vmwgfx: Fix confusion caused by using "fence" in various places

This is needed before we introduce the fence objects.
Otherwise this will be even more confusing. The plan is to use the following:

seqno: A 32-bit sequence number that may be passed in the fifo.
marker: Objects, carrying a seqno, that track fifo submission time. They
are used for fifo lag based throttling.
fence objects: Kernel space objects, possibly accessible from user-space and
carrying a 32-bit seqno together with signaled status.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/vmwgfx/Makefile

@@ -4,6 +4,6 @@ ccflags-y := -Iinclude/drm
 vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_fb.o vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_buffer.o \
 	    vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
-	    vmwgfx_overlay.o vmwgfx_fence.o vmwgfx_gmrid_manager.o
+	    vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o
 
 obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o

drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c

@@ -295,18 +295,18 @@ static int vmw_sync_obj_flush(void *sync_obj, void *sync_arg)
 static bool vmw_sync_obj_signaled(void *sync_obj, void *sync_arg)
 {
 	struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
-	uint32_t sequence = (unsigned long) sync_obj;
+	uint32_t seqno = (unsigned long) sync_obj;
 
-	return vmw_fence_signaled(dev_priv, sequence);
+	return vmw_seqno_passed(dev_priv, seqno);
 }
 
 static int vmw_sync_obj_wait(void *sync_obj, void *sync_arg,
 			     bool lazy, bool interruptible)
 {
 	struct vmw_private *dev_priv = (struct vmw_private *)sync_arg;
-	uint32_t sequence = (unsigned long) sync_obj;
+	uint32_t seqno = (unsigned long) sync_obj;
 
-	return vmw_wait_fence(dev_priv, false, sequence, false, 3*HZ);
+	return vmw_wait_seqno(dev_priv, false, seqno, false, 3*HZ);
 }
 
 struct ttm_bo_driver vmw_bo_driver = {

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

@@ -280,7 +280,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 
 	dev_priv->dev = dev;
 	dev_priv->vmw_chipset = chipset;
-	dev_priv->last_read_sequence = (uint32_t) -100;
+	dev_priv->last_read_seqno = (uint32_t) -100;
 	mutex_init(&dev_priv->hw_mutex);
 	mutex_init(&dev_priv->cmdbuf_mutex);
 	mutex_init(&dev_priv->release_mutex);

drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

@@ -105,7 +105,7 @@ struct vmw_surface {
 	struct vmw_cursor_snooper snooper;
 };
 
-struct vmw_fence_queue {
+struct vmw_marker_queue {
 	struct list_head head;
 	struct timespec lag;
 	struct timespec lag_time;
@@ -121,7 +121,7 @@ struct vmw_fifo_state {
 	uint32_t capabilities;
 	struct mutex fifo_mutex;
 	struct rw_semaphore rwsem;
-	struct vmw_fence_queue fence_queue;
+	struct vmw_marker_queue marker_queue;
 };
 
 struct vmw_relocation {
@@ -238,12 +238,12 @@ struct vmw_private {
 	 * Fencing and IRQs.
 	 */
 
-	atomic_t fence_seq;
+	atomic_t marker_seq;
 	wait_queue_head_t fence_queue;
 	wait_queue_head_t fifo_queue;
 	atomic_t fence_queue_waiters;
 	atomic_t fifo_queue_waiters;
-	uint32_t last_read_sequence;
+	uint32_t last_read_seqno;
 	spinlock_t irq_lock;
 
 	/*
@@ -411,7 +411,7 @@ extern void vmw_fifo_release(struct vmw_private *dev_priv,
 extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes);
 extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes);
 extern int vmw_fifo_send_fence(struct vmw_private *dev_priv,
-			       uint32_t *sequence);
+			       uint32_t *seqno);
 extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason);
 extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv);
 extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv);
@@ -448,39 +448,39 @@ extern int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
  */
 
