drm/amdgpu: fix visible VRAM handling during faults
When we removed the hacky start code check we actually didn't took into account that *all* VRAM pages needs to be CPU accessible. Clean up the code and unify the handling into a single helper which checks if the whole resource is CPU accessible. The only place where a partial check would make sense is during eviction, but that is neglitible. Signed-off-by:Christian König <christian.koenig@amd.com> Fixes: aed01a68 ("drm/amdgpu: Remove TTM resource->start visible VRAM condition v2") Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> CC: stable@vger.kernel.org