[PATCH] drm: Factor-out drm_emit_vblank_event code. (v3)

[christopher.halse.rogers@xxxxxxxxxxxxx]

From: Christopher James Halse Rogers <christopher.halse.rogers@xxxxxxxxxxxxx>

v2: Also pull out the drm_vblank_put call.
v3: Always set the reply.sequence value properly.

Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/drm_irq.c |   43 ++++++++++++++++++-------------------------
 1 files changed, 18 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 982ca8c..c05fe41 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -931,6 +931,20 @@ void drm_vblank_put(struct drm_device *dev, int crtc)
 }
 EXPORT_SYMBOL(drm_vblank_put);
 
+static void drm_emit_vblank_event (struct drm_device *dev,
+				   struct drm_pending_vblank_event *e,
+				   unsigned int seq, struct timeval *now)
+{
+	e->event.sequence = seq;
+	e->event.tv_sec = now->tv_sec;
+	e->event.tv_usec = now->tv_usec;
+	drm_vblank_put(dev, e->pipe);
+	list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+	wake_up_interruptible(&e->base.file_priv->event_wait);
+	trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
+					 e->event.sequence);
+}
+
 void drm_vblank_off(struct drm_device *dev, int crtc)
 {
 	struct drm_pending_vblank_event *e, *t;
@@ -951,14 +965,7 @@ void drm_vblank_off(struct drm_device *dev, int crtc)
 			  wanted %d, current %d\n",
 			  e->event.sequence, seq);
 
-		e->event.sequence = seq;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-		drm_vblank_put(dev, e->pipe);
-		list_move_tail(&e->base.link, &e->base.file_priv->event_list);
-		wake_up_interruptible(&e->base.file_priv->event_wait);
-		trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
-						 e->event.sequence);
+		drm_emit_vblank_event(dev, e, seq, &now);
 	}
 
 	WARN_ON(atomic_read(&dev->vblank_refcount[crtc]) != 0);
@@ -1104,18 +1111,11 @@ static int drm_queue_vblank_event(struct drm_device *dev, int pipe,
 				      vblwait->request.sequence);
 
 	e->event.sequence = vblwait->request.sequence;
+	list_add_tail(&e->base.link, &dev->vblank_event_list);
 	if ((seq - vblwait->request.sequence) <= (1 << 23)) {
-		e->event.sequence = seq;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-		drm_vblank_put(dev, pipe);
-		list_add_tail(&e->base.link, &e->base.file_priv->event_list);
-		wake_up_interruptible(&e->base.file_priv->event_wait);
+		drm_emit_vblank_event(dev, e, seq, &now);
 		vblwait->reply.sequence = seq;
-		trace_drm_vblank_event_delivered(current->pid, pipe,
-						 vblwait->request.sequence);
 	} else {
-		list_add_tail(&e->base.link, &dev->vblank_event_list);
 		vblwait->reply.sequence = vblwait->request.sequence;
 	}
 
@@ -1249,14 +1249,7 @@ void drm_handle_vblank_events(struct drm_device *dev, int crtc)
 		DRM_DEBUG("vblank event on %d, current %d\n",
 			  e->event.sequence, seq);
 
-		e->event.sequence = seq;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-		drm_vblank_put(dev, e->pipe);
-		list_move_tail(&e->base.link, &e->base.file_priv->event_list);
-		wake_up_interruptible(&e->base.file_priv->event_wait);
-		trace_drm_vblank_event_delivered(e->base.pid, e->pipe,
-						 e->event.sequence);
+		drm_emit_vblank_event(dev, e, seq, &now);
 	}
 
 	spin_unlock_irqrestore(&dev->event_lock, flags);
-- 
1.7.4.1

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