drm/i915: Add origin to frontbuffer tracking flush

This will be useful to PSR and FBC once we start making
dirty fb calls to also flush frontbuffer.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_gem.c

@@ -375,7 +375,7 @@ i915_gem_phys_pwrite(struct drm_i915_gem_object *obj,
 	i915_gem_chipset_flush(dev);
 
 out:
-	intel_fb_obj_flush(obj, false);
+	intel_fb_obj_flush(obj, false, ORIGIN_CPU);
 	return ret;
 }
 
@@ -839,7 +839,7 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev,
 	}
 
 out_flush:
-	intel_fb_obj_flush(obj, false);
+	intel_fb_obj_flush(obj, false, ORIGIN_GTT);
 out_unpin:
 	i915_gem_object_ggtt_unpin(obj);
 out:
@@ -1032,7 +1032,7 @@ i915_gem_shmem_pwrite(struct drm_device *dev,
 	if (needs_clflush_after)
 		i915_gem_chipset_flush(dev);
 
-	intel_fb_obj_flush(obj, false);
+	intel_fb_obj_flush(obj, false, ORIGIN_CPU);
 	return ret;
 }
 
@@ -2375,7 +2375,7 @@ i915_gem_object_retire__write(struct drm_i915_gem_object *obj)
 	RQ_BUG_ON(!(obj->active & intel_ring_flag(obj->last_write_req->ring)));
 
 	i915_gem_request_assign(&obj->last_write_req, NULL);
-	intel_fb_obj_flush(obj, true);
+	intel_fb_obj_flush(obj, true, ORIGIN_CS);
 }
 
 static void
@@ -3905,7 +3905,7 @@ i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj)
 	old_write_domain = obj->base.write_domain;
 	obj->base.write_domain = 0;
 
-	intel_fb_obj_flush(obj, false);
+	intel_fb_obj_flush(obj, false, ORIGIN_GTT);
 
 	trace_i915_gem_object_change_domain(obj,
 					    obj->base.read_domains,
@@ -3927,7 +3927,7 @@ i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj)
 	old_write_domain = obj->base.write_domain;
 	obj->base.write_domain = 0;
 
-	intel_fb_obj_flush(obj, false);
+	intel_fb_obj_flush(obj, false, ORIGIN_CPU);
 
 	trace_i915_gem_object_change_domain(obj,
 					    obj->base.read_domains,

drivers/gpu/drm/i915/intel_drv.h

@@ -978,16 +978,16 @@ void intel_frontbuffer_flip_prepare(struct drm_device *dev,
 void intel_frontbuffer_flip_complete(struct drm_device *dev,
 				     unsigned frontbuffer_bits);
 void intel_frontbuffer_flush(struct drm_device *dev,
-			     unsigned frontbuffer_bits);
+			     unsigned frontbuffer_bits,
+			     enum fb_op_origin origin);
 void intel_frontbuffer_flip(struct drm_device *dev,
 			    unsigned frontbuffer_bits);
-
 unsigned int intel_fb_align_height(struct drm_device *dev,
 				   unsigned int height,
 				   uint32_t pixel_format,
 				   uint64_t fb_format_modifier);
-void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire);
-
+void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
+			enum fb_op_origin origin);
 u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
 			      uint32_t pixel_format);
 

drivers/gpu/drm/i915/intel_frontbuffer.c

@@ -105,6 +105,7 @@ void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
  * intel_frontbuffer_flush - flush frontbuffer
  * @dev: DRM device
  * @frontbuffer_bits: frontbuffer plane tracking bits
+ * @origin: which operation caused the flush
  *
  * This function gets called every time rendering on the given planes has
  * completed and frontbuffer caching can be started again. Flushes will get
@@ -113,7 +114,8 @@ void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
  * Can be called without any locks held.
  */
 void intel_frontbuffer_flush(struct drm_device *dev,
-			     unsigned frontbuffer_bits)
+			     unsigned frontbuffer_bits,
+			     enum fb_op_origin origin)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 
@@ -140,7 +142,7 @@ void intel_frontbuffer_flush(struct drm_device *dev,
  * then any delayed flushes will be unblocked.
  */
 void intel_fb_obj_flush(struct drm_i915_gem_object *obj,
-			bool retire)
+			bool retire, enum fb_op_origin origin)
 {
 	struct drm_device *dev = obj->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -162,7 +164,7 @@ void intel_fb_obj_flush(struct drm_i915_gem_object *obj,
 		mutex_unlock(&dev_priv->fb_tracking.lock);
 	}
 
-	intel_frontbuffer_flush(dev, frontbuffer_bits);
+	intel_frontbuffer_flush(dev, frontbuffer_bits, origin);
 }
 
 /**
@@ -212,7 +214,7 @@ void intel_frontbuffer_flip_complete(struct drm_device *dev,
 	dev_priv->fb_tracking.flip_bits &= ~frontbuffer_bits;
 	mutex_unlock(&dev_priv->fb_tracking.lock);
 
-	intel_frontbuffer_flush(dev, frontbuffer_bits);
+	intel_frontbuffer_flush(dev, frontbuffer_bits, ORIGIN_FLIP);
 }
 
 /**
@@ -237,5 +239,5 @@ void intel_frontbuffer_flip(struct drm_device *dev,
 	dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
 	mutex_unlock(&dev_priv->fb_tracking.lock);
 
-	intel_frontbuffer_flush(dev, frontbuffer_bits);
+	intel_frontbuffer_flush(dev, frontbuffer_bits, ORIGIN_FLIP);
 }