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| author | Mikko Perttunen <mperttunen@nvidia.com> | 2021-06-10 14:04:43 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-08-10 15:40:23 +0300 |
| commit | c78f837ae3d1e532ff4eb90155b42d7a2e892a3f (patch) | |
| tree | 1244b0c40c89580256677aeef5648986738ecd81 /drivers/gpu/drm/tegra | |
| parent | 687db2207b1bc94ca34743871167923a6de78d85 (diff) | |
| download | linux-c78f837ae3d1e532ff4eb90155b42d7a2e892a3f.tar.xz | |
gpu: host1x: Add no-recovery mode
Add a new property for jobs to enable or disable recovery i.e.
CPU increments of syncpoints to max value on job timeout. This
allows for a more solid model for hanged jobs, where userspace
doesn't need to guess if a syncpoint increment happened because
the job completed, or because job timeout was triggered.
On job timeout, we stop the channel, NOP all future jobs on the
channel using the same syncpoint, mark the syncpoint as locked
and resume the channel from the next job, if any.
The future jobs are NOPed, since because we don't do the CPU
increments, the value of the syncpoint is no longer synchronized,
and any waiters would become confused if a future job incremented
the syncpoint. The syncpoint is marked locked to ensure that any
future jobs cannot increment the syncpoint either, until the
application has recognized the situation and reallocated the
syncpoint.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index f96c237b2242..739250acd498 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -201,6 +201,7 @@ int tegra_drm_submit(struct tegra_drm_context *context, job->client = client; job->class = client->class; job->serialize = true; + job->syncpt_recovery = true; /* * Track referenced BOs so that they can be unreferenced after the |