From 12f325bcd2411e571dbb500bf6862c812c479735 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 29 Nov 2024 14:19:21 +0100 Subject: drm/amdgpu: fix UVD contiguous CS mapping problem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When starting the mpv player, Radeon R9 users are observing the below error in dmesg. [drm:amdgpu_uvd_cs_pass2 [amdgpu]] *ERROR* msg/fb buffer ff00f7c000-ff00f7e000 out of 256MB segment! The patch tries to set the TTM_PL_FLAG_CONTIGUOUS for both user flag(AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) set and not set cases. v2: Make the TTM_PL_FLAG_CONTIGUOUS mandatory for user BO's. v3: revert back to v1, but fix the check instead (chk). Closes:https://gitlab.freedesktop.org/drm/amd/-/issues/3599 Closes:https://gitlab.freedesktop.org/drm/amd/-/issues/3501 Signed-off-by: Arunpravin Paneer Selvam Signed-off-by: Christian König Reviewed-by: Arunpravin Paneer Selvam Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.10+ --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index d891ab779ca7..5df21529b3b1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1801,13 +1801,18 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, if (dma_resv_locking_ctx((*bo)->tbo.base.resv) != &parser->exec.ticket) return -EINVAL; + /* Make sure VRAM is allocated contigiously */ (*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; - amdgpu_bo_placement_from_domain(*bo, (*bo)->allowed_domains); - for (i = 0; i < (*bo)->placement.num_placement; i++) - (*bo)->placements[i].flags |= TTM_PL_FLAG_CONTIGUOUS; - r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx); - if (r) - return r; + if ((*bo)->tbo.resource->mem_type == TTM_PL_VRAM && + !((*bo)->tbo.resource->placement & TTM_PL_FLAG_CONTIGUOUS)) { + + amdgpu_bo_placement_from_domain(*bo, (*bo)->allowed_domains); + for (i = 0; i < (*bo)->placement.num_placement; i++) + (*bo)->placements[i].flags |= TTM_PL_FLAG_CONTIGUOUS; + r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx); + if (r) + return r; + } return amdgpu_ttm_alloc_gart(&(*bo)->tbo); } -- cgit v1.2.3