 extern irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS);
-extern int vmw_wait_fence(struct vmw_private *dev_priv, bool lazy,
-			  uint32_t sequence, bool interruptible,
-			  unsigned long timeout);
+extern int vmw_wait_seqno(struct vmw_private *dev_priv, bool lazy,
+			     uint32_t seqno, bool interruptible,
+			     unsigned long timeout);
 extern void vmw_irq_preinstall(struct drm_device *dev);
 extern int vmw_irq_postinstall(struct drm_device *dev);
 extern void vmw_irq_uninstall(struct drm_device *dev);
-extern bool vmw_fence_signaled(struct vmw_private *dev_priv,
-			       uint32_t sequence);
+extern bool vmw_seqno_passed(struct vmw_private *dev_priv,
+				uint32_t seqno);
 extern int vmw_fence_wait_ioctl(struct drm_device *dev, void *data,
 				struct drm_file *file_priv);
 extern int vmw_fallback_wait(struct vmw_private *dev_priv,
 			     bool lazy,
 			     bool fifo_idle,
-			     uint32_t sequence,
+			     uint32_t seqno,
 			     bool interruptible,
 			     unsigned long timeout);
-extern void vmw_update_sequence(struct vmw_private *dev_priv,
+extern void vmw_update_seqno(struct vmw_private *dev_priv,
 				struct vmw_fifo_state *fifo_state);
 
 
 /**
- * Rudimentary fence objects currently used only for throttling -
- * vmwgfx_fence.c
+ * Rudimentary fence-like objects currently used only for throttling -
+ * vmwgfx_marker.c
  */
 
-extern void vmw_fence_queue_init(struct vmw_fence_queue *queue);
-extern void vmw_fence_queue_takedown(struct vmw_fence_queue *queue);
-extern int vmw_fence_push(struct vmw_fence_queue *queue,
-			  uint32_t sequence);
-extern int vmw_fence_pull(struct vmw_fence_queue *queue,
-			  uint32_t signaled_sequence);
+extern void vmw_marker_queue_init(struct vmw_marker_queue *queue);
+extern void vmw_marker_queue_takedown(struct vmw_marker_queue *queue);
+extern int vmw_marker_push(struct vmw_marker_queue *queue,
+			  uint32_t seqno);
+extern int vmw_marker_pull(struct vmw_marker_queue *queue,
+			  uint32_t signaled_seqno);
 extern int vmw_wait_lag(struct vmw_private *dev_priv,
-			struct vmw_fence_queue *queue, uint32_t us);
+			struct vmw_marker_queue *queue, uint32_t us);
 
 /**
  * Kernel framebuffer - vmwgfx_fb.c

drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

@@ -686,7 +686,7 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 	int ret;
 	void *user_cmd;
 	void *cmd;
-	uint32_t sequence;
+	uint32_t seqno;
 	struct vmw_sw_context *sw_context = &dev_priv->ctx;
 	struct vmw_master *vmaster = vmw_master(file_priv->master);
 
@@ -738,7 +738,7 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 	vmw_apply_relocations(sw_context);
 
 	if (arg->throttle_us) {
-		ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.fence_queue,
+		ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.marker_queue,
 				   arg->throttle_us);
 
 		if (unlikely(ret != 0))
@@ -755,10 +755,10 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 	memcpy(cmd, sw_context->cmd_bounce, arg->command_size);
 	vmw_fifo_commit(dev_priv, arg->command_size);
 
-	ret = vmw_fifo_send_fence(dev_priv, &sequence);
+	ret = vmw_fifo_send_fence(dev_priv, &seqno);
 
 	ttm_eu_fence_buffer_objects(&sw_context->validate_nodes,
-				    (void *)(unsigned long) sequence);
+				    (void *)(unsigned long) seqno);
 	vmw_clear_validations(sw_context);
 	mutex_unlock(&dev_priv->cmdbuf_mutex);
 
@@ -771,7 +771,7 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
 		DRM_ERROR("Fence submission error. Syncing.\n");
 
 	fence_rep.error = ret;
-	fence_rep.fence_seq = (uint64_t) sequence;
+	fence_rep.fence_seq = (uint64_t) seqno;
 	fence_rep.pad64 = 0;
 
 	user_fence_rep = (struct drm_vmw_fence_rep __user *)

drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c

@@ -127,9 +127,9 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 		 (unsigned int) min,
 		 (unsigned int) fifo->capabilities);
 
