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GET /api/patches/2223145/?format=api
{ "id": 2223145, "url": "http://patchwork.ozlabs.org/api/patches/2223145/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260414141514.1341429-3-den@valinux.co.jp/", "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": "<20260414141514.1341429-3-den@valinux.co.jp>", "list_archive_url": null, "date": "2026-04-14T14:15:09", "name": "[v14,2/7] PCI: dwc: Record integrated eDMA register window", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "981bb241d0180d4809748f98c919e4076d16bb26", "submitter": { "id": 91573, "url": "http://patchwork.ozlabs.org/api/people/91573/?format=api", "name": "Koichiro Den", "email": "den@valinux.co.jp" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260414141514.1341429-3-den@valinux.co.jp/mbox/", "series": [ { "id": 499855, "url": "http://patchwork.ozlabs.org/api/series/499855/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=499855", "date": "2026-04-14T14:15:08", "name": "PCI: endpoint: pci-ep-msi: Add embedded doorbell fallback", "version": 14, "mbox": "http://patchwork.ozlabs.org/series/499855/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223145/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223145/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-52494-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": [ 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dkim=pass header.d=valinux.co.jp; arc=none" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=valinux.co.jp;\n s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=EfCIC7CzZdwcLUlJhEa1n8/0yHBVwev+g2VgjAz+QQ8=;\n b=X1gOPnNq22nka587Kp0BG4RwlhqHveLw3ZDhJdiq2MXtjFmahRs6lZ2PyMJHMF1qqcEPz/rsrrW8K8kEVOA4JnvuVYCZngtMpcjPi5A4Cub7FvFJHBsdY9ja0G+VBu/WowJB8Pug2fMNBEJQ7xAW0IvPY2O92Al+mjkh84cOT3E=", "From": "Koichiro Den <den@valinux.co.jp>", "To": "Jingoo Han <jingoohan1@gmail.com>,\n Manivannan Sadhasivam <mani@kernel.org>,\n Lorenzo Pieralisi <lpieralisi@kernel.org>, =?utf-8?q?Krzysztof_Wilczy=C5=84?=\n\t=?utf-8?q?ski?= <kwilczynski@kernel.org>, Rob Herring <robh@kernel.org>,\n Bjorn Helgaas <bhelgaas@google.com>,\n Kishon Vijay Abraham I <kishon@kernel.org>, Jon Mason <jdmason@kudzu.us>,\n Dave Jiang <dave.jiang@intel.com>, Allen Hubbe <allenbh@gmail.com>,\n Niklas Cassel <cassel@kernel.org>, Frank Li <Frank.Li@nxp.com>,\n Bhanu Seshu Kumar Valluri <bhanuseshukumar@gmail.com>,\n Marco Crivellari <marco.crivellari@suse.com>,\n Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>,\n Manikanta Maddireddy <mmaddireddy@nvidia.com>", "Cc": "linux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tntb@lists.linux.dev", "Subject": "[PATCH v14 2/7] PCI: dwc: Record integrated eDMA register window", "Date": "Tue, 14 Apr 2026 23:15:09 +0900", "Message-ID": "<20260414141514.1341429-3-den@valinux.co.jp>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260414141514.1341429-1-den@valinux.co.jp>", "References": "<20260414141514.1341429-1-den@valinux.co.jp>", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "TYCP286CA0060.JPNP286.PROD.OUTLOOK.COM\n (2603:1096:400:2b5::15) To TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM\n (2603:1096:405:38f::10)", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": 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", "X-OriginatorOrg": "valinux.co.jp", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n de7d6df7-3235-49d2-f180-08de9a3068e4", "X-MS-Exchange-CrossTenant-AuthSource": "TY7P286MB7722.JPNP286.PROD.OUTLOOK.COM", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "14 Apr 2026 14:16:24.2616\n (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "7a57bee8-f73d-4c5f-a4f7-d72c91c8c111", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n ZHtga2G9ll8a5LKlBzo3WWdUR2nQyStXA7aZKTHEX6l7BjDjBeoJhZ2iIbSZYjZ97AzWNHSY5wys/JPSy3Hgzg==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "TY3P286MB2529" }, "content": "Some DesignWare PCIe controllers integrate an eDMA block whose registers\nare located in a dedicated register window.\n\nThe EP-side aux-resource code exposes an interrupt-emulation doorbell\nregister (DOORBELL_MMIO) from that window. Its location is derived from\nthe start of the eDMA register window plus the doorbell offset already\nprovided by dw-edma, and the window size is used to validate the\ncomputed register location.\n\nRecord the physical base and size of the integrated eDMA register window\nin struct dw_pcie so the EP-side DesignWare aux-resource provider can\nconstruct that doorbell resource.\n\nReviewed-by: Frank Li <Frank.Li@nxp.com>\nTested-by: Niklas Cassel <cassel@kernel.org>\nSigned-off-by: Koichiro Den <den@valinux.co.jp>\n---\n drivers/pci/controller/dwc/pcie-designware.c | 4 ++++\n drivers/pci/controller/dwc/pcie-designware.h | 2 ++\n 2 files changed, 6 insertions(+)", "diff": "diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c\nindex 5741c09dde7f..f82ed189f6ae 100644\n--- a/drivers/pci/controller/dwc/pcie-designware.c\n+++ b/drivers/pci/controller/dwc/pcie-designware.c\n@@ -162,8 +162,12 @@ int dw_pcie_get_resources(struct dw_pcie *pci)\n \t\t\tpci->edma.reg_base = devm_ioremap_resource(pci->dev, res);\n \t\t\tif (IS_ERR(pci->edma.reg_base))\n \t\t\t\treturn PTR_ERR(pci->edma.reg_base);\n+\t\t\tpci->edma_reg_phys = res->start;\n+\t\t\tpci->edma_reg_size = resource_size(res);\n \t\t} else if (pci->atu_size >= 2 * DEFAULT_DBI_DMA_OFFSET) {\n \t\t\tpci->edma.reg_base = pci->atu_base + DEFAULT_DBI_DMA_OFFSET;\n+\t\t\tpci->edma_reg_phys = pci->atu_phys_addr + DEFAULT_DBI_DMA_OFFSET;\n+\t\t\tpci->edma_reg_size = pci->atu_size - DEFAULT_DBI_DMA_OFFSET;\n \t\t}\n \t}\n \ndiff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h\nindex ae6389dd9caa..52f26663e8b1 100644\n--- a/drivers/pci/controller/dwc/pcie-designware.h\n+++ b/drivers/pci/controller/dwc/pcie-designware.h\n@@ -541,6 +541,8 @@ struct dw_pcie {\n \tint\t\t\tmax_link_speed;\n \tu8\t\t\tn_fts[2];\n \tstruct dw_edma_chip\tedma;\n+\tphys_addr_t\t\tedma_reg_phys;\n+\tresource_size_t\t\tedma_reg_size;\n \tbool\t\t\tl1ss_support;\t/* L1 PM Substates support */\n \tstruct clk_bulk_data\tapp_clks[DW_PCIE_NUM_APP_CLKS];\n \tstruct clk_bulk_data\tcore_clks[DW_PCIE_NUM_CORE_CLKS];\n", "prefixes": [ "v14", "2/7" ] }