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Tue, 1 Sep 2026 15:11:01 -0500 From: Alex Deucher To: , CC: Alex Deucher Subject: [PATCH 26/31] drm/amdgpu/gmc12: use SDMA for gart TLB invalidation Date: Tue, 1 Sep 2026 16:10:29 -0400 Message-ID: <20260901201034.2960437-27-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_|LV3PR12MB9214:EE_ X-MS-Office365-Filtering-Correlation-Id: c998b5a7-42ff-47ed-c896-08df0865270c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|36860700016|23010399003|82310400026|376014|1800799024|56012099006|11063799006|10067099003|18002099003|22082099003; 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: LV3PR12MB9214 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_v12_0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c index 889c0005fec3d..6ec5798494be1 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c @@ -1061,6 +1061,8 @@ static int gmc_v12_0_hw_init(struct amdgpu_ip_block *ip_block) int r; struct amdgpu_device *adev = ip_block->adev; + adev->gmc.gart_inv_method = AMDGPU_TLB_INV_METHOD_SDMA; + /* The sequence of these two function calls matters.*/ gmc_v12_0_init_golden_registers(adev); -- 2.55.0