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

Updated the two render_state_init() functions to take a request pointer instead
of a ring. This removes their reliance on the OLR.

v2: Rebased to newer tree.

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_render_state.c

@@ -152,26 +152,26 @@ int i915_gem_render_state_prepare(struct intel_engine_cs *ring,
 	return 0;
 }
 
-int i915_gem_render_state_init(struct intel_engine_cs *ring)
+int i915_gem_render_state_init(struct drm_i915_gem_request *req)
 {
 	struct render_state so;
 	int ret;
 
-	ret = i915_gem_render_state_prepare(ring, &so);
+	ret = i915_gem_render_state_prepare(req->ring, &so);
 	if (ret)
 		return ret;
 
 	if (so.rodata == NULL)
 		return 0;
 
-	ret = ring->dispatch_execbuffer(ring,
+	ret = req->ring->dispatch_execbuffer(req->ring,
 					     so.ggtt_offset,
 					     so.rodata->batch_items * 4,
 					     I915_DISPATCH_SECURE);
 	if (ret)
 		goto out;
 
-	i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring);
+	i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), req->ring);
 
 out:
 	i915_gem_render_state_fini(&so);

drivers/gpu/drm/i915/i915_gem_render_state.h

@@ -39,7 +39,7 @@ struct render_state {
 	int gen;
 };
 
-int i915_gem_render_state_init(struct intel_engine_cs *ring);
+int i915_gem_render_state_init(struct drm_i915_gem_request *req);
 void i915_gem_render_state_fini(struct render_state *so);
 int i915_gem_render_state_prepare(struct intel_engine_cs *ring,
 				  struct render_state *so);

drivers/gpu/drm/i915/intel_lrc.c

@@ -1574,28 +1574,26 @@ static int gen8_emit_request(struct intel_ringbuffer *ringbuf,
 	return 0;
 }
 
-static int intel_lr_context_render_state_init(struct intel_engine_cs *ring,
-					      struct intel_context *ctx)
+static int intel_lr_context_render_state_init(struct drm_i915_gem_request *req)
 {
-	struct intel_ringbuffer *ringbuf = ctx->engine[ring->id].ringbuf;
 	struct render_state so;
 	int ret;
 
-	ret = i915_gem_render_state_prepare(ring, &so);
+	ret = i915_gem_render_state_prepare(req->ring, &so);
 	if (ret)
 		return ret;
 
 	if (so.rodata == NULL)
 		return 0;
 
-	ret = ring->emit_bb_start(ringbuf,
-			ctx,
+	ret = req->ring->emit_bb_start(req->ringbuf,
+				       req->ctx,
 				       so.ggtt_offset,
 				       I915_DISPATCH_SECURE);
 	if (ret)
 		goto out;
 
-	i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), ring);
+	i915_vma_move_to_active(i915_gem_obj_to_ggtt(so.obj), req->ring);
 
 out:
 	i915_gem_render_state_fini(&so);
@@ -1610,7 +1608,7 @@ static int gen8_init_rcs_context(struct drm_i915_gem_request *req)
 	if (ret)
 		return ret;
 
-	return intel_lr_context_render_state_init(req->ring, req->ctx);
+	return intel_lr_context_render_state_init(req);
 }
 
 /**

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -750,7 +750,7 @@ static int intel_rcs_ctx_init(struct drm_i915_gem_request *req)
 	if (ret != 0)
 		return ret;
 
-	ret = i915_gem_render_state_init(req->ring);
+	ret = i915_gem_render_state_init(req);
 	if (ret)
 		DRM_ERROR("init render state: %d\n", ret);