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Wed, 15 Jul 2026 06:20:16 -0700 (PDT) From: Xu Lu To: paul.walmsley@sifive.com, klarasmodin@gmail.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, apw@canonical.com, joe@perches.com, Xu Lu Subject: [PATCH v2 0/3] riscv: mm: Some optimizations for tlb flush Date: Wed, 15 Jul 2026 21:20:06 +0800 Message-ID: <20260715132009.10634-1-luxu.kernel@bytedance.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Some optimizations for tlb flush on RISC-V smp: 1. Apply Svinval in update_mmu_cache() to avoid flushing irrelevant tlb entries. 2. Clear bit of current cpu in mm_cpumask after local_flush_tlb_all_asid() to avoid potential IPIs in the future. Some false positive spacing error happens during patch checking. Thus I CCed maintainers of checkpatch.pl as well. Changes in V2: 1. Split the modification on update_mmu_cache() into two commits. Thanks to Paul. 2. Fix address errors in the svinval processing path in V1. Thanks to Klara. Xu Lu (3): riscv: mm: Use ASID in update_mmu_cache() riscv: mm: Apply Svinval in update_mmu_cache() riscv: mm: Clear cpu in mm_cpumask after local_flush_tlb_all_asid arch/riscv/include/asm/pgtable.h | 12 +++++- arch/riscv/include/asm/tlbflush.h | 23 +++++++++++ arch/riscv/mm/tlbflush.c | 64 ++++++++++++------------------- 3 files changed, 59 insertions(+), 40 deletions(-) -- 2.39.5