diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 4 |
2 files changed, 19 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3e41f46cf22..79795337695 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6896,14 +6896,19 @@ static void intel_unpin_work_fn(struct work_struct *__work) { struct intel_unpin_work *work = container_of(__work, struct intel_unpin_work, work); + struct drm_device *dev = work->crtc->dev; - mutex_lock(&work->dev->struct_mutex); + mutex_lock(&dev->struct_mutex); intel_unpin_fb_obj(work->old_fb_obj); drm_gem_object_unreference(&work->pending_flip_obj->base); drm_gem_object_unreference(&work->old_fb_obj->base); - intel_update_fbc(work->dev); - mutex_unlock(&work->dev->struct_mutex); + intel_update_fbc(dev); + mutex_unlock(&dev->struct_mutex); + + BUG_ON(atomic_read(&to_intel_crtc(work->crtc)->unpin_work_count) == 0); + atomic_dec(&to_intel_crtc(work->crtc)->unpin_work_count); + kfree(work); } @@ -6951,9 +6956,9 @@ static void do_intel_finish_page_flip(struct drm_device *dev, atomic_clear_mask(1 << intel_crtc->plane, &obj->pending_flip.counter); - wake_up(&dev_priv->pending_flip_queue); - schedule_work(&work->work); + + queue_work(dev_priv->wq, &work->work); trace_i915_flip_complete(intel_crtc->plane, work->pending_flip_obj); } @@ -7254,7 +7259,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, return -ENOMEM; work->event = event; - work->dev = crtc->dev; + work->crtc = crtc; intel_fb = to_intel_framebuffer(crtc->fb); work->old_fb_obj = intel_fb->obj; INIT_WORK(&work->work, intel_unpin_work_fn); @@ -7279,6 +7284,9 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, intel_fb = to_intel_framebuffer(fb); obj = intel_fb->obj; + if (atomic_read(&intel_crtc->unpin_work_count) >= 2) + flush_workqueue(dev_priv->wq); + ret = i915_mutex_lock_interruptible(dev); if (ret) goto cleanup; @@ -7297,6 +7305,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, * the flip occurs and the object is no longer visible. */ atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); + atomic_inc(&intel_crtc->unpin_work_count); ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); if (ret) @@ -7311,6 +7320,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, return 0; cleanup_pending: + atomic_dec(&intel_crtc->unpin_work_count); atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); drm_gem_object_unreference(&work->old_fb_obj->base); drm_gem_object_unreference(&obj->base); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index bcc52412810..522061ca068 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -211,6 +211,8 @@ struct intel_crtc { struct intel_unpin_work *unpin_work; int fdi_lanes; + atomic_t unpin_work_count; + /* Display surface base address adjustement for pageflips. Note that on * gen4+ this only adjusts up to a tile, offsets within a tile are * handled in the hw itself (with the TILEOFF register). */ @@ -395,7 +397,7 @@ intel_get_crtc_for_plane(struct drm_device *dev, int plane) struct intel_unpin_work { struct work_struct work; - struct drm_device *dev; + struct drm_crtc *crtc; struct drm_i915_gem_object *old_fb_obj; struct drm_i915_gem_object *pending_flip_obj; struct drm_pending_vblank_event *event; |