[PATCH 69/81] drm/i915: Refactor flip preaparation

[ville.syrjala at linux.intel.com]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Most of the code for preparing the 'struct intel_flip' instances was
identical betwen the CRTC and plane codepaths. Refactor the common parts
into a single function.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_atomic.c |  122 +++++++++++++++--------------------
 1 files changed, 52 insertions(+), 70 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 36446d1..3717e89 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -2258,6 +2258,50 @@ void intel_atomic_wedged(struct drm_device *dev)
 	spin_unlock_irqrestore(&dev_priv->flip.lock, flags);
 }
 
+static void intel_atomic_flip_init(struct intel_flip *intel_flip,
+				   struct drm_device *dev,
+				   u32 flip_seq,
+				   struct drm_i915_file_private *file_priv,
+				   struct drm_pending_atomic_event *event,
+				   struct drm_framebuffer *fb,
+				   bool unpin_old_fb, struct drm_framebuffer *old_fb)
+{
+	intel_flip->flip_seq = flip_seq;
+
+	if (event) {
+		intel_flip->event = event;
+
+		/* need to keep track of it in case process exits */
+		spin_lock_irq(&dev->event_lock);
+		list_add_tail(&intel_flip->pending_head, &file_priv->pending_flips);
+		spin_unlock_irq(&dev->event_lock);
+	}
+
+	if (fb) {
+		struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
+
+		mutex_lock(&dev->struct_mutex);
+#ifdef USE_WRITE_SEQNO
+		intel_flip->seqno = obj->last_write_seqno;
+#else
+		intel_flip->seqno = obj->last_read_seqno;
+#endif
+		intel_flip->ring = obj->ring;
+		mutex_unlock(&dev->struct_mutex);
+	}
+
+	if (old_fb)
+		intel_flip->old_fb_id = old_fb->base.id;
+
+	if (unpin_old_fb && old_fb) {
+		intel_flip->old_bo = to_intel_framebuffer(old_fb)->obj;
+
+		mutex_lock(&dev->struct_mutex);
+		drm_gem_object_reference(&intel_flip->old_bo->base);
+		mutex_unlock(&dev->struct_mutex);
+	}
+}
+
 static void atomic_pipe_commit(struct drm_device *dev,
 			       struct intel_atomic_state *state,
 			       int pipe)
@@ -2290,33 +2334,13 @@ static void atomic_pipe_commit(struct drm_device *dev,
 
 		drm_flip_init(&intel_flip->base, &intel_crtc->flip_helper);
 
-		intel_flip->flip_seq = flip_seq;
-
-		if (st->event) {
-			intel_flip->event = st->event;
-			st->event = NULL;
-			/* need to keep track of it in case process exits */
-			spin_lock_irq(&dev->event_lock);
-			list_add_tail(&intel_flip->pending_head,
-				      &file_priv->pending_flips);
-			spin_unlock_irq(&dev->event_lock);
-		}
+		intel_atomic_flip_init(intel_flip, dev, flip_seq,
+				       file_priv, st->event, crtc->fb,
+				       st->fb_dirty, st->old.fb);
+		st->event = NULL;
 
 		intel_flip->crtc = crtc;
 
-		if (crtc->fb) {
-			struct drm_i915_gem_object *obj = to_intel_framebuffer(crtc->fb)->obj;
-
-			mutex_lock(&dev->struct_mutex);
-#ifdef USE_WRITE_SEQNO
-			intel_flip->seqno = obj->last_write_seqno;
-#else
-			intel_flip->seqno = obj->last_read_seqno;
-#endif
-			intel_flip->ring = obj->ring;
-			mutex_unlock(&dev->struct_mutex);
-		}
-
 		/* update primary_disabled befoer calc_plane() */
 		intel_crtc->primary_disabled = st->primary_disabled;
 
@@ -2330,17 +2354,6 @@ static void atomic_pipe_commit(struct drm_device *dev,
 			intel_flip->old_cursor_bo = st->old.cursor_bo;
 		}
 
-		if (st->old.fb)
-			intel_flip->old_fb_id = st->old.fb->base.id;
-
-		if (st->fb_dirty && st->old.fb) {
-			intel_flip->old_bo = to_intel_framebuffer(st->old.fb)->obj;
-
-			mutex_lock(&dev->struct_mutex);
-			drm_gem_object_reference(&intel_flip->old_bo->base);
-			mutex_unlock(&dev->struct_mutex);
-		}
-
 		list_add_tail(&intel_flip->base.list, &flips);
 	}
 
@@ -2361,48 +2374,17 @@ static void atomic_pipe_commit(struct drm_device *dev,
 
 		drm_flip_init(&intel_flip->base, &intel_plane->flip_helper);
 
-		intel_flip->flip_seq = flip_seq;
-
-		if (st->event) {
-			intel_flip->event = st->event;
-			st->event = NULL;
-			/* need to keep track of it in case process exits */
-			spin_lock_irq(&dev->event_lock);
-			list_add_tail(&intel_flip->pending_head,
-				      &file_priv->pending_flips);
-			spin_unlock_irq(&dev->event_lock);
-		}
+		intel_atomic_flip_init(intel_flip, dev, flip_seq,
+				       file_priv, st->event, plane->fb,
+				       st->dirty, st->old.fb);
+		st->event = NULL;
 
 		intel_flip->crtc = intel_get_crtc_for_pipe(dev, pipe);
 		intel_flip->plane = plane;
 
-		if (plane->fb) {
-			struct drm_i915_gem_object *obj = to_intel_framebuffer(plane->fb)->obj;
-
-			mutex_lock(&dev->struct_mutex);
-#ifdef USE_WRITE_SEQNO
-			intel_flip->seqno = obj->last_write_seqno;
-#else
-			intel_flip->seqno = obj->last_read_seqno;
-#endif
-			intel_flip->ring = obj->ring;
-			mutex_unlock(&dev->struct_mutex);
-		}
-
 		intel_plane->calc(plane, plane->fb, &st->coords);
 		intel_flip->regs = intel_plane->regs;
 
-		if (st->old.fb)
-			intel_flip->old_fb_id = st->old.fb->base.id;
-
-		if (st->dirty && st->old.fb) {
-			intel_flip->old_bo = to_intel_framebuffer(st->old.fb)->obj;
-
-			mutex_lock(&dev->struct_mutex);
-			drm_gem_object_reference(&intel_flip->old_bo->base);
-			mutex_unlock(&dev->struct_mutex);
-		}
-
 		list_add_tail(&intel_flip->base.list, &flips);
 	}
 
-- 
1.7.8.6