[Linaro-mm-sig] [PATCH v4 03/18] drm/sched: Add dependency tracking

[Melissa Wen]

On 07/28, Daniel Vetter wrote:
> On Wed, Jul 28, 2021 at 1:29 PM Christian König
> <ckoenig.leichtzumerken at gmail.com> wrote:
> > Am 27.07.21 um 13:09 schrieb Daniel Vetter:
> > > Adding a few more people to this bikeshed.
> > >
> > > On Mon, Jul 12, 2021 at 10:02 PM Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
> > >
> > >> @@ -349,6 +367,13 @@ int drm_sched_job_init(struct drm_sched_job *job,
> > >>                         struct drm_sched_entity *entity,
> > >>                         void *owner);
> > >>   void drm_sched_job_arm(struct drm_sched_job *job);
> > >> +int drm_sched_job_await_fence(struct drm_sched_job *job,
> > >> +                             struct dma_fence *fence);
> > >> +int drm_sched_job_await_implicit(struct drm_sched_job *job,
> > >> +                                struct drm_gem_object *obj,
> > >> +                                bool write);
> > >> +
> > >> +
> > > I'm still waiting on the paint delivery for these two functions so I
> > > can finish this shed.
> >
> > Well I wouldn't call that bike shedding, good names are important.
> >
> > Just imaging we would have called the exclusive-fence write-fence instead.
> 
> Sure naming matters, but at least to my English understanding there's
> not a semantic different between telling something to await for
> something else (i.e. add a dependency) or to tell something to add a
> dependency (i.e. await that thing later on before you start doing your
> own thing).
> 
> Exclusive vs write fence otoh is a pretty big difference in what it means.
> 
> But also if there's consensus that I'm wrong then I'm happy to pick
> the more preferred of the two options I deem equivalent.
> 
> > What speaks against calling them add_dependency() and
> > _add_implicit_depencencies() ?
> 
> Nothing. I just like another ack on this before I rename it all. Also
> I wasnt sure what you'd want to name the implicit dependency thing.
> 
> Lucas, Boris, Melissa, any acks here?

so, my English is far from good; but _add_dependency sounds good to me.

Melissa

> -Daniel
> 
> > Regards,
> > Christian.
> >
> > >
> > > Thanks, Daniel
> > >
> > >>   void drm_sched_entity_modify_sched(struct drm_sched_entity *entity,
> > >>                                      struct drm_gpu_scheduler **sched_list,
> > >>                                      unsigned int num_sched_list);
> > >> --
> > >> 2.32.0
> > >>
> > >
> >
> 
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
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