://gitorious.org/linux-davinci/linux-davinci:
ARM: davinci: optimize the DMA ISR
ARM: davinci: implement DEBUG_LL port choice
+ sync with Linux 3.4-rc6
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
124 files changed, 1010 insertions, 701 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 56a4df952fb0..22e58a99f38b 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -477,7 +477,7 @@ config ALPHA_BROKEN_IRQ_MASK config VGA_HOSE bool - depends on ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI + depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI) default y help Support VGA on an arbitrary hose; needed for several platforms diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h index 1f7fba671ae6..d70408d36677 100644 --- a/arch/alpha/include/asm/rtc.h +++ b/arch/alpha/include/asm/rtc.h @@ -1,14 +1,10 @@ #ifndef _ALPHA_RTC_H #define _ALPHA_RTC_H -#if defined(CONFIG_ALPHA_GENERIC) +#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \ + || defined(CONFIG_ALPHA_GENERIC) # define get_rtc_time alpha_mv.rtc_get_time # define set_rtc_time alpha_mv.rtc_set_time -#else -# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) -# define get_rtc_time marvel_get_rtc_time -# define set_rtc_time marvel_set_rtc_time -# endif #endif #include <asm-generic/rtc.h> diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c index 5e7c28f92f19..61893d7bdda5 100644 --- a/arch/alpha/kernel/core_tsunami.c +++ b/arch/alpha/kernel/core_tsunami.c @@ -11,6 +11,7 @@ #include <asm/core_tsunami.h> #undef __EXTERN_INLINE +#include <linux/module.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/sched.h> diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 14a4b6a7cf59..407accc80877 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -317,7 +317,7 @@ marvel_init_irq(void) } static int -marvel_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { struct pci_controller *hose = dev->sysdata; struct io7_port *io7_port = hose->sysdata; diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cf006d40342c..36586dba6fa6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1186,6 +1186,15 @@ if !MMU source "arch/arm/Kconfig-nommu" endif +config ARM_ERRATA_326103 + bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory" + depends on CPU_V6 + help + Executing a SWP instruction to read-only memory does not set bit 11 + of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to + treat the access as a read, preventing a COW from occurring and + causing the faulting task to livelock. + config ARM_ERRATA_411920 bool "ARM errata: Invalidation of the Instruction Cache operation can fail" depends on CPU_V6 || CPU_V6K diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 85348a09d655..e561adc1db0c 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -103,6 +103,35 @@ choice Say Y here if you want the debug print routines to direct their output to the second serial port on these devices. + config DEBUG_DAVINCI_DA8XX_UART1 + bool "Kernel low-level debugging on DaVinci DA8XX using UART1" + depends on ARCH_DAVINCI_DA8XX + help + Say Y here if you want the debug print routines to direct + their output to UART1 serial port on DaVinci DA8XX devices. + + config DEBUG_DAVINCI_DA8XX_UART2 + bool "Kernel low-level debugging on DaVinci DA8XX using UART2" + depends on ARCH_DAVINCI_DA8XX + help + Say Y here if you want the debug print routines to direct + their output to UART2 serial port on DaVinci DA8XX devices. + + config DEBUG_DAVINCI_DMx_UART0 + bool "Kernel low-level debugging on DaVinci DMx using UART0" + depends on ARCH_DAVINCI_DMx + help + Say Y here if you want the debug print routines to direct + their output to UART0 serial port on DaVinci DMx devices. + + config DEBUG_DAVINCI_TNETV107X_UART1 + bool "Kernel low-level debugging on DaVinci TNETV107x using UART1" + depends on ARCH_DAVINCI_TNETV107X + help + Say Y here if you want the debug print routines to direct + their output to UART1 serial port on DaVinci TNETV107X + devices. + config DEBUG_DC21285_PORT bool "Kernel low-level debugging messages via footbridge serial port" depends on FOOTBRIDGE diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts index 15ded0deaa79..45bc4bb04e57 100644 --- a/arch/arm/boot/dts/msm8660-surf.dts +++ b/arch/arm/boot/dts/msm8660-surf.dts @@ -10,7 +10,7 @@ intc: interrupt-controller@02080000 { compatible = "qcom,msm-8660-qgic"; interrupt-controller; - #interrupt-cells = <1>; + #interrupt-cells = <3>; reg = < 0x02080000 0x1000 >, < 0x02081000 0x1000 >; }; @@ -19,6 +19,6 @@ compatible = "qcom,msm-hsuart", "qcom,msm-uart"; reg = <0x19c40000 0x1000>, <0x19c00000 0x1000>; - interrupts = <195>; + interrupts = <0 195 0x0>; }; }; diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts index 0b32925f2147..e2fe3195c0d1 100644 --- a/arch/arm/boot/dts/versatile-ab.dts +++ b/arch/arm/boot/dts/versatile-ab.dts @@ -173,7 +173,7 @@ mmc@5000 { compatible = "arm,primecell"; reg = < 0x5000 0x1000>; - interrupts = <22>; + interrupts = <22 34>; }; kmi@6000 { compatible = "arm,pl050", "arm,primecell"; diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts index 166461073b78..7e8175269064 100644 --- a/arch/arm/boot/dts/versatile-pb.dts +++ b/arch/arm/boot/dts/versatile-pb.dts @@ -41,7 +41,7 @@ mmc@b000 { compatible = "arm,primecell"; reg = <0xb000 0x1000>; - interrupts = <23>; + interrupts = <23 34>; }; }; }; diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig index 42da9183acc8..082175c54e7c 100644 --- a/arch/arm/configs/mini2440_defconfig +++ b/arch/arm/configs/mini2440_defconfig @@ -14,6 +14,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_BLK_DEV_INTEGRITY=y CONFIG_ARCH_S3C24XX=y +# CONFIG_CPU_S3C2410 is not set +CONFIG_CPU_S3C2440=y CONFIG_S3C_ADC=y CONFIG_S3C24XX_PWM=y CONFIG_MACH_MINI2440=y diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index d4c24d412a8d..0f04d84582e1 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -118,6 +118,13 @@ extern void iwmmxt_task_switch(struct thread_info *); extern void vfp_sync_hwstate(struct thread_info *); extern void vfp_flush_hwstate(struct thread_info *); +struct user_vfp; +struct user_vfp_exc; + +extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); +extern int vfp_restore_user_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); #endif /* diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h index 60843eb0f61c..73409e6c0251 100644 --- a/arch/arm/include/asm/tls.h +++ b/arch/arm/include/asm/tls.h @@ -7,6 +7,8 @@ .macro set_tls_v6k, tp, tmp1, tmp2 mcr p15, 0, \tp, c13, c0, 3 @ set TLS register + mov \tmp1, #0 + mcr p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register .endm .macro set_tls_v6, tp, tmp1, tmp2 @@ -15,6 +17,8 @@ mov \tmp2, #0xffff0fff tst \tmp1, #HWCAP_TLS @ hardware TLS available? mcrne p15, 0, \tp, c13, c0, 3 @ yes, set TLS register + movne \tmp1, #0 + mcrne p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register streq \tp, [\tmp2, #-15] @ set TLS value at 0xffff0ff0 .endm diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 71ccdbfed662..8349d4e97e2b 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -155,10 +155,10 @@ static bool migrate_one_irq(struct irq_desc *desc) } c = irq_data_get_irq_chip(d); - if (c->irq_set_affinity) - c->irq_set_affinity(d, affinity, true); - else + if (!c->irq_set_affinity) pr_debug("IRQ%u: unable to set affinity\n", d->irq); + else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret) + cpumask_copy(d->affinity, affinity); return ret; } diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 7cb532fc8aa4..d68d1b694680 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -180,44 +180,23 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame) static int preserve_vfp_context(struct vfp_sigframe __user *frame) { - struct thread_info *thread = current_thread_info(); - struct vfp_hard_struct *h = &thread->vfpstate.hard; const unsigned long magic = VFP_MAGIC; const unsigned long size = VFP_STORAGE_SIZE; int err = 0; - vfp_sync_hwstate(thread); __put_user_error(magic, &frame->magic, err); __put_user_error(size, &frame->size, err); - /* - * Copy the floating point registers. There can be unused - * registers see asm/hwcap.h for details. - */ - err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs, - sizeof(h->fpregs)); - /* - * Copy the status and control register. - */ - __put_user_error(h->fpscr, &frame->ufp.fpscr, err); - - /* - * Copy the exception registers. - */ - __put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err); - __put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err); - __put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err); + if (err) + return -EFAULT; - return err ? -EFAULT : 0; + return vfp_preserve_user_clear_hwstate(&frame->ufp, &frame->ufp_exc); } static int restore_vfp_context(struct vfp_sigframe __user *frame) { - struct thread_info *thread = current_thread_info(); - struct vfp_hard_struct *h = &thread->vfpstate.hard; unsigned long magic; unsigned long size; - unsigned long fpexc; int err = 0; __get_user_error(magic, &frame->magic, err); @@ -228,33 +207,7 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame) if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE) return -EINVAL; - vfp_flush_hwstate(thread); - - /* - * Copy the floating point registers. There can be unused - * registers see asm/hwcap.h for details. - */ - err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs, - sizeof(h->fpregs)); - /* - * Copy the status and control register. - */ - __get_user_error(h->fpscr, &frame->ufp.fpscr, err); - - /* - * Sanitise and restore the exception registers. - */ - __get_user_error(fpexc, &frame->ufp_exc.fpexc, err); - /* Ensure the VFP is enabled. */ - fpexc |= FPEXC_EN; - /* Ensure FPINST2 is invalid and the exception flag is cleared. */ - fpexc &= ~(FPEXC_EX | FPEXC_FP2V); - h->fpexc = fpexc; - - __get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err); - __get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err); - - return err ? -EFAULT : 0; + return vfp_restore_user_hwstate(&frame->ufp, &frame->ufp_exc); } #endif diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index addbbe8028c2..f6a4d32b0421 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -510,10 +510,6 @@ static void ipi_cpu_stop(unsigned int cpu) local_fiq_disable(); local_irq_disable(); -#ifdef CONFIG_HOTPLUG_CPU - platform_cpu_kill(cpu); -#endif - while (1) cpu_relax(); } @@ -576,17 +572,25 @@ void smp_send_reschedule(int cpu) smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE); } +#ifdef CONFIG_HOTPLUG_CPU +static void smp_kill_cpus(cpumask_t *mask) +{ + unsigned int cpu; + for_each_cpu(cpu, mask) + platform_cpu_kill(cpu); +} +#else +static void smp_kill_cpus(cpumask_t *mask) { } +#endif + void smp_send_stop(void) { unsigned long timeout; + struct cpumask mask; - if (num_online_cpus() > 1) { - struct cpumask mask; - cpumask_copy(&mask, cpu_online_mask); - cpumask_clear_cpu(smp_processor_id(), &mask); - - smp_cross_call(&mask, IPI_CPU_STOP); - } + cpumask_copy(&mask, cpu_online_mask); + cpumask_clear_cpu(smp_processor_id(), &mask); + smp_cross_call(&mask, IPI_CPU_STOP); /* Wait up to one second for other CPUs to stop */ timeout = USEC_PER_SEC; @@ -595,6 +599,8 @@ void smp_send_stop(void) if (num_online_cpus() > 1) pr_warning("SMP: failed to stop secondary CPUs\n"); + + smp_kill_cpus(&mask); } /* diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c index 5b150afb995b..fef42b21cecb 100644 --- a/arch/arm/kernel/smp_twd.c +++ b/arch/arm/kernel/smp_twd.c @@ -118,14 +118,10 @@ static int twd_cpufreq_transition(struct notifier_block *nb, * The twd clock events must be reprogrammed to account for the new * frequency. The timer is local to a cpu, so cross-call to the * changing cpu. - * - * Only wait for it to finish, if the cpu is active to avoid - * deadlock when cpu1 is spinning on while(!cpu_active(cpu1)) during - * booting of that cpu. */ if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE) smp_call_function_single(freqs->cpu, twd_update_frequency, - NULL, cpu_active(freqs->cpu)); + NULL, 1); return NOTIFY_OK; } diff --git a/arch/arm/mach-davinci/dma.c b/arch/arm/mach-davinci/dma.c index fd33919c95d4..8713694a6f2c 100644 --- a/arch/arm/mach-davinci/dma.c +++ b/arch/arm/mach-davinci/dma.c @@ -353,9 +353,10 @@ static int irq2ctlr(int irq) *****************************************************************************/ static irqreturn_t dma_irq_handler(int irq, void *data) { - int i; int ctlr; - unsigned int cnt = 0; + u32 sh_ier; + u32 sh_ipr; + u32 bank; ctlr = irq2ctlr(irq); if (ctlr < 0) @@ -363,41 +364,39 @@ static irqreturn_t dma_irq_handler(int irq, void *data) dev_dbg(data, "dma_irq_handler\n"); - if ((edma_shadow0_read_array(ctlr, SH_IPR, 0) == 0) && - (edma_shadow0_read_array(ctlr, SH_IPR, 1) == 0)) - return IRQ_NONE; + sh_ipr = edma_shadow0_read_array(ctlr, SH_IPR, 0); + if (!sh_ipr) { + sh_ipr = edma_shadow0_read_array(ctlr, SH_IPR, 1); + if (!sh_ipr) + return IRQ_NONE; + sh_ier = edma_shadow0_read_array(ctlr, SH_IER, 1); + bank = 1; + } else { + sh_ier = edma_shadow0_read_array(ctlr, SH_IER, 0); + bank = 0; + } - while (1) { - int j; - if (edma_shadow0_read_array(ctlr, SH_IPR, 0) & - edma_shadow0_read_array(ctlr, SH_IER, 0)) - j = 0; - else if (edma_shadow0_read_array(ctlr, SH_IPR, 1) & - edma_shadow0_read_array(ctlr, SH_IER, 1)) - j = 1; - else - break; - dev_dbg(data, "IPR%d %08x\n", j, - edma_shadow0_read_array(ctlr, SH_IPR, j)); - for (i = 0; i < 32; i++) { - int k = (j << 5) + i; - if ((edma_shadow0_read_array(ctlr, SH_IPR, j) & BIT(i)) - && (edma_shadow0_read_array(ctlr, - SH_IER, j) & BIT(i))) { - /* Clear the corresponding IPR bits */ - edma_shadow0_write_array(ctlr, SH_ICR, j, - BIT(i)); - if (edma_cc[ctlr]->intr_data[k].callback) - edma_cc[ctlr]->intr_data[k].callback( - k, DMA_COMPLETE, - edma_cc[ctlr]->intr_data[k]. - data); - } + do { + u32 slot; + u32 channel; + + dev_dbg(data, "IPR%d %08x\n", bank, sh_ipr); + + slot = __ffs(sh_ipr); + sh_ipr &= ~(BIT(slot)); + + if (sh_ier & BIT(slot)) { + channel = (bank << 5) | slot; + /* Clear the corresponding IPR bits */ + edma_shadow0_write_array(ctlr, SH_ICR, bank, + BIT(slot)); + if (edma_cc[ctlr]->intr_data[channel].callback) + edma_cc[ctlr]->intr_data[channel].callback( + channel, DMA_COMPLETE, + edma_cc[ctlr]->intr_data[channel].data); } - cnt++; - if (cnt > 10) - break; - } + } while (sh_ipr); + edma_shadow0_write(ctlr, SH_IEVAL, 1); return IRQ_HANDLED; } diff --git a/arch/arm/mach-davinci/include/mach/debug-macro.S b/arch/arm/mach-davinci/include/mach/debug-macro.S index cf94552d5274..34290d14754b 100644 --- a/arch/arm/mach-davinci/include/mach/debug-macro.S +++ b/arch/arm/mach-davinci/include/mach/debug-macro.S @@ -22,46 +22,28 @@ #define UART_SHIFT 2 - .pushsection .data -davinci_uart_phys: .word 0 -davinci_uart_virt: .word 0 - .popsection - - .macro addruart, rp, rv, tmp - - /* Use davinci_uart_phys/virt if already configured */ -10: adr \rp, 99f @ get effective addr of 99f - ldr \rv, [\rp] @ get absolute addr of 99f - sub \rv, \rv, \rp @ offset between the two - ldr \rp, [\rp, #4] @ abs addr of omap_uart_phys - sub \tmp, \rp, \rv @ make it effective - ldr \rp, [\tmp, #0] @ davinci_uart_phys - ldr \rv, [\tmp, #4] @ davinci_uart_virt - cmp \rp, #0 @ is port configured? - cmpne \rv, #0 - bne 100f @ already configured - - /* Check the debug UART address set in uncompress.h */ - and \rp, pc, #0xff000000 - ldr \rv, =DAVINCI_UART_INFO_OFS - add \rp, \rp, \rv - - /* Copy uart phys address from decompressor uart info */ - ldr \rv, [\rp, #0] - str \rv, [\tmp, #0] - - /* Copy uart virt address from decompressor uart info */ - ldr \rv, [\rp, #4] - str \rv, [\tmp, #4] - - b 10b +#if defined(CONFIG_DEBUG_DAVINCI_DMx_UART0) +#define UART_BASE DAVINCI_UART0_BASE +#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART0) +#define UART_BASE DA8XX_UART0_BASE +#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART1) +#define UART_BASE DA8XX_UART1_BASE +#elif defined(CONFIG_DEBUG_DAVINCI_DA8XX_UART2) +#define UART_BASE DA8XX_UART2_BASE +#elif defined(CONFIG_DEBUG_DAVINCI_TNETV107X_UART1) +#define UART_BASE TNETV107X_UART2_BASE +#define UART_VIRTBASE TNETV107X_UART2_VIRT +#else +#error "Select a specifc port for DEBUG_LL" +#endif - .align -99: .word . - .word davinci_uart_phys - .ltorg +#ifndef UART_VIRTBASE +#define UART_VIRTBASE IO_ADDRESS(UART_BASE) +#endif -100: + .macro addruart, rp, rv, tmp + ldr \rp, =UART_BASE + ldr \rv, =UART_VIRTBASE .endm .macro senduart,rd,rx diff --git a/arch/arm/mach-davinci/include/mach/hardware.h b/arch/arm/mach-davinci/include/mach/hardware.h index 2184691ebc2f..16bb42291d39 100644 --- a/arch/arm/mach-davinci/include/mach/hardware.h +++ b/arch/arm/mach-davinci/include/mach/hardware.h @@ -22,7 +22,7 @@ /* * I/O mapping */ -#define IO_PHYS 0x01c00000UL +#define IO_PHYS UL(0x01c00000) #define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */ #define IO_SIZE 0x00400000 #define IO_VIRT (IO_PHYS + IO_OFFSET) diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h index e347d88fef91..46b3cd11c3c2 100644 --- a/arch/arm/mach-davinci/include/mach/serial.h +++ b/arch/arm/mach-davinci/include/mach/serial.h @@ -15,16 +15,6 @@ #include <mach/hardware.h> -/* - * Stolen area that contains debug uart physical and virtual addresses. These - * addresses are filled in by the uncompress.h code, and are used by the debug - * macros in debug-macro.S. - * - * This area sits just below the page tables (see arch/arm/kernel/head.S). - * We define it as a relative offset from start of usable RAM. - */ -#define DAVINCI_UART_INFO_OFS 0x3ff8 - #define DAVINCI_UART0_BASE (IO_PHYS + 0x20000) #define DAVINCI_UART1_BASE (IO_PHYS + 0x20400) #define DAVINCI_UART2_BASE (IO_PHYS + 0x20800) diff --git a/arch/arm/mach-davinci/include/mach/uncompress.h b/arch/arm/mach-davinci/include/mach/uncompress.h index da2fb2c2155a..18cfd4977155 100644 --- a/arch/arm/mach-davinci/include/mach/uncompress.h +++ b/arch/arm/mach-davinci/include/mach/uncompress.h @@ -43,37 +43,27 @@ static inline void flush(void) barrier(); } -static inline void set_uart_info(u32 phys, void * __iomem virt) +static inline void set_uart_info(u32 phys) { - /* - * Get address of some.bss variable and round it down - * a la CONFIG_AUTO_ZRELADDR. - */ - u32 ram_start = (u32)&uart & 0xf8000000; - u32 *uart_info = (u32 *)(ram_start + DAVINCI_UART_INFO_OFS); - uart = (u32 *)phys; - uart_info[0] = phys; - uart_info[1] = (u32)virt; } -#define _DEBUG_LL_ENTRY(machine, phys, virt) \ - if (machine_is_##machine()) { \ - set_uart_info(phys, virt); \ - break; \ +#define _DEBUG_LL_ENTRY(machine, phys) \ + { \ + if (machine_is_##machine()) { \ + set_uart_info(phys); \ + break; \ + } \ } #define DEBUG_LL_DAVINCI(machine, port) \ - _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE, \ - IO_ADDRESS(DAVINCI_UART##port##_BASE)) + _DEBUG_LL_ENTRY(machine, DAVINCI_UART##port##_BASE) #define DEBUG_LL_DA8XX(machine, port) \ - _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE, \ - IO_ADDRESS(DA8XX_UART##port##_BASE)) + _DEBUG_LL_ENTRY(machine, DA8XX_UART##port##_BASE) #define DEBUG_LL_TNETV107X(machine, port) \ - _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE, \ - TNETV107X_UART##port##_VIRT) + _DEBUG_LL_ENTRY(machine, TNETV107X_UART##port##_BASE) static inline void __arch_decomp_setup(unsigned long arch_id) { diff --git a/arch/arm/mach-exynos/clock-exynos4.c b/arch/arm/mach-exynos/clock-exynos4.c index df54c2a92225..6efd1e5919fd 100644 --- a/arch/arm/mach-exynos/clock-exynos4.c +++ b/arch/arm/mach-exynos/clock-exynos4.c @@ -497,25 +497,25 @@ static struct clk exynos4_init_clocks_off[] = { .ctrlbit = (1 << 3), }, { .name = "hsmmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 5), }, { .name = "hsmmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 6), }, { .name = "hsmmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 7), }, { .name = "hsmmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos4_clk_aclk_133.clk, .enable = exynos4_clk_ip_fsys_ctrl, .ctrlbit = (1 << 8), @@ -1202,7 +1202,7 @@ static struct clksrc_clk exynos4_clk_sclk_uart3 = { static struct clksrc_clk exynos4_clk_sclk_mmc0 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos4_clk_dout_mmc0.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 0), @@ -1213,7 +1213,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc0 = { static struct clksrc_clk exynos4_clk_sclk_mmc1 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos4_clk_dout_mmc1.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 4), @@ -1224,7 +1224,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc1 = { static struct clksrc_clk exynos4_clk_sclk_mmc2 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos4_clk_dout_mmc2.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 8), @@ -1235,7 +1235,7 @@ static struct clksrc_clk exynos4_clk_sclk_mmc2 = { static struct clksrc_clk exynos4_clk_sclk_mmc3 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos4_clk_dout_mmc3.clk, .enable = exynos4_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 12), @@ -1340,10 +1340,10 @@ static struct clk_lookup exynos4_clk_lookup[] = { CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos4_clk_sclk_uart1.clk), CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos4_clk_sclk_uart2.clk), CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos4_clk_sclk_uart3.clk), - CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk), - CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk), - CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk), - CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk), + CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos4_clk_sclk_mmc0.clk), + CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos4_clk_sclk_mmc1.clk), + CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos4_clk_sclk_mmc2.clk), + CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos4_clk_sclk_mmc3.clk), CLKDEV_INIT("exynos4-fb.0", "lcd", &exynos4_clk_fimd0), CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos4_clk_pdma0), CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos4_clk_pdma1), diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c index d013982d0f8e..5cd7a8b8868c 100644 --- a/arch/arm/mach-exynos/clock-exynos5.c +++ b/arch/arm/mach-exynos/clock-exynos5.c @@ -455,25 +455,25 @@ static struct clk exynos5_init_clocks_off[] = { .ctrlbit = (1 << 20), }, { .name = "hsmmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 12), }, { .name = "hsmmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 13), }, { .name = "hsmmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 14), }, { .name = "hsmmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos5_clk_aclk_200.clk, .enable = exynos5_clk_ip_fsys_ctrl, .ctrlbit = (1 << 15), @@ -813,7 +813,7 @@ static struct clksrc_clk exynos5_clk_sclk_uart3 = { static struct clksrc_clk exynos5_clk_sclk_mmc0 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.0", + .devname = "exynos4-sdhci.0", .parent = &exynos5_clk_dout_mmc0.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 0), @@ -824,7 +824,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc0 = { static struct clksrc_clk exynos5_clk_sclk_mmc1 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.1", + .devname = "exynos4-sdhci.1", .parent = &exynos5_clk_dout_mmc1.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 4), @@ -835,7 +835,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc1 = { static struct clksrc_clk exynos5_clk_sclk_mmc2 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.2", + .devname = "exynos4-sdhci.2", .parent = &exynos5_clk_dout_mmc2.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 8), @@ -846,7 +846,7 @@ static struct clksrc_clk exynos5_clk_sclk_mmc2 = { static struct clksrc_clk exynos5_clk_sclk_mmc3 = { .clk = { .name = "sclk_mmc", - .devname = "s3c-sdhci.3", + .devname = "exynos4-sdhci.3", .parent = &exynos5_clk_dout_mmc3.clk, .enable = exynos5_clksrc_mask_fsys_ctrl, .ctrlbit = (1 << 12), @@ -990,10 +990,10 @@ static struct clk_lookup exynos5_clk_lookup[] = { CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &exynos5_clk_sclk_uart1.clk), CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &exynos5_clk_sclk_uart2.clk), CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &exynos5_clk_sclk_uart3.clk), - CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk), - CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk), - CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk), - CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk), + CLKDEV_INIT("exynos4-sdhci.0", "mmc_busclk.2", &exynos5_clk_sclk_mmc0.clk), + CLKDEV_INIT("exynos4-sdhci.1", "mmc_busclk.2", &exynos5_clk_sclk_mmc1.clk), + CLKDEV_INIT("exynos4-sdhci.2", "mmc_busclk.2", &exynos5_clk_sclk_mmc2.clk), + CLKDEV_INIT("exynos4-sdhci.3", "mmc_busclk.2", &exynos5_clk_sclk_mmc3.clk), CLKDEV_INIT("dma-pl330.0", "apb_pclk", &exynos5_clk_pdma0), CLKDEV_INIT("dma-pl330.1", "apb_pclk", &exynos5_clk_pdma1), CLKDEV_INIT("dma-pl330.2", "apb_pclk", &exynos5_clk_mdma1), diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 8614aab47cc0..5ccd6e80a607 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -326,6 +326,11 @@ static void __init exynos4_map_io(void) s3c_fimc_setname(2, "exynos4-fimc"); s3c_fimc_setname(3, "exynos4-fimc"); + s3c_sdhci_setname(0, "exynos4-sdhci"); + s3c_sdhci_setname(1, "exynos4-sdhci"); + s3c_sdhci_setname(2, "exynos4-sdhci"); + s3c_sdhci_setname(3, "exynos4-sdhci"); + /* The I2C bus controllers are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); s3c_i2c1_setname("s3c2440-i2c"); @@ -344,6 +349,11 @@ static void __init exynos5_map_io(void) s3c_device_i2c0.resource[1].start = EXYNOS5_IRQ_IIC; s3c_device_i2c0.resource[1].end = EXYNOS5_IRQ_IIC; + s3c_sdhci_setname(0, "exynos4-sdhci"); + s3c_sdhci_setname(1, "exynos4-sdhci"); + s3c_sdhci_setname(2, "exynos4-sdhci"); + s3c_sdhci_setname(3, "exynos4-sdhci"); + /* The I2C bus controllers are directly compatible with s3c2440 */ s3c_i2c0_setname("s3c2440-i2c"); s3c_i2c1_setname("s3c2440-i2c"); @@ -537,7 +547,9 @@ void __init exynos5_init_irq(void) { int irq; - gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU); +#ifdef CONFIG_OF + of_irq_init(exynos4_dt_irq_match); +#endif for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) { combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq), diff --git a/arch/arm/mach-exynos/dev-dwmci.c b/arch/arm/mach-exynos/dev-dwmci.c index b025db4bf602..79035018fb74 100644 --- a/arch/arm/mach-exynos/dev-dwmci.c +++ b/arch/arm/mach-exynos/dev-dwmci.c @@ -16,6 +16,7 @@ #include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/interrupt.h> +#include <linux/ioport.h> #include <linux/mmc/dw_mmc.h> #include <plat/devs.h> @@ -33,16 +34,8 @@ static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) } static struct resource exynos4_dwmci_resource[] = { - [0] = { - .start = EXYNOS4_PA_DWMCI, - .end = EXYNOS4_PA_DWMCI + SZ_4K - 1, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_DWMCI, - .end = IRQ_DWMCI, - .flags = IORESOURCE_IRQ, - } + [0] = DEFINE_RES_MEM(EXYNOS4_PA_DWMCI, SZ_4K), + [1] = DEFINE_RES_IRQ(EXYNOS4_IRQ_DWMCI), }; static struct dw_mci_board exynos4_dwci_pdata = { diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index b4f1f902ce6d..ed90aef404c3 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -112,6 +112,7 @@ static struct s3c_sdhci_platdata nuri_hsmmc0_data __initdata = { .host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | MMC_CAP_ERASE), + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL, }; diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c index 7ebf79c2ab34..cb2b027f09a6 100644 --- a/arch/arm/mach-exynos/mach-universal_c210.c +++ b/arch/arm/mach-exynos/mach-universal_c210.c @@ -747,6 +747,7 @@ static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = { .max_width = 8, .host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED), + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, .clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL, }; diff --git a/arch/arm/mach-msm/board-msm8x60.c b/arch/arm/mach-msm/board-msm8x60.c index 962e71169750..fb3496a52ef4 100644 --- a/arch/arm/mach-msm/board-msm8x60.c +++ b/arch/arm/mach-msm/board-msm8x60.c @@ -17,6 +17,7 @@ #include <linux/irqdomain.