CP_RB0_RPTR 4135 drivers/gpu/drm/radeon/cik.c rptr = RREG32(CP_RB0_RPTR); CP_RB0_RPTR 1483 drivers/gpu/drm/radeon/ni.c rptr = RREG32(CP_RB0_RPTR); CP_RB0_RPTR 1652 drivers/gpu/drm/radeon/ni.c CP_RB0_RPTR,