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.
Signed-off-by: Bhaktipriya Shridhar bhaktipriya96@gmail.com --- Changes in v2: -Used a dedicated work queue with WQ_HIGHPRI
drivers/gpu/drm/radeon/radeon_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 6a41b49..64b246e 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -711,7 +711,7 @@ 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) { -- 2.1.4