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/memblock.h> @@ -49,10 +50,22 @@ static void __init msm8x60_map_io(void) msm_map_msm8x60_io(); } +#ifdef CONFIG_OF +static struct of_device_id msm_dt_gic_match[] __initdata = { + { .compatible = "qcom,msm-8660-qgic", .data = gic_of_init }, + {} +}; +#endif + static void __init msm8x60_init_irq(void) { - gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE, - (void *)MSM_QGIC_CPU_BASE); + if (!of_have_populated_dt()) + gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE, + (void *)MSM_QGIC_CPU_BASE); +#ifdef CONFIG_OF + else + of_irq_init(msm_dt_gic_match); +#endif /* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */ writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4); @@ -73,16 +86,8 @@ static struct of_dev_auxdata msm_auxdata_lookup[] __initdata = { {} }; -static struct of_device_id msm_dt_gic_match[] __initdata = { - { .compatible = "qcom,msm-8660-qgic", }, - {} -}; - static void __init msm8x60_dt_init(void) { - irq_domain_generate_simple(msm_dt_gic_match, MSM8X60_QGIC_DIST_PHYS, - GIC_SPI_START); - if (of_machine_is_compatible("qcom,msm8660-surf")) { printk(KERN_INFO "Init surf UART registers\n"); msm8x60_init_uart12dm(); diff --git a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h index c54cef25895c..cbf51ae81855 100644 --- a/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h +++ b/arch/arm/mach-pxa/include/mach/mfp-pxa2xx.h @@ -17,6 +17,7 @@ * * bit 23 - Input/Output (PXA2xx specific) * bit 24 - Wakeup Enable(PXA2xx specific) + * bit 25 - Keep Output (PXA2xx specific) */ #define MFP_DIR_IN (0x0 << 23) @@ -25,6 +26,12 @@ #define MFP_DIR(x) (((x) >> 23) & 0x1) #define MFP_LPM_CAN_WAKEUP (0x1 << 24) + +/* + * MFP_LPM_KEEP_OUTPUT must be specified for pins that need to + * retain their last output level (low or high). + * Note: MFP_LPM_KEEP_OUTPUT has no effect on pins configured for input. + */ #define MFP_LPM_KEEP_OUTPUT (0x1 << 25) #define WAKEUP_ON_EDGE_RISE (MFP_LPM_CAN_WAKEUP | MFP_LPM_EDGE_RISE) diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c index b0a842887780..ef0426a159d4 100644 --- a/arch/arm/mach-pxa/mfp-pxa2xx.c +++ b/arch/arm/mach-pxa/mfp-pxa2xx.c @@ -33,6 +33,8 @@ #define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) #define GPLR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5)) #define GPDR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c) +#define GPSR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x18) +#define GPCR(x) __REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x24) #define PWER_WE35 (1 << 24) @@ -348,6 +350,7 @@ static inline void pxa27x_mfp_init(void) {} #ifdef CONFIG_PM static unsigned long saved_gafr[2][4]; static unsigned long saved_gpdr[4]; +static unsigned long saved_gplr[4]; static unsigned long saved_pgsr[4]; static int pxa2xx_mfp_suspend(void) @@ -366,14 +369,26 @@ static int pxa2xx_mfp_suspend(void) } for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) { - saved_gafr[0][i] = GAFR_L(i); saved_gafr[1][i] = GAFR_U(i); saved_gpdr[i] = GPDR(i * 32); + saved_gplr[i] = GPLR(i * 32); saved_pgsr[i] = PGSR(i); - GPDR(i * 32) = gpdr_lpm[i]; + GPSR(i * 32) = PGSR(i); + GPCR(i * 32) = ~PGSR(i); + } + + /* set GPDR bits taking into account MFP_LPM_KEEP_OUTPUT */ + for (i = 0; i < pxa_last_gpio; i++) { + if ((gpdr_lpm[gpio_to_bank(i)] & GPIO_bit(i)) || + ((gpio_desc[i].config & MFP_LPM_KEEP_OUTPUT) && + (saved_gpdr[gpio_to_bank(i)] & GPIO_bit(i)))) + GPDR(i) |= GPIO_bit(i); + else + GPDR(i) &= ~GPIO_bit(i); } + return 0; } @@ -384,6 +399,8 @@ static void pxa2xx_mfp_resume(void) for (i = 0; i <= gpio_to_bank(pxa_last_gpio); i++) { GAFR_L(i) = saved_gafr[0][i]; GAFR_U(i) = saved_gafr[1][i]; + GPSR(i * 32) = saved_gplr[i]; + GPCR(i * 32) = ~saved_gplr[i]; GPDR(i * 32) = saved_gpdr[i]; PGSR(i) = saved_pgsr[i]; } diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index 6bce78edce7a..4726c246dcdc 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -421,8 +421,11 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info) pxa_register_device(&pxa27x_device_i2c_power, info); } +static struct pxa_gpio_platform_data pxa27x_gpio_info __initdata = { + .gpio_set_wake = gpio_set_wake, +}; + static struct platform_device *devices[] __initdata = { - &pxa_device_gpio, &pxa27x_device_udc, &pxa_device_pmu, &pxa_device_i2s, @@ -458,6 +461,7 @@ static int __init pxa27x_init(void) register_syscore_ops(&pxa2xx_mfp_syscore_ops); register_syscore_ops(&pxa2xx_clock_syscore_ops); + pxa_register_device(&pxa_device_gpio, &pxa27x_gpio_info); ret = platform_add_devices(devices, ARRAY_SIZE(devices)); } diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index 0f3a327ebcaa..b34287ab5afd 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -111,10 +111,6 @@ config S3C24XX_SETUP_TS help Compile in platform device definition for Samsung TouchScreen. -# cpu-specific sections - -if CPU_S3C2410 - config S3C2410_DMA bool depends on S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442) @@ -127,6 +123,10 @@ config S3C2410_PM help Power Management code common to S3C2410 and better +# cpu-specific sections + +if CPU_S3C2410 + config S3C24XX_SIMTEC_NOR bool help diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c index a8933de3d627..32395664e879 100644 --- a/arch/arm/mach-s5pv210/mach-goni.c +++ b/arch/arm/mach-s5pv210/mach-goni.c @@ -25,6 +25,7 @@ #include <linux/gpio_keys.h> #include <linux/input.h> #include <linux/gpio.h> +#include <linux/mmc/host.h> #include <linux/interrupt.h> #include <asm/hardware/vic.h> @@ -765,6 +766,7 @@ static void __init goni_pmic_init(void) /* MoviNAND */ static struct s3c_sdhci_platdata goni_hsmmc0_data __initdata = { .max_width = 4, + .host_caps2 = MMC_CAP2_BROKEN_VOLTAGE, .cd_type = S3C_SDHCI_CD_PERMANENT, }; diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 7c524b4e415d..16be4c56abe3 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -306,7 +306,7 @@ void sa11x0_register_irda(struct irda_platform_data *irda) } static struct resource sa1100_rtc_resources[] = { - DEFINE_RES_MEM(0x90010000, 0x9001003f), + DEFINE_RES_MEM(0x90010000, 0x40), DEFINE_RES_IRQ_NAMED(IRQ_RTC1Hz, "rtc 1Hz"), DEFINE_RES_IRQ_NAMED(IRQ_RTCAlrm, "rtc alarm"), }; diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 1621ad07d284..33339745d432 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -1667,8 +1667,10 @@ void __init u300_init_irq(void) for (i = 0; i < U300_VIC_IRQS_END; i++) set_bit(i, (unsigned long *) &mask[0]); - vic_init((void __iomem *) U300_INTCON0_VBASE, 0, mask[0], mask[0]); - vic_init((void __iomem *) U300_INTCON1_VBASE, 32, mask[1], mask[1]); + vic_init((void __iomem *) U300_INTCON0_VBASE, IRQ_U300_INTCON0_START, + mask[0], mask[0]); + vic_init((void __iomem *) U300_INTCON1_VBASE, IRQ_U300_INTCON1_START, + mask[1], mask[1]); } diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c index a38f80238ea9..cb04bd6ab3e7 100644 --- a/arch/arm/mach-u300/i2c.c +++ b/arch/arm/mach-u300/i2c.c @@ -146,9 +146,6 @@ static struct ab3100_platform_data ab3100_plf_data = { .min_uV = 1800000, .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, - .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, .always_on = 1, .boot_on = 1, }, @@ -160,9 +157,6 @@ static struct ab3100_platform_data ab3100_plf_data = { .min_uV = 2500000, .max_uV = 2500000, .valid_modes_mask = REGULATOR_MODE_NORMAL, - .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, .always_on = 1, .boot_on = 1, }, @@ -230,8 +224,7 @@ static struct ab3100_platform_data ab3100_plf_data = { .max_uV = 1800000, .valid_modes_mask = REGULATOR_MODE_NORMAL, .valid_ops_mask = - REGULATOR_CHANGE_VOLTAGE | - REGULATOR_CHANGE_STATUS, + REGULATOR_CHANGE_VOLTAGE, .always_on = 1, .boot_on = 1, }, diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h index ee78a26707eb..ec09c1e07b1a 100644 --- a/arch/arm/mach-u300/include/mach/irqs.h +++ b/arch/arm/mach-u300/include/mach/irqs.h @@ -12,101 +12,101 @@ #ifndef __MACH_IRQS_H #define __MACH_IRQS_H -#define IRQ_U300_INTCON0_START 0 -#define IRQ_U300_INTCON1_START 32 +#define IRQ_U300_INTCON0_START 1 +#define IRQ_U300_INTCON1_START 33 /* These are on INTCON0 - 30 lines */ -#define IRQ_U300_IRQ0_EXT 0 -#define IRQ_U300_IRQ1_EXT 1 -#define IRQ_U300_DMA 2 -#define IRQ_U300_VIDEO_ENC_0 3 -#define IRQ_U300_VIDEO_ENC_1 4 -#define IRQ_U300_AAIF_RX 5 -#define IRQ_U300_AAIF_TX 6 -#define IRQ_U300_AAIF_VGPIO 7 -#define IRQ_U300_AAIF_WAKEUP 8 -#define IRQ_U300_PCM_I2S0_FRAME 9 -#define IRQ_U300_PCM_I2S0_FIFO 10 -#define IRQ_U300_PCM_I2S1_FRAME 11 -#define IRQ_U300_PCM_I2S1_FIFO 12 -#define IRQ_U300_XGAM_GAMCON 13 -#define IRQ_U300_XGAM_CDI 14 -#define IRQ_U300_XGAM_CDICON 15 +#define IRQ_U300_IRQ0_EXT 1 +#define IRQ_U300_IRQ1_EXT 2 +#define IRQ_U300_DMA 3 +#define IRQ_U300_VIDEO_ENC_0 4 +#define IRQ_U300_VIDEO_ENC_1 5 +#define IRQ_U300_AAIF_RX 6 +#define IRQ_U300_AAIF_TX 7 +#define IRQ_U300_AAIF_VGPIO 8 +#define IRQ_U300_AAIF_WAKEUP 9 +#define IRQ_U300_PCM_I2S0_FRAME 10 +#define IRQ_U300_PCM_I2S0_FIFO 11 +#define IRQ_U300_PCM_I2S1_FRAME 12 +#define IRQ_U300_PCM_I2S1_FIFO 13 +#define IRQ_U300_XGAM_GAMCON 14 +#define IRQ_U300_XGAM_CDI 15 +#define IRQ_U300_XGAM_CDICON 16 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) /* MMIACC not used on the DB3210 or DB3350 chips */ -#define IRQ_U300_XGAM_MMIACC 16 +#define IRQ_U300_XGAM_MMIACC 17 #endif -#define IRQ_U300_XGAM_PDI 17 -#define IRQ_U300_XGAM_PDICON 18 -#define IRQ_U300_XGAM_GAMEACC 19 -#define IRQ_U300_XGAM_MCIDCT 20 -#define IRQ_U300_APEX 21 -#define IRQ_U300_UART0 22 -#define IRQ_U300_SPI 23 -#define IRQ_U300_TIMER_APP_OS 24 -#define IRQ_U300_TIMER_APP_DD 25 -#define IRQ_U300_TIMER_APP_GP1 26 -#define IRQ_U300_TIMER_APP_GP2 27 -#define IRQ_U300_TIMER_OS 28 -#define IRQ_U300_TIMER_MS 29 -#define IRQ_U300_KEYPAD_KEYBF 30 -#define IRQ_U300_KEYPAD_KEYBR 31 +#define IRQ_U300_XGAM_PDI 18 +#define IRQ_U300_XGAM_PDICON 19 +#define IRQ_U300_XGAM_GAMEACC 20 +#define IRQ_U300_XGAM_MCIDCT 21 +#define IRQ_U300_APEX 22 +#define IRQ_U300_UART0 23 +#define IRQ_U300_SPI 24 +#define IRQ_U300_TIMER_APP_OS 25 +#define IRQ_U300_TIMER_APP_DD 26 +#define IRQ_U300_TIMER_APP_GP1 27 +#define IRQ_U300_TIMER_APP_GP2 28 +#define IRQ_U300_TIMER_OS 29 +#define IRQ_U300_TIMER_MS 30 +#define IRQ_U300_KEYPAD_KEYBF 31 +#define IRQ_U300_KEYPAD_KEYBR 32 /* These are on INTCON1 - 32 lines */ -#define IRQ_U300_GPIO_PORT0 32 -#define IRQ_U300_GPIO_PORT1 33 -#define IRQ_U300_GPIO_PORT2 34 +#define IRQ_U300_GPIO_PORT0 33 +#define IRQ_U300_GPIO_PORT1 34 +#define IRQ_U300_GPIO_PORT2 35 #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) || \ defined(CONFIG_MACH_U300_BS335) /* These are for DB3150, DB3200 and DB3350 */ -#define IRQ_U300_WDOG 35 -#define IRQ_U300_EVHIST 36 -#define IRQ_U300_MSPRO 37 -#define IRQ_U300_MMCSD_MCIINTR0 38 -#define IRQ_U300_MMCSD_MCIINTR1 39 -#define IRQ_U300_I2C0 40 -#define IRQ_U300_I2C1 41 -#define IRQ_U300_RTC 42 -#define IRQ_U300_NFIF 43 -#define IRQ_U300_NFIF2 44 +#define IRQ_U300_WDOG 36 +#define IRQ_U300_EVHIST 37 +#define IRQ_U300_MSPRO 38 +#define IRQ_U300_MMCSD_MCIINTR0 39 +#define IRQ_U300_MMCSD_MCIINTR1 40 +#define IRQ_U300_I2C0 41 +#define IRQ_U300_I2C1 42 +#define IRQ_U300_RTC 43 +#define IRQ_U300_NFIF 44 +#define IRQ_U300_NFIF2 45 #endif /* DB3150 and DB3200 have only 45 IRQs */ #if defined(CONFIG_MACH_U300_BS2X) || defined(CONFIG_MACH_U300_BS330) -#define U300_VIC_IRQS_END 45 +#define U300_VIC_IRQS_END 46 #endif /* The DB3350-specific interrupt lines */ #ifdef CONFIG_MACH_U300_BS335 -#define IRQ_U300_ISP_F0 45 -#define IRQ_U300_ISP_F1 46 -#define IRQ_U300_ISP_F2 47 -#define IRQ_U300_ISP_F3 48 -#define IRQ_U300_ISP_F4 49 -#define IRQ_U300_GPIO_PORT3 50 -#define IRQ_U300_SYSCON_PLL_LOCK 51 -#define IRQ_U300_UART1 52 -#define IRQ_U300_GPIO_PORT4 53 -#define IRQ_U300_GPIO_PORT5 54 -#define IRQ_U300_GPIO_PORT6 55 -#define U300_VIC_IRQS_END 56 +#define IRQ_U300_ISP_F0 46 +#define IRQ_U300_ISP_F1 47 +#define IRQ_U300_ISP_F2 48 +#define IRQ_U300_ISP_F3 49 +#define IRQ_U300_ISP_F4 50 +#define IRQ_U300_GPIO_PORT3 51 +#define IRQ_U300_SYSCON_PLL_LOCK 52 +#define IRQ_U300_UART1 53 +#define IRQ_U300_GPIO_PORT4 54 +#define IRQ_U300_GPIO_PORT5 55 +#define IRQ_U300_GPIO_PORT6 56 +#define U300_VIC_IRQS_END 57 #endif /* The DB3210-specific interrupt lines */ #ifdef CONFIG_MACH_U300_BS365 -#define IRQ_U300_GPIO_PORT3 35 -#define IRQ_U300_GPIO_PORT4 36 -#define IRQ_U300_WDOG 37 -#define IRQ_U300_EVHIST 38 -#define IRQ_U300_MSPRO 39 -#define IRQ_U300_MMCSD_MCIINTR0 40 -#define IRQ_U300_MMCSD_MCIINTR1 41 -#define IRQ_U300_I2C0 42 -#define IRQ_U300_I2C1 43 -#define IRQ_U300_RTC 44 -#define IRQ_U300_NFIF 45 -#define IRQ_U300_NFIF2 46 -#define IRQ_U300_SYSCON_PLL_LOCK 47 -#define U300_VIC_IRQS_END 48 +#define IRQ_U300_GPIO_PORT3 36 +#define IRQ_U300_GPIO_PORT4 37 +#define IRQ_U300_WDOG 38 +#define IRQ_U300_EVHIST 39 +#define IRQ_U300_MSPRO 40 +#define IRQ_U300_MMCSD_MCIINTR0 41 +#define IRQ_U300_MMCSD_MCIINTR1 42 +#define IRQ_U300_I2C0 43 +#define IRQ_U300_I2C1 44 +#define IRQ_U300_RTC 45 +#define IRQ_U300_NFIF 46 +#define IRQ_U300_NFIF2 47 +#define IRQ_U300_SYSCON_PLL_LOCK 48 +#define U300_VIC_IRQS_END 49 #endif /* Maximum 8*7 GPIO lines */ @@ -117,6 +117,6 @@ #define IRQ_U300_GPIO_END (U300_VIC_IRQS_END) #endif -#define NR_IRQS (IRQ_U300_GPIO_END) +#define NR_IRQS (IRQ_U300_GPIO_END - IRQ_U300_INTCON0_START) #endif diff --git a/arch/arm/mach-ux500/mbox-db5500.c b/arch/arm/mach-ux500/mbox-db5500.c index 2b2d51caf9d8..0127490218cd 100644 --- a/arch/arm/mach-ux500/mbox-db5500.c +++ b/arch/arm/mach-ux500/mbox-db5500.c @@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct device *dev, return sprintf(buf, "0x%X\n", mbox_value); } -static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo); +static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo); static int mbox_show(struct seq_file *s, void *data) { diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S index ff1f7cc11f87..80741992a9fc 100644 --- a/arch/arm/mm/abort-ev6.S +++ b/arch/arm/mm/abort-ev6.S @@ -26,18 +26,23 @@ ENTRY(v6_early_abort) mrc p15, 0, r1, c5, c0, 0 @ get FSR mrc p15, 0, r0, c6, c0, 0 @ get FAR /* - * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR (erratum 326103). - * The test below covers all the write situations, including Java bytecodes + * Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR. */ - bic r1, r1, #1 << 11 @ clear bit 11 of FSR +#ifdef CONFIG_ARM_ERRATA_326103 + ldr ip, =0x4107b36 + mrc p15, 0, r3, c0, c0, 0 @ get processor id + teq ip, r3, lsr #4 @ r0 ARM1136? + bne do_DataAbort tst r5, #PSR_J_BIT @ Java? + tsteq r5, #PSR_T_BIT @ Thumb? bne do_DataAbort - do_thumb_abort