Commit 3e183e2f authored by Jiange Zhao's avatar Jiange Zhao Committed by Alex Deucher
Browse files

drm/amdgpu: Add MB_REQ_MSG_READY_TO_RESET response when VF get FLR notification. 



When guest received FLR notification from host, it would
lock adapter into reset state. There will be no more
job submission and hardware access after that.

Then it should send a response to host that it has prepared
for host reset.

Signed-off-by: default avatarJiange Zhao <Jiange.Zhao@amd.com>
Signed-off-by: default avatarPeng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: default avatarEmily.Deng <Emily.Deng@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 1d0e622f

drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c

+2 −0
Original line number Diff line number Diff line
@@ -287,6 +287,8 @@ static void xgpu_nv_mailbox_flr_work(struct work_struct *work) 
	amdgpu_virt_fini_data_exchange(adev);

	atomic_set(&adev->in_gpu_reset, 1);



	xgpu_nv_mailbox_trans_msg(adev, IDH_READY_TO_RESET, 0, 0, 0);



	do {

		if (xgpu_nv_mailbox_peek_msg(adev) == IDH_FLR_NOTIFICATION_CMPL)

			goto flr_done;

drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h

+2 −1
Original line number Diff line number Diff line
@@ -38,6 +38,7 @@ enum idh_request { 
	IDH_REQ_GPU_INIT_DATA,



	IDH_LOG_VF_ERROR	= 200,

	IDH_READY_TO_RESET 	= 201,

};



enum idh_event {