drm/i915: Rename intel_engine_cs struct members

below and a couple manual fixups.

@@
identifier I, J;
@@
struct I {
...
- struct intel_engine_cs *J;
+ struct intel_engine_cs *engine;
...
}
@@
identifier I, J;
@@
struct I {
...
- struct intel_engine_cs J;
+ struct intel_engine_cs engine;
...
}
@@
struct drm_i915_private *d;
@@
(
- d->ring
+ d->engine
)
@@
struct i915_execbuffer_params *p;
@@
(
- p->ring
+ p->engine
)
@@
struct intel_ringbuffer *r;
@@
(
- r->ring
+ r->engine
)
@@
struct drm_i915_gem_request *req;
@@
(
- req->ring
+ req->engine
)

v2: Script missed the tracepoint code - fixed up by hand.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/i915_debugfs.c

@@ -984,7 +984,7 @@ static int i915_hws_info(struct seq_file *m, void *data)
 	const u32 *hws;
 	int i;
 
-	engine = &dev_priv->ring[(uintptr_t)node->info_ent->data];
+	engine = &dev_priv->engine[(uintptr_t)node->info_ent->data];
 	hws = engine->status_page.page_addr;
 	if (hws == NULL)
 		return 0;

drivers/gpu/drm/i915/i915_dma.c

@@ -87,16 +87,16 @@ static int i915_getparam(struct drm_device *dev, void *data,
 		value = 1;
 		break;
 	case I915_PARAM_HAS_BSD:
-		value = intel_ring_initialized(&dev_priv->ring[VCS]);
+		value = intel_ring_initialized(&dev_priv->engine[VCS]);
 		break;
 	case I915_PARAM_HAS_BLT:
-		value = intel_ring_initialized(&dev_priv->ring[BCS]);
+		value = intel_ring_initialized(&dev_priv->engine[BCS]);
 		break;
 	case I915_PARAM_HAS_VEBOX:
-		value = intel_ring_initialized(&dev_priv->ring[VECS]);
+		value = intel_ring_initialized(&dev_priv->engine[VECS]);
 		break;
 	case I915_PARAM_HAS_BSD2:
-		value = intel_ring_initialized(&dev_priv->ring[VCS2]);
+		value = intel_ring_initialized(&dev_priv->engine[VCS2]);
 		break;
 	case I915_PARAM_HAS_RELAXED_FENCING:
 		value = 1;

drivers/gpu/drm/i915/i915_drv.h

@@ -1652,7 +1652,7 @@ struct i915_execbuffer_params {
 	uint32_t                        dispatch_flags;
 	uint32_t                        args_batch_start_offset;
 	uint64_t                        batch_obj_vm_offset;
-	struct intel_engine_cs          *ring;
+	struct intel_engine_cs *engine;
 	struct drm_i915_gem_object      *batch_obj;
 	struct intel_context            *ctx;
 	struct drm_i915_gem_request     *request;
@@ -1704,7 +1704,7 @@ struct drm_i915_private {
 	wait_queue_head_t gmbus_wait_queue;
 
 	struct pci_dev *bridge_dev;
-	struct intel_engine_cs ring[I915_NUM_RINGS];
+	struct intel_engine_cs engine[I915_NUM_RINGS];
 	struct drm_i915_gem_object *semaphore_obj;
 	uint32_t last_seqno, next_seqno;
 
@@ -1969,7 +1969,7 @@ static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
 /* Iterate over initialised rings */
 #define for_each_ring(ring__, dev_priv__, i__) \
 	for ((i__) = 0; (i__) < I915_NUM_RINGS; (i__)++) \
-		for_each_if ((((ring__) = &(dev_priv__)->ring[(i__)]), intel_ring_initialized((ring__))))
+		for_each_if ((((ring__) = &(dev_priv__)->engine[(i__)]), intel_ring_initialized((ring__))))
 
 enum hdmi_force_audio {
 	HDMI_AUDIO_OFF_DVI = -2,	/* no aux data for HDMI-DVI converter */
@@ -2184,7 +2184,7 @@ struct drm_i915_gem_request {
 
 	/** On Which ring this request was generated */
 	struct drm_i915_private *i915;
-	struct intel_engine_cs *ring;
+	struct intel_engine_cs *engine;
 
 	 /** GEM sequence number associated with the previous request,
 	  * when the HWS breadcrumb is equal to this the GPU is processing
@@ -2279,7 +2279,7 @@ i915_gem_request_get_seqno(struct drm_i915_gem_request *req)
 static inline struct intel_engine_cs *
 i915_gem_request_get_ring(struct drm_i915_gem_request *req)
 {
-	return req ? req->ring : NULL;
+	return req ? req->engine : NULL;
 }
 
 static inline struct drm_i915_gem_request *
@@ -2293,7 +2293,7 @@ i915_gem_request_reference(struct drm_i915_gem_request *req)
 static inline void
 i915_gem_request_unreference(struct drm_i915_gem_request *req)
 {
-	WARN_ON(!mutex_is_locked(&req->ring->dev->struct_mutex));
+	WARN_ON(!mutex_is_locked(&req->engine->dev->struct_mutex));
 	kref_put(&req->ref, i915_gem_request_free);
 }
 
@@ -2305,7 +2305,7 @@ i915_gem_request_unreference__unlocked(struct drm_i915_gem_request *req)
 	if (!req)
 		return;
 
-	dev = req->ring->dev;
+	dev = req->engine->dev;
 	if (kref_put_mutex(&req->ref, i915_gem_request_free, &dev->struct_mutex))
 		mutex_unlock(&dev->struct_mutex);
 }
@@ -2949,14 +2949,14 @@ i915_seqno_passed(uint32_t seq1, uint32_t seq2)
 static inline bool i915_gem_request_started(struct drm_i915_gem_request *req,
 					   bool lazy_coherency)
 {
-	u32 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
+	u32 seqno = req->engine->get_seqno(req->engine, lazy_coherency);
 	return i915_seqno_passed(seqno, req->previous_seqno);
 }
 
 static inline bool i915_gem_request_completed(struct drm_i915_gem_request *req,
 					      bool lazy_coherency)
 {
-	u32 seqno = req->ring->get_seqno(req->ring, lazy_coherency);
+	u32 seqno = req->engine->get_seqno(req->engine, lazy_coherency);
 	return i915_seqno_passed(seqno, req->seqno);
 }
 

drivers/gpu/drm/i915/i915_gem.c

@@ -1193,7 +1193,7 @@ static int __i915_spin_request(struct drm_i915_gem_request *req, int state)
 	 * takes to sleep on a request, on the order of a microsecond.
 	 */
 
-	if (req->ring->irq_refcount)
+	if (req->engine->irq_refcount)
 		return -EBUSY;
 
 	/* Only spin if we know the GPU is processing this request */
@@ -1381,7 +1381,7 @@ int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
 	if (req->file_priv)
 		return -EINVAL;
 
-	dev_private = req->ring->dev->dev_private;
+	dev_private = req->engine->dev->dev_private;
 	file_priv = file->driver_priv;
 
 	spin_lock(&file_priv->mm.lock);
@@ -1434,7 +1434,7 @@ static void i915_gem_request_retire(struct drm_i915_gem_request *request)
 static void
 __i915_gem_request_retire__upto(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_gem_request *tmp;
 
 	lockdep_assert_held(&engine->dev->struct_mutex);
@@ -1466,7 +1466,7 @@ i915_wait_request(struct drm_i915_gem_request *req)
 
 	BUG_ON(req == NULL);
 
-	dev = req->ring->dev;
+	dev = req->engine->dev;
 	dev_priv = dev->dev_private;
 	interruptible = dev_priv->mm.interruptible;
 
@@ -1505,7 +1505,7 @@ i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
 			if (ret)
 				return ret;
 
