From b312d8ca3a7cebe19941d969a51f2b7f899b81e2 Mon Sep 17 00:00:00 2001 From: Christian König Date: Wed, 14 Nov 2018 16:11:06 +0100 Subject: dma-buf: make fence sequence numbers 64 bit v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For a lot of use cases we need 64bit sequence numbers. Currently drivers overload the dma_fence structure to store the additional bits. Stop doing that and make the sequence number in the dma_fence always 64bit. For compatibility with hardware which can do only 32bit sequences the comparisons in __dma_fence_is_later only takes the lower 32bits as significant when the upper 32bits are all zero. v2: change the logic in __dma_fence_is_later Signed-off-by: Christian König Reviewed-by: Chunming Zhou Link: https://patchwork.freedesktop.org/patch/266927/ --- drivers/dma-buf/dma-fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/dma-buf/dma-fence.c') diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 136ec04d683f..3aa8733f832a 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -649,7 +649,7 @@ EXPORT_SYMBOL(dma_fence_wait_any_timeout); */ void dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops, - spinlock_t *lock, u64 context, unsigned seqno) + spinlock_t *lock, u64 context, u64 seqno) { BUG_ON(!lock); BUG_ON(!ops || !ops->get_driver_name || !ops->get_timeline_name); -- cgit v1.2.3