diff options
Diffstat (limited to 'arch/arm')
30 files changed, 96 insertions, 46 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c1f1a7eee953..9c909fc29272 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -30,6 +30,7 @@ config ARM select HAVE_BPF_JIT select HAVE_CONTEXT_TRACKING select HAVE_C_RECORDMCOUNT + select HAVE_CC_STACKPROTECTOR select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_API_DEBUG select HAVE_DMA_ATTRS @@ -1856,18 +1857,6 @@ config SECCOMP and the task is only allowed to execute a few safe syscalls defined by each seccomp mode. -config CC_STACKPROTECTOR - bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" - help - This option turns on the -fstack-protector GCC feature. This - feature puts, at the beginning of functions, a canary value on - the stack just before the return address, and validates - the value just before actually returning. Stack based buffer - overflows (that need to overwrite this return address) now also - overwrite the canary, which gets detected and the attack is then - neutralized via a kernel panic. - This feature requires gcc version 4.2 or above. - config SWIOTLB def_bool y diff --git a/arch/arm/Makefile b/arch/arm/Makefile index c99b1086d83d..55b4255ad6ed 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -40,10 +40,6 @@ ifeq ($(CONFIG_FRAME_POINTER),y) KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog endif -ifeq ($(CONFIG_CC_STACKPROTECTOR),y) -KBUILD_CFLAGS +=-fstack-protector -endif - ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) KBUILD_CPPFLAGS += -mbig-endian AS += -EB diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 31bd43b82095..d4f891f56996 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -127,6 +127,18 @@ asmlinkage void __div0(void) error("Attempting division by 0!"); } +unsigned long __stack_chk_guard; + +void __stack_chk_guard_setup(void) +{ + __stack_chk_guard = 0x000a0dff; +} + +void __stack_chk_fail(void) +{ + error("stack-protector: Kernel stack is corrupted\n"); +} + extern int do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x)); @@ -137,6 +149,8 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, { int ret; + __stack_chk_guard_setup(); + output_data = (unsigned char *)output_start; free_mem_ptr = free_mem_ptr_p; free_mem_end_ptr = free_mem_ptr_end_p; diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index 9db5047812f3..177becde7a26 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -559,7 +559,7 @@ compatible = "arm,pl330", "arm,primecell"; reg = <0x10800000 0x1000>; interrupts = <0 33 0>; - clocks = <&clock 271>; + clocks = <&clock 346>; clock-names = "apb_pclk"; #dma-cells = <1>; #dma-channels = <8>; diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi index 52476742a104..e674c94c7206 100644 --- a/arch/arm/boot/dts/sun5i-a10s.dtsi +++ b/arch/arm/boot/dts/sun5i-a10s.dtsi @@ -332,5 +332,12 @@ clock-frequency = <100000>; status = "disabled"; }; + + timer@01c60000 { + compatible = "allwinner,sun5i-a13-hstimer"; + reg = <0x01c60000 0x1000>; + interrupts = <82>, <83>; + clocks = <&ahb_gates 28>; + }; }; }; diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi index ce8ef2a45be0..1ccd75d37f49 100644 --- a/arch/arm/boot/dts/sun5i-a13.dtsi +++ b/arch/arm/boot/dts/sun5i-a13.dtsi @@ -273,5 +273,12 @@ clock-frequency = <100000>; status = "disabled"; }; + + timer@01c60000 { + compatible = "allwinner,sun5i-a13-hstimer"; + reg = <0x01c60000 0x1000>; + interrupts = <82>, <83>; + clocks = <&ahb_gates 28>; + }; }; }; diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index 367611a0730b..0135039eff96 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -395,6 +395,16 @@ status = "disabled"; }; + hstimer@01c60000 { + compatible = "allwinner,sun7i-a20-hstimer"; + reg = <0x01c60000 0x1000>; + interrupts = <0 81 1>, + <0 82 1>, + <0 83 1>, + <0 84 1>; + clocks = <&ahb_gates 28>; + }; + gic: interrupt-controller@01c81000 { compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic"; reg = <0x01c81000 0x1000>, diff --git a/arch/arm/crypto/aesbs-core.S_shipped b/arch/arm/crypto/aesbs-core.S_shipped index 64205d453260..71e5fc7cfb18 100644 --- a/arch/arm/crypto/aesbs-core.S_shipped +++ b/arch/arm/crypto/aesbs-core.S_shipped @@ -58,7 +58,7 @@ # define VFP_ABI_FRAME 0 # define BSAES_ASM_EXTENDED_KEY # define XTS_CHAIN_TWEAK -# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +# define __ARM_ARCH__ 7 #endif #ifdef __thumb__ diff --git a/arch/arm/crypto/bsaes-armv7.pl b/arch/arm/crypto/bsaes-armv7.pl index f3d96d932573..be068db960ee 100644 --- a/arch/arm/crypto/bsaes-armv7.pl +++ b/arch/arm/crypto/bsaes-armv7.pl @@ -701,7 +701,7 @@ $code.