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drm/ttm: prevent moving of pinned BOs

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We have checks for this in the individual drivers move callback, but
it's probably better to generally forbid that on a higher level.

Also stops exporting ttm_resource_compat() since that's not necessary
any more after removing the extra checks in vmwgfx.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130120636.63765-6-matthew.auld@intel.com
This commit is contained in:
Christian König
2023-01-30 12:06:36 +00:00
parent c7ea16f6a4
commit f87c1f0b7b
6 changed files with 14 additions and 37 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@@ -466,11 +466,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
return r;
}
/* Can't move a pinned BO */
abo = ttm_to_amdgpu_bo(bo);
if (WARN_ON_ONCE(abo->tbo.pin_count > 0))
return -EINVAL;
adev = amdgpu_ttm_adev(bo->bdev);
if (!old_mem || (old_mem->mem_type == TTM_PL_SYSTEM &&