diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_shrinker.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_shrinker.c | 58 |
1 files changed, 46 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index 66571466e9a8..6f10b421487b 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -131,7 +131,16 @@ i915_gem_shrink(struct drm_i915_private *dev_priv, unsigned long count = 0; trace_i915_gem_shrink(dev_priv, target, flags); - i915_gem_retire_requests(dev_priv->dev); + i915_gem_retire_requests(dev_priv); + + /* + * Unbinding of objects will require HW access; Let us not wake the + * device just to recover a little memory. If absolutely necessary, + * we will force the wake during oom-notifier. + */ + if ((flags & I915_SHRINK_BOUND) && + !intel_runtime_pm_get_if_in_use(dev_priv)) + flags &= ~I915_SHRINK_BOUND; /* * As we may completely rewrite the (un)bound list whilst unbinding @@ -197,7 +206,10 @@ i915_gem_shrink(struct drm_i915_private *dev_priv, list_splice(&still_in_list, phase->list); } - i915_gem_retire_requests(dev_priv->dev); + if (flags & I915_SHRINK_BOUND) + intel_runtime_pm_put(dev_priv); + + i915_gem_retire_requests(dev_priv); return count; } @@ -245,7 +257,7 @@ i915_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc) { struct drm_i915_private *dev_priv = container_of(shrinker, struct drm_i915_private, mm.shrinker); - struct drm_device *dev = dev_priv->dev; + struct drm_device *dev = &dev_priv->drm; struct drm_i915_gem_object *obj; unsigned long count; bool unlock; @@ -253,6 +265,8 @@ i915_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc) if (!i915_gem_shrinker_lock(dev, &unlock)) return 0; + i915_gem_retire_requests(dev_priv); + count = 0; list_for_each_entry(obj, &dev_priv->mm.unbound_list, global_list) if (can_release_pages(obj)) @@ -274,7 +288,7 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc) { struct drm_i915_private *dev_priv = container_of(shrinker, struct drm_i915_private, mm.shrinker); - struct drm_device *dev = dev_priv->dev; + struct drm_device *dev = &dev_priv->drm; unsigned long freed; bool unlock; @@ -309,7 +323,7 @@ i915_gem_shrinker_lock_uninterruptible(struct drm_i915_private *dev_priv, { unsigned long timeout = msecs_to_jiffies(timeout_ms) + 1; - while (!i915_gem_shrinker_lock(dev_priv->dev, &slu->unlock)) { + while (!i915_gem_shrinker_lock(&dev_priv->drm, &slu->unlock)) { schedule_timeout_killable(1); if (fatal_signal_pending(current)) return false; @@ -330,7 +344,7 @@ i915_gem_shrinker_unlock_uninterruptible(struct drm_i915_private *dev_priv, { dev_priv->mm.interruptible = slu->was_interruptible; if (slu->unlock) - mutex_unlock(&dev_priv->dev->struct_mutex); + mutex_unlock(&dev_priv->drm.struct_mutex); } static int @@ -345,7 +359,9 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr) if (!i915_gem_shrinker_lock_uninterruptible(dev_priv, &slu, 5000)) return NOTIFY_DONE; + intel_runtime_pm_get(dev_priv); freed_pages = i915_gem_shrink_all(dev_priv); + intel_runtime_pm_put(dev_priv); /* Because we may be allocating inside our own driver, we cannot * assert that there are no objects with pinned pages that are not @@ -386,17 +402,35 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr struct drm_i915_private *dev_priv = container_of(nb, struct drm_i915_private, mm.vmap_notifier); struct shrinker_lock_uninterruptible slu; - unsigned long freed_pages; + struct i915_vma *vma, *next; + unsigned long freed_pages = 0; + int ret; if (!i915_gem_shrinker_lock_uninterruptible(dev_priv, &slu, 5000)) return NOTIFY_DONE; - freed_pages = i915_gem_shrink(dev_priv, -1UL, - I915_SHRINK_BOUND | - I915_SHRINK_UNBOUND | - I915_SHRINK_ACTIVE | - I915_SHRINK_VMAPS); + /* Force everything onto the inactive lists */ + ret = i915_gem_wait_for_idle(dev_priv); + if (ret) + goto out; + + intel_runtime_pm_get(dev_priv); + freed_pages += i915_gem_shrink(dev_priv, -1UL, + I915_SHRINK_BOUND | + I915_SHRINK_UNBOUND | + I915_SHRINK_ACTIVE | + I915_SHRINK_VMAPS); + intel_runtime_pm_put(dev_priv); + + /* We also want to clear any cached iomaps as they wrap vmap */ + list_for_each_entry_safe(vma, next, + &dev_priv->ggtt.base.inactive_list, vm_link) { + unsigned long count = vma->node.size >> PAGE_SHIFT; + if (vma->iomap && i915_vma_unbind(vma) == 0) + freed_pages += count; + } +out: i915_gem_shrinker_unlock_uninterruptible(dev_priv, &slu); *(unsigned long *)ptr += freed_pages; |