diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 15:58:36 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 22:53:47 +0300 |
| commit | 03ac84f1830ec0b90f622500591eb3cc554ee479 (patch) | |
| tree | 1065394c640a1adaa555b0001ada12c52d01a7cb /drivers/gpu/drm/i915/i915_gem_shrinker.c | |
| parent | a4f5ea64f0a818586b9de71803824b43dd01e517 (diff) | |
| download | linux-03ac84f1830ec0b90f622500591eb3cc554ee479.tar.xz | |
drm/i915: Pass around sg_table to get_pages/put_pages backend
The plan is to move obj->pages out from under the struct_mutex into its
own per-object lock. We need to prune any assumption of the struct_mutex
from the get_pages/put_pages backends, and to make it easier we pass
around the sg_table to operate on rather than indirectly via the obj.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-13-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 | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c index 124f69a80162..f95061faeae6 100644 --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -91,6 +91,13 @@ static bool can_release_pages(struct drm_i915_gem_object *obj) return swap_available() || obj->mm.madv == I915_MADV_DONTNEED; } +static bool unsafe_drop_pages(struct drm_i915_gem_object *obj) +{ + if (i915_gem_object_unbind(obj) == 0) + __i915_gem_object_put_pages(obj); + return !obj->mm.pages; +} + /** * i915_gem_shrink - Shrink buffer object caches * @dev_priv: i915 device @@ -192,9 +199,7 @@ i915_gem_shrink(struct drm_i915_private *dev_priv, i915_gem_object_get(obj); - /* For the unbound phase, this should be a no-op! */ - i915_gem_object_unbind(obj); - if (__i915_gem_object_put_pages(obj) == 0) + if (unsafe_drop_pages(obj)) count += obj->base.size >> PAGE_SHIFT; i915_gem_object_put(obj); |