drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING query
This tells userspace that it's safe to use the RADEON_VA_UNMAP operation
of the DRM_RADEON_GEM_VA ioctl.
Cc: stable@vger.kernel.org
(NOTE: Backporting this commit requires at least backports of commits
45855d9d2b45c77be8e59fa03db73cde7f79c59d,
0389c2f8bff52455f57e9d164c613a193835a3c8 and
67e13269284585720a566db310f6470fc5250a93 as well, otherwise using
RADEON_VA_UNMAP runs into trouble)
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
projects / kernel.git / commit