RADEON_UVD_SESSION_SIZE
RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles;
(RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;
(RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;
(RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;