-			i = obj->last_write_req->ring->id;
+			i = obj->last_write_req->engine->id;
 			if (obj->last_read_req[i] == obj->last_write_req)
 				i915_gem_object_retire__read(obj, i);
 			else
@@ -1532,7 +1532,7 @@ static void
 i915_gem_object_retire_request(struct drm_i915_gem_object *obj,
 			       struct drm_i915_gem_request *req)
 {
-	int ring = req->ring->id;
+	int ring = req->engine->id;
 
 	if (obj->last_read_req[ring] == req)
 		i915_gem_object_retire__read(obj, ring);
@@ -2423,7 +2423,7 @@ static void
 i915_gem_object_retire__write(struct drm_i915_gem_object *obj)
 {
 	RQ_BUG_ON(obj->last_write_req == NULL);
-	RQ_BUG_ON(!(obj->active & intel_ring_flag(obj->last_write_req->ring)));
+	RQ_BUG_ON(!(obj->active & intel_ring_flag(obj->last_write_req->engine)));
 
 	i915_gem_request_assign(&obj->last_write_req, NULL);
 	intel_fb_obj_flush(obj, true, ORIGIN_CS);
@@ -2440,7 +2440,7 @@ i915_gem_object_retire__read(struct drm_i915_gem_object *obj, int ring)
 	list_del_init(&obj->ring_list[ring]);
 	i915_gem_request_assign(&obj->last_read_req[ring], NULL);
 
-	if (obj->last_write_req && obj->last_write_req->ring->id == ring)
+	if (obj->last_write_req && obj->last_write_req->engine->id == ring)
 		i915_gem_object_retire__write(obj);
 
 	obj->active &= ~(1 << ring);
@@ -2551,7 +2551,7 @@ void __i915_add_request(struct drm_i915_gem_request *request,
 	if (WARN_ON(request == NULL))
 		return;
 
-	engine = request->ring;
+	engine = request->engine;
 	dev_priv = engine->dev->dev_private;
 	ringbuf = request->ringbuf;
 
@@ -2680,7 +2680,7 @@ void i915_gem_request_free(struct kref *req_ref)
 
 	if (ctx) {
 		if (i915.enable_execlists && ctx != req->i915->kernel_context)
-			intel_lr_context_unpin(ctx, req->ring);
+			intel_lr_context_unpin(ctx, req->engine);
 
 		i915_gem_context_unreference(ctx);
 	}
@@ -2712,7 +2712,7 @@ __i915_gem_request_alloc(struct intel_engine_cs *engine,
 
 	kref_init(&req->ref);
 	req->i915 = dev_priv;
-	req->ring = engine;
+	req->engine = engine;
 	req->ctx  = ctx;
 	i915_gem_context_reference(req->ctx);
 
@@ -4364,10 +4364,10 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
 
 			req = obj->last_read_req[i];
 			if (req)
-				args->busy |= 1 << (16 + req->ring->exec_id);
+				args->busy |= 1 << (16 + req->engine->exec_id);
 		}
 		if (obj->last_write_req)
-			args->busy |= obj->last_write_req->ring->exec_id;
+			args->busy |= obj->last_write_req->engine->exec_id;
 	}
 
 unref:
@@ -4697,7 +4697,7 @@ err:
 
 int i915_gem_l3_remap(struct drm_i915_gem_request *req, int slice)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u32 *remap_info = dev_priv->l3_parity.remap_info[slice];
@@ -4814,13 +4814,13 @@ int i915_gem_init_rings(struct drm_device *dev)
 	return 0;
 
 cleanup_vebox_ring:
-	intel_cleanup_ring_buffer(&dev_priv->ring[VECS]);
+	intel_cleanup_ring_buffer(&dev_priv->engine[VECS]);
 cleanup_blt_ring:
-	intel_cleanup_ring_buffer(&dev_priv->ring[BCS]);
+	intel_cleanup_ring_buffer(&dev_priv->engine[BCS]);
 cleanup_bsd_ring:
-	intel_cleanup_ring_buffer(&dev_priv->ring[VCS]);
+	intel_cleanup_ring_buffer(&dev_priv->engine[VCS]);
 cleanup_render_ring:
-	intel_cleanup_ring_buffer(&dev_priv->ring[RCS]);
+	intel_cleanup_ring_buffer(&dev_priv->engine[RCS]);
 
 	return ret;
 }
@@ -5056,7 +5056,7 @@ i915_gem_load_init(struct drm_device *dev)
 	INIT_LIST_HEAD(&dev_priv->mm.bound_list);
 	INIT_LIST_HEAD(&dev_priv->mm.fence_list);
 	for (i = 0; i < I915_NUM_RINGS; i++)
-		init_ring_lists(&dev_priv->ring[i]);
+		init_ring_lists(&dev_priv->engine[i]);
 	for (i = 0; i < I915_MAX_NUM_FENCES; i++)
 		INIT_LIST_HEAD(&dev_priv->fence_regs[i].lru_list);
 	INIT_DELAYED_WORK(&dev_priv->mm.retire_work,

drivers/gpu/drm/i915/i915_gem_context.c

@@ -346,7 +346,7 @@ void i915_gem_context_reset(struct drm_device *dev)
 	}
 
 	for (i = 0; i < I915_NUM_RINGS; i++) {
-		struct intel_engine_cs *engine = &dev_priv->ring[i];
+		struct intel_engine_cs *engine = &dev_priv->engine[i];
 
 		if (engine->last_context) {
 			i915_gem_context_unpin(engine->last_context, engine);
@@ -421,13 +421,13 @@ void i915_gem_context_fini(struct drm_device *dev)
 		 * to default context. So we need to unreference the base object once
 		 * to offset the do_switch part, so that i915_gem_context_unreference()
 		 * can then free the base object correctly. */
-		WARN_ON(!dev_priv->ring[RCS].last_context);
+		WARN_ON(!dev_priv->engine[RCS].last_context);
 
 		i915_gem_object_ggtt_unpin(dctx->legacy_hw_ctx.rcs_state);
 	}
 
 	for (i = I915_NUM_RINGS; --i >= 0;) {
-		struct intel_engine_cs *engine = &dev_priv->ring[i];
+		struct intel_engine_cs *engine = &dev_priv->engine[i];
 
 		if (engine->last_context) {
 			i915_gem_context_unpin(engine->last_context, engine);
@@ -441,7 +441,7 @@ void i915_gem_context_fini(struct drm_device *dev)
 
 int i915_gem_context_enable(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	if (i915.enable_execlists) {
@@ -510,7 +510,7 @@ i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id)
 static inline int
 mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 flags = hw_flags | MI_MM_SPACE_GTT;
 	const int num_rings =
 		/* Use an extended w/a on ivb+ if signalling from other rings */
@@ -625,7 +625,7 @@ needs_pd_load_pre(struct intel_engine_cs *engine, struct intel_context *to)
 	if (INTEL_INFO(engine->dev)->gen < 8)
 		return true;
 
-	if (engine != &dev_priv->ring[RCS])
+	if (engine != &dev_priv->engine[RCS])
 		return true;
 
 	return false;
@@ -643,7 +643,7 @@ needs_pd_load_post(struct intel_engine_cs *engine, struct intel_context *to,
 	if (!IS_GEN8(engine->dev))
 		return false;
 
-	if (engine != &dev_priv->ring[RCS])
+	if (engine != &dev_priv->engine[RCS])
 		return false;
 
 	if (hw_flags & MI_RESTORE_INHIBIT)
@@ -655,14 +655,14 @@ needs_pd_load_post(struct intel_engine_cs *engine, struct intel_context *to,
 static int do_switch(struct drm_i915_gem_request *req)
 {
 	struct intel_context *to = req->ctx;
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = engine->dev->dev_private;
 	struct intel_context *from = engine->last_context;
 	u32 hw_flags = 0;
 	bool uninitialized = false;
 	int ret, i;
 
-	if (from != NULL && engine == &dev_priv->ring[RCS]) {
+	if (from != NULL && engine == &dev_priv->engine[RCS]) {
 		BUG_ON(from->legacy_hw_ctx.rcs_state == NULL);
 		BUG_ON(!i915_gem_obj_is_pinned(from->legacy_hw_ctx.rcs_state));
 	}
@@ -671,7 +671,7 @@ static int do_switch(struct drm_i915_gem_request *req)
 		return 0;
 
 	/* Trying to pin first makes error handling easier. */
-	if (engine == &dev_priv->ring[RCS]) {
+	if (engine == &dev_priv->engine[RCS]) {
 		ret = i915_gem_obj_ggtt_pin(to->legacy_hw_ctx.rcs_state,
 					    get_context_alignment(engine->dev),
 					    0);
@@ -700,7 +700,7 @@ static int do_switch(struct drm_i915_gem_request *req)
 		to->ppgtt->pd_dirty_rings &= ~intel_ring_flag(engine);
 	}
 
-	if (engine != &dev_priv->ring[RCS]) {
+	if (engine != &dev_priv->engine[RCS]) {
 		if (from)
 			i915_gem_context_unreference(from);
 		goto done;
@@ -828,7 +828,7 @@ unpin_out:
  */
 int i915_switch_context(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = engine->dev->dev_private;
 
