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Diffstat (limited to 'arch/arm64/include/asm/tlbflush.h')
-rw-r--r--arch/arm64/include/asm/tlbflush.h76
1 files changed, 34 insertions, 42 deletions
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index 934815d45eda..7bd2da021658 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -87,27 +87,56 @@ static inline void flush_tlb_page(struct vm_area_struct *vma,
((unsigned long)ASID(vma->vm_mm) << 48);
dsb(ishst);
- asm("tlbi vae1is, %0" : : "r" (addr));
+ asm("tlbi vale1is, %0" : : "r" (addr));
dsb(ish);
}
+/*
+ * This is meant to avoid soft lock-ups on large TLB flushing ranges and not
+ * necessarily a performance improvement.
+ */
+#define MAX_TLB_RANGE (1024UL << PAGE_SHIFT)
+
static inline void __flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+ unsigned long start, unsigned long end,
+ bool last_level)
{
unsigned long asid = (unsigned long)ASID(vma->vm_mm) << 48;
unsigned long addr;
+
+ if ((end - start) > MAX_TLB_RANGE) {
+ flush_tlb_mm(vma->vm_mm);
+ return;
+ }
+
start = asid | (start >> 12);
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_kernel_range(unsigned long start, unsigned long end)
+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;
+
+ if ((end - start) > MAX_TLB_RANGE) {
+ flush_tlb_all();
+ return;
+ }
+
start >>= 12;
end >>= 12;
@@ -119,29 +148,6 @@ static inline void __flush_tlb_kernel_range(unsigned long start, unsigned long e
}
/*
- * This is meant to avoid soft lock-ups on large TLB flushing ranges and not
- * necessarily a performance improvement.
- */
-#define MAX_TLB_RANGE (1024UL << PAGE_SHIFT)
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
-{
- if ((end - start) <= MAX_TLB_RANGE)
- __flush_tlb_range(vma, start, end);
- else
- flush_tlb_mm(vma->vm_mm);
-}
-
-static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
- if ((end - start) <= MAX_TLB_RANGE)
- __flush_tlb_kernel_range(start, end);
- else
- flush_tlb_all();
-}
-
-/*
* Used to invalidate the TLB (walk caches) corresponding to intermediate page
* table levels (pgd/pud/pmd).
*/
@@ -154,20 +160,6 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
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