VBLANK_STATUS 815 drivers/gpu/drm/amd/amdgpu/sid.h #define VBLANK_STATUS 0x1AEF VBLANK_STATUS 1276 drivers/gpu/drm/radeon/evergreend.h #define VBLANK_STATUS 0x6bbc VBLANK_STATUS 811 drivers/gpu/drm/radeon/sid.h #define VBLANK_STATUS 0x6bbc