 	WARN_ON(i915.enable_execlists);

drivers/gpu/drm/i915/i915_gem_execbuffer.c

@@ -942,7 +942,7 @@ static int
 i915_gem_execbuffer_move_to_gpu(struct drm_i915_gem_request *req,
 				struct list_head *vmas)
 {
-	const unsigned other_rings = ~intel_ring_flag(req->ring);
+	const unsigned other_rings = ~intel_ring_flag(req->engine);
 	struct i915_vma *vma;
 	uint32_t flush_domains = 0;
 	bool flush_chipset = false;
@@ -952,7 +952,7 @@ i915_gem_execbuffer_move_to_gpu(struct drm_i915_gem_request *req,
 		struct drm_i915_gem_object *obj = vma->obj;
 
 		if (obj->active & other_rings) {
-			ret = i915_gem_object_sync(obj, req->ring, &req);
+			ret = i915_gem_object_sync(obj, req->engine, &req);
 			if (ret)
 				return ret;
 		}
@@ -964,7 +964,7 @@ i915_gem_execbuffer_move_to_gpu(struct drm_i915_gem_request *req,
 	}
 
 	if (flush_chipset)
-		i915_gem_chipset_flush(req->ring->dev);
+		i915_gem_chipset_flush(req->engine->dev);
 
 	if (flush_domains & I915_GEM_DOMAIN_GTT)
 		wmb();
@@ -1140,7 +1140,7 @@ void
 i915_gem_execbuffer_retire_commands(struct i915_execbuffer_params *params)
 {
 	/* Unconditionally force add_request to emit a full flush. */
-	params->ring->gpu_caches_dirty = true;
+	params->engine->gpu_caches_dirty = true;
 
 	/* Add a breadcrumb for the completion of the batch buffer */
 	__i915_add_request(params->request, params->batch_obj, true);
@@ -1150,11 +1150,11 @@ static int
 i915_reset_gen7_sol_offsets(struct drm_device *dev,
 			    struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int ret, i;
 
-	if (!IS_GEN7(dev) || engine != &dev_priv->ring[RCS]) {
+	if (!IS_GEN7(dev) || engine != &dev_priv->engine[RCS]) {
 		DRM_DEBUG("sol reset is gen7/rcs only\n");
 		return -EINVAL;
 	}
@@ -1233,7 +1233,7 @@ i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
 			       struct list_head *vmas)
 {
 	struct drm_device *dev = params->dev;
-	struct intel_engine_cs *engine = params->ring;
+	struct intel_engine_cs *engine = params->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	u64 exec_start, exec_len;
 	int instp_mode;
@@ -1257,7 +1257,7 @@ i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
 	case I915_EXEC_CONSTANTS_REL_GENERAL:
 	case I915_EXEC_CONSTANTS_ABSOLUTE:
 	case I915_EXEC_CONSTANTS_REL_SURFACE:
-		if (instp_mode != 0 && engine != &dev_priv->ring[RCS]) {
+		if (instp_mode != 0 && engine != &dev_priv->engine[RCS]) {
 			DRM_DEBUG("non-0 rel constants mode on non-RCS\n");
 			return -EINVAL;
 		}
@@ -1284,7 +1284,7 @@ i915_gem_ringbuffer_submission(struct i915_execbuffer_params *params,
 		return -EINVAL;
 	}
 
-	if (engine == &dev_priv->ring[RCS] &&
+	if (engine == &dev_priv->engine[RCS] &&
 	    instp_mode != dev_priv->relative_constants_mode) {
 		ret = intel_ring_begin(params->request, 4);
 		if (ret)
@@ -1412,9 +1412,9 @@ eb_select_ring(struct drm_i915_private *dev_priv,
 			return -EINVAL;
 		}
 
-		*ring = &dev_priv->ring[_VCS(bsd_idx)];
+		*ring = &dev_priv->engine[_VCS(bsd_idx)];
 	} else {
-		*ring = &dev_priv->ring[user_ring_map[user_ring_id]];
+		*ring = &dev_priv->engine[user_ring_map[user_ring_id]];
 	}
 
 	if (!intel_ring_initialized(*ring)) {
@@ -1632,7 +1632,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	 */
 	params->dev                     = dev;
 	params->file                    = file;
-	params->ring                    = engine;
+	params->engine                    = engine;
 	params->dispatch_flags          = dispatch_flags;
 	params->batch_obj               = batch_obj;
 	params->ctx                     = ctx;

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -658,7 +658,7 @@ static int gen8_write_pdp(struct drm_i915_gem_request *req,
 			  unsigned entry,
 			  dma_addr_t addr)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	BUG_ON(entry >= 4);
@@ -1650,7 +1650,7 @@ static uint32_t get_pd_offset(struct i915_hw_ppgtt *ppgtt)
 static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
 			 struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	/* NB: TLBs must be flushed and invalidated before a switch */
@@ -1676,7 +1676,7 @@ static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
 static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt,
 			  struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = to_i915(ppgtt->base.dev);
 
 	I915_WRITE(RING_PP_DIR_DCLV(engine), PP_DIR_DCLV_2G);
@@ -1687,7 +1687,7 @@ static int vgpu_mm_switch(struct i915_hw_ppgtt *ppgtt,
 static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
 			  struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	/* NB: TLBs must be flushed and invalidated before a switch */
@@ -1720,7 +1720,7 @@ static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
 static int gen6_mm_switch(struct i915_hw_ppgtt *ppgtt,
 			  struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_device *dev = ppgtt->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
@@ -2192,7 +2192,7 @@ int i915_ppgtt_init_hw(struct drm_device *dev)
 
 int i915_ppgtt_init_ring(struct drm_i915_gem_request *req)
 {
-	struct drm_i915_private *dev_priv = req->ring->dev->dev_private;
+	struct drm_i915_private *dev_priv = req->engine->dev->dev_private;
 	struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
 
 	if (i915.enable_execlists)
@@ -2309,7 +2309,7 @@ void i915_check_and_clear_faults(struct drm_device *dev)
 				   fault_reg & ~RING_FAULT_VALID);
 		}
 	}
-	POSTING_READ(RING_FAULT_REG(&dev_priv->ring[RCS]));
+	POSTING_READ(RING_FAULT_REG(&dev_priv->engine[RCS]));
 }
 
 static void i915_ggtt_flush(struct drm_i915_private *dev_priv)

drivers/gpu/drm/i915/i915_gem_render_state.c

@@ -198,21 +198,21 @@ int i915_gem_render_state_init(struct drm_i915_gem_request *req)
 	struct render_state so;
 	int ret;
 
-	ret = i915_gem_render_state_prepare(req->ring, &so);
+	ret = i915_gem_render_state_prepare(req->engine, &so);
 	if (ret)
 		return ret;
 
 	if (so.rodata == NULL)
 		return 0;
 
-	ret = req->ring->dispatch_execbuffer(req, so.ggtt_offset,
+	ret = req->engine->dispatch_execbuffer(req, so.ggtt_offset,
 					     so.rodata->batch_items * 4,
 					     I915_DISPATCH_SECURE);
 	if (ret)
 		goto out;
 
 	if (so.aux_batch_size > 8) {
-		ret = req->ring->dispatch_execbuffer(req,
+		ret = req->engine->dispatch_execbuffer(req,
 						     (so.ggtt_offset +
 						      so.aux_batch_offset),
 						     so.aux_batch_size,

drivers/gpu/drm/i915/i915_gpu_error.c

@@ -431,7 +431,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 	for (i = 0; i < ARRAY_SIZE(error->ring); i++) {
 		obj = error->ring[i].batchbuffer;
 		if (obj) {
-			err_puts(m, dev_priv->ring[i].name);
+			err_puts(m, dev_priv->engine[i].name);
 			if (error->ring[i].pid != -1)
 				err_printf(m, " (submitted by %s [%d])",
 					   error->ring[i].comm,
@@ -445,14 +445,14 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 		obj = error->ring[i].wa_batchbuffer;
 		if (obj) {
 			err_printf(m, "%s (w/a) --- gtt_offset = 0x%08x\n",
-				   dev_priv->ring[i].name,
+				   dev_priv->engine[i].name,
 				   lower_32_bits(obj->gtt_offset));
 			print_error_obj(m, obj);
 		}
 
