diff options
Diffstat (limited to 'arch/x86/include')
-rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 168 | ||||
-rw-r--r-- | arch/x86/include/asm/kmap_types.h | 23 | ||||
-rw-r--r-- | arch/x86/include/asm/kmemcheck.h | 42 | ||||
-rw-r--r-- | arch/x86/include/asm/pgtable.h | 5 | ||||
-rw-r--r-- | arch/x86/include/asm/pgtable_types.h | 9 | ||||
-rw-r--r-- | arch/x86/include/asm/string_32.h | 8 | ||||
-rw-r--r-- | arch/x86/include/asm/string_64.h | 8 | ||||
-rw-r--r-- | arch/x86/include/asm/thread_info.h | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/timex.h | 4 | ||||
-rw-r--r-- | arch/x86/include/asm/xor.h | 5 |
10 files changed, 84 insertions, 192 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index f82fdc412c6..1c3f9435f1c 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -6,6 +6,7 @@ * Documentation/DMA-API.txt for documentation. */ +#include <linux/kmemcheck.h> #include <linux/scatterlist.h> #include <linux/dma-debug.h> #include <linux/dma-attrs.h> @@ -32,6 +33,8 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #endif } +#include <asm-generic/dma-mapping-common.h> + /* Make sure we keep the same behaviour */ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { @@ -52,171 +55,6 @@ extern int dma_set_mask(struct device *dev, u64 mask); extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, gfp_t flag); -static inline dma_addr_t -dma_map_single(struct device *hwdev, void *ptr, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - dma_addr_t addr; - - BUG_ON(!valid_dma_direction(dir)); - addr = ops->map_page(hwdev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, - dir, NULL); - debug_dma_map_page(hwdev, virt_to_page(ptr), - (unsigned long)ptr & ~PAGE_MASK, size, - dir, addr, true); - return addr; -} - -static inline void -dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(dev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->unmap_page) - ops->unmap_page(dev, addr, size, dir, NULL); - debug_dma_unmap_page(dev, addr, size, dir, true); -} - -static inline int -dma_map_sg(struct device *hwdev, struct scatterlist *sg, - int nents, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - int ents; - - BUG_ON(!valid_dma_direction(dir)); - ents = ops->map_sg(hwdev, sg, nents, dir, NULL); - debug_dma_map_sg(hwdev, sg, nents, ents, dir); - - return ents; -} - -static inline void -dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - debug_dma_unmap_sg(hwdev, sg, nents, dir); - if (ops->unmap_sg) - ops->unmap_sg(hwdev, sg, nents, dir, NULL); -} - -static inline void -dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_for_cpu) - ops->sync_single_for_cpu(hwdev, dma_handle, size, dir); - debug_dma_sync_single_for_cpu(hwdev, dma_handle, size, dir); - flush_write_buffers(); -} - -static inline void -dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle, - size_t size, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_for_device) - ops->sync_single_for_device(hwdev, dma_handle, size, dir); - debug_dma_sync_single_for_device(hwdev, dma_handle, size, dir); - flush_write_buffers(); -} - -static inline void -dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_range_for_cpu) - ops->sync_single_range_for_cpu(hwdev, dma_handle, offset, - size, dir); - debug_dma_sync_single_range_for_cpu(hwdev, dma_handle, - offset, size, dir); - flush_write_buffers(); -} - -static inline void -dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_single_range_for_device) - ops->sync_single_range_for_device(hwdev, dma_handle, - offset, size, dir); - debug_dma_sync_single_range_for_device(hwdev, dma_handle, - offset, size, dir); - flush_write_buffers(); -} - -static inline void -dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, - int