drm/i915: Rename ->emit_request to ->emit_breadcrumb

Now that the emission of the request tail and its submission to hardware
are two separate steps, engine->emit_request() is confusing.
engine->emit_request() is called to emit the breadcrumb commands for the
request into the ring, name it such (engine->emit_breadcrumb).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-27-chris@chris-wilson.co.uk
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index e0a9bf8..57dba45 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -440,7 +440,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
 	if (last)
 		/* WaIdleLiteRestore:bdw,skl
 		 * Apply the wa NOOPs to prevent ring:HEAD == req:TAIL
-		 * as we resubmit the request. See gen8_emit_request()
+		 * as we resubmit the request. See gen8_emit_breadcrumb()
 		 * for where we prepare the padding after the end of the
 		 * request.
 		 */
@@ -1567,7 +1567,7 @@ static void bxt_a_seqno_barrier(struct intel_engine_cs *engine)
  * restore with HEAD==TAIL (WaIdleLiteRestore).
  */
 
-static int gen8_emit_request(struct drm_i915_gem_request *request)
+static int gen8_emit_breadcrumb(struct drm_i915_gem_request *request)
 {
 	struct intel_ring *ring = request->ring;
 	int ret;
@@ -1590,7 +1590,7 @@ static int gen8_emit_request(struct drm_i915_gem_request *request)
 	return intel_logical_ring_advance(request);
 }
 
-static int gen8_emit_request_render(struct drm_i915_gem_request *request)
+static int gen8_emit_breadcrumb_render(struct drm_i915_gem_request *request)
 {
 	struct intel_ring *ring = request->ring;
 	int ret;
@@ -1694,7 +1694,7 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
 	engine->init_hw = gen8_init_common_ring;
 	engine->reset_hw = reset_common_ring;
 	engine->emit_flush = gen8_emit_flush;
-	engine->emit_request = gen8_emit_request;
+	engine->emit_breadcrumb = gen8_emit_breadcrumb;
 	engine->submit_request = execlists_submit_request;
 
 	engine->irq_enable = gen8_logical_ring_enable_irq;
@@ -1816,7 +1816,7 @@ int logical_render_ring_init(struct intel_engine_cs *engine)
 		engine->init_hw = gen8_init_render_ring;
 	engine->init_context = gen8_init_rcs_context;
 	engine->emit_flush = gen8_emit_flush_render;
-	engine->emit_request = gen8_emit_request_render;
+	engine->emit_breadcrumb = gen8_emit_breadcrumb_render;
 
 	ret = intel_engine_create_scratch(engine, 4096);
 	if (ret)