 		if (error->ring[i].num_requests) {
 			err_printf(m, "%s --- %d requests\n",
-				   dev_priv->ring[i].name,
+				   dev_priv->engine[i].name,
 				   error->ring[i].num_requests);
 			for (j = 0; j < error->ring[i].num_requests; j++) {
 				err_printf(m, "  seqno 0x%08x, emitted %ld, tail 0x%08x\n",
@@ -464,7 +464,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 
 		if ((obj = error->ring[i].ringbuffer)) {
 			err_printf(m, "%s --- ringbuffer = 0x%08x\n",
-				   dev_priv->ring[i].name,
+				   dev_priv->engine[i].name,
 				   lower_32_bits(obj->gtt_offset));
 			print_error_obj(m, obj);
 		}
@@ -478,7 +478,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 				hws_page = &obj->pages[LRC_PPHWSP_PN][0];
 			}
 			err_printf(m, "%s --- HW Status = 0x%08llx\n",
-				   dev_priv->ring[i].name, hws_offset);
+				   dev_priv->engine[i].name, hws_offset);
 			offset = 0;
 			for (elt = 0; elt < PAGE_SIZE/16; elt += 4) {
 				err_printf(m, "[%04x] %08x %08x %08x %08x\n",
@@ -495,12 +495,12 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 		if (obj) {
 			u64 wa_ctx_offset = obj->gtt_offset;
 			u32 *wa_ctx_page = &obj->pages[0][0];
-			struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+			struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 			u32 wa_ctx_size = (engine->wa_ctx.indirect_ctx.size +
 					   engine->wa_ctx.per_ctx.size);
 
 			err_printf(m, "%s --- WA ctx batch buffer = 0x%08llx\n",
-				   dev_priv->ring[i].name, wa_ctx_offset);
+				   dev_priv->engine[i].name, wa_ctx_offset);
 			offset = 0;
 			for (elt = 0; elt < wa_ctx_size; elt += 4) {
 				err_printf(m, "[%04x] %08x %08x %08x %08x\n",
@@ -515,7 +515,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
 
 		if ((obj = error->ring[i].ctx)) {
 			err_printf(m, "%s --- HW Context = 0x%08x\n",
-				   dev_priv->ring[i].name,
+				   dev_priv->engine[i].name,
 				   lower_32_bits(obj->gtt_offset));
 			print_error_obj(m, obj);
 		}
@@ -1020,7 +1020,7 @@ static void i915_gem_record_rings(struct drm_device *dev,
 	int i, count;
 
 	for (i = 0; i < I915_NUM_RINGS; i++) {
-		struct intel_engine_cs *engine = &dev_priv->ring[i];
+		struct intel_engine_cs *engine = &dev_priv->engine[i];
 		struct intel_ringbuffer *rbuf;
 
 		error->ring[i].pid = -1;

drivers/gpu/drm/i915/i915_guc_submission.c

@@ -542,11 +542,12 @@ static int guc_add_workqueue_item(struct i915_guc_client *gc,
 	wq_len = sizeof(struct guc_wq_item) / sizeof(u32) - 1;
 	wqi->header = WQ_TYPE_INORDER |
 			(wq_len << WQ_LEN_SHIFT) |
-			(rq->ring->guc_id << WQ_TARGET_SHIFT) |
+			(rq->engine->guc_id << WQ_TARGET_SHIFT) |
 			WQ_NO_WCFLUSH_WAIT;
 
 	/* The GuC wants only the low-order word of the context descriptor */
-	wqi->context_desc = (u32)intel_lr_context_descriptor(rq->ctx, rq->ring);
+	wqi->context_desc = (u32)intel_lr_context_descriptor(rq->ctx,
+							     rq->engine);
 
 	/* The GuC firmware wants the tail index in QWords, not bytes */
 	tail = rq->ringbuf->tail >> 3;
@@ -569,7 +570,7 @@ int i915_guc_submit(struct i915_guc_client *client,
 		    struct drm_i915_gem_request *rq)
 {
 	struct intel_guc *guc = client->guc;
-	unsigned int engine_id = rq->ring->guc_id;
+	unsigned int engine_id = rq->engine->guc_id;
 	int q_ret, b_ret;
 
 	q_ret = guc_add_workqueue_item(client, rq);
@@ -867,7 +868,7 @@ static void guc_create_ads(struct intel_guc *guc)
 	 * so its address won't change after we've told the GuC where
 	 * to find it.
 	 */
-	engine = &dev_priv->ring[RCS];
+	engine = &dev_priv->engine[RCS];
 	ads->golden_context_lrca = engine->status_page.gfx_addr;
 
 	for_each_ring(engine, dev_priv, i)

drivers/gpu/drm/i915/i915_irq.c

@@ -1291,9 +1291,9 @@ static void ilk_gt_irq_handler(struct drm_device *dev,
 {
 	if (gt_iir &
 	    (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
-		notify_ring(&dev_priv->ring[RCS]);
+		notify_ring(&dev_priv->engine[RCS]);
 	if (gt_iir & ILK_BSD_USER_INTERRUPT)
-		notify_ring(&dev_priv->ring[VCS]);
+		notify_ring(&dev_priv->engine[VCS]);
 }
 
 static void snb_gt_irq_handler(struct drm_device *dev,
@@ -1303,11 +1303,11 @@ static void snb_gt_irq_handler(struct drm_device *dev,
 
 	if (gt_iir &
 	    (GT_RENDER_USER_INTERRUPT | GT_RENDER_PIPECTL_NOTIFY_INTERRUPT))
-		notify_ring(&dev_priv->ring[RCS]);
+		notify_ring(&dev_priv->engine[RCS]);
 	if (gt_iir & GT_BSD_USER_INTERRUPT)
-		notify_ring(&dev_priv->ring[VCS]);
+		notify_ring(&dev_priv->engine[VCS]);
 	if (gt_iir & GT_BLT_USER_INTERRUPT)
-		notify_ring(&dev_priv->ring[BCS]);
+		notify_ring(&dev_priv->engine[BCS]);
 
 	if (gt_iir & (GT_BLT_CS_ERROR_INTERRUPT |
 		      GT_BSD_CS_ERROR_INTERRUPT |
@@ -1338,11 +1338,11 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
 			I915_WRITE_FW(GEN8_GT_IIR(0), iir);
 			ret = IRQ_HANDLED;
 
-			gen8_cs_irq_handler(&dev_priv->ring[RCS],
-					iir, GEN8_RCS_IRQ_SHIFT);
+			gen8_cs_irq_handler(&dev_priv->engine[RCS],
+					    iir, GEN8_RCS_IRQ_SHIFT);
 
-			gen8_cs_irq_handler(&dev_priv->ring[BCS],
-					iir, GEN8_BCS_IRQ_SHIFT);
+			gen8_cs_irq_handler(&dev_priv->engine[BCS],
+					    iir, GEN8_BCS_IRQ_SHIFT);
 		} else
 			DRM_ERROR("The master control interrupt lied (GT0)!\n");
 	}
@@ -1353,11 +1353,11 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
 			I915_WRITE_FW(GEN8_GT_IIR(1), iir);
 			ret = IRQ_HANDLED;
 
-			gen8_cs_irq_handler(&dev_priv->ring[VCS],
-					iir, GEN8_VCS1_IRQ_SHIFT);
+			gen8_cs_irq_handler(&dev_priv->engine[VCS],
+					    iir, GEN8_VCS1_IRQ_SHIFT);
 
-			gen8_cs_irq_handler(&dev_priv->ring[VCS2],
-					iir, GEN8_VCS2_IRQ_SHIFT);
+			gen8_cs_irq_handler(&dev_priv->engine[VCS2],
+					    iir, GEN8_VCS2_IRQ_SHIFT);
 		} else
 			DRM_ERROR("The master control interrupt lied (GT1)!\n");
 	}
@@ -1368,8 +1368,8 @@ static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
 			I915_WRITE_FW(GEN8_GT_IIR(3), iir);
 			ret = IRQ_HANDLED;
 
