[PATCH 4/5 v2] drm/i915: More intel_engine_cs renaming

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From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

Some trivial ones, first pass done with Coccinelle:

@@
@@
(
- I915_NUM_RINGS
+ I915_NUM_ENGINES
|
- intel_ring_flag
+ intel_engine_flag
|
- for_each_ring
+ for_each_engine
|
- i915_gem_request_get_ring
+ i915_gem_request_get_engine
|
- intel_ring_idle
+ intel_engine_idle
|
- i915_gem_reset_ring_status
+ i915_gem_reset_engine_status
|
- i915_gem_reset_ring_cleanup
+ i915_gem_reset_engine_cleanup
|
- init_ring_lists
+ init_engine_lists
)

But that didn't fully work so I cleaned it up with:

for f in *.[hc]; do sed -i -e s/I915_NUM_RINGS/I915_NUM_ENGINES/ $f; done
for f in *.[hc]; do sed -i -e s/i915_gem_request_get_ring/i915_gem_request_get_engine/ $f; done
for f in *.[hc]; do sed -i -e s/intel_ring_flag/intel_engine_flag/ $f; done
for f in *.[hc]; do sed -i -e s/intel_ring_idle/intel_engine_idle/ $f; done
for f in *.[hc]; do sed -i -e s/init_ring_lists/init_engine_lists/ $f; done
for f in *.[hc]; do sed -i -e s/i915_gem_reset_ring_cleanup/i915_gem_reset_engine_cleanup/ $f; done
for f in *.[hc]; do sed -i -e s/i915_gem_reset_ring_status/i915_gem_reset_engine_status/ $f; done

v2: Rebase.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_debugfs.c        | 52 ++++++++++-----------
 drivers/gpu/drm/i915/i915_drv.h            | 26 +++++------
 drivers/gpu/drm/i915/i915_gem.c            | 74 +++++++++++++++---------------
 drivers/gpu/drm/i915/i915_gem_context.c    | 16 +++----
 drivers/gpu/drm/i915/i915_gem_debug.c      |  2 +-
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |  4 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c        |  6 +--
 drivers/gpu/drm/i915/i915_gpu_error.c      | 12 ++---
 drivers/gpu/drm/i915/i915_guc_submission.c |  6 +--
 drivers/gpu/drm/i915/i915_irq.c            | 20 ++++----
 drivers/gpu/drm/i915/i915_trace.h          |  6 +--
 drivers/gpu/drm/i915/intel_display.c       |  4 +-
 drivers/gpu/drm/i915/intel_guc_loader.c    |  4 +-
 drivers/gpu/drm/i915/intel_lrc.c           | 12 ++---
 drivers/gpu/drm/i915/intel_mocs.c          |  2 +-
 drivers/gpu/drm/i915/intel_pm.c            | 12 ++---
 drivers/gpu/drm/i915/intel_ringbuffer.c    | 12 ++---
 drivers/gpu/drm/i915/intel_ringbuffer.h    | 20 ++++----
 drivers/gpu/drm/i915/intel_uncore.c        |  4 +-
 19 files changed, 147 insertions(+), 147 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index a71ffaaf380d..dabce8403d56 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -143,7 +143,7 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 		   obj->base.size / 1024,
 		   obj->base.read_domains,
 		   obj->base.write_domain);
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		seq_printf(m, "%x ",
 				i915_gem_request_get_seqno(obj->last_read_req[i]));
 	seq_printf(m, "] %x %x%s%s%s",
@@ -184,7 +184,7 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj)
 	}
 	if (obj->last_write_req != NULL)
 		seq_printf(m, " (%s)",
-			   i915_gem_request_get_ring(obj->last_write_req)->name);
+			   i915_gem_request_get_engine(obj->last_write_req)->name);
 	if (obj->frontbuffer_bits)
 		seq_printf(m, " (frontbuffer: 0x%03x)", obj->frontbuffer_bits);
 }
@@ -402,7 +402,7 @@ static void print_batch_pool_stats(struct seq_file *m,
 
 	memset(&stats, 0, sizeof(stats));
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
 			list_for_each_entry(obj,
 					    &engine->batch_pool.cache_list[j],
@@ -591,7 +591,7 @@ static int i915_gem_pageflip_info(struct seq_file *m, void *data)
 					   pipe, plane);
 			}
 			if (work->flip_queued_req) {
-				struct intel_engine_cs *engine = i915_gem_request_get_ring(work->flip_queued_req);
+				struct intel_engine_cs *engine = i915_gem_request_get_engine(work->flip_queued_req);
 
 				seq_printf(m, "Flip queued on %s at seqno %x, next seqno %x [current breadcrumb %x], completed? %d\n",
 					   engine->name,
@@ -644,7 +644,7 @@ static int i915_gem_batch_pool_info(struct seq_file *m, void *data)
 	if (ret)
 		return ret;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		for (j = 0; j < ARRAY_SIZE(engine->batch_pool.cache_list); j++) {
 			int count;
 
@@ -689,7 +689,7 @@ static int i915_gem_request_info(struct seq_file *m, void *data)
 		return ret;
 
 	any = 0;
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		int count;
 
 		count = 0;
@@ -746,7 +746,7 @@ static int i915_gem_seqno_info(struct seq_file *m, void *data)
 		return ret;
 	intel_runtime_pm_get(dev_priv);
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		i915_ring_seqno_info(m, engine);
 
 	intel_runtime_pm_put(dev_priv);
@@ -933,7 +933,7 @@ static int i915_interrupt_info(struct seq_file *m, void *data)
 		seq_printf(m, "Graphics Interrupt mask:		%08x\n",
 			   I915_READ(GTIMR));
 	}
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		if (INTEL_INFO(dev)->gen >= 6) {
 			seq_printf(m,
 				   "Graphics Interrupt mask (%s):	%08x\n",
@@ -1331,8 +1331,8 @@ static int i915_hangcheck_info(struct seq_file *m, void *unused)
 	struct drm_device *dev = node->minor->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *engine;
-	u64 acthd[I915_NUM_RINGS];
-	u32 seqno[I915_NUM_RINGS];
+	u64 acthd[I915_NUM_ENGINES];
+	u32 seqno[I915_NUM_ENGINES];
 	u32 instdone[I915_NUM_INSTDONE_REG];
 	int i, j;
 
