summaryrefslogtreecommitdiff
path: root/drivers/dma-buf
diff options
context:
space:
mode:
authorLionel Landwerlin <lionel.g.landwerlin@intel.com>2020-06-25 15:34:42 +0300
committerChristian König <christian.koenig@amd.com>2020-07-02 15:21:24 +0200
commit91fac86d8636684fc32ec3ba20e8532484df2308 (patch)
treefae38b0e7f95c5370f69b3259499e835435b4ebd /drivers/dma-buf
parent55dd37e52d122277192e7d0aa5530c59c646426b (diff)
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')
-rw-r--r--drivers/dma-buf/dma-fence-chain.c7
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.