fsr=r1, pc=r4, psr=r5, tmp=r3 - ldreq r3, [r4] @ read aborted ARM instruction + bic r1, r1, #1 << 11 @ clear bit 11 of FSR + ldr r3, [r4] @ read aborted ARM instruction #ifdef CONFIG_CPU_ENDIAN_BE8 - reveq r3, r3 + rev r3, r3 #endif do_ldrd_abort tmp=ip, insn=r3 tst r3, #1 << 20 @ L = 0 -> write orreq r1, r1, #1 << 11 @ yes. +#endif b do_DataAbort diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index a53fd2aaa2f4..2a8e380501e8 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -32,6 +32,7 @@ static void __iomem *l2x0_base; static DEFINE_RAW_SPINLOCK(l2x0_lock); static u32 l2x0_way_mask; /* Bitmask of active ways */ static u32 l2x0_size; +static unsigned long sync_reg_offset = L2X0_CACHE_SYNC; struct l2x0_regs l2x0_saved_regs; @@ -61,12 +62,7 @@ static inline void cache_sync(void) { void __iomem *base = l2x0_base; -#ifdef CONFIG_PL310_ERRATA_753970 - /* write to an unmmapped register */ - writel_relaxed(0, base + L2X0_DUMMY_REG); -#else - writel_relaxed(0, base + L2X0_CACHE_SYNC); -#endif + writel_relaxed(0, base + sync_reg_offset); cache_wait(base + L2X0_CACHE_SYNC, 1); } @@ -85,10 +81,13 @@ static inline void l2x0_inv_line(unsigned long addr) } #if defined(CONFIG_PL310_ERRATA_588369) || defined(CONFIG_PL310_ERRATA_727915) +static inline void debug_writel(unsigned long val) +{ + if (outer_cache.set_debug) + outer_cache.set_debug(val); +} -#define debug_writel(val) outer_cache.set_debug(val) - -static void l2x0_set_debug(unsigned long val) +static void pl310_set_debug(unsigned long val) { writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL); } @@ -98,7 +97,7 @@ static inline void debug_writel(unsigned long val) { } -#define l2x0_set_debug NULL +#define pl310_set_debug NULL #endif #ifdef CONFIG_PL310_ERRATA_588369 @@ -331,6 +330,11 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) else ways = 8; type = "L310"; +#ifdef CONFIG_PL310_ERRATA_753970 + /* Unmapped register. */ + sync_reg_offset = L2X0_DUMMY_REG; +#endif + outer_cache.set_debug = pl310_set_debug; break; case L2X0_CACHE_ID_PART_L210: ways = (aux >> 13) & 0xf; @@ -379,7 +383,6 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) outer_cache.flush_all = l2x0_flush_all; outer_cache.inv_all = l2x0_inv_all; outer_cache.disable = l2x0_disable; - outer_cache.set_debug = l2x0_set_debug; printk(KERN_INFO "%s cache controller enabled\n", type); printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n", diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 595079fa9d1d..8f5813bbffb5 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -293,11 +293,11 @@ EXPORT_SYMBOL(pfn_valid); #endif #ifndef CONFIG_SPARSEMEM -static void arm_memory_present(void) +static void __init arm_memory_present(void) { } #else -static void arm_memory_present(void) +static void __init arm_memory_present(void) { struct memblock_region *reg; diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index b86f8933ff91..2c7cf2f9c837 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -618,8 +618,8 @@ static void __init alloc_init_section(pud_t *pud, unsigned long addr, } } -static void alloc_init_pud(pgd_t *pgd, unsigned long addr, unsigned long end, - unsigned long phys, const struct mem_type *type) +static void __init alloc_init_pud(pgd_t *pgd, unsigned long addr, + unsigned long end, unsigned long phys, const struct mem_type *type) { pud_t *pud = pud_offset(pgd, addr); unsigned long next; diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index ecdb3da0dea9..c58d896cd5c3 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -916,6 +916,13 @@ void omap_start_dma(int lch) l |= OMAP_DMA_CCR_BUFFERING_DISABLE; l |= OMAP_DMA_CCR_EN; + /* + * As dma_write() uses IO accessors which are weakly ordered, there + * is no guarantee that data in coherent DMA memory will be visible + * to the DMA device. Add a memory barrier here to ensure that any + * such data is visible prior to enabling DMA. + */ + mb(); p->dma_write(l, CCR, lch); dma_chan[lch].flags |= OMAP_DMA_ACTIVE; @@ -965,6 +972,13 @@ void omap_stop_dma(int lch) p->dma_write(l, CCR, lch); } + /* + * Ensure that data transferred by DMA is visible to any access + * after DMA has been disabled. This is important for coherent + * DMA regions. + */ + mb(); + if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) { int next_lch, cur_lch = lch; char dma_chan_link_map[dma_lch_count]; diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h index 317e246ffc56..e834c5ef437c 100644 --- a/arch/arm/plat-samsung/include/plat/sdhci.h +++ b/arch/arm/plat-samsung/include/plat/sdhci.h @@ -18,6 +18,8 @@ #ifndef __PLAT_S3C_SDHCI_H #define __PLAT_S3C_SDHCI_H __FILE__ +#include <plat/devs.h> + struct platform_device; struct mmc_host; struct mmc_card; @@ -356,4 +358,30 @@ static inline void exynos4_default_sdhci3(void) { } #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */ +static inline void s3c_sdhci_setname(int id, char *name) +{ + switch (id) { +#ifdef CONFIG_S3C_DEV_HSMMC + case 0: + s3c_device_hsmmc0.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC1 + case 1: + s3c_device_hsmmc1.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC2 + case 2: + s3c_device_hsmmc2.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC3 + case 3: + s3c_device_hsmmc3.name = name; + break; +#endif + } +} + #endif /* __PLAT_S3C_SDHCI_H */ diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 858748eaa144..bc683b8219b5 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -17,6 +17,8 @@ #include <linux/sched.h> #include <linux/smp.h> #include <linux/init.h> +#include <linux/uaccess.h> +#include <linux/user.h> #include <asm/cp15.h> #include <asm/cputype.h> @@ -529,6 +531,103 @@ void vfp_flush_hwstate(struct thread_info *thread) } /* + * Save the current VFP state into the provided structures and prepare + * for entry into a new function (signal handler). + */ +int vfp_preserve_user_clear_hwstate(struct user_vfp __user *ufp, + struct user_vfp_exc __user *ufp_exc) +{ + struct thread_info *thread = current_thread_info(); + struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; + int err = 0; + + /* Ensure that the saved hwstate is up-to-date. */ + vfp_sync_hwstate(thread); + + /* + * Copy the floating point registers. There can be unused + * registers see asm/hwcap.h for details. + */ + err |= __copy_to_user(&ufp->fpregs, &hwstate->fpregs, + sizeof(hwstate->fpregs)); + /* + * Copy the status and control register. + */ + __put_user_error(hwstate->fpscr, &ufp->fpscr, err); + + /* + * Copy the exception registers. + */ + __put_user_error(hwstate->fpexc, &ufp_exc->fpexc, err); + __put_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); + __put_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); + + if (err) + return -EFAULT; + + /* Ensure that VFP is disabled. */ + vfp_flush_hwstate(thread); + + /* + * As per the PCS, clear the length and stride bits for function + * entry. + */ + hwstate->fpscr &= ~(FPSCR_LENGTH_MASK | FPSCR_STRIDE_MASK); + + /* + * Disable VFP in the hwstate so that we can detect if it gets + * used. + */ + hwstate->fpexc &= ~FPEXC_EN; + return 0; +} + +/* Sanitise and restore the current VFP state from the provided structures. */ +int vfp_restore_user_hwstate(struct user_vfp __user *ufp, + struct user_vfp_exc __user *ufp_exc) +{ + struct thread_info *thread = current_thread_info(); + struct vfp_hard_struct *hwstate = &thread->vfpstate.hard; + unsigned long fpexc; + int err = 0; + + /* + * If VFP has been used, then disable it to avoid corrupting + * the new thread state. + */ + if (hwstate->fpexc & FPEXC_EN) + vfp_flush_hwstate(thread); + + /* + * Copy the floating point registers. There can be unused + * registers see asm/hwcap.h for details. + */ + err |= __copy_from_user(&hwstate->fpregs, &ufp->fpregs, + sizeof(hwstate->fpregs)); + /* + * Copy the status and control register. + */ + __get_user_error(hwstate->fpscr, &ufp->fpscr, err); + + /* + * Sanitise and restore the exception registers. + */ + __get_user_error(fpexc, &ufp_exc->fpexc, err); + + /* Ensure the VFP is enabled. */ + fpexc |= FPEXC_EN; + + /* Ensure FPINST2 is invalid and the exception flag is cleared. */ + fpexc &= ~(FPEXC_EX | FPEXC_FP2V); + hwstate->fpexc = fpexc; + + __get_user_error(hwstate->fpinst, &ufp_exc->fpinst, err); + __get_user_error(hwstate->fpinst2, &ufp_exc->fpinst2, err); + + return err ? -EFAULT : 0; +} + +/* * VFP hardware can lose all context when a CPU goes offline. * As we will be running in SMP mode with CPU hotplug, we will save the * hardware state at every thread switch. We clear our held state when diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c index 1633a6f306c0..85038f54354d 100644 --- a/arch/blackfin/mach-bf538/boards/ezkit.c +++ b/arch/blackfin/mach-bf538/boards/ezkit.c @@ -38,7 +38,7 @@ static struct platform_device rtc_device = { .name = "rtc-bfin", .id = -1, }; -#endif +#endif /* CONFIG_RTC_DRV_BFIN */ #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) #ifdef CONFIG_SERIAL_BFIN_UART0 @@ -100,7 +100,7 @@ static struct platform_device bfin_uart0_device = { .platform_data = &bfin_uart0_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_UART0 */ #ifdef CONFIG_SERIAL_BFIN_UART1 static struct resource bfin_uart1_resources[] = { { @@ -148,7 +148,7 @@ static struct platform_device bfin_uart1_device = { .platform_data = &bfin_uart1_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_UART1 */ #ifdef CONFIG_SERIAL_BFIN_UART2 static struct resource bfin_uart2_resources[] = { { @@ -196,8 +196,8 @@ static struct platform_device bfin_uart2_device = { .platform_data = &bfin_uart2_peripherals, /* Passed to driver */ }, }; -#endif -#endif +#endif /* CONFIG_SERIAL_BFIN_UART2 */ +#endif /* CONFIG_SERIAL_BFIN */ #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE) #ifdef CONFIG_BFIN_SIR0 @@ -224,7 +224,7 @@ static struct platform_device bfin_sir0_device = { .num_resources = ARRAY_SIZE(bfin_sir0_resources), .resource = bfin_sir0_resources, }; -#endif +#endif /* CONFIG_BFIN_SIR0 */ #ifdef CONFIG_BFIN_SIR1 static struct resource bfin_sir1_resources[] = { { @@ -249,7 +249,7 @@ static struct platform_device bfin_sir1_device = { .num_resources = ARRAY_SIZE(bfin_sir1_resources), .resource = bfin_sir1_resources, }; -#endif +#endif /* CONFIG_BFIN_SIR1 */ #ifdef CONFIG_BFIN_SIR2 static struct resource bfin_sir2_resources[] = { { @@ -274,8 +274,8 @@ static struct platform_device bfin_sir2_device = { .num_resources = ARRAY_SIZE(bfin_sir2_resources), .resource = bfin_sir2_resources, }; -#endif -#endif +#endif /* CONFIG_BFIN_SIR2 */ +#endif /* CONFIG_BFIN_SIR */ #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE) #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART @@ -311,7 +311,7 @@ static struct platform_device bfin_sport0_uart_device = { .platform_data = &bfin_sport0_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT0_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART static struct resource bfin_sport1_uart_resources[] = { { @@ -345,7 +345,7 @@ static struct platform_device bfin_sport1_uart_device = { .platform_data = &bfin_sport1_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT1_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT2_UART static struct resource bfin_sport2_uart_resources[] = { { @@ -379,7 +379,7 @@ static struct platform_device bfin_sport2_uart_device = { .platform_data = &bfin_sport2_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT2_UART */ #ifdef CONFIG_SERIAL_BFIN_SPORT3_UART static struct resource bfin_sport3_uart_resources[] = { { @@ -413,8 +413,8 @@ static struct platform_device bfin_sport3_uart_device = { .platform_data = &bfin_sport3_peripherals, /* Passed to driver */ }, }; -#endif -#endif +#endif /* CONFIG_SERIAL_BFIN_SPORT3_UART */ +#endif /* CONFIG_SERIAL_BFIN_SPORT */ #if defined(CONFIG_CAN_BFIN) || defined(CONFIG_CAN_BFIN_MODULE) static unsigned short bfin_can_peripherals[] = { @@ -452,7 +452,7 @@ static struct platform_device bfin_can_device = { .platform_data = &bfin_can_peripherals, /* Passed to driver */ }, }; -#endif +#endif /* CONFIG_CAN_BFIN */ /* * USB-LAN EzExtender board @@ -488,7 +488,7 @@ static struct platform_device smc91x_device = { .platform_data = &smc91x_info, }, }; -#endif +#endif /* CONFIG_SMC91X */ #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE) /* all SPI peripherals info goes here */ @@ -518,7 +518,8 @@ static struct flash_platform_data bfin_spi_flash_data = { static struct bfin5xx_spi_chip spi_flash_chip_info = { .enable_dma = 0, /* use dma transfer with this chip*/ }; -#endif +#endif /* CONFIG_MTD_M25P80 */ +#endif /* CONFIG_SPI_BFIN5XX */ #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE) #include <linux/spi/ad7879.h> @@ -535,7 +536,7 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = { .gpio_export = 1, /* Export GPIO to gpiolib */ .gpio_base = -1, /* Dynamic allocation */ }; -#endif +#endif /* CONFIG_TOUCHSCREEN_AD7879 */ #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE) #include <asm/bfin-lq035q1.h> @@ -564,7 +565,7 @@ static struct platform_device bfin_lq035q1_device = { .platform_data = &bfin_lq035q1_data, }, }; -#endif +#endif /* CONFIG_FB_BFIN_LQ035Q1 */ static struct spi_board_info bf538_spi_board_info[] __initdata = { #if defined(CONFIG_MTD_M25P80) \ @@ -579,7 +580,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .controller_data = &spi_flash_chip_info, .mode = SPI_MODE_3, }, -#endif +#endif /* CONFIG_MTD_M25P80 */ #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE) { .modalias = "ad7879", @@ -590,7 +591,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .chip_select = 1, .mode = SPI_CPHA | SPI_CPOL, }, -#endif +#endif /* CONFIG_TOUCHSCREEN_AD7879_SPI */ #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE) { .modalias = "bfin-lq035q1-spi", @@ -599,7 +600,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .chip_select = 2, .mode = SPI_CPHA | SPI_CPOL, }, -#endif +#endif /* CONFIG_FB_BFIN_LQ035Q1 */ #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE) { .modalias = "spidev", @@ -607,7 +608,7 @@ static struct spi_board_info bf538_spi_board_info[] __initdata = { .bus_num = 0, .chip_select = 1, }, -#endif +#endif /* CONFIG_SPI_SPIDEV */ }; /* SPI (0) */ @@ -716,8 +717,6 @@ static struct platform_device bf538_spi_master2 = { }, }; -#endif /* spi master and devices */ - #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE) static