drm/i915: Extract vm specific part of eviction

As we'll see in the next patch, being able to evict for just 1 VM is
handy.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index cc8974f..e9033f0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -155,12 +155,31 @@ found:
        return ret;
 }
 
+static int i915_gem_evict_vm(struct i915_address_space *vm, bool do_idle)
+{
+       struct i915_vma *vma, *next;
+       int ret;
+
+       if (do_idle) {
+               ret = i915_gpu_idle(vm->dev);
+               if (ret)
+                       return ret;
+
+               i915_gem_retire_requests(vm->dev);
+       }
+
+       list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list)
+               if (vma->obj->pin_count == 0)
+                       WARN_ON(i915_vma_unbind(vma));
+
+       return 0;
+}
+
 int
 i915_gem_evict_everything(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        struct i915_address_space *vm;
-       struct i915_vma *vma, *next;
        bool lists_empty = true;
        int ret;
 
@@ -187,11 +206,8 @@ i915_gem_evict_everything(struct drm_device *dev)
        i915_gem_retire_requests(dev);
 
        /* Having flushed everything, unbind() should never raise an error */
-       list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
-               list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list)
-                       if (vma->obj->pin_count == 0)
-                               WARN_ON(i915_vma_unbind(vma));
-       }
+       list_for_each_entry(vm, &dev_priv->vm_list, global_link)
+               WARN_ON(i915_gem_evict_vm(vm, false));
 
        return 0;
 }