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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Dec 2022 11:42:41.6921 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 11a5d9fb-0785-44d4-37e5-08dadb6ccfef 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: DS1PEPF0000E657.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY5PR12MB6347 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alex Deucher , Mikhail Krylov , Luben Tuikov , Robin Murphy , Direct Rendering Infrastructure - Development Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Fix screen corruption on older 32-bit systems using AGP chips. Partially revert commit 33b3ad3788aba846fc8b9a065fe2685a0b64f713. Cc: Mikhail Krylov Cc: Alex Deucher Cc: Robin Murphy Cc: Direct Rendering Infrastructure - Development Cc: AMD Graphics Fixes: 33b3ad3788aba8 ("drm/radeon: handle PCIe root ports with addressing limitations") Signed-off-by: Luben Tuikov --- drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/radeon_device.c | 2 +- drivers/gpu/drm/radeon/radeon_ttm.c | 2 +- 3 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 37dec92339b16a..4fe38fd9be3267 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2426,6 +2426,7 @@ struct radeon_device { struct radeon_wb wb; struct radeon_dummy_page dummy_page; bool shutdown; + bool need_dma32; bool need_swiotlb; bool accel_working; bool fastfb_working; /* IGP feature*/ diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 6344454a772172..3643a3cfe061bd 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -1370,7 +1370,7 @@ int radeon_device_init(struct radeon_device *rdev, if (rdev->family == CHIP_CEDAR) dma_bits = 32; #endif - + rdev->need_dma32 = dma_bits == 32; r = dma_set_mask_and_coherent(&rdev->pdev->dev, DMA_BIT_MASK(dma_bits)); if (r) { pr_warn("radeon: No suitable DMA available\n"); diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index bdb4c0e0736ba2..3debaeb720d173 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -696,7 +696,7 @@ int radeon_ttm_init(struct radeon_device *rdev) rdev->ddev->anon_inode->i_mapping, rdev->ddev->vma_offset_manager, rdev->need_swiotlb, - dma_addressing_limited(&rdev->pdev->dev)); + rdev->need_dma32); if (r) { DRM_ERROR("failed initializing buffer object driver(%d).\n", r); return r; base-commit: 20e03e7f6e8efd42168db6d3fe044b804e0ede8f -- 2.39.0.rc2