accel/ivpu: replace use of system_unbound_wq with system_dfl_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 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>
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Link: https://patch.msgid.link/20251029165642.364488-2-marco.crivellari@suse.com

diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index fe6f93af6ab01a776b595c23f9a28f307d62dbbb..b8ec6bf87f58d994b2a0dd59bc90074114980824 100644 (file)
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -186,7 +186,7 @@ void ivpu_pm_trigger_recovery(struct ivpu_device *vdev, const char *reason)
        if (atomic_cmpxchg(&vdev->pm->reset_pending, 0, 1) == 0) {
                ivpu_hw_diagnose_failure(vdev);
                ivpu_hw_irq_disable(vdev); /* Disable IRQ early to protect from IRQ storm */
-               queue_work(system_unbound_wq, &vdev->pm->recovery_work);
+               queue_work(system_dfl_wq, &vdev->pm->recovery_work);
        }
 }