-	atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence);
-	iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE);
-	vmw_fence_queue_init(&fifo->fence_queue);
+	atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno);
+	iowrite32(dev_priv->last_read_seqno, fifo_mem + SVGA_FIFO_FENCE);
+	vmw_marker_queue_init(&fifo->marker_queue);
 	return vmw_fifo_send_fence(dev_priv, &dummy);
 }
 
@@ -156,7 +156,7 @@ void vmw_fifo_release(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 	while (vmw_read(dev_priv, SVGA_REG_BUSY) != 0)
 		vmw_write(dev_priv, SVGA_REG_SYNC, SVGA_SYNC_GENERIC);
 
-	dev_priv->last_read_sequence = ioread32(fifo_mem + SVGA_FIFO_FENCE);
+	dev_priv->last_read_seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE);
 
 	vmw_write(dev_priv, SVGA_REG_CONFIG_DONE,
 		  dev_priv->config_done_state);
@@ -166,7 +166,7 @@ void vmw_fifo_release(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo)
 		  dev_priv->traces_state);
 
 	mutex_unlock(&dev_priv->hw_mutex);
-	vmw_fence_queue_takedown(&fifo->fence_queue);
+	vmw_marker_queue_takedown(&fifo->marker_queue);
 
 	if (likely(fifo->static_buffer != NULL)) {
 		vfree(fifo->static_buffer);
@@ -447,7 +447,7 @@ void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes)
 	mutex_unlock(&fifo_state->fifo_mutex);
 }
 
-int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *sequence)
+int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno)
 {
 	struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
 	struct svga_fifo_cmd_fence *cmd_fence;
@@ -457,16 +457,16 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *sequence)
 
 	fm = vmw_fifo_reserve(dev_priv, bytes);
 	if (unlikely(fm == NULL)) {
-		*sequence = atomic_read(&dev_priv->fence_seq);
+		*seqno = atomic_read(&dev_priv->marker_seq);
 		ret = -ENOMEM;
-		(void)vmw_fallback_wait(dev_priv, false, true, *sequence,
+		(void)vmw_fallback_wait(dev_priv, false, true, *seqno,
 					false, 3*HZ);
 		goto out_err;
 	}
 
 	do {
-		*sequence = atomic_add_return(1, &dev_priv->fence_seq);
-	} while (*sequence == 0);
+		*seqno = atomic_add_return(1, &dev_priv->marker_seq);
+	} while (*seqno == 0);
 
 	if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) {
 
@@ -483,10 +483,10 @@ int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *sequence)
 	cmd_fence = (struct svga_fifo_cmd_fence *)
 	    ((unsigned long)fm + sizeof(__le32));
 
-	iowrite32(*sequence, &cmd_fence->fence);
+	iowrite32(*seqno, &cmd_fence->fence);
 	vmw_fifo_commit(dev_priv, bytes);
-	(void) vmw_fence_push(&fifo_state->fence_queue, *sequence);
-	vmw_update_sequence(dev_priv, fifo_state);
+	(void) vmw_marker_push(&fifo_state->marker_queue, *seqno);
+	vmw_update_seqno(dev_priv, fifo_state);
 
 out_err:
 	return ret;

drivers/gpu/drm/vmwgfx/vmwgfx_irq.c

@@ -53,7 +53,7 @@ irqreturn_t vmw_irq_handler(DRM_IRQ_ARGS)
 	return IRQ_NONE;
 }
 
-static bool vmw_fifo_idle(struct vmw_private *dev_priv, uint32_t sequence)
+static bool vmw_fifo_idle(struct vmw_private *dev_priv, uint32_t seqno)
 {
 	uint32_t busy;
 
@@ -64,43 +64,43 @@ static bool vmw_fifo_idle(struct vmw_private *dev_priv, uint32_t sequence)
 	return (busy == 0);
 }
 
-void vmw_update_sequence(struct vmw_private *dev_priv,
+void vmw_update_seqno(struct vmw_private *dev_priv,
 			 struct vmw_fifo_state *fifo_state)
 {
 	__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
 
-	uint32_t sequence = ioread32(fifo_mem + SVGA_FIFO_FENCE);
+	uint32_t seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE);
 
