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Tue, 1 Sep 2026 15:11:01 -0500 From: Alex Deucher To: , CC: Alex Deucher Subject: [PATCH 25/31] drm/amdgpu/gmc11: use SDMA for gart TLB invalidation Date: Tue, 1 Sep 2026 16:10:28 -0400 Message-ID: <20260901201034.2960437-26-alexander.deucher@amd.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260901201034.2960437-1-alexander.deucher@amd.com> References: <20260901201034.2960437-1-alexander.deucher@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000EDD1:EE_|DS0PR12MB7996:EE_ X-MS-Office365-Filtering-Correlation-Id: 7477ccf2-bea4-42b2-77f9-08df0865257f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|1800799024|82310400026|36860700016|23010399003|376014|22082099003|18002099003|56012099006|11063799006|10067099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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Ip=[165.204.84.17]; Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000EDD1.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7996 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" Use SDMA rather than MMIO. The avoids the need to disallow gfxoff when invalidating. Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c index a35c84cc7385f..46e98fe66dd3e 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c @@ -952,6 +952,7 @@ static int gmc_v11_0_hw_init(struct amdgpu_ip_block *ip_block) adev->gmc.flush_pasid_uses_kiq = !amdgpu_emu_mode; if (adev->gmc.flush_pasid_uses_kiq) adev->gmc.pasid_inv_method = AMDGPU_TLB_INV_METHOD_KIQ; + adev->gmc.gart_inv_method = AMDGPU_TLB_INV_METHOD_SDMA; /* The sequence of these two function calls matters.*/ gmc_v11_0_init_golden_registers(adev); -- 2.55.0