diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gvt.h')
-rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 2ff0d40281a9..de2a3a2580be 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -170,12 +170,18 @@ struct intel_vgpu_submission { struct intel_vgpu { struct intel_gvt *gvt; + struct mutex vgpu_lock; int id; unsigned long handle; /* vGPU handle used by hypervisor MPT modules */ bool active; bool pv_notified; bool failsafe; unsigned int resetting_eng; + + /* Both sched_data and sched_ctl can be seen a part of the global gvt + * scheduler structure. So below 2 vgpu data are protected + * by sched_lock, not vgpu_lock. + */ void *sched_data; struct vgpu_sched_ctl sched_ctl; @@ -294,7 +300,13 @@ struct intel_vgpu_type { }; struct intel_gvt { + /* GVT scope lock, protect GVT itself, and all resource currently + * not yet protected by special locks(vgpu and scheduler lock). + */ struct mutex lock; + /* scheduler scope lock, protect gvt and vgpu schedule related data */ + struct mutex sched_lock; + struct drm_i915_private *dev_priv; struct idr vgpu_idr; /* vGPU IDR pool */ @@ -314,6 +326,10 @@ struct intel_gvt { struct task_struct *service_thread; wait_queue_head_t service_thread_wq; + + /* service_request is always used in bit operation, we should always + * use it with atomic bit ops so that no need to use gvt big lock. + */ unsigned long service_request; struct { |