dma-buf: use reservation objects
This allows reservation objects to be used in dma-buf. it's required
for implementing polling support on the fences that belong to a dma-buf.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> #drivers/media/v4l2-core/
Acked-by: Thomas Hellstrom <thellstrom@vmware.com> #drivers/gpu/drm/ttm
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> #drivers/gpu/drm/armada/
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 304ca8c..99d578b 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -336,7 +336,13 @@
struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
struct drm_gem_object *obj, int flags)
{
- return dma_buf_export(obj, &drm_gem_prime_dmabuf_ops, obj->size, flags);
+ struct reservation_object *robj = NULL;
+
+ if (dev->driver->gem_prime_res_obj)
+ robj = dev->driver->gem_prime_res_obj(obj);
+
+ return dma_buf_export(obj, &drm_gem_prime_dmabuf_ops, obj->size,
+ flags, robj);
}
EXPORT_SYMBOL(drm_gem_prime_export);