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| author |   Christian König <christian.koenig@amd.com> | 2021-09-24 14:19:22 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-03-24 12:10:01 +0100 |
| commit | 8938d48451f5d7cb565dfa68aa0bd0e81985da09 (patch) | |
| tree | e809cae77b7e6949b35945a70a0d2feb4a226a26 /drivers/dma-buf/dma-resv.c | |
| parent | dma-buf: add dma_resv_replace_fences v2 (diff) | |
| download | linux-dev-8938d48451f5d7cb565dfa68aa0bd0e81985da09.tar.xz linux-dev-8938d48451f5d7cb565dfa68aa0bd0e81985da09.zip | |
dma-buf: finally make the dma_resv_list private v2
Drivers should never touch this directly.
v2: drop kerneldoc for now internal handling
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220321135856.1331-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/dma-buf/dma-resv.c')
| -rw-r--r-- | drivers/dma-buf/dma-resv.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 509060861cf3..5001e9b4420a 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -56,6 +56,12 @@ DEFINE_WD_CLASS(reservation_ww_class); EXPORT_SYMBOL(reservation_ww_class); +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 +139,11 @@ void dma_resv_fini(struct dma_resv *obj) } EXPORT_SYMBOL(dma_resv_fini); +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. |