@@ -1343,7 +1343,7 @@ static int i915_hangcheck_info(struct seq_file *m, void *unused)
 
 	intel_runtime_pm_get(dev_priv);
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		seqno[i] = engine->get_seqno(engine, false);
 		acthd[i] = intel_ring_get_active_head(engine);
 	}
@@ -1359,7 +1359,7 @@ static int i915_hangcheck_info(struct seq_file *m, void *unused)
 	} else
 		seq_printf(m, "Hangcheck inactive\n");
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		seq_printf(m, "%s:\n", engine->name);
 		seq_printf(m, "\tseqno = %x [current %x]\n",
 			   engine->hangcheck.seqno, seqno[i]);
@@ -1965,7 +1965,7 @@ static int i915_context_status(struct seq_file *m, void *unused)
 
 		if (i915.enable_execlists) {
 			seq_putc(m, '\n');
-			for_each_ring(engine, dev_priv, i) {
+			for_each_engine(engine, dev_priv, i) {
 				struct drm_i915_gem_object *ctx_obj =
 					ctx->engine[i].state;
 				struct intel_ringbuffer *ringbuf =
@@ -2055,7 +2055,7 @@ static int i915_dump_lrc(struct seq_file *m, void *unused)
 
 	list_for_each_entry(ctx, &dev_priv->context_list, link)
 		if (ctx != dev_priv->kernel_context)
-			for_each_ring(engine, dev_priv, i)
+			for_each_engine(engine, dev_priv, i)
 				i915_dump_lrc_obj(m, ctx, engine);
 
 	mutex_unlock(&dev->struct_mutex);
@@ -2089,7 +2089,7 @@ static int i915_execlists(struct seq_file *m, void *data)
 
 	intel_runtime_pm_get(dev_priv);
 
-	for_each_ring(engine, dev_priv, ring_id) {
+	for_each_engine(engine, dev_priv, ring_id) {
 		struct drm_i915_gem_request *head_req = NULL;
 		int count = 0;
 		unsigned long flags;
@@ -2253,7 +2253,7 @@ static void gen8_ppgtt_info(struct seq_file *m, struct drm_device *dev)
 	if (!ppgtt)
 		return;
 
-	for_each_ring(engine, dev_priv, unused) {
+	for_each_engine(engine, dev_priv, unused) {
 		seq_printf(m, "%s\n", engine->name);
 		for (i = 0; i < 4; i++) {
 			u64 pdp = I915_READ(GEN8_RING_PDP_UDW(engine, i));
@@ -2273,7 +2273,7 @@ static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
 	if (INTEL_INFO(dev)->gen == 6)
 		seq_printf(m, "GFX_MODE: 0x%08x\n", I915_READ(GFX_MODE));
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		seq_printf(m, "%s\n", engine->name);
 		if (INTEL_INFO(dev)->gen == 7)
 			seq_printf(m, "GFX_MODE: 0x%08x\n",
@@ -2342,7 +2342,7 @@ static int count_irq_waiters(struct drm_i915_private *i915)
 	int count = 0;
 	int i;
 
-	for_each_ring(engine, i915, i)
+	for_each_engine(engine, i915, i)
 		count += engine->irq_refcount;
 
 	return count;
@@ -2466,7 +2466,7 @@ static void i915_guc_client_info(struct seq_file *m,
 	seq_printf(m, "\tFailed doorbell: %u\n", client->b_fail);
 	seq_printf(m, "\tLast submission result: %d\n", client->retcode);
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		seq_printf(m, "\tSubmissions: %llu %s\n",
 				client->submissions[engine->guc_id],
 				engine->name);
@@ -2506,7 +2506,7 @@ static int i915_guc_info(struct seq_file *m, void *data)
 	seq_printf(m, "GuC last action error code: %d\n", guc.action_err);
 
 	seq_printf(m, "\nGuC submissions:\n");
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		seq_printf(m, "\t%-24s: %10llu, last seqno 0x%08x\n",
 			engine->name, guc.submissions[engine->guc_id],
 			guc.last_seqno[engine->guc_id]);
@@ -3153,14 +3153,14 @@ static int i915_semaphore_status(struct seq_file *m, void *unused)
 		page = i915_gem_object_get_page(dev_priv->semaphore_obj, 0);
 
 		seqno = (uint64_t *)kmap_atomic(page);
-		for_each_ring(engine, dev_priv, i) {
+		for_each_engine(engine, dev_priv, i) {
 			uint64_t offset;
 
 			seq_printf(m, "%s\n", engine->name);
 
 			seq_puts(m, "  Last signal:");
 			for (j = 0; j < num_rings; j++) {
-				offset = i * I915_NUM_RINGS + j;
+				offset = i * I915_NUM_ENGINES + j;
 				seq_printf(m, "0x%08llx (0x%02llx) ",
 					   seqno[offset], offset * 8);
 			}
@@ -3168,7 +3168,7 @@ static int i915_semaphore_status(struct seq_file *m, void *unused)
 
 			seq_puts(m, "  Last wait:  ");
 			for (j = 0; j < num_rings; j++) {
-				offset = i + (j * I915_NUM_RINGS);
+				offset = i + (j * I915_NUM_ENGINES);
 				seq_printf(m, "0x%08llx (0x%02llx) ",
 					   seqno[offset], offset * 8);
 			}
@@ -3178,7 +3178,7 @@ static int i915_semaphore_status(struct seq_file *m, void *unused)
 		kunmap_atomic(seqno);
 	} else {
 		seq_puts(m, "  Last signal:");
-		for_each_ring(engine, dev_priv, i)
+		for_each_engine(engine, dev_priv, i)
 			for (j = 0; j < num_rings; j++)
 				seq_printf(m, "0x%08x\n",
 					   I915_READ(engine->semaphore.mbox.signal[j]));
@@ -3186,7 +3186,7 @@ static int i915_semaphore_status(struct seq_file *m, void *unused)
 	}
 
 	seq_puts(m, "\nSync seqno:\n");
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		for (j = 0; j < num_rings; j++) {
 			seq_printf(m, "  0x%08x ",
 				   engine->semaphore.sync_seqno[j]);
@@ -3244,7 +3244,7 @@ static int i915_wa_registers(struct seq_file *m, void *unused)
 	intel_runtime_pm_get(dev_priv);
 
 	seq_printf(m, "Workarounds applied: %d\n", workarounds->count);
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		seq_printf(m, "HW whitelist count for %s: %d\n",
 			   engine->name, workarounds->hw_whitelist_count[i]);
 	for (i = 0; i < workarounds->count; ++i) {
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8fd5a7aad566..e8427b40e847 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -533,7 +533,7 @@ struct drm_i915_error_state {
 		u32 cpu_ring_head;
 		u32 cpu_ring_tail;
 
-		u32 semaphore_seqno[I915_NUM_RINGS - 1];
+		u32 semaphore_seqno[I915_NUM_ENGINES - 1];
 
