// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2020 NXP * * File containing client-side RPC functions for the RM service. These * function are ported to clients that communicate to the SC. */ #include <linux/firmware/imx/svc/rm.h> struct imx_sc_msg_rm_rsrc_owned { struct imx_sc_rpc_msg hdr; u16 resource; } __packed __aligned(4); /* * This function check @resource is owned by current partition or not * * @param[in] ipc IPC handle * @param[in] resource resource the control is associated with * * @return Returns 0 for not owned and 1 for owned. */ bool imx_sc_rm_is_resource_owned(struct imx_sc_ipc *ipc, u16 resource) { struct imx_sc_msg_rm_rsrc_owned msg; struct imx_sc_rpc_msg *hdr = &msg.hdr; hdr->ver = IMX_SC_RPC_VERSION; hdr->svc = IMX_SC_RPC_SVC_RM; hdr->func = IMX_SC_RM_FUNC_IS_RESOURCE_OWNED; hdr->size = 2; msg.resource = resource; /* * SCU firmware only returns value 0 or 1 * for resource owned check which means not owned or owned. * So it is always successful. */ imx_scu_call_rpc(ipc, &msg, true); return hdr->func; } EXPORT_SYMBOL(imx_sc_rm_is_resource_owned);