diff options
Diffstat (limited to 'arch')
40 files changed, 424 insertions, 120 deletions
diff --git a/arch/arm/common/uengine.c b/arch/arm/common/uengine.c index 95c8508c29b7..117cab30bd36 100644 --- a/arch/arm/common/uengine.c +++ b/arch/arm/common/uengine.c @@ -374,8 +374,8 @@ static int set_initial_registers(int uengine, struct ixp2000_uengine_code *c) u8 *ucode; int i; - gpr_a = kmalloc(128 * sizeof(u32), GFP_KERNEL); - gpr_b = kmalloc(128 * sizeof(u32), GFP_KERNEL); + gpr_a = kzalloc(128 * sizeof(u32), GFP_KERNEL); + gpr_b = kzalloc(128 * sizeof(u32), GFP_KERNEL); ucode = kmalloc(513 * 5, GFP_KERNEL); if (gpr_a == NULL || gpr_b == NULL || ucode == NULL) { kfree(ucode); @@ -388,8 +388,6 @@ static int set_initial_registers(int uengine, struct ixp2000_uengine_code *c) if (c->uengine_parameters & IXP2000_UENGINE_4_CONTEXTS) per_ctx_regs = 32; - memset(gpr_a, 0, sizeof(gpr_a)); - memset(gpr_b, 0, sizeof(gpr_b)); for (i = 0; i < 256; i++) { struct ixp2000_reg_value *r = c->initial_reg_values + i; u32 *bank; diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index d645897652c2..29dec080a604 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -339,16 +339,6 @@ __pabt_svc: str r1, [sp] @ save the "real" r0 copied @ from the exception stack -#if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG) -#ifndef CONFIG_MMU -#warning "NPTL on non MMU needs fixing" -#else - @ make sure our user space atomic helper is aborted - cmp r2, #TASK_SIZE - bichs r3, r3, #PSR_Z_BIT -#endif -#endif - @ @ We are now ready to fill in the remaining blanks on the stack: @ @@ -372,9 +362,25 @@ __pabt_svc: zero_fp .endm + .macro kuser_cmpxchg_check +#if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG) +#ifndef CONFIG_MMU +#warning "NPTL on non MMU needs fixing" +#else + @ Make sure our user space atomic helper is restarted + @ if it was interrupted in a critical region. Here we + @ perform a quick test inline since it should be false + @ 99.9999% of the time. The rest is done out of line. + cmp r2, #TASK_SIZE + blhs kuser_cmpxchg_fixup +#endif +#endif + .endm + .align 5 __dabt_usr: usr_entry + kuser_cmpxchg_check @ @ Call the processor-specific abort handler: @@ -404,6 +410,7 @@ __dabt_usr: .align 5 __irq_usr: usr_entry + kuser_cmpxchg_check #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_off @@ -446,9 +453,9 @@ __und_usr: @ @ r0 - instruction @ -1: ldrt r0, [r4] adr r9, ret_from_exception adr lr, __und_usr_unknown +1: ldrt r0, [r4] @ @ fallthrough to call_fpe @ @@ -669,7 +676,7 @@ __kuser_helper_start: * * Clobbered: * - * the Z flag might be lost + * none * * Definition and user space usage example: * @@ -730,9 +737,6 @@ __kuser_memory_barrier: @ 0xffff0fa0 * * - This routine already includes memory barriers as needed. * - * - A failure might be transient, i.e. it is possible, although unlikely, - * that "failure" be returned even if *ptr == oldval. - * * For example, a user space atomic_add implementation could look like this: * * #define atomic_add(ptr, val) \ @@ -769,46 +773,62 @@ __kuser_cmpxchg: @ 0xffff0fc0 #elif __LINUX_ARM_ARCH__ < 6 +#ifdef CONFIG_MMU + /* - * Theory of operation: - * - * We set the Z flag before loading oldval. If ever an exception - * occurs we can not be sure the loaded value will still be the same - * when the exception returns, therefore the user exception handler - * will clear the Z flag whenever the interrupted user code was - * actually from the kernel address space (see the usr_entry macro). - * - * The post-increment on the str is used to prevent a race with an - * exception happening just after the str instruction which would - * clear the Z flag although the exchange was done. + * The only thing that can break atomicity in this cmpxchg + * implementation is either an IRQ or a data abort exception + * causing another process/thread to be scheduled in the middle + * of the critical sequence. To prevent this, code is added to + * the IRQ and data abort exception handlers to set the pc back + * to the beginning of the critical section if it is found to be + * within that critical section (see kuser_cmpxchg_fixup). */ -#ifdef CONFIG_MMU - teq ip, ip @ set Z flag - ldr ip, [r2] @ load current val - add r3, r2, #1 @ prepare store ptr - teqeq ip, r0 @ compare with oldval if still allowed - streq r1, [r3, #-1]! @ store