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drm/nouveau: replace use of system_unbound_wq with system_dfl_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_unbound_wq should be the default workqueue so as not to enforce
locality constraints for random work whenever it's not required.

Adding system_dfl_wq to encourage its use when unbound work should be used.

The old system_unbound_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>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20251031102020.95349-2-marco.crivellari@suse.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Marco Crivellari 2025-10-31 11:20:19 +01:00 committed by Danilo Krummrich
parent e22bb770b0
commit ef1b532841
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/dispnv50/disp.c
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@ -2474,7 +2474,7 @@ nv50_disp_atomic_commit(struct drm_device *dev,
pm_runtime_get_noresume(dev->dev);
if (nonblock)
queue_work(system_unbound_wq, &state->commit_work);
queue_work(system_dfl_wq, &state->commit_work);
else
nv50_disp_atomic_commit_tail(state);