diff options
Diffstat (limited to 'arch')
47 files changed, 192 insertions, 164 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 88c97bc..9c26ba7 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1101,6 +1101,20 @@ config ARM_ERRATA_720789 invalidated are not, resulting in an incoherency in the system page tables. The workaround changes the TLB flushing routines to invalidate entries regardless of the ASID. + +config ARM_ERRATA_743622 + bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption" + depends on CPU_V7 + help + This option enables the workaround for the 743622 Cortex-A9 + (r2p0..r2p2) erratum. Under very rare conditions, a faulty + optimisation in the Cortex-A9 Store Buffer may lead to data + corruption. This workaround sets a specific bit in the diagnostic + register of the Cortex-A9 which disables the Store Buffer + optimisation, preventing the defect from occurring. This has no + visible impact on the overall performance or power consumption of the + processor. + endmenu source "arch/arm/common/Kconfig" diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c index 8bccbfa..2c1f005 100644 --- a/arch/arm/kernel/kprobes-decode.c +++ b/arch/arm/kernel/kprobes-decode.c @@ -1162,11 +1162,12 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi) { /* * MSR : cccc 0011 0x10 xxxx xxxx xxxx xxxx xxxx - * Undef : cccc 0011 0x00 xxxx xxxx xxxx xxxx xxxx + * Undef : cccc 0011 0100 xxxx xxxx xxxx xxxx xxxx * ALU op with S bit and Rd == 15 : * cccc 001x xxx1 xxxx 1111 xxxx xxxx xxxx */ - if ((insn & 0x0f900000) == 0x03200000 || /* MSR & Undef */ + if ((insn & 0x0fb00000) == 0x03200000 || /* MSR */ + (insn & 0x0ff00000) == 0x03400000 || /* Undef */ (insn & 0x0e10f000) == 0x0210f000) /* ALU s-bit, R15 */ return INSN_REJECTED; @@ -1177,7 +1178,7 @@ space_cccc_001x(kprobe_opcode_t insn, struct arch_specific_insn *asi) * *S (bit 20) updates condition codes * ADC/SBC/RSC reads the C flag */ - insn &= 0xfff00fff; /* Rn = r0, Rd = r0 */ + insn &= 0xffff0fff; /* Rd = r0 */ asi->insn[0] = insn; asi->insn_handler = (insn & (1 << 20)) ? /* S-bit */ emulate_alu_imm_rwflags : emulate_alu_imm_rflags; diff --git a/arch/arm/mach-at91/include/mach/system.h b/arch/arm/mach-at91/include/mach/system.h index c80e090..ee8db15 100644 --- a/arch/arm/mach-at91/include/mach/system.h +++ b/arch/arm/mach-at91/include/mach/system.h @@ -28,17 +28,16 @@ static inline void arch_idle(void) { -#ifndef CONFIG_DEBUG_KERNEL /* * Disable the processor clock. The processor will be automatically * re-enabled by an interrupt or by a reset. */ at91_sys_write(AT91_PMC_SCDR, AT91_PMC_PCK); -#else +#ifndef CONFIG_CPU_ARM920T /* * Set the processor (CP15) into 'Wait for Interrupt' mode. - * Unlike disabling the processor clock via the PMC (above) - * this allows the processor to be woken via JTAG. + * Post-RM9200 processors need this in conjunction with the above + * to save power when idle. */ cpu_do_idle(); #endif diff --git a/arch/arm/mach-ep93xx/dma-m2p.c b/arch/arm/mach-ep93xx/dma-m2p.c index 8904ca4..a696d35 100644 --- a/arch/arm/mach-ep93xx/dma-m2p.c +++ b/arch/arm/mach-ep93xx/dma-m2p.c @@ -276,7 +276,7 @@ static void channel_disable(struct m2p_channel *ch) v &= ~(M2P_CONTROL_STALL_IRQ_EN | M2P_CONTROL_NFB_IRQ_EN); m2p_set_control(ch, v); - while (m2p_channel_state(ch) == STATE_ON) + while (m2p_channel_state(ch) >= STATE_ON) cpu_relax(); m2p_set_control(ch, 0x0); diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index c5c0369..2f7e272 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -122,6 +122,7 @@ config MACH_CPUIMX27 select IMX_HAVE_PLATFORM_IMX_I2C select IMX_HAVE_PLATFORM_IMX_UART select IMX_HAVE_PLATFORM_MXC_NAND + select MXC_ULPI if USB_ULPI help Include support for Eukrea CPUIMX27 platform. This includes specific configurations for the module and its peripherals. diff --git a/arch/arm/mach-imx/mach-cpuimx27.c b/arch/arm/mach-imx/mach-cpuimx27.c index 339150a..6830afd 100644 --- a/arch/arm/mach-imx/mach-cpuimx27.c +++ b/arch/arm/mach-imx/mach-cpuimx27.c @@ -259,7 +259,7 @@ static void __init eukrea_cpuimx27_init(void) i2c_register_board_info(0, eukrea_cpuimx27_i2c_devices, ARRAY_SIZE(eukrea_cpuimx27_i2c_devices)); - imx27_add_i2c_imx1(&cpuimx27_i2c1_data); + imx27_add_i2c_imx0(&cpuimx27_i2c1_data); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); diff --git a/arch/arm/mach-s5p6440/cpu.c b/arch/arm/mach-s5p6440/cpu.c index 526f33a..ec592e8 100644 --- a/arch/arm/mach-s5p6440/cpu.c +++ b/arch/arm/mach-s5p6440/cpu.c @@ -19,6 +19,7 @@ #include <linux/sysdev.h> #include <linux/serial_core.h> #include <linux/platform_device.h> +#include <linux/sched.