Drivers should never touch this directly.
Signed-off-by: Christian König christian.koenig@amd.com --- drivers/dma-buf/dma-resv.c | 26 ++++++++++++++++++++++++++ include/linux/dma-resv.h | 26 +------------------------- 2 files changed, 27 insertions(+), 25 deletions(-)
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index a688dbded3d3..a12a3a39f280 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -56,6 +56,19 @@ DEFINE_WD_CLASS(reservation_ww_class); EXPORT_SYMBOL(reservation_ww_class);
+/** + * struct dma_resv_list - a list of shared fences + * @rcu: for internal use + * @shared_count: table of shared fences + * @shared_max: for growing shared fence table + * @shared: shared fence table + */ +struct dma_resv_list { + struct rcu_head rcu; + u32 shared_count, shared_max; + struct dma_fence __rcu *shared[]; +}; + /** * dma_resv_list_alloc - allocate fence list * @shared_max: number of fences we need space for @@ -133,6 +146,19 @@ void dma_resv_fini(struct dma_resv *obj) } EXPORT_SYMBOL(dma_resv_fini);
+/** + * dma_resv_shared_list - get the reservation object's shared fence list + * @obj: the reservation object + * + * Returns the shared fence list. Caller must either hold the objects + * through dma_resv_lock() or the RCU read side lock through rcu_read_lock(), + * or one of the variants of each + */ +static inline struct dma_resv_list *dma_resv_shared_list(struct dma_resv *obj) +{ + return rcu_dereference_check(obj->fence, dma_resv_held(obj)); +} + /** * dma_resv_reserve_shared - Reserve space to add shared fences to * a dma_resv. diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index e0be34265eae..3baf2a4a9a0d 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -47,18 +47,7 @@
extern struct ww_class reservation_ww_class;
-/** - * struct dma_resv_list - a list of shared fences - * @rcu: for internal use - * @shared_count: table of shared fences - * @shared_max: for growing shared fence table - * @shared: shared fence table - */ -struct dma_resv_list { - struct rcu_head rcu; - u32 shared_count, shared_max; - struct dma_fence __rcu *shared[]; -}; +struct dma_resv_list;
/** * struct dma_resv - a reservation object manages fences for a buffer @@ -440,19 +429,6 @@ dma_resv_excl_fence(struct dma_resv *obj) return rcu_dereference_check(obj->fence_excl, dma_resv_held(obj)); }
-/** - * dma_resv_shared_list - get the reservation object's shared fence list - * @obj: the reservation object - * - * Returns the shared fence list. Caller must either hold the objects - * through dma_resv_lock() or the RCU read side lock through rcu_read_lock(), - * or one of the variants of each - */ -static inline struct dma_resv_list *dma_resv_shared_list(struct dma_resv *obj) -{ - return rcu_dereference_check(obj->fence, dma_resv_held(obj)); -} - void dma_resv_init(struct dma_resv *obj); void dma_resv_fini(struct dma_resv *obj); int dma_resv_reserve_shared(struct dma_resv *obj, unsigned int num_fences);