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authorAlexandre Ghiti <alexghiti@rivosinc.com>2024-01-28 13:04:05 +0100
committerPalmer Dabbelt <palmer@rivosinc.com>2024-02-06 16:57:16 -0800
commit97cf301fa42e8ea6e0a24de97bc0abcdc87d9504 (patch)
treee77cdffeafcce5dc02c867ebf41498bbcd42e55e /arch
parent168b849728c2c47ddaab1408049561100bb7ea51 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/riscv/include/asm/tlb.h2
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,