[Intel-gfx] [RFC 16/25] drm/i915: Convert most 'i915_seqno_passed' calls into 'i915_gem_request_completed'

[John.C.Harrison at Intel.com]

From: John Harrison <John.C.Harrison at Intel.com>

For: VIZ-4377
Signed-off-by: John.C.Harrison at Intel.com
---
 drivers/gpu/drm/i915/i915_debugfs.c  |    3 +--
 drivers/gpu/drm/i915/i915_drv.h      |   18 ++++++++++++++++++
 drivers/gpu/drm/i915/i915_gem.c      |   12 ++++--------
 drivers/gpu/drm/i915/intel_display.c |   11 +++--------
 4 files changed, 26 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 52ddd19..e764af9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -550,8 +550,7 @@ static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 					   i915_gem_request_get_seqno(work->flip_queued_req),
 					   dev_priv->next_seqno,
 					   work->flip_queued_ring->get_seqno(work->flip_queued_ring, true),
-					   i915_seqno_passed(work->flip_queued_ring->get_seqno(work->flip_queued_ring, true),
-							     i915_gem_request_get_seqno(work->flip_queued_req)));
+					   i915_gem_request_completed(work->flip_queued_req, true));
 			} else
 				seq_printf(m, "Flip not associated with any ring\n");
 			seq_printf(m, "Flip queued on frame %d, (was ready on frame %d), now %d\n",
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6fe3be0..650f712 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1970,6 +1970,12 @@ i915_gem_request_unreference(struct drm_i915_gem_request *req)
 	kref_put(&req->ref, i915_gem_request_free);
 }
 
+/*
+ * NB: i915_gem_request_completed should be here but currently needs the
+ * definition of i915_seqno_passed() which is below. It will be moved in
+ * a later patch when the call to i915_seqno_passed() is obsoleted...
+ */
+
 struct drm_i915_file_private {
 	struct drm_i915_private *dev_priv;
 	struct drm_file *file;
@@ -3019,4 +3025,16 @@ wait_remaining_ms_from_jiffies(unsigned long timestamp_jiffies, int to_wait_ms)
 	}
 }
 
+static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
+					      bool lazy_coherency)
+{
+	u32 seqno;
+
+	BUG_ON(req == NULL);
+
+	seqno = req->ring->get_seqno(req->ring, lazy_coherency);
+
+	return i915_seqno_passed(seqno, req->seqno);
+}
+
 #endif
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e1a58f1..b602e8c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2253,8 +2253,7 @@ i915_gem_object_retire(struct drm_i915_gem_object *obj)
 	if (ring == NULL)
 		return;
 
-	if (i915_seqno_passed(ring->get_seqno(ring, true),
-			      i915_gem_request_get_seqno(obj->last_read_req)))
+	if (i915_gem_request_completed(obj->last_read_req, true))
 		i915_gem_object_move_to_inactive(obj);
 }
 
@@ -2521,12 +2520,9 @@ struct drm_i915_gem_request *
 i915_gem_find_active_request(struct intel_engine_cs *ring)
 {
 	struct drm_i915_gem_request *request;
-	u32 completed_seqno;
-
-	completed_seqno = ring->get_seqno(ring, false);
 
 	list_for_each_entry(request, &ring->request_list, list) {
-		if (i915_seqno_passed(completed_seqno, request->seqno))
+		if (i915_gem_request_completed(request, false))
 			continue;
 
 		return request;
@@ -2670,7 +2666,7 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
 				      struct drm_i915_gem_object,
 				      ring_list);
 
-		if (!i915_seqno_passed(seqno, i915_gem_request_get_seqno(obj->last_read_req)))
+		if (!i915_gem_request_completed(obj->last_read_req, true))
 			break;
 
 		i915_gem_object_move_to_inactive(obj);
@@ -2685,7 +2681,7 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
 					   struct drm_i915_gem_request,
 					   list);
 
-		if (!i915_seqno_passed(seqno, request->seqno))
+		if (!i915_gem_request_completed(request, true))
 			break;
 
 		trace_i915_gem_request_retire(ring, request->seqno);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 26fdd96..9ca8f94 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9771,8 +9771,7 @@ static int intel_postpone_flip(struct drm_i915_gem_object *obj)
 
 	ring = obj->ring;
 
-	if (i915_seqno_passed(ring->get_seqno(ring, true),
-			      i915_gem_request_get_seqno(obj->last_write_req)))
+	if (i915_gem_request_completed(obj->last_write_req, true))
 		return 0;
 
 	ret = i915_gem_check_olr(obj->last_write_req);
@@ -9790,9 +9789,6 @@ void intel_notify_mmio_flip(struct intel_engine_cs *ring)
 	struct drm_i915_private *dev_priv = to_i915(ring->dev);
 	struct intel_crtc *intel_crtc;
 	unsigned long irq_flags;
-	u32 seqno;
-
-	seqno = ring->get_seqno(ring, false);
 
 	spin_lock_irqsave(&dev_priv->mmio_flip_lock, irq_flags);
 	for_each_intel_crtc(ring->dev, intel_crtc) {
@@ -9805,7 +9801,7 @@ void intel_notify_mmio_flip(struct intel_engine_cs *ring)
 		if (ring->id != mmio_flip->ring_id)
 			continue;
 
-		if (i915_seqno_passed(seqno, i915_gem_request_get_seqno(mmio_flip->req))) {
+		if (i915_gem_request_completed(mmio_flip->req, false)) {
 			intel_do_mmio_flip(intel_crtc);
 			i915_gem_request_unreference(mmio_flip->req);
 			mmio_flip->req = NULL;
@@ -9878,8 +9874,7 @@ static bool __intel_pageflip_stall_check(struct drm_device *dev,
 
 	if (work->flip_ready_vblank == 0) {
 		if (work->flip_queued_ring &&
-		    !i915_seqno_passed(work->flip_queued_ring->get_seqno(work->flip_queued_ring, true),
-				       i915_gem_request_get_seqno(work->flip_queued_req)))
+		    !i915_gem_request_completed(work->flip_queued_req, true))
 			return false;
 
 		work->flip_ready_vblank = drm_vblank_count(dev, intel_crtc->pipe);
-- 
1.7.9.5