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Diffstat (limited to 'arch/arm64/include/asm/tlbflush.h')
-rw-r--r--arch/arm64/include/asm/tlbflush.h45
1 files changed, 20 insertions, 25 deletions
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index fca74efe1fc5..9a9152dc868e 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -83,7 +83,7 @@ static inline void flush_tlb_all(void)
static inline void flush_tlb_mm(struct mm_struct *mm)
{
- unsigned long asid = (unsigned long)ASID(mm) << 48;
+ unsigned long asid = ASID(mm) << 48;
dsb(ishst);
asm("tlbi aside1is, %0" : : "r" (asid));
@@ -93,11 +93,10 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
static inline void flush_tlb_page(struct vm_area_struct *vma,
unsigned long uaddr)
{
- unsigned long addr = uaddr >> 12 |
- ((unsigned long)ASID(vma->vm_mm) << 48);
+ unsigned long addr = uaddr >> 12 | (ASID(vma->vm_mm) << 48);
dsb(ishst);
- asm("tlbi vae1is, %0" : : "r" (addr));
+ asm("tlbi vale1is, %0" : : "r" (addr));
dsb(ish);
}
@@ -107,10 +106,11 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
*/
#define MAX_TLB_RANGE (1024UL << PAGE_SHIFT)
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+static inline void __flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end,
+ bool last_level)
{
- unsigned long asid = (unsigned long)ASID(vma->vm_mm) << 48;
+ unsigned long asid = ASID(vma->vm_mm) << 48;
unsigned long addr;
if ((end - start) > MAX_TLB_RANGE) {
@@ -122,11 +122,21 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
end = asid | (end >> 12);
dsb(ishst);
- for (addr = start; addr < end; addr += 1 << (PAGE_SHIFT - 12))
- asm("tlbi vae1is, %0" : : "r"(addr));
+ for (addr = start; addr < end; addr += 1 << (PAGE_SHIFT - 12)) {
+ if (last_level)
+ asm("tlbi vale1is, %0" : : "r"(addr));
+ else
+ asm("tlbi vae1is, %0" : : "r"(addr));
+ }
dsb(ish);
}
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end)
+{
+ __flush_tlb_range(vma, start, end, false);
+}
+
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
unsigned long addr;
@@ -153,26 +163,11 @@ static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end
static inline void __flush_tlb_pgtable(struct mm_struct *mm,
unsigned long uaddr)
{
- unsigned long addr = uaddr >> 12 | ((unsigned long)ASID(mm) << 48);
+ unsigned long addr = uaddr >> 12 | (ASID(mm) << 48);
- dsb(ishst);
asm("tlbi vae1is, %0" : : "r" (addr));
dsb(ish);
}
-/*
- * On AArch64, the cache coherency is handled via the set_pte_at() function.
- */
-static inline void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long addr, pte_t *ptep)
-{
- /*
- * set_pte() does not have a DSB for user mappings, so make sure that
- * the page table write is visible.
- */
- dsb(ishst);
-}
-
-#define update_mmu_cache_pmd(vma, address, pmd) do { } while (0)
#endif