newval if still allowed - subs r0, r2, r3 @ if r2 == r3 the str occured +1: ldr r3, [r2] @ load current val + subs r3, r3, r0 @ compare with oldval +2: streq r1, [r2] @ store newval if eq + rsbs r0, r3, #0 @ set return val and C flag + usr_ret lr + + .text +kuser_cmpxchg_fixup: + @ Called from kuser_cmpxchg_check macro. + @ r2 = address of interrupted insn (must be preserved). + @ sp = saved regs. r7 and r8 are clobbered. + @ 1b = first critical insn, 2b = last critical insn. + @ If r2 >= 1b and r2 <= 2b then saved pc_usr is set to 1b. + mov r7, #0xffff0fff + sub r7, r7, #(0xffff0fff - (0xffff0fc0 + (1b - __kuser_cmpxchg))) + subs r8, r2, r7 + rsbcss r8, r8, #(2b - 1b) + strcs r7, [sp, #S_PC] + mov pc, lr + .previous + #else #warning "NPTL on non MMU needs fixing" mov r0, #-1 adds r0, r0, #0 -#endif usr_ret lr +#endif #else #ifdef CONFIG_SMP mcr p15, 0, r0, c7, c10, 5 @ dmb #endif - ldrex r3, [r2] +1: ldrex r3, [r2] subs r3, r3, r0 strexeq r3, r1, [r2] + teqeq r3, #1 + beq 1b rsbs r0, r3, #0 + /* beware -- each __kuser slot must be 8 instructions max */ #ifdef CONFIG_SMP - mcr p15, 0, r0, c7, c10, 5 @ dmb -#endif + b __kuser_memory_barrier +#else usr_ret lr +#endif #endif @@ -829,7 +849,7 @@ __kuser_cmpxchg: @ 0xffff0fc0 * * Clobbered: * - * the Z flag might be lost + * none * * Definition and user space usage example: * diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 4764bd9ccee8..c34db4e868fa 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -327,7 +327,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) if ((instr & hook->instr_mask) == hook->instr_val && (regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val) { if (hook->fn(regs, instr) == 0) { - spin_unlock_irq(&undef_lock); + spin_unlock_irqrestore(&undef_lock, flags); return; } } @@ -509,7 +509,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs) * existence. Don't ever use this from user code. */ case 0xfff0: - { + for (;;) { extern void do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs); unsigned long val; @@ -545,7 +545,6 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs) up_read(&mm->mmap_sem); /* simulate a write access fault */ do_DataAbort(addr, 15 + (1 << 11), regs); - return -1; } #endif diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 0417c165d50d..9296833f91cc 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -14,6 +14,7 @@ #include <asm/mach/map.h> #include <linux/platform_device.h> +#include <linux/i2c-gpio.h> #include <asm/arch/board.h> #include <asm/arch/gpio.h> @@ -435,7 +436,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA25, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA26, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91rm9200_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA25, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA25, 1); + + at91_set_GPIO_periph(AT91_PIN_PA26, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA26, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91rm9200_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -457,7 +491,7 @@ static struct platform_device at91rm9200_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA25, 0); /* TWD */ @@ -466,10 +500,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA26, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA26, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91rm9200_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c index ffd3154c1e54..3091bf47d8c9 100644 --- a/arch/arm/mach-at91/at91sam9260_devices.c +++ b/arch/arm/mach-at91/at91sam9260_devices.c @@ -13,6 +13,7 @@ #include <asm/mach/map.h> #include <linux/platform_device.h> +#include <linux/i2c-gpio.h> #include <asm/arch/board.h> #include <asm/arch/gpio.h> @@ -352,7 +353,41 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ + +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA23, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA24, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9260_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA23, 1); + + at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA24, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9260_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -374,7 +409,7 @@ static struct platform_device at91sam9260_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */ @@ -383,10 +418,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA24, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9260_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c index 3576595b4941..64979a9023c2 100644 --- a/arch/arm/mach-at91/at91sam9261_devices.c +++ b/arch/arm/mach-at91/at91sam9261_devices.c @@ -14,7 +14,9 @@ #include <asm/mach/map.h> #include <linux/platform_device.h> +#include <linux/i2c-gpio.h> +#include <linux/fb.h> #include <video/atmel_lcdc.h> #include <asm/arch/board.h> @@ -275,7 +277,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA7, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA8, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9261_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA7, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA7, 1); + + at91_set_GPIO_periph(AT91_PIN_PA8, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA8, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9261_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -297,7 +332,7 @@ static struct platform_device at91sam9261_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA7, 0); /* TWD */ @@ -306,10 +341,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA8, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA8, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9261_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c index f924bd5017de..ac329a98e959 100644 --- a/arch/arm/mach-at91/at91sam9263_devices.c +++ b/arch/arm/mach-at91/at91sam9263_devices.c @@ -13,7 +13,9 @@ #include <asm/mach/map.h> #include <linux/platform_device.h> +#include <linux/i2c-gpio.h> +#include <linux/fb.h> #include <video/atmel_lcdc.h> #include <asm/arch/board.h> @@ -421,7 +423,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PB4, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PB5, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9263_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PB4, 1); + + at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PB5, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9263_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -443,7 +478,7 @@ static struct platform_device at91sam9263_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PB4, 0); /* TWD */ @@ -452,10 +487,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PB5, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PB5, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9263_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c index cd7532bcd4e5..2bd60a3dc623 100644 --- a/arch/arm/mach-at91/at91sam9rl_devices.c +++ b/arch/arm/mach-at91/at91sam9rl_devices.c @@ -10,8 +10,9 @@ #include <asm/mach/map.h> #include <linux/platform_device.h> -#include <linux/fb.h> +#include <linux/i2c-gpio.h> +#include <linux/fb.h> #include <video/atmel_lcdc.h> #include <asm/arch/board.h> @@ -169,7 +170,40 @@ void __init at91_add_device_nand(struct at91_nand_data *data) {} * TWI (i2c) * -------------------------------------------------------------------- */ -#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) +/* + * Prefer the GPIO code since the TWI controller isn't robust + * (gets overruns and underruns under load) and can only issue + * repeated STARTs in one scenario (the driver doesn't yet handle them). + */ +#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) + +static struct i2c_gpio_platform_data pdata = { + .sda_pin = AT91_PIN_PA23, + .sda_is_open_drain = 1, + .scl_pin = AT91_PIN_PA24, + .scl_is_open_drain = 1, + .udelay = 2, /* ~100 kHz */ +}; + +static struct platform_device at91sam9rl_twi_device = { + .name = "i2c-gpio", + .id = -1, + .dev.platform_data = &pdata, +}; + +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) +{ + at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */ + at91_set_multi_drive(AT91_PIN_PA23, 1); + + at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */ + at91_set_multi_drive(AT91_PIN_PA24, 1); + + i2c_register_board_info(0, devices, nr_devices); + platform_device_register(&at91sam9rl_twi_device); +} + +#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) static struct resource twi_resources[] = { [0] = { @@ -191,7 +225,7 @@ static struct platform_device at91sam9rl_twi_device = { .num_resources = ARRAY_SIZE(twi_resources), }; -void __init at91_add_device_i2c(void) +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) { /* pins