From: Marco Crivellari <marco.crivellari@suse.com>
To: linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org
Cc: Tejun Heo <tj@kernel.org>, Lai Jiangshan <jiangshanlai@gmail.com>,
Frederic Weisbecker <frederic@kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Marco Crivellari <marco.crivellari@suse.com>,
Michal Hocko <mhocko@suse.com>,
Alex Deucher <alexander.deucher@amd.com>,
Christian Konig <christian.koenig@amd.com>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Philip Yang <yangp@amd.com>
Subject: [PATCH v3 4/4] drm/radeon: add WQ_PERCPU to alloc_workqueue users
Date: Wed, 24 Dec 2025 15:47:08 +0100 [thread overview]
Message-ID: <20251224144708.61167-5-marco.crivellari@suse.com> (raw)
In-Reply-To: <20251224144708.61167-1-marco.crivellari@suse.com>
This continues the effort to refactor workqueue APIs, which began with
the introduction of new workqueues and a new alloc_workqueue flag in:
commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq")
commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag")
The refactoring is going to alter the default behavior of
alloc_workqueue() to be unbound by default.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU. For more details see the Link tag below.
In order to keep alloc_workqueue() behavior identical, explicitly request
WQ_PERCPU.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
---
drivers/gpu/drm/radeon/radeon_display.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 35fb99bcd9a7..99a3e4c480c1 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -685,7 +685,8 @@ static void radeon_crtc_init(struct drm_device *dev, int index)
if (radeon_crtc == NULL)
return;
- radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0);
+ radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc",
+ WQ_HIGHPRI | WQ_PERCPU, 0);
if (!radeon_crtc->flip_queue) {
kfree(radeon_crtc);
return;
--
2.52.0
next prev parent reply other threads:[~2025-12-24 14:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-24 14:47 [PATCH v3 0/4] Replace old wq name and add WQ_PERCPU and WQ_UNBOUND " Marco Crivellari
2025-12-24 14:47 ` [PATCH v3 1/4] drm/amdgpu: replace use of system_unbound_wq with system_dfl_wq Marco Crivellari
2026-03-31 14:55 ` Alex Deucher
2026-03-31 14:56 ` Marco Crivellari
2025-12-24 14:47 ` [PATCH v3 2/4] drm/amdgpu: replace use of system_wq " Marco Crivellari
2025-12-24 14:47 ` [PATCH v3 3/4] amd/amdkfd: add WQ_UNBOUND to alloc_workqueue users Marco Crivellari
2025-12-24 14:47 ` Marco Crivellari [this message]
2026-03-31 14:49 ` [PATCH v3 4/4] drm/radeon: add WQ_PERCPU " Alex Deucher
2026-02-04 16:23 ` [PATCH v3 0/4] Replace old wq name and add WQ_PERCPU and WQ_UNBOUND " Marco Crivellari
2026-02-23 8:52 ` Marco Crivellari
2026-02-23 10:51 ` Christian König
2026-03-13 14:30 ` Marco Crivellari
2026-03-31 10:39 ` Marco Crivellari
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