PHC_MASK          412 drivers/gpu/drm/radeon/r600_dpm.c 	WREG32_P(CG_CTX_CGTT3D_R, PHC(p), ~PHC_MASK);
PHC_MASK          427 drivers/gpu/drm/radeon/r600_dpm.c 	WREG32_P(CG_VDDC3D_OOR, PHC(p), ~PHC_MASK);