used for TWI interface */ at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */ @@ -200,10 +234,11 @@ void __init at91_add_device_i2c(void) at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */ at91_set_multi_drive(AT91_PIN_PA24, 1); + i2c_register_board_info(0, devices, nr_devices); platform_device_register(&at91sam9rl_twi_device); } #else -void __init at91_add_device_i2c(void) {} +void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} #endif diff --git a/arch/arm/mach-at91/board-carmeva.c b/arch/arm/mach-at91/board-carmeva.c index 76ec856cd4f9..0f0878294a67 100644 --- a/arch/arm/mach-at91/board-carmeva.c +++ b/arch/arm/mach-at91/board-carmeva.c @@ -128,7 +128,7 @@ static void __init carmeva_board_init(void) /* USB Device */ at91_add_device_udc(&carmeva_udc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* SPI */ at91_add_device_spi(carmeva_spi_devices, ARRAY_SIZE(carmeva_spi_devices)); /* Compact Flash */ diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c index dde089922e3b..d0aa20c9383e 100644 --- a/arch/arm/mach-at91/board-csb337.c +++ b/arch/arm/mach-at91/board-csb337.c @@ -23,7 +23,6 @@ #include <linux/mm.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/i2c.h> #include <linux/spi/spi.h> #include <linux/mtd/physmap.h> @@ -85,12 +84,12 @@ static struct at91_udc_data __initdata csb337_udc_data = { }; static struct i2c_board_info __initdata csb337_i2c_devices[] = { - { I2C_BOARD_INFO("rtc-ds1307", 0x68), - .type = "ds1307", + { + I2C_BOARD_INFO("rtc-ds1307", 0x68), + .type = "ds1307", }, }; - static struct at91_cf_data __initdata csb337_cf_data = { /* * connector P4 on the CSB 337 mates to @@ -168,9 +167,7 @@ static void __init csb337_board_init(void) /* USB Device */ at91_add_device_udc(&csb337_udc_data); /* I2C */ - at91_add_device_i2c(); - i2c_register_board_info(0, csb337_i2c_devices, - ARRAY_SIZE(csb337_i2c_devices)); + at91_add_device_i2c(csb337_i2c_devices, ARRAY_SIZE(csb337_i2c_devices)); /* Compact Flash */ at91_set_gpio_input(AT91_PIN_PB22, 1); /* IOIS16 */ at91_add_device_cf(&csb337_cf_data); diff --git a/arch/arm/mach-at91/board-csb637.c b/arch/arm/mach-at91/board-csb637.c index 77f04b935b3a..c5c721d27f42 100644 --- a/arch/arm/mach-at91/board-csb637.c +++ b/arch/arm/mach-at91/board-csb637.c @@ -129,7 +129,7 @@ static void __init csb637_board_init(void) /* USB Device */ at91_add_device_udc(&csb637_udc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* SPI */ at91_add_device_spi(NULL, 0); /* NOR flash */ diff --git a/arch/arm/mach-at91/board-dk.c b/arch/arm/mach-at91/board-dk.c index af497896a96c..40c9e4331706 100644 --- a/arch/arm/mach-at91/board-dk.c +++ b/arch/arm/mach-at91/board-dk.c @@ -124,6 +124,19 @@ static struct spi_board_info dk_spi_devices[] = { #endif }; +static struct i2c_board_info __initdata dk_i2c_devices[] = { + { + I2C_BOARD_INFO("ics1523", 0x26), + }, + { + I2C_BOARD_INFO("x9429", 0x28), + }, + { + I2C_BOARD_INFO("at24c", 0x50), + .type = "24c1024", + } +}; + static struct mtd_partition __initdata dk_nand_partition[] = { { .name = "NAND Partition 1", @@ -185,7 +198,7 @@ static void __init dk_board_init(void) /* Compact Flash */ at91_add_device_cf(&dk_cf_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(dk_i2c_devices, ARRAY_SIZE(dk_i2c_devices)); /* SPI */ at91_add_device_spi(dk_spi_devices, ARRAY_SIZE(dk_spi_devices)); #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD diff --git a/arch/arm/mach-at91/board-eb9200.c b/arch/arm/mach-at91/board-eb9200.c index 20458b5548f0..b7b79bb9d6c4 100644 --- a/arch/arm/mach-at91/board-eb9200.c +++ b/arch/arm/mach-at91/board-eb9200.c @@ -91,6 +91,14 @@ static struct at91_mmc_data __initdata eb9200_mmc_data = { .wire4 = 1, }; +static struct i2c_board_info __initdata eb9200_i2c_devices[] = { + { + I2C_BOARD_INFO("at24c", 0x50), + .type = "24c512", + }, +}; + + static void __init eb9200_board_init(void) { /* Serial */ @@ -102,7 +110,7 @@ static void __init eb9200_board_init(void) /* USB Device */ at91_add_device_udc(&eb9200_udc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(eb9200_i2c_devices, ARRAY_SIZE(eb9200_i2c_devices)); /* Compact Flash */ at91_add_device_cf(&eb9200_cf_data); /* SPI */ diff --git a/arch/arm/mach-at91/board-ek.c b/arch/arm/mach-at91/board-ek.c index 322fdd75a1e4..d05b1b2be9fb 