drm/amdgpu:fix random missing of FLR NOTIFY (34a4d2bf) · Commits · 戴 / test

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

+11 −3

Original line number	Diff line number	Diff line
		@@ -282,8 +282,16 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev,
		/* see what event we get */
		r = xgpu_ai_mailbox_rcv_msg(adev, IDH_FLR_NOTIFICATION);

		/* only handle FLR_NOTIFY now */
		if (!r)
		/* sometimes the interrupt is delayed to inject to VM, so under such case
		* the IDH_FLR_NOTIFICATION is overwritten by VF FLR from GIM side, thus
		* above recieve message could be failed, we should schedule the flr_work
		* anyway
		*/
		if (r) {
		DRM_ERROR("FLR_NOTIFICATION is missed\n");
		xgpu_ai_mailbox_send_ack(adev);
		}

		schedule_work(&adev->virt.flr_work);
		}