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Tue, 14 Nov 2023 14:08:27 -0600 From: Mario Limonciello To: Karol Herbst , Lyude Paul , "Alex Deucher" , =?utf-8?q?Christian_K=C3=B6nig?= , Bjorn Helgaas , "Mika Westerberg" , Lukas Wunner CC: Danilo Krummrich , David Airlie , Daniel Vetter , Xinhui Pan , "Rafael J . Wysocki" , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , =?utf-8?q?P?= =?utf-8?q?ali_Roh=C3=A1r?= , =?utf-8?q?Marek_Beh=C3=BAn?= , "Maciej W . Rozycki" , Manivannan Sadhasivam , Mario Limonciello , "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" , "open list:DRM DRIVER FOR NVIDIA GEFORCE/QUADRO GPUS" , "open list" , "open list:RADEON and AMDGPU DRM DRIVERS" , "open list:PCI SUBSYSTEM" , "open list:ACPI" Subject: [PATCH v3 0/7] Improvements to pcie_bandwidth_available() for eGPUs Date: Tue, 14 Nov 2023 14:07:48 -0600 Message-ID: <20231114200755.14911-1-mario.limonciello@amd.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A107:EE_|CH3PR12MB8211:EE_ X-MS-Office365-Filtering-Correlation-Id: 610ac2fd-a322-4f0a-d177-08dbe54d7845 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:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(39860400002)(346002)(396003)(136003)(376002)(230922051799003)(1800799009)(451199024)(186009)(64100799003)(82310400011)(46966006)(40470700004)(36840700001)(7416002)(2906002)(40480700001)(44832011)(47076005)(41300700001)(5660300002)(40460700003)(36860700001)(82740400003)(36756003)(86362001)(356005)(81166007)(110136005)(6666004)(70206006)(70586007)(16526019)(26005)(54906003)(426003)(316002)(2616005)(336012)(478600001)(1076003)(8676002)(83380400001)(4326008)(8936002)(7696005)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2023 20:08:29.4734 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 610ac2fd-a322-4f0a-d177-08dbe54d7845 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A107.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8211 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Tue, 14 Nov 2023 12:08:53 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782571390603400751 X-GMAIL-MSGID: 1782571390603400751 The wrong values are reported from pcie_bandwidth_available() which can cause problems for performance of eGPUs. This series overhauls Thunderbolt related device detection and uses the changes to change the behavior of pcie_bandwidth_available(). v2->v3: * Stop lumping all thunderbolt VSEC and USB4 devices together, introduce is_virtual_link instead * Drop unnecessary patches Mario Limonciello (7): drm/nouveau: Switch from pci_is_thunderbolt_attached() to dev_is_removable() drm/radeon: Switch from pci_is_thunderbolt_attached() to dev_is_removable() PCI: Drop pci_is_thunderbolt_attached() PCI: pciehp: Move check for is_thunderbolt into a quirk PCI: ACPI: Detect PCIe root ports that are used for tunneling PCI: Split up some logic in pcie_bandwidth_available() to separate function PCI: Exclude PCIe ports used for virtual links in pcie_bandwidth_available() drivers/gpu/drm/nouveau/nouveau_vga.c | 6 +- drivers/gpu/drm/radeon/radeon_device.c | 4 +- drivers/gpu/drm/radeon/radeon_kms.c | 2 +- drivers/pci/hotplug/pciehp_hpc.c | 6 +- drivers/pci/pci-acpi.c | 16 ++++++ drivers/pci/pci.c | 77 +++++++++++++++++--------- drivers/pci/quirks.c | 20 +++++++ include/linux/pci.h | 24 +------- 8 files changed, 97 insertions(+), 58 deletions(-) base-commit: b85ea95d086471afb4ad062012a4d73cd328fa86