-			gen8_cs_irq_handler(&dev_priv->ring[VECS],
-					iir, GEN8_VECS_IRQ_SHIFT);
+			gen8_cs_irq_handler(&dev_priv->engine[VECS],
+					    iir, GEN8_VECS_IRQ_SHIFT);
 		} else
 			DRM_ERROR("The master control interrupt lied (GT3)!\n");
 	}
@@ -1629,7 +1629,7 @@ static void gen6_rps_irq_handler(struct drm_i915_private *dev_priv, u32 pm_iir)
 
 	if (HAS_VEBOX(dev_priv->dev)) {
 		if (pm_iir & PM_VEBOX_USER_INTERRUPT)
-			notify_ring(&dev_priv->ring[VECS]);
+			notify_ring(&dev_priv->engine[VECS]);
 
 		if (pm_iir & PM_VEBOX_CS_ERROR_INTERRUPT)
 			DRM_DEBUG("Command parser error, pm_iir 0x%08x\n", pm_iir);
@@ -4042,7 +4042,7 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
 		new_iir = I915_READ16(IIR); /* Flush posted writes */
 
 		if (iir & I915_USER_INTERRUPT)
-			notify_ring(&dev_priv->ring[RCS]);
+			notify_ring(&dev_priv->engine[RCS]);
 
 		for_each_pipe(dev_priv, pipe) {
 			int plane = pipe;
@@ -4238,7 +4238,7 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
 		new_iir = I915_READ(IIR); /* Flush posted writes */
 
 		if (iir & I915_USER_INTERRUPT)
-			notify_ring(&dev_priv->ring[RCS]);
+			notify_ring(&dev_priv->engine[RCS]);
 
 		for_each_pipe(dev_priv, pipe) {
 			int plane = pipe;
@@ -4468,9 +4468,9 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
 		new_iir = I915_READ(IIR); /* Flush posted writes */
 
 		if (iir & I915_USER_INTERRUPT)
-			notify_ring(&dev_priv->ring[RCS]);
+			notify_ring(&dev_priv->engine[RCS]);
 		if (iir & I915_BSD_USER_INTERRUPT)
-			notify_ring(&dev_priv->ring[VCS]);
+			notify_ring(&dev_priv->engine[VCS]);
 
 		for_each_pipe(dev_priv, pipe) {
 			if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS &&

drivers/gpu/drm/i915/i915_trace.h

@@ -464,7 +464,7 @@ TRACE_EVENT(i915_gem_ring_sync_to,
 	    TP_fast_assign(
 			   __entry->dev = from->dev->primary->index;
 			   __entry->sync_from = from->id;
-			   __entry->sync_to = to_req->ring->id;
+			   __entry->sync_to = to_req->engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
 			   ),
 
@@ -486,13 +486,13 @@ TRACE_EVENT(i915_gem_ring_dispatch,
 			     ),
 
 	    TP_fast_assign(
-			   struct intel_engine_cs *ring =
+			   struct intel_engine_cs *engine =
 						i915_gem_request_get_ring(req);
-			   __entry->dev = ring->dev->primary->index;
-			   __entry->ring = ring->id;
+			   __entry->dev = engine->dev->primary->index;
+			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
 			   __entry->flags = flags;
-			   i915_trace_irq_get(ring, req);
+			   i915_trace_irq_get(engine, req);
 			   ),
 
 	    TP_printk("dev=%u, ring=%u, seqno=%u, flags=%x",
@@ -511,8 +511,8 @@ TRACE_EVENT(i915_gem_ring_flush,
 			     ),
 
 	    TP_fast_assign(
-			   __entry->dev = req->ring->dev->primary->index;
-			   __entry->ring = req->ring->id;
+			   __entry->dev = req->engine->dev->primary->index;
+			   __entry->ring = req->engine->id;
 			   __entry->invalidate = invalidate;
 			   __entry->flush = flush;
 			   ),
@@ -533,10 +533,10 @@ DECLARE_EVENT_CLASS(i915_gem_request,
 			     ),
 
 	    TP_fast_assign(
-			   struct intel_engine_cs *ring =
+			   struct intel_engine_cs *engine =
 						i915_gem_request_get_ring(req);
-			   __entry->dev = ring->dev->primary->index;
-			   __entry->ring = ring->id;
+			   __entry->dev = engine->dev->primary->index;
+			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
 			   ),
 
@@ -550,8 +550,8 @@ DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
 );
 
 TRACE_EVENT(i915_gem_request_notify,
-	    TP_PROTO(struct intel_engine_cs *ring),
-	    TP_ARGS(ring),
+	    TP_PROTO(struct intel_engine_cs *engine),
+	    TP_ARGS(engine),
 
 	    TP_STRUCT__entry(
 			     __field(u32, dev)
@@ -560,9 +560,9 @@ TRACE_EVENT(i915_gem_request_notify,
 			     ),
 
 	    TP_fast_assign(
-			   __entry->dev = ring->dev->primary->index;
-			   __entry->ring = ring->id;
-			   __entry->seqno = ring->get_seqno(ring, false);
+			   __entry->dev = engine->dev->primary->index;
+			   __entry->ring = engine->id;
+			   __entry->seqno = engine->get_seqno(engine, false);
 			   ),
 
 	    TP_printk("dev=%u, ring=%u, seqno=%u",
@@ -597,13 +597,13 @@ TRACE_EVENT(i915_gem_request_wait_begin,
 	     * less desirable.
 	     */
 	    TP_fast_assign(
-			   struct intel_engine_cs *ring =
+			   struct intel_engine_cs *engine =
 						i915_gem_request_get_ring(req);
-			   __entry->dev = ring->dev->primary->index;
-			   __entry->ring = ring->id;
+			   __entry->dev = engine->dev->primary->index;
+			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
 			   __entry->blocking =
-				     mutex_is_locked(&ring->dev->struct_mutex);
+				     mutex_is_locked(&engine->dev->struct_mutex);
 			   ),
 
 	    TP_printk("dev=%u, ring=%u, seqno=%u, blocking=%s",
@@ -777,9 +777,9 @@ DEFINE_EVENT(i915_context, i915_context_free,
  * called only if full ppgtt is enabled.
  */
 TRACE_EVENT(switch_mm,
-	TP_PROTO(struct intel_engine_cs *ring, struct intel_context *to),
+	TP_PROTO(struct intel_engine_cs *engine, struct intel_context *to),
 
-	TP_ARGS(ring, to),
+	TP_ARGS(engine, to),
 
 	TP_STRUCT__entry(
 			__field(u32, ring)
@@ -789,10 +789,10 @@ TRACE_EVENT(switch_mm,
 	),
 
 	TP_fast_assign(
-			__entry->ring = ring->id;
+			__entry->ring = engine->id;
 			__entry->to = to;
 			__entry->vm = to->ppgtt? &to->ppgtt->base : NULL;
-			__entry->dev = ring->dev->primary->index;
+			__entry->dev = engine->dev->primary->index;
 	),
 
 	TP_printk("dev=%u, ring=%u, ctx=%p, ctx_vm=%p",

drivers/gpu/drm/i915/intel_display.c

@@ -10984,7 +10984,7 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
 				 struct drm_i915_gem_request *req,
 				 uint32_t flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	u32 flip_mask;
 	int ret;
@@ -11019,7 +11019,7 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
 				 struct drm_i915_gem_request *req,
 				 uint32_t flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	u32 flip_mask;
 	int ret;
@@ -11051,7 +11051,7 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
 				 struct drm_i915_gem_request *req,
 				 uint32_t flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t pf, pipesrc;
@@ -11090,7 +11090,7 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
 				 struct drm_i915_gem_request *req,
 				 uint32_t flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t pf, pipesrc;
@@ -11126,7 +11126,7 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 				 struct drm_i915_gem_request *req,
 				 uint32_t flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	uint32_t plane_bit = 0;
 	int len, ret;
@@ -11575,18 +11575,18 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 		work->flip_count = I915_READ(PIPE_FLIPCOUNT_G4X(pipe)) + 1;
 
 	if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
-		engine = &dev_priv->ring[BCS];
+		engine = &dev_priv->engine[BCS];
 		if (obj->tiling_mode != intel_fb_obj(work->old_fb)->tiling_mode)
 			/* vlv: DISPLAY_FLIP fails to change tiling */
 			engine = NULL;
 	} else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
-		engine = &dev_priv->ring[BCS];
+		engine = &dev_priv->engine[BCS];
 	} else if (INTEL_INFO(dev)->gen >= 7) {
 		engine = i915_gem_request_get_ring(obj->last_write_req);
 		if (engine == NULL || engine->id != RCS)
-			engine = &dev_priv->ring[BCS];
+			engine = &dev_priv->engine[BCS];
 	} else {
-		engine = &dev_priv->ring[RCS];
+		engine = &dev_priv->engine[RCS];
 	}
 
 	mmio_flip = use_mmio_flip(engine, obj);

drivers/gpu/drm/i915/intel_lrc.c

@@ -360,19 +360,19 @@ static void execlists_elsp_write(struct drm_i915_gem_request *rq0,
 				 struct drm_i915_gem_request *rq1)
 {
 
