[Why]
When host trigger a whole gpu reset, guest will keep
waiting till host finish reset. But there's a work
queue in guest exchanging data between vf&pf which need
to access frame buffer. During whole gpu reset, frame
buffer is not accessable, and this causes the call trace.
[How]
After vf get reset notification from pf, stop data exchange.
Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com>
Reviewed-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
DRM_INFO("clean up the vf2pf work item\n");
flush_delayed_work(&adev->virt.vf2pf_work);
cancel_delayed_work_sync(&adev->virt.vf2pf_work);
+ adev->virt.vf2pf_update_interval_ms = 0;
}
}
if (!down_read_trylock(&adev->reset_sem))
return;
+ amdgpu_virt_fini_data_exchange(adev);
atomic_set(&adev->in_gpu_reset, 1);
do {
if (!down_read_trylock(&adev->reset_sem))
return;
+ amdgpu_virt_fini_data_exchange(adev);
atomic_set(&adev->in_gpu_reset, 1);
do {