 		/* Register state */
 		u32 start;
@@ -553,7 +553,7 @@ struct drm_i915_error_state {
 		u32 fault_reg;
 		u64 faddr;
 		u32 rc_psmi; /* sleep state */
-		u32 semaphore_mboxes[I915_NUM_RINGS - 1];
+		u32 semaphore_mboxes[I915_NUM_ENGINES - 1];
 
 		struct drm_i915_error_object {
 			int page_count;
@@ -579,12 +579,12 @@ struct drm_i915_error_state {
 
 		pid_t pid;
 		char comm[TASK_COMM_LEN];
-	} ring[I915_NUM_RINGS];
+	} ring[I915_NUM_ENGINES];
 
 	struct drm_i915_error_buffer {
 		u32 size;
 		u32 name;
-		u32 rseqno[I915_NUM_RINGS], wseqno;
+		u32 rseqno[I915_NUM_ENGINES], wseqno;
 		u64 gtt_offset;
 		u32 read_domains;
 		u32 write_domain;
@@ -898,7 +898,7 @@ struct intel_context {
 		struct i915_vma *lrc_vma;
 		u64 lrc_desc;
 		uint32_t *lrc_reg_state;
-	} engine[I915_NUM_RINGS];
+	} engine[I915_NUM_ENGINES];
 
 	struct list_head link;
 };
@@ -1713,7 +1713,7 @@ struct i915_wa_reg {
 struct i915_workarounds {
 	struct i915_wa_reg reg[I915_MAX_WA_REGS];
 	u32 count;
-	u32 hw_whitelist_count[I915_NUM_RINGS];
+	u32 hw_whitelist_count[I915_NUM_ENGINES];
 };
 
 struct i915_virtual_gpu {
@@ -1778,7 +1778,7 @@ struct drm_i915_private {
 	wait_queue_head_t gmbus_wait_queue;
 
 	struct pci_dev *bridge_dev;
-	struct intel_engine_cs engine[I915_NUM_RINGS];
+	struct intel_engine_cs engine[I915_NUM_ENGINES];
 	struct drm_i915_gem_object *semaphore_obj;
 	uint32_t last_seqno, next_seqno;
 
@@ -2040,8 +2040,8 @@ 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__)++) \
+#define for_each_engine(ring__, dev_priv__, i__) \
+	for ((i__) = 0; (i__) < I915_NUM_ENGINES; (i__)++) \
 		for_each_if ((((ring__) = &(dev_priv__)->engine[(i__)]), intel_ring_initialized((ring__))))
 
 enum hdmi_force_audio {
@@ -2112,7 +2112,7 @@ struct drm_i915_gem_object {
 	struct drm_mm_node *stolen;
 	struct list_head global_list;
 
-	struct list_head ring_list[I915_NUM_RINGS];
+	struct list_head ring_list[I915_NUM_ENGINES];
 	/** Used in execbuf to temporarily hold a ref */
 	struct list_head obj_exec_link;
 
@@ -2123,7 +2123,7 @@ struct drm_i915_gem_object {
 	 * rendering and so a non-zero seqno), and is not set if it i s on
 	 * inactive (ready to be unbound) list.
 	 */
-	unsigned int active:I915_NUM_RINGS;
+	unsigned int active:I915_NUM_ENGINES;
 
 	/**
 	 * This is set if the object has been written to since last bound
@@ -2202,7 +2202,7 @@ struct drm_i915_gem_object {
 	 * read request. This allows for the CPU to read from an active
 	 * buffer by only waiting for the write to complete.
 	 * */
-	struct drm_i915_gem_request *last_read_req[I915_NUM_RINGS];
+	struct drm_i915_gem_request *last_read_req[I915_NUM_ENGINES];
 	struct drm_i915_gem_request *last_write_req;
 	/** Breadcrumb of last fenced GPU access to the buffer. */
 	struct drm_i915_gem_request *last_fenced_req;
@@ -2350,7 +2350,7 @@ 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)
+i915_gem_request_get_engine(struct drm_i915_gem_request *req)
 {
 	return req ? req->engine : NULL;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index cd68a86437f1..0ae193f9bcbe 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1243,11 +1243,11 @@ int __i915_wait_request(struct drm_i915_gem_request *req,
 			s64 *timeout,
 			struct intel_rps_client *rps)
 {
-	struct intel_engine_cs *engine = i915_gem_request_get_ring(req);
+	struct intel_engine_cs *engine = i915_gem_request_get_engine(req);
 	struct drm_device *dev = engine->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	const bool irq_test_in_progress =
-		ACCESS_ONCE(dev_priv->gpu_error.test_irq_rings) & intel_ring_flag(engine);
+		ACCESS_ONCE(dev_priv->gpu_error.test_irq_rings) & intel_engine_flag(engine);
 	int state = interruptible ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE;
 	DEFINE_WAIT(wait);
 	unsigned long timeout_expire;
@@ -1512,7 +1512,7 @@ i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
 				i915_gem_object_retire__write(obj);
 		}
 	} else {
-		for (i = 0; i < I915_NUM_RINGS; i++) {
+		for (i = 0; i < I915_NUM_ENGINES; i++) {
 			if (obj->last_read_req[i] == NULL)
 				continue;
 
@@ -1552,7 +1552,7 @@ i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj,
 {
 	struct drm_device *dev = obj->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_i915_gem_request *requests[I915_NUM_RINGS];
+	struct drm_i915_gem_request *requests[I915_NUM_ENGINES];
 	unsigned reset_counter;
 	int ret, i, n = 0;
 
@@ -1577,7 +1577,7 @@ i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj,
 
 		requests[n++] = i915_gem_request_reference(req);
 	} else {
-		for (i = 0; i < I915_NUM_RINGS; i++) {
+		for (i = 0; i < I915_NUM_ENGINES; i++) {
 			struct drm_i915_gem_request *req;
 
 			req = obj->last_read_req[i];
@@ -2406,12 +2406,12 @@ void i915_vma_move_to_active(struct i915_vma *vma,
 	struct drm_i915_gem_object *obj = vma->obj;
 	struct intel_engine_cs *engine;
 
-	engine = i915_gem_request_get_ring(req);
+	engine = i915_gem_request_get_engine(req);
 
 	/* Add a reference if we're newly entering the active list. */
 	if (obj->active == 0)
 		drm_gem_object_reference(&obj->base);
-	obj->active |= intel_ring_flag(engine);
+	obj->active |= intel_engine_flag(engine);
 
 	list_move_tail(&obj->ring_list[engine->id], &engine->active_list);
 	i915_gem_request_assign(&obj->last_read_req[engine->id], req);
@@ -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->engine)));
+	RQ_BUG_ON(!(obj->active & intel_engine_flag(obj->last_write_req->engine)));
 
 	i915_gem_request_assign(&obj->last_write_req, NULL);
 	intel_fb_obj_flush(obj, true, ORIGIN_CS);
@@ -2471,15 +2471,15 @@ i915_gem_init_seqno(struct drm_device *dev, u32 seqno)
 	int ret, i, j;
 
 	/* Carefully retire all requests without writing to the rings */
-	for_each_ring(engine, dev_priv, i) {
-		ret = intel_ring_idle(engine);
+	for_each_engine(engine, dev_priv, i) {
+		ret = intel_engine_idle(engine);
 		if (ret)
 			return ret;
 	}
 	i915_gem_retire_requests(dev);
 
 	/* Finally reset hw state */
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		intel_ring_init_seqno(engine, seqno);
 
 		for (j = 0; j < ARRAY_SIZE(engine->semaphore.sync_seqno); j++)
@@ -2801,7 +2801,7 @@ i915_gem_find_active_request(struct intel_engine_cs *engine)
 	return NULL;
 }
 
-static void i915_gem_reset_ring_status(struct drm_i915_private *dev_priv,
+static void i915_gem_reset_engine_status(struct drm_i915_private *dev_priv,
 				       struct intel_engine_cs *engine)
 {
 	struct drm_i915_gem_request *request;
@@ -2820,7 +2820,7 @@ static void i915_gem_reset_ring_status(struct drm_i915_private *dev_priv,
 		i915_set_reset_status(dev_priv, request->ctx, false);
 }
 
