diff options
| author | Gavin Shan <gshan@redhat.com> | 2024-04-05 13:58:52 +1000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-04-11 11:42:57 +0100 |
| commit | 73301e464a72a0d007d0d4e0f4d3dab5c58125bf (patch) | |
| tree | 906890eb620c99dd29e7612ec905d090198c030d | |
| parent | e07255d69702bc9131427fda8f9749355b10780f (diff) | |
| download | linux-for-next/tlbi.tar.gz | |
arm64: tlb: Allow range operation for MAX_TLBI_RANGE_PAGESfor-next/tlbi
MAX_TLBI_RANGE_PAGES pages is covered by SCALE#3 and NUM#31 and it's
supported now. Allow TLBI RANGE operation when the number of pages is
equal to MAX_TLBI_RANGE_PAGES in __flush_tlb_range_nosync().
Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Link: https://lore.kernel.org/r/20240405035852.1532010-4-gshan@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/tlbflush.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 243d71f7bc1f66..95fbc8c0560798 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -446,11 +446,11 @@ static inline void __flush_tlb_range_nosync(struct vm_area_struct *vma, * When not uses TLB range ops, we can handle up to * (MAX_DVM_OPS - 1) pages; * When uses TLB range ops, we can handle up to - * (MAX_TLBI_RANGE_PAGES - 1) pages. + * MAX_TLBI_RANGE_PAGES pages. */ if ((!system_supports_tlb_range() && (end - start) >= (MAX_DVM_OPS * stride)) || - pages >= MAX_TLBI_RANGE_PAGES) { + pages > MAX_TLBI_RANGE_PAGES) { flush_tlb_mm(vma->vm_mm); return; } |