A foreign dma-buf does not share our cache domain tracking, and we rely on the producer ensuring cache coherency. Marking them as being in the CPU domain is incorrect. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem_dmabuf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index 075d7a94e77c..67f7fc5c59ae 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -335,6 +335,8 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev, drm_gem_private_object_init(dev, &obj->base, dma_buf->size); i915_gem_object_init(obj, &i915_gem_object_dmabuf_ops); obj->base.import_attach = attach; + obj->base.read_domains = I915_GEM_DOMAIN_GTT; + obj->base.write_domain = 0; return &obj->base; -- 2.8.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