-static void i915_gem_reset_ring_cleanup(struct drm_i915_private *dev_priv,
+static void i915_gem_reset_engine_cleanup(struct drm_i915_private *dev_priv,
 					struct intel_engine_cs *engine)
 {
 	struct intel_ringbuffer *buffer;
@@ -2893,11 +2893,11 @@ void i915_gem_reset(struct drm_device *dev)
 	 * them for finding the guilty party. As the requests only borrow
 	 * their reference to the objects, the inspection must be done first.
 	 */
-	for_each_ring(engine, dev_priv, i)
-		i915_gem_reset_ring_status(dev_priv, engine);
+	for_each_engine(engine, dev_priv, i)
+		i915_gem_reset_engine_status(dev_priv, engine);
 
-	for_each_ring(engine, dev_priv, i)
-		i915_gem_reset_ring_cleanup(dev_priv, engine);
+	for_each_engine(engine, dev_priv, i)
+		i915_gem_reset_engine_cleanup(dev_priv, engine);
 
 	i915_gem_context_reset(dev);
 
@@ -2966,7 +2966,7 @@ i915_gem_retire_requests(struct drm_device *dev)
 	bool idle = true;
 	int i;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		i915_gem_retire_requests_ring(engine);
 		idle &= list_empty(&engine->request_list);
 		if (i915.enable_execlists) {
@@ -3014,7 +3014,7 @@ i915_gem_idle_work_handler(struct work_struct *work)
 	struct intel_engine_cs *ring;
 	int i;
 
-	for_each_ring(ring, dev_priv, i)
+	for_each_engine(ring, dev_priv, i)
 		if (!list_empty(&ring->request_list))
 			return;
 
@@ -3028,7 +3028,7 @@ i915_gem_idle_work_handler(struct work_struct *work)
 		struct intel_engine_cs *engine;
 		int i;
 
-		for_each_ring(engine, dev_priv, i)
+		for_each_engine(engine, dev_priv, i)
 			i915_gem_batch_pool_fini(&engine->batch_pool);
 
 		mutex_unlock(&dev->struct_mutex);
@@ -3048,7 +3048,7 @@ i915_gem_object_flush_active(struct drm_i915_gem_object *obj)
 	if (!obj->active)
 		return 0;
 
-	for (i = 0; i < I915_NUM_RINGS; i++) {
+	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		struct drm_i915_gem_request *req;
 
 		req = obj->last_read_req[i];
@@ -3096,7 +3096,7 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_i915_gem_wait *args = data;
 	struct drm_i915_gem_object *obj;
-	struct drm_i915_gem_request *req[I915_NUM_RINGS];
+	struct drm_i915_gem_request *req[I915_NUM_ENGINES];
 	unsigned reset_counter;
 	int i, n = 0;
 	int ret;
@@ -3133,7 +3133,7 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
 	drm_gem_object_unreference(&obj->base);
 	reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
 
-	for (i = 0; i < I915_NUM_RINGS; i++) {
+	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		if (obj->last_read_req[i] == NULL)
 			continue;
 
@@ -3166,7 +3166,7 @@ __i915_gem_object_sync(struct drm_i915_gem_object *obj,
 	struct intel_engine_cs *from;
 	int ret;
 
-	from = i915_gem_request_get_ring(from_req);
+	from = i915_gem_request_get_engine(from_req);
 	if (to == from)
 		return 0;
 
@@ -3260,7 +3260,7 @@ i915_gem_object_sync(struct drm_i915_gem_object *obj,
 		     struct drm_i915_gem_request **to_req)
 {
 	const bool readonly = obj->base.pending_write_domain == 0;
-	struct drm_i915_gem_request *req[I915_NUM_RINGS];
+	struct drm_i915_gem_request *req[I915_NUM_ENGINES];
 	int ret, i, n;
 
 	if (!obj->active)
@@ -3274,7 +3274,7 @@ i915_gem_object_sync(struct drm_i915_gem_object *obj,
 		if (obj->last_write_req)
 			req[n++] = obj->last_write_req;
 	} else {
-		for (i = 0; i < I915_NUM_RINGS; i++)
+		for (i = 0; i < I915_NUM_ENGINES; i++)
 			if (obj->last_read_req[i])
 				req[n++] = obj->last_read_req[i];
 	}
@@ -3395,7 +3395,7 @@ int i915_gpu_idle(struct drm_device *dev)
 	int ret, i;
 
 	/* Flush everything onto the inactive list. */
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		if (!i915.enable_execlists) {
 			struct drm_i915_gem_request *req;
 
@@ -3412,7 +3412,7 @@ int i915_gpu_idle(struct drm_device *dev)
 			i915_add_request_no_flush(req);
 		}
 
-		ret = intel_ring_idle(engine);
+		ret = intel_engine_idle(engine);
 		if (ret)
 			return ret;
 	}
@@ -4359,7 +4359,7 @@ i915_gem_busy_ioctl(struct drm_device *dev, void *data,
 	if (obj->active) {
 		int i;
 
-		for (i = 0; i < I915_NUM_RINGS; i++) {
+		for (i = 0; i < I915_NUM_ENGINES; i++) {
 			struct drm_i915_gem_request *req;
 
 			req = obj->last_read_req[i];
@@ -4447,7 +4447,7 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj,
 	int i;
 
 	INIT_LIST_HEAD(&obj->global_list);
-	for (i = 0; i < I915_NUM_RINGS; i++)
+	for (i = 0; i < I915_NUM_ENGINES; i++)
 		INIT_LIST_HEAD(&obj->ring_list[i]);
 	INIT_LIST_HEAD(&obj->obj_exec_link);
 	INIT_LIST_HEAD(&obj->vma_list);
@@ -4659,7 +4659,7 @@ i915_gem_stop_ringbuffers(struct drm_device *dev)
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		dev_priv->gt.stop_ring(engine);
 }
 
@@ -4876,7 +4876,7 @@ i915_gem_init_hw(struct drm_device *dev)
 	}
 
 	/* Need to do basic initialisation of all rings first: */
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		ret = engine->init_hw(engine);
 		if (ret)
 			goto out;
@@ -4901,7 +4901,7 @@ i915_gem_init_hw(struct drm_device *dev)
 		goto out;
 
