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-rw-r--r--drivers/gpu/drm/i915/intel_display.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a4d382c8bf5..dc6ffe82d2c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4081,7 +4081,8 @@ static void intel_crtc_destroy(struct drm_crtc *crtc)
struct intel_unpin_work {
struct work_struct work;
struct drm_device *dev;
- struct drm_gem_object *obj;
+ struct drm_gem_object *old_fb_obj;
+ struct drm_gem_object *pending_flip_obj;
struct drm_pending_vblank_event *event;
int pending;
};
@@ -4092,8 +4093,8 @@ static void intel_unpin_work_fn(struct work_struct *__work)
container_of(__work, struct intel_unpin_work, work);
mutex_lock(&work->dev->struct_mutex);
- i915_gem_object_unpin(work->obj);
- drm_gem_object_unreference(work->obj);
+ i915_gem_object_unpin(work->old_fb_obj);
+ drm_gem_object_unreference(work->old_fb_obj);
mutex_unlock(&work->dev->struct_mutex);
kfree(work);
}
@@ -4117,7 +4118,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe)
work = intel_crtc->unpin_work;
if (work == NULL || !work->pending) {
if (work && !work->pending) {
- obj_priv = work->obj->driver_private;
+ obj_priv = work->pending_flip_obj->driver_private;
DRM_DEBUG_DRIVER("flip finish: %p (%d) not pending?\n",
obj_priv,
atomic_read(&obj_priv->pending_flip));
@@ -4142,7 +4143,7 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe)
spin_unlock_irqrestore(&dev->event_lock, flags);
- obj_priv = work->obj->driver_private;
+ obj_priv = work->pending_flip_obj->driver_private;
/* Initial scanout buffer will have a 0 pending flip count */
if ((atomic_read(&obj_priv->pending_flip) == 0) ||
@@ -4191,7 +4192,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
work->event = event;
work->dev = crtc->dev;
intel_fb = to_intel_framebuffer(crtc->fb);
- work->obj = intel_fb->obj;
+ work->old_fb_obj = intel_fb->obj;
INIT_WORK(&work->work, intel_unpin_work_fn);
/* We borrow the event spin lock for protecting unpin_work */
@@ -4220,13 +4221,14 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
}
/* Reference the old fb object for the scheduled work. */
- drm_gem_object_reference(work->obj);
+ drm_gem_object_reference(work->old_fb_obj);
crtc->fb = fb;
i915_gem_object_flush_write_domain(obj);
drm_vblank_get(dev, intel_crtc->pipe);
obj_priv = obj->driver_private;
atomic_inc(&obj_priv->pending_flip);
+ work->pending_flip_obj = obj;
BEGIN_LP_RING(4);
OUT_RING(MI_DISPLAY_FLIP |