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path: root/drivers/gpu/drm
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-rw-r--r--drivers/gpu/drm/i915/i915_gem_evict.c45
1 files changed, 20 insertions, 25 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index e85246ef691c..5c428fa3e0b3 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -93,7 +93,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignmen
93{ 93{
94 drm_i915_private_t *dev_priv = dev->dev_private; 94 drm_i915_private_t *dev_priv = dev->dev_private;
95 struct list_head eviction_list, unwind_list; 95 struct list_head eviction_list, unwind_list;
96 struct drm_i915_gem_object *obj_priv, *tmp_obj_priv; 96 struct drm_i915_gem_object *obj_priv;
97 struct list_head *render_iter, *bsd_iter; 97 struct list_head *render_iter, *bsd_iter;
98 int ret = 0; 98 int ret = 0;
99 99
@@ -175,39 +175,34 @@ i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignmen
175 return -ENOSPC; 175 return -ENOSPC;
176 176
177found: 177found:
178 /* drm_mm doesn't allow any other other operations while
179 * scanning, therefore store to be evicted objects on a
180 * temporary list. */
178 INIT_LIST_HEAD(&eviction_list); 181 INIT_LIST_HEAD(&eviction_list);
179 list_for_each_entry_safe(obj_priv, tmp_obj_priv, 182 while (!list_empty(&unwind_list)) {
180 &unwind_list, evict_list) { 183 obj_priv = list_first_entry(&unwind_list,
184 struct drm_i915_gem_object,
185 evict_list);
181 if (drm_mm_scan_remove_block(obj_priv->gtt_space)) { 186 if (drm_mm_scan_remove_block(obj_priv->gtt_space)) {
182 /* drm_mm doesn't allow any other other operations while
183 * scanning, therefore store to be evicted objects on a
184 * temporary list. */
185 list_move(&obj_priv->evict_list, &eviction_list); 187 list_move(&obj_priv->evict_list, &eviction_list);
186 } else 188 continue;
187 drm_gem_object_unreference(&obj_priv->base); 189 }
190 list_del(&obj_priv->evict_list);
191 drm_gem_object_unreference(&obj_priv->base);
188 } 192 }
189 193
190 /* Unbinding will emit any required flushes */ 194 /* Unbinding will emit any required flushes */
191 list_for_each_entry_safe(obj_priv, tmp_obj_priv, 195 while (!list_empty(&eviction_list)) {
192 &eviction_list, evict_list) { 196 obj_priv = list_first_entry(&eviction_list,
193#if WATCH_LRU 197 struct drm_i915_gem_object,
194 DRM_INFO("%s: evicting %p\n", __func__, &obj_priv->base); 198 evict_list);
195#endif 199 if (ret == 0)
196 ret = i915_gem_object_unbind(&obj_priv->base); 200 ret = i915_gem_object_unbind(&obj_priv->base);
197 if (ret) 201 list_del(&obj_priv->evict_list);
198 return ret;
199
200 drm_gem_object_unreference(&obj_priv->base); 202 drm_gem_object_unreference(&obj_priv->base);
201 } 203 }
202 204
203 /* The just created free hole should be on the top of the free stack 205 return ret;
204 * maintained by drm_mm, so this BUG_ON actually executes in O(1).
205 * Furthermore all accessed data has just recently been used, so it
206 * should be really fast, too. */
207 BUG_ON(!drm_mm_search_free(&dev_priv->mm.gtt_space, min_size,
208 alignment, 0));
209
210 return 0;
211} 206}
212 207
213int 208int