 	/* Now it is safe to go back round and do everything else: */
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		struct drm_i915_gem_request *req;
 
 		req = i915_gem_request_alloc(engine, NULL);
@@ -5009,7 +5009,7 @@ i915_gem_cleanup_ringbuffer(struct drm_device *dev)
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		dev_priv->gt.cleanup_ring(engine);
 
     if (i915.enable_execlists)
@@ -5022,7 +5022,7 @@ i915_gem_cleanup_ringbuffer(struct drm_device *dev)
 }
 
 static void
-init_ring_lists(struct intel_engine_cs *engine)
+init_engine_lists(struct intel_engine_cs *engine)
 {
 	INIT_LIST_HEAD(&engine->active_list);
 	INIT_LIST_HEAD(&engine->request_list);
@@ -5055,8 +5055,8 @@ i915_gem_load_init(struct drm_device *dev)
 	INIT_LIST_HEAD(&dev_priv->mm.unbound_list);
 	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->engine[i]);
+	for (i = 0; i < I915_NUM_ENGINES; i++)
+		init_engine_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,
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 6c325e4c7556..1993449ab7c5 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -345,7 +345,7 @@ void i915_gem_context_reset(struct drm_device *dev)
 			intel_lr_context_reset(dev, ctx);
 	}
 
-	for (i = 0; i < I915_NUM_RINGS; i++) {
+	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		struct intel_engine_cs *engine = &dev_priv->engine[i];
 
 		if (engine->last_context) {
@@ -426,7 +426,7 @@ void i915_gem_context_fini(struct drm_device *dev)
 		i915_gem_object_ggtt_unpin(dctx->legacy_hw_ctx.rcs_state);
 	}
 
-	for (i = I915_NUM_RINGS; --i >= 0;) {
+	for (i = I915_NUM_ENGINES; --i >= 0;) {
 		struct intel_engine_cs *engine = &dev_priv->engine[i];
 
 		if (engine->last_context) {
@@ -553,7 +553,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 
 			intel_ring_emit(engine,
 					MI_LOAD_REGISTER_IMM(num_rings));
-			for_each_ring(signaller, to_i915(engine->dev), i) {
+			for_each_engine(signaller, to_i915(engine->dev), i) {
 				if (signaller == engine)
 					continue;
 
@@ -582,7 +582,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 
 			intel_ring_emit(engine,
 					MI_LOAD_REGISTER_IMM(num_rings));
-			for_each_ring(signaller, to_i915(engine->dev), i) {
+			for_each_engine(signaller, to_i915(engine->dev), i) {
 				if (signaller == engine)
 					continue;
 
@@ -608,7 +608,7 @@ static inline bool should_skip_switch(struct intel_engine_cs *engine,
 		return false;
 
 	if (to->ppgtt && from == to &&
-	    !(intel_ring_flag(engine) & to->ppgtt->pd_dirty_rings))
+	    !(intel_engine_flag(engine) & to->ppgtt->pd_dirty_rings))
 		return true;
 
 	return false;
@@ -697,7 +697,7 @@ static int do_switch(struct drm_i915_gem_request *req)
 			goto unpin_out;
 
 		/* Doing a PD load always reloads the page dirs */
-		to->ppgtt->pd_dirty_rings &= ~intel_ring_flag(engine);
+		to->ppgtt->pd_dirty_rings &= ~intel_engine_flag(engine);
 	}
 
 	if (engine != &dev_priv->engine[RCS]) {
@@ -725,9 +725,9 @@ static int do_switch(struct drm_i915_gem_request *req)
 		 * space. This means we must enforce that a page table load
 		 * occur when this occurs. */
 	} else if (to->ppgtt &&
-		   (intel_ring_flag(engine) & to->ppgtt->pd_dirty_rings)) {
+		   (intel_engine_flag(engine) & to->ppgtt->pd_dirty_rings)) {
 		hw_flags |= MI_FORCE_RESTORE;
-		to->ppgtt->pd_dirty_rings &= ~intel_ring_flag(engine);
+		to->ppgtt->pd_dirty_rings &= ~intel_engine_flag(engine);
 	}
 
 	/* We should never emit switch_mm more than once */
diff --git a/drivers/gpu/drm/i915/i915_gem_debug.c b/drivers/gpu/drm/i915/i915_gem_debug.c
index 202a7e6ae295..e0bca7d5b0d6 100644
--- a/drivers/gpu/drm/i915/i915_gem_debug.c
+++ b/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -43,7 +43,7 @@ i915_verify_lists(struct drm_device *dev)
 	if (warned)
 		return 0;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		list_for_each_entry(obj, &engine->active_list,
 				    ring_list[engine->id]) {
 			if (obj->base.dev != dev ||
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index bb1ed8c4bcb4..c0545db85a8c 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/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->engine);
+	const unsigned other_rings = ~intel_engine_flag(req->engine);
 	struct i915_vma *vma;
 	uint32_t flush_domains = 0;
 	bool flush_chipset = false;
@@ -1099,7 +1099,7 @@ void
 i915_gem_execbuffer_move_to_active(struct list_head *vmas,
 				   struct drm_i915_gem_request *req)
 {
-	struct intel_engine_cs *engine = i915_gem_request_get_ring(req);
+	struct intel_engine_cs *engine = i915_gem_request_get_engine(req);
 	struct i915_vma *vma;
 
 	list_for_each_entry(vma, vmas, exec_list) {
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index ab54396029ca..9c752fe0f730 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1739,7 +1739,7 @@ static void gen8_ppgtt_enable(struct drm_device *dev)
 	struct intel_engine_cs *engine;
 	int j;
 
-	for_each_ring(engine, dev_priv, j) {
+	for_each_engine(engine, dev_priv, j) {
 		u32 four_level = USES_FULL_48BIT_PPGTT(dev) ? GEN8_GFX_PPGTT_48B : 0;
 		I915_WRITE(RING_MODE_GEN7(engine),
 			   _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE | four_level));
@@ -1765,7 +1765,7 @@ static void gen7_ppgtt_enable(struct drm_device *dev)
 	}
 	I915_WRITE(GAM_ECOCHK, ecochk);
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		/* GFX_MODE is per-ring on gen7+ */
 		I915_WRITE(RING_MODE_GEN7(engine),
 			   _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
@@ -2292,7 +2292,7 @@ void i915_check_and_clear_faults(struct drm_device *dev)
 	if (INTEL_INFO(dev)->gen < 6)
 		return;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		u32 fault_reg;
 		fault_reg = I915_READ(RING_FAULT_REG(engine));
 		if (fault_reg & RING_FAULT_VALID) {
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index a73f7057e875..34397a67b09e 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -198,7 +198,7 @@ static void print_error_buffers(struct drm_i915_error_state_buf *m,
 			   err->size,
 			   err->read_domains,
 			   err->write_domain);
-		for (i = 0; i < I915_NUM_RINGS; i++)
+		for (i = 0; i < I915_NUM_ENGINES; i++)
 			err_printf(m, "%02x ", err->rseqno[i]);
 
 		err_printf(m, "] %02x", err->wseqno);
@@ -732,7 +732,7 @@ static void capture_bo(struct drm_i915_error_buffer *err,
 
 	err->size = obj->base.size;
 	err->name = obj->base.name;
-	for (i = 0; i < I915_NUM_RINGS; i++)
+	for (i = 0; i < I915_NUM_ENGINES; i++)
 		err->rseqno[i] = i915_gem_request_get_seqno(obj->last_read_req[i]);
 	err->wseqno = i915_gem_request_get_seqno(obj->last_write_req);
 	err->gtt_offset = vma->node.start;
@@ -747,7 +747,7 @@ static void capture_bo(struct drm_i915_error_buffer *err,
 	err->purgeable = obj->madv != I915_MADV_WILLNEED;
 	err->userptr = obj->userptr.mm != NULL;
 	err->ring = obj->last_write_req ?
-			i915_gem_request_get_ring(obj->last_write_req)->id : -1;
+			i915_gem_request_get_engine(obj->last_write_req)->id : -1;
 	err->cache_level = obj->cache_level;
 }
 
