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Thu, 29 Jun 2023 12:31:30 -0500 From: Lizhi Hou To: , , , CC: Lizhi Hou , , , Subject: [PATCH V10 3/5] PCI: Add quirks to generate device tree node for Xilinx Alveo U50 Date: Thu, 29 Jun 2023 10:19:48 -0700 Message-ID: <1688059190-4225-4-git-send-email-lizhi.hou@amd.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1688059190-4225-1-git-send-email-lizhi.hou@amd.com> References: <1688059190-4225-1-git-send-email-lizhi.hou@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT048:EE_|LV2PR12MB5728:EE_ X-MS-Office365-Filtering-Correlation-Id: 7204f461-03f0-486f-7269-08db78c6adf7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(376002)(39860400002)(396003)(136003)(346002)(451199021)(36840700001)(40470700004)(46966006)(82310400005)(36860700001)(26005)(36756003)(82740400003)(70206006)(41300700001)(44832011)(86362001)(47076005)(356005)(40480700001)(8676002)(4326008)(81166007)(70586007)(8936002)(40460700003)(316002)(110136005)(5660300002)(186003)(6666004)(2906002)(2616005)(478600001)(54906003)(426003)(336012)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Jun 2023 17:31:32.0121 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7204f461-03f0-486f-7269-08db78c6adf7 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT048.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5728 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?1770059427370507463?= X-GMAIL-MSGID: =?utf-8?q?1770059427370507463?= The Xilinx Alveo U50 PCI card exposes multiple hardware peripherals on its PCI BAR. The card firmware provides a flattened device tree to describe the hardware peripherals on its BARs. This allows U50 driver to load the flattened device tree and generate the device tree node for hardware peripherals underneath. To generate device tree node for U50 card, add PCI quirks to call of_pci_make_dev_node() for U50. Signed-off-by: Lizhi Hou Acked-by: Bjorn Helgaas --- drivers/pci/quirks.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index c525867760bf..7776012eb03f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -6041,3 +6041,15 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size); #endif + +/* + * For a PCI device with multiple downstream devices, its driver may use + * a flattened device tree to describe the downstream devices. + * + * To overlay the flattened device tree, the PCI device and all its ancestor + * devices need to have device tree nodes on system base device tree. Thus, + * before driver probing, it might need to add a device tree node as the final + * fixup. + */ +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_XILINX, 0x5020, of_pci_make_dev_node); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_XILINX, 0x5021, of_pci_make_dev_node);