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| author | Ping Gao <ping.a.gao@intel.com> | 2017-03-29 19:36:40 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-03-30 08:34:10 +0300 |
| commit | b35f34d1da4e77637869c8041a355da810f69fb6 (patch) | |
| tree | 37a32fee445cb1875e7bd9bccb8a7a525b6af91b | |
| parent | afe04fbe6c522e73d5cc61a6660cce0e78630786 (diff) | |
| download | linux-b35f34d1da4e77637869c8041a355da810f69fb6.tar.xz | |
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: Ping Gao <ping.a.gao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/sched_policy.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c index dd5b38c3e4ed..f84959170674 100644 --- a/drivers/gpu/drm/i915/gvt/sched_policy.c +++ b/drivers/gpu/drm/i915/gvt/sched_policy.c @@ -187,8 +187,11 @@ static struct intel_vgpu *find_busy_vgpu(struct gvt_sched_data *sched_data) if (!vgpu_has_pending_workload(vgpu_data->vgpu)) continue; - vgpu = vgpu_data->vgpu; - break; + /* 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) { |