diff options
author | H. Peter Anvin <hpa@zytor.com> | 2009-05-23 16:42:19 -0700 |
---|---|---|
committer | H. Peter Anvin <hpa@zytor.com> | 2009-05-23 16:42:19 -0700 |
commit | ee0736627d3347be0be2769fa7b26431f9726c9d (patch) | |
tree | 203e2204daaec4cf005463fdf2c7bf380d6eef36 /arch/arm/include | |
parent | cf9972a921470b0a2da7906104bcd540b20e33bf (diff) | |
parent | 0af48f42df15b97080b450d24219dd95db7b929a (diff) |
Merge branch 'x86/urgent' into x86/setup
Resolved conflicts:
arch/x86/boot/memory.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/arm/include')
-rw-r--r-- | arch/arm/include/asm/elf.h | 16 | ||||
-rw-r--r-- | arch/arm/include/asm/tlb.h | 25 | ||||
-rw-r--r-- | arch/arm/include/asm/unistd.h | 2 |
3 files changed, 32 insertions, 11 deletions
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h index d7da19bcf92..c207504de84 100644 --- a/arch/arm/include/asm/elf.h +++ b/arch/arm/include/asm/elf.h @@ -45,13 +45,15 @@ typedef struct user_fp elf_fpregset_t; #define EF_ARM_HASENTRY 0x00000002 /* All */ #define EF_ARM_RELEXEC 0x00000001 /* All */ -#define R_ARM_NONE 0 -#define R_ARM_PC24 1 -#define R_ARM_ABS32 2 -#define R_ARM_CALL 28 -#define R_ARM_JUMP24 29 -#define R_ARM_V4BX 40 -#define R_ARM_PREL31 42 +#define R_ARM_NONE 0 +#define R_ARM_PC24 1 +#define R_ARM_ABS32 2 +#define R_ARM_CALL 28 +#define R_ARM_JUMP24 29 +#define R_ARM_V4BX 40 +#define R_ARM_PREL31 42 +#define R_ARM_MOVW_ABS_NC 43 +#define R_ARM_MOVT_ABS 44 /* * These are used to set parameters in the core dumps. diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h index 857f1dfac79..321c83e43a1 100644 --- a/arch/arm/include/asm/tlb.h +++ b/arch/arm/include/asm/tlb.h @@ -36,6 +36,8 @@ struct mmu_gather { struct mm_struct *mm; unsigned int fullmm; + unsigned long range_start; + unsigned long range_end; }; DECLARE_PER_CPU(struct mmu_gather, mmu_gathers); @@ -63,7 +65,19 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) put_cpu_var(mmu_gathers); } -#define tlb_remove_tlb_entry(tlb,ptep,address) do { } while (0) +/* + * Memorize the range for the TLB flush. + */ +static inline void +tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep, unsigned long addr) +{ + if (!tlb->fullmm) { + if (addr < tlb->range_start) + tlb->range_start = addr; + if (addr + PAGE_SIZE > tlb->range_end) + tlb->range_end = addr + PAGE_SIZE; + } +} /* * In the case of tlb vma handling, we can optimise these away in the @@ -73,15 +87,18 @@ tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) static inline void tlb_start_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { - if (!tlb->fullmm) + if (!tlb->fullmm) { flush_cache_range(vma, vma->vm_start, vma->vm_end); + tlb->range_start = TASK_SIZE; + tlb->range_end = 0; + } } static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma) { - if (!tlb->fullmm) - flush_tlb_range(vma, vma->vm_start, vma->vm_end); + if (!tlb->fullmm && tlb->range_end > 0) + flush_tlb_range(vma, tlb->range_start, tlb->range_end); } #define tlb_remove_page(tlb,page) free_page_and_swap_cache(page) diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 010618487cf..94cc58ef61a 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -387,6 +387,8 @@ #define __NR_dup3 (__NR_SYSCALL_BASE+358) #define __NR_pipe2 (__NR_SYSCALL_BASE+359) #define __NR_inotify_init1 (__NR_SYSCALL_BASE+360) +#define __NR_preadv (__NR_SYSCALL_BASE+361) +#define __NR_pwritev (__NR_SYSCALL_BASE+362) /* * The following SWIs are ARM private. |