100644 --- a/arch/arm/mach-at91/board-ek.c +++ b/arch/arm/mach-at91/board-ek.c @@ -145,7 +145,7 @@ static void __init ek_board_init(void) at91_add_device_udc(&ek_udc_data); at91_set_multi_drive(ek_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */ /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); /* SPI */ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD diff --git a/arch/arm/mach-at91/board-kafa.c b/arch/arm/mach-at91/board-kafa.c index c77d84ce9cae..cf1b7b2f76fb 100644 --- a/arch/arm/mach-at91/board-kafa.c +++ b/arch/arm/mach-at91/board-kafa.c @@ -92,7 +92,7 @@ static void __init kafa_board_init(void) /* USB Device */ at91_add_device_udc(&kafa_udc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* SPI */ at91_add_device_spi(NULL, 0); } diff --git a/arch/arm/mach-at91/board-kb9202.c b/arch/arm/mach-at91/board-kb9202.c index 7d9b1a278fd6..4b39b9cda75b 100644 --- a/arch/arm/mach-at91/board-kb9202.c +++ b/arch/arm/mach-at91/board-kb9202.c @@ -124,7 +124,7 @@ static void __init kb9202_board_init(void) /* MMC */ at91_add_device_mmc(0, &kb9202_mmc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* SPI */ at91_add_device_spi(NULL, 0); /* NAND */ diff --git a/arch/arm/mach-at91/board-picotux200.c b/arch/arm/mach-at91/board-picotux200.c index 49cfe7ab4a85..6acb55c09ae5 100644 --- a/arch/arm/mach-at91/board-picotux200.c +++ b/arch/arm/mach-at91/board-picotux200.c @@ -139,7 +139,7 @@ static void __init picotux200_board_init(void) // at91_add_device_udc(&picotux200_udc_data); // at91_set_multi_drive(picotux200_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */ /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* SPI */ // at91_add_device_spi(picotux200_spi_devices, ARRAY_SIZE(picotux200_spi_devices)); #ifdef CONFIG_MTD_AT91_DATAFLASH_CARD diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c index 65fa532bb4ac..b343a6c28120 100644 --- a/arch/arm/mach-at91/board-sam9260ek.c +++ b/arch/arm/mach-at91/board-sam9260ek.c @@ -189,7 +189,7 @@ static void __init ek_board_init(void) /* MMC */ at91_add_device_mmc(0, &ek_mmc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); } MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index 42e172cb0f49..550ae59a3aca 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -382,14 +382,14 @@ static struct platform_device ek_button_device = { static void __init ek_add_device_buttons(void) { - at91_set_gpio_input(AT91_PIN_PB27, 0); /* btn0 */ - at91_set_deglitch(AT91_PIN_PB27, 1); - at91_set_gpio_input(AT91_PIN_PB26, 0); /* btn1 */ - at91_set_deglitch(AT91_PIN_PB26, 1); - at91_set_gpio_input(AT91_PIN_PB25, 0); /* btn2 */ - at91_set_deglitch(AT91_PIN_PB25, 1); - at91_set_gpio_input(AT91_PIN_PB24, 0); /* btn3 */ - at91_set_deglitch(AT91_PIN_PB24, 1); + at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */ + at91_set_deglitch(AT91_PIN_PA27, 1); + at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */ + at91_set_deglitch(AT91_PIN_PA26, 1); + at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */ + at91_set_deglitch(AT91_PIN_PA25, 1); + at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */ + at91_set_deglitch(AT91_PIN_PA24, 1); platform_device_register(&ek_button_device); } @@ -406,7 +406,7 @@ static void __init ek_board_init(void) /* USB Device */ at91_add_device_udc(&ek_udc_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* NAND */ at91_add_device_nand(&ek_nand_data); /* DM9000 ethernet */ diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c index 2a1cc73390b7..ab9dcc075454 100644 --- a/arch/arm/mach-at91/board-sam9263ek.c +++ b/arch/arm/mach-at91/board-sam9263ek.c @@ -291,7 +291,7 @@ static void __init ek_board_init(void) /* NAND */ at91_add_device_nand(&ek_nand_data); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* LCD Controller */ at91_add_device_lcdc(&ek_lcdc_data); /* AC97 */ diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c index 9b61320f295a..bc0546d7245f 100644 --- a/arch/arm/mach-at91/board-sam9rlek.c +++ b/arch/arm/mach-at91/board-sam9rlek.c @@ -181,7 +181,7 @@ static void __init ek_board_init(void) /* Serial */ at91_add_device_serial(); /* I2C */ - at91_add_device_i2c(); + at91_add_device_i2c(NULL, 0); /* NAND */ at91_add_device_nand(&ek_nand_data); /* SPI */ diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index 848efb2a4ebf..57c3b647ce83 