RADEON_CP_RB_RPTR 1070 drivers/gpu/drm/radeon/r100.c 		rptr = RREG32(RADEON_CP_RB_RPTR);
RADEON_CP_RB_RPTR 2954 drivers/gpu/drm/radeon/r100.c 	rdp = RREG32(RADEON_CP_RB_RPTR);