struct resource bfin_twi0_resource[] = { [0] = { @@ -759,8 +758,8 @@ static struct platform_device i2c_bfin_twi1_device = { .num_resources = ARRAY_SIZE(bfin_twi1_resource), .resource = bfin_twi1_resource, }; -#endif -#endif +#endif /* CONFIG_BF542 */ +#endif /* CONFIG_I2C_BLACKFIN_TWI */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) #include <linux/gpio_keys.h> diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index 37302218ca4a..0f2367cc5493 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -22,6 +22,7 @@ #include <linux/bootmem.h> #include <linux/genalloc.h> #include <asm/dma-mapping.h> +#include <linux/module.h> struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index 18c4f0b0f4ba..ff02821bfb7e 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -1,7 +1,7 @@ /* * Process creation support for Hexagon * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -88,7 +88,7 @@ void (*idle_sleep)(void) = default_idle; void cpu_idle(void) { while (1) { - tick_nohz_stop_sched_tick(1); + tick_nohz_idle_enter(); local_irq_disable(); while (!need_resched()) { idle_sleep(); @@ -97,7 +97,7 @@ void cpu_idle(void) local_irq_disable(); } local_irq_enable(); - tick_nohz_restart_sched_tick(); + tick_nohz_idle_exit(); schedule(); } } diff --git a/arch/hexagon/kernel/ptrace.c b/arch/hexagon/kernel/ptrace.c index 32342de1a79c..96c3b2c4dbad 100644 --- a/arch/hexagon/kernel/ptrace.c +++ b/arch/hexagon/kernel/ptrace.c @@ -28,6 +28,7 @@ #include <linux/ptrace.h> #include <linux/regset.h> #include <linux/user.h> +#include <linux/elf.h> #include <asm/user.h> diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 9b44a9e2d05a..1298141874a3 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -1,7 +1,7 @@ /* * SMP support for Hexagon * - * Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and @@ -28,6 +28,7 @@ #include <linux/sched.h> #include <linux/smp.h> #include <linux/spinlock.h> +#include <linux/cpu.h> #include <asm/time.h> /* timer_interrupt */ #include <asm/hexagon_vm.h> @@ -177,7 +178,12 @@ void __cpuinit start_secondary(void) printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu); + notify_cpu_starting(cpu); + + ipi_call_lock(); set_cpu_online(cpu, true); + ipi_call_unlock(); + local_irq_enable(); cpu_idle(); diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c index 6bee15c9c113..5d9b33b67935 100644 --- a/arch/hexagon/kernel/time.c +++ b/arch/hexagon/kernel/time.c @@ -28,6 +28,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_irq.h> +#include <linux/module.h> #include <asm/timer-regs.h> #include <asm/hexagon_vm.h> diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c index f212a453b527..5d39f42f7085 100644 --- a/arch/hexagon/kernel/vdso.c +++ b/arch/hexagon/kernel/vdso.c @@ -21,6 +21,7 @@ #include <linux/err.h> #include <linux/mm.h> #include <linux/vmalloc.h> +#include <linux/binfmts.h> #include <asm/vdso.h> diff --git a/arch/mips/ath79/dev-wmac.c b/arch/mips/ath79/dev-wmac.c index e21507052066..9c717bf98ffe 100644 --- a/arch/mips/ath79/dev-wmac.c +++ b/arch/mips/ath79/dev-wmac.c @@ -58,8 +58,8 @@ static void __init ar913x_wmac_setup(void) static int ar933x_wmac_reset(void) { - ath79_device_reset_clear(AR933X_RESET_WMAC); ath79_device_reset_set(AR933X_RESET_WMAC); + ath79_device_reset_clear(AR933X_RESET_WMAC); return 0; } diff --git a/arch/mips/include/asm/mach-jz4740/irq.h b/arch/mips/include/asm/mach-jz4740/irq.h index a865c983c70a..5ad1a9c113c6 100644 --- a/arch/mips/include/asm/mach-jz4740/irq.h +++ b/arch/mips/include/asm/mach-jz4740/irq.h @@ -45,7 +45,7 @@ #define JZ4740_IRQ_LCD JZ4740_IRQ(30) /* 2nd-level interrupts */ -#define JZ4740_IRQ_DMA(x) (JZ4740_IRQ(32) + (X)) +#define JZ4740_IRQ_DMA(x) (JZ4740_IRQ(32) + (x)) #define JZ4740_IRQ_INTC_GPIO(x) (JZ4740_IRQ_GPIO0 - (x)) #define JZ4740_IRQ_GPIO(x) (JZ4740_IRQ(48) + (x)) diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h index 73c0d45798de..9b02cfba7449 100644 --- a/arch/mips/include/asm/mmu_context.h +++ b/arch/mips/include/asm/mmu_context.h @@ -37,12 +37,6 @@ extern void tlbmiss_handler_setup_pgd(unsigned long pgd); write_c0_xcontext((unsigned long) smp_processor_id() << 51); \ } while (0) - -static inline unsigned long get_current_pgd(void) -{ - return PHYS_TO_XKSEG_CACHED((read_c0_context() >> 11) & ~0xfffUL); -} - #else /* CONFIG_MIPS_PGD_C0_CONTEXT: using pgd_current*/ /* diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 185ca00c4c84..d5a338a1739c 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -257,11 +257,8 @@ asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -286,11 +283,8 @@ asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -362,10 +356,7 @@ asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&blocked, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = blocked; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&blocked); sig = restore_sigcontext(®s, &frame->sf_sc); if (sig < 0) @@ -401,10 +392,7 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) @@ -580,12 +568,7 @@ static int handle_signal(unsigned long sig, siginfo_t *info, if (ret) return ret; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + block_sigmask(ka, sig); return ret; } diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 06b5da392e24..ac3b8d89aae5 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -290,11 +290,8 @@ asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -318,11 +315,8 @@ asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) return -EFAULT; sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -488,10 +482,7 @@ asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&blocked, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = blocked; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&blocked); sig = restore_sigcontext32(®s, &frame->sf_sc); if (sig < 0) @@ -529,10 +520,7 @@ asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext32(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index ae29e894ab8d..86eb4b04631c 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -93,11 +93,8 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) sigset_from_compat(&newset, &uset); sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); current->saved_sigmask = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&newset); current->state = TASK_INTERRUPTIBLE; schedule(); @@ -121,10 +118,7 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); sig = restore_sigcontext(®s, &frame->rs_uc.uc_mcontext); if (sig < 0) diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 4f004596a6e7..0b3393381a81 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -104,7 +104,7 @@ static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp) static void pdc_console_tty_close(struct tty_struct *tty, struct file *filp) { - if (!tty->count) { + if (tty->count == 1) { del_timer_sync(&pdc_console_timer); tty_port_tty_set(&tty_port, NULL); } diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi new file mode 100644 index 000000000000..1cf0b77b1efe --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/pq3-mpic-message-B.dtsi @@ -0,0 +1,43 @@ +/* + * PQ3 MPIC Message (Group B) device tree stub [ controller @ offset 0x42400 ] + * + * Copyright 2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +message@42400 { + compatible = "fsl,mpic-v3.1-msgr"; + reg = <0x42400 0x200>; + interrupts = < + 0xb4 2 0 0 + 0xb5 2 0 0 + 0xb6 2 0 0 + 0xb7 2 0 0>; +}; diff --git a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi index fdedf7b1fe0f..71c30eb10056 100644 --- a/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi +++ b/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi @@ -53,6 +53,16 @@ timer@41100 { 3 0 3 0>; }; +message@41400 { + compatible = "fsl,mpic-v3.1-msgr"; + reg = <0x41400 0x200>; + interrupts = < + 0xb0 2 0 0 + 0xb1 2 0 0 + 0xb2 2 0 0 + 0xb3 2 0 0>; +}; + msi@41600 { compatible = "fsl,mpic-msi"; reg = <0x41600 0x80>; diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h index e648af92ced1..0e40843a1c6e 100644 --- a/arch/powerpc/include/asm/irq.h +++ b/arch/powerpc/include/asm/irq.h @@ -18,10 +18,6 @@ #include <linux/atomic.h> -/* Define a way to iterate across irqs. */ -#define for_each_irq(i) \ - for ((i) = 0; (i) < NR_IRQS; ++(i)) - extern atomic_t ppc_n_lost_interrupts; /* This number is used when no interrupt has been assigned */ diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h index c65b9294376e..c9f698a994be 100644 --- a/arch/powerpc/include/asm/mpic.h +++ b/arch/powerpc/include/asm/mpic.h @@ -275,9 +275,6 @@ struct mpic unsigned int isu_mask; /* Number of sources */ unsigned int num_sources; - /* default senses array */ - unsigned char *senses; - unsigned int senses_count; /* vector numbers used for internal sources (ipi/timers) */ unsigned int ipi_vecs[4]; @@ -415,21 +412,6 @@ extern struct mpic *mpic_alloc(struct device_node *node, extern void mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, phys_addr_t phys_addr); -/* Set default sense codes - * - * @mpic: controller - * @senses: array of sense codes - * @count: size of above array - * - * Optionally provide an array (indexed on hardware interrupt numbers - * for this MPIC) of default sense codes for the chip. Those are linux - * sense codes IRQ_TYPE_* - * - * The driver gets ownership of the pointer, don't dispose of it or - * anything like that. __init only. - */ -extern void mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count); - /* Initialize the controller. After this has been called, none of the above * should be called again for this mpic diff --git a/arch/powerpc/include/asm/mpic_msgr.h b/arch/powerpc/include/asm/mpic_msgr.h index 3ec37dc9003e..326d33ca55cd 100644 --- a/arch/powerpc/include/asm/mpic_msgr.h +++ b/arch/powerpc/include/asm/mpic_msgr.h @@ -13,6 +13,7 @@ #include <linux/types.h> #include <linux/spinlock.h> +#include <asm/smp.h> struct mpic_msgr { u32 __iomem *base; diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index b86faa9107da..8a97aa7289d3 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -15,11 +15,6 @@ #ifndef __ASM_POWERPC_REG_BOOKE_H__ #define __ASM_POWERPC_REG_BOOKE_H__ -#ifdef CONFIG_BOOKE_WDT -extern u32 booke_wdt_enabled; -extern u32 booke_wdt_period; -#endif /* CONFIG_BOOKE_WDT */ - /* Machine State Register (MSR) Fields */ #define MSR_GS (1<<28) /* Guest state */ #define MSR_UCLE (1<<26) /* User-mode cache lock enable */ diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 5ec1b2354ca6..43eb74fcedde 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -330,14 +330,10 @@ void migrate_irqs(void) alloc_cpumask_var(&mask, GFP_KERNEL); - for_each_irq(irq) { + for_each_irq_desc(irq, desc) { struct irq_data *data; struct irq_chip *chip; - desc = irq_to_desc(irq); - if (!desc) - continue; - data = irq_desc_get_irq_data(desc); if (irqd_is_per_cpu(data)) continue; diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index c957b1202bdc..5df777794403 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -23,14 +23,11 @@ void machine_kexec_mask_interrupts(void) { unsigned int i; + struct irq_desc *desc; - for_each_irq(i) { - struct irq_desc *desc = irq_to_desc(i); + for_each_irq_desc(i, desc) { struct irq_chip *chip; - if (!desc) - continue; - chip = irq_desc_get_chip(desc); if (!chip) continue; diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 9825f29d1faf..ec8a53fa9e8f 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -150,6 +150,9 @@ notrace void __init machine_init(u64 dt_ptr) } #ifdef CONFIG_BOOKE_WDT +extern u32 booke_wdt_enabled; +extern u32 booke_wdt_period; + /* Checks wdt=x and wdt_period=xx command-line option */ notrace int __init early_parse_wdt(char *p) { diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index af1ab5e9a691..5c3cf2d04e41 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -48,7 +48,13 @@ /* * Assembly helpers from arch/powerpc/net/bpf_jit.S: */ -extern u8 sk_load_word[], sk_load_half[], sk_load_byte[], sk_load_byte_msh[]; +#define DECLARE_LOAD_FUNC(func) \ + extern u8 func[], func##_negative_offset[], func##_positive_offset[] + +DECLARE_LOAD_FUNC(sk_load_word); +DECLARE_LOAD_FUNC(sk_load_half); +DECLARE_LOAD_FUNC(sk_load_byte); +DECLARE_LOAD_FUNC(sk_load_byte_msh); #define FUNCTION_DESCR_SIZE 24 diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S index ff4506e85cce..55ba3855a97f 100644 --- a/arch/powerpc/net/bpf_jit_64.S +++ b/arch/powerpc/net/bpf_jit_64.S @@ -31,14 +31,13 @@ * then branch directly to slow_path_XXX if required. (In fact, could * load a spare GPR with the address of slow_path_generic and pass size * as an argument, making the call site a mtlr, li and bllr.) - * - * Technically, the "is addr < 0" check is unnecessary & slowing down - * the ABS path, as it's statically checked on generation. */ .globl sk_load_word sk_load_word: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_word_neg + .globl sk_load_word_positive_offset +sk_load_word_positive_offset: /* Are we accessing past headlen? */ subi r_scratch1, r_HL, 4 cmpd r_scratch1, r_addr @@ -51,7 +50,9 @@ sk_load_word: .globl sk_load_half sk_load_half: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_half_neg + .globl sk_load_half_positive_offset +sk_load_half_positive_offset: subi r_scratch1, r_HL, 2 cmpd r_scratch1, r_addr blt bpf_slow_path_half @@ -61,7 +62,9 @@ sk_load_half: .globl sk_load_byte sk_load_byte: cmpdi r_addr, 0 - blt bpf_error + blt bpf_slow_path_byte_neg + .globl sk_load_byte_positive_offset +sk_load_byte_positive_offset: cmpd r_HL, r_addr ble bpf_slow_path_byte lbzx r_A, r_D, r_addr @@ -69,22 +72,20 @@ sk_load_byte: /* * BPF_S_LDX_B_MSH: ldxb 4*([offset]&0xf) - * r_addr is the offset value, already known positive + * r_addr is the offset value */ .globl sk_load_byte_msh sk_load_byte_msh: + cmpdi r_addr, 0 + blt bpf_slow_path_byte_msh_neg + .globl sk_load_byte_msh_positive_offset +sk_load_byte_msh_positive_offset: cmpd r_HL, r_addr ble bpf_slow_path_byte_msh lbzx r_X, r_D, r_addr rlwinm r_X, r_X, 2, 32-4-2, 31-2 blr -bpf_error: - /* Entered with cr0 = lt */ - li r3, 0 - /* Generated code will 'blt epilogue', returning 0. */ - blr - /* Call out to skb_copy_bits: * We'll need to back up our volatile regs first; we have * local variable space at r1+(BPF_PPC_STACK_BASIC). @@ -136,3 +137,84 @@ bpf_slow_path_byte_msh: lbz r_X, BPF_PPC_STACK_BASIC+(2*8)(r1) rlwinm