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -351,7 +351,7 @@ static void init_programmable_clock(struct clk *clk) pckr = at91_sys_read(AT91_PMC_PCKR(clk->id)); parent = at91_css_to_clk(pckr & AT91_PMC_CSS); clk->parent = parent; - clk->rate_hz = parent->rate_hz / (1 << ((pckr >> 2) & 3)); + clk->rate_hz = parent->rate_hz / (1 << ((pckr & AT91_PMC_PRES) >> 2)); } #endif /* CONFIG_AT91_PROGRAMMABLE_CLOCKS */ @@ -587,8 +587,11 @@ int __init at91_clock_init(unsigned long main_clock) mckr = at91_sys_read(AT91_PMC_MCKR); mck.parent = at91_css_to_clk(mckr & AT91_PMC_CSS); freq = mck.parent->rate_hz; - freq /= (1 << ((mckr >> 2) & 3)); /* prescale */ - mck.rate_hz = freq / (1 + ((mckr >> 8) & 3)); /* mdiv */ + freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */ + if (cpu_is_at91rm9200()) + mck.rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ + else + mck.rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ /* Register the PMC's standard clocks */ for (i = 0; i < ARRAY_SIZE(standard_pmc_clocks); i++) diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c index 0791b56caecc..a7465db84893 100644 --- a/arch/arm/mach-imx/irq.c +++ b/arch/arm/mach-imx/irq.c @@ -43,12 +43,46 @@ * */ -#define INTENNUM_OFF 0x8 -#define INTDISNUM_OFF 0xC +#define INTCNTL_OFF 0x00 +#define NIMASK_OFF 0x04 +#define INTENNUM_OFF 0x08 +#define INTDISNUM_OFF 0x0C +#define INTENABLEH_OFF 0x10 +#define INTENABLEL_OFF 0x14 +#define INTTYPEH_OFF 0x18 +#define INTTYPEL_OFF 0x1C +#define NIPRIORITY_OFF(x) (0x20+4*(7-(x))) +#define NIVECSR_OFF 0x40 +#define FIVECSR_OFF 0x44 +#define INTSRCH_OFF 0x48 +#define INTSRCL_OFF 0x4C +#define INTFRCH_OFF 0x50 +#define INTFRCL_OFF 0x54 +#define NIPNDH_OFF 0x58 +#define NIPNDL_OFF 0x5C +#define FIPNDH_OFF 0x60 +#define FIPNDL_OFF 0x64 #define VA_AITC_BASE IO_ADDRESS(IMX_AITC_BASE) -#define IMX_AITC_INTDISNUM (VA_AITC_BASE + INTDISNUM_OFF) +#define IMX_AITC_INTCNTL (VA_AITC_BASE + INTCNTL_OFF) +#define IMX_AITC_NIMASK (VA_AITC_BASE + NIMASK_OFF) #define IMX_AITC_INTENNUM (VA_AITC_BASE + INTENNUM_OFF) +#define IMX_AITC_INTDISNUM (VA_AITC_BASE + INTDISNUM_OFF) +#define IMX_AITC_INTENABLEH (VA_AITC_BASE + INTENABLEH_OFF) +#define IMX_AITC_INTENABLEL (VA_AITC_BASE + INTENABLEL_OFF) +#define IMX_AITC_INTTYPEH (VA_AITC_BASE + INTTYPEH_OFF) +#define IMX_AITC_INTTYPEL (VA_AITC_BASE + INTTYPEL_OFF) +#define IMX_AITC_NIPRIORITY(x) (VA_AITC_BASE + NIPRIORITY_OFF(x)) +#define IMX_AITC_NIVECSR (VA_AITC_BASE + NIVECSR_OFF) +#define IMX_AITC_FIVECSR (VA_AITC_BASE + FIVECSR_OFF) +#define IMX_AITC_INTSRCH (VA_AITC_BASE + INTSRCH_OFF) +#define IMX_AITC_INTSRCL (VA_AITC_BASE + INTSRCL_OFF) +#define IMX_AITC_INTFRCH (VA_AITC_BASE + INTFRCH_OFF) +#define IMX_AITC_INTFRCL (VA_AITC_BASE + INTFRCL_OFF) +#define IMX_AITC_NIPNDH (VA_AITC_BASE + NIPNDH_OFF) +#define IMX_AITC_NIPNDL (VA_AITC_BASE + NIPNDL_OFF) +#define IMX_AITC_FIPNDH (VA_AITC_BASE + FIPNDH_OFF) +#define IMX_AITC_FIPNDL (VA_AITC_BASE + FIPNDL_OFF) #if 0 #define DEBUG_IRQ(fmt...) printk(fmt) @@ -222,7 +256,12 @@ imx_init_irq(void) DEBUG_IRQ("Initializing imx interrupts\n"); - /* Mask all interrupts initially */ + /* Disable all interrupts initially. */ + /* Do not rely on the bootloader. */ + __raw_writel(0, IMX_AITC_INTENABLEH); + __raw_writel(0, IMX_AITC_INTENABLEL); + + /* Mask all GPIO interrupts as well */ IMR(0) = 0; IMR(1) = 0; IMR(2) = 0; @@ -245,6 +284,6 @@ imx_init_irq(void) set_irq_chained_handler(GPIO_INT_PORTC, imx_gpioc_demux_handler); set_irq_chained_handler(GPIO_INT_PORTD, imx_gpiod_demux_handler); - /* Disable all interrupts initially. */ - /* In IMX this is done in the bootloader. */ + /* Release masking of interrupts according to priority */ + __raw_writel(-1, IMX_AITC_NIMASK); } diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c index d0f2b597db12..8e126e6b74c3 100644 --- a/arch/arm/mach-pxa/pxa27x.c +++ b/arch/arm/mach-pxa/pxa27x.c @@ -146,7 +146,7 @@ static struct clk pxa27x_clks[] = { INIT_CKEN("MMCCLK", MMC, 19500000, 0, &pxa_device_mci.dev), INIT_CKEN("FICPCLK", FICP, 48000000, 0, &pxa_device_ficp.dev), - INIT_CKEN("USBCLK", USB, 48000000, 0, &pxa27x_device_ohci.dev), + INIT_CKEN("USBCLK", USBHOST, 48000000, 0, &pxa27x_device_ohci.dev), INIT_CKEN("I2CCLK", PWRI2C, 13000000, 0, &pxa27x_device_i2c_power.dev), INIT_CKEN("KBDCLK", KEYPAD, 32768, 