@@ -809,7 +809,7 @@ static uint32_t i915_error_generate_code(struct drm_i915_private *dev_priv,
 	 * synchronization commands which almost always appear in the case
 	 * strictly a client bug. Use instdone to differentiate those some.
 	 */
-	for (i = 0; i < I915_NUM_RINGS; i++) {
+	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		if (error->ring[i].hangcheck_action == HANGCHECK_HUNG) {
 			if (ring_id)
 				*ring_id = i;
@@ -856,7 +856,7 @@ static void gen8_record_semaphore_state(struct drm_i915_private *dev_priv,
 			i915_error_ggtt_object_create(dev_priv,
 						      dev_priv->semaphore_obj);
 
-	for_each_ring(to, dev_priv, i) {
+	for_each_engine(to, dev_priv, i) {
 		int idx;
 		u16 signal_offset;
 		u32 *tmp;
@@ -1019,7 +1019,7 @@ static void i915_gem_record_rings(struct drm_device *dev,
 	struct drm_i915_gem_request *request;
 	int i, count;
 
-	for (i = 0; i < I915_NUM_RINGS; i++) {
+	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		struct intel_engine_cs *engine = &dev_priv->engine[i];
 		struct intel_ringbuffer *rbuf;
 
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index ed4f0762b263..ae1f58d073f2 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -390,7 +390,7 @@ static void guc_init_ctx_desc(struct intel_guc *guc,
 	desc.priority = client->priority;
 	desc.db_id = client->doorbell_id;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		struct guc_execlist_context *lrc = &desc.lrc[engine->guc_id];
 		struct drm_i915_gem_object *obj;
 		uint64_t ctx_desc;
@@ -871,7 +871,7 @@ static void guc_create_ads(struct intel_guc *guc)
 	engine = &dev_priv->engine[RCS];
 	ads->golden_context_lrca = engine->status_page.gfx_addr;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		ads->eng_state_size[engine->guc_id] = intel_lr_context_size(engine);
 
 	/* GuC scheduling policies */
@@ -884,7 +884,7 @@ static void guc_create_ads(struct intel_guc *guc)
 	/* MMIO reg state */
 	reg_state = (void *)policies + sizeof(struct guc_policies);
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		reg_state->mmio_white_list[engine->guc_id].mmio_start =
 			engine->mmio_base + GUC_MMIO_WHITE_LIST_START;
 
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6b7bee59e0c7..63ed77fe6bc4 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1082,7 +1082,7 @@ static bool any_waiters(struct drm_i915_private *dev_priv)
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		if (engine->irq_refcount)
 			return true;
 
@@ -2460,7 +2460,7 @@ static void i915_error_wake_up(struct drm_i915_private *dev_priv,
 	 */
 
 	/* Wake up __wait_seqno, potentially holding dev->struct_mutex. */
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		wake_up_all(&engine->irq_queue);
 
 	/* Wake up intel_crtc_wait_for_pending_flips, holding crtc->mutex. */
@@ -2832,7 +2832,7 @@ semaphore_wait_to_signaller_ring(struct intel_engine_cs *engine, u32 ipehr,
 	int i;
 
 	if (INTEL_INFO(dev_priv->dev)->gen >= 8) {
-		for_each_ring(signaller, dev_priv, i) {
+		for_each_engine(signaller, dev_priv, i) {
 			if (engine == signaller)
 				continue;
 
@@ -2842,7 +2842,7 @@ semaphore_wait_to_signaller_ring(struct intel_engine_cs *engine, u32 ipehr,
 	} else {
 		u32 sync_bits = ipehr & MI_SEMAPHORE_SYNC_MASK;
 
-		for_each_ring(signaller, dev_priv, i) {
+		for_each_engine(signaller, dev_priv, i) {
 			if(engine == signaller)
 				continue;
 
@@ -2941,7 +2941,7 @@ static int semaphore_passed(struct intel_engine_cs *engine)
 		return -1;
 
 	/* Prevent pathological recursion due to driver bugs */
-	if (signaller->hangcheck.deadlock >= I915_NUM_RINGS)
+	if (signaller->hangcheck.deadlock >= I915_NUM_ENGINES)
 		return -1;
 
 	if (i915_seqno_passed(signaller->get_seqno(signaller, false), seqno))
@@ -2960,7 +2960,7 @@ static void semaphore_clear_deadlocks(struct drm_i915_private *dev_priv)
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		engine->hangcheck.deadlock = 0;
 }
 
@@ -3075,7 +3075,7 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
 	struct intel_engine_cs *engine;
 	int i;
 	int busy_count = 0, rings_hung = 0;
-	bool stuck[I915_NUM_RINGS] = { 0 };
+	bool stuck[I915_NUM_ENGINES] = { 0 };
 #define BUSY 1
 #define KICK 5
 #define HUNG 20
@@ -3097,7 +3097,7 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
 	 */
 	intel_uncore_arm_unclaimed_mmio_detection(dev_priv);
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		u64 acthd;
 		u32 seqno;
 		bool busy = true;
@@ -3114,7 +3114,7 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
 				if (waitqueue_active(&engine->irq_queue)) {
 					/* Issue a wake-up to catch stuck h/w. */
 					if (!test_and_set_bit(engine->id, &dev_priv->gpu_error.missed_irq_rings)) {
-						if (!(dev_priv->gpu_error.test_irq_rings & intel_ring_flag(engine)))
+						if (!(dev_priv->gpu_error.test_irq_rings & intel_engine_flag(engine)))
 							DRM_ERROR("Hangcheck timer elapsed... %s idle\n",
 								  engine->name);
 						else
@@ -3184,7 +3184,7 @@ static void i915_hangcheck_elapsed(struct work_struct *work)
 		busy_count += busy;
 	}
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		if (engine->hangcheck.score >= HANGCHECK_SCORE_RING_HUNG) {
 			DRM_INFO("%s on %s\n",
 				 stuck[i] ? "stuck" : "no progress",
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 923cf6e4d8b6..afdd8aefb5b7 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -487,7 +487,7 @@ TRACE_EVENT(i915_gem_ring_dispatch,
 
 	    TP_fast_assign(
 			   struct intel_engine_cs *engine =
-						i915_gem_request_get_ring(req);
+						i915_gem_request_get_engine(req);
 			   __entry->dev = engine->dev->primary->index;
 			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
@@ -534,7 +534,7 @@ DECLARE_EVENT_CLASS(i915_gem_request,
 
