From: Jiange Zhao <[email protected]> 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: Jiange Zhao <[email protected]> Signed-off-by: Peng Ju Zhou <[email protected]> --- drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 2 ++ drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c index b48e68f46a5c..a35e6d87e537 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c @@ -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; diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h index 9f5808616174..73887b0aa1d6 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h @@ -37,7 +37,8 @@ enum idh_request { IDH_REQ_GPU_RESET_ACCESS, IDH_REQ_GPU_INIT_DATA, - IDH_LOG_VF_ERROR = 200, + IDH_LOG_VF_ERROR = 200, + IDH_READY_TO_RESET = 201, }; enum idh_event { -- 2.17.1
