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| author |   Changbin Du <changbin.du@intel.com> | 2017-11-29 15:40:07 +0800 |
|---|---|---|
| committer |   Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-12-04 11:24:35 +0800 |
| commit | c130456cefd4cf9531f12f3e9b23805d34706ac0 (patch) | |
| tree | 46229a9e9a16cc6c77f364ebc5ba188e49721ea2 /drivers/gpu/drm/i915/gvt/scheduler.c | |
| parent | drm/i915/gvt: Convert macro queue_workload to a function (diff) | |
| download | linux-dev-c130456cefd4cf9531f12f3e9b23805d34706ac0.tar.xz linux-dev-c130456cefd4cf9531f12f3e9b23805d34706ac0.zip | |
drm/i915/gvt: Kick scheduler when new workload queued
The current schedule policy rely on a 1ms timer to execute workload. This
can introduce maximum 1ms unnecessary latency. This is especially bad for
small media workloads.
And I don't think we need this timer for QoS, but the change is not simply
remove the code. So I made a new API intel_gvt_kick_schedule() for future
change.
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/scheduler.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/scheduler.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index abf71be092f8..76d2812f2f03 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -1337,5 +1337,6 @@ void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload) { list_add_tail(&workload->list, workload_q_head(workload->vgpu, workload->ring_id)); + intel_gvt_kick_schedule(workload->vgpu->gvt); wake_up(&workload->vgpu->gvt->scheduler.waitq[workload->ring_id]); } |