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Sampat" , Scott Soule Cheloha , Ackerley Tng , Fuad Tabba Subject: [RFC PATCH kernel 01/17] pci/dma/tsm: Call disable DMA bus hook on cleanup Date: Wed, 16 Sep 2026 21:51:41 +1000 Message-ID: <20260916115159.1938195-2-aik@amd.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260916115159.1938195-1-aik@amd.com> References: <20260916115159.1938195-1-aik@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb08.amd.com (10.181.42.217) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000013B:EE_|DS6PR12MB152050:EE_ X-MS-Office365-Filtering-Correlation-Id: c368b172-fea0-475e-27fd-08df13e91646 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|1800799024|82310400026|36860700016|376014|7416014|32650700020|11063799006|56012099006|10067099003|22082099003|18002099003; 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:NLI;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(23010399003)(1800799024)(82310400026)(36860700016)(376014)(7416014)(32650700020)(11063799006)(56012099006)(10067099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 8Car1z4HpXq9pf9mgugQAiDX2M+RvASwLDL9yQIeM+kN/l86aDUJkLlLhXbA7h5FyKBkYdpkEvfnzFtAY1ypdABOLbjCcnRxFBKj2AqHYp3MJJkkxZp84M9m9JgKaBp3rXD4byWsdFprofXiibB3C/Aqe5xf/4+mDSyGncGAsfcoYA69DAfAmCeT0Weetem3fMELGDOK5EChaoFW5WWc17UwY4vkz4nFMdZngDqMXJiDZL4Jz7mkbzgsggHXldh7RY6AEc9zJSlma77wuBATEvSpwK5DjBoSX/o2xKHp1XmL2zF2qZ3AVtfjXHVaJg3js5x2DOxzUGU7365U9zN119sIeHjs9Wk0BELZkps29710E9Z5yecIj4dG6BrhgdrlFzWsRus8rYj7S96/IwFvQzh7ArrzAIHx3s8UCRtb/sMfMykBapwtCYQpoVQ3QXGs X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Sep 2026 11:53:13.1361 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c368b172-fea0-475e-27fd-08df13e91646 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000013B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS6PR12MB152050 Since XXXX ("PCI, device core: Add private memory access for DEVICE_TRUST_TCB") the TSM subsystem relies on the PCI subsystem to ask the TSM to enable DMA. That misses teardown path to disable DMA, add it now. Fixes: XXXX ("PCI, device core: Add private memory access for DEVICE_TRUST_TCB") Signed-off-by: Alexey Kardashevskiy --- Squash into "PCI, device core: Add private memory access for DEVICE_TRUST_TCB"? --- drivers/pci/pci-driver.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index a036f3d7e6d5..633926b55da6 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1739,6 +1739,9 @@ static void pci_dma_cleanup(struct device *dev) if (!driver->driver_managed_dma) iommu_device_unuse_default_domain(dev); + + if (device_tcb_trusted(dev)) + pci_tsm_disable_dma(to_pci_dev(dev)); } /* -- 2.55.0