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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-04 09:52:26 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-04 10:09:17 +0300 |
| commit | 15717de219f2ea4792d27ff62c29d08e46cda7f8 (patch) | |
| tree | bddf0f5e92ec4833db4d549e635fa3081bec6b6a /drivers/gpu/drm/i915/i915_gem_shrinker.c | |
| parent | 2bfa996e031bdc6de1567ee05438f8a310fa7a4c (diff) | |
| download | linux-15717de219f2ea4792d27ff62c29d08e46cda7f8.tar.xz | |
drm/i915: Count how many VMA are bound for an object
Since we may have VMA allocated for an object, but we interrupted their
binding, there is a disparity between have elements on the obj->vma_list
and being bound. i915_gem_obj_bound_any() does this check, but this is
not rigorously observed - add an explicit count to make it easier.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470293567-10811-7-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_shrinker.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_shrinker.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index 5d4772c146b1..b95cd9f404f6 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -48,19 +48,15 @@ static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task) #endif } -static int num_vma_bound(struct drm_i915_gem_object *obj) +static bool any_vma_pinned(struct drm_i915_gem_object *obj) { struct i915_vma *vma; - int count = 0; - list_for_each_entry(vma, &obj->vma_list, obj_link) { - if (drm_mm_node_allocated(&vma->node)) - count++; + list_for_each_entry(vma, &obj->vma_list, obj_link) if (vma->pin_count) - count++; - } + return true; - return count; + return false; } static bool swap_available(void) @@ -82,7 +78,10 @@ static bool can_release_pages(struct drm_i915_gem_object *obj) * to the GPU, simply unbinding from the GPU is not going to succeed * in releasing our pin count on the pages themselves. */ - if (obj->pages_pin_count != num_vma_bound(obj)) + if (obj->pages_pin_count > obj->bind_count) + return false; + + if (any_vma_pinned(obj)) return false; /* We can only return physical pages to the system if we can either |