r_X, r_X, 2, 32-4-2, 31-2 blr + +/* Call out to bpf_internal_load_pointer_neg_helper: + * We'll need to back up our volatile regs first; we have + * local variable space at r1+(BPF_PPC_STACK_BASIC). + * Allocate a new stack frame here to remain ABI-compliant in + * stashing LR. + */ +#define sk_negative_common(SIZE) \ + mflr r0; \ + std r0, 16(r1); \ + /* R3 goes in parameter space of caller's frame */ \ + std r_skb, (BPF_PPC_STACKFRAME+48)(r1); \ + std r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1); \ + std r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1); \ + stdu r1, -BPF_PPC_SLOWPATH_FRAME(r1); \ + /* R3 = r_skb, as passed */ \ + mr r4, r_addr; \ + li r5, SIZE; \ + bl bpf_internal_load_pointer_neg_helper; \ + /* R3 != 0 on success */ \ + addi r1, r1, BPF_PPC_SLOWPATH_FRAME; \ + ld r0, 16(r1); \ + ld r_A, (BPF_PPC_STACK_BASIC+(0*8))(r1); \ + ld r_X, (BPF_PPC_STACK_BASIC+(1*8))(r1); \ + mtlr r0; \ + cmpldi r3, 0; \ + beq bpf_error_slow; /* cr0 = EQ */ \ + mr r_addr, r3; \ + ld r_skb, (BPF_PPC_STACKFRAME+48)(r1); \ + /* Great success! */ + +bpf_slow_path_word_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_word_negative_offset +sk_load_word_negative_offset: + sk_negative_common(4) + lwz r_A, 0(r_addr) + blr + +bpf_slow_path_half_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_half_negative_offset +sk_load_half_negative_offset: + sk_negative_common(2) + lhz r_A, 0(r_addr) + blr + +bpf_slow_path_byte_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_byte_negative_offset +sk_load_byte_negative_offset: + sk_negative_common(1) + lbz r_A, 0(r_addr) + blr + +bpf_slow_path_byte_msh_neg: + lis r_scratch1,-32 /* SKF_LL_OFF */ + cmpd r_addr, r_scratch1 /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + .globl sk_load_byte_msh_negative_offset +sk_load_byte_msh_negative_offset: + sk_negative_common(1) + lbz r_X, 0(r_addr) + rlwinm r_X, r_X, 2, 32-4-2, 31-2 + blr + +bpf_error_slow: + /* fabricate a cr0 = lt */ + li r_scratch1, -1 + cmpdi r_scratch1, 0 +bpf_error: + /* Entered with cr0 = lt */ + li r3, 0 + /* Generated code will 'blt epilogue', returning 0. */ + blr diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index 73619d3aeb6c..2dc8b1484845 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -127,6 +127,9 @@ static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx) PPC_BLR(); } +#define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) + /* Assemble the body code between the prologue & epilogue. */ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, struct codegen_context *ctx, @@ -391,21 +394,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, /*** Absolute loads from packet header/data ***/ case BPF_S_LD_W_ABS: - func = sk_load_word; + func = CHOOSE_LOAD_FUNC(K, sk_load_word); goto common_load; case BPF_S_LD_H_ABS: - func = sk_load_half; + func = CHOOSE_LOAD_FUNC(K, sk_load_half); goto common_load; case BPF_S_LD_B_ABS: - func = sk_load_byte; + func = CHOOSE_LOAD_FUNC(K, sk_load_byte); common_load: - /* - * Load from [K]. Reference with the (negative) - * SKF_NET_OFF/SKF_LL_OFF offsets is unsupported. - */ + /* Load from [K]. */ ctx->seen |= SEEN_DATAREF; - if ((int)K < 0) - return -ENOTSUPP; PPC_LI64(r_scratch1, func); PPC_MTLR(r_scratch1); PPC_LI32(r_addr, K); @@ -429,7 +427,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, common_load_ind: /* * Load from [X + K]. Negative offsets are tested for - * in the helper functions, and result in a 'ret 0'. + * in the helper functions. */ ctx->seen |= SEEN_DATAREF | SEEN_XREG; PPC_LI64(r_scratch1, func); @@ -443,13 +441,7 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, break; case BPF_S_LDX_B_MSH: - /* - * x86 version drops packet (RET 0) when K<0, whereas - * interpreter does allow K<0 (__load_pointer, special - * ancillary data). common_load returns ENOTSUPP if K<0, - * so we fall back to interpreter & filter works. - */ - func = sk_load_byte_msh; + func = CHOOSE_LOAD_FUNC(K, sk_load_byte_msh); goto common_load; break; diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c index 9fef5302adc1..67dac22b4363 100644 --- a/arch/powerpc/platforms/85xx/common.c +++ b/arch/powerpc/platforms/85xx/common.c @@ -21,6 +21,12 @@ static struct of_device_id __initdata mpc85xx_common_ids[] = { { .compatible = "fsl,qe", }, { .compatible = "fsl,cpm2", }, { .compatible = "fsl,srio", }, + /* So that the DMA channel nodes can be probed individually: */ + { .compatible = "fsl,eloplus-dma", }, + /* For the PMC driver */ + { .compatible = "fsl,mpc8548-guts", }, + /* Probably unnecessary? */ + { .compatible = "gpio-leds", }, {}, }; diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 9a6f04406e0d..d208ebccb91c 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -399,12 +399,6 @@ static int __init board_fixups(void) machine_arch_initcall(mpc8568_mds, board_fixups); machine_arch_initcall(mpc8569_mds, board_fixups); -static struct of_device_id mpc85xx_ids[] = { - { .compatible = "fsl,mpc8548-guts", }, - { .compatible = "gpio-leds", }, - {}, -}; - static int __init mpc85xx_publish_devices(void) { if (machine_is(mpc8568_mds)) @@ -412,10 +406,7 @@ static int __init mpc85xx_publish_devices(void) if (machine_is(mpc8569_mds)) simple_gpiochip_init("fsl,mpc8569mds-bcsr-gpio"); - mpc85xx_common_publish_devices(); - of_platform_bus_probe(NULL, mpc85xx_ids, NULL); - - return 0; + return mpc85xx_common_publish_devices(); } machine_device_initcall(mpc8568_mds, mpc85xx_publish_devices); diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index e74b7cde9aee..f700c81a1321 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -460,18 +460,7 @@ static void __init p1022_ds_setup_arch(void) pr_info("Freescale P1022 DS reference board\n"); } -static struct of_device_id __initdata p1022_ds_ids[] = { - /* So that the DMA channel nodes can be probed individually: */ - { .compatible = "fsl,eloplus-dma", }, - {}, -}; - -static int __init p1022_ds_publish_devices(void) -{ - mpc85xx_common_publish_devices(); - return of_platform_bus_probe(NULL, p1022_ds_ids, NULL); -} -machine_device_initcall(p1022_ds, p1022_ds_publish_devices); +machine_device_initcall(p1022_ds, mpc85xx_common_publish_devices); machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index d09f3e8e6867..85825b5401e5 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -114,7 +114,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) pr_devel("axon_msi: woff %x roff %x msi %x\n", write_offset, msic->read_offset, msi); - if (msi < NR_IRQS && irq_get_chip_data(msi) == msic) { + if (msi < nr_irqs && irq_get_chip_data(msi) == msic) { generic_handle_irq(msi); msic->fifo_virt[idx] = cpu_to_le32(0xffffffff); } else { @@ -276,9 +276,6 @@ static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) if (rc) return rc; - /* We rely on being able to stash a virq in a u16 */ - BUILD_BUG_ON(NR_IRQS > 65536); - list_for_each_entry(entry, &dev->msi_list, list) { virq = irq_create_direct_mapping(msic->irq_domain); if (virq == NO_IRQ) { @@ -392,7 +389,8 @@ static int axon_msi_probe(struct platform_device *device) } memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES); - msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic); + /* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */ + msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic); if (!msic->irq_domain) { printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n", dn->full_name); diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c index f9a48af335cb..8c6dc42ecf65 100644 --- a/arch/powerpc/platforms/cell/beat_interrupt.c +++ b/arch/powerpc/platforms/cell/beat_interrupt.c @@ -248,6 +248,6 @@ void beatic_deinit_IRQ(void) { int i; - for (i = 1; i < NR_IRQS; i++) + for (i = 1; i < nr_irqs; i++) beat_destruct_irq_plug(i); } diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 996c5ff7824b..03685a329d7d 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -366,11 +366,20 @@ static void kw_i2c_timeout(unsigned long data) unsigned long flags; spin_lock_irqsave(&host->lock, flags); + + /* + * If the timer is pending, that means we raced with the + * irq, in which case we just return + */ + if (timer_pending(&host->timeout_timer)) + goto skip; + kw_i2c_handle_interrupt(host, kw_read_reg(reg_isr)); if (host->state != state_idle) { host->timeout_timer.expires = jiffies + KW_POLL_TIMEOUT; add_timer(&host->timeout_timer); } + skip: spin_unlock_irqrestore(&host->lock, flags); } diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 66ad93de1d55..c4e630576ff2 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -57,9 +57,9 @@ static int max_real_irqs; static DEFINE_RAW_SPINLOCK(pmac_pic_lock); -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_lost_interrupts[NR_MASK_WORDS]; -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +/* The max irq number this driver deals with is 128; see max_irqs */ +static DECLARE_BITMAP(ppc_lost_interrupts, 128); +static DECLARE_BITMAP(ppc_cached_irq_mask, 128); static int pmac_irq_cascade = -1; static struct irq_domain *pmac_pic_host; diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index aadbe4f6d537..178a5f300bc9 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -30,9 +30,9 @@ config PPC_SPLPAR two or more partitions. config EEH - bool "PCI Extended Error Handling (EEH)" if EXPERT + bool depends on PPC_PSERIES && PCI - default y if !EXPERT + default y config PSERIES_MSI bool diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 309d38ef7322..a75e37dc41aa 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -1076,7 +1076,7 @@ static void eeh_add_device_late(struct pci_dev *dev) pr_debug("EEH: Adding device %s\n", pci_name(dev)); dn = pci_device_to_OF_node(dev); - edev = pci_dev_to_eeh_dev(dev); + edev = of_node_to_eeh_dev(dn); if (edev->pdev == dev) { pr_debug("EEH: Already referenced !\n"); return; diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c index d3be961e2ae7..10386b676d87 100644 --- a/arch/powerpc/sysdev/cpm2_pic.c +++ b/arch/powerpc/sysdev/cpm2_pic.c @@ -51,8 +51,7 @@ static intctl_cpm2_t __iomem *cpm2_intctl; static struct irq_domain *cpm2_pic_host; -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +static unsigned long ppc_cached_irq_mask[2]; /* 2 32-bit registers */ static const u_char irq_to_siureg[] = { 1, 1, 1, 1, 1, 1, 1, 1, diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c index d5f5416be310..b724622c3a0b 100644 --- a/arch/powerpc/sysdev/mpc8xx_pic.c +++ b/arch/powerpc/sysdev/mpc8xx_pic.c @@ -18,69 +18,45 @@ extern int cpm_get_irq(struct pt_regs *regs); static struct irq_domain *mpc8xx_pic_host; -#define NR_MASK_WORDS ((NR_IRQS + 31) / 32) -static unsigned long ppc_cached_irq_mask[NR_MASK_WORDS]; +static unsigned long mpc8xx_cached_irq_mask; static sysconf8xx_t __iomem *siu_reg; -int cpm_get_irq(struct pt_regs *regs); +static inline unsigned long mpc8xx_irqd_to_bit(struct irq_data *d) +{ + return 0x80000000 >> irqd_to_hwirq(d); +} static void mpc8xx_unmask_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] |= (1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static void mpc8xx_mask_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] &= ~(1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask &= ~mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static void mpc8xx_ack(struct irq_data *d) { - int bit; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - out_be32(&siu_reg->sc_sipend, 1 << (31-bit)); + out_be32(&siu_reg->sc_sipend, mpc8xx_irqd_to_bit(d)); } static void mpc8xx_end_irq(struct irq_data *d) { - int bit, word; - unsigned int irq_nr = (unsigned int)irqd_to_hwirq(d); - - bit = irq_nr & 0x1f; - word = irq_nr >> 5; - - ppc_cached_irq_mask[word] |= (1 << (31-bit)); - out_be32(&siu_reg->sc_simask, ppc_cached_irq_mask[word]); + mpc8xx_cached_irq_mask |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_simask, mpc8xx_cached_irq_mask); } static int mpc8xx_set_irq_type(struct irq_data *d, unsigned int flow_type) { - if (flow_type & IRQ_TYPE_EDGE_FALLING) { - irq_hw_number_t hw = (unsigned int)irqd_to_hwirq(d); + /* only external IRQ senses are programmable */ + if ((flow_type & IRQ_TYPE_EDGE_FALLING) && !(irqd_to_hwirq(d) & 1)) { unsigned int siel = in_be32(&siu_reg->sc_siel); - - /* only external IRQ senses are programmable */ - if ((hw & 1) == 0) { - siel |= (0x80000000 >> hw); - out_be32(&siu_reg->sc_siel, siel); - __irq_set_handler_locked(d->irq, handle_edge_irq); - } + siel |= mpc8xx_irqd_to_bit(d); + out_be32(&siu_reg->sc_siel, siel); + __irq_set_handler_locked(d->irq, handle_edge_irq); } return 0; } @@ -132,6 +108,9 @@ static int mpc8xx_pic_host_xlate(struct irq_domain *h, struct device_node *ct, IRQ_TYPE_EDGE_FALLING, }; + if (intspec[0] > 0x1f) + return 0; + *out_hwirq = intspec[0]; if (intsize > 1 && intspec[1] < 4) *out_flags = map_pic_senses[intspec[1]]; diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 9ac71ebd2c40..395af1347749 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -604,18 +604,14 @@ static struct mpic *mpic_find(unsigned int irq) } /* Determine if the linux irq is an IPI */ -static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int irq) +static unsigned int mpic_is_ipi(struct mpic *mpic, unsigned int src) { - unsigned int src = virq_to_hw(irq); - return (src >= mpic->ipi_vecs[0] && src <= mpic->ipi_vecs[3]); } /* Determine if the linux irq is a timer */ -static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int irq) +static unsigned int mpic_is_tm(struct mpic *mpic, unsigned int src) { - unsigned int src = virq_to_hw(irq); - return (src >= mpic->timer_vecs[0] && src <= mpic->timer_vecs[7]); } @@ -876,21 +872,45 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type) if (src >= mpic->num_sources) return -EINVAL; + vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); + + /* We don't support "none" type */ if (flow_type == IRQ_TYPE_NONE) - if (mpic->senses && src < mpic->senses_count) - flow_type = mpic->senses[src]; - if (flow_type == IRQ_TYPE_NONE) - flow_type = IRQ_TYPE_LEVEL_LOW; + flow_type = IRQ_TYPE_DEFAULT; + + /* Default: read HW settings */ + if (flow_type == IRQ_TYPE_DEFAULT) { + switch(vold & (MPIC_INFO(VECPRI_POLARITY_MASK) | + MPIC_INFO(VECPRI_SENSE_MASK))) { + case MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE): + flow_type = IRQ_TYPE_EDGE_RISING; + break; + case