0, NULL), diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c index 1010f77d977a..74128eb8f8d0 100644 --- a/arch/arm/mach-pxa/pxa320.c +++ b/arch/arm/mach-pxa/pxa320.c @@ -23,8 +23,11 @@ static struct pxa3xx_mfp_addr_map pxa320_mfp_addr_map[] __initdata = { MFP_ADDR_X(GPIO0, GPIO4, 0x0124), - MFP_ADDR_X(GPIO5, GPIO26, 0x028C), - MFP_ADDR_X(GPIO27, GPIO62, 0x0400), + MFP_ADDR_X(GPIO5, GPIO9, 0x028C), + MFP_ADDR(GPIO10, 0x0458), + MFP_ADDR_X(GPIO11, GPIO26, 0x02A0), + MFP_ADDR_X(GPIO27, GPIO48, 0x0400), + MFP_ADDR_X(GPIO49, GPIO62, 0x045C), MFP_ADDR_X(GPIO63, GPIO73, 0x04B4), MFP_ADDR_X(GPIO74, GPIO98, 0x04F0), MFP_ADDR_X(GPIO99, GPIO127, 0x0600), diff --git a/arch/arm/mach-pxa/ssp.c b/arch/arm/mach-pxa/ssp.c index 71766ac0328b..422afee88169 100644 --- a/arch/arm/mach-pxa/ssp.c +++ b/arch/arm/mach-pxa/ssp.c @@ -309,6 +309,7 @@ void ssp_exit(struct ssp_dev *dev) if (dev->port > PXA_SSP_PORTS || dev->port == 0) { printk(KERN_WARNING "SSP: tried to close invalid port\n"); + mutex_unlock(&mutex); return; } diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index 74c5c62365a8..0e2b5cd81f67 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -5,6 +5,10 @@ * * Copyright (C) 2007 by Ralf Baechle */ +#include <linux/clocksource.h> +#include <linux/init.h> + +#include <asm/time.h> static cycle_t c0_hpt_read(void) { @@ -18,7 +22,7 @@ static struct clocksource clocksource_mips = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static void __init init_mips_clocksource(void) +void __init init_mips_clocksource(void) { /* Calclate a somewhat reasonable rating value */ clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000; diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c index 5443ea3596f8..bc647cb77298 100644 --- a/arch/mips/pci/pci-bcm1480.c +++ b/arch/mips/pci/pci-bcm1480.c @@ -76,8 +76,7 @@ static inline void WRITECFG32(u32 addr, u32 data) int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { - This is b0rked. - return dev->irq; + return K_BCM1480_INT_PCI_INTA + pin; } /* Do platform specific device initialization at pci_enable_device() time */ diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 053cac19f714..52e95c2158c0 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -638,18 +638,18 @@ void rtas_halt(void) /* Must be in the RMO region, so we place it here */ static char rtas_os_term_buf[2048]; -void rtas_panic_msg(char *str) -{ - snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str); -} - -void rtas_os_term(void) +void rtas_os_term(char *str) { int status; + if (panic_timeout) + return; + if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term")) return; + snprintf(rtas_os_term_buf, 2048, "OS panic: %s", str); + do { status = rtas_call(rtas_token("ibm,os-term"), 1, 1, NULL, __pa(rtas_os_term_buf)); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index fdeefe54ea91..fdb9b1c8f977 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -507,8 +507,7 @@ define_machine(pseries) { .restart = rtas_restart, .power_off = pSeries_power_off, .halt = rtas_halt, - .panic = rtas_panic_msg, - .machine_shutdown = rtas_os_term, + .panic = rtas_os_term, .get_boot_time = rtas_get_boot_time, .get_rtc_time = rtas_get_rtc_time, .set_rtc_time = rtas_set_rtc_time, diff --git a/arch/ppc/configs/ml300_defconfig b/arch/ppc/configs/ml300_defconfig index 69bad91a6b65..d66cacdb95be 100644 --- a/arch/ppc/configs/ml300_defconfig +++ b/arch/ppc/configs/ml300_defconfig @@ -719,7 +719,7 @@ CONFIG_DEBUG_INFO=y CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_KGDB is not set -CONFIG_XMON=y +# CONFIG_XMON is not set # CONFIG_BDI_SWITCH is not set # CONFIG_SERIAL_TEXT_DEBUG is not set diff --git a/arch/ppc/configs/ml403_defconfig b/arch/ppc/configs/ml403_defconfig index a78896ea4560..71bcfa7ab7f7 100644 --- a/arch/ppc/configs/ml403_defconfig +++ b/arch/ppc/configs/ml403_defconfig @@ -720,7 +720,7 @@ CONFIG_DEBUG_INFO=y CONFIG_FORCED_INLINING=y # CONFIG_RCU_TORTURE_TEST is not set # CONFIG_KGDB is not set -CONFIG_XMON=y +# CONFIG_XMON is not set # CONFIG_BDI_SWITCH is not set # CONFIG_SERIAL_TEXT_DEBUG is not set diff --git a/arch/um/Kconfig.i386 b/arch/um/Kconfig.i386 index e0ac74e5d4c4..717f5d3440e3 100644 --- a/arch/um/Kconfig.i386 +++ b/arch/um/Kconfig.i386 @@ -8,6 +8,13 @@ config UML_X86 bool default y +config X86_32 + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + