dma-buf: allow reserving more than one shared fence slot

Let's support simultaneous submissions to multiple engines.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.kernel.org/patch/10626149/

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/reservation.h b/include/linux/reservation.h
index 54cf6773a14c..5ddb0e143721 100644
--- a/include/linux/reservation.h
+++ b/include/linux/reservation.h
@@ -261,7 +261,8 @@ reservation_object_get_excl_rcu(struct reservation_object *obj)
         return fence;
 }
 
-int reservation_object_reserve_shared(struct reservation_object *obj);
+int reservation_object_reserve_shared(struct reservation_object *obj,
+                                      unsigned int num_fences);
 void reservation_object_add_shared_fence(struct reservation_object *obj,
                                          struct dma_fence *fence);