-	if (dev_priv->last_read_sequence != sequence) {
-		dev_priv->last_read_sequence = sequence;
-		vmw_fence_pull(&fifo_state->fence_queue, sequence);
+	if (dev_priv->last_read_seqno != seqno) {
+		dev_priv->last_read_seqno = seqno;
+		vmw_marker_pull(&fifo_state->marker_queue, seqno);
 	}
 }
 
-bool vmw_fence_signaled(struct vmw_private *dev_priv,
-			uint32_t sequence)
+bool vmw_seqno_passed(struct vmw_private *dev_priv,
+			 uint32_t seqno)
 {
 	struct vmw_fifo_state *fifo_state;
 	bool ret;
 
-	if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+	if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
 		return true;
 
 	fifo_state = &dev_priv->fifo;
-	vmw_update_sequence(dev_priv, fifo_state);
-	if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+	vmw_update_seqno(dev_priv, fifo_state);
+	if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
 		return true;
 
 	if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE) &&
-	    vmw_fifo_idle(dev_priv, sequence))
+	    vmw_fifo_idle(dev_priv, seqno))
 		return true;
 
 	/**
-	 * Then check if the sequence is higher than what we've actually
+	 * Then check if the seqno is higher than what we've actually
 	 * emitted. Then the fence is stale and signaled.
 	 */
 
-	ret = ((atomic_read(&dev_priv->fence_seq) - sequence)
+	ret = ((atomic_read(&dev_priv->marker_seq) - seqno)
 	       > VMW_FENCE_WRAP);
 
 	return ret;
@@ -109,7 +109,7 @@ bool vmw_fence_signaled(struct vmw_private *dev_priv,
 int vmw_fallback_wait(struct vmw_private *dev_priv,
 		      bool lazy,
 		      bool fifo_idle,
-		      uint32_t sequence,
+		      uint32_t seqno,
 		      bool interruptible,
 		      unsigned long timeout)
 {
@@ -123,7 +123,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
 	DEFINE_WAIT(__wait);
 
 	wait_condition = (fifo_idle) ? &vmw_fifo_idle :
-		&vmw_fence_signaled;
+		&vmw_seqno_passed;
 
 	/**
 	 * Block command submission while waiting for idle.
@@ -131,14 +131,14 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
 
 	if (fifo_idle)
 		down_read(&fifo_state->rwsem);
-	signal_seq = atomic_read(&dev_priv->fence_seq);
+	signal_seq = atomic_read(&dev_priv->marker_seq);
 	ret = 0;
 
 	for (;;) {
 		prepare_to_wait(&dev_priv->fence_queue, &__wait,
 				(interruptible) ?
 				TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
-		if (wait_condition(dev_priv, sequence))
+		if (wait_condition(dev_priv, seqno))
 			break;
 		if (time_after_eq(jiffies, end_jiffies)) {
 			DRM_ERROR("SVGA device lockup.\n");
@@ -175,28 +175,28 @@ int vmw_fallback_wait(struct vmw_private *dev_priv,
 	return ret;
 }
 
-int vmw_wait_fence(struct vmw_private *dev_priv,
-		   bool lazy, uint32_t sequence,
-		   bool interruptible, unsigned long timeout)
+int vmw_wait_seqno(struct vmw_private *dev_priv,
+		      bool lazy, uint32_t seqno,
+		      bool interruptible, unsigned long timeout)
 {
 	long ret;
 	unsigned long irq_flags;
 	struct vmw_fifo_state *fifo = &dev_priv->fifo;
 
-	if (likely(dev_priv->last_read_sequence - sequence < VMW_FENCE_WRAP))
+	if (likely(dev_priv->last_read_seqno - seqno < VMW_FENCE_WRAP))
 		return 0;
 