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> diff --git a/arch/arm/mach-s5p6442/cpu.c b/arch/arm/mach-s5p6442/cpu.c index a48fb55..70ac681 100644 --- a/arch/arm/mach-s5p6442/cpu.c +++ b/arch/arm/mach-s5p6442/cpu.c @@ -19,6 +19,7 @@ #include <linux/sysdev.h> #include <linux/serial_core.h> #include <linux/platform_device.h> +#include <linux/sched.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> diff --git a/arch/arm/mach-s5pc100/cpu.c b/arch/arm/mach-s5pc100/cpu.c index 251c92a..cd1afbc 100644 --- a/arch/arm/mach-s5pc100/cpu.c +++ b/arch/arm/mach-s5pc100/cpu.c @@ -21,6 +21,7 @@ #include <linux/sysdev.h> #include <linux/serial_core.h> #include <linux/platform_device.h> +#include <linux/sched.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c index cfecd70..d562670 100644 --- a/arch/arm/mach-s5pv210/clock.c +++ b/arch/arm/mach-s5pv210/clock.c @@ -173,11 +173,6 @@ static int s5pv210_clk_ip3_ctrl(struct clk *clk, int enable) return s5p_gatectrl(S5P_CLKGATE_IP3, clk, enable); } -static int s5pv210_clk_ip4_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P_CLKGATE_IP4, clk, enable); -} - static int s5pv210_clk_mask0_ctrl(struct clk *clk, int enable) { return s5p_gatectrl(S5P_CLK_SRC_MASK0, clk, enable); diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c index 77f456c..245b82b 100644 --- a/arch/arm/mach-s5pv210/cpu.c +++ b/arch/arm/mach-s5pv210/cpu.c @@ -19,6 +19,7 @@ #include <linux/io.h> #include <linux/sysdev.h> #include <linux/platform_device.h> +#include <linux/sched.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c index efb1270..71fb173 100644 --- a/arch/arm/mach-vexpress/ct-ca9x4.c +++ b/arch/arm/mach-vexpress/ct-ca9x4.c @@ -68,7 +68,7 @@ static void __init ct_ca9x4_init_irq(void) } #if 0 -static void ct_ca9x4_timer_init(void) +static void __init ct_ca9x4_timer_init(void) { writel(0, MMIO_P2V(CT_CA9X4_TIMER0) + TIMER_CTRL); writel(0, MMIO_P2V(CT_CA9X4_TIMER1) + TIMER_CTRL); @@ -222,7 +222,7 @@ static struct platform_device pmu_device = { .resource = pmu_resources, }; -static void ct_ca9x4_init(void) +static void __init ct_ca9x4_init(void) { int i; diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 817f0ad..7eaa232 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -48,7 +48,7 @@ void __init v2m_map_io(struct map_desc *tile, size_t num) } -static void v2m_timer_init(void) +static void __init v2m_timer_init(void) { writel(0, MMIO_P2V(V2M_TIMER0) + TIMER_CTRL); writel(0, MMIO_P2V(V2M_TIMER1) + TIMER_CTRL); diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index ab50627..17e7b0b 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -204,8 +204,12 @@ void __iomem * __arm_ioremap_pfn_caller(unsigned long pfn, /* * Don't allow RAM to be mapped - this causes problems with ARMv6+ */ - if (WARN_ON(pfn_valid(pfn))) - return NULL; + if (pfn_valid(pfn)) { + printk(KERN_WARNING "BUG: Your driver calls ioremap() on system memory. This leads\n" + KERN_WARNING "to architecturally unpredictable behaviour on ARMv6+, and ioremap()\n" + KERN_WARNING "will fail in the next kernel release. Please fix your driver.\n"); + WARN_ON(1); + } type = get_mem_type(mtype); if (!type) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 6a3a2d0..e8ed9dc 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -248,7 +248,7 @@ static struct mem_type mem_types[] = { }, [MT_MEMORY] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | - L_PTE_USER | L_PTE_EXEC, + L_PTE_WRITE | L_PTE_EXEC, .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, .domain = DOMAIN_KERNEL, @@ -259,7 +259,7 @@ static struct mem_type mem_types[] = { }, [MT_MEMORY_NONCACHED] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | - L_PTE_USER | L_PTE_EXEC | L_PTE_MT_BUFFERABLE, + L_PTE_WRITE | L_PTE_EXEC | L_PTE_MT_BUFFERABLE, .