From 61a669473f82cd5cac66146644b829b370c791ca Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Mon, 15 Jan 2018 16:36:12 +0800 Subject: [PATCH] drm/i915/gvt: cancel scheduler timer when no vGPU exists Stop gvt scheduler timer if no vGPU exists, otherwise it keeps gvt service thread busy to handle request schedule event but no actual schedule activity required. Reviewed-by: Zhi Wang Signed-off-by: Zhenyu Wang Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/i915/gvt/sched_policy.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c index eea1a2f92099..d031f6486ce3 100644 --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -308,8 +308,15 @@ static int tbs_sched_init_vgpu(struct intel_vgpu *vgpu) static void tbs_sched_clean_vgpu(struct intel_vgpu *vgpu) { + struct intel_gvt *gvt = vgpu->gvt; + struct gvt_sched_data *sched_data = gvt->scheduler.sched_data; + kfree(vgpu->sched_data); vgpu->sched_data = NULL; + + /* this vgpu id has been removed */ + if (idr_is_empty(&gvt->vgpu_idr)) + hrtimer_cancel(&sched_data->timer); } static void tbs_sched_start_schedule(struct intel_vgpu *vgpu) -- 2.11.0