diff options
Diffstat (limited to 'arch')
51 files changed, 401 insertions, 196 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index db524e75c4a2..f1d9297b1050 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -9,7 +9,7 @@ config ARM select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI) select HAVE_OPROFILE if (HAVE_PERF_EVENTS) select HAVE_ARCH_KGDB - select HAVE_KPROBES if (!XIP_KERNEL) + select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL) select HAVE_KRETPROBES if (HAVE_KPROBES) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 4a590f4113e2..4d26f2c52a75 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -70,12 +70,7 @@ else $(obj)/uImage: LOADADDR=$(ZRELADDR) endif -ifeq ($(CONFIG_THUMB2_KERNEL),y) -# Set bit 0 to 1 so that "mov pc, rx" switches to Thumb-2 mode -$(obj)/uImage: STARTADDR=$(shell echo $(LOADADDR) | sed -e "s/.$$/1/") -else $(obj)/uImage: STARTADDR=$(LOADADDR) -endif $(obj)/uImage: $(obj)/zImage FORCE $(call if_changed,uimage) diff --git a/arch/arm/boot/bootp/init.S b/arch/arm/boot/bootp/init.S index 8b0de41c3dcb..78b508075161 100644 --- a/arch/arm/boot/bootp/init.S +++ b/arch/arm/boot/bootp/init.S @@ -73,6 +73,8 @@ move: ldmia r4!, {r7 - r10} @ move 32-bytes at a time .size _start, . - _start + .align + .type data,#object data: .word initrd_start @ source initrd address .word initrd_phys @ destination initrd address diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 9be21ba648cd..7193884ed8b0 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -125,9 +125,13 @@ wait: mrc p14, 0, pc, c0, c1, 0 * sort out different calling conventions */ .align + .arm @ Always enter in ARM state start: .type start,#function - .rept 8 + THUMB( adr r12, BSYM(1f) ) + THUMB( bx r12 ) + THUMB( .rept 6 ) + ARM( .rept 8 ) mov r0, r0 .endr @@ -135,6 +139,7 @@ start: .word 0x016f2818 @ Magic numbers to help the loader .word start @ absolute load/run zImage address .word _edata @ zImage end address + THUMB( .thumb ) 1: mov r7, r1 @ save architecture ID mov r8, r2 @ save atags pointer @@ -174,7 +179,8 @@ not_angel: ldr sp, [r0, #28] #ifdef CONFIG_AUTO_ZRELADDR @ determine final kernel image address - and r4, pc, #0xf8000000 + mov r4, pc + and r4, r4, #0xf8000000 add r4, r4, #TEXT_OFFSET #else ldr r4, =zreladdr @@ -445,7 +451,8 @@ __setup_mmu: sub r3, r4, #16384 @ Page directory size */ mov r1, #0x1e orr r1, r1, #3 << 10 - mov r2, pc, lsr #20 + mov r2, pc + mov r2, r2, lsr #20 orr r1, r1, r2, lsl #20 add r0, r3, r2, lsl #2 str r1, [r0], #4 diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 772f95f1aecd..e6388dcd8cfa 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -146,9 +146,15 @@ static int gic_set_cpu(unsigned int irq, const struct cpumask *mask_val) unsigned int shift = (irq % 4) * 8; unsigned int cpu = cpumask_first(mask_val); u32 val; + struct irq_desc *desc; spin_lock(&irq_controller_lock); - irq_desc[irq].node = cpu; + desc = irq_to_desc(irq); + if (desc == NULL) { + spin_unlock(&irq_controller_lock); + return -EINVAL; + } + desc->node = cpu; val = readl(reg) & ~(0xff << shift); val |= 1 << (cpu + shift); writel(val, reg); @@ -210,7 +216,7 @@ void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq) void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, unsigned int irq_start) { - unsigned int max_irq, i; + unsigned int gic_irqs, irq_limit, i; u32 cpumask = 1 << smp_processor_id(); if (gic_nr >= MAX_GIC_NR) @@ -226,47 +232,49 @@ void __init gic_dist_init(unsigned int gic_nr, void __iomem *base, /* * Find out how many interrupts are supported. - */ - max_irq = readl(base + GIC_DIST_CTR) & 0x1f; - max_irq = (max_irq + 1) * 32; - - /* * The GIC only supports up to 1020 interrupt sources. - * Limit this to either the architected maximum, or the - * platform maximum. */ - if (max_irq > max(1020, NR_IRQS)) - max_irq = max(1020, NR_IRQS); + gic_irqs = readl(base + GIC_DIST_CTR) & 0x1f; + gic_irqs = (gic_irqs + 1) * 32; + if (gic_irqs > 1020) + gic_irqs = 1020; /* * Set all global interrupts to be level triggered, active low. */ - for (i = 32; i < max_irq; i += 16) + for (i = 32; i < gic_irqs; i += 16) writel(0, base + GIC_DIST_CONFIG + i * 4 / 16); /* * Set all global interrupts to this CPU only. */ - for (i = 32; i < max_irq; i += 4) + for (i = 32; i < gic_irqs; i += 4) writel(cpumask, base + GIC_DIST_TARGET + i * 4 / 4); /* * Set priority on all global interrupts. */ - for (i = 32; i < max_irq; i += 4) + for (i = 32; i < gic_irqs; i += 4) writel(0xa0a0a0a0, base + GIC_DIST_PRI + i * 4 / 4); /* * Disable all interrupts. Leave the PPI and SGIs alone * as these enables are banked registers. */ - for (i = 32; i < max_irq; i += 32) + for (i = 32; i < gic_irqs; i += 32) writel(0xffffffff, base + GIC_DIST_ENABLE_CLEAR + i * 4 / 32); /* + * Limit number of interrupts registered to the platform maximum + */ + irq_limit = gic_data[gic_nr].irq_offset + gic_irqs; + if (WARN_ON(irq_limit > NR_IRQS)) + irq_limit = NR_IRQS; + + /* * Setup the Linux IRQ subsystem. */ - for (i = irq_start; i < gic_data[gic_nr].irq_offset + max_irq; i++) { + for (i = irq_start; i < irq_limit; i++) { set_irq_chip(i, &gic_chip); set_irq_chip_data(i, &gic_data[gic_nr]); set_irq_handler(i, handle_level_irq); diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index c09e3573c5de..bb96a7d4bbf5 