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, .domain = DOMAIN_KERNEL, diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 7563ff0..197f21b 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -253,6 +253,14 @@ __v7_setup: orreq r10, r10, #1 << 22 @ set bit #22 mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register #endif +#ifdef CONFIG_ARM_ERRATA_743622 + teq r6, #0x20 @ present in r2p0 + teqne r6, #0x21 @ present in r2p1 + teqne r6, #0x22 @ present in r2p2 + mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register + orreq r10, r10, #1 << 6 @ set bit #6 + mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register +#endif 3: mov r10, #0 #ifdef HARVARD_CACHE @@ -365,7 +373,7 @@ __v7_ca9mp_proc_info: b __v7_ca9mp_setup .long cpu_arch_name .long cpu_elf_name - .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP + .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP|HWCAP_TLS .long cpu_v7_name .long v7_processor_functions .long v7wbi_tlb_fns diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c index a202a2c..6cd151b 100644 --- a/arch/arm/plat-omap/iommu.c +++ b/arch/arm/plat-omap/iommu.c @@ -320,6 +320,7 @@ void flush_iotlb_page(struct iommu *obj, u32 da) if ((start <= da) && (da < start + bytes)) { dev_dbg(obj->dev, "%s: %08x<=%08x(%x)\n", __func__, start, da, bytes); + iotlb_load_cr(obj, &cr); iommu_write_reg(obj, 1, MMU_FLUSH_ENTRY); } } diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index 04d9521..e8f2be2 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -435,7 +435,6 @@ static int s3c_adc_suspend(struct platform_device *pdev, pm_message_t state) static int s3c_adc_resume(struct platform_device *pdev) { struct adc_device *adc = platform_get_drvdata(pdev); - unsigned long flags; clk_enable(adc->clk); enable_irq(adc->irq); diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c index 90a2051..e8d20b0 100644 --- a/arch/arm/plat-samsung/clock.c +++ b/arch/arm/plat-samsung/clock.c @@ -48,6 +48,9 @@ #include <plat/clock.h> #include <plat/cpu.h> +#include <linux/serial_core.h> +#include <plat/regs-serial.h> /* for s3c24xx_uart_devs */ + /* clock information */ static LIST_HEAD(clocks); @@ -65,6 +68,28 @@ static int clk_null_enable(struct clk *clk, int enable) return 0; } +static int dev_is_s3c_uart(struct device *dev) +{ + struct platform_device **pdev = s3c24xx_uart_devs; + int i; + for (i = 0; i < ARRAY_SIZE(s3c24xx_uart_devs); i++, pdev++) + if (*pdev && dev == &(*pdev)->dev) + return 1; + return 0; +} + +/* + * Serial drivers call get_clock() very early, before platform bus + * has been set up, this requires a special check to let them get + * a proper clock + */ + +static int dev_is_platform_device(struct device *dev) +{ + return dev->bus == &platform_bus_type || + (dev->bus == NULL && dev_is_s3c_uart(dev)); +} + /* Clock API calls */ struct clk *clk_get(struct device *dev, const char *id) @@ -73,7 +98,7 @@ struct clk *clk_get(struct device *dev, const char *id) struct clk *clk = ERR_PTR(-ENOENT); int idno; - if (dev == NULL || dev->bus != &platform_bus_type) + if (dev == NULL || !dev_is_platform_device(dev)) idno = -1; else idno = to_platform_device(dev)->id; diff --git a/arch/m32r/include/asm/elf.h b/arch/m32r/include/asm/elf.h index 2f85412..b8da7d0 100644 --- a/arch/m32r/include/asm/elf.h +++ b/arch/m32r/include/asm/elf.h @@ -82,9 +82,9 @@ typedef elf_fpreg_t elf_fpregset_t; * These are used to set parameters in the core dumps. */ #define ELF_CLASS ELFCLASS32 -#if defined(__LITTLE_ENDIAN) +#if defined(__LITTLE_ENDIAN__) #define ELF_DATA ELFDATA2LSB -#elif defined(__BIG_ENDIAN) +#elif defined(__BIG_ENDIAN__) #define ELF_DATA ELFDATA2MSB #else #error no endian defined diff --git a/arch/m32r/kernel/.gitignore b/arch/m32r/kernel/.gitignore new file mode 100644 index 0000000..c5f676c --- /dev/null +++ b/arch/m32r/kernel/.gitignore @@ -0,0 +1 @@ +vmlinux.lds diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c index 7bbe386..a08697f 100644 --- a/arch/m32r/kernel/signal.c +++ b/arch/m32r/kernel/signal.c @@ -28,6 +28,8 @@ #define DEBUG_SIG 0 +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, unsigned long r2, unsigned long r3, unsigned long r4, @@ -254,7 +256,7 @@ give_sigsegv: static int prev_insn(struct pt_regs *regs) { u16 inst; - if (get_user(&inst, (u16 __user *)(regs->bpc - 2))) + if (get_user(inst, (u16 __user *)(regs->bpc - 2))) return -EFAULT; if ((inst & 0xfff0) == 0x10f0) /* trap ? */ regs->bpc -= 2; diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild index e322d65..7dd65cf 100644 --- a/arch/mips/Kbuild +++ b/arch/mips/Kbuild @@ -7,6 +7,10 @@ subdir-ccflags-y := -Werror include arch/mips/Kbuild.platforms obj-y := $(platform-y) +# make clean traverses $(obj-) without having included .config, so +# everything ends up here +obj- := $(platform-) + # mips object files # The object files are linked as core-y files would be linked diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 5526faa..4c9f402 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -881,11 +881,15 @@ config NO_IOPORT config GENERIC_ISA_DMA bool select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n + select ISA_DMA_API config GENERIC_ISA_DMA_SUPPORT_BROKEN bool select GENERIC_ISA_DMA +config ISA_DMA_API + bool + config GENERIC_GPIO bool diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index 5fd7f7a..5042d51 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -105,4 +105,4 @@ OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec vmlinuz.srec: vmlinuz $(call cmd,objcopy) -clean-files := $(objtree)/vmlinuz.* +clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec} diff --git a/arch/mips/dec/Platform b/arch/mips/dec/Platform index 3adbcbd..cf55a6f 100644 --- a/arch/mips/dec/Platform +++ b/arch/mips/dec/Platform @@ -1,7 +1,7 @@ # # DECstation family # -platform-$(CONFIG_MACH_DECSTATION) = dec/ +platform-$(CONFIG_MACH_DECSTATION) += dec/ cflags-$(CONFIG_MACH_DECSTATION) += \ -I$(srctree)/arch/mips/include/asm/mach-dec libs-$(CONFIG_MACH_DECSTATION) += arch/mips/dec/prom/ diff --git a/arch/mips/include/asm/fcntl.h b/arch/mips/include/asm/fcntl.h index e482fe9..75edded 100644 --- a/arch/mips/include/asm/fcntl.h +++ b/arch/mips/include/asm/fcntl.h @@ -56,6 +56,7 @@ */ #ifdef CONFIG_32BIT +#include <linux/types.h> struct flock { short l_type; diff --git a/arch/mips/include/asm/siginfo.h b/arch/mips/include/asm/siginfo.h index 96e28f1..1ca64b4 100644 --- a/arch/mips/include/asm/siginfo.h +++ b/arch/mips/include/asm/siginfo.h @@ -88,6 +88,7 @@ typedef struct siginfo { #ifdef __ARCH_SI_TRAPNO int _trapno; /* TRAP # which caused the signal */ #endif + short _addr_lsb; } _sigfault; /* SIGPOLL, SIGXFSZ (To do ...) */ diff --git a/arch/mips/jz4740/Platform b/arch/mips/jz4740/Platform index 6a97230..ba91be9 100644 --- a/arch/mips/jz4740/Platform +++ b/arch/mips/jz4740/Platform @@ -1,3 +1,3 @@ -core-$(CONFIG_MACH_JZ4740) += arch/mips/jz4740/ +platform-$(CONFIG_MACH_JZ4740) += jz4740/ cflags-$(CONFIG_MACH_JZ4740) += -I$(srctree)/arch/mips/include/asm/mach-jz4740 load-$(CONFIG_MACH_JZ4740) += 0xffffffff80010000 diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c index 0176ed0..32103cc 100644 --- a/arch/mips/kernel/branch.c +++ b/arch/mips/kernel/branch.c @@ -40,7 +40,6 @@ int __compute_return_epc(struct pt_regs *regs) return -EFAULT; } - regs->regs[0] = 0; switch (insn.i_format.opcode) { /* * jr and jalr are in r_format format. diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index c51b95f..c877733 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -536,7 +536,7 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) { /* do the secure computing check first */ if (!entryexit) - secure_computing(regs->regs[0]); + secure_computing(regs->regs[2]); if (unlikely(current->audit_context) && entryexit) audit_syscall_exit(AUDITSC_RESULT(regs->regs[2]), @@ -565,7 +565,7 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit) out: if (unlikely(current->audit_context) && !entryexit) - audit_syscall_entry(audit_arch(), regs->regs[0], + audit_syscall_entry(audit_arch(), regs->regs[2], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); } diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 584415e..fbaabad 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -63,9 +63,9 @@ stack_done: sw t0, PT_R7(sp) # set error flag beqz t0, 1f + lw t1, PT_R2(sp) # syscall number negu v0 # error - sw v0, PT_R0(sp) # set flag for syscall - # restarting + sw t1, PT_R0(sp) # save it for syscall restarting 1: sw v0, PT_R2(sp) # result o32_syscall_exit: @@ -104,9 +104,9 @@ syscall_trace_entry: sw t0, PT_R7(sp) # set error flag beqz t0, 1f + lw t1, PT_R2(sp) # syscall number negu v0 # error - sw v0, PT_R0(sp) # set flag for syscall - # restarting + sw t1, PT_R0(sp) # save it for syscall restarting 1: sw v0, PT_R2(sp) # result j syscall_exit @@ -169,8 +169,7 @@ stackargs: * We probably should handle this case a bit more drastic. */ bad_stack: - negu v0 # error - sw v0, PT_R0(sp) + li v0, EFAULT sw v0, PT_R2(sp) li t0, 1 # set error flag sw t0, PT_R7(sp) diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 5573f8e..3f41792 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -66,9 +66,9 @@ NESTED(handle_sys64, PT_SIZE, sp) sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall - # restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result n64_syscall_exit: @@ -109,8 +109,9 @@ syscall_trace_entry: sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result j syscall_exit diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 1e38ec9..f08ece6 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -65,8 +65,9 @@ NESTED(handle_sysn32, PT_SIZE, sp) sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result local_irq_disable # make sure need_resched and @@ -106,8 +107,9 @@ n32_syscall_trace_entry: sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result j syscall_exit @@ -320,10 +322,10 @@ EXPORT(sysn32_call_table) PTR sys_cacheflush PTR sys_cachectl PTR sys_sysmips - PTR sys_io_setup /* 6200 */ + PTR compat_sys_io_setup /* 6200 */ PTR sys_io_destroy - PTR sys_io_getevents - PTR sys_io_submit + PTR compat_sys_io_getevents + PTR compat_sys_io_submit PTR sys_io_cancel PTR sys_exit_group /* 6205 */ PTR sys_lookup_dcookie diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 171979f..78d768a 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -93,8 +93,9 @@ NESTED(handle_sys, PT_SIZE, sp) sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result o32_syscall_exit: @@ -142,8 +143,9 @@ trace_a_syscall: sd t0, PT_R7(sp) # set error flag beqz t0, 1f + ld t1, PT_R2(sp) # syscall number dnegu v0 # error - sd v0, PT_R0(sp) # set flag for syscall restarting + sd t1, PT_R0(sp) # save it for syscall restarting 1: sd v0, PT_R2(sp) # result j syscall_exit @@ -154,8 +156,7 @@ trace_a_syscall: * The stackpointer for a call with more than 4 arguments is bad. */ bad_stack: - dnegu v0 # error - sd v0, PT_R0(sp) + li v0, EFAULT sd v0, PT_R2(sp) li t0, 1 # set error flag sd t0, PT_R7(sp) @@ -444,10 +445,10 @@ sys_call_table: PTR compat_sys_futex PTR compat_sys_sched_setaffinity PTR compat_sys_sched_getaffinity /* 4240 */ - PTR sys_io_setup + PTR compat_sys_io_setup PTR sys_io_destroy - PTR sys_io_getevents - PTR sys_io_submit + PTR compat_sys_io_getevents + PTR compat_sys_io_submit PTR sys_io_cancel /* 4245 */ PTR sys_exit_group PTR sys32_lookup_dcookie diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 2099d5a..5922342 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -390,7 +390,6 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe __user *frame; sigset_t set; - stack_t st; int sig; frame = (struct rt_sigframe __user *) regs.regs[29]; @@ -411,11 +410,9 @@ asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) else if (sig) force_sig(sig, current); - if (__copy_from_user(&st, &frame->rs_uc.uc_stack, sizeof(st))) - goto badframe; /* It is more difficult to avoid calling this function than to call it and ignore errors. */ - do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]); + do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs.regs[29]); /* * Don't let your children do this ... @@ -550,23 +547,26 @@ static int handle_signal(unsigned long sig, siginfo_t *info, struct mips_abi *abi = current->thread.abi; void *vdso = current->mm->context.vdso; - switch(regs->regs[0]) { - case ERESTART_RESTARTBLOCK: - case ERESTARTNOHAND: - regs->regs[2] = EINTR; - break; - case ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { + if (regs->regs[0]) { + switch(regs->regs[2]) { + case ERESTART_RESTARTBLOCK: + case ERESTARTNOHAND: regs->regs[2] = EINTR; break; + case ERESTARTSYS: + if (!