#include "i915_trace.h"
static bool
-mark_free(struct drm_i915_gem_object *obj, struct list_head *unwind)
+mark_free(struct i915_vma *vma, struct list_head *unwind)
{
- if (obj->pin_count)
+ if (vma->obj->pin_count)
return false;
- list_add(&obj->exec_list, unwind);
- return drm_mm_scan_add_block(obj->gtt_space);
+ if (WARN_ON(!list_empty(&vma->exec_list)))
+ return false;
+
+ list_add(&vma->exec_list, unwind);
+ return drm_mm_scan_add_block(&vma->node);
}
int
-i915_gem_evict_something(struct drm_device *dev, int min_size,
- unsigned alignment, unsigned cache_level,
+i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
+ int min_size, unsigned alignment, unsigned cache_level,
bool mappable, bool nonblocking)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct list_head eviction_list, unwind_list;
- struct drm_i915_gem_object *obj;
+ struct i915_vma *vma;
int ret = 0;
trace_i915_gem_evict(dev, min_size, alignment, mappable);
*/
INIT_LIST_HEAD(&unwind_list);
- if (mappable)
- drm_mm_init_scan_with_range(&dev_priv->mm.gtt_space,
- min_size, alignment, cache_level,
- 0, dev_priv->gtt.mappable_end);
- else
- drm_mm_init_scan(&dev_priv->mm.gtt_space,
- min_size, alignment, cache_level);
+ if (mappable) {
+ BUG_ON(!i915_is_ggtt(vm));
+ drm_mm_init_scan_with_range(&vm->mm, min_size,
+ alignment, cache_level, 0,
+ dev_priv->gtt.mappable_end);
+ } else
+ drm_mm_init_scan(&vm->mm, min_size, alignment, cache_level);
/* First see if there is a large enough contiguous idle region... */
- list_for_each_entry(obj, &dev_priv->mm.inactive_list, mm_list) {
- if (mark_free(obj, &unwind_list))
+ list_for_each_entry(vma, &vm->inactive_list, mm_list) {
+ if (mark_free(vma, &unwind_list))
goto found;
}
goto none;
/* Now merge in the soon-to-be-expired objects... */
- list_for_each_entry(obj, &dev_priv->mm.active_list, mm_list) {
- if (mark_free(obj, &unwind_list))
+ list_for_each_entry(vma, &vm->active_list, mm_list) {
+ if (mark_free(vma, &unwind_list))
goto found;
}
none:
/* Nothing found, clean up and bail out! */
while (!list_empty(&unwind_list)) {
- obj = list_first_entry(&unwind_list,
- struct drm_i915_gem_object,
+ vma = list_first_entry(&unwind_list,
+ struct i915_vma,
exec_list);
-
- ret = drm_mm_scan_remove_block(obj->gtt_space);
+ ret = drm_mm_scan_remove_block(&vma->node);
BUG_ON(ret);
- list_del_init(&obj->exec_list);
+ list_del_init(&vma->exec_list);
}
/* We expect the caller to unpin, evict all and try again, or give up.
- * So calling i915_gem_evict_everything() is unnecessary.
+ * So calling i915_gem_evict_vm() is unnecessary.
*/
return -ENOSPC;
* temporary list. */
INIT_LIST_HEAD(&eviction_list);
while (!list_empty(&unwind_list)) {
- obj = list_first_entry(&unwind_list,
- struct drm_i915_gem_object,
+ vma = list_first_entry(&unwind_list,
+ struct i915_vma,
exec_list);
- if (drm_mm_scan_remove_block(obj->gtt_space)) {
- list_move(&obj->exec_list, &eviction_list);
- drm_gem_object_reference(&obj->base);
+ if (drm_mm_scan_remove_block(&vma->node)) {
+ list_move(&vma->exec_list, &eviction_list);
+ drm_gem_object_reference(&vma->obj->base);
continue;
}
- list_del_init(&obj->exec_list);
+ list_del_init(&vma->exec_list);
}
/* Unbinding will emit any required flushes */
while (!list_empty(&eviction_list)) {
- obj = list_first_entry(&eviction_list,
- struct drm_i915_gem_object,
+ struct drm_gem_object *obj;
+ vma = list_first_entry(&eviction_list,
+ struct i915_vma,
exec_list);
+
+ obj = &vma->obj->base;
+ list_del_init(&vma->exec_list);
if (ret == 0)
- ret = i915_gem_object_unbind(obj);
+ ret = i915_vma_unbind(vma);
- list_del_init(&obj->exec_list);
- drm_gem_object_unreference(&obj->base);
+ drm_gem_object_unreference(obj);
}
return ret;
}
+/**
+ * i915_gem_evict_vm - Try to free up VM space
+ *
+ * @vm: Address space to evict from
+ * @do_idle: Boolean directing whether to idle first.
+ *
+ * VM eviction is about freeing up virtual address space. If one wants fine
+ * grained eviction, they should see evict something for more details. In terms
+ * of freeing up actual system memory, this function may not accomplish the
+ * desired result. An object may be shared in multiple address space, and this
+ * function will not assert those objects be freed.
+ *
+ * Using do_idle will result in a more complete eviction because it retires, and
+ * inactivates current BOs.
+ */
+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 drm_i915_gem_object *obj, *next;
- bool lists_empty;
+ struct i915_address_space *vm;
+ bool lists_empty = true;
int ret;
- lists_empty = (list_empty(&dev_priv->mm.inactive_list) &&
- list_empty(&dev_priv->mm.active_list));
+ list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
+ lists_empty = (list_empty(&vm->inactive_list) &&
+ list_empty(&vm->active_list));
+ if (!lists_empty)
+ lists_empty = false;
+ }
+
if (lists_empty)
return -ENOSPC;
i915_gem_retire_requests(dev);
/* Having flushed everything, unbind() should never raise an error */
- list_for_each_entry_safe(obj, next,
- &dev_priv->mm.inactive_list, mm_list)
- if (obj->pin_count == 0)
- WARN_ON(i915_gem_object_unbind(obj));
+ list_for_each_entry(vm, &dev_priv->vm_list, global_link)
+ WARN_ON(i915_gem_evict_vm(vm, false));
return 0;
}
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