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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-18 16:47:59 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-20 13:48:16 +0300 |
| commit | eb0b44adc08c0be01a027eb009e9cdadc31e65a2 (patch) | |
| tree | cbc1c91f7793bb266eb99c13a2b432687d4f28ad /drivers/gpu/drm/i915/i915_gem_evict.c | |
| parent | be6a03769504753696033b7595d4dcbc4a16d088 (diff) | |
| download | linux-eb0b44adc08c0be01a027eb009e9cdadc31e65a2.tar.xz | |
drm/i915: kerneldoc for i915_gem_shrinker.c
And remove one bogus * from i915_gem_gtt.c since that's not a
kerneldoc there.
v2: Review from Chris:
- Clarify memory space to better distinguish from address space.
- Add note that shrink doesn't guarantee the freed memory and that
users must fall back to shrink_all.
- Explain how pinning ties in with eviction/shrinker.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_evict.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_evict.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index e3a49d94da3a..d09e35ed9c9a 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -63,6 +63,10 @@ mark_free(struct i915_vma *vma, struct list_head *unwind) * * This function is used by the object/vma binding code. * + * Since this function is only used to free up virtual address space it only + * ignores pinned vmas, and not object where the backing storage itself is + * pinned. Hence obj->pages_pin_count does not protect against eviction. + * * To clarify: This is for freeing up virtual address space, not for freeing * memory in e.g. the shrinker. */ |