From d290d6ee90b48b346978e8549b0bc0ba28c047fc Mon Sep 17 00:00:00 2001 From: Marco Crivellari Date: Fri, 13 Mar 2026 15:47:15 +0100 Subject: [PATCH] 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 Signed-off-by: Marco Crivellari Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 1816007f1040..1d9ceb432ec3 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -572,7 +572,7 @@ static void schedule_dc_vmin_vmax(struct amdgpu_device *adev, offload_work->stream = stream; offload_work->adjust = adjust_copy; - queue_work(system_wq, &offload_work->work); + queue_work(system_percpu_wq, &offload_work->work); } static void dm_vupdate_high_irq(void *interrupt_params) @@ -4268,7 +4268,7 @@ static void handle_hpd_irq_helper(struct amdgpu_dm_connector *aconnector) dc_sink_retain(aconnector->hdmi_prev_sink); /* Schedule delayed detection. */ - if (mod_delayed_work(system_wq, + if (mod_delayed_work(system_percpu_wq, &aconnector->hdmi_hpd_debounce_work, msecs_to_jiffies(aconnector->hdmi_hpd_debounce_delay_ms))) drm_dbg_kms(dev, "HDMI HPD: Re-scheduled debounce work\n"); -- 2.47.3