-	if (likely(vmw_fence_signaled(dev_priv, sequence)))
+	if (likely(vmw_seqno_passed(dev_priv, seqno)))
 		return 0;
 
 	vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
 
 	if (!(fifo->capabilities & SVGA_FIFO_CAP_FENCE))
-		return vmw_fallback_wait(dev_priv, lazy, true, sequence,
+		return vmw_fallback_wait(dev_priv, lazy, true, seqno,
 					 interruptible, timeout);
 
 	if (!(dev_priv->capabilities & SVGA_CAP_IRQMASK))
-		return vmw_fallback_wait(dev_priv, lazy, false, sequence,
+		return vmw_fallback_wait(dev_priv, lazy, false, seqno,
 					 interruptible, timeout);
 
 	mutex_lock(&dev_priv->hw_mutex);
@@ -214,12 +214,12 @@ int vmw_wait_fence(struct vmw_private *dev_priv,
 	if (interruptible)
 		ret = wait_event_interruptible_timeout
 		    (dev_priv->fence_queue,
-		     vmw_fence_signaled(dev_priv, sequence),
+		     vmw_seqno_passed(dev_priv, seqno),
 		     timeout);
 	else
 		ret = wait_event_timeout
 		    (dev_priv->fence_queue,
-		     vmw_fence_signaled(dev_priv, sequence),
+		     vmw_seqno_passed(dev_priv, seqno),
 		     timeout);
 
 	if (unlikely(ret == 0))
@@ -293,5 +293,5 @@ int vmw_fence_wait_ioctl(struct drm_device *dev, void *data,
 		return -EBUSY;
 
 	timeout = (unsigned long)arg->kernel_cookie - timeout;
-	return vmw_wait_fence(vmw_priv(dev), true, arg->sequence, true, timeout);
+	return vmw_wait_seqno(vmw_priv(dev), true, arg->seqno, true, timeout);
 }

drivers/gpu/drm/vmwgfx/vmwgfx_fence.c → drivers/gpu/drm/vmwgfx/vmwgfx_marker.c

@@ -28,13 +28,13 @@
 
 #include "vmwgfx_drv.h"
 
-struct vmw_fence {
+struct vmw_marker {
 	struct list_head head;
-	uint32_t sequence;
+	uint32_t seqno;
 	struct timespec submitted;
 };
 
-void vmw_fence_queue_init(struct vmw_fence_queue *queue)
+void vmw_marker_queue_init(struct vmw_marker_queue *queue)
 {
 	INIT_LIST_HEAD(&queue->head);
 	queue->lag = ns_to_timespec(0);
@@ -42,38 +42,38 @@ void vmw_fence_queue_init(struct vmw_fence_queue *queue)
 	spin_lock_init(&queue->lock);
 }
 
-void vmw_fence_queue_takedown(struct vmw_fence_queue *queue)
+void vmw_marker_queue_takedown(struct vmw_marker_queue *queue)
 {
-	struct vmw_fence *fence, *next;
+	struct vmw_marker *marker, *next;
 
 	spin_lock(&queue->lock);
-	list_for_each_entry_safe(fence, next, &queue->head, head) {
-		kfree(fence);
+	list_for_each_entry_safe(marker, next, &queue->head, head) {
+		kfree(marker);
 	}
 	spin_unlock(&queue->lock);
 }
 
-int vmw_fence_push(struct vmw_fence_queue *queue,
-		   uint32_t sequence)
+int vmw_marker_push(struct vmw_marker_queue *queue,
+		   uint32_t seqno)
 {
-	struct vmw_fence *fence = kmalloc(sizeof(*fence), GFP_KERNEL);
+	struct vmw_marker *marker = kmalloc(sizeof(*marker), GFP_KERNEL);
 
-	if (unlikely(!fence))
+	if (unlikely(!marker))
 		return -ENOMEM;
 
-	fence->sequence = sequence;
-	getrawmonotonic(&fence->submitted);
+	marker->seqno = seqno;
+	getrawmonotonic(&marker->submitted);
 	spin_lock(&queue->lock);
-	list_add_tail(&fence->head, &queue->head);
+	list_add_tail(&marker->head, &queue->head);
 	spin_unlock(&queue->lock);
 
 	return 0;
 }
 
-int vmw_fence_pull(struct vmw_fence_queue *queue,
-		   uint32_t signaled_sequence)
+int vmw_marker_pull(struct vmw_marker_queue *queue,
+		   uint32_t signaled_seqno)
 {
-	struct vmw_fence *fence, *next;
+	struct vmw_marker *marker, *next;
 	struct timespec now;
 	bool updated = false;
 
