From: Christian König Date: Wed, 24 Jul 2024 07:24:02 +0000 (+0200) Subject: drm/amdgpu: fix contiguous handling for IB parsing v2 X-Git-Tag: v6.11-rc2~24^2~3^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f3572db3c049b4d32bb5ba77ad5305616c44c7c1;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: fix contiguous handling for IB parsing v2 Otherwise we won't get correct access to the IB. v2: keep setting AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS to avoid problems in the VRAM backend. Signed-off-by: Christian König Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3501 Fixes: e362b7c8f8c7 ("drm/amdgpu: Modify the contiguous flags behaviour") Reviewed-by: Alex Deucher Cc: stable@vger.kernel.org Tested-by: Dave Airlie Signed-off-by: Alex Deucher (cherry picked from commit fbfb5f0342253d92c4e446588c428a9d90c3f610) --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 916b6b8cf7d9a..9aa952f258cf2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1778,7 +1778,7 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, struct ttm_operation_ctx ctx = { false, false }; struct amdgpu_vm *vm = &fpriv->vm; struct amdgpu_bo_va_mapping *mapping; - int r; + int i, r; addr /= AMDGPU_GPU_PAGE_SIZE; @@ -1793,13 +1793,13 @@ int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, if (dma_resv_locking_ctx((*bo)->tbo.base.resv) != &parser->exec.ticket) return -EINVAL; - if (!((*bo)->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) { - (*bo)->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; - amdgpu_bo_placement_from_domain(*bo, (*bo)->allowed_domains); - r = ttm_bo_validate(&(*bo)->tbo, &(*bo)->placement, &ctx); - if (r) - return r; - } + (*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; return amdgpu_ttm_alloc_gart(&(*bo)->tbo); }