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GET /api/patches/2226587/?format=api
{ "id": 2226587, "url": "http://patchwork.ozlabs.org/api/patches/2226587/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260422161407.118748-20-kwilczynski@kernel.org/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260422161407.118748-20-kwilczynski@kernel.org>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260422161407.118748-20-kwilczynski@kernel.org/", "date": "2026-04-22T16:14:02", "name": "[v6,19/24] PCI: Add macros for legacy I/O and memory address space sizes", "commit_ref": null, "pull_url": null, "state": "handled-elsewhere", "archived": false, "hash": "91539e604feebb67e91d99f7a9add8a52f4fe953", "submitter": { "id": 86709, "url": "http://patchwork.ozlabs.org/api/people/86709/?format=api", "name": "Krzysztof Wilczyński", "email": "kwilczynski@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260422161407.118748-20-kwilczynski@kernel.org/mbox/", "series": [ { "id": 501040, "url": "http://patchwork.ozlabs.org/api/series/501040/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501040", "date": "2026-04-22T16:13:43", "name": "[v6,01/24] PCI/sysfs: Use PCI resource accessor macros", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/501040/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226587/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226587/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19967-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=D5CcSfMH;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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Thu, 23 Apr 2026 02:16:52 +1000 (AEST)", "from boromir.ozlabs.org (localhost [127.0.0.1])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 4g147x5B8vz3cBP;\n\tThu, 23 Apr 2026 02:15:25 +1000 (AEST)", "from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 4g147r5qBZz3btw\n\tfor <linuxppc-dev@lists.ozlabs.org>; Thu, 23 Apr 2026 02:15:20 +1000 (AEST)", "from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58])\n\tby tor.source.kernel.org (Postfix) with ESMTP id EC2406012A;\n\tWed, 22 Apr 2026 16:15:18 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 8C21CC19425;\n\tWed, 22 Apr 2026 16:15:15 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1776874525;\n\tcv=none;\n b=nwGcVOLvVHl6notaSm9MwGeGuD3OG8xgFfmegLsVRuaUZb+dIWdIpD6jTB5hg2ULjgowU2nFoasU4L+3i9lpKL2IF/jcOXCqQ+HNUKzATWRNNRPCTm9e/dql8UxkaXwN8Rz+9IaUmVEX/tXeH46ESvSwVSvHU5e7AySg6LLRl68vb27IselYGHHqKtaqi4V2L4/ujxMPzdMtSHCLFmWiJGu9lK0TMrjMMY4HpAOrkN0S/UDNMVozkhNEX7s1mT/7c5wqGRRCHAdAfZo18TlUnoVmZNz01CXMCLO7oPzbt95UZ6+EyTtSMHqMLANtE8N5K1gl0Nj2uT2ZFP9xihDvVg==", "ARC-Message-Signature": "i=1; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776874518;\n\tbh=dijWWutmL7JHzGDHtujgmiIt1pal0+qTFGDBt404M9U=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=D5CcSfMHYCKVSxhdvGoAFxTAB3raXTVVyvqAkhMcNEcUyBzMCPOuAML6zE5POqQjk\n\t +C6Oi6Rz9HMP4+964KHpXS8PSMEvo9qn/cxW75QNkJt/s2znl4b4lrZku29O42/AVD\n\t pk4GGDiqhjSo8CLN1kSxG3VSN72chC7cd7TmhL9g+KbIWBtScDUcXwsYDqwd74TtmO\n\t rHceuuE6GWaXMdYW+nirk6x4J1U4WArg0Nz1HYruqRTm89YPyFf74rtjMqEypkT6GP\n\t S9YG3MPy0eoObeOOneh+wS1gAJNNcvURBBHBTxY0GIyRyMDG4iaPMJNu0v8iFLfPVV\n\t S9Xr8i1MxTAyw==", "From": "=?