linux-kernel - Re: [PATCH] drm/lima: Expose job_hang

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Message-ID: <CAKGbVbt3ahDqYNC3jCYe19A2PmEk6iS9bT44XPfr0gfWoWjHjA@mail.gmail.com>
Date:   Mon, 13 Jul 2020 14:32:23 +0800
From:   Qiang Yu <yuq825@...il.com>
To:     Andrey Lebedev <andrey.lebedev@...il.com>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        lima@...ts.freedesktop.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andrey Lebedev <andrey@...edev.lt>
Subject: Re: [PATCH] drm/lima: Expose job_hang_limit module parameter

Applied to drm-misc-next:
https://cgit.freedesktop.org/drm/drm-misc/

Sorry for the late response.

Regards,
Qiang

On Tue, Jul 7, 2020 at 12:17 AM Andrey Lebedev <andrey.lebedev@...il.com> wrote:
>
> Hello guys,
>
> What is the status of this patch? Was this committed to any branch? Is
> it pending for merge to the mainline? Do I have to do anything in order
> to make it mergeable?
>
> On 6/19/20 10:58 AM, Andrey Lebedev wrote:
> > From: Andrey Lebedev <andrey@...edev.lt>
> >
> > Some pp or gp jobs can be successfully repeated even after they time outs.
> > Introduce lima module parameter to specify number of times a job can hang
> > before being dropped.
> >
> > Signed-off-by: Andrey Lebedev <andrey@...edev.lt>
> > ---
> >
> > Now all types are correct (uint).
> >
> >   drivers/gpu/drm/lima/lima_drv.c   | 4 ++++
> >   drivers/gpu/drm/lima/lima_drv.h   | 1 +
> >   drivers/gpu/drm/lima/lima_sched.c | 5 +++--
> >   3 files changed, 8 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_drv.c
> > index a831565af813..ab460121fd52 100644
> > --- a/drivers/gpu/drm/lima/lima_drv.c
> > +++ b/drivers/gpu/drm/lima/lima_drv.c
> > @@ -19,6 +19,7 @@
> >   int lima_sched_timeout_ms;
> >   uint lima_heap_init_nr_pages = 8;
> >   uint lima_max_error_tasks;
> > +uint lima_job_hang_limit;
> >
> >   MODULE_PARM_DESC(sched_timeout_ms, "task run timeout in ms");
> >   module_param_named(sched_timeout_ms, lima_sched_timeout_ms, int, 0444);
> > @@ -29,6 +30,9 @@ module_param_named(heap_init_nr_pages, lima_heap_init_nr_pages, uint, 0444);
> >   MODULE_PARM_DESC(max_error_tasks, "max number of error tasks to save");
> >   module_param_named(max_error_tasks, lima_max_error_tasks, uint, 0644);
> >
> > +MODULE_PARM_DESC(job_hang_limit, "number of times to allow a job to hang before dropping it (default 0)");
> > +module_param_named(job_hang_limit, lima_job_hang_limit, uint, 0444);
> > +
> >   static int lima_ioctl_get_param(struct drm_device *dev, void *data, struct drm_file *file)
> >   {
> >       struct drm_lima_get_param *args = data;
> > diff --git a/drivers/gpu/drm/lima/lima_drv.h b/drivers/gpu/drm/lima/lima_drv.h
> > index fdbd4077c768..c738d288547b 100644
> > --- a/drivers/gpu/drm/lima/lima_drv.h
> > +++ b/drivers/gpu/drm/lima/lima_drv.h
> > @@ -11,6 +11,7 @@
> >   extern int lima_sched_timeout_ms;
> >   extern uint lima_heap_init_nr_pages;
> >   extern uint lima_max_error_tasks;
> > +extern uint lima_job_hang_limit;
> >
> >   struct lima_vm;
> >   struct lima_bo;
> > diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
> > index e6cefda00279..1602985dfa04 100644
> > --- a/drivers/gpu/drm/lima/lima_sched.c
> > +++ b/drivers/gpu/drm/lima/lima_sched.c
> > @@ -503,8 +503,9 @@ int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name)
> >
> >       INIT_WORK(&pipe->recover_work, lima_sched_recover_work);
> >
> > -     return drm_sched_init(&pipe->base, &lima_sched_ops, 1, 0,
> > -                           msecs_to_jiffies(timeout), name);
> > +     return drm_sched_init(&pipe->base, &lima_sched_ops, 1,
> > +                           lima_job_hang_limit, msecs_to_jiffies(timeout),
> > +                           name);
> >   }
> >
> >   void lima_sched_pipe_fini(struct lima_sched_pipe *pipe)
> >
>
> --
> Andrey Lebedev aka -.- . -.. -.. . .-.
> Software engineer
> Homepage: http://lebedev.lt/