| Subject | Re: [PATCH 03/15] drm/panfrost: don't use pfdevfreq.busy_count to know if hw is idle | From | Steven Price <> | Date | Thu, 28 May 2020 14:22:38 +0100 |
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On 10/05/2020 17:55, Clément Péron wrote: > This use devfreq variable that will be lock with spinlock in future > patches. We should either introduce a function to access this one > but as devfreq is optional let's just remove it. > > Signed-off-by: Clément Péron <peron.clem@gmail.com>
As far as I can tell this should be safe. As you note this wouldn't work without devfreq anyway.
Reviewed-by: Steven Price <steven.price@arm.com>
> --- > drivers/gpu/drm/panfrost/panfrost_job.c | 4 ---- > 1 file changed, 4 deletions(-) > > diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c > index 7914b1570841..63e32a9f2749 100644 > --- a/drivers/gpu/drm/panfrost/panfrost_job.c > +++ b/drivers/gpu/drm/panfrost/panfrost_job.c > @@ -581,10 +581,6 @@ int panfrost_job_is_idle(struct panfrost_device *pfdev) > struct panfrost_job_slot *js = pfdev->js; > int i; > > - /* Check whether the hardware is idle */ > - if (atomic_read(&pfdev->devfreq.busy_count)) > - return false; > - > for (i = 0; i < NUM_JOB_SLOTS; i++) { > /* If there are any jobs in the HW queue, we're not idle */ > if (atomic_read(&js->queue[i].sched.hw_rq_count)) >
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