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{ "id": 2230810, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2230810/?format=api", "web_url": "http://patchwork.ozlabs.org/project/opensbi/cover/20260430045528.420437-1-npiggin@gmail.com/", "project": { "id": 67, "url": "http://patchwork.ozlabs.org/api/1.1/projects/67/?format=api", "name": "OpenSBI development", "link_name": "opensbi", "list_id": "opensbi.lists.infradead.org", "list_email": "opensbi@lists.infradead.org", "web_url": "https://github.com/riscv/opensbi", "scm_url": "", "webscm_url": "" }, "msgid": "<20260430045528.420437-1-npiggin@gmail.com>", "date": "2026-04-30T04:55:17", "name": "[0/7] Make PMP encoding usable for non-hart PMPs", "submitter": { "id": 69518, "url": "http://patchwork.ozlabs.org/api/1.1/people/69518/?format=api", "name": "Nicholas Piggin", "email": "npiggin@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/opensbi/cover/20260430045528.420437-1-npiggin@gmail.com/mbox/", "series": [ { "id": 502193, "url": "http://patchwork.ozlabs.org/api/1.1/series/502193/?format=api", "web_url": "http://patchwork.ozlabs.org/project/opensbi/list/?series=502193", "date": "2026-04-30T04:55:18", "name": "Make PMP encoding usable for non-hart PMPs", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502193/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2230810/comments/", "headers": { "Return-Path": "\n <opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=oeSnYFd5;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=P3Zy/jWS;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: The Tenstorrent RISC-V IOMMU implements PMPs with MMRs in\n the same format as specified in the RISC-V ISA for the hart CSRs. This\n series\n splits out the PMP encoding functions so it can be shared by bot [...]\n Content analysis details: (-2.1 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [2607:f8b0:4864:20:0:0:0:435 listed in]\n [list.dnswl.org]\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail\n provider\n [npiggin(at)gmail.com]", "X-BeenThere": "opensbi@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<opensbi.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/opensbi>,\n <mailto:opensbi-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/opensbi/>", "List-Post": "<mailto:opensbi@lists.infradead.org>", "List-Help": "<mailto:opensbi-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/opensbi>,\n <mailto:opensbi-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"opensbi\" <opensbi-bounces@lists.infradead.org>", "Errors-To": "opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "The Tenstorrent RISC-V IOMMU implements PMPs with MMRs in the same\nformat as specified in the RISC-V ISA for the hart CSRs. This series\nsplits out the PMP encoding functions so it can be shared by both\nusers.\n\nI moved this series out of the Tenstorrent Atlantis platform series\nthat included IOMMU support, tried to do better at splitting it up,\ntidied and improved code.\n\nThe new user of the API can be seen here for reference (will not\nquite compile with this new series):\n\nhttps://lore.kernel.org/opensbi/20260310005000.3837512-4-npiggin@gmail.com/\n\nI will post that one out again after the base Atlantis platform and\nthis series is merged.\n\nThanks,\nNick\n\nNicholas Piggin (7):\n lib: sbi: Introduce pmp_t type\n lib: sbi: split PMP encoding and CSR access\n lib: sbi: Move RISC-V PMP encoding functions to sbi_pmp.c\n lib: sbi: Add PMP CSR read and write accessors\n lib: sbi: Add pmp_is_enabled() helper\n lib: sbi: Add hart_ prefix to PMP functions\n lib: sbi: Move hart PMP functions to sbi_hart_pmp.c\n\n include/sbi/riscv_asm.h | 12 ---\n include/sbi/sbi_hart_pmp.h | 12 +++\n include/sbi/sbi_pmp.h | 23 +++++\n lib/sbi/objects.mk | 1 +\n lib/sbi/riscv_asm.c | 162 +------------------------------\n lib/sbi/sbi_hart_pmp.c | 128 ++++++++++++++++++++++--\n lib/sbi/sbi_pmp.c | 105 ++++++++++++++++++++\n platform/generic/eswin/eic770x.c | 36 +++----\n 8 files changed, 279 insertions(+), 200 deletions(-)\n create mode 100644 include/sbi/sbi_pmp.h\n create mode 100644 lib/sbi/sbi_pmp.c" }