Merge tag 'gvt-fixes-2017-05-11' of https://github.com/01org/gvt-linux into drm-intel...

[karo-tx-linux.git] / drivers / gpu / drm / i915 / gvt / sched_policy.c

diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 79ba4b3440aafd9537f287028d1e23a6186109a1..f25ff133865f1327936483ac166b97c41e0baa60 100644 (file)
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -129,9 +129,13 @@ static void try_to_schedule_next_vgpu(struct intel_gvt *gvt)
        struct vgpu_sched_data *vgpu_data;
        ktime_t cur_time;
 
-       /* no target to schedule */
-       if (!scheduler->next_vgpu)
+       /* no need to schedule if next_vgpu is the same with current_vgpu,
+        * let scheduler chose next_vgpu again by setting it to NULL.
+        */
+       if (scheduler->next_vgpu == scheduler->current_vgpu) {
+               scheduler->next_vgpu = NULL;
                return;
+       }
 
        /*
         * after the flag is set, workload dispatch thread will