 	    TP_fast_assign(
 			   struct intel_engine_cs *engine =
-						i915_gem_request_get_ring(req);
+						i915_gem_request_get_engine(req);
 			   __entry->dev = engine->dev->primary->index;
 			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
@@ -598,7 +598,7 @@ TRACE_EVENT(i915_gem_request_wait_begin,
 	     */
 	    TP_fast_assign(
 			   struct intel_engine_cs *engine =
-						i915_gem_request_get_ring(req);
+						i915_gem_request_get_engine(req);
 			   __entry->dev = engine->dev->primary->index;
 			   __entry->ring = engine->id;
 			   __entry->seqno = i915_gem_request_get_seqno(req);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 685bffe35427..758ca0ccb710 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11422,7 +11422,7 @@ static bool use_mmio_flip(struct intel_engine_cs *engine,
 						       false))
 		return true;
 	else
-		return engine != i915_gem_request_get_ring(obj->last_write_req);
+		return engine != i915_gem_request_get_engine(obj->last_write_req);
 }
 
 static void skl_do_mmio_flip(struct intel_crtc *intel_crtc,
@@ -11762,7 +11762,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	} else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) {
 		engine = &dev_priv->engine[BCS];
 	} else if (INTEL_INFO(dev)->gen >= 7) {
-		engine = i915_gem_request_get_ring(obj->last_write_req);
+		engine = i915_gem_request_get_engine(obj->last_write_req);
 		if (engine == NULL || engine->id != RCS)
 			engine = &dev_priv->engine[BCS];
 	} else {
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index fc2c5188b095..9f309211939a 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -87,7 +87,7 @@ static void direct_interrupts_to_host(struct drm_i915_private *dev_priv)
 	/* tell all command streamers NOT to forward interrupts and vblank to GuC */
 	irqs = _MASKED_FIELD(GFX_FORWARD_VBLANK_MASK, GFX_FORWARD_VBLANK_NEVER);
 	irqs |= _MASKED_BIT_DISABLE(GFX_INTERRUPT_STEERING);
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		I915_WRITE(RING_MODE_GEN7(engine), irqs);
 
 	/* route all GT interrupts to the host */
@@ -104,7 +104,7 @@ static void direct_interrupts_to_guc(struct drm_i915_private *dev_priv)
 	/* tell all command streamers to forward interrupts and vblank to GuC */
 	irqs = _MASKED_FIELD(GFX_FORWARD_VBLANK_MASK, GFX_FORWARD_VBLANK_ALWAYS);
 	irqs |= _MASKED_BIT_ENABLE(GFX_INTERRUPT_STEERING);
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		I915_WRITE(RING_MODE_GEN7(engine), irqs);
 
 	/* route USER_INTERRUPT to Host, all others are sent to GuC. */
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index bbcc31f4b15d..f2cf0e168141 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -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->engine);
+	const unsigned other_rings = ~intel_engine_flag(req->engine);
 	struct i915_vma *vma;
 	uint32_t flush_domains = 0;
 	bool flush_chipset = false;
@@ -1057,7 +1057,7 @@ void intel_logical_ring_stop(struct intel_engine_cs *engine)
 	if (!intel_ring_initialized(engine))
 		return;
 
-	ret = intel_ring_idle(engine);
+	ret = intel_engine_idle(engine);
 	if (ret && !i915_reset_in_progress(&to_i915(engine->dev)->gpu_error))
 		DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n",
 			  engine->name, 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->engine) & req->ctx->ppgtt->pd_dirty_rings)) {
+	    (intel_engine_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->engine);
+		req->ctx->ppgtt->pd_dirty_rings &= ~intel_engine_flag(req->engine);
 	}
 
 	ret = intel_logical_ring_begin(req, 4);
@@ -2511,7 +2511,7 @@ void intel_lr_context_free(struct intel_context *ctx)
 {
 	int i;
 
-	for (i = I915_NUM_RINGS; --i >= 0; ) {
+	for (i = I915_NUM_ENGINES; --i >= 0; ) {
 		struct intel_ringbuffer *ringbuf = ctx->engine[i].ringbuf;
 		struct drm_i915_gem_object *ctx_obj = ctx->engine[i].state;
 
@@ -2674,7 +2674,7 @@ void intel_lr_context_reset(struct drm_device *dev,
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i) {
+	for_each_engine(engine, dev_priv, i) {
 		struct drm_i915_gem_object *ctx_obj =
 				ctx->engine[engine->id].state;
 		struct intel_ringbuffer *ringbuf =
diff --git a/drivers/gpu/drm/i915/intel_mocs.c b/drivers/gpu/drm/i915/intel_mocs.c
index 2c895637ab50..6e936c7e382a 100644
--- a/drivers/gpu/drm/i915/intel_mocs.c
+++ b/drivers/gpu/drm/i915/intel_mocs.c
@@ -328,7 +328,7 @@ int intel_rcs_context_init_mocs(struct drm_i915_gem_request *req)
 		enum intel_ring_id ring_id;
 
 		/* Program the control registers */
-		for_each_ring(engine, dev_priv, ring_id) {
+		for_each_engine(engine, dev_priv, ring_id) {
 			ret = emit_mocs_control_table(req, &t, ring_id);
 			if (ret)
 				return ret;
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e51c28487696..20c8243ef705 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4838,7 +4838,7 @@ static void gen9_enable_rc6(struct drm_device *dev)
 		I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 54 << 16);
 	I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); /* 12500 * 1280ns */
 	I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); /* 25 * 1280ns */
-	for_each_ring(engine, dev_priv, unused)
+	for_each_engine(engine, dev_priv, unused)
 		I915_WRITE(RING_MAX_IDLE(engine->mmio_base), 10);
 
 	if (HAS_GUC_UCODE(dev))
@@ -4906,7 +4906,7 @@ static void gen8_enable_rps(struct drm_device *dev)
 	I915_WRITE(GEN6_RC6_WAKE_RATE_LIMIT, 40 << 16);
 	I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); /* 12500 * 1280ns */
 	I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); /* 25 * 1280ns */
-	for_each_ring(engine, dev_priv, unused)
+	for_each_engine(engine, dev_priv, unused)
 		I915_WRITE(RING_MAX_IDLE(engine->mmio_base), 10);
 	I915_WRITE(GEN6_RC_SLEEP, 0);
 	if (IS_BROADWELL(dev))
@@ -5003,7 +5003,7 @@ static void gen6_enable_rps(struct drm_device *dev)
 	I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000);
 	I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25);
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		I915_WRITE(RING_MAX_IDLE(engine->mmio_base), 10);
 
 	I915_WRITE(GEN6_RC_SLEEP, 0);
@@ -5522,7 +5522,7 @@ static void cherryview_enable_rps(struct drm_device *dev)
 	I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000); /* 12500 * 1280ns */
 	I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); /* 25 * 1280ns */
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		I915_WRITE(RING_MAX_IDLE(engine->mmio_base), 10);
 	I915_WRITE(GEN6_RC_SLEEP, 0);
 
@@ -5633,7 +5633,7 @@ static void valleyview_enable_rps(struct drm_device *dev)
 	I915_WRITE(GEN6_RC_EVALUATION_INTERVAL, 125000);
 	I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25);
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		I915_WRITE(RING_MAX_IDLE(engine->mmio_base), 10);
 
