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Commit b35f34d1 authored by Ping Gao's avatar Ping Gao Committed by Zhenyu Wang
Browse files

drm/i915/gvt: control the scheduler by timeslice usage 



The timeslice usage will determine vGPU whether has chance to
schedule or not at every vGPU switch checkpoint.

Signed-off-by: default avatarPing Gao <ping.a.gao@intel.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent afe04fbe

drivers/gpu/drm/i915/gvt/sched_policy.c

+7 −2
Original line number Diff line number Diff line
@@ -187,9 +187,12 @@ static struct intel_vgpu *find_busy_vgpu(struct gvt_sched_data *sched_data) 
		if (!vgpu_has_pending_workload(vgpu_data->vgpu))

			continue;



		/* Return the vGPU only if it has time slice left */

		if (vgpu_data->left_ts > 0) {

			vgpu = vgpu_data->vgpu;

			break;

		}

	}



	return vgpu;

}
@@ -223,6 +226,8 @@ static void tbs_sched_func(struct gvt_sched_data *sched_data) 
				&sched_data->lru_runq_head);



		gvt_dbg_sched("pick next vgpu %d\n", vgpu->id);

	} else {

		scheduler->next_vgpu = gvt->idle_vgpu;

	}

out:

	if (scheduler->next_vgpu) {