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| author | Mikko Perttunen <mperttunen@nvidia.com> | 2021-06-10 14:04:42 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-08-10 15:39:50 +0300 |
| commit | 687db2207b1bc94ca34743871167923a6de78d85 (patch) | |
| tree | d7c724be2782c602454234e74dfc074717b7c19b /include/linux/host1x.h | |
| parent | e73f0f0ee7541171d89f2e2491130c7771ba58d3 (diff) | |
| download | linux-687db2207b1bc94ca34743871167923a6de78d85.tar.xz | |
gpu: host1x: Add DMA fence implementation
Add an implementation of dma_fences based on syncpoints. Syncpoint
interrupts are used to signal fences. Additionally, after
software signaling has been enabled, a 30 second timeout is started.
If the syncpoint threshold is not reached within this period,
the fence is signalled with an -ETIMEDOUT error code. This is to
allow fences that would never reach their syncpoint threshold to
be cleaned up. The timeout can potentially be removed in the future
after job tracking code has been refactored.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/linux/host1x.h')
| -rw-r--r-- | include/linux/host1x.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 9b0487c88571..eb4cc8c964a4 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -170,6 +170,8 @@ u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base); void host1x_syncpt_release_vblank_reservation(struct host1x_client *client, u32 syncpt_id); +struct dma_fence *host1x_fence_create(struct host1x_syncpt *sp, u32 threshold); + /* * host1x channel */ |