(ka->sa.sa_flags & SA_RESTART)) { + regs->regs[2] = EINTR; + break; + } + /* fallthrough */ + case ERESTARTNOINTR: + regs->regs[7] = regs->regs[26]; + regs->regs[2] = regs->regs[0]; + regs->cp0_epc -= 4; } - /* fallthrough */ - case ERESTARTNOINTR: /* Userland will reload $v0. */ - regs->regs[7] = regs->regs[26]; - regs->cp0_epc -= 8; - } - regs->regs[0] = 0; /* Don't deal with this again. */ + regs->regs[0] = 0; /* Don't deal with this again. */ + } if (sig_uses_siginfo(ka)) ret = abi->setup_rt_frame(vdso + abi->rt_signal_return_offset, @@ -575,6 +575,9 @@ static int handle_signal(unsigned long sig, siginfo_t *info, ret = abi->setup_frame(vdso + abi->signal_return_offset, ka, regs, sig, oldset); + 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)) @@ -622,17 +625,13 @@ static void do_signal(struct pt_regs *regs) return; } - /* - * Who's code doesn't conform to the restartable syscall convention - * dies here!!! The li instruction, a single machine instruction, - * must directly be followed by the syscall instruction. - */ if (regs->regs[0]) { if (regs->regs[2] == ERESTARTNOHAND || regs->regs[2] == ERESTARTSYS || regs->regs[2] == ERESTARTNOINTR) { + regs->regs[2] = regs->regs[0]; regs->regs[7] = regs->regs[26]; - regs->cp0_epc -= 8; + regs->cp0_epc -= 4; } if (regs->regs[2] == ERESTART_RESTARTBLOCK) { regs->regs[2] = current->thread.abi->restart; diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index 2c5df81..ee24d81 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -109,6 +109,7 @@ asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe_n32 __user *frame; + mm_segment_t old_fs; sigset_t set; stack_t st; s32 sp; @@ -143,7 +144,11 @@ asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) /* It is more difficult to avoid calling this function than to call it and ignore errors. */ + old_fs = get_fs(); + set_fs(KERNEL_DS); do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]); + set_fs(old_fs); + /* * Don't let your children do this ... diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index 69b039c..33d5a5c 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -109,8 +109,6 @@ static void emulate_load_store_insn(struct pt_regs *regs, unsigned long value; unsigned int res; - regs->regs[0] = 0; - /* * This load never faults. */ diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c index 0c46e39..63c740a 100644 --- a/arch/um/drivers/hostaudio_kern.c +++ b/arch/um/drivers/hostaudio_kern.c @@ -40,6 +40,11 @@ static char *mixer = HOSTAUDIO_DEV_MIXER; " This is used to specify the host mixer device to the hostaudio driver.\n"\ " The default is \"" HOSTAUDIO_DEV_MIXER "\".\n\n" +module_param(dsp, charp, 0644); +MODULE_PARM_DESC(dsp, DSP_HELP); +module_param(mixer, charp, 0644); +MODULE_PARM_DESC(mixer, MIXER_HELP); + #ifndef MODULE static int set_dsp(char *name, int *add) { @@ -56,15 +61,6 @@ static int set_mixer(char *name, int *add) } __uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP); - -#else /*MODULE*/ - -module_param(dsp, charp, 0644); -MODULE_PARM_DESC(dsp, DSP_HELP); - -module_param(mixer, charp, 0644); -MODULE_PARM_DESC(mixer, MIXER_HELP); - #endif /* /dev/dsp file operations */ diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 1bcd208..9734994 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -163,6 +163,7 @@ struct ubd { struct scatterlist sg[MAX_SG]; struct request *request; int start_sg, end_sg; + sector_t rq_pos; }; #define DEFAULT_COW { \ @@ -187,6 +188,7 @@ struct ubd { .request = NULL, \ .start_sg = 0, \ .end_sg = 0, \ + .rq_pos = 0, \ } /* Protected by ubd_lock */ @@ -1228,7 +1230,6 @@ static void do_ubd_request(struct request_queue *q) { struct io_thread_req *io_req; struct request *req; - sector_t sector; int n; while(1){ @@ -1239,12 +1240,12 @@ static void do_ubd_request(struct request_queue *q) return; dev->request = req; + dev->rq_pos = blk_rq_pos(req); dev->start_sg = 0; dev->end_sg = blk_rq_map_sg(q, req, dev->sg); } req = dev->request; - sector = blk_rq_pos(req); while(dev->start_sg < dev->end_sg){ struct scatterlist *sg = &dev->sg[dev->start_sg]; @@ -1256,10 +1257,9 @@ static void do_ubd_request(struct request_queue *q) return; } prepare_request(req, io_req, - (unsigned long long)sector << 9, + (unsigned long long)dev->rq_pos << 