 	I915_WRITE(GEN6_RC6_THRESHOLD, 0x557);
@@ -6019,7 +6019,7 @@ bool i915_gpu_busy(void)
 		goto out_unlock;
 	dev_priv = i915_mch_dev;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		ret |= !list_empty(&engine->request_list);
 
 out_unlock:
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 7075b93a8fc9..f7493c5bff07 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -62,7 +62,7 @@ int intel_ring_space(struct intel_ringbuffer *ringbuf)
 bool intel_ring_stopped(struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *dev_priv = engine->dev->dev_private;
-	return dev_priv->gpu_error.stop_rings & intel_ring_flag(engine);
+	return dev_priv->gpu_error.stop_rings & intel_engine_flag(engine);
 }
 
 static void __intel_ring_advance(struct intel_engine_cs *engine)
@@ -1283,7 +1283,7 @@ static int gen8_rcs_signal(struct drm_i915_gem_request *signaller_req,
 	if (ret)
 		return ret;
 
-	for_each_ring(waiter, dev_priv, i) {
+	for_each_engine(waiter, dev_priv, i) {
 		u32 seqno;
 		u64 gtt_offset = signaller->semaphore.signal_ggtt[i];
 		if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID)
@@ -1324,7 +1324,7 @@ static int gen8_xcs_signal(struct drm_i915_gem_request *signaller_req,
 	if (ret)
 		return ret;
 
-	for_each_ring(waiter, dev_priv, i) {
+	for_each_engine(waiter, dev_priv, i) {
 		u32 seqno;
 		u64 gtt_offset = signaller->semaphore.signal_ggtt[i];
 		if (gtt_offset == MI_SEMAPHORE_SYNC_INVALID)
@@ -1363,7 +1363,7 @@ static int gen6_signal(struct drm_i915_gem_request *signaller_req,
 	if (ret)
 		return ret;
 
-	for_each_ring(useless, dev_priv, i) {
+	for_each_engine(useless, dev_priv, i) {
 		i915_reg_t mbox_reg = signaller->semaphore.mbox.signal[i];
 
 		if (i915_mmio_reg_valid(mbox_reg)) {
@@ -2356,7 +2356,7 @@ static void __wrap_ring_buffer(struct intel_ringbuffer *ringbuf)
 	intel_ring_update_space(ringbuf);
 }
 
-int intel_ring_idle(struct intel_engine_cs *engine)
+int intel_engine_idle(struct intel_engine_cs *engine)
 {
 	struct drm_i915_gem_request *req;
 
@@ -3170,7 +3170,7 @@ intel_stop_ring_buffer(struct intel_engine_cs *engine)
 	if (!intel_ring_initialized(engine))
 		return;
 
-	ret = intel_ring_idle(engine);
+	ret = intel_engine_idle(engine);
 	if (ret && !i915_reset_in_progress(&to_i915(engine->dev)->gpu_error))
 		DRM_ERROR("failed to quiesce %s whilst cleaning up: %d\n",
 			  engine->name, ret);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 4b0114e3c467..ee4d9a8ddc04 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -55,12 +55,12 @@ struct  intel_hw_status_page {
 #define i915_semaphore_seqno_size sizeof(uint64_t)
 #define GEN8_SIGNAL_OFFSET(__ring, to)			     \
 	(i915_gem_obj_ggtt_offset(dev_priv->semaphore_obj) + \
-	((__ring)->id * I915_NUM_RINGS * i915_semaphore_seqno_size) +	\
+	((__ring)->id * I915_NUM_ENGINES * i915_semaphore_seqno_size) +	\
 	(i915_semaphore_seqno_size * (to)))
 
 #define GEN8_WAIT_OFFSET(__ring, from)			     \
 	(i915_gem_obj_ggtt_offset(dev_priv->semaphore_obj) + \
-	((from) * I915_NUM_RINGS * i915_semaphore_seqno_size) + \
+	((from) * I915_NUM_ENGINES * i915_semaphore_seqno_size) + \
 	(i915_semaphore_seqno_size * (__ring)->id))
 
 #define GEN8_RING_SEMAPHORE_INIT(e) do { \
@@ -153,7 +153,7 @@ struct  intel_engine_cs {
 		VCS2,	/* Keep instances of the same type engine together. */
 		VECS
 	} id;
-#define I915_NUM_RINGS 5
+#define I915_NUM_ENGINES 5
 #define _VCS(n) (VCS + (n))
 	unsigned int exec_id;
 	unsigned int guc_id;
@@ -244,16 +244,16 @@ struct  intel_engine_cs {
 	 *  ie. transpose of f(x, y)
 	 */
 	struct {
-		u32	sync_seqno[I915_NUM_RINGS-1];
+		u32	sync_seqno[I915_NUM_ENGINES-1];
 
 		union {
 			struct {
 				/* our mbox written by others */
-				u32		wait[I915_NUM_RINGS];
+				u32		wait[I915_NUM_ENGINES];
 				/* mboxes this ring signals to */
-				i915_reg_t	signal[I915_NUM_RINGS];
+				i915_reg_t	signal[I915_NUM_ENGINES];
 			} mbox;
-			u64		signal_ggtt[I915_NUM_RINGS];
+			u64		signal_ggtt[I915_NUM_ENGINES];
 		};
 
 		/* AKA wait() */
@@ -361,7 +361,7 @@ intel_ring_initialized(struct intel_engine_cs *engine)
 }
 
 static inline unsigned
-intel_ring_flag(struct intel_engine_cs *engine)
+intel_engine_flag(struct intel_engine_cs *engine)
 {
 	return 1 << engine->id;
 }
@@ -382,7 +382,7 @@ intel_ring_sync_index(struct intel_engine_cs *engine,
 
 	idx = (other - engine) - 1;
 	if (idx < 0)
-		idx += I915_NUM_RINGS;
+		idx += I915_NUM_ENGINES;
 
 	return idx;
 }
@@ -467,7 +467,7 @@ void intel_ring_update_space(struct intel_ringbuffer *ringbuf);
 int intel_ring_space(struct intel_ringbuffer *ringbuf);
 bool intel_ring_stopped(struct intel_engine_cs *engine);
 
-int __must_check intel_ring_idle(struct intel_engine_cs *engine);
+int __must_check intel_engine_idle(struct intel_engine_cs *engine);
 void intel_ring_init_seqno(struct intel_engine_cs *engine, u32 seqno);
 int intel_ring_flush_all_caches(struct drm_i915_gem_request *req);
 int intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req);
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index d31447f6fa32..02add02e0ce4 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1573,14 +1573,14 @@ static int gen8_do_reset(struct drm_device *dev)
 	struct intel_engine_cs *engine;
 	int i;
 
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		if (gen8_request_engine_reset(engine))
 			goto not_ready;
 
 	return gen6_do_reset(dev);
 
 not_ready:
-	for_each_ring(engine, dev_priv, i)
+	for_each_engine(engine, dev_priv, i)
 		gen8_unrequest_engine_reset(engine);
 
 	return -EIO;
-- 
1.9.1

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