linux-next: manual merge of the akpm tree with the drm-intel tree

[Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>]

Hi Andrew,

Today's linux-next merge of the akpm tree got a conflict in
drivers/gpu/drm/i915/i915_gem.c between commit a70a3148b0c6 ("drm/i915:
Make proper functions for VMs") from the drm-intel tree and commit
e6950216e0af ("drivers: convert shrinkers to new count/scan API") from
the akpm tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

diff --cc drivers/gpu/drm/i915/i915_gem.c
index d31e15d,49db617..0000000
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@@ -4642,10 -4626,10 +4650,9 @@@ i915_gem_inactive_count(struct shrinke
  			     struct drm_i915_private,
  			     mm.inactive_shrinker);
  	struct drm_device *dev = dev_priv->dev;
 -	struct i915_address_space *vm = &dev_priv->gtt.base;
  	struct drm_i915_gem_object *obj;
- 	int nr_to_scan = sc->nr_to_scan;
  	bool unlock = true;
- 	int cnt;
+ 	long cnt;
  
  	if (!mutex_trylock(&dev->struct_mutex)) {
  		if (!mutex_is_locked_by(&dev->struct_mutex, current))
@@@ -4683,75 -4653,36 +4681,109 @@@
  		mutex_unlock(&dev->struct_mutex);
  	return cnt;
  }
 +
+ static long
+ i915_gem_inactive_scan(struct shrinker *shrinker, struct shrink_control *sc)
+ {
+ 	struct drm_i915_private *dev_priv =
+ 		container_of(shrinker,
+ 			     struct drm_i915_private,
+ 			     mm.inactive_shrinker);
+ 	struct drm_device *dev = dev_priv->dev;
+ 	int nr_to_scan = sc->nr_to_scan;
+ 	long freed;
+ 	bool unlock = true;
+ 
+ 	if (!mutex_trylock(&dev->struct_mutex)) {
+ 		if (!mutex_is_locked_by(&dev->struct_mutex, current))
+ 			return 0;
+ 
+ 		if (dev_priv->mm.shrinker_no_lock_stealing)
+ 			return 0;
+ 
+ 		unlock = false;
+ 	}
+ 
+ 	freed = i915_gem_purge(dev_priv, nr_to_scan);
+ 	if (freed < nr_to_scan)
+ 		freed += __i915_gem_shrink(dev_priv, nr_to_scan,
+ 							false);
+ 	if (freed < nr_to_scan)
+ 		freed += i915_gem_shrink_all(dev_priv);
+ 
+ 	if (unlock)
+ 		mutex_unlock(&dev->struct_mutex);
+ 	return freed;
+ }
++
 +/* All the new VM stuff */
 +unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
 +				  struct i915_address_space *vm)
 +{
 +	struct drm_i915_private *dev_priv = o->base.dev->dev_private;
 +	struct i915_vma *vma;
 +
 +	if (vm == &dev_priv->mm.aliasing_ppgtt->base)
 +		vm = &dev_priv->gtt.base;
 +
 +	BUG_ON(list_empty(&o->vma_list));
 +	list_for_each_entry(vma, &o->vma_list, vma_link) {
 +		if (vma->vm == vm)
 +			return vma->node.start;
 +
 +	}
 +	return -1;
 +}
 +
 +bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
 +			struct i915_address_space *vm)
 +{
 +	struct i915_vma *vma;
 +
 +	list_for_each_entry(vma, &o->vma_list, vma_link)
 +		if (vma->vm == vm)
 +			return true;
 +
 +	return false;
 +}
 +
 +bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o)
 +{
 +	struct drm_i915_private *dev_priv = o->base.dev->dev_private;
 +	struct i915_address_space *vm;
 +
 +	list_for_each_entry(vm, &dev_priv->vm_list, global_link)
 +		if (i915_gem_obj_bound(o, vm))
 +			return true;
 +
 +	return false;
 +}
 +
 +unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
 +				struct i915_address_space *vm)
 +{
 +	struct drm_i915_private *dev_priv = o->base.dev->dev_private;
 +	struct i915_vma *vma;
 +
 +	if (vm == &dev_priv->mm.aliasing_ppgtt->base)
 +		vm = &dev_priv->gtt.base;
 +
 +	BUG_ON(list_empty(&o->vma_list));
 +
 +	list_for_each_entry(vma, &o->vma_list, vma_link)
 +		if (vma->vm == vm)
 +			return vma->node.size;
 +
 +	return 0;
 +}
 +
 +struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
 +				     struct i915_address_space *vm)
 +{
 +	struct i915_vma *vma;
 +	list_for_each_entry(vma, &obj->vma_list, vma_link)
 +		if (vma->vm == vm)
 +			return vma;
 +
 +	return NULL;
 +}

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