9, sg->offset, sg->length, sg_page(sg)); - sector += sg->length >> 9; n = os_write_file(thread_fd, &io_req, sizeof(struct io_thread_req *)); if(n != sizeof(struct io_thread_req *)){ @@ -1272,6 +1272,7 @@ static void do_ubd_request(struct request_queue *q) return; } + dev->rq_pos += sg->length >> 9; dev->start_sg++; } dev->end_sg = 0; diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index 0350311..2d93bdb 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -34,7 +34,7 @@ #include <asm/ia32.h> #undef WARN_OLD -#undef CORE_DUMP /* probably broken */ +#undef CORE_DUMP /* definitely broken */ static int load_aout_binary(struct linux_binprm *, struct pt_regs *regs); static int load_aout_library(struct file *); @@ -131,21 +131,15 @@ static void set_brk(unsigned long start, unsigned long end) * macros to write out all the necessary info. */ -static int dump_write(struct file *file, const void *addr, int nr) -{ - return file->f_op->write(file, addr, nr, &file->f_pos) == nr; -} +#include <linux/coredump.h> #define DUMP_WRITE(addr, nr) \ if (!dump_write(file, (void *)(addr), (nr))) \ goto end_coredump; -#define DUMP_SEEK(offset) \ - if (file->f_op->llseek) { \ - if (file->f_op->llseek(file, (offset), 0) != (offset)) \ - goto end_coredump; \ - } else \ - file->f_pos = (offset) +#define DUMP_SEEK(offset) \ + if (!dump_seek(file, offset)) \ + goto end_coredump; #define START_DATA() (u.u_tsize << PAGE_SHIFT) #define START_STACK(u) (u.start_stack) @@ -217,12 +211,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file, dump_size = dump.u_ssize << PAGE_SHIFT; DUMP_WRITE(dump_start, dump_size); } - /* - * Finally dump the task struct. Not be used by gdb, but - * could be useful - */ - set_fs(KERNEL_DS); - DUMP_WRITE(current, sizeof(*current)); end_coredump: set_fs(fs); return has_dumped; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 502e53f..c52e2eb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -652,20 +652,6 @@ static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) return (struct kvm_mmu_page *)page_private(page); } -static inline u16 kvm_read_fs(void) -{ - u16 seg; - asm("mov %%fs, %0" : "=g"(seg)); - return seg; -} - -static inline u16 kvm_read_gs(void) -{ - u16 seg; - asm("mov %%gs, %0" : "=g"(seg)); - return seg; -} - static inline u16 kvm_read_ldt(void) { u16 ldt; @@ -673,16 +659,6 @@ static inline u16 kvm_read_ldt(void) return ldt; } -static inline void kvm_load_fs(u16 sel) -{ - asm("mov %0, %%fs" : : "rm"(sel)); -} - -static inline void kvm_load_gs(u16 sel) -{ - asm("mov %0, %%gs" : : "rm"(sel)); -} - static inline void kvm_load_ldt(u16 sel) { asm("lldt %0" : : "rm"(sel)); diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index 5e97529..39aaee5 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -141,6 +141,7 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c) address = (low & MASK_BLKPTR_LO) >> 21; if (!address) break; + address += MCG_XBLK_ADDR; } else ++address; @@ -148,12 +149,8 @@ void mce_amd_feature_init(struct cpuinfo_x86 *c) if (rdmsr_safe(address, &low, &high)) break; - if (!(high & MASK_VALID_HI)) { - if (block) - continue; - else - break; - } + if (!(high & MASK_VALID_HI)) + continue; if (!(high & MASK_CNTP_HI) || (high & MASK_LOCKED_HI)) diff --git a/arch/x86/kernel/cpu/mcheck/therm_throt.c b/arch/x86/kernel/cpu/mcheck/therm_throt.c index d9368ee..169d880 100644 --- a/arch/x86/kernel/cpu/mcheck/therm_throt.c +++ b/arch/x86/kernel/cpu/mcheck/therm_throt.c @@ -216,7 +216,7 @@ static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev, err = sysfs_add_file_to_group(&sys_dev->kobj, &attr_core_power_limit_count.attr, thermal_attr_group.name); - if (cpu_has(c, X86_FEATURE_PTS)) + if (cpu_has(c, X86_FEATURE_PTS)) { err = sysfs_add_file_to_group(&sys_dev->kobj, &attr_package_throttle_count.attr, thermal_attr_group.name); @@ -224,6 +224,7 @@ static __cpuinit int thermal_throttle_add_dev(struct sys_device *sys_dev, err = sysfs_add_file_to_group(&sys_dev->kobj, &attr_package_power_limit_count.attr, thermal_attr_group.name); + } return err; } diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index bc5b9b8..8a3f9f6 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -766,7 +766,6 @@ static void init_vmcb(struct vcpu_svm *svm) control->iopm_base_pa = iopm_base; control->msrpm_base_pa = __pa(svm->msrpm); - control->tsc_offset = 0; control->int_ctl = V_INTR_MASKING_MASK; init_seg(&save->es); @@ -902,6 +901,7 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT; svm->asid_generation = 0; init_vmcb(svm); + svm->vmcb->control.tsc_offset = 0-native_read_tsc(); err = fx_init(&svm->vcpu); if (err) @@ -3163,8 +3163,8 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) sync_lapic_to_cr8(vcpu); save_host_msrs(vcpu); - fs_selector = kvm_read_fs(); - gs_selector = kvm_read_gs(); + savesegment(fs, fs_selector); + savesegment(gs, gs_selector); ldt_selector = kvm_read_ldt(); svm->vmcb->save.cr2 = vcpu->arch.cr2; /* required for live migration with NPT */ @@ -3251,10 +3251,15 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu) vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp; vcpu->arch.regs[VCPU_REGS_RIP] = svm->vmcb->save.rip; - kvm_load_fs(fs_selector); - kvm_load_gs(gs_selector); - kvm_load_ldt(ldt_selector); load_host_msrs(vcpu); + loadsegment(fs, fs_selector); +#ifdef CONFIG_X86_64 + load_gs_index(gs_selector); + wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs); +#else + loadsegment(gs, gs_selector); +#endif + kvm_load_ldt(ldt_selector); reload_tss(vcpu); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 49b25ee..7bddfab 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -803,7 +803,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu) */ vmx->host_state.ldt_sel = kvm_read_ldt(); vmx->host_state.gs_ldt_reload_needed = vmx->host_state.ldt_sel; - vmx->host_state.fs_sel = kvm_read_fs(); + savesegment(fs, vmx->host_state.fs_sel); if (!(vmx->host_state.fs_sel & 7)) { vmcs_write16(HOST_FS_SELECTOR, vmx->host_state.fs_sel); vmx->host_state.fs_reload_needed = 0; @@ -811,7 +811,7 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu) vmcs_write16(HOST_FS_SELECTOR, 0); vmx->host_state.fs_reload_needed = 1; } - vmx->host_state.gs_sel = kvm_read_gs(); + savesegment(gs, vmx->host_state.gs_sel); if (!(vmx->host_state.gs_sel & 7)) vmcs_write16(HOST_GS_SELECTOR, vmx->host_state.gs_sel); else { @@ -841,27 +841,21 @@ static void vmx_save_host_state(struct kvm_vcpu *vcpu) static void __vmx_load_host_state(struct vcpu_vmx *vmx) { - unsigned long flags; - if (!vmx->host_state.loaded) return; ++vmx->vcpu.stat.host_state_reload; vmx->host_state.loaded = 0; if (vmx->host_state.fs_reload_needed) - kvm_load_fs(vmx->host_state.fs_sel); + loadsegment(fs, vmx->host_state.fs_sel); if (vmx->host_state.gs_ldt_reload_needed) { kvm_load_ldt(vmx->host_state.ldt_sel); - /* - * If we have to reload gs, we must take care to - * preserve our gs base. - */ - local_irq_save(flags); - kvm_load_gs(vmx->host_state.gs_sel); #ifdef CONFIG_X86_64 - wrmsrl(MSR_GS_BASE, vmcs_readl(HOST_GS_BASE)); + load_gs_index(vmx->host_state.gs_sel); + wrmsrl(MSR_KERNEL_GS_BASE, current->thread.gs); +#else + loadsegment(gs, vmx->host_state.gs_sel); #endif - local_irq_restore(flags); } reload_tss(); #ifdef CONFIG_X86_64 @@ -2589,8 +2583,8 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx) vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS); /* 22.2.4 */ vmcs_write16(HOST_DS_SELECTOR, __KERNEL_DS); /* 22.2.4 */ vmcs_write16(HOST_ES_SELECTOR, __KERNEL_DS); /* 22.2.4 */ - vmcs_write16(HOST_FS_SELECTOR, kvm_read_fs()); /* 22.2.4 */ - vmcs_write16(HOST_GS_SELECTOR, kvm_read_gs()); /* 22.2.4 */ + vmcs_write16(HOST_FS_SELECTOR, 0); /* 22.2.4 */ + vmcs_write16(HOST_GS_SELECTOR, 0); /* 22.2.4 */ vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS); /* 22.2.4 */ #ifdef CONFIG_X86_64 rdmsrl(MSR_FS_BASE, a); diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index f9897f7..9c0d0d3 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -420,9 +420,11 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end) return -1; } - for_each_node_mask(i, nodes_parsed) - e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT, - nodes[i].end >> PAGE_SHIFT); + for (i = 0; i < num_node_memblks; i++) + e820_register_active_regions(memblk_nodeid[i], + node_memblk_range[i].start >> PAGE_SHIFT, + node_memblk_range[i].end >> PAGE_SHIFT); + /* for out of order entries in SRAT */ sort_node_map(); if (!nodes_cover_memory(nodes)) { |
