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GET /api/patches/2224071/?format=api
{ "id": 2224071, "url": "http://patchwork.ozlabs.org/api/patches/2224071/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260416180107.777065-20-kwilczynski@kernel.org/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260416180107.777065-20-kwilczynski@kernel.org>", "list_archive_url": null, "date": "2026-04-16T18:01:03", "name": "[v5,19/23] PCI: Add macros for legacy I/O and memory address space sizes", "commit_ref": null, "pull_url": null, "state": "new", "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/linux-pci/patch/20260416180107.777065-20-kwilczynski@kernel.org/mbox/", "series": [ { "id": 500193, "url": "http://patchwork.ozlabs.org/api/series/500193/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=500193", "date": "2026-04-16T18:00:44", "name": "PCI: Convert all dynamic sysfs attributes to static", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/500193/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224071/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224071/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-52643-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pci@vger.kernel.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=AXa5ai8R;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52643-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"AXa5ai8R\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\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 legolas.ozlabs.org (Postfix) with ESMTPS id 4fxQpb3Bmxz1yD3\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 17 Apr 2026 04:02:47 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 6775030285F6\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 16 Apr 2026 18:02:21 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id C2F282556E;\n\tThu, 16 Apr 2026 18:02:20 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id A07E21514F8;\n\tThu, 16 Apr 2026 18:02:20 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 240FDC2BCAF;\n\tThu, 16 Apr 2026 18:02:17 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776362540; cv=none;\n b=iiRN8Kdu2XRPyDGnn1K8sxyOvo1sWyOQmrQNRRWbUDJZh0IQc1RGy6bNvU5fB8BcXsT6AiYTFZEUnH4kEOCC6LqyEGJdfoWxfRU4DoBebuT8PySgm91bzGAOehyHuZNyO5JLBTRk0IxoSKsNu/s018d/LLbIqj8Q1QEFnJeGZg4=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776362540; c=relaxed/simple;\n\tbh=BLU+KRsbxlmJUSwM/Q6w6TrYFfSYHYfNFSZ0GfT9Wi4=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=KSMqxe12bL7YmhAm8+Vt2ULZODD/kiM6coBQNUWQ9v59iju64LWyXQh37Mcg388U4KeNkPQLzHR3Q87eUygXqS2+gsrIcjSEJXbFJtxDgalT+XOvWjJJXJ+Zi0wbRXqupMbGDgf9XEimZAoqV09OlSrEE6NOZL2OCFzRwbTh3kM=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=AXa5ai8R; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776362540;\n\tbh=BLU+KRsbxlmJUSwM/Q6w6TrYFfSYHYfNFSZ0GfT9Wi4=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=AXa5ai8RGQyDGUKZL2wnI3/i2vo3wTCHlazehldlwloRd2zx2mrXhnujZL7MeQefn\n\t zlF9swkO6tjB0As1NDVV+lLwMBFOaAaf7q48JDEDpM+SP7ZLQDLmag7TuFtbFd/HJQ\n\t wlAoF7cL/ehYXbMsNNNOwk2KEEdH2cMrzUqtJjdctiO0AUtF3NS7mT0KCDDS8Ls/zj\n\t 73/OwJPCI2wDC9xdngRaI4z6AP7okT2zR5msFfPtd32IfnzwJYI5nWgGgdtHmUZCcG\n\t k2KyMx5HMoqgvZlfWi0S1SXry8F3cXtQZuFreAL2kF+C6z3sEkfwailUGRi6fFu+oh\n\t urSEEteTWikBA==", "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 v5 19/23] PCI: Add macros for legacy I/O and memory address\n space sizes", "Date": "Thu, 16 Apr 2026 18:01:03 +0000", "Message-ID": "<20260416180107.777065-20-kwilczynski@kernel.org>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260416180107.777065-1-kwilczynski@kernel.org>", "References": "<20260416180107.777065-1-kwilczynski@kernel.org>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit" }, "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": [ "v5", "19/23" ] }