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authorH. Peter Anvin <hpa@zytor.com>2009-05-23 16:42:19 -0700
committerH. Peter Anvin <hpa@zytor.com>2009-05-23 16:42:19 -0700
commitee0736627d3347be0be2769fa7b26431f9726c9d (patch)
tree203e2204daaec4cf005463fdf2c7bf380d6eef36 /arch/arm/include
parentcf9972a921470b0a2da7906104bcd540b20e33bf (diff)
parent0af48f42df15b97080b450d24219dd95db7b929a (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.h16
-rw-r--r--arch/arm/include/asm/tlb.h25
-rw-r--r--arch/arm/include/asm/unistd.h2
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.