iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/gvt: fix dead locking in early workload shadow

Browse Source 
As early workload scan and shadow happens in execlist mmio handler,
which has already taken vgpu_lock. So remove extra lock taking here.

Fixes: 952f89f098c7 ("drm/i915/gvt: Wean off struct_mutex")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Zhenyu Wang 2019-10-23 17:43:27 +08:00 committed by Chris Wilson
parent 058179e72e
commit 8eb8e322ec
1 changed files with 0 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -1584,9 +1584,7 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id,
*/
if (list_empty(workload_q_head(vgpu, ring_id))) {
intel_runtime_pm_get(&dev_priv->runtime_pm);
mutex_lock(&vgpu->vgpu_lock);
ret = intel_gvt_scan_and_shadow_workload(workload);
mutex_unlock(&vgpu->vgpu_lock);
intel_runtime_pm_put_unchecked(&dev_priv->runtime_pm);
}