drm/i915: Move GEM client throttling to its own file

Continuing the decluttering of i915_gem.c by moving the client self
throttling into its own file.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-13-chris@chris-wilson.co.uk

1 files changed, 0 insertions, 58 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6af448736030..e5aafbeb1d19 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1012,57 +1012,6 @@ int i915_gem_wait_for_idle(struct drm_i915_private *i915,
 	return 0;
 }
 
-/* Throttle our rendering by waiting until the ring has completed our requests
- * emitted over 20 msec ago.
- *
- * Note that if we were to use the current jiffies each time around the loop,
- * we wouldn't escape the function with any frames outstanding if the time to
- * render a frame was over 20ms.
- *
- * This should get us reasonable parallelism between CPU and GPU but also
- * relatively low latency when blocking on a particular request to finish.
- */
-static int
-i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
-{
-	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct drm_i915_file_private *file_priv = file->driver_priv;
-	unsigned long recent_enough = jiffies - DRM_I915_THROTTLE_JIFFIES;
-	struct i915_request *request, *target = NULL;
-	long ret;
-
-	/* ABI: return -EIO if already wedged */
-	ret = i915_terminally_wedged(dev_priv);
-	if (ret)
-		return ret;
-
-	spin_lock(&file_priv->mm.lock);
-	list_for_each_entry(request, &file_priv->mm.request_list, client_link) {
-		if (time_after_eq(request->emitted_jiffies, recent_enough))
-			break;
-
-		if (target) {
-			list_del(&target->client_link);
-			target->file_priv = NULL;
-		}
-
-		target = request;
-	}
-	if (target)
-		i915_request_get(target);
-	spin_unlock(&file_priv->mm.lock);
-
-	if (target == NULL)
-		return 0;
-
-	ret = i915_request_wait(target,
-				I915_WAIT_INTERRUPTIBLE,
-				MAX_SCHEDULE_TIMEOUT);
-	i915_request_put(target);
-
-	return ret < 0 ? ret : 0;
-}
-
 struct i915_vma *
 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 			 const struct i915_ggtt_view *view,
@@ -1143,13 +1092,6 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 }
 
 int
-i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
-			struct drm_file *file_priv)
-{
-	return i915_gem_ring_throttle(dev, file_priv);
-}
-
-int
 i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv)
 {