-	struct intel_engine_cs *engine = rq0->ring;
+	struct intel_engine_cs *engine = rq0->engine;
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint64_t desc[2];
 
 	if (rq1) {
-		desc[1] = intel_lr_context_descriptor(rq1->ctx, rq1->ring);
+		desc[1] = intel_lr_context_descriptor(rq1->ctx, rq1->engine);
 		rq1->elsp_submitted++;
 	} else {
 		desc[1] = 0;
 	}
 
-	desc[0] = intel_lr_context_descriptor(rq0->ctx, rq0->ring);
+	desc[0] = intel_lr_context_descriptor(rq0->ctx, rq0->engine);
 	rq0->elsp_submitted++;
 
 	/* You must always write both descriptors in the order below. */
@@ -398,7 +398,7 @@ execlists_update_context_pdps(struct i915_hw_ppgtt *ppgtt, u32 *reg_state)
 
 static void execlists_update_context(struct drm_i915_gem_request *rq)
 {
-	struct intel_engine_cs *engine = rq->ring;
+	struct intel_engine_cs *engine = rq->engine;
 	struct i915_hw_ppgtt *ppgtt = rq->ctx->ppgtt;
 	uint32_t *reg_state = rq->ctx->engine[engine->id].lrc_reg_state;
 
@@ -611,7 +611,7 @@ void intel_lrc_irq_handler(struct intel_engine_cs *engine)
 
 static void execlists_context_queue(struct drm_i915_gem_request *request)
 {
-	struct intel_engine_cs *engine = request->ring;
+	struct intel_engine_cs *engine = request->engine;
 	struct drm_i915_gem_request *cursor;
 	int num_elements = 0;
 
@@ -650,7 +650,7 @@ static void execlists_context_queue(struct drm_i915_gem_request *request)
 
 static int logical_ring_invalidate_all_caches(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	uint32_t flush_domains;
 	int ret;
 
@@ -669,7 +669,7 @@ static int logical_ring_invalidate_all_caches(struct drm_i915_gem_request *req)
 static int execlists_move_to_gpu(struct drm_i915_gem_request *req,
 				 struct list_head *vmas)
 {
-	const unsigned other_rings = ~intel_ring_flag(req->ring);
+	const unsigned other_rings = ~intel_ring_flag(req->engine);
 	struct i915_vma *vma;
 	uint32_t flush_domains = 0;
 	bool flush_chipset = false;
@@ -679,7 +679,7 @@ static int execlists_move_to_gpu(struct drm_i915_gem_request *req,
 		struct drm_i915_gem_object *obj = vma->obj;
 
 		if (obj->active & other_rings) {
-			ret = i915_gem_object_sync(obj, req->ring, &req);
+			ret = i915_gem_object_sync(obj, req->engine, &req);
 			if (ret)
 				return ret;
 		}
@@ -703,7 +703,7 @@ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request
 {
 	int ret = 0;
 
-	request->ringbuf = request->ctx->engine[request->ring->id].ringbuf;
+	request->ringbuf = request->ctx->engine[request->engine->id].ringbuf;
 
 	if (i915.enable_guc_submission) {
 		/*
@@ -719,7 +719,7 @@ int intel_logical_ring_alloc_request_extras(struct drm_i915_gem_request *request
 	}
 
 	if (request->ctx != request->i915->kernel_context)
-		ret = intel_lr_context_pin(request->ctx, request->ring);
+		ret = intel_lr_context_pin(request->ctx, request->engine);
 
 	return ret;
 }
@@ -728,7 +728,7 @@ static int logical_ring_wait_for_space(struct drm_i915_gem_request *req,
 				       int bytes)
 {
 	struct intel_ringbuffer *ringbuf = req->ringbuf;
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_i915_gem_request *target;
 	unsigned space;
 	int ret;
@@ -780,7 +780,7 @@ intel_logical_ring_advance_and_submit(struct drm_i915_gem_request *request)
 {
 	struct intel_ringbuffer *ringbuf = request->ringbuf;
 	struct drm_i915_private *dev_priv = request->i915;
-	struct intel_engine_cs *engine = request->ring;
+	struct intel_engine_cs *engine = request->engine;
 
 	intel_logical_ring_advance(ringbuf);
 	request->tail = ringbuf->tail;
@@ -897,7 +897,7 @@ int intel_logical_ring_begin(struct drm_i915_gem_request *req, int num_dwords)
 	int ret;
 
 	WARN_ON(req == NULL);
-	dev_priv = req->ring->dev->dev_private;
+	dev_priv = req->engine->dev->dev_private;
 
 	ret = i915_gem_check_wedge(&dev_priv->gpu_error,
 				   dev_priv->mm.interruptible);
@@ -949,7 +949,7 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
 			       struct list_head *vmas)
 {
 	struct drm_device       *dev = params->dev;
-	struct intel_engine_cs *engine = params->ring;
+	struct intel_engine_cs *engine = params->engine;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_ringbuffer *ringbuf = params->ctx->engine[engine->id].ringbuf;
 	u64 exec_start;
@@ -963,7 +963,7 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
 	case I915_EXEC_CONSTANTS_REL_GENERAL:
 	case I915_EXEC_CONSTANTS_ABSOLUTE:
 	case I915_EXEC_CONSTANTS_REL_SURFACE:
-		if (instp_mode != 0 && engine != &dev_priv->ring[RCS]) {
+		if (instp_mode != 0 && engine != &dev_priv->engine[RCS]) {
 			DRM_DEBUG("non-0 rel constants mode on non-RCS\n");
 			return -EINVAL;
 		}
@@ -992,7 +992,7 @@ int intel_execlists_submission(struct i915_execbuffer_params *params,
 	if (ret)
 		return ret;
 
-	if (engine == &dev_priv->ring[RCS] &&
+	if (engine == &dev_priv->engine[RCS] &&
 	    instp_mode != dev_priv->relative_constants_mode) {
 		ret = intel_logical_ring_begin(params->request, 4);
 		if (ret)
@@ -1073,7 +1073,7 @@ void intel_logical_ring_stop(struct intel_engine_cs *engine)
 
 int logical_ring_flush_all_caches(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	if (!engine->gpu_caches_dirty)
@@ -1174,7 +1174,7 @@ void intel_lr_context_unpin(struct intel_context *ctx,
 static int intel_logical_ring_workarounds_emit(struct drm_i915_gem_request *req)
 {
 	int ret, i;
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct intel_ringbuffer *ringbuf = req->ringbuf;
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1647,7 +1647,7 @@ static int gen9_init_render_ring(struct intel_engine_cs *engine)
 static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req)
 {
 	struct i915_hw_ppgtt *ppgtt = req->ctx->ppgtt;
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct intel_ringbuffer *ringbuf = req->ringbuf;
 	const int num_lri_cmds = GEN8_LEGACY_PDPES * 2;
 	int i, ret;
@@ -1688,7 +1688,7 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
 	 * not idle). PML4 is allocated during ppgtt init so this is
 	 * not needed in 48-bit.*/
 	if (req->ctx->ppgtt &&
-	    (intel_ring_flag(req->ring) & req->ctx->ppgtt->pd_dirty_rings)) {
+	    (intel_ring_flag(req->engine) & req->ctx->ppgtt->pd_dirty_rings)) {
 		if (!USES_FULL_48BIT_PPGTT(req->i915) &&
 		    !intel_vgpu_active(req->i915->dev)) {
 			ret = intel_logical_ring_emit_pdps(req);
@@ -1696,7 +1696,7 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req,
 				return ret;
 		}
 
-		req->ctx->ppgtt->pd_dirty_rings &= ~intel_ring_flag(req->ring);
+		req->ctx->ppgtt->pd_dirty_rings &= ~intel_ring_flag(req->engine);
 	}
 
 	ret = intel_logical_ring_begin(req, 4);
@@ -1755,7 +1755,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request *request,
 			   u32 unused)
 {
 	struct intel_ringbuffer *ringbuf = request->ringbuf;
-	struct intel_engine_cs *engine = ringbuf->ring;
+	struct intel_engine_cs *engine = ringbuf->engine;
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	uint32_t cmd;
@@ -1776,7 +1776,7 @@ static int gen8_emit_flush(struct drm_i915_gem_request *request,
 
 	if (invalidate_domains & I915_GEM_GPU_DOMAINS) {
 		cmd |= MI_INVALIDATE_TLB;
-		if (engine == &dev_priv->ring[VCS])
+		if (engine == &dev_priv->engine[VCS])
 			cmd |= MI_INVALIDATE_BSD;
 	}
 