def_bool y + config 64BIT bool default n diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index b88e93b3a39f..025764089ac8 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -74,10 +74,16 @@ void generic_free(void *data) int generic_console_write(int fd, const char *buf, int n) { + sigset_t old, no_sigio; struct termios save, new; int err; if (isatty(fd)) { + sigemptyset(&no_sigio); + sigaddset(&no_sigio, SIGIO); + if (sigprocmask(SIG_BLOCK, &no_sigio, &old)) + goto error; + CATCH_EINTR(err = tcgetattr(fd, &save)); if (err) goto error; @@ -97,8 +103,11 @@ int generic_console_write(int fd, const char *buf, int n) * Restore raw mode, in any case; we *must* ignore any error apart * EINTR, except for debug. */ - if (isatty(fd)) + if (isatty(fd)) { CATCH_EINTR(tcsetattr(fd, TCSAFLUSH, &save)); + sigprocmask(SIG_SETMASK, &old, NULL); + } + return err; error: return -errno; diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index ef02d941c2ad..e49280599465 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -77,6 +77,7 @@ long long os_nsecs(void) #ifdef UML_CONFIG_NO_HZ static int after_sleep_interval(struct timespec *ts) { + return 0; } #else static inline long long timespec_to_us(const struct timespec *ts) diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c index 8bb482ff091b..9a5fa0abfcc7 100644 --- a/arch/x86/kernel/crash.c +++ b/arch/x86/kernel/crash.c @@ -22,6 +22,7 @@ #include <asm/nmi.h> #include <asm/hw_irq.h> #include <asm/apic.h> +#include <asm/hpet.h> #include <linux/kdebug.h> #include <asm/smp.h> @@ -140,5 +141,8 @@ void machine_crash_shutdown(struct pt_regs *regs) #if defined(CONFIG_X86_IO_APIC) disable_IO_APIC(); #endif +#ifdef CONFIG_HPET_TIMER + hpet_disable(); +#endif crash_save_cpu(regs, safe_smp_processor_id()); } diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 374b7ece8961..ac0637a6d71c 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -193,6 +193,12 @@ default_entry: jb 10b movl %edi,(init_pg_tables_end - __PAGE_OFFSET) + /* Do an early initialization of the fixmap area */ + movl $(swapper_pg_dir - __PAGE_OFFSET), %edx + movl $(swapper_pg_pmd - __PAGE_OFFSET), %eax + addl $0x007, %eax /* 0x007 = PRESENT+RW+USER */ + movl %eax, 4092(%edx) + xorl %ebx,%ebx /* This is the boot CPU (BSP) */ jmp 3f /* @@ -208,12 +214,6 @@ default_entry: .section .init.text,"ax",@progbits #endif - /* Do an early initialization of the fixmap area */ - movl $(swapper_pg_dir - __PAGE_OFFSET), %edx - movl $(swapper_pg_pmd - __PAGE_OFFSET), %eax - addl $0x007, %eax /* 0x007 = PRESENT+RW+USER */ - movl %eax, 4092(%edx) - #ifdef CONFIG_SMP ENTRY(startup_32_smp) cld diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index 53303f2e5475..4a86ffd67ec5 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -446,6 +446,20 @@ static __init int hpet_late_init(void) } fs_initcall(hpet_late_init); +void hpet_disable(void) +{ + if (is_hpet_capable()) { + unsigned long cfg = hpet_readl(HPET_CFG); + + if (hpet_legacy_int_enabled) { + cfg &= ~HPET_CFG_LEGACY; + hpet_legacy_int_enabled = 0; + } + cfg &= ~HPET_CFG_ENABLE; + hpet_writel(cfg, HPET_CFG); + } +} + #ifdef CONFIG_HPET_EMULATE_RTC /* HPET in LegacyReplacement Mode eats up RTC interrupt line. When, HPET diff --git a/arch/x86/kernel/reboot_32.c b/arch/x86/kernel/reboot_32.c index 9e2269d00918..bb1a0f889c5e 100644 --- a/arch/x86/kernel/reboot_32.c +++ b/arch/x86/kernel/reboot_32.c @@ -11,6 +11,7 @@ #include <linux/reboot.h> #include <asm/uaccess.h> #include <asm/apic.h> +#include <asm/hpet.h> #include <asm/desc.h> #include "mach_reboot.h" #include <asm/reboot_fixups.h> @@ -326,6 +327,9 @@ static void native_machine_shutdown(void) #ifdef CONFIG_X86_IO_APIC disable_IO_APIC(); #endif +#ifdef CONFIG_HPET_TIMER + hpet_disable(); +#endif } void __attribute__((weak)) mach_reboot_fixups(void) diff --git a/arch/x86/kernel/reboot_64.c b/arch/x86/kernel/reboot_64.c index 71b13c5f5817..53620a92a8fd 100644 --- a/arch/x86/kernel/reboot_64.c +++ b/arch/x86/kernel/reboot_64.c @@ -17,6 +17,7 @@ #include <asm/pgtable.h> #include <asm/tlbflush.h> #include <asm/apic.h> +#include <asm/hpet.h> #include <asm/gart.h> /* @@ -113,6 +114,9 @@ void machine_shutdown(void) disable_IO_APIC(); +#ifdef CONFIG_HPET_TIMER + hpet_disable(); +#endif local_irq_restore(flags); pci_iommu_shutdown(); |