@@ -87,15 +87,15 @@ int vmw_fence_pull(struct vmw_fence_queue *queue,
 		goto out_unlock;
 	}
 
-	list_for_each_entry_safe(fence, next, &queue->head, head) {
-		if (signaled_sequence - fence->sequence > (1 << 30))
+	list_for_each_entry_safe(marker, next, &queue->head, head) {
+		if (signaled_seqno - marker->seqno > (1 << 30))
 			continue;
 
-		queue->lag = timespec_sub(now, fence->submitted);
+		queue->lag = timespec_sub(now, marker->submitted);
 		queue->lag_time = now;
 		updated = true;
-		list_del(&fence->head);
-		kfree(fence);
+		list_del(&marker->head);
+		kfree(marker);
 	}
 
 out_unlock:
@@ -117,7 +117,7 @@ static struct timespec vmw_timespec_add(struct timespec t1,
 	return t1;
 }
 
-static struct timespec vmw_fifo_lag(struct vmw_fence_queue *queue)
+static struct timespec vmw_fifo_lag(struct vmw_marker_queue *queue)
 {
 	struct timespec now;
 
@@ -131,7 +131,7 @@ static struct timespec vmw_fifo_lag(struct vmw_fence_queue *queue)
 }
 
 
-static bool vmw_lag_lt(struct vmw_fence_queue *queue,
+static bool vmw_lag_lt(struct vmw_marker_queue *queue,
 		       uint32_t us)
 {
 	struct timespec lag, cond;
@@ -142,32 +142,30 @@ static bool vmw_lag_lt(struct vmw_fence_queue *queue,
 }
 
 int vmw_wait_lag(struct vmw_private *dev_priv,
-		 struct vmw_fence_queue *queue, uint32_t us)
+		 struct vmw_marker_queue *queue, uint32_t us)
 {
-	struct vmw_fence *fence;
-	uint32_t sequence;
+	struct vmw_marker *marker;
+	uint32_t seqno;
 	int ret;
 
 	while (!vmw_lag_lt(queue, us)) {
 		spin_lock(&queue->lock);
 		if (list_empty(&queue->head))
-			sequence = atomic_read(&dev_priv->fence_seq);
+			seqno = atomic_read(&dev_priv->marker_seq);
 		else {
-			fence = list_first_entry(&queue->head,
-						 struct vmw_fence, head);
-			sequence = fence->sequence;
+			marker = list_first_entry(&queue->head,
+						 struct vmw_marker, head);
+			seqno = marker->seqno;
 		}
 		spin_unlock(&queue->lock);
 
-		ret = vmw_wait_fence(dev_priv, false, sequence, true,
-				     3*HZ);
+		ret = vmw_wait_seqno(dev_priv, false, seqno, true,
+					3*HZ);
 
 		if (unlikely(ret != 0))
 			return ret;
 
-		(void) vmw_fence_pull(queue, sequence);
+		(void) vmw_marker_pull(queue, seqno);
 	}
 	return 0;
 }
-
-

include/drm/vmwgfx_drm.h

@@ -289,7 +289,7 @@ union drm_vmw_surface_reference_arg {
  * DRM_VMW_EXECBUF
  *
  * Submit a command buffer for execution on the host, and return a
- * fence sequence that when signaled, indicates that the command buffer has
+ * fence seqno that when signaled, indicates that the command buffer has
  * executed.
  */
 
@@ -325,7 +325,7 @@ struct drm_vmw_execbuf_arg {
 /**
  * struct drm_vmw_fence_rep
  *
- * @fence_seq: Fence sequence associated with a command submission.
+ * @fence_seq: Fence seqno associated with a command submission.
  * @error: This member should've been set to -EFAULT on submission.
  * The following actions should be take on completion:
  * error == -EFAULT: Fence communication failed. The host is synchronized.
@@ -432,7 +432,7 @@ struct drm_vmw_unref_dmabuf_arg {
 
 
 struct drm_vmw_fence_wait_arg {
-	uint64_t sequence;
+	uint64_t seqno;
 	uint64_t kernel_cookie;
 	int32_t cookie_valid;
 	int32_t pad64;