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authorChris Wilson <chris@chris-wilson.co.uk>2016-10-12 15:48:24 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2016-10-12 19:17:20 +0300
commit45353ce59b3ec606e0a35386ac04210b1656e829 (patch)
tree7d932318702179a3d4f3fc3f2736f59a10e20026 /drivers/gpu/drm/i915/i915_gem_shrinker.c
parent8baa1f04b9ed8afe8d2d9f3884b335b1bab984d0 (diff)
downloadlinux-45353ce59b3ec606e0a35386ac04210b1656e829.tar.xz
drm/i915: Treat a framebuffer reference as an active reference whilst shrinking
Treat a framebuffer reference with the same priority as an active reference whilst shrinking. Framebuffers are likely to be reused and typically cost more to migrate to and from GPU memory (on LLC architectures we need to clflush), so defer the temptation to purge them during a kswapd run until we have run out of cheap buffers. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: John Harrison <john.c.harrison@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161012124824.23521-1-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.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 1c237d02f30b..de25b6e0a101 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -182,8 +182,9 @@ i915_gem_shrink(struct drm_i915_private *dev_priv,
!is_vmalloc_addr(obj->mapping))
continue;
- if ((flags & I915_SHRINK_ACTIVE) == 0 &&
- i915_gem_object_is_active(obj))
+ if (!(flags & I915_SHRINK_ACTIVE) &&
+ (i915_gem_object_is_active(obj) ||
+ obj->framebuffer_references))
continue;
if (!can_release_pages(obj))