@@ -1796,7 +1796,7 @@ static int gen8_emit_flush_render(struct drm_i915_gem_request *request,
 				  u32 flush_domains)
 {
 	struct intel_ringbuffer *ringbuf = request->ringbuf;
-	struct intel_engine_cs *engine = ringbuf->ring;
+	struct intel_engine_cs *engine = ringbuf->engine;
 	u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	bool vf_flush_wa = false;
 	u32 flags = 0;
@@ -1919,7 +1919,7 @@ static int gen8_emit_request(struct drm_i915_gem_request *request)
 	intel_logical_ring_emit(ringbuf,
 				(MI_FLUSH_DW + 1) | MI_FLUSH_DW_OP_STOREDW);
 	intel_logical_ring_emit(ringbuf,
-				hws_seqno_address(request->ring) |
+				hws_seqno_address(request->engine) |
 				MI_FLUSH_DW_USE_GTT);
 	intel_logical_ring_emit(ringbuf, 0);
 	intel_logical_ring_emit(ringbuf, i915_gem_request_get_seqno(request));
@@ -1946,7 +1946,7 @@ static int gen8_emit_request_render(struct drm_i915_gem_request *request)
 				(PIPE_CONTROL_GLOBAL_GTT_IVB |
 				 PIPE_CONTROL_CS_STALL |
 				 PIPE_CONTROL_QW_WRITE));
-	intel_logical_ring_emit(ringbuf, hws_seqno_address(request->ring));
+	intel_logical_ring_emit(ringbuf, hws_seqno_address(request->engine));
 	intel_logical_ring_emit(ringbuf, 0);
 	intel_logical_ring_emit(ringbuf, i915_gem_request_get_seqno(request));
 	intel_logical_ring_emit(ringbuf, MI_USER_INTERRUPT);
@@ -1958,19 +1958,19 @@ static int intel_lr_context_render_state_init(struct drm_i915_gem_request *req)
 	struct render_state so;
 	int ret;
 
-	ret = i915_gem_render_state_prepare(req->ring, &so);
+	ret = i915_gem_render_state_prepare(req->engine, &so);
 	if (ret)
 		return ret;
 
 	if (so.rodata == NULL)
 		return 0;
 
-	ret = req->ring->emit_bb_start(req, so.ggtt_offset,
+	ret = req->engine->emit_bb_start(req, so.ggtt_offset,
 				       I915_DISPATCH_SECURE);
 	if (ret)
 		goto out;
 
-	ret = req->ring->emit_bb_start(req,
+	ret = req->engine->emit_bb_start(req,
 				       (so.ggtt_offset + so.aux_batch_offset),
 				       I915_DISPATCH_SECURE);
 	if (ret)
@@ -2117,7 +2117,7 @@ error:
 static int logical_render_ring_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	int ret;
 
 	engine->name = "render ring";
@@ -2170,7 +2170,7 @@ static int logical_render_ring_init(struct drm_device *dev)
 static int logical_bsd_ring_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[VCS];
 
 	engine->name = "bsd ring";
 	engine->id = VCS;
@@ -2187,7 +2187,7 @@ static int logical_bsd_ring_init(struct drm_device *dev)
 static int logical_bsd2_ring_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VCS2];
+	struct intel_engine_cs *engine = &dev_priv->engine[VCS2];
 
 	engine->name = "bsd2 ring";
 	engine->id = VCS2;
@@ -2204,7 +2204,7 @@ static int logical_bsd2_ring_init(struct drm_device *dev)
 static int logical_blt_ring_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[BCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[BCS];
 
 	engine->name = "blitter ring";
 	engine->id = BCS;
@@ -2221,7 +2221,7 @@ static int logical_blt_ring_init(struct drm_device *dev)
 static int logical_vebox_ring_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VECS];
+	struct intel_engine_cs *engine = &dev_priv->engine[VECS];
 
 	engine->name = "video enhancement ring";
 	engine->id = VECS;
@@ -2281,13 +2281,13 @@ int intel_logical_rings_init(struct drm_device *dev)
 	return 0;
 
 cleanup_vebox_ring:
-	intel_logical_ring_cleanup(&dev_priv->ring[VECS]);
+	intel_logical_ring_cleanup(&dev_priv->engine[VECS]);
 cleanup_blt_ring:
-	intel_logical_ring_cleanup(&dev_priv->ring[BCS]);
+	intel_logical_ring_cleanup(&dev_priv->engine[BCS]);
 cleanup_bsd_ring:
-	intel_logical_ring_cleanup(&dev_priv->ring[VCS]);
+	intel_logical_ring_cleanup(&dev_priv->engine[VCS]);
 cleanup_render_ring:
-	intel_logical_ring_cleanup(&dev_priv->ring[RCS]);
+	intel_logical_ring_cleanup(&dev_priv->engine[RCS]);
 
 	return ret;
 }

drivers/gpu/drm/i915/intel_mocs.c

@@ -322,7 +322,7 @@ int intel_rcs_context_init_mocs(struct drm_i915_gem_request *req)
 	struct drm_i915_mocs_table t;
 	int ret;
 
-	if (get_mocs_settings(req->ring->dev, &t)) {
+	if (get_mocs_settings(req->engine->dev, &t)) {
 		struct drm_i915_private *dev_priv = req->i915;
 		struct intel_engine_cs *engine;
 		enum intel_ring_id ring_id;

drivers/gpu/drm/i915/intel_overlay.c

@@ -233,7 +233,7 @@ static int intel_overlay_on(struct intel_overlay *overlay)
 {
 	struct drm_device *dev = overlay->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	struct drm_i915_gem_request *req;
 	int ret;
 
@@ -267,7 +267,7 @@ static int intel_overlay_continue(struct intel_overlay *overlay,
 {
 	struct drm_device *dev = overlay->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	struct drm_i915_gem_request *req;
 	u32 flip_addr = overlay->flip_addr;
 	u32 tmp;
@@ -336,7 +336,7 @@ static int intel_overlay_off(struct intel_overlay *overlay)
 {
 	struct drm_device *dev = overlay->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	struct drm_i915_gem_request *req;
 	u32 flip_addr = overlay->flip_addr;
 	int ret;
@@ -409,7 +409,7 @@ static int intel_overlay_release_old_vid(struct intel_overlay *overlay)
 {
 	struct drm_device *dev = overlay->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	int ret;
 
 	WARN_ON(!mutex_is_locked(&dev->struct_mutex));

drivers/gpu/drm/i915/intel_pm.c

@@ -7365,7 +7365,7 @@ static void __intel_rps_boost_work(struct work_struct *work)
 	struct drm_i915_gem_request *req = boost->req;
 
 	if (!i915_gem_request_completed(req, true))
-		gen6_rps_boost(to_i915(req->ring->dev), NULL,
+		gen6_rps_boost(to_i915(req->engine->dev), NULL,
 			       req->emitted_jiffies);
 
 	i915_gem_request_unreference__unlocked(req);

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -79,7 +79,7 @@ gen2_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32	invalidate_domains,
 		       u32	flush_domains)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 cmd;
 	int ret;
 
@@ -106,7 +106,7 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32	invalidate_domains,
 		       u32	flush_domains)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_device *dev = engine->dev;
 	u32 cmd;
 	int ret;
@@ -200,7 +200,7 @@ gen4_render_ring_flush(struct drm_i915_gem_request *req,
 static int
 intel_emit_post_sync_nonzero_flush(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
 
