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| author | Thierry Reding <treding@nvidia.com> | 2015-01-28 14:29:02 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2015-04-02 18:46:20 +0200 |
| commit | b4a20144e0c0a45431695fa5968ce2ed8c9ce6ca (patch) | |
| tree | b88e8ff21a35d398d18b1bb7725a80f307c51bfc /drivers/gpu/host1x/syncpt.c | |
| parent | drm/tegra: sor: Dump registers via debugfs (diff) | |
| download | linux-b4a20144e0c0a45431695fa5968ce2ed8c9ce6ca.tar.xz linux-b4a20144e0c0a45431695fa5968ce2ed8c9ce6ca.zip | |
gpu: host1x: Export host1x_syncpt_read()
This function is used to read the current value of the syncpt and is
useful in situations where drivers don't schedule work and wait for the
syncpoint to increment. One particular use-case is using the syncpoint
as a VBLANK counter.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x/syncpt.c')
| -rw-r--r-- | drivers/gpu/host1x/syncpt.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index b10550ee1d89..6b7fdc1e2ed0 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -425,6 +425,12 @@ u32 host1x_syncpt_read_min(struct host1x_syncpt *sp) } EXPORT_SYMBOL(host1x_syncpt_read_min); +u32 host1x_syncpt_read(struct host1x_syncpt *sp) +{ + return host1x_syncpt_load(sp); +} +EXPORT_SYMBOL(host1x_syncpt_read); + int host1x_syncpt_nb_pts(struct host1x *host) { return host->info->nb_pts; |