drm/i915: s/\<rq\>/req/g

The merged seqno->request conversion from John called request
variables req, but some (not all) of Chris' recent patches changed
those to just rq. We've had a lenghty (and inconclusive) discussion on
irc which is the more meaningful name with maybe at most a slight bias
towards req.

Given that the "don't change names without good reason to avoid
conflicts" rule applies, so lets go back to a req everywhere for
consistency. I'll sed any patches for which this will cause conflicts
before applying.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Harrison <John.C.Harrison@Intel.com>
[danvet: s/origina/merged/ as pointed out by Chris - the first
mass-conversion patch was from Chris, the merged one from John.]
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

drivers/gpu/drm/i915/i915_debugfs.c

@@ -665,7 +665,7 @@ static int i915_gem_request_info(struct seq_file *m, void *data)
 	struct drm_device *dev = node->minor->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_engine_cs *ring;
-	struct drm_i915_gem_request *rq;
+	struct drm_i915_gem_request *req;
 	int ret, any, i;
 
 	ret = mutex_lock_interruptible(&dev->struct_mutex);
@@ -677,22 +677,22 @@ static int i915_gem_request_info(struct seq_file *m, void *data)
 		int count;
 
 		count = 0;
-		list_for_each_entry(rq, &ring->request_list, list)
+		list_for_each_entry(req, &ring->request_list, list)
 			count++;
 		if (count == 0)
 			continue;
 
 		seq_printf(m, "%s requests: %d\n", ring->name, count);
-		list_for_each_entry(rq, &ring->request_list, list) {
+		list_for_each_entry(req, &ring->request_list, list) {
 			struct task_struct *task;
 
 			rcu_read_lock();
 			task = NULL;
-			if (rq->pid)
-				task = pid_task(rq->pid, PIDTYPE_PID);
+			if (req->pid)
+				task = pid_task(req->pid, PIDTYPE_PID);
 			seq_printf(m, "    %x @ %d: %s [%d]\n",
-				   rq->seqno,
-				   (int) (jiffies - rq->emitted_jiffies),
+				   req->seqno,
+				   (int) (jiffies - req->emitted_jiffies),
 				   task ? task->comm : "<unknown>",
 				   task ? task->pid : -1);
 			rcu_read_unlock();

drivers/gpu/drm/i915/i915_gem.c

@@ -1178,16 +1178,16 @@ static bool missed_irq(struct drm_i915_private *dev_priv,
 	return test_bit(ring->id, &dev_priv->gpu_error.missed_irq_rings);
 }
 
-static int __i915_spin_request(struct drm_i915_gem_request *rq)
+static int __i915_spin_request(struct drm_i915_gem_request *req)
 {
 	unsigned long timeout;
 
-	if (i915_gem_request_get_ring(rq)->irq_refcount)
+	if (i915_gem_request_get_ring(req)->irq_refcount)
 		return -EBUSY;
 
 	timeout = jiffies + 1;
 	while (!need_resched()) {
-		if (i915_gem_request_completed(rq, true))
+		if (i915_gem_request_completed(req, true))
 			return 0;
 
 		if (time_after_eq(jiffies, timeout))
@@ -1195,7 +1195,7 @@ static int __i915_spin_request(struct drm_i915_gem_request *rq)
 
 		cpu_relax_lowlatency();
 	}
-	if (i915_gem_request_completed(rq, false))
+	if (i915_gem_request_completed(req, false))
 		return 0;
 
 	return -EAGAIN;
@@ -2572,37 +2572,37 @@ int i915_gem_request_alloc(struct intel_engine_cs *ring,
 			   struct intel_context *ctx)
 {
 	struct drm_i915_private *dev_priv = to_i915(ring->dev);
-	struct drm_i915_gem_request *rq;
+	struct drm_i915_gem_request *req;
 	int ret;
 
 	if (ring->outstanding_lazy_request)
 		return 0;
 
-	rq = kmem_cache_zalloc(dev_priv->requests, GFP_KERNEL);
-	if (rq == NULL)
+	req = kmem_cache_zalloc(dev_priv->requests, GFP_KERNEL);
+	if (req == NULL)
 		return -ENOMEM;
 
-	kref_init(&rq->ref);
-	rq->i915 = dev_priv;
+	kref_init(&req->ref);
+	req->i915 = dev_priv;
 
-	ret = i915_gem_get_seqno(ring->dev, &rq->seqno);
+	ret = i915_gem_get_seqno(ring->dev, &req->seqno);
 	if (ret) {
-		kfree(rq);
+		kfree(req);
 		return ret;
 	}
 