MPIC_INFO(VECPRI_SENSE_EDGE) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE): + flow_type = IRQ_TYPE_EDGE_FALLING; + break; + case MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_POSITIVE): + flow_type = IRQ_TYPE_LEVEL_HIGH; + break; + case MPIC_INFO(VECPRI_SENSE_LEVEL) | + MPIC_INFO(VECPRI_POLARITY_NEGATIVE): + flow_type = IRQ_TYPE_LEVEL_LOW; + break; + } + } + /* Apply to irq desc */ irqd_set_trigger_type(d, flow_type); + /* Apply to HW */ if (mpic_is_ht_interrupt(mpic, src)) vecpri = MPIC_VECPRI_POLARITY_POSITIVE | MPIC_VECPRI_SENSE_EDGE; else vecpri = mpic_type_to_vecpri(mpic, flow_type); - vold = mpic_irq_read(src, MPIC_INFO(IRQ_VECTOR_PRI)); vnew = vold & ~(MPIC_INFO(VECPRI_POLARITY_MASK) | MPIC_INFO(VECPRI_SENSE_MASK)); vnew |= vecpri; @@ -1026,7 +1046,7 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, irq_set_chip_and_handler(virq, chip, handle_fasteoi_irq); /* Set default irq type */ - irq_set_irq_type(virq, IRQ_TYPE_NONE); + irq_set_irq_type(virq, IRQ_TYPE_DEFAULT); /* If the MPIC was reset, then all vectors have already been * initialized. Otherwise, a per source lazy initialization @@ -1417,12 +1437,6 @@ void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num, mpic->num_sources = isu_first + mpic->isu_size; } -void __init mpic_set_default_senses(struct mpic *mpic, u8 *senses, int count) -{ - mpic->senses = senses; - mpic->senses_count = count; -} - void __init mpic_init(struct mpic *mpic) { int i, cpu; @@ -1555,12 +1569,12 @@ void mpic_irq_set_priority(unsigned int irq, unsigned int pri) return; raw_spin_lock_irqsave(&mpic_lock, flags); - if (mpic_is_ipi(mpic, irq)) { + if (mpic_is_ipi(mpic, src)) { reg = mpic_ipi_read(src - mpic->ipi_vecs[0]) & ~MPIC_VECPRI_PRIORITY_MASK; mpic_ipi_write(src - mpic->ipi_vecs[0], reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT)); - } else if (mpic_is_tm(mpic, irq)) { + } else if (mpic_is_tm(mpic, src)) { reg = mpic_tm_read(src - mpic->timer_vecs[0]) & ~MPIC_VECPRI_PRIORITY_MASK; mpic_tm_write(src - mpic->timer_vecs[0], diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c index 6e7fa386e76a..483d8fa72e8b 100644 --- a/arch/powerpc/sysdev/mpic_msgr.c +++ b/arch/powerpc/sysdev/mpic_msgr.c @@ -27,6 +27,7 @@ static struct mpic_msgr **mpic_msgrs; static unsigned int mpic_msgr_count; +static DEFINE_RAW_SPINLOCK(msgrs_lock); static inline void _mpic_msgr_mer_write(struct mpic_msgr *msgr, u32 value) { @@ -56,12 +57,11 @@ struct mpic_msgr *mpic_msgr_get(unsigned int reg_num) if (reg_num >= mpic_msgr_count) return ERR_PTR(-ENODEV); - raw_spin_lock_irqsave(&msgr->lock, flags); - if (mpic_msgrs[reg_num]->in_use == MSGR_FREE) { - msgr = mpic_msgrs[reg_num]; + raw_spin_lock_irqsave(&msgrs_lock, flags); + msgr = mpic_msgrs[reg_num]; + if (msgr->in_use == MSGR_FREE) msgr->in_use = MSGR_INUSE; - } - raw_spin_unlock_irqrestore(&msgr->lock, flags); + raw_spin_unlock_irqrestore(&msgrs_lock, flags); return msgr; } @@ -228,7 +228,7 @@ static __devinit int mpic_msgr_probe(struct platform_device *dev) reg_number = block_number * MPIC_MSGR_REGISTERS_PER_BLOCK + i; msgr->base = msgr_block_addr + i * MPIC_MSGR_STRIDE; - msgr->mer = msgr->base + MPIC_MSGR_MER_OFFSET; + msgr->mer = (u32 *)((u8 *)msgr->base + MPIC_MSGR_MER_OFFSET); msgr->in_use = MSGR_FREE; msgr->num = i; raw_spin_lock_init(&msgr->lock); diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c index 49a3ece1c6b3..702256a1ca11 100644 --- a/arch/powerpc/sysdev/scom.c +++ b/arch/powerpc/sysdev/scom.c @@ -22,6 +22,7 @@ #include <linux/debugfs.h> #include <linux/slab.h> #include <linux/export.h> +#include <asm/debug.h> #include <asm/prom.h> #include <asm/scom.h> diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index ea5e204e3450..cd1d18db92c6 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -188,6 +188,7 @@ void xics_migrate_irqs_away(void) { int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); unsigned int irq, virq; + struct irq_desc *desc; /* If we used to be the default server, move to the new "boot_cpuid" */ if (hw_cpu == xics_default_server) @@ -202,8 +203,7 @@ void xics_migrate_irqs_away(void) /* Allow IPIs again... */ icp_ops->set_priority(DEFAULT_PRIORITY); - for_each_irq(virq) { - struct irq_desc *desc; + for_each_irq_desc(virq, desc) { struct irq_chip *chip; long server; unsigned long flags; @@ -212,9 +212,8 @@ void xics_migrate_irqs_away(void) /* We can't set affinity on ISA interrupts */ if (virq < NUM_ISA_INTERRUPTS) continue; - desc = irq_to_desc(virq); /* We only need to migrate enabled IRQS */ - if (!desc || !desc->action) + if (!desc->action) continue; if (desc->irq_data.domain != xics_host) continue; diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h index 37f2f4a55231..f4c1c20bcdf6 100644 --- a/arch/sh/include/asm/atomic.h +++ b/arch/sh/include/asm/atomic.h @@ -11,7 +11,7 @@ #include <linux/types.h> #include <asm/cmpxchg.h> -#define ATOMIC_INIT(i) ( (atomic_t) { (i) } ) +#define ATOMIC_INIT(i) { (i) } #define atomic_read(v) (*(volatile int *)&(v)->counter) #define atomic_set(v,i) ((v)->counter = (i)) diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c index 324eef93c900..e99b104d967a 100644 --- a/arch/sh/mm/fault_32.c +++ b/arch/sh/mm/fault_32.c @@ -86,7 +86,7 @@ static noinline int vmalloc_fault(unsigned long address) pte_t *pte_k; /* Make sure we are in vmalloc/module/P3 area: */ - if (!(address >= VMALLOC_START && address < P3_ADDR_MAX)) + if (!(address >= P3SEG && address < P3_ADDR_MAX)) return -1; /* diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h index 5d5a635530bd..32e6cbe8dff3 100644 --- a/arch/tile/include/asm/pci.h +++ b/arch/tile/include/asm/pci.h @@ -47,8 +47,8 @@ struct pci_controller { */ #define PCI_DMA_BUS_IS_PHYS 1 -int __devinit tile_pci_init(void); -int __devinit pcibios_init(void); +int __init tile_pci_init(void); +int __init pcibios_init(void); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {} diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index a1bb59eecc18..b56d12bf5900 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -141,7 +141,7 @@ static int __devinit tile_init_irqs(int controller_id, * * Returns the number of controllers discovered. */ -int __devinit tile_pci_init(void) +int __init tile_pci_init(void) { int i; @@ -287,7 +287,7 @@ static void __devinit fixup_read_and_payload_sizes(void) * The controllers have been set up by the time we get here, by a call to * tile_pci_init. */ -int __devinit pcibios_init(void) +int __init pcibios_init(void) { int i; diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 1d14cc6b79ad..c9866b0b77d8 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -81,7 +81,7 @@ config X86 select CLKEVT_I8253 select ARCH_HAVE_NMI_SAFE_CMPXCHG select GENERIC_IOMAP - select DCACHE_WORD_ACCESS if !DEBUG_PAGEALLOC + select DCACHE_WORD_ACCESS config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S index a0559930a180..c85e3ac99bba 100644 --- a/arch/x86/boot/compressed/head_32.S +++ b/arch/x86/boot/compressed/head_32.S @@ -33,6 +33,9 @@ __HEAD ENTRY(startup_32) #ifdef CONFIG_EFI_STUB + jmp preferred_addr + + .balign 0x10 /* * We don't need the return address, so set up the stack so * efi_main() can find its arugments. @@ -41,12 +44,17 @@ ENTRY(startup_32) call efi_main cmpl $0, %eax - je preferred_addr movl %eax, %esi - call 1f + jne 2f 1: + /* EFI init failed, so hang. */ + hlt + jmp 1b +2: + call 3f +3: popl %eax - subl $1b, %eax + subl $3b, %eax subl BP_pref_address(%esi), %eax add BP_code32_start(%esi), %eax leal preferred_addr(%eax), %eax diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 558d76ce23bc..87e03a13d8e3 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -200,18 +200,28 @@ ENTRY(startup_64) * entire text+data+bss and hopefully all of memory. */ #ifdef CONFIG_EFI_STUB - pushq %rsi + /* + * The entry point for the PE/COFF executable is 0x210, so only + * legacy boot loaders will execute this jmp. + */ + jmp preferred_addr + + .org 0x210 mov %rcx, %rdi mov %rdx, %rsi call efi_main - popq %rsi - cmpq $0,%rax - je preferred_addr movq %rax,%rsi - call 1f + cmpq $0,%rax + jne 2f 1: + /* EFI init failed, so hang. */ + hlt + jmp 1b +2: + call 3f +3: popq %rax - subq $1b, %rax + subq $3b, %rax subq BP_pref_address(%rsi), %rax add BP_code32_start(%esi), %eax leaq preferred_addr(%rax), %rax diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c index d3c0b0277666..fb7117a4ade1 100644 --- a/arch/x86/boot/compressed/relocs.c +++ b/arch/x86/boot/compressed/relocs.c @@ -403,13 +403,11 @@ static void print_absolute_symbols(void) for (i = 0; i < ehdr.e_shnum; i++) { struct section *sec = &secs[i]; char *sym_strtab; - Elf32_Sym *sh_symtab; int j; if (sec->shdr.sh_type != SHT_SYMTAB) { continue; } - sh_symtab = sec->symtab; sym_strtab = sec->link->strtab; for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) { Elf32_Sym *sym; diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index ed549767a231..24443a332083 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -205,8 +205,13 @@ int main(int argc, char ** argv) put_unaligned_le32(file_sz, &buf[pe_header + 0x50]); #ifdef CONFIG_X86_32 - /* Address of entry point */ - put_unaligned_le32(i, &buf[pe_header + 0x28]); + /* + * Address of entry point. + * + * The EFI stub entry point is +16 bytes from the start of + * the .text section. + */ + put_unaligned_le32(i + 16, &buf[pe_header + 0x28]); /* .text size */ put_unaligned_le32(file_sz, &buf[pe_header + 0xb0]); @@ -217,9 +222,11 @@ int main(int argc, char ** argv) /* * Address of entry point. startup_32 is at the beginning and * the 64-bit entry point (startup_64) is always 512 bytes - * after. + * after. The EFI stub entry point is 16 bytes after that, as + * the first instruction allows legacy loaders to jump over + * the EFI stub initialisation */ - put_unaligned_le32(i + 512, &buf[pe_header + 0x28]); + put_unaligned_le32(i + 528, &buf[pe_header + 0x28]); /* .text size */ put_unaligned_le32(file_sz, &buf[pe_header + 0xc0]); diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 4824fb45560f..07b3a68d2d29 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -294,8 +294,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) /* OK, This is the point of no return */ set_personality(PER_LINUX); - set_thread_flag(TIF_IA32); - current->mm->context.ia32_compat = 1; + set_personality_ia32(false); setup_new_exec(bprm); diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h index 3427b7798dbc..7ef7c3020e5c 100644 --- a/arch/x86/include/asm/posix_types.h +++ b/arch/x86/include/asm/posix_types.h @@ -7,9 +7,9 @@ #else # ifdef __i386__ # include "posix_types_32.h" -# elif defined(__LP64__) -# include "posix_types_64.h" -# else +# elif defined(__ILP32__) # include "posix_types_x32.h" +# else +# include "posix_types_64.h" # endif #endif diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h index 4a085383af27..5ca71c065eef 100644 --- a/arch/x86/include/asm/sigcontext.h +++ b/arch/x86/include/asm/sigcontext.h @@ -257,7 +257,7 @@ struct sigcontext { __u64 oldmask; __u64 cr2; struct _fpstate __user *fpstate; /* zero when no FPU context */ -#ifndef __LP64__ +#ifdef __ILP32__ __u32 __fpstate_pad; #endif __u64 reserved1[8]; diff --git a/arch/x86/include/asm/siginfo.h b/arch/x86/include/asm/siginfo.h index fc1aa5535646..34c47b3341c0 100644 --- a/arch/x86/include/asm/siginfo.h +++ b/arch/x86/include/asm/siginfo.h @@ -2,7 +2,13 @@ #define _ASM_X86_SIGINFO_H #ifdef __x86_64__ -# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +# ifdef __ILP32__ /* x32 */ +typedef long long __kernel_si_clock_t __attribute__((aligned(4))); +# define __ARCH_SI_CLOCK_T __kernel_si_clock_t +# define __ARCH_SI_ATTRIBUTES __attribute__((aligned(8))) +# else /* x86-64 */ +# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int)) +# endif #endif #include <asm-generic/siginfo.h> diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index 37cdc9d99bb1..4437001d8e3d 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -63,10 +63,10 @@ #else # ifdef __i386__ # include <asm/unistd_32.h> -# elif defined(__LP64__) -# include <asm/unistd_64.h> -# else +# elif defined(__ILP32__) # include <asm/unistd_x32.h> +# else +# include <asm/unistd_64.h> # endif #endif diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h index 6fe6767b7124..e58f03b206c3 100644 --- a/arch/x86/include/asm/word-at-a-time.h +++ b/arch/x86/include/asm/word-at-a-time.h @@ -43,4 +43,37 @@ static inline unsigned long has_zero(unsigned long a) return ((a - REPEAT_BYTE(0x01)) & ~a) & REPEAT_BYTE(0x80); } +/* + * Load an unaligned word from kernel space. + * + * In the (very unlikely) case of the word being a page-crosser + * and the next page not being mapped, take the exception and + * return zeroes in the non-existing part. + */ +static inline unsigned long load_unaligned_zeropad(const void *addr) +{ + unsigned long ret, dummy; + + asm( + "1:\tmov %2,%0\n" + "2:\n" + ".section .fixup,\"ax\"\n" + "3:\t" + "lea %2,%1\n\t" + "and %3,%1\n\t" + "mov (%1),%0\n\t" + "leal %2,%%ecx\n\t" + "andl %4,%%ecx\n\t" + "shll $3,%%ecx\n\t" + "shr %%cl,%0\n\t" + "jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) + :"=&r" (ret),"=&c" (dummy) + :"m" (*(unsigned long *)addr), + "i" (-sizeof(unsigned long)), + "i" (sizeof(unsigned long)-1)); + return ret; +} + #endif /* _ASM_WORD_AT_A_TIME_H */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index baaca8defec8..764b66a4cf89 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -195,6 +195,5 @@ extern struct x86_msi_ops x86_msi; extern void x86_init_noop(void); extern void x86_init_uint_noop(unsigned int unused); -extern void x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node); #endif diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 103b6ab368d3..146a49c763a4 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -24,6 +24,10 @@ unsigned long acpi_realmode_flags; static char temp_stack[4096]; #endif +asmlinkage void acpi_enter_s3(void) +{ + acpi_enter_sleep_state(3, wake_sleep_flags); +} /** * acpi_suspend_lowlevel - save kernel state * diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index 416d4be13fef..d68677a2a010 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -3,12 +3,16 @@ */ #include <asm/trampoline.h> +#include <linux/linkage.h> extern unsigned long saved_video_mode; extern long saved_magic; extern int wakeup_pmode_return; +extern u8 wake_sleep_flags; +extern asmlinkage void acpi_enter_s3(void); + extern unsigned long acpi_copy_wakeup_routine(unsigned long); extern void wakeup_long64(void); diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S index 13ab720573e3..72610839f03b 100644 --- a/arch/x86/kernel/acpi/wakeup_32.S +++ b/arch/x86/kernel/acpi/wakeup_32.S @@ -74,9 +74,7 @@ restore_registers: ENTRY(do_suspend_lowlevel) call save_processor_state call save_registers - pushl $3 - call acpi_enter_sleep_state - addl $4, %esp + call acpi_enter_s3 # In case of S3 failure, we'll emerge here. Jump # to ret_point to recover diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S index 8ea5164cbd04..014d1d28c397 100644 --- a/arch/x86/kernel/acpi/wakeup_64.S +++ b/arch/x86/kernel/acpi/wakeup_64.S @@ -71,9 +71,7 @@ ENTRY(do_suspend_lowlevel) movq %rsi, saved_rsi addq $8, %rsp - movl $3, %edi - xorl %eax, %eax - call acpi_enter_sleep_state + call acpi_enter_s3 /* in case something went wrong, restore the machine status and go on */ jmp resume_point diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 11544d8f1e97..edc24480469f 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -1637,9 +1637,11 @@ static int __init apic_verify(void) mp_lapic_addr = APIC_DEFAULT_PHYS_BASE; /* The BIOS may have set up the APIC at some other address */ - rdmsr(MSR_IA32_APICBASE, l, h); - if (l & MSR_IA32_APICBASE_ENABLE) - mp_lapic_addr = l & MSR_IA32_APICBASE_BASE; + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + if (l & MSR_IA32_APICBASE_ENABLE) + mp_lapic_addr = l & MSR_IA32_APICBASE_BASE; + } pr_info("Found and enabled local APIC!