@@ -236,7 +236,7 @@ static int
 gen6_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32 invalidate_domains, u32 flush_domains)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 flags = 0;
 	u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
@@ -288,7 +288,7 @@ gen6_render_ring_flush(struct drm_i915_gem_request *req,
 static int
 gen7_render_ring_cs_stall_wa(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 4);
@@ -309,7 +309,7 @@ static int
 gen7_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32 invalidate_domains, u32 flush_domains)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 flags = 0;
 	u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
@@ -373,7 +373,7 @@ static int
 gen8_emit_pipe_control(struct drm_i915_gem_request *req,
 		       u32 flags, u32 scratch_addr)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 6);
@@ -396,7 +396,7 @@ gen8_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32 invalidate_domains, u32 flush_domains)
 {
 	u32 flags = 0;
-	u32 scratch_addr = req->ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
+	u32 scratch_addr = req->engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
 
 	flags |= PIPE_CONTROL_CS_STALL;
@@ -704,7 +704,7 @@ err:
 static int intel_ring_workarounds_emit(struct drm_i915_gem_request *req)
 {
 	int ret, i;
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct i915_workarounds *w = &dev_priv->workarounds;
@@ -1269,7 +1269,7 @@ static int gen8_rcs_signal(struct drm_i915_gem_request *signaller_req,
 			   unsigned int num_dwords)
 {
 #define MBOX_UPDATE_DWORDS 8
-	struct intel_engine_cs *signaller = signaller_req->ring;
+	struct intel_engine_cs *signaller = signaller_req->engine;
 	struct drm_device *dev = signaller->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *waiter;
@@ -1310,7 +1310,7 @@ static int gen8_xcs_signal(struct drm_i915_gem_request *signaller_req,
 			   unsigned int num_dwords)
 {
 #define MBOX_UPDATE_DWORDS 6
-	struct intel_engine_cs *signaller = signaller_req->ring;
+	struct intel_engine_cs *signaller = signaller_req->engine;
 	struct drm_device *dev = signaller->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *waiter;
@@ -1348,7 +1348,7 @@ static int gen8_xcs_signal(struct drm_i915_gem_request *signaller_req,
 static int gen6_signal(struct drm_i915_gem_request *signaller_req,
 		       unsigned int num_dwords)
 {
-	struct intel_engine_cs *signaller = signaller_req->ring;
+	struct intel_engine_cs *signaller = signaller_req->engine;
 	struct drm_device *dev = signaller->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *useless;
@@ -1393,7 +1393,7 @@ static int gen6_signal(struct drm_i915_gem_request *signaller_req,
 static int
 gen6_add_request(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	if (engine->semaphore.signal)
@@ -1434,7 +1434,7 @@ gen8_ring_sync(struct drm_i915_gem_request *waiter_req,
 	       struct intel_engine_cs *signaller,
 	       u32 seqno)
 {
-	struct intel_engine_cs *waiter = waiter_req->ring;
+	struct intel_engine_cs *waiter = waiter_req->engine;
 	struct drm_i915_private *dev_priv = waiter->dev->dev_private;
 	int ret;
 
@@ -1460,7 +1460,7 @@ gen6_ring_sync(struct drm_i915_gem_request *waiter_req,
 	       struct intel_engine_cs *signaller,
 	       u32 seqno)
 {
-	struct intel_engine_cs *waiter = waiter_req->ring;
+	struct intel_engine_cs *waiter = waiter_req->engine;
 	u32 dw1 = MI_SEMAPHORE_MBOX |
 		  MI_SEMAPHORE_COMPARE |
 		  MI_SEMAPHORE_REGISTER;
@@ -1508,7 +1508,7 @@ do {									\
 static int
 pc_render_add_request(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 scratch_addr = engine->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
 
@@ -1706,7 +1706,7 @@ bsd_ring_flush(struct drm_i915_gem_request *req,
 	       u32     invalidate_domains,
 	       u32     flush_domains)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 2);
@@ -1722,7 +1722,7 @@ bsd_ring_flush(struct drm_i915_gem_request *req,
 static int
 i9xx_add_request(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 4);
@@ -1868,7 +1868,7 @@ i965_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			 u64 offset, u32 length,
 			 unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 2);
@@ -1895,7 +1895,7 @@ i830_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			 u64 offset, u32 len,
 			 unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	u32 cs_offset = engine->scratch.gtt_offset;
 	int ret;
 
@@ -1957,7 +1957,7 @@ i915_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			 u64 offset, u32 len,
 			 unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 2);
@@ -2187,7 +2187,7 @@ intel_engine_create_ringbuffer(struct intel_engine_cs *engine, int size)
 		return ERR_PTR(-ENOMEM);
 	}
 
-	ring->ring = engine;
+	ring->engine = engine;
 	list_add(&ring->link, &engine->buffers);
 
 	ring->size = size;
@@ -2377,7 +2377,7 @@ int intel_ring_idle(struct intel_engine_cs *engine)
 
 int intel_ring_alloc_request_extras(struct drm_i915_gem_request *request)
 {
-	request->ringbuf = request->ring->buffer;
+	request->ringbuf = request->engine->buffer;
 	return 0;
 }
 
@@ -2498,7 +2498,7 @@ int intel_ring_begin(struct drm_i915_gem_request *req,
 	int ret;
 
 	WARN_ON(req == NULL);
-	engine = req->ring;
+	engine = req->engine;
 	dev_priv = engine->dev->dev_private;
 
 	ret = i915_gem_check_wedge(&dev_priv->gpu_error,
@@ -2517,7 +2517,7 @@ int intel_ring_begin(struct drm_i915_gem_request *req,
 /* Align the ring tail to a cacheline boundary */
 int intel_ring_cacheline_align(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int num_dwords = (engine->buffer->tail & (CACHELINE_BYTES - 1)) / sizeof(uint32_t);
 	int ret;
 
@@ -2589,7 +2589,7 @@ static void gen6_bsd_ring_write_tail(struct intel_engine_cs *engine,
 static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req,
 			       u32 invalidate, u32 flush)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	uint32_t cmd;
 	int ret;
 
@@ -2636,7 +2636,7 @@ gen8_ring_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			      u64 offset, u32 len,
 			      unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	bool ppgtt = USES_PPGTT(engine->dev) &&
 			!(dispatch_flags & I915_DISPATCH_SECURE);
 	int ret;
@@ -2662,7 +2662,7 @@ hsw_ring_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			     u64 offset, u32 len,
 			     unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 2);
@@ -2687,7 +2687,7 @@ gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request *req,
 			      u64 offset, u32 len,
 			      unsigned dispatch_flags)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	ret = intel_ring_begin(req, 2);
@@ -2710,7 +2710,7 @@ gen6_ring_dispatch_execbuffer(struct drm_i915_gem_request *req,
 static int gen6_ring_flush(struct drm_i915_gem_request *req,
 			   u32 invalidate, u32 flush)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	struct drm_device *dev = engine->dev;
 	uint32_t cmd;
 	int ret;
@@ -2756,7 +2756,7 @@ static int gen6_ring_flush(struct drm_i915_gem_request *req,
 int intel_init_render_ring_buffer(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[RCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[RCS];
 	struct drm_i915_gem_object *obj;
 	int ret;
 
@@ -2907,7 +2907,7 @@ int intel_init_render_ring_buffer(struct drm_device *dev)
 int intel_init_bsd_ring_buffer(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[VCS];
 
 	engine->name = "bsd ring";
 	engine->id = VCS;
@@ -2984,7 +2984,7 @@ int intel_init_bsd_ring_buffer(struct drm_device *dev)
 int intel_init_bsd2_ring_buffer(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VCS2];
+	struct intel_engine_cs *engine = &dev_priv->engine[VCS2];
 
 	engine->name = "bsd2 ring";
 	engine->id = VCS2;
@@ -3015,7 +3015,7 @@ int intel_init_bsd2_ring_buffer(struct drm_device *dev)
 int intel_init_blt_ring_buffer(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[BCS];
+	struct intel_engine_cs *engine = &dev_priv->engine[BCS];
 
 	engine->name = "blitter ring";
 	engine->id = BCS;
@@ -3073,7 +3073,7 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
 int intel_init_vebox_ring_buffer(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct intel_engine_cs *engine = &dev_priv->ring[VECS];
+	struct intel_engine_cs *engine = &dev_priv->engine[VECS];
 
 	engine->name = "video enhancement ring";
 	engine->id = VECS;
@@ -3125,7 +3125,7 @@ int intel_init_vebox_ring_buffer(struct drm_device *dev)
 int
 intel_ring_flush_all_caches(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	int ret;
 
 	if (!engine->gpu_caches_dirty)
@@ -3144,7 +3144,7 @@ intel_ring_flush_all_caches(struct drm_i915_gem_request *req)
 int
 intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = req->ring;
+	struct intel_engine_cs *engine = req->engine;
 	uint32_t flush_domains;
 	int ret;
 

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -99,7 +99,7 @@ struct intel_ringbuffer {
 	void __iomem *virtual_start;
 	struct i915_vma *vma;
 
-	struct intel_engine_cs *ring;
+	struct intel_engine_cs *engine;
 	struct list_head link;
 
 	u32 head;