/* * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include #include #include #include #include #include #include /* Rockchip SiP Service UUID */ DEFINE_SVC_UUID(rk_sip_svc_uid, 0xe86fc7e2, 0x313e, 0x11e6, 0xb7, 0x0d, 0x8f, 0x88, 0xee, 0x74, 0x7b, 0x72); #pragma weak rockchip_plat_sip_handler uint64_t rockchip_plat_sip_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, void *cookie, void *handle, uint64_t flags) { ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); SMC_RET1(handle, SMC_UNK); } /* * This function is responsible for handling all SiP calls from the NS world */ uint64_t sip_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, void *cookie, void *handle, uint64_t flags) { uint32_t ns; /* Determine which security state this SMC originated from */ ns = is_caller_non_secure(flags); if (!ns) SMC_RET1(handle, SMC_UNK); switch (smc_fid) { case SIP_SVC_CALL_COUNT: /* Return the number of Rockchip SiP Service Calls. */ SMC_RET1(handle, RK_COMMON_SIP_NUM_CALLS + RK_PLAT_SIP_NUM_CALLS); case SIP_SVC_UID: /* Return UID to the caller */ SMC_UUID_RET(handle, rk_sip_svc_uid); case SIP_SVC_VERSION: /* Return the version of current implementation */ SMC_RET2(handle, RK_SIP_SVC_VERSION_MAJOR, RK_SIP_SVC_VERSION_MINOR); default: return rockchip_plat_sip_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags); } } /* Define a runtime service descriptor for fast SMC calls */ DECLARE_RT_SVC( rockchip_sip_svc, OEN_SIP_START, OEN_SIP_END, SMC_TYPE_FAST, NULL, sip_smc_handler );