From: Luben Tuikov <ltuikov89@gmail.com>
To: "Philipp Stanner" <phasta@kernel.org>,
"Lyude Paul" <lyude@redhat.com>,
"Danilo Krummrich" <dakr@kernel.org>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Maxime Ripard" <mripard@kernel.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Matthew Brost" <matthew.brost@intel.com>,
"Christian König" <ckoenig.leichtzumerken@gmail.com>,
"Dave Airlie" <airlied@redhat.com>,
"Tvrtko Ursulin" <tursulin@ursulin.net>
Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] drm/sched: Make drm_sched_entity_kill() a public function
Date: Fri, 17 Apr 2026 00:35:58 -0400 [thread overview]
Message-ID: <7b4509b0-9c35-40ca-9388-881236c82a32@gmail.com> (raw)
In-Reply-To: <20260415144956.272506-2-phasta@kernel.org>
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On 2026-04-15 10:49, Philipp Stanner wrote:
> Some drivers do not care on teardown whether the last jobs pending in an
> entity are actually executed before teardown completed. For such
> scenarios, drm_sched_entity_flush() is not the ideal function since it's
> intended to wait for jobs to complete.
>
> Make drm_sched_entity_kill() public for that use-case and update the
> documentation.
This is a good patch and great suggestion by Danilo.
>
> Suggested-by: Danilo Krummrich <dakr@kernel.org>
> Signed-off-by: Philipp Stanner <phasta@kernel.org>
> ---
> Changes in v2:
> - Improve wording, fix typo.
> ---
> drivers/gpu/drm/scheduler/sched_entity.c | 13 +++++++++++--
> include/drm/gpu_scheduler.h | 1 +
> 2 files changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
> index 61a4818cc87b..7be5811b90cd 100644
> --- a/drivers/gpu/drm/scheduler/sched_entity.c
> +++ b/drivers/gpu/drm/scheduler/sched_entity.c
> @@ -267,8 +267,16 @@ static void drm_sched_entity_kill_jobs_cb(struct dma_fence *f,
> schedule_work(&job->work);
> }
>
> -/* Remove the entity from the scheduler and kill all pending jobs */
> -static void drm_sched_entity_kill(struct drm_sched_entity *entity)
> +/**
> + * drm_sched_entity_kill - kill an entity's pending jobs and remove it
> + * @entity: the entity to remove
> + *
> + * Removes the entity from the scheduler's run queue and kills all pending jobs.
> + *
> + * This function should be used over drm_sched_entity_flush() if it is not
> + * desired to actually wait for all pending jobs to finish.
> + */
I felt that the email body above describing this patch was somewhat clearer. Perhaps something like:
(Notice the change "if" --> "when".)
"Use this function over drm_sched_entity_flush(), when the caller is not interested to wait
for pending jobs to complete. This function kills any pending jobs."
--
Regards,
Luben
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prev parent reply other threads:[~2026-04-17 4:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-15 14:49 Philipp Stanner
2026-04-15 14:49 ` [PATCH v2 2/2] drm/nouveau: Fix double call to drm_sched_entity_fini() Philipp Stanner
2026-04-16 20:12 ` [PATCH v2 1/2] drm/sched: Make drm_sched_entity_kill() a public function Danilo Krummrich
2026-04-17 4:35 ` Luben Tuikov [this message]
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