riscv: Flush the tlb when a page directory is freed

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The riscv privileged specification mandates to flush the TLB whenever a
page directory is modified, so add that to tlb_flush().

Fixes: c5e9b2c2ae ("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>

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Alexandre Ghiti 2024-01-28 13:04:05 +01:00 • committed by Palmer Dabbelt

parent 168b849728

commit 97cf301fa4

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arch/riscv/include/asm/tlb.h

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