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -911,7 +911,7 @@ __kuser_cmpxchg: @ 0xffff0fc0 * A special ghost syscall is used for that (see traps.c). */ stmfd sp!, {r7, lr} - ldr r7, =1f @ it's 20 bits + ldr r7, 1f @ it's 20 bits swi __ARM_NR_cmpxchg ldmfd sp!, {r7, pc} 1: .word __ARM_NR_cmpxchg diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index dd6b369ac69c..6bd82d25683c 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -85,9 +85,11 @@ ENTRY(stext) mrc p15, 0, r9, c0, c0 @ get processor id bl __lookup_processor_type @ r5=procinfo r9=cpuid movs r10, r5 @ invalid processor (r5=0)? + THUMB( it eq ) @ force fixup-able long branch encoding beq __error_p @ yes, error 'p' bl __lookup_machine_type @ r5=machinfo movs r8, r5 @ invalid machine (r5=0)? + THUMB( it eq ) @ force fixup-able long branch encoding beq __error_a @ yes, error 'a' bl __vet_atags #ifdef CONFIG_SMP_ON_UP @@ -262,6 +264,7 @@ __create_page_tables: mov pc, lr ENDPROC(__create_page_tables) .ltorg + .align __enable_mmu_loc: .long . .long __enable_mmu @@ -282,6 +285,7 @@ ENTRY(secondary_startup) bl __lookup_processor_type movs r10, r5 @ invalid processor? moveq r0, #'p' @ yes, error 'p' + THUMB( it eq ) @ force fixup-able long branch encoding beq __error_p /* @@ -308,6 +312,8 @@ ENTRY(__secondary_switched) b secondary_start_kernel ENDPROC(__secondary_switched) + .align + .type __secondary_data, %object __secondary_data: .long . @@ -413,6 +419,7 @@ __fixup_smp_on_up: mov pc, lr ENDPROC(__fixup_smp) + .align 1: .word . .word __smpalt_begin .word __smpalt_end diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S index fd26f8d65151..9cf4cbf8f95b 100644 --- a/arch/arm/kernel/relocate_kernel.S +++ b/arch/arm/kernel/relocate_kernel.S @@ -59,6 +59,8 @@ relocate_new_kernel: ldr r2,kexec_boot_atags mov pc,lr + .align + .globl kexec_start_address kexec_start_address: .long 0x0 diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c index 38088c36936c..78defd71a829 100644 --- a/arch/arm/mach-cns3xxx/pcie.c +++ b/arch/arm/mach-cns3xxx/pcie.c @@ -369,7 +369,7 @@ static int __init cns3xxx_pcie_init(void) { int i; - hook_fault_code(16 + 6, cns3xxx_pcie_abort_handler, SIGBUS, + hook_fault_code(16 + 6, cns3xxx_pcie_abort_handler, SIGBUS, 0, "imprecise external abort"); for (i = 0; i < ARRAY_SIZE(cns3xxx_pcie); i++) { diff --git a/arch/arm/mach-realview/headsmp.S b/arch/arm/mach-realview/headsmp.S index 4075473cf68a..b34be4554d40 100644 --- a/arch/arm/mach-realview/headsmp.S +++ b/arch/arm/mach-realview/headsmp.S @@ -35,5 +35,6 @@ pen: ldr r7, [r6] */ b secondary_startup + .align 1: .long . .long pen_release diff --git a/arch/arm/mach-s3c2412/Kconfig b/arch/arm/mach-s3c2412/Kconfig index cef6a65637bd..fa2e5bffbb8e 100644 --- a/arch/arm/mach-s3c2412/Kconfig +++ b/arch/arm/mach-s3c2412/Kconfig @@ -16,7 +16,7 @@ config CPU_S3C2412 config CPU_S3C2412_ONLY bool depends on ARCH_S3C2410 && !CPU_S3C2400 && !CPU_S3C2410 && \ - !CPU_2416 && !CPU_S3C2440 && !CPU_S3C2442 && \ + !CPU_S3C2416 && !CPU_S3C2440 && !CPU_S3C2442 && \ !CPU_S3C2443 && CPU_S3C2412 default y if CPU_S3C2412 diff --git a/arch/arm/mach-s3c2416/Kconfig b/arch/arm/mach-s3c2416/Kconfig index 87b9c9f003bd..27b3e7c9d613 100644 --- a/arch/arm/mach-s3c2416/Kconfig +++ b/arch/arm/mach-s3c2416/Kconfig @@ -35,9 +35,12 @@ menu "S3C2416 Machines" config MACH_SMDK2416 bool "SMDK2416" select CPU_S3C2416 + select MACH_SMDK select S3C_DEV_FB select S3C_DEV_HSMMC select S3C_DEV_HSMMC1 + select S3C_DEV_NAND + select S3C_DEV_USB_HOST select S3C2416_PM if PM help Say Y here if you are using an SMDK2416 diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig index ff024a6c0f85..a0cb2581894f 100644 --- a/arch/arm/mach-s3c2440/Kconfig +++ b/arch/arm/mach-s3c2440/Kconfig @@ -18,6 +18,7 @@ config CPU_S3C2440 config CPU_S3C2442 bool select CPU_ARM920T + select S3C_GPIO_PULL_DOWN select S3C2410_CLOCK select S3C2410_GPIO select S3C2410_PM if PM @@ -178,6 +179,9 @@ config MACH_MINI2440 bool "MINI2440 development board" select CPU_S3C2440 select EEPROM_AT24 + select NEW_LEDS + select LEDS_CLASS + select LEDS_TRIGGER select LEDS_TRIGGER_BACKLIGHT select S3C_DEV_NAND select S3C_DEV_USB_HOST diff --git a/arch/arm/mach-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c index d50f3ae6173d..f7663f731ea0 100644 --- a/arch/arm/mach-s3c2440/s3c2440.c +++ b/arch/arm/mach-s3c2440/s3c2440.c @@ -46,9 +46,6 @@ int __init s3c2440_init(void) { printk("S3C2440: Initialising architecture\n"); - s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1up; - s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1up; - /* change irq for watchdog */ s3c_device_wdt.resource[1].start = IRQ_S3C2440_WDT; @@ -58,3 +55,11 @@ int __init s3c2440_init(void) return sysdev_register(&s3c2440_sysdev); } + +void __init s3c2440_map_io(void) +{ + s3c244x_map_io(); + + s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1up; + s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1up; +} diff --git a/arch/arm/mach-s3c2440/s3c2442.c b/arch/arm/mach-s3c2440/s3c2442.c index 188ad1e57dc0..ecf813546554 100644 --- a/arch/arm/mach-s3c2440/s3c2442.c +++ b/arch/arm/mach-s3c2440/s3c2442.c @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/mutex.h> +#include <linux/gpio.h> #include <linux/clk.h> #include <linux/io.h> @@ -43,6 +44,11 @@ #include <plat/clock.h> #include <plat/cpu.h> +#include <plat/s3c244x.h> + +#include <plat/gpio-core.h> +#include <plat/gpio-cfg.h> +#include <plat/gpio-cfg-helpers.h> /* S3C2442 extended clock support */ @@ -163,3 +169,11 @@ int __init s3c2442_init(void) return sysdev_register(&s3c2442_sysdev); } + +void __init s3c2442_map_io(void) +{ + s3c244x_map_io(); + + s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1down; + s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1down; +} diff --git a/arch/arm/mach-s3c2443/Kconfig b/arch/arm/mach-s3c2443/Kconfig index 4fef723126fa..31babec90cec 100644 --- a/arch/arm/mach-s3c2443/Kconfig +++ b/arch/arm/mach-s3c2443/Kconfig @@ -5,6 +5,7 @@ config CPU_S3C2443 bool depends on ARCH_S3C2410 + select CPU_ARM920T select S3C2443_DMA if S3C2410_DMA select CPU_LLSERIAL_S3C2440 select SAMSUNG_CLKSRC diff --git a/arch/arm/mach-tegra/include/mach/debug-macro.S b/arch/arm/mach-tegra/include/mach/debug-macro.S index 8ea3bffb4e00..a0e7c12868bd 100644 --- a/arch/arm/mach-tegra/include/mach/debug-macro.S +++ b/arch/arm/mach-tegra/include/mach/debug-macro.S @@ -21,8 +21,8 @@ #include <mach/io.h> .macro addruart, rp, rv - ldreq \rp, =IO_APB_PHYS @ physical - ldrne \rv, =IO_APB_VIRT @ virtual + ldr \rp, =IO_APB_PHYS @ physical + ldr \rv, =IO_APB_VIRT @ virtual #if defined(CONFIG_TEGRA_DEBUG_UART_NONE) #error "A debug UART must be selected in the kernel config to use DEBUG_LL" #elif defined(CONFIG_TEGRA_DEBUG_UARTA) diff --git a/arch/arm/mach-vexpress/headsmp.S b/arch/arm/mach-vexpress/headsmp.S index 8a78ff68e1ee..7a3f0632947c 100644 --- a/arch/arm/mach-vexpress/headsmp.S +++ b/arch/arm/mach-vexpress/headsmp.S @@ -35,5 +35,6 @@ pen: ldr r7, [r6] */ b secondary_startup + .align 1: .long . .long pen_release diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 53cbe2225153..9b9ff5d949fd 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -381,7 +381,7 @@ __v7_ca9mp_proc_info: PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ - b __v7_ca9mp_setup + W(b) __v7_ca9mp_setup .long cpu_arch_name .long cpu_elf_name .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_TLS @@ -413,7 +413,7 @@ __v7_proc_info: PMD_SECT_XN | \ PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ - b __v7_setup + W(b) __v7_setup .long cpu_arch_name .long cpu_elf_name .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_TLS diff --git a/arch/arm/plat-iop/time.c b/arch/arm/plat-iop/time.c index 85d3e55ca4a9..558cdfaf76b6 100644 --- a/arch/arm/plat-iop/time.c +++ b/arch/arm/plat-iop/time.c @@ -18,6 +18,7 @@ #include <linux/time.h> #include <linux/init.h> #include <linux/timex.h> +#include <linux/sched.h> #include <linux/io.h> #include <linux/clocksource.h> #include <linux/clockchips.h> @@ -36,7 +37,7 @@ /* * IOP clocksource (free-running timer 1). */ -static cycle_t iop_clocksource_read(struct clocksource *unused) +static cycle_t notrace iop_clocksource_read(struct clocksource *unused) { return 0xffffffffu - read_tcr1(); } diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c index 76d0858c3cbb..4a10c0f684b2 100644 --- a/arch/arm/plat-s3c24xx/cpu.c +++ b/arch/arm/plat-s3c24xx/cpu.c @@ -88,7 +88,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440000, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2440_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2440_init, @@ -97,7 +97,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440001, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2440_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2440_init, @@ -106,7 +106,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440aaa, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2442_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2442_init, @@ -115,7 +115,7 @@ static struct cpu_table cpu_ids[] __initdata = { { .idcode = 0x32440aab, .idmask = 0xffffffff, - .map_io = s3c244x_map_io, + .map_io = s3c2442_map_io, .init_clocks = s3c244x_init_clocks, .init_uarts = s3c244x_init_uarts, .init = s3c2442_init, diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c index 24c6f5a30596..243b6411050d 100644 --- a/arch/arm/plat-s3c24xx/gpiolib.c +++ b/arch/arm/plat-s3c24xx/gpiolib.c @@ -82,8 +82,6 @@ static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { .set_config = s3c_gpio_setcfg_s3c24xx, .get_config = s3c_gpio_getcfg_s3c24xx, - .set_pull = s3c_gpio_setpull_1up, - .get_pull = s3c_gpio_getpull_1up, }; struct s3c_gpio_chip s3c24xx_gpios[] = { diff --git a/arch/arm/plat-s3c24xx/include/plat/s3c244x.h b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h index 307248d1ccbb..89e8d0a25f87 100644 --- a/arch/arm/plat-s3c24xx/include/plat/s3c244x.h +++ b/arch/arm/plat-s3c24xx/include/plat/s3c244x.h @@ -21,17 +21,22 @@ extern void s3c244x_init_clocks(int xtal); #else #define s3c244x_init_clocks NULL #define s3c244x_init_uarts NULL -#define s3c244x_map_io NULL #endif #ifdef CONFIG_CPU_S3C2440 extern int s3c2440_init(void); + +extern void s3c2440_map_io(void); #else #define s3c2440_init NULL +#define s3c2440_map_io NULL #endif #ifdef CONFIG_CPU_S3C2442 extern int s3c2442_init(void); + +extern void s3c2442_map_io(void); #else #define s3c2442_init NULL +#define s3c2442_map_io NULL #endif diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c index b732b773b9af..0aa32f242ee4 100644 --- a/arch/arm/plat-samsung/gpio-config.c +++ b/arch/arm/plat-samsung/gpio-config.c @@ -280,18 +280,17 @@ s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip, } #endif -#ifdef CONFIG_S3C_GPIO_PULL_UP -int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull) +#if defined(CONFIG_S3C_GPIO_PULL_UP) || defined(CONFIG_S3C_GPIO_PULL_DOWN) +static int s3c_gpio_setpull_1(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull, + s3c_gpio_pull_t updown) { void __iomem *reg = chip->base + 0x08; u32 pup = __raw_readl(reg); - pup = __raw_readl(reg); - - if (pup == S3C_GPIO_PULL_UP) + if (pull == updown) pup &= ~(1 << off); - else if (pup == S3C_GPIO_PULL_NONE) + else if (pull == S3C_GPIO_PULL_NONE) pup |= (1 << off); else return -EINVAL; @@ -300,17 +299,45 @@ int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, return 0; } -s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, - unsigned int off) +static s3c_gpio_pull_t s3c_gpio_getpull_1(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t updown) { void __iomem *reg = chip->base + 0x08; u32 pup = __raw_readl(reg); pup &= (1 << off); - return pup ? S3C_GPIO_PULL_NONE : S3C_GPIO_PULL_UP; + return pup ? S3C_GPIO_PULL_NONE : updown; +} +#endif /* CONFIG_S3C_GPIO_PULL_UP || CONFIG_S3C_GPIO_PULL_DOWN */ + +#ifdef CONFIG_S3C_GPIO_PULL_UP +s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, + unsigned int off) +{ + return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP); +} + +int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull) +{ + return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP); } #endif /* CONFIG_S3C_GPIO_PULL_UP */ +#ifdef CONFIG_S3C_GPIO_PULL_DOWN +s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, + unsigned int off) +{ + return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN); +} + +int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip, + unsigned int off, s3c_gpio_pull_t pull) +{ + return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN); +} +#endif /* CONFIG_S3C_GPIO_PULL_DOWN */ + #ifdef CONFIG_S5P_GPIO_DRVSTR s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin) { diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h index 8fd65d8b5863..0d2c5703f1ee 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h @@ -210,6 +210,17 @@ extern s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, unsigned int off); /** + * s3c_gpio_getpull_1down() - Get configuration for choice of down or none + * @chip: The gpio chip that the GPIO pin belongs to + * @off: The offset to the pin to get the configuration of. + * + * This helper function reads the state of the pull-down resistor for the + * given GPIO in the same case as s3c_gpio_setpull_1down. +*/ +extern s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, + unsigned int off); + +/** * s3c_gpio_setpull_s3c2443() - Pull configuration for s3c2443. * @chip: The gpio chip that is being configured. * @off: The offset for the GPIO being configured. diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S index d66cead97d28..9897dcfc16d6 100644 --- a/arch/arm/vfp/vfphw.S +++ b/arch/arm/vfp/vfphw.S @@ -206,6 +206,7 @@ ENTRY(vfp_save_state) mov pc, lr ENDPROC(vfp_save_state) + .align last_VFP_context_address: .word last_VFP_context diff --git a/arch/mn10300/include/asm/syscall.h b/arch/mn10300/include/asm/syscall.h new file mode 100644 index 000000000000..b44b0bb75a01 --- /dev/null +++ b/arch/mn10300/include/asm/syscall.h @@ -0,0 +1,117 @@ +/* Access to user system call parameters and results + * + * See asm-generic/syscall.h for function descriptions. + * + * Copyright (C) 2010 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ + +#ifndef _ASM_SYSCALL_H +#define _ASM_SYSCALL_H + +#include <linux/sched.h> +#include <linux/err.h> + +extern const unsigned long sys_call_table[]; + +static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs) +{ + return regs->orig_d0; +} + +static inline void syscall_rollback(struct task_struct *task, + struct pt_regs *regs) +{ + regs->d0 = regs->orig_d0; +} + +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + unsigned long error = regs->d0; + return IS_ERR_VALUE(error) ? error : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->d0; +} + +static inline void syscall_set_return_value(struct task_struct *task, + struct pt_regs *regs, + int error, long val) +{ + regs->d0 = (long) error ?: val; +} + +static inline void syscall_get_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + unsigned long *args) +{ + switch (i) { + case 0: + if (!n--) break; + *args++ = regs->a0; + case 1: + if (!n--) break; + *args++ = regs->d1; + case 2: + if (!n--) break; + *args++ = regs->a3; + case 3: + if (!n--) break; + *args++ = regs->a2; + case 4: + if (!n--) break; + *args++ = regs->d3; + case 5: + if (!n--) break; + *args++ = regs->d2; + case 6: + if (!n--) break; + default: + BUG(); + break; + } +} + +static inline void syscall_set_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + const unsigned long *args) +{ + switch (i) { + case 0: + if (!n--) break; + regs->a0 = *args++; + case 1: + if (!n--) break; + regs->d1 = *args++; + case 2: + if (!n--) break; + regs->a3 = *args++; + case 3: + if (!n--) break; + regs->a2 = *args++; + case 4: + if (!n--) break; + regs->d3 = *args++; + case 5: + if (!n--) break; + regs->d2 = *args++; + case 6: + if (!n--) break; + default: + BUG(); + break; + } +} + +#endif /* _ASM_SYSCALL_H */ diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c index 0d5d63c91dc3..f28dc99c6f72 100644 --- a/arch/mn10300/kernel/gdb-io-serial.c +++ b/arch/mn10300/kernel/gdb-io-serial.c @@ -73,7 +73,8 @@ void gdbstub_io_init(void) GDBPORT_SERIAL_IER = UART_IER_RDI | UART_IER_RLSI; /* permit level 0 IRQs to take place */ - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); } /* diff --git a/arch/mn10300/kernel/gdb-io-ttysm.c b/arch/mn10300/kernel/gdb-io-ttysm.c index 97dfda23342c..abdeea153c89 100644 --- a/arch/mn10300/kernel/gdb-io-ttysm.c +++ b/arch/mn10300/kernel/gdb-io-ttysm.c @@ -87,7 +87,8 @@ void __init gdbstub_io_init(void) tmp = *gdbstub_port->_control; /* permit level 0 IRQs only */ - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); } /* diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c index a5fc3f05309b..b169d99d9f20 100644 --- a/arch/mn10300/kernel/gdb-stub.c +++ b/arch/mn10300/kernel/gdb-stub.c @@ -1194,7 +1194,8 @@ static int gdbstub(struct pt_regs *regs, enum exception_code excep) asm volatile("mov mdr,%0" : "=d"(mdr)); local_save_flags(epsw); - local_change_intr_mask_level(NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); + arch_local_change_intr_mask_level( + NUM2EPSW_IM(CONFIG_GDBSTUB_IRQ_LEVEL + 1)); gdbstub_store_fpu(); diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 5024f643b3b1..d7d94b845dc2 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -75,9 +75,6 @@ static void cpu_unmask_irq(unsigned int irq) smp_send_all_nop(); } -void no_ack_irq(unsigned int irq) { } -void no_end_irq(unsigned int irq) { } - void cpu_ack_irq(unsigned int irq) { unsigned long mask = EIEM_MASK(irq); @@ -241,7 +238,7 @@ int cpu_claim_irq(unsigned int irq, struct irq_chip *type, void *data) /* for iosapic interrupts */ if (type) { - set_irq_chip_and_handler(irq, type, handle_level_irq); + set_irq_chip_and_handler(irq, type, handle_percpu_irq); set_irq_chip_data(irq, data); cpu_unmask_irq(irq); } @@ -392,7 +389,7 @@ static void claim_cpu_irqs(void) int i; for (i = CPU_IRQ_BASE; i <= CPU_IRQ_MAX; i++) { set_irq_chip_and_handler(i, &cpu_interrupt_type, - handle_level_irq); + handle_percpu_irq); } set_irq_handler(TIMER_IRQ, handle_percpu_irq); diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index 35c827e94e31..609a331878e7 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -98,7 +98,6 @@ void sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) { struct rt_sigframe __user *frame; - struct siginfo si; sigset_t set; unsigned long usp = (regs->gr[30] & ~(0x01UL)); unsigned long sigframe_size = PARISC_RT_SIGFRAME_SIZE; @@ -178,13 +177,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall) give_sigsegv: DBG(1,"sys_rt_sigreturn: Sending SIGSEGV\n"); - si.si_signo = SIGSEGV; - si.si_errno = 0; - si.si_code = SI_KERNEL; - si.si_pid = task_pid_vnr(current); - si.si_uid = current_uid(); - si.si_addr = &frame->uc; - force_sig_info(SIGSEGV, &si, current); + force_sig(SIGSEGV, current); return; } diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 56c8687b29b3..7eff9b7347c0 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -19,6 +19,7 @@ #include <linux/kernel_stat.h> #include <linux/rcupdate.h> #include <linux/posix-timers.h> +#include <linux/cpu.h> #include <asm/s390_ext.h> #include <asm/timer.h> @@ -566,6 +567,23 @@ void init_cpu_vtimer(void) __ctl_set_bit(0,10); } +static int __cpuinit s390_nohz_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + struct s390_idle_data *idle; + long cpu = (long) hcpu; + + idle = &per_cpu(s390_idle, cpu); + switch (action) { + case CPU_DYING: + case CPU_DYING_FROZEN: + idle->nohz_delay = 0; + default: + break; + } + return NOTIFY_OK; +} + void __init vtime_init(void) { /* request the cpu timer external interrupt */ @@ -574,5 +592,6 @@ void __init vtime_init(void) /* Enable cpu timer interrupts on the boot cpu. */ init_cpu_vtimer(); + cpu_notifier(s390_nohz_notify, 0); } diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c index 2eaeb9e59585..f48c492a68d3 100644 --- a/arch/sh/boards/mach-ecovec24/setup.c +++ b/arch/sh/boards/mach-ecovec24/setup.c @@ -720,32 +720,6 @@ static struct platform_device camera_devices[] = { }; /* FSI */ -/* - * FSI-B use external clock which came from da7210. - * So, we should change parent of fsi - */ -#define FCLKBCR 0xa415000c -static void fsimck_init(struct clk *clk) -{ - u32 status = __raw_readl(clk->enable_reg); - - /* use external clock */ - status &= ~0x000000ff; - status |= 0x00000080; - - __raw_writel(status, clk->enable_reg); -} - -static struct clk_ops fsimck_clk_ops = { - .init = fsimck_init, -}; - -static struct clk fsimckb_clk = { - .ops = &fsimck_clk_ops, - .enable_reg = (void __iomem *)FCLKBCR, - .rate = 0, /* unknown */ -}; - static struct sh_fsi_platform_info fsi_info = { .portb_flags = SH_FSI_BRS_INV | SH_FSI_OUT_SLAVE_MODE | @@ -1264,10 +1238,10 @@ static int __init arch_setup(void) /* change parent of FSI B */ clk = clk_get(NULL, "fsib_clk"); if (!IS_ERR(clk)) { - clk_register(&fsimckb_clk); - clk_set_parent(clk, &fsimckb_clk); - clk_set_rate(clk, 11000); - clk_set_rate(&fsimckb_clk, 11000); + /* 48kHz dummy clock was used to make sure 1/1 divide */ + clk_set_rate(&sh7724_fsimckb_clk, 