\n"); return 0; @@ -1657,13 +1659,15 @@ int __init apic_force_enable(unsigned long addr) * MSR. This can only be done in software for Intel P6 or later * and AMD K7 (Model > 1) or later. */ - rdmsr(MSR_IA32_APICBASE, l, h); - if (!(l & MSR_IA32_APICBASE_ENABLE)) { - pr_info("Local APIC disabled by BIOS -- reenabling.\n"); - l &= ~MSR_IA32_APICBASE_BASE; - l |= MSR_IA32_APICBASE_ENABLE | addr; - wrmsr(MSR_IA32_APICBASE, l, h); - enabled_via_apicbase = 1; + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + if (!(l & MSR_IA32_APICBASE_ENABLE)) { + pr_info("Local APIC disabled by BIOS -- reenabling.\n"); + l &= ~MSR_IA32_APICBASE_BASE; + l |= MSR_IA32_APICBASE_ENABLE | addr; + wrmsr(MSR_IA32_APICBASE, l, h); + enabled_via_apicbase = 1; + } } return apic_verify(); } @@ -2209,10 +2213,12 @@ static void lapic_resume(void) * FIXME! This will be wrong if we ever support suspend on * SMP! We'll need to do this as part of the CPU restore! */ - rdmsr(MSR_IA32_APICBASE, l, h); - l &= ~MSR_IA32_APICBASE_BASE; - l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr; - wrmsr(MSR_IA32_APICBASE, l, h); + if (boot_cpu_data.x86 >= 6) { + rdmsr(MSR_IA32_APICBASE, l, h); + l &= ~MSR_IA32_APICBASE_BASE; + l |= MSR_IA32_APICBASE_ENABLE | mp_lapic_addr; + wrmsr(MSR_IA32_APICBASE, l, h); + } } maxlvt = lapic_get_maxlvt(); diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c index 899803e03214..23e75422e013 100644 --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -207,8 +207,11 @@ static void __init map_csrs(void) static void fixup_cpu_id(struct cpuinfo_x86 *c, int node) { - c->phys_proc_id = node; - per_cpu(cpu_llc_id, smp_processor_id()) = node; + + if (c->phys_proc_id != node) { + c->phys_proc_id = node; + per_cpu(cpu_llc_id, smp_processor_id()) = node; + } } static int __init numachip_system_init(void) diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c index 8a778db45e3a..991e315f4227 100644 --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (x2apic_phys) return x2apic_enabled(); + else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) && + (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) && + x2apic_enabled()) { + printk(KERN_DEBUG "System requires x2apic physical mode\n"); + return 1; + } else return 0; } diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 0a44b90602b0..146bb6218eec 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -26,7 +26,8 @@ * contact AMD for precise details and a CPU swap. * * See http://www.multimania.com/poulot/k6bug.html - * http://www.amd.com/K6/k6docs/revgd.html + * and section 2.6.2 of "AMD-K6 Processor Revision Guide - Model 6" + * (Publication # 21266 Issue Date: August 1998) * * The following test is erm.. interesting. AMD neglected to up * the chip setting when fixing the bug but they also tweaked some @@ -94,7 +95,6 @@ static void __cpuinit init_amd_k6(struct cpuinfo_x86 *c) "system stability may be impaired when more than 32 MB are used.\n"); else printk(KERN_CONT "probably OK (after B9730xxxx).\n"); - printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n"); } /* K6 with old style WHCR */ @@ -353,10 +353,11 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c) node = per_cpu(cpu_llc_id, cpu); /* - * If core numbers are inconsistent, it's likely a multi-fabric platform, - * so invoke platform-specific handler + * On multi-fabric platform (e.g. Numascale NumaChip) a + * platform-specific handler needs to be called to fixup some + * IDs of the CPU. */ - if (c->phys_proc_id != node) + if (x86_cpuinit.fixup_cpu_id) x86_cpuinit.fixup_cpu_id(c, node); if (!node_online(node)) { @@ -579,6 +580,24 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) } } + /* re-enable TopologyExtensions if switched off by BIOS */ + if ((c->x86 == 0x15) && + (c->x86_model >= 0x10) && (c->x86_model <= 0x1f) && + !cpu_has(c, X86_FEATURE_TOPOEXT)) { + u64 val; + + if (!rdmsrl_amd_safe(0xc0011005, &val)) { + val |= 1ULL << 54; + wrmsrl_amd_safe(0xc0011005, val); + rdmsrl(0xc0011005, val); + if (val & (1ULL << 54)) { + set_cpu_cap(c, X86_FEATURE_TOPOEXT); + printk(KERN_INFO FW_INFO "CPU: Re-enabling " + "disabled Topology Extensions Support\n"); + } + } + } + cpu_detect_cache_sizes(c); /* Multi core CPU? */ diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 67e258362a3d..cf79302198a6 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1163,15 +1163,6 @@ static void dbg_restore_debug_regs(void) #endif /* ! CONFIG_KGDB */ /* - * Prints an error where the NUMA and configured core-number mismatch and the - * platform didn't override this to fix it up - */ -void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node) -{ - pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id); -} - -/* * cpu_init() initializes state that is per-CPU. Some data is already * initialized (naturally) in the bootstrap process, such as the GDT * and IDT. We reload them nevertheless, this function acts as a diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 73d08ed98a64..b8f3653dddbc 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -433,14 +433,14 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot, /* check if @slot is already used or the index is already disabled */ ret = amd_get_l3_disable_slot(nb, slot); if (ret >= 0) - return -EINVAL; + return -EEXIST; if (index > nb->l3_cache.indices) return -EINVAL; /* check whether the other slot has disabled the same index already */ if (index == amd_get_l3_disable_slot(nb, !slot)) - return -EINVAL; + return -EEXIST; amd_l3_disable_index(nb, cpu, slot, index); @@ -468,8 +468,8 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf, err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val); if (err) { if (err == -EEXIST) - printk(KERN_WARNING "L3 disable slot %d in use!\n", - slot); + pr_warning("L3 slot %d in use/index already disabled!\n", + slot); return err; } return count; diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index 7734bcbb5a3a..2d6e6498c176 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -235,6 +235,7 @@ int init_fpu(struct task_struct *tsk) if (tsk_used_math(tsk)) { if (HAVE_HWFP && tsk == current) unlazy_fpu(tsk); + tsk->thread.fpu.last_cpu = ~0; return 0; } diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 73465aab28f8..8a2ce8fd41c0 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -82,11 +82,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig) { struct cpuinfo_x86 *c = &cpu_data(cpu); - if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { - pr_warning("CPU%d: family %d not supported\n", cpu, c->x86); - return -1; - } - csig->rev = c->microcode; pr_info("CPU%d: patch_level=0x%08x\n", cpu, csig->rev); @@ -380,6 +375,13 @@ static struct microcode_ops microcode_amd_ops = { struct microcode_ops * __init init_amd_microcode(void) { + struct cpuinfo_x86 *c = &cpu_data(0); + + if (c->x86_vendor != X86_VENDOR_AMD || c->x86 < 0x10) { + pr_warning("AMD CPU family 0x%x not supported\n", c->x86); + return NULL; + } + patch = (void *)get_zeroed_page(GFP_KERNEL); if (!patch) return NULL; diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c index 87a0f8688301..c9bda6d6035c 100644 --- a/arch/x86/kernel/microcode_core.c +++ b/arch/x86/kernel/microcode_core.c @@ -419,10 +419,8 @@ static int mc_device_add(struct device *dev, struct subsys_interface *sif) if (err) return err; - if (microcode_init_cpu(cpu) == UCODE_ERROR) { - sysfs_remove_group(&dev->kobj, &mc_attr_group); + if (microcode_init_cpu(cpu) == UCODE_ERROR) return -EINVAL; - } return err; } @@ -528,11 +526,11 @@ static int __init microcode_init(void) microcode_ops = init_intel_microcode(); else if (c->x86_vendor == X86_VENDOR_AMD) microcode_ops = init_amd_microcode(); - - if (!microcode_ops) { + else pr_err("no support for this CPU vendor\n"); + + if (!microcode_ops) return -ENODEV; - } microcode_pdev = platform_device_register_simple("microcode", -1, NULL, 0); diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index e9f265fd79ae..9cf71d0b2d37 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -93,7 +93,6 @@ struct x86_init_ops x86_init __initdata = { struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = { .early_percpu_clock_init = x86_init_noop, .setup_percpu_clockev = setup_secondary_APIC_clock, - .fixup_cpu_id = x86_default_fixup_cpu_id, }; static void default_nmi_init(void) { }; diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c index 66d377e334f7..646e3b5b4bb6 100644 --- a/arch/x86/platform/geode/net5501.c +++ b/arch/x86/platform/geode/net5501.c @@ -63,7 +63,7 @@ static struct gpio_led net5501_leds[] = { .name = "net5501:1", .gpio = 6, .default_trigger = "default-on", - .active_low = 1, + .active_low = 0, }, }; diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index e0a37233c0af..e31bcd8f2eee 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -805,7 +805,7 @@ void intel_scu_devices_create(void) } else i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1); } - intel_scu_notifier_post(SCU_AVAILABLE, 0L); + intel_scu_notifier_post(SCU_AVAILABLE, NULL); } EXPORT_SYMBOL_GPL(intel_scu_devices_create); @@ -814,7 +814,7 @@ void intel_scu_devices_destroy(void) { int i; - intel_scu_notifier_post(SCU_DOWN, 0L); + intel_scu_notifier_post(SCU_DOWN, NULL); for (i = 0; i < ipc_next_dev; i++) platform_device_del(ipc_devs[i]); diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 4f51bebac02c..a8f8844b8d32 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -261,7 +261,8 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, static bool __init xen_check_mwait(void) { -#ifdef CONFIG_ACPI +#if defined(CONFIG_ACPI) && !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) && \ + !defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) struct xen_platform_op op = { .cmd = XENPF_set_processor_pminfo, .u.set_pminfo.id = -1, @@ -349,7 +350,6 @@ static void __init xen_init_cpuid_mask(void) /* Xen will set CR4.OSXSAVE if supported and not disabled by force */ if ((cx & xsave_mask) != xsave_mask) cpuid_leaf1_ecx_mask &= ~xsave_mask; /* disable XSAVE & OSXSAVE */ - if (xen_check_mwait()) cpuid_leaf1_ecx_set_mask = (1 << (X86_FEATURE_MWAIT % 32)); } diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 5fac6919b957..0503c0c493a9 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -178,6 +178,7 @@ static void __init xen_fill_possible_map(void) static void __init xen_filter_cpu_maps(void) { int i, rc; + unsigned int subtract = 0; if (!xen_initial_domain()) return; @@ -192,8 +193,22 @@ static void __init xen_filter_cpu_maps(void) } else { set_cpu_possible(i, false); set_cpu_present(i, false); + subtract++; } } +#ifdef CONFIG_HOTPLUG_CPU + /* This is akin to using 'nr_cpus' on the Linux command line. + * Which is OK as when we use 'dom0_max_vcpus=X' we can only + * have up to X, while nr_cpu_ids is greater than X. This + * normally is not a problem, except when CPU hotplugging + * is involved and then there might be more than X CPUs + * in the guest - which will not work as there is no + * hypercall to expand the max number of VCPUs an already + * running guest has. So cap it up to X. */ + if (subtract) + nr_cpu_ids = nr_cpu_ids - subtract; +#endif + } static void __init xen_smp_prepare_boot_cpu(void) diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S index 79d7362ad6d1..3e45aa000718 100644 --- a/arch/x86/xen/xen-asm.S +++ b/arch/x86/xen/xen-asm.S @@ -96,7 +96,7 @@ ENTRY(xen_restore_fl_direct) /* check for unmasked and pending */ cmpw $0x0001, PER_CPU_VAR(xen_vcpu_info) + XEN_vcpu_info_pending - jz 1f + jnz 1f 2: call check_events 1: ENDPATCH(xen_restore_fl_direct) diff --git a/arch/xtensa/include/asm/hardirq.h b/arch/xtensa/include/asm/hardirq.h index 26664cef8f11..91695a135498 100644 --- a/arch/xtensa/include/asm/hardirq.h +++ b/arch/xtensa/include/asm/hardirq.h @@ -11,9 +11,6 @@ #ifndef _XTENSA_HARDIRQ_H #define _XTENSA_HARDIRQ_H -void ack_bad_irq(unsigned int irq); -#define ack_bad_irq ack_bad_irq - #include <asm-generic/hardirq.h> #endif /* _XTENSA_HARDIRQ_H */ diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h index d04cd3a625fa..4beb43c087d3 100644 --- a/arch/xtensa/include/asm/io.h +++ b/arch/xtensa/include/asm/io.h @@ -14,6 +14,7 @@ #ifdef __KERNEL__ #include <asm/byteorder.h> #include <asm/page.h> +#include <linux/bug.h> #include <linux/kernel.h> #include <linux/types.h> diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c index b69b000349fc..d78869a00b11 100644 --- a/arch/xtensa/kernel/signal.c +++ b/arch/xtensa/kernel/signal.c @@ -496,6 +496,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset) signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { + int ret; /* Are we from a system call? */ |