drm/i915: Update init_context() to take a request structure

Now that everything above has been converted to use requests, it is possible to
update init_context() to take a request pointer instead of a ring/context pair.

For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Tomas Elf <tomas.elf@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_gem_context.c

@@ -418,7 +418,7 @@ int i915_gem_context_enable(struct drm_i915_gem_request *req)
 		if (ring->init_context == NULL)
 			return 0;
 
-		ret = ring->init_context(ring, ring->default_context);
+		ret = ring->init_context(req);
 	} else
 		ret = i915_switch_context(req);
 
@@ -760,7 +760,7 @@ done:
 
 	if (uninitialized) {
 		if (ring->init_context) {
-			ret = ring->init_context(ring, to);
+			ret = ring->init_context(req);
 			if (ret)
 				DRM_ERROR("ring init context: %d\n", ret);
 		}

drivers/gpu/drm/i915/intel_lrc.c

@@ -1602,16 +1602,15 @@ out:
 	return ret;
 }
 
-static int gen8_init_rcs_context(struct intel_engine_cs *ring,
-		       struct intel_context *ctx)
+static int gen8_init_rcs_context(struct drm_i915_gem_request *req)
 {
 	int ret;
 
-	ret = intel_logical_ring_workarounds_emit(ring, ctx);
+	ret = intel_logical_ring_workarounds_emit(req->ring, req->ctx);
 	if (ret)
 		return ret;
 
-	return intel_lr_context_render_state_init(ring, ctx);
+	return intel_lr_context_render_state_init(req->ring, req->ctx);
 }
 
 /**
@@ -2236,7 +2235,7 @@ int intel_lr_context_deferred_create(struct intel_context *ctx,
 			if (ret)
 				return ret;
 
-			ret = ring->init_context(req->ring, ctx);
+			ret = ring->init_context(req);
 			if (ret) {
 				DRM_ERROR("ring init context: %d\n", ret);
 				i915_gem_request_cancel(req);

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -742,16 +742,15 @@ static int intel_ring_workarounds_emit(struct intel_engine_cs *ring,
 	return 0;
 }
 
-static int intel_rcs_ctx_init(struct intel_engine_cs *ring,
-			      struct intel_context *ctx)
+static int intel_rcs_ctx_init(struct drm_i915_gem_request *req)
 {
 	int ret;
 
-	ret = intel_ring_workarounds_emit(ring, ctx);
+	ret = intel_ring_workarounds_emit(req->ring, req->ctx);
 	if (ret != 0)
 		return ret;
 
-	ret = i915_gem_render_state_init(ring);
+	ret = i915_gem_render_state_init(req->ring);
 	if (ret)
 		DRM_ERROR("init render state: %d\n", ret);
 

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -176,8 +176,7 @@ struct  intel_engine_cs {
 
 	int		(*init_hw)(struct intel_engine_cs *ring);
 
-	int		(*init_context)(struct intel_engine_cs *ring,
-					struct intel_context *ctx);
+	int		(*init_context)(struct drm_i915_gem_request *req);
 
 	void		(*write_tail)(struct intel_engine_cs *ring,
 				      u32 value);