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Commit a37cfa8b authored by Bhaktipriya Shridhar's avatar Bhaktipriya Shridhar Committed by Alex Deucher
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drm/radeon: Remove deprecated create_singlethread_workqueue 



alloc_workqueue replaces deprecated create_singlethread_workqueue().

Each hardware CRTC has a single flip work queue.
When a radeon_flip_work_func item is queued, it needs to be executed
ASAP because even a slight delay may cause the flip to be delayed by
one refresh cycle.

Hence, a dedicated workqueue with WQ_HIGHPRI set, has been used here
since a delay can cause the outcome to miss the refresh cycle.

Since there are only a fixed number of work items, explicit concurrency
limit is unnecessary here.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarBhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 63edf1b4

drivers/gpu/drm/radeon/radeon_display.c

+1 −1
Original line number Diff line number Diff line
@@ -714,7 +714,7 @@ static void radeon_crtc_init(struct drm_device *dev, int index) 


	drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);

	radeon_crtc->crtc_id = index;

	radeon_crtc->flip_queue = create_singlethread_workqueue("radeon-crtc");

	radeon_crtc->flip_queue = alloc_workqueue("radeon-crtc", WQ_HIGHPRI, 0);

	rdev->mode_info.crtcs[index] = radeon_crtc;



	if (rdev->family >= CHIP_BONAIRE) {