drm/tilcdc: replace use of system_wq with system_percpu_wq

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 consistentcy cannot be addressed without refactoring the API.

This patch continues the effort to refactor worqueue APIs, which has begun
with the change introducing new workqueues and a new alloc_workqueue flag:

commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")

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/20251104165731.315074-1-marco.crivellari@suse.com

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 4d3b7059cd5b260d5eb8ad5297526b19a23d22b3..e5fd1e74de91075bc68a0d3edc67fa81fb29d7d1 100644 (file)
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -926,7 +926,7 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc)
                                drm_err(dev,
                                        "%s(0x%08x): Sync lost flood detected, recovering",
                                        __func__, stat);
-                               queue_work(system_wq,
+                               queue_work(system_percpu_wq,
                                           &tilcdc_crtc->recover_work);
                                tilcdc_write(dev, LCDC_INT_ENABLE_CLR_REG,
                                             LCDC_SYNC_LOST);