=<<___; # define VFP_ABI_FRAME 0 # define BSAES_ASM_EXTENDED_KEY # define XTS_CHAIN_TWEAK -# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +# define __ARM_ARCH__ 7 #endif #ifdef __thumb__ diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 60f15e274e6d..2f59f7443396 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -59,6 +59,21 @@ #define smp_wmb() dmb(ishst) #endif +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #define read_barrier_depends() do { } while(0) #define smp_read_barrier_depends() do { } while(0) diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 3c597c222ef2..fbeb39c869e9 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -329,7 +329,7 @@ extern void _memset_io(volatile void __iomem *, int, size_t); */ #define ioremap(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) #define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) -#define ioremap_cached(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED) +#define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED) #define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC) #define iounmap __arm_iounmap diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 6976b03e5213..8756e4bcdba0 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -347,7 +347,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define ARCH_PFN_OFFSET PHYS_PFN_OFFSET #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) +#define virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) \ + && pfn_valid(__pa(kaddr) >> PAGE_SHIFT) ) #endif diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 141baa3f9a72..acabef1a75df 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -15,7 +15,7 @@ #include <uapi/asm/unistd.h> -#define __NR_syscalls (380) +#define __NR_syscalls (384) #define __ARM_NR_cmpxchg (__ARM_NR_BASE+0x00fff0) #define __ARCH_WANT_STAT64 diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h index 75579a9d6f76..3759cacdd7f8 100644 --- a/arch/arm/include/asm/xen/page.h +++ b/arch/arm/include/asm/xen/page.h @@ -117,6 +117,6 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn) return __set_phys_to_machine(pfn, mfn); } -#define xen_remap(cookie, size) ioremap_cached((cookie), (size)); +#define xen_remap(cookie, size) ioremap_cache((cookie), (size)); #endif /* _ASM_ARM_XEN_PAGE_H */ diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h index af33b44990ed..fb5584d0cc05 100644 --- a/arch/arm/include/uapi/asm/unistd.h +++ b/arch/arm/include/uapi/asm/unistd.h @@ -406,6 +406,8 @@ #define __NR_process_vm_writev (__NR_SYSCALL_BASE+377) #define __NR_kcmp (__NR_SYSCALL_BASE+378) #define __NR_finit_module (__NR_SYSCALL_BASE+379) +#define __NR_sched_setattr (__NR_SYSCALL_BASE+380) +#define __NR_sched_getattr (__NR_SYSCALL_BASE+381) /* * This may need to be greater than __NR_last_syscall+1 in order to diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index c6ca7e376773..166e945de832 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -389,6 +389,8 @@ CALL(sys_process_vm_writev) CALL(sys_kcmp) CALL(sys_finit_module) +/* 380 */ CALL(sys_sched_setattr) + CALL(sys_sched_getattr) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index 739c3dfc1da2..34d5fd585bbb 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -171,7 +171,7 @@ void __init arm_dt_init_cpu_maps(void) bool arch_match_cpu_phys_id(int cpu, u64 phys_id) { - return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu); + return phys_id == cpu_logical_map(cpu); } static const void * __init arch_get_next_mach(const char *const **match) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index bc3f2efa0d86..789d846a9184 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -99,10 +99,6 @@ int armpmu_event_set_period(struct perf_event *event) s64 period = hwc->sample_period; int ret = 0; - /* The period may have been changed by PERF_EVENT_IOC_PERIOD */ - if (unlikely(period != hwc->last_period)) - left = period - (hwc->last_period - left); - if (unlikely(left <= -period)) { left = period; local64_set(&hwc->period_left, left); diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c index d85055cd24ba..20d553c9f5e2 100644 --- a/arch/arm/kernel/perf_event_cpu.c +++ b/arch/arm/kernel/perf_event_cpu.c @@ -254,7 +254,7 @@ static int probe_current_pmu(struct arm_pmu *pmu) static int cpu_pmu_device_probe(struct platform_device *pdev) { const struct of_device_id *of_id; - int (*init_fn)(struct arm_pmu *); + const int (*init_fn)(struct arm_pmu *); struct device_node *node = pdev->dev.of_node; struct arm_pmu *pmu; int ret = -ENODEV; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 7940241f0576..4636d56af2db 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -36,7 +36,13 @@ #include <asm/system_misc.h> #include <asm/opcodes.h> -static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" }; +static const char *handler[]= { + "prefetch abort", + "data abort", + "address exception", + "interrupt", + "undefined instruction", +}; void *vectors_page; @@ -425,9 +431,10 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) instr2 = __mem_to_opcode_thumb16(instr2); instr = __opcode_thumb32_compose(instr, instr2); } - } else if (get_user(instr, (u32 __user *)pc)) { + } else { + if (get_user(instr, (u32 __user *)pc)) + goto die_sig; instr = __mem_to_opcode_arm(instr); - goto die_sig; } if (call_undef_hook(regs, instr) == 0) diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c index 9ee78f7b4990..782f6c71fa0a 100644 --- a/arch/arm/mach-footbridge/dc21285-timer.c +++ b/arch/arm/mach-footbridge/dc21285-timer.c @@ -96,11 +96,12 @@ static struct irqaction footbridge_timer_irq = { void __init footbridge_timer_init(void) { struct clock_event_device *ce = &ckevt_dc21285; + unsigned rate = DIV_ROUND_CLOSEST(mem_fclk_21285, 16); - clocksource_register_hz(&cksrc_dc21285, (mem_fclk_21285 + 8) / 16); + clocksource_register_hz(&cksrc_dc21285, rate); setup_irq(ce->irq, &footbridge_timer_irq); ce->cpumask = cpumask_of(smp_processor_id()); - clockevents_config_and_register(ce, mem_fclk_21285, 0x4, 0xffffff); + clockevents_config_and_register(ce, rate, 0x4, 0xffffff); } diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index bd3bf66ce344..c7de89b263dd 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -53,6 +53,7 @@ static void __init highbank_scu_map_io(void) static void highbank_l2x0_disable(void) { + outer_flush_all(); /* Disable PL310 L2 Cache controller */ highbank_smc1(0x102, 0x0); } diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index b39efd46abf9..c0ab9b26be3d 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -162,6 +162,7 @@ void __iomem *omap4_get_l2cache_base(void) static void omap4_l2x0_disable(void) { + outer_flush_all(); /* Disable PL310 L2 Cache controller */ omap_smc1(0x102, 0x0); } diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index c18689123023..8ea87bd45c33 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -483,7 +483,7 @@ static struct platform_device lcdc0_device = { .id = 0, .dev = { .platform_data = &lcdc0_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -580,7 +580,7 @@ static struct platform_device hdmi_lcdc_device = { .id = 1, .dev = { .platform_data = &hdmi_lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c index fe689b7fdc9e..bc40b853ffd3 100644 --- a/arch/arm/mach-shmobile/board-kzm9g.c +++ b/arch/arm/mach-shmobile/board-kzm9g.c @@ -334,7 +334,7 @@ static struct platform_device lcdc_device = { .resource = lcdc_resources, .dev = { .platform_data = &lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index af06753eb809..e721d2ccceae 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -409,7 +409,7 @@ static struct platform_device lcdc_device = { .resource = lcdc_resources, .dev = { .platform_data = &lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -499,7 +499,7 @@ static struct platform_device hdmi_lcdc_device = { .id = 1, .dev = { .platform_data = &hdmi_lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index c9e72c89066a..bce0d4277f71 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -12,3 +12,4 @@ config ARCH_SUNXI select PINCTRL_SUNXI select SPARSE_IRQ select SUN4I_TIMER + select SUN5I_HSTIMER diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 6d5ba9afb16a..3387e60e4ea3 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -175,16 +175,16 @@ void __flush_dcache_page(struct address_space *mapping, struct page *page) unsigned long i; if (cache_is_vipt_nonaliasing()) { for (i = 0; i < (1 << compound_order(page)); i++) { - void *addr = kmap_atomic(page); + void *addr = kmap_atomic(page + i); __cpuc_flush_dcache_area(addr, PAGE_SIZE); kunmap_atomic(addr); } } else { for (i = 0; i < (1 << compound_order(page)); i++) { - void *addr = kmap_high_get(page); + void *addr = kmap_high_get(page + i); if (addr) { __cpuc_flush_dcache_area(addr, PAGE_SIZE); - kunmap_high(page); + kunmap_high(page + i); } } } diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 1f7b19a47060..3e8f106ee5fe 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -229,7 +229,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc) #ifdef CONFIG_ZONE_DMA if (mdesc->dma_zone_size) { arm_dma_zone_size = mdesc->dma_zone_size; - arm_dma_limit = __pv_phys_offset + arm_dma_zone_size - 1; + arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1; } else arm_dma_limit = 0xffffffff; arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT; diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index 9ed155ad0f97..271b5e971568 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -641,10 +641,10 @@ load_ind: emit(ARM_MUL(r_A, r_A, r_X), ctx); break; case BPF_S_ALU_DIV_K: - /* current k == reciprocal_value(userspace k) */ + if (k == 1) + break; emit_mov_i(r_scratch, k, ctx); - /* A = top 32 bits of the product */ - emit(ARM_UMULL(r_scratch, r_A, r_A, r_scratch), ctx); + emit_udiv(r_A, r_A, r_scratch, ctx); break; case BPF_S_ALU_DIV_X: update_on_xread(ctx); |