riscv: Improve tlb_flush()

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For now, tlb_flush() simply calls flush_tlb_mm() which results in a
flush of the whole TLB. So let's use mmu_gather fields to provide a more
fine-grained flush of the TLB.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # On RZ/Five SMARC
Link: https://lore.kernel.org/r/20231030133027.19542-2-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

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Alexandre Ghiti 2023-10-30 14:30:25 +01:00 • committed by Palmer Dabbelt

parent 0bb80ecc33

commit c5e9b2c2ae

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3 changed files with 17 additions and 1 deletions

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8

arch/riscv/include/asm/tlb.h

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3

arch/riscv/include/asm/tlbflush.h

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7

arch/riscv/mm/tlbflush.c

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