- struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
- u32 tmp;
-
- /* make sure flip is at vb rather than hb */
- tmp = RREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset);
- tmp &= ~RADEON_CRTC_OFFSET_FLIP_CNTL;
- /* make sure pending bit is asserted */
- tmp |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN;
- WREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset, tmp);
-
- /* set pageflip to happen as late as possible in the vblank interval.
- * same field for crtc1/2
- */
- tmp = RREG32(RADEON_CRTC_GEN_CNTL);
- tmp &= ~RADEON_CRTC_VSTAT_MODE_MASK;
- WREG32(RADEON_CRTC_GEN_CNTL, tmp);
-