diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 278c0f0..2617ab5 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2528,26 +2528,6 @@ static void ironlake_fdi_disable(struct drm_crtc *crtc) udelay(100); } -/* - * When we disable a pipe, we need to clear any pending scanline wait events - * to avoid hanging the ring, which we assume we are waiting on. - */ -static void intel_clear_scanline_wait(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - struct intel_ring_buffer *ring; - u32 tmp; - - if (IS_GEN2(dev)) - /* Can't break the hang on i8xx */ - return; - - ring = LP_RING(dev_priv); - tmp = I915_READ_CTL(ring); - if (tmp & RING_WAIT) - I915_WRITE_CTL(ring, tmp); -} - static void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; @@ -2931,7 +2911,6 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc) mutex_lock(&dev->struct_mutex); intel_update_fbc(dev); - intel_clear_scanline_wait(dev); mutex_unlock(&dev->struct_mutex); } @@ -3036,7 +3015,6 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc) intel_crtc->active = false; intel_update_fbc(dev); intel_update_watermarks(dev); - intel_clear_scanline_wait(dev); } static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) |