4.10-stable review patch. If anyone has any objections, please let me know.
------------------ From: Zhenyu Wang <[email protected]> commit 2958b9013fcbabeeba221161d0712f5259f1e15d upstream. Fix to correctly assign 1ms for gvt scheduler interval time, as previous code using HZ is pretty broken. And use no delay for start gvt scheduler function. Fixes: 4b63960ebd3f ("drm/i915/gvt: vGPU schedule policy framework") Cc: Zhi Wang <[email protected]> Acked-by: Chuanxiao Dong <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/i915/gvt/sched_policy.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -101,7 +101,7 @@ struct tbs_sched_data { struct list_head runq_head; }; -#define GVT_DEFAULT_TIME_SLICE (1 * HZ / 1000) +#define GVT_DEFAULT_TIME_SLICE (msecs_to_jiffies(1)) static void tbs_sched_func(struct work_struct *work) { @@ -224,7 +224,7 @@ static void tbs_sched_start_schedule(str return; list_add_tail(&vgpu_data->list, &sched_data->runq_head); - schedule_delayed_work(&sched_data->work, sched_data->period); + schedule_delayed_work(&sched_data->work, 0); } static void tbs_sched_stop_schedule(struct intel_vgpu *vgpu)
