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| author | Nanyong Sun <sunnanyong@huawei.com> | 2021-04-30 11:28:49 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-05-22 20:19:47 +0300 |
| commit | c3b2d67046d236edb45eed5ca561c62ee7baa788 (patch) | |
| tree | e192f06421777beb6d55271ba7fa0b3c83cb5abc /arch | |
| parent | 141682f5b9d658b5fba7c33cf8574329a7840cdc (diff) | |
| download | linux-c3b2d67046d236edb45eed5ca561c62ee7baa788.tar.xz | |
riscv: mm: add param stride for __sbi_tlb_flush_range
Add a parameter: stride for __sbi_tlb_flush_range(),
represent the page stride between the address of start and end.
Normally, the stride is PAGE_SIZE, and when flush huge page
address, the stride can be the huge page size such as:PMD_SIZE,
then it only need to flush one tlb entry if the address range
within PMD_SIZE.
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/mm/tlbflush.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/riscv/mm/tlbflush.c b/arch/riscv/mm/tlbflush.c index 720b443c4528..382781abffd0 100644 --- a/arch/riscv/mm/tlbflush.c +++ b/arch/riscv/mm/tlbflush.c @@ -15,7 +15,7 @@ void flush_tlb_all(void) * Kernel may panic if cmask is NULL. */ static void __sbi_tlb_flush_range(struct cpumask *cmask, unsigned long start, - unsigned long size) + unsigned long size, unsigned long stride) { struct cpumask hmask; unsigned int cpuid; @@ -27,7 +27,7 @@ static void __sbi_tlb_flush_range(struct cpumask *cmask, unsigned long start, if (cpumask_any_but(cmask, cpuid) >= nr_cpu_ids) { /* local cpu is the only cpu present in cpumask */ - if (size <= PAGE_SIZE) + if (size <= stride) local_flush_tlb_page(start); else local_flush_tlb_all(); @@ -41,16 +41,16 @@ static void __sbi_tlb_flush_range(struct cpumask *cmask, unsigned long start, void flush_tlb_mm(struct mm_struct *mm) { - __sbi_tlb_flush_range(mm_cpumask(mm), 0, -1); + __sbi_tlb_flush_range(mm_cpumask(mm), 0, -1, PAGE_SIZE); } void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) { - __sbi_tlb_flush_range(mm_cpumask(vma->vm_mm), addr, PAGE_SIZE); + __sbi_tlb_flush_range(mm_cpumask(vma->vm_mm), addr, PAGE_SIZE, PAGE_SIZE); } void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - __sbi_tlb_flush_range(mm_cpumask(vma->vm_mm), start, end - start); + __sbi_tlb_flush_range(mm_cpumask(vma->vm_mm), start, end - start, PAGE_SIZE); } |