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-rw-r--r--drivers/gpu/drm/i915/i915_gem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b6ad1bae5a15..902fa427c196 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -229,7 +229,8 @@ __i915_gem_object_release_shmem(struct drm_i915_gem_object *obj,
if (obj->mm.madv == I915_MADV_DONTNEED)
obj->mm.dirty = false;
- if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0)
+ if ((obj->base.read_domains & I915_GEM_DOMAIN_CPU) == 0 &&
+ !cpu_cache_is_coherent(obj->base.dev, obj->cache_level))
drm_clflush_sg(pages);
obj->base.read_domains = I915_GEM_DOMAIN_CPU;