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drm/amd/display: Replace use of system_wq with system_percpu_wq

This patch continues the effort to refactor workqueue APIs, which has begun
with the changes 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")

The point of the refactoring is to eventually alter the default behavior of
workqueues to become unbound by default so that their workload placement is
optimized by the scheduler.

Before that to happen, workqueue users must be converted to the better named
new workqueues with no intended behaviour changes:

system_wq -> system_percpu_wq
system_unbound_wq -> system_dfl_wq

This way the old obsolete workqueues (system_wq, system_unbound_wq) can be
removed in the future.

Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

authored by

Marco Crivellari and committed by
Alex Deucher d290d6ee e0e9792e

+2 -2
+2 -2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
··· 572 572 offload_work->stream = stream; 573 573 offload_work->adjust = adjust_copy; 574 574 575 - queue_work(system_wq, &offload_work->work); 575 + queue_work(system_percpu_wq, &offload_work->work); 576 576 } 577 577 578 578 static void dm_vupdate_high_irq(void *interrupt_params) ··· 4268 4268 dc_sink_retain(aconnector->hdmi_prev_sink); 4269 4269 4270 4270 /* Schedule delayed detection. */ 4271 - if (mod_delayed_work(system_wq, 4271 + if (mod_delayed_work(system_percpu_wq, 4272 4272 &aconnector->hdmi_hpd_debounce_work, 4273 4273 msecs_to_jiffies(aconnector->hdmi_hpd_debounce_delay_ms))) 4274 4274 drm_dbg_kms(dev, "HDMI HPD: Re-scheduled debounce work\n");