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drm/self_refresh: replace use of system_wq with system_percpu_wq

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Currently if a user enqueue a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.

This lack of consistency cannot be addressed without refactoring the API.

system_wq should be the per-cpu workqueue, yet in this name nothing makes
that clear, so replace system_wq with system_percpu_wq.

The old wq (system_wq) will be kept for a few release cycles.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20251030162043.292468-4-marco.crivellari@suse.com
This commit is contained in:
Marco Crivellari 2025-10-30 17:20:43 +01:00 committed by Thomas Zimmermann
parent ecae1bb8b0
commit 391ce961bc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/drm_self_refresh_helper.c
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@ -218,7 +218,7 @@ void drm_self_refresh_helper_alter_state(struct drm_atomic_state *state)
ewma_psr_time_read(&sr_data->exit_avg_ms)) * 2;
mutex_unlock(&sr_data->avg_mutex);
mod_delayed_work(system_wq, &sr_data->entry_work,
mod_delayed_work(system_percpu_wq, &sr_data->entry_work,
msecs_to_jiffies(delay));
}
}