nelems, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_sg_for_cpu) - ops->sync_sg_for_cpu(hwdev, sg, nelems, dir); - debug_dma_sync_sg_for_cpu(hwdev, sg, nelems, dir); - flush_write_buffers(); -} - -static inline void -dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, - int nelems, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(hwdev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->sync_sg_for_device) - ops->sync_sg_for_device(hwdev, sg, nelems, dir); - debug_dma_sync_sg_for_device(hwdev, sg, nelems, dir); - - flush_write_buffers(); -} - -static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, - size_t offset, size_t size, - enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(dev); - dma_addr_t addr; - - BUG_ON(!valid_dma_direction(dir)); - addr = ops->map_page(dev, page, offset, size, dir, NULL); - debug_dma_map_page(dev, page, offset, size, dir, addr, false); - - return addr; -} - -static inline void dma_unmap_page(struct device *dev, dma_addr_t addr, - size_t size, enum dma_data_direction dir) -{ - struct dma_map_ops *ops = get_dma_ops(dev); - - BUG_ON(!valid_dma_direction(dir)); - if (ops->unmap_page) - ops->unmap_page(dev, addr, size, dir, NULL); - debug_dma_unmap_page(dev, addr, size, dir, false); -} - static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir) diff --git a/arch/x86/include/asm/kmap_types.h b/arch/x86/include/asm/kmap_types.h index 5759c165a5c..9e00a731a7f 100644 --- a/arch/x86/include/asm/kmap_types.h +++ b/arch/x86/include/asm/kmap_types.h @@ -2,28 +2,11 @@ #define _ASM_X86_KMAP_TYPES_H #if defined(CONFIG_X86_32) && defined(CONFIG_DEBUG_HIGHMEM) -# define D(n) __KM_FENCE_##n , -#else -# define D(n) +#define __WITH_KM_FENCE #endif -enum km_type { -D(0) KM_BOUNCE_READ, -D(1) KM_SKB_SUNRPC_DATA, -D(2) KM_SKB_DATA_SOFTIRQ, -D(3) KM_USER0, -D(4) KM_USER1, -D(5) KM_BIO_SRC_IRQ, -D(6) KM_BIO_DST_IRQ, -D(7) KM_PTE0, -D(8) KM_PTE1, -D(9) KM_IRQ0, -D(10) KM_IRQ1, -D(11) KM_SOFTIRQ0, -D(12) KM_SOFTIRQ1, -D(13) KM_TYPE_NR -}; +#include <asm-generic/kmap_types.h> -#undef D +#undef __WITH_KM_FENCE #endif /* _ASM_X86_KMAP_TYPES_H */ diff --git a/arch/x86/include/asm/kmemcheck.h b/arch/x86/include/asm/kmemcheck.h new file mode 100644 index 00000000000..ed01518f297 --- /dev/null +++ b/arch/x86/include/asm/kmemcheck.h @@ -0,0 +1,42 @@ +#ifndef ASM_X86_KMEMCHECK_H +#define ASM_X86_KMEMCHECK_H + +#include <linux/types.h> +#include <asm/ptrace.h> + +#ifdef CONFIG_KMEMCHECK +bool kmemcheck_active(struct pt_regs *regs); + +void kmemcheck_show(struct pt_regs *regs); +void kmemcheck_hide(struct pt_regs *regs); + +bool kmemcheck_fault(struct pt_regs *regs, + unsigned long address, unsigned long error_code); +bool kmemcheck_trap(struct pt_regs *regs); +#else +static inline bool kmemcheck_active(struct pt_regs *regs) +{ + return false; +} + +static inline void kmemcheck_show(struct pt_regs *regs) +{ +} + +static inline void kmemcheck_hide(struct pt_regs *regs) +{ +} + +static inline bool kmemcheck_fault(struct pt_regs *regs, + unsigned long address, unsigned long error_code) +{ + return false; +} + +static inline bool kmemcheck_trap(struct pt_regs *regs) +{ + return false; +} +#endif /* CONFIG_KMEMCHECK */ + +#endif diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 18ef7ebf263..3cc06e3fceb 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -317,6 +317,11 @@ static inline int pte_present(pte_t a) return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE); } +static inline int pte_hidden(pte_t pte) +{ + return pte_flags(pte) & _PAGE_HIDDEN; +} + static inline int pmd_present(pmd_t pmd) { return pmd_flags(pmd) & _PAGE_PRESENT; diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h index 4d258ad76a0..54cb697f490 100644 --- a/arch/x86/include/asm/pgtable_types.h +++ b/arch/x86/include/asm/pgtable_types.h @@ -18,7 +18,7 @@ #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ #define _PAGE_BIT_UNUSED1 9 /* available for programmer */ #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ -#define _PAGE_BIT_UNUSED3 11 +#define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */ #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ #define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 #define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 @@ -41,13 +41,18 @@ #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) #define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) -#define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE) #define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL) #define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST) #define __HAVE_ARCH_PTE_SPECIAL +#ifdef CONFIG_KMEMCHECK +#define _PAGE_HIDDEN (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN) +#else +#define _PAGE_HIDDEN (_AT(pteval_t, 0)) +#endif + #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) #else diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h index 0e0e3ba827f..c86f452256d 100644 --- a/arch/x86/include/asm/string_32.h +++ b/arch/x86/include/asm/string_32.h @@ -177,10 +177,18 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len) * No 3D Now! */ +#ifndef CONFIG_KMEMCHECK #define memcpy(t, f, n) \ (__builtin_constant_p((n)) \ ? __constant_memcpy((t), (f), (n)) \ : __memcpy((t), (f), (n))) +#else +/* + * kmemcheck becomes very happy if we use the REP instructions unconditionally, + * because it means that we know both memory operands in advance. + */ +#define memcpy(t, f, n) __memcpy((t), (f), (n)) +#endif #endif diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index 2afe164bf1e..19e2c468fc2 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -27,6 +27,7 @@ static __always_inline void *__inline_memcpy(void *to, const void *from, size_t function. */ #define __HAVE_ARCH_MEMCPY 1 +#ifndef CONFIG_KMEMCHECK #if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4 extern void *memcpy(void *to, const void *from, size_t len); #else @@ -42,6 +43,13 @@ extern void *__memcpy(void *to, const void *from, size_t len); __ret; \ }) #endif +#else +/* + * kmemcheck becomes very happy if we use the REP instructions unconditionally, + * because it means that we know both memory operands in advance. + */ +#define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len)) +#endif #define __HAVE_ARCH_MEMSET void *memset(void *s, int c, size_t n); diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 602c769fc98..b0783520988 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -154,9 +154,9 @@ struct thread_info { /* thread information allocation */ #ifdef CONFIG_DEBUG_STACK_USAGE -#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO) +#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO) #else -#define THREAD_FLAGS GFP_KERNEL +#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK) #endif #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR diff --git a/arch/x86/include/asm/timex.h b/arch/x86/include/asm/timex.h index b5c9d45c981..1375cfc9396 100644 --- a/arch/x86/include/asm/timex.h +++ b/arch/x86/include/asm/timex.h @@ -4,9 +4,7 @@ #include <asm/processor.h> #include <asm/tsc.h> -/* The PIT ticks at this frequency (in HZ): */ -#define PIT_TICK_RATE 1193182 - +/* Assume we use the PIT time source for the clock tick */ #define CLOCK_TICK_RATE PIT_TICK_RATE #define ARCH_HAS_READ_CURRENT_TIMER diff --git a/arch/x86/include/asm/xor.h b/arch/x86/include/asm/xor.h index 11b3bb86e17..7fcf6f3dbcc 100644 --- a/arch/x86/include/asm/xor.h +++ b/arch/x86/include/asm/xor.h @@ -1,5 +1,10 @@ +#ifdef CONFIG_KMEMCHECK +/* kmemcheck doesn't handle MMX/SSE/SSE2 instructions */ +# include <asm-generic/xor.h> +#else #ifdef CONFIG_X86_32 # include "xor_32.h" #else # include "xor_64.h" #endif +#endif |