DREG32_SYS 4355 drivers/gpu/drm/radeon/r600.c DREG32_SYS(m, rdev, R_000E50_SRBM_STATUS); DREG32_SYS 4356 drivers/gpu/drm/radeon/r600.c DREG32_SYS(m, rdev, VM_L2_STATUS);