Added update_mmu_tlb_range(), we can batch update tlb of an
address range.
Signed-off-by: Bang Li <libang.li@xxxxxxxxxxxx>
---
arch/loongarch/include/asm/pgtable.h | 2 ++
arch/mips/include/asm/pgtable.h | 2 ++
arch/riscv/include/asm/pgtable.h | 2 ++
arch/xtensa/include/asm/pgtable.h | 3 +++
arch/xtensa/mm/tlb.c | 6 ++++++
include/linux/pgtable.h | 7 +++++++
6 files changed, 22 insertions(+)
diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index af3acdf3481a..5ccc2a3a6f7a 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -469,6 +469,8 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
#define __HAVE_ARCH_UPDATE_MMU_TLB
#define update_mmu_tlb update_mmu_cache
+#define update_mmu_tlb_range(vma, addr, ptep, nr) \
+ update_mmu_cache_range(NULL, vma, addr, ptep, nr)
static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp)
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index e27a4c83c548..0891ad7d43b6 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -596,6 +596,8 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
#define __HAVE_ARCH_UPDATE_MMU_TLB
#define update_mmu_tlb update_mmu_cache
+#define update_mmu_tlb_range(vma, address, ptep, nr) \
+ update_mmu_cache_range(NULL, vma, address, ptep, nr)
static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp)
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 55a7c3ec246b..4630815b0253 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -491,6 +491,8 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
#define __HAVE_ARCH_UPDATE_MMU_TLB
#define update_mmu_tlb update_mmu_cache
+#define update_mmu_tlb_range(vma, addr, ptep, nr) \
+ update_mmu_cache_range(NULL, vma, addr, ptep, nr)
static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp)
diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h
index 9a7e5e57ee9a..436158bd9030 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -413,6 +413,9 @@ typedef pte_t *pte_addr_t;
void update_mmu_tlb(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep);
#define __HAVE_ARCH_UPDATE_MMU_TLB
+void update_mmu_tlb_range(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep, unsigned int nr);
+#define update_mmu_tlb_range update_mmu_tlb_range
#endif /* !defined (__ASSEMBLY__) */
diff --git a/arch/xtensa/mm/tlb.c b/arch/xtensa/mm/tlb.c
index d8b60d6e50a8..05efba86b870 100644
--- a/arch/xtensa/mm/tlb.c
+++ b/arch/xtensa/mm/tlb.c
@@ -169,6 +169,12 @@ void update_mmu_tlb(struct vm_area_struct *vma,
local_flush_tlb_page(vma, address);
}
+void update_mmu_tlb_range(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep, unsigned int nr)
+{
+ local_flush_tlb_range(vma, address, address + PAGE_SIZE * nr);
+}
+
#ifdef CONFIG_DEBUG_TLB_SANITY
static unsigned get_pte_for_vaddr(unsigned vaddr)
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 18019f037bae..17d1caee39ab 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -729,6 +729,13 @@ static inline void clear_full_ptes(struct mm_struct *mm, unsigned long addr,
* fault. This function updates TLB only, do nothing with cache or others.
* It is the difference with function update_mmu_cache.
*/
+#ifndef update_mmu_tlb_range
+static inline void update_mmu_tlb_range(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep, unsigned int nr)
+{
+}
+#endif
+
#ifndef __HAVE_ARCH_UPDATE_MMU_TLB
static inline void update_mmu_tlb(struct vm_area_struct *vma,
unsigned long address, pte_t *ptep)
--
2.19.1.6.gb485710b
