D1GRPH_INTERRUPT_CONTROL 3630 drivers/gpu/drm/radeon/r600.c WREG32(D1GRPH_INTERRUPT_CONTROL, 0); D1GRPH_INTERRUPT_CONTROL 3879 drivers/gpu/drm/radeon/r600.c WREG32(D1GRPH_INTERRUPT_CONTROL, DxGRPH_PFLIP_INT_MASK);