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authorJani Nikula <jani.nikula@intel.com>2017-05-15 13:03:30 +0300
committerJani Nikula <jani.nikula@intel.com>2017-05-15 13:03:31 +0300
commit3d72e27a3af88b6f939aa87070c36304f713aa28 (patch)
treee845e1765be80e7f09ed28ab5315f37f34228c7f /drivers/gpu/drm/i915/gvt/sched_policy.c
parent2ea659a9ef488125eb46da6eb571de5eae5c43f6 (diff)
parentae157902aea13926e9596d091cad6bd87b3be084 (diff)
Merge tag 'gvt-fixes-2017-05-11' of https://github.com/01org/gvt-linux into drm-intel-fixes
gvt-fixes-2017-05-11 - vGPU scheduler performance regression fix (Ping) - bypass in-context mmio restore (Chuanxiao) - one typo fix (Colin) Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170511054736.swpcmnzdoqi75cnl@zhen-hp.sh.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/sched_policy.c')
-rw-r--r--drivers/gpu/drm/i915/gvt/sched_policy.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 79ba4b3440aa..f25ff133865f 100644
--- 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