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[2.7.42.160]) by smtp.gmail.com with ESMTPSA id g12-20020a05600c310c00b003db012d49b7sm6028511wmo.2.2023.01.25.00.12.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Jan 2023 00:12:16 -0800 (PST) From: Alexandre Ghiti To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , Rob Herring , Frank Rowand , Conor Dooley , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org Cc: Alexandre Ghiti Subject: [PATCH v5 0/2] riscv: Use PUD/P4D/PGD pages for the linear mapping Date: Wed, 25 Jan 2023 09:12:12 +0100 Message-Id: <20230125081214.1576313-1-alexghiti@rivosinc.com> X-Mailer: git-send-email 2.37.2 MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1755981457107459088?= X-GMAIL-MSGID: =?utf-8?q?1755981457107459088?= This patchset intends to improve tlb utilization by using hugepages for the linear mapping. v5: - Fix nommu builds by getting rid of riscv_pfn_base in patch 1, thanks Conor - Add RB from Andre v4: - Rebase on top of v6.2-rc3, as noted by Conor - Add Acked-by Rob v3: - Change the comment about initrd_start VA conversion so that it fits ARM64 and RISCV64 (and others in the future if needed), as suggested by Rob v2: - Add a comment on why RISCV64 does not need to set initrd_start/end that early in the boot process, as asked by Rob Alexandre Ghiti (2): riscv: Get rid of riscv_pfn_base variable riscv: Use PUD/P4D/PGD pages for the linear mapping arch/riscv/include/asm/page.h | 19 +++++++++++++++++-- arch/riscv/mm/init.c | 28 ++++++++++++++++++---------- arch/riscv/mm/physaddr.c | 16 ++++++++++++++++ drivers/of/fdt.c | 11 ++++++----- 4 files changed, 57 insertions(+), 17 deletions(-)