EVERGREEN_GRPH_UPDATE
return !!(RREG32(EVERGREEN_GRPH_UPDATE + radeon_crtc->crtc_offset) &
tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);
WREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i], tmp);
tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);
WREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i], tmp);
tmp = RREG32(EVERGREEN_GRPH_UPDATE + crtc_offsets[i]);