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| author |   Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2020-06-25 15:34:42 +0300 |
|---|---|---|
| committer |   Christian König <christian.koenig@amd.com> | 2020-07-02 15:21:24 +0200 |
| commit | 91fac86d8636684fc32ec3ba20e8532484df2308 (patch) | |
| tree | fae38b0e7f95c5370f69b3259499e835435b4ebd /drivers/dma-buf/dma-fence-chain.c | |
| parent | MAINTAINERS: Add myself as DMA-buf maintainer (diff) | |
| download | linux-91fac86d8636684fc32ec3ba20e8532484df2308.tar.xz linux-91fac86d8636684fc32ec3ba20e8532484df2308.zip | |
Revert "dma-buf: Report signaled links inside dma-fence-chain"
This reverts commit 5de376bb434f80a13138f0ebedc8351ab73d8b0d.
This change breaks synchronization of a timeline.
dma_fence_chain_find_seqno() might be a bit of a confusing name but
this function is not trying to find a particular seqno, is supposed to
give a fence to wait on for a particular point in the timeline.
In a timeline, a particular value is reached when all the points up to
and including that value have signaled.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/372958/
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/dma-buf/dma-fence-chain.c')
| -rw-r--r-- | drivers/dma-buf/dma-fence-chain.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/dma-buf/dma-fence-chain.c b/drivers/dma-buf/dma-fence-chain.c index c435bbba851c..3d123502ff12 100644 --- a/drivers/dma-buf/dma-fence-chain.c +++ b/drivers/dma-buf/dma-fence-chain.c @@ -99,12 +99,6 @@ int dma_fence_chain_find_seqno(struct dma_fence **pfence, uint64_t seqno) return -EINVAL; dma_fence_chain_for_each(*pfence, &chain->base) { - if ((*pfence)->seqno < seqno) { /* already signaled */ - dma_fence_put(*pfence); - *pfence = NULL; - break; - } - if ((*pfence)->context != chain->base.context || to_dma_fence_chain(*pfence)->prev_seqno < seqno) break; @@ -228,7 +222,6 @@ EXPORT_SYMBOL(dma_fence_chain_ops); * @chain: the chain node to initialize * @prev: the previous fence * @fence: the current fence - * @seqno: the sequence number (syncpt) of the fence within the chain * * Initialize a new chain node and either start a new chain or add the node to * the existing chain of the previous fence. |