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| author | Alexandre Ghiti <alexghiti@rivosinc.com> | 2024-01-28 13:04:05 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2024-02-07 01:57:16 +0100 |
| commit | 97cf301fa42e8ea6e0a24de97bc0abcdc87d9504 (patch) | |
| tree | e77cdffeafcce5dc02c867ebf41498bbcd42e55e | |
| parent | Merge patch series "svnapot fixes" (diff) | |
| download | linux-97cf301fa42e8ea6e0a24de97bc0abcdc87d9504.tar.xz linux-97cf301fa42e8ea6e0a24de97bc0abcdc87d9504.zip | |
riscv: Flush the tlb when a page directory is freed
The riscv privileged specification mandates to flush the TLB whenever a
page directory is modified, so add that to tlb_flush().
Fixes: c5e9b2c2ae82 ("riscv: Improve tlb_flush()")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240128120405.25876-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| -rw-r--r-- | arch/riscv/include/asm/tlb.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/tlb.h b/arch/riscv/include/asm/tlb.h index 1eb5682b2af6..50b63b5c15bd 100644 --- a/arch/riscv/include/asm/tlb.h +++ b/arch/riscv/include/asm/tlb.h @@ -16,7 +16,7 @@ static void tlb_flush(struct mmu_gather *tlb); static inline void tlb_flush(struct mmu_gather *tlb) { #ifdef CONFIG_MMU - if (tlb->fullmm || tlb->need_flush_all) + if (tlb->fullmm || tlb->need_flush_all || tlb->freed_tables) flush_tlb_mm(tlb->mm); else flush_tlb_mm_range(tlb->mm, tlb->start, tlb->end, |