48000); + clk_set_parent(clk, &sh7724_fsimckb_clk); + clk_set_rate(clk, 48000); clk_put(clk); } diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c index c31d228fdfc6..527a0cd956b5 100644 --- a/arch/sh/boards/mach-se/7724/setup.c +++ b/arch/sh/boards/mach-se/7724/setup.c @@ -283,31 +283,6 @@ static struct platform_device ceu1_device = { }; /* FSI */ -/* - * FSI-A use external clock which came from ak464x. - * So, we should change parent of fsi - */ -#define FCLKACR 0xa4150008 -static void fsimck_init(struct clk *clk) -{ - u32 status = __raw_readl(clk->enable_reg); - - /* use external clock */ - status &= ~0x000000ff; - status |= 0x00000080; - __raw_writel(status, clk->enable_reg); -} - -static struct clk_ops fsimck_clk_ops = { - .init = fsimck_init, -}; - -static struct clk fsimcka_clk = { - .ops = &fsimck_clk_ops, - .enable_reg = (void __iomem *)FCLKACR, - .rate = 0, /* unknown */ -}; - /* change J20, J21, J22 pin to 1-2 connection to use slave mode */ static struct sh_fsi_platform_info fsi_info = { .porta_flags = SH_FSI_BRS_INV | @@ -852,37 +827,29 @@ static int __init devices_setup(void) gpio_request(GPIO_FN_KEYOUT0, NULL); /* enable FSI */ - gpio_request(GPIO_FN_FSIMCKB, NULL); gpio_request(GPIO_FN_FSIMCKA, NULL); + gpio_request(GPIO_FN_FSIIASD, NULL); gpio_request(GPIO_FN_FSIOASD, NULL); gpio_request(GPIO_FN_FSIIABCK, NULL); gpio_request(GPIO_FN_FSIIALRCK, NULL); gpio_request(GPIO_FN_FSIOABCK, NULL); gpio_request(GPIO_FN_FSIOALRCK, NULL); gpio_request(GPIO_FN_CLKAUDIOAO, NULL); - gpio_request(GPIO_FN_FSIIBSD, NULL); - gpio_request(GPIO_FN_FSIOBSD, NULL); - gpio_request(GPIO_FN_FSIIBBCK, NULL); - gpio_request(GPIO_FN_FSIIBLRCK, NULL); - gpio_request(GPIO_FN_FSIOBBCK, NULL); - gpio_request(GPIO_FN_FSIOBLRCK, NULL); - gpio_request(GPIO_FN_CLKAUDIOBO, NULL); - gpio_request(GPIO_FN_FSIIASD, NULL); /* set SPU2 clock to 83.4 MHz */ clk = clk_get(NULL, "spu_clk"); - if (clk) { + if (!IS_ERR(clk)) { clk_set_rate(clk, clk_round_rate(clk, 83333333)); clk_put(clk); } /* change parent of FSI A */ clk = clk_get(NULL, "fsia_clk"); - if (clk) { - clk_register(&fsimcka_clk); - clk_set_parent(clk, &fsimcka_clk); - clk_set_rate(clk, 11000); - clk_set_rate(&fsimcka_clk, 11000); + if (!IS_ERR(clk)) { + /* 48kHz dummy clock was used to make sure 1/1 divide */ + clk_set_rate(&sh7724_fsimcka_clk, 48000); + clk_set_parent(clk, &sh7724_fsimcka_clk); + clk_set_rate(clk, 48000); clk_put(clk); } diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h index 1f4e562c5e8c..82e1eabeac98 100644 --- a/arch/sh/include/asm/cacheflush.h +++ b/arch/sh/include/asm/cacheflush.h @@ -96,7 +96,7 @@ void kmap_coherent_init(void); void *kmap_coherent(struct page *page, unsigned long addr); void kunmap_coherent(void *kvaddr); -#define PG_dcache_dirty PG_arch_1 +#define PG_dcache_clean PG_arch_1 void cpu_cache_init(void); diff --git a/arch/sh/include/cpu-sh4/cpu/sh7724.h b/arch/sh/include/cpu-sh4/cpu/sh7724.h index 4c27b68789b3..7eb435999426 100644 --- a/arch/sh/include/cpu-sh4/cpu/sh7724.h +++ b/arch/sh/include/cpu-sh4/cpu/sh7724.h @@ -303,4 +303,7 @@ enum { SHDMA_SLAVE_SDHI1_RX, }; +extern struct clk sh7724_fsimcka_clk; +extern struct clk sh7724_fsimckb_clk; + #endif /* __ASM_SH7724_H__ */ diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c index 0fe2e9329cb2..271c0b325a9a 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c @@ -111,12 +111,21 @@ static struct clk div3_clk = { .parent = &pll_clk, }; +/* External input clock (pin name: FSIMCKA/FSIMCKB ) */ +struct clk sh7724_fsimcka_clk = { +}; + +struct clk sh7724_fsimckb_clk = { +}; + static struct clk *main_clks[] = { &r_clk, &extal_clk, &fll_clk, &pll_clk, &div3_clk, + &sh7724_fsimcka_clk, + &sh7724_fsimckb_clk, }; static void div4_kick(struct clk *clk) @@ -154,16 +163,38 @@ struct clk div4_clks[DIV4_NR] = { [DIV4_M1] = DIV4(FRQCRB, 4, 0x2f7c, CLK_ENABLE_ON_INIT), }; -enum { DIV6_V, DIV6_FA, DIV6_FB, DIV6_I, DIV6_S, DIV6_NR }; +enum { DIV6_V, DIV6_I, DIV6_S, DIV6_NR }; static struct clk div6_clks[DIV6_NR] = { [DIV6_V] = SH_CLK_DIV6(&div3_clk, VCLKCR, 0), - [DIV6_FA] = SH_CLK_DIV6(&div3_clk, FCLKACR, 0), - [DIV6_FB] = SH_CLK_DIV6(&div3_clk, FCLKBCR, 0), [DIV6_I] = SH_CLK_DIV6(&div3_clk, IRDACLKCR, 0), [DIV6_S] = SH_CLK_DIV6(&div3_clk, SPUCLKCR, CLK_ENABLE_ON_INIT), }; +enum { DIV6_FA, DIV6_FB, DIV6_REPARENT_NR }; + +/* Indices are important - they are the actual src selecting values */ +static struct clk *fclkacr_parent[] = { + [0] = &div3_clk, + [1] = NULL, + [2] = &sh7724_fsimcka_clk, + [3] = NULL, +}; + +static struct clk *fclkbcr_parent[] = { + [0] = &div3_clk, + [1] = NULL, + [2] = &sh7724_fsimckb_clk, + [3] = NULL, +}; + +static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = { + [DIV6_FA] = SH_CLK_DIV6_EXT(&div3_clk, FCLKACR, 0, + fclkacr_parent, ARRAY_SIZE(fclkacr_parent), 6, 2), + [DIV6_FB] = SH_CLK_DIV6_EXT(&div3_clk, FCLKBCR, 0, + fclkbcr_parent, ARRAY_SIZE(fclkbcr_parent), 6, 2), +}; + static struct clk mstp_clks[HWBLK_NR] = { SH_HWBLK_CLK(HWBLK_TLB, &div4_clks[DIV4_I], CLK_ENABLE_ON_INIT), SH_HWBLK_CLK(HWBLK_IC, &div4_clks[DIV4_I], CLK_ENABLE_ON_INIT), @@ -240,8 +271,8 @@ static struct clk_lookup lookups[] = { /* DIV6 clocks */ CLKDEV_CON_ID("video_clk", &div6_clks[DIV6_V]), - CLKDEV_CON_ID("fsia_clk", &div6_clks[DIV6_FA]), - CLKDEV_CON_ID("fsib_clk", &div6_clks[DIV6_FB]), + CLKDEV_CON_ID("fsia_clk", &div6_reparent_clks[DIV6_FA]), + CLKDEV_CON_ID("fsib_clk", &div6_reparent_clks[DIV6_FB]), CLKDEV_CON_ID("irda_clk", &div6_clks[DIV6_I]), CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_S]), @@ -376,6 +407,9 @@ int __init arch_clk_init(void) ret = sh_clk_div6_register(div6_clks, DIV6_NR); if (!ret) + ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR); + + if (!ret) ret = sh_hwblk_clk_register(mstp_clks, HWBLK_NR); return ret; diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 2cfae81914aa..92eb98633ab0 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c @@ -114,7 +114,7 @@ static void sh4_flush_dcache_page(void *arg) struct address_space *mapping = page_mapping(page); if (mapping && !mapping_mapped(mapping)) - set_bit(PG_dcache_dirty, &page->flags); + clear_bit(PG_dcache_clean, &page->flags); else #endif flush_cache_one(CACHE_OC_ADDRESS_ARRAY | @@ -239,7 +239,7 @@ static void sh4_flush_cache_page(void *args) * another ASID than the current one. */ map_coherent = (current_cpu_data.dcache.n_aliases && - !test_bit(PG_dcache_dirty, &page->flags) && + test_bit(PG_dcache_clean, &page->flags) && page_mapped(page)); if (map_coherent) vaddr = kmap_coherent(page, address); diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index f498da1cce7a..7729cca727eb 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c @@ -139,7 +139,7 @@ static void sh7705_flush_dcache_page(void *arg) struct address_space *mapping = page_mapping(page); if (mapping && !mapping_mapped(mapping)) - set_bit(PG_dcache_dirty, &page->flags); + clear_bit(PG_dcache_clean, &page->flags); else __flush_dcache_page(__pa(page_address(page))); } diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c index ba401d137bb9..88d3dc3d30d5 100644 --- a/arch/sh/mm/cache.c +++ b/arch/sh/mm/cache.c @@ -60,14 +60,14 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long len) { if (boot_cpu_data.dcache.n_aliases && page_mapped(page) && - !test_bit(PG_dcache_dirty, &page->flags)) { + test_bit(PG_dcache_clean, &page->flags)) { void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(vto, src, len); kunmap_coherent(vto); } else { memcpy(dst, src, len); if (boot_cpu_data.dcache.n_aliases) - set_bit(PG_dcache_dirty, &page->flags); + clear_bit(PG_dcache_clean, &page->flags); } if (vma->vm_flags & VM_EXEC) @@ -79,14 +79,14 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page, unsigned long len) { if (boot_cpu_data.dcache.n_aliases && page_mapped(page) && - !test_bit(PG_dcache_dirty, &page->flags)) { + test_bit(PG_dcache_clean, &page->flags)) { void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); kunmap_coherent(vfrom); } else { memcpy(dst, src, len); if (boot_cpu_data.dcache.n_aliases) - set_bit(PG_dcache_dirty, &page->flags); + clear_bit(PG_dcache_clean, &page->flags); } } @@ -98,7 +98,7 @@ void copy_user_highpage(struct page *to, struct page *from, vto = kmap_atomic(to, KM_USER1); if (boot_cpu_data.dcache.n_aliases && page_mapped(from) && - !test_bit(PG_dcache_dirty, &from->flags)) { + test_bit(PG_dcache_clean, &from->flags)) { vfrom = kmap_coherent(from, vaddr); copy_page(vto, vfrom); kunmap_coherent(vfrom); @@ -141,7 +141,7 @@ void __update_cache(struct vm_area_struct *vma, page = pfn_to_page(pfn); if (pfn_valid(pfn)) { - int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags); + int dirty = !test_and_set_bit(PG_dcache_clean, &page->flags); if (dirty) __flush_purge_region(page_address(page), PAGE_SIZE); } @@ -153,7 +153,7 @@ void __flush_anon_page(struct page *page, unsigned long vmaddr) if (pages_do_alias(addr, vmaddr)) { if (boot_cpu_data.dcache.n_aliases && page_mapped(page) && - !test_bit(PG_dcache_dirty, &page->flags)) { + test_bit(PG_dcache_clean, &page->flags)) { void *kaddr; kaddr = kmap_coherent(page, vmaddr); diff --git a/arch/sh/mm/kmap.c b/arch/sh/mm/kmap.c index 15d74ea42094..ec29e14ec5a8 100644 --- a/arch/sh/mm/kmap.c +++ b/arch/sh/mm/kmap.c @@ -34,7 +34,7 @@ void *kmap_coherent(struct page *page, unsigned long addr) enum fixed_addresses idx; unsigned long vaddr; - BUG_ON(test_bit(PG_dcache_dirty, &page->flags)); + BUG_ON(!test_bit(PG_dcache_clean, &page->flags)); pagefault_disable(); diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h index 7f7e577a0e39..31d84acc1512 100644 --- a/arch/x86/include/asm/pvclock.h +++ b/arch/x86/include/asm/pvclock.h @@ -11,6 +11,7 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src); void pvclock_read_wallclock(struct pvclock_wall_clock *wall, struct pvclock_vcpu_time_info *vcpu, struct timespec *ts); +void pvclock_resume(void); /* * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction, diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 008b91eefa18..42eb3300dfc6 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -83,6 +83,11 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src) static atomic64_t last_value = ATOMIC64_INIT(0); +void pvclock_resume(void) +{ + atomic64_set(&last_value, 0); +} + cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) { struct pvclock_shadow_time shadow; diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index d7b5109f7a9c..25cd4a07d09f 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -70,6 +70,9 @@ static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi, struct xen_pci_frontend_ops *xen_pci_frontend; EXPORT_SYMBOL_GPL(xen_pci_frontend); +#define XEN_PIRQ_MSI_DATA (MSI_DATA_TRIGGER_EDGE | \ + MSI_DATA_LEVEL_ASSERT | (3 << 8) | MSI_DATA_VECTOR(0)) + static void xen_msi_compose_msg(struct pci_dev *pdev, unsigned int pirq, struct msi_msg *msg) { @@ -83,12 +86,7 @@ static void xen_msi_compose_msg(struct pci_dev *pdev, unsigned int pirq, MSI_ADDR_REDIRECTION_CPU | MSI_ADDR_DEST_ID(pirq); - msg->data = - MSI_DATA_TRIGGER_EDGE | - MSI_DATA_LEVEL_ASSERT | - /* delivery mode reserved */ - (3 << 8) | - MSI_DATA_VECTOR(0); + msg->data = XEN_PIRQ_MSI_DATA; } static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) @@ -98,8 +96,23 @@ static int xen_hvm_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) struct msi_msg msg; list_for_each_entry(msidesc, &dev->msi_list, list) { + __read_msi_msg(msidesc, &msg); + pirq = MSI_ADDR_EXT_DEST_ID(msg.address_hi) | + ((msg.address_lo >> MSI_ADDR_DEST_ID_SHIFT) & 0xff); + if (xen_irq_from_pirq(pirq) >= 0 && msg.data == XEN_PIRQ_MSI_DATA) { + xen_allocate_pirq_msi((type == PCI_CAP_ID_MSIX) ? + "msi-x" : "msi", &irq, &pirq, XEN_ALLOC_IRQ); + if (irq < 0) + goto error; + ret = set_irq_msi(irq, msidesc); + if (ret < 0) + goto error_while; + printk(KERN_DEBUG "xen: msi already setup: msi --> irq=%d" + " pirq=%d\n", irq, pirq); + return 0; + } xen_allocate_pirq_msi((type == PCI_CAP_ID_MSIX) ? - "msi-x" : "msi", &irq, &pirq); + "msi-x" : "msi", &irq, &pirq, (XEN_ALLOC_IRQ | XEN_ALLOC_PIRQ)); if (irq < 0 || pirq < 0) goto error; printk(KERN_DEBUG "xen: msi --> irq=%d, pirq=%d\n", irq, pirq); diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 02c710bebf7a..44dcad43989d 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1021,10 +1021,6 @@ static void xen_reboot(int reason) { struct sched_shutdown r = { .reason = reason }; -#ifdef CONFIG_SMP - stop_other_cpus(); -#endif - if (HYPERVISOR_sched_op(SCHEDOP_shutdown, &r)) BUG(); } diff --git a/arch/x86/xen/platform-pci-unplug.c b/arch/x86/xen/platform-pci-unplug.c index 0f456386cce5..25c52f94a27c 100644 --- a/arch/x86/xen/platform-pci-unplug.c +++ b/arch/x86/xen/platform-pci-unplug.c @@ -68,7 +68,7 @@ static int __init check_platform_magic(void) return 0; } -void __init xen_unplug_emulated_devices(void) +void xen_unplug_emulated_devices(void) { int r; diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c index 01afd8a94607..b5a7f928234b 100644 --- a/arch/x86/xen/setup.c +++ b/arch/x86/xen/setup.c @@ -181,24 +181,21 @@ char * __init xen_memory_setup(void) for (i = 0; i < memmap.nr_entries; i++) { unsigned long long end = map[i].addr + map[i].size; - if (map[i].type == E820_RAM) { - if (map[i].addr < mem_end && end > mem_end) { - /* Truncate region to max_mem. */ - u64 delta = end - mem_end; + if (map[i].type == E820_RAM && end > mem_end) { + /* RAM off the end - may be partially included */ + u64 delta = min(map[i].size, end - mem_end); - map[i].size -= delta; - extra_pages += PFN_DOWN(delta); + map[i].size -= delta; + end -= delta; - end = mem_end; - } + extra_pages += PFN_DOWN(delta); } - if (end > xen_extra_mem_start) + if (map[i].size > 0 && end > xen_extra_mem_start) xen_extra_mem_start = end; - /* If region is non-RAM or below mem_end, add what remains */ - if ((map[i].type != E820_RAM || map[i].addr < mem_end) && - map[i].size > 0) + /* Add region if any remains */ + if (map[i].size > 0) e820_add_region(map[i].addr, map[i].size, map[i].type); } @@ -252,20 +249,6 @@ char * __init xen_memory_setup(void) return "Xen"; } -static void xen_idle(void) -{ - local_irq_disable(); - - if (need_resched()) - local_irq_enable(); - else { - current_thread_info()->status &= ~TS_POLLING; - smp_mb__after_clear_bit(); - safe_halt(); - current_thread_info()->status |= TS_POLLING; - } -} - /* * Set the bit indicating "nosegneg" library variants should be used. * We only need to bother in pure 32-bit mode; compat 32-bit processes @@ -362,7 +345,11 @@ void __init xen_arch_setup(void) MAX_GUEST_CMDLINE > COMMAND_LINE_SIZE ? COMMAND_LINE_SIZE : MAX_GUEST_CMDLINE); - pm_idle = xen_idle; + /* Set up idle, making sure it calls safe_halt() pvop */ +#ifdef CONFIG_X86_32 + boot_cpu_data.hlt_works_ok = 1; +#endif + pm_idle = default_idle; fiddle_vdso(); } diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c index 1d789d56877c..9bbd63a129b5 100644 --- a/arch/x86/xen/suspend.c +++ b/arch/x86/xen/suspend.c @@ -31,6 +31,7 @@ void xen_hvm_post_suspend(int suspend_cancelled) int cpu; xen_hvm_init_shared_info(); xen_callback_vector(); + xen_unplug_emulated_devices(); if (xen_feature(XENFEAT_hvm_safe_pvclock)) { for_each_online_cpu(cpu) { xen_setup_runstate_info(cpu); diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index b2bb5aa3b054..5da5e53fb94c 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -426,6 +426,8 @@ void xen_timer_resume(void) { int cpu; + pvclock_resume(); + if (xen_clockevent != &xen_vcpuop_clockevent) return; diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 64044747348e..9d41bf985757 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -43,7 +43,7 @@ void xen_vcpu_restore(void); void xen_callback_vector(void); void xen_hvm_init_shared_info(void); -void __init xen_unplug_emulated_devices(void); +void xen_unplug_emulated_devices(void); void __init xen_build_dynamic_phys_to_machine(void); |