| Message ID | 20210111130019.3515669-12-mperttunen@nvidia.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Host1x/TegraDRM UAPI | expand |
On Mon, Jan 11, 2021 at 03:00:09PM +0200, Mikko Perttunen wrote: > Add a callback field to the job structure, to be called just before > the job is to be freed. This allows the job's submitter to clean > up any of its own state, like decrement runtime PM refcounts. > > Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> > --- > drivers/gpu/host1x/job.c | 3 +++ > include/linux/host1x.h | 4 ++++ > 2 files changed, 7 insertions(+) > > diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c > index 8f59b34672c2..09097e19c0d0 100644 > --- a/drivers/gpu/host1x/job.c > +++ b/drivers/gpu/host1x/job.c > @@ -79,6 +79,9 @@ static void job_free(struct kref *ref) > { > struct host1x_job *job = container_of(ref, struct host1x_job, ref); > > + if (job->release) > + job->release(job); > + > if (job->waiter) > host1x_intr_put_ref(job->syncpt->host, job->syncpt->id, > job->waiter, false); > diff --git a/include/linux/host1x.h b/include/linux/host1x.h > index 81ca70066c76..d48cab563d5c 100644 > --- a/include/linux/host1x.h > +++ b/include/linux/host1x.h > @@ -265,6 +265,10 @@ struct host1x_job { > > /* Fast-forward syncpoint increments on job timeout */ > bool syncpt_recovery; > + > + /* Callback called when job is freed */ > + void (*release)(struct host1x_job *job); > + void *user_data; It's not clean to me what the user_data is used for. It's not used in this patch at all, but perhaps it'll become relevant later on. I guess I'll see. Thierry
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index 8f59b34672c2..09097e19c0d0 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -79,6 +79,9 @@ static void job_free(struct kref *ref) { struct host1x_job *job = container_of(ref, struct host1x_job, ref); + if (job->release) + job->release(job); + if (job->waiter) host1x_intr_put_ref(job->syncpt->host, job->syncpt->id, job->waiter, false); diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 81ca70066c76..d48cab563d5c 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -265,6 +265,10 @@ struct host1x_job { /* Fast-forward syncpoint increments on job timeout */ bool syncpt_recovery; + + /* Callback called when job is freed */ + void (*release)(struct host1x_job *job); + void *user_data; }; struct host1x_job *host1x_job_alloc(struct host1x_channel *ch,
Add a callback field to the job structure, to be called just before the job is to be freed. This allows the job's submitter to clean up any of its own state, like decrement runtime PM refcounts. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> --- drivers/gpu/host1x/job.c | 3 +++ include/linux/host1x.h | 4 ++++ 2 files changed, 7 insertions(+)