[Intel-xe] [PATCH 04/15] FIXME drm/i915/display: Use fence->set_deadline to boost requests

[Maarten Lankhorst]

Instead of using a i915 specific method, use the generic helper to
combine fences and set the deadline.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 .../gpu/drm/i915/display/intel_atomic_plane.c | 47 ++++---------------
 drivers/gpu/drm/i915/display/intel_display.c  |  2 +
 2 files changed, 11 insertions(+), 38 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index dd65498166fb..98a59445e6f4 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -1033,7 +1033,6 @@ static int
 intel_prepare_plane_fb(struct drm_plane *_plane,
 		       struct drm_plane_state *_new_plane_state)
 {
-	struct i915_sched_attr attr = { .priority = I915_PRIORITY_DISPLAY };
 	struct intel_plane *plane = to_intel_plane(_plane);
 	struct intel_plane_state *new_plane_state =
 		to_intel_plane_state(_new_plane_state);
@@ -1072,49 +1071,20 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 		}
 	}
 
-	if (new_plane_state->uapi.fence) { /* explicit fencing */
-		i915_gem_fence_wait_priority(new_plane_state->uapi.fence,
-					     &attr);
-		ret = i915_sw_fence_await_dma_fence(&state->commit_ready,
-						    new_plane_state->uapi.fence,
-						    i915_fence_timeout(dev_priv),
-						    GFP_KERNEL);
-		if (ret < 0)
+	if (obj) {
+		ret = intel_plane_pin_fb(new_plane_state);
+		if (ret)
 			return ret;
 	}
 
-	if (!obj)
-		return 0;
-
-
-	ret = intel_plane_pin_fb(new_plane_state);
+	/* prepare after pinning */
+	ret = drm_gem_plane_helper_prepare_fb(_plane, _new_plane_state);
 	if (ret)
-		return ret;
+		goto unpin_fb;
 
-	i915_gem_object_wait_priority(obj, 0, &attr);
-
-	if (!new_plane_state->uapi.fence) { /* implicit fencing */
-		struct dma_resv_iter cursor;
-		struct dma_fence *fence;
-
-		ret = i915_sw_fence_await_reservation(&state->commit_ready,
-						      obj->base.resv, false,
-						      i915_fence_timeout(dev_priv),
-						      GFP_KERNEL);
-		if (ret < 0)
-			goto unpin_fb;
-
-		dma_resv_iter_begin(&cursor, obj->base.resv,
-				    DMA_RESV_USAGE_WRITE);
-		dma_resv_for_each_fence_unlocked(&cursor, fence) {
-			intel_display_rps_boost_after_vblank(new_plane_state->hw.crtc,
-							     fence);
-		}
-		dma_resv_iter_end(&cursor);
-	} else {
+	if (new_plane_state->uapi.fence)
 		intel_display_rps_boost_after_vblank(new_plane_state->hw.crtc,
 						     new_plane_state->uapi.fence);
-	}
 
 	/*
 	 * We declare pageflips to be interactive and so merit a small bias
@@ -1124,7 +1094,8 @@ intel_prepare_plane_fb(struct drm_plane *_plane,
 	 * that are not quite steady state without resorting to forcing
 	 * maximum clocks following a vblank miss (see do_rps_boost()).
 	 */
-	intel_display_rps_mark_interactive(dev_priv, state, true);
+	if (obj)
+		intel_display_rps_mark_interactive(dev_priv, state, true);
 
 	return 0;
 
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 478b8764101a..1b66d5adcebe 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6599,6 +6599,8 @@ static int intel_atomic_prepare_commit(struct intel_atomic_state *state)
 	if (ret < 0)
 		return ret;
 
+	drm_atomic_helper_set_fence_deadline(state->base.dev, &state->base);
+
 	for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
 		if (intel_crtc_needs_color_update(crtc_state))
 			intel_color_prepare_commit(crtc_state);
-- 
2.40.1