-	rq->ring = ring;
+	req->ring = ring;
 
 	if (i915.enable_execlists)
-		ret = intel_logical_ring_alloc_request_extras(rq, ctx);
+		ret = intel_logical_ring_alloc_request_extras(req, ctx);
 	else
-		ret = intel_ring_alloc_request_extras(rq);
+		ret = intel_ring_alloc_request_extras(req);
 	if (ret) {
-		kfree(rq);
+		kfree(req);
 		return ret;
 	}
 
-	ring->outstanding_lazy_request = rq;
+	ring->outstanding_lazy_request = req;
 	return 0;
 }
 

drivers/gpu/drm/i915/intel_display.c

@@ -10785,14 +10785,14 @@ static void intel_mmio_flip_work_func(struct work_struct *work)
 	struct intel_mmio_flip *mmio_flip =
 		container_of(work, struct intel_mmio_flip, work);
 
-	if (mmio_flip->rq)
-		WARN_ON(__i915_wait_request(mmio_flip->rq,
+	if (mmio_flip->req)
+		WARN_ON(__i915_wait_request(mmio_flip->req,
 					    mmio_flip->crtc->reset_counter,
 					    false, NULL, NULL));
 
 	intel_do_mmio_flip(mmio_flip->crtc);
 
-	i915_gem_request_unreference__unlocked(mmio_flip->rq);
+	i915_gem_request_unreference__unlocked(mmio_flip->req);
 	kfree(mmio_flip);
 }
 
@@ -10809,7 +10809,7 @@ static int intel_queue_mmio_flip(struct drm_device *dev,
 	if (mmio_flip == NULL)
 		return -ENOMEM;
 
-	mmio_flip->rq = i915_gem_request_reference(obj->last_write_req);
+	mmio_flip->req = i915_gem_request_reference(obj->last_write_req);
 	mmio_flip->crtc = to_intel_crtc(crtc);
 
 	INIT_WORK(&mmio_flip->work, intel_mmio_flip_work_func);

drivers/gpu/drm/i915/intel_drv.h

@@ -460,7 +460,7 @@ struct intel_pipe_wm {
 
 struct intel_mmio_flip {
 	struct work_struct work;
-	struct drm_i915_gem_request *rq;
+	struct drm_i915_gem_request *req;
 	struct intel_crtc *crtc;
 };
 
@@ -1366,7 +1366,7 @@ void gen6_rps_idle(struct drm_i915_private *dev_priv);
 void gen6_rps_boost(struct drm_i915_private *dev_priv,
 		    struct drm_i915_file_private *file_priv);
 void intel_queue_rps_boost_for_request(struct drm_device *dev,
-				       struct drm_i915_gem_request *rq);
+				       struct drm_i915_gem_request *req);
 void ilk_wm_get_hw_state(struct drm_device *dev);
 void skl_wm_get_hw_state(struct drm_device *dev);
 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,

drivers/gpu/drm/i915/intel_pm.c

@@ -6842,34 +6842,34 @@ int intel_freq_opcode(struct drm_i915_private *dev_priv, int val)
 
 struct request_boost {
 	struct work_struct work;
-	struct drm_i915_gem_request *rq;
+	struct drm_i915_gem_request *req;
 };
 
 static void __intel_rps_boost_work(struct work_struct *work)
 {
 	struct request_boost *boost = container_of(work, struct request_boost, work);
 
-	if (!i915_gem_request_completed(boost->rq, true))
-		gen6_rps_boost(to_i915(boost->rq->ring->dev), NULL);
+	if (!i915_gem_request_completed(boost->req, true))
+		gen6_rps_boost(to_i915(boost->req->ring->dev), NULL);
 
-	i915_gem_request_unreference__unlocked(boost->rq);
+	i915_gem_request_unreference__unlocked(boost->req);
 	kfree(boost);
 }
 
 void intel_queue_rps_boost_for_request(struct drm_device *dev,
-				       struct drm_i915_gem_request *rq)
+				       struct drm_i915_gem_request *req)
 {
 	struct request_boost *boost;
 
-	if (rq == NULL || INTEL_INFO(dev)->gen < 6)
+	if (req == NULL || INTEL_INFO(dev)->gen < 6)
 		return;
 
 	boost = kmalloc(sizeof(*boost), GFP_ATOMIC);
 	if (boost == NULL)
 		return;
 
-	i915_gem_request_reference(rq);
-	boost->rq = rq;
+	i915_gem_request_reference(req);
+	boost->req = req;
 
 	INIT_WORK(&boost->work, __intel_rps_boost_work);
 	queue_work(to_i915(dev)->wq, &boost->work);