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kwilczynski@kernel.org>", "To": "Bjorn Helgaas <bhelgaas@google.com>", "Cc": "Bjorn Helgaas <helgaas@kernel.org>,\n Manivannan Sadhasivam <mani@kernel.org>,\n Lorenzo Pieralisi <lpieralisi@kernel.org>,\n Magnus Lindholm <linmag7@gmail.com>, Matt Turner <mattst88@gmail.com>,\n Richard Henderson <richard.henderson@linaro.org>,\n Christophe Leroy <chleroy@kernel.org>,\n Madhavan Srinivasan <maddy@linux.ibm.com>,\n Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>,\n Dexuan Cui <decui@microsoft.com>,\n =?utf-8?q?Krzysztof_Ha=C5=82asa?= <khalasa@piap.pl>,\n Lukas Wunner <lukas@wunner.de>, \"Oliver O'Halloran\" <oohall@gmail.com>,\n Saurabh Singh Sengar <ssengar@microsoft.com>,\n Shuan He <heshuan@bytedance.com>, Srivatsa Bhat <srivatsabhat@microsoft.com>,\n\t=?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,\n linux-pci@vger.kernel.org, linux-alpha@vger.kernel.org,\n linuxppc-dev@lists.ozlabs.org", "Subject": "[PATCH v6 19/24] PCI: Add macros for legacy I/O and memory address\n space sizes", "Date": "Wed, 22 Apr 2026 16:14:02 +0000", "Message-ID": "<20260422161407.118748-20-kwilczynski@kernel.org>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260422161407.118748-1-kwilczynski@kernel.org>", "References": "<20260422161407.118748-1-kwilczynski@kernel.org>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-Spam-Status": "No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Add defines for the standard PCI legacy address space sizes,\nreplacing the raw literals used by the legacy sysfs attributes.\n\nThen, replace open-coded values with the newly added macros.\n\nNo functional changes intended.\n\nSuggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>\nSigned-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>\n---\n drivers/pci/pci-sysfs.c | 4 ++--\n include/linux/pci.h | 5 +++++\n 2 files changed, 7 insertions(+), 2 deletions(-)", "diff": "diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c\nindex 3a7bbb00ca60..ad8ee192c94b 100644\n--- a/drivers/pci/pci-sysfs.c\n+++ b/drivers/pci/pci-sysfs.c\n@@ -1055,7 +1055,7 @@ void pci_create_legacy_files(struct pci_bus *b)\n \n \tsysfs_bin_attr_init(b->legacy_io);\n \tb->legacy_io->attr.name = \"legacy_io\";\n-\tb->legacy_io->size = 0xffff;\n+\tb->legacy_io->size = PCI_LEGACY_IO_SIZE;\n \tb->legacy_io->attr.mode = 0600;\n \tb->legacy_io->read = pci_read_legacy_io;\n \tb->legacy_io->write = pci_write_legacy_io;\n@@ -1072,7 +1072,7 @@ void pci_create_legacy_files(struct pci_bus *b)\n \tb->legacy_mem = b->legacy_io + 1;\n \tsysfs_bin_attr_init(b->legacy_mem);\n \tb->legacy_mem->attr.name = \"legacy_mem\";\n-\tb->legacy_mem->size = 1024*1024;\n+\tb->legacy_mem->size = PCI_LEGACY_MEM_SIZE;\n \tb->legacy_mem->attr.mode = 0600;\n \tb->legacy_mem->mmap = pci_mmap_legacy_mem;\n \t/* See pci_create_attr() for motivation */\ndiff --git a/include/linux/pci.h b/include/linux/pci.h\nindex f6f55005f82d..6b630bac8c08 100644\n--- a/include/linux/pci.h\n+++ b/include/linux/pci.h\n@@ -27,6 +27,7 @@\n #include <linux/mod_devicetable.h>\n \n #include <linux/types.h>\n+#include <linux/sizes.h>\n #include <linux/init.h>\n #include <linux/ioport.h>\n #include <linux/list.h>\n@@ -1167,6 +1168,10 @@ enum {\n /* These external functions are only available when PCI support is enabled */\n #ifdef CONFIG_PCI\n \n+/* PCI legacy I/O port and memory address space sizes. */\n+#define PCI_LEGACY_IO_SIZE\t(SZ_64K - 1)\n+#define PCI_LEGACY_MEM_SIZE\tSZ_1M\n+\n extern unsigned int pci_flags;\n \n static inline void pci_set_flags(int flags) { pci_flags = flags; }\n", "prefixes": [ "v6", "19/24" ] }