diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma-fence.h | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h index b12776883d14..10a849cb2d3f 100644 --- a/include/linux/dma-fence.h +++ b/include/linux/dma-fence.h @@ -26,6 +26,7 @@ struct dma_fence; struct dma_fence_ops; struct dma_fence_cb; +struct seq_file; /** * struct dma_fence - software synchronization primitive @@ -97,6 +98,7 @@ struct dma_fence { }; enum dma_fence_flag_bits { + DMA_FENCE_FLAG_SEQNO64_BIT, DMA_FENCE_FLAG_SIGNALED_BIT, DMA_FENCE_FLAG_TIMESTAMP_BIT, DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, @@ -125,14 +127,6 @@ struct dma_fence_cb { */ struct dma_fence_ops { /** - * @use_64bit_seqno: - * - * True if this dma_fence implementation uses 64bit seqno, false - * otherwise. - */ - bool use_64bit_seqno; - - /** * @get_driver_name: * * Returns the driver name. This is a callback to allow drivers to @@ -262,6 +256,9 @@ struct dma_fence_ops { void dma_fence_init(struct dma_fence *fence, const struct dma_fence_ops *ops, spinlock_t *lock, u64 context, u64 seqno); +void dma_fence_init64(struct dma_fence *fence, const struct dma_fence_ops *ops, + spinlock_t *lock, u64 context, u64 seqno); + void dma_fence_release(struct kref *kref); void dma_fence_free(struct dma_fence *fence); void dma_fence_describe(struct dma_fence *fence, struct seq_file *seq); @@ -381,6 +378,16 @@ bool dma_fence_remove_callback(struct dma_fence *fence, struct dma_fence_cb *cb); void dma_fence_enable_sw_signaling(struct dma_fence *fence); +static inline const char *dma_fence_driver_name(struct dma_fence *fence) +{ + return fence->ops->get_driver_name(fence); +} + +static inline const char *dma_fence_timeline_name(struct dma_fence *fence) +{ + return fence->ops->get_timeline_name(fence); +} + /** * dma_fence_is_signaled_locked - Return an indication if the fence * is signaled yet. @@ -441,21 +448,20 @@ dma_fence_is_signaled(struct dma_fence *fence) /** * __dma_fence_is_later - return if f1 is chronologically later than f2 + * @fence: fence in whose context to do the comparison * @f1: the first fence's seqno * @f2: the second fence's seqno from the same context - * @ops: dma_fence_ops associated with the seqno * * Returns true if f1 is chronologically later than f2. Both fences must be * from the same context, since a seqno is not common across contexts. */ -static inline bool __dma_fence_is_later(u64 f1, u64 f2, - const struct dma_fence_ops *ops) +static inline bool __dma_fence_is_later(struct dma_fence *fence, u64 f1, u64 f2) { /* This is for backward compatibility with drivers which can only handle * 32bit sequence numbers. Use a 64bit compare when the driver says to * do so. */ - if (ops->use_64bit_seqno) + if (test_bit(DMA_FENCE_FLAG_SEQNO64_BIT, &fence->flags)) return f1 > f2; return (int)(lower_32_bits(f1) - lower_32_bits(f2)) > 0; @@ -475,7 +481,7 @@ static inline bool dma_fence_is_later(struct dma_fence *f1, if (WARN_ON(f1->context != f2->context)) return false; - return __dma_fence_is_later(f1->seqno, f2->seqno, f1->ops); + return __dma_fence_is_later(f1, f1->seqno, f2->seqno); } /** |