From: Samuel Holland <samuel@sholland.org> To: Palmer Dabbelt <palmer@dabbelt.com>, Alexandre Ghiti <alexghiti@rivosinc.com>, linux-riscv@lists.infradead.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Samuel Holland <samuel@sholland.org> Subject: [PATCH 0/7] riscv: ASID-related and UP-related TLB flush enhancements Date: Sat, 9 Sep 2023 15:16:28 -0500 [thread overview] Message-ID: <20230909201727.10909-1-samuel@sholland.org> (raw) While reviewing Alexandre Ghiti's "riscv: tlb flush improvements" series[1], I noticed that the TLB flushing functions mostly end up as flush_tlb_all() when SMP is disabled. This series resolves that. Along the way, I realized that we should be using single-ASID flushes wherever possible, so I implemented that as well. This series is mostly orthogonal to Alexandre's series, though it does remove the non-ASID code path from tlbflush.c, which turns out to be required for flush_tlb_kernel_range(). [1]: https://lore.kernel.org/linux-riscv/20230801085402.1168351-1-alexghiti@rivosinc.com/ Samuel Holland (7): riscv: Apply SiFive CIP-1200 workaround to single-ASID sfence.vma riscv: mm: Introduce cntx2asid/cntx2version helper macros riscv: mm: Use a fixed layout for the MM context ID riscv: mm: Make asid_bits a local variable riscv: mm: Preserve global TLB entries when switching contexts riscv: mm: Always flush a single MM context by ASID riscv: mm: Combine the SMP and non-SMP TLB flushing code arch/riscv/include/asm/errata_list.h | 12 +++- arch/riscv/include/asm/mmu.h | 3 + arch/riscv/include/asm/mmu_context.h | 2 - arch/riscv/include/asm/tlbflush.h | 41 ++++++------- arch/riscv/mm/Makefile | 5 +- arch/riscv/mm/context.c | 26 ++++---- arch/riscv/mm/tlbflush.c | 92 +++++++--------------------- 7 files changed, 67 insertions(+), 114 deletions(-) -- 2.41.0
WARNING: multiple messages have this Message-ID (diff)
From: Samuel Holland <samuel@sholland.org> To: Palmer Dabbelt <palmer@dabbelt.com>, Alexandre Ghiti <alexghiti@rivosinc.com>, linux-riscv@lists.infradead.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Samuel Holland <samuel@sholland.org> Subject: [PATCH 0/7] riscv: ASID-related and UP-related TLB flush enhancements Date: Sat, 9 Sep 2023 15:16:28 -0500 [thread overview] Message-ID: <20230909201727.10909-1-samuel@sholland.org> (raw) While reviewing Alexandre Ghiti's "riscv: tlb flush improvements" series[1], I noticed that the TLB flushing functions mostly end up as flush_tlb_all() when SMP is disabled. This series resolves that. Along the way, I realized that we should be using single-ASID flushes wherever possible, so I implemented that as well. This series is mostly orthogonal to Alexandre's series, though it does remove the non-ASID code path from tlbflush.c, which turns out to be required for flush_tlb_kernel_range(). [1]: https://lore.kernel.org/linux-riscv/20230801085402.1168351-1-alexghiti@rivosinc.com/ Samuel Holland (7): riscv: Apply SiFive CIP-1200 workaround to single-ASID sfence.vma riscv: mm: Introduce cntx2asid/cntx2version helper macros riscv: mm: Use a fixed layout for the MM context ID riscv: mm: Make asid_bits a local variable riscv: mm: Preserve global TLB entries when switching contexts riscv: mm: Always flush a single MM context by ASID riscv: mm: Combine the SMP and non-SMP TLB flushing code arch/riscv/include/asm/errata_list.h | 12 +++- arch/riscv/include/asm/mmu.h | 3 + arch/riscv/include/asm/mmu_context.h | 2 - arch/riscv/include/asm/tlbflush.h | 41 ++++++------- arch/riscv/mm/Makefile | 5 +- arch/riscv/mm/context.c | 26 ++++---- arch/riscv/mm/tlbflush.c | 92 +++++++--------------------- 7 files changed, 67 insertions(+), 114 deletions(-) -- 2.41.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next reply other threads:[~2023-09-09 20:17 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-09-09 20:16 Samuel Holland [this message] 2023-09-09 20:16 ` [PATCH 0/7] riscv: ASID-related and UP-related TLB flush enhancements Samuel Holland 2023-09-09 20:16 ` [PATCH 1/7] riscv: Apply SiFive CIP-1200 workaround to single-ASID sfence.vma Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 20:16 ` [PATCH 2/7] riscv: mm: Introduce cntx2asid/cntx2version helper macros Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 20:16 ` [PATCH 3/7] riscv: mm: Use a fixed layout for the MM context ID Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 20:16 ` [PATCH 4/7] riscv: mm: Make asid_bits a local variable Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 20:16 ` [PATCH 5/7] riscv: mm: Preserve global TLB entries when switching contexts Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 20:16 ` [PATCH 6/7] riscv: mm: Always flush a single MM context by ASID Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-10 19:46 ` Conor Dooley 2023-09-10 19:46 ` Conor Dooley 2023-10-26 15:53 ` Palmer Dabbelt 2023-10-26 15:53 ` Palmer Dabbelt 2023-09-09 20:16 ` [PATCH 7/7] riscv: mm: Combine the SMP and non-SMP TLB flushing code Samuel Holland 2023-09-09 20:16 ` Samuel Holland 2023-09-09 23:02 ` kernel test robot 2023-09-09 23:02 ` kernel test robot 2023-09-11 22:08 ` kernel test robot 2023-09-11 22:08 ` kernel test robot 2023-09-12 2:03 ` kernel test robot 2023-09-12 2:03 ` kernel test robot
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20230909201727.10909-1-samuel@sholland.org \ --to=samuel@sholland.org \ --cc=alexghiti@rivosinc.com \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=linux-riscv@lists.infradead.org \ --cc=palmer@dabbelt.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.