11d333e69SMichal Simek /* 21d333e69SMichal Simek * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. 31d333e69SMichal Simek * Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved. 41d333e69SMichal Simek * Copyright (C) 2022, Advanced Micro Devices, Inc. All rights reserved. 51d333e69SMichal Simek * 61d333e69SMichal Simek * SPDX-License-Identifier: BSD-3-Clause 71d333e69SMichal Simek */ 81d333e69SMichal Simek 91d333e69SMichal Simek /* Top level SMC handler for SiP calls. Dispatch PM calls to PM SMC handler. */ 101d333e69SMichal Simek 11*8529c769SMichal Simek #include <errno.h> 12*8529c769SMichal Simek 131d333e69SMichal Simek #include <common/debug.h> 141d333e69SMichal Simek #include <common/runtime_svc.h> 151d333e69SMichal Simek #include <tools_share/uuid.h> 161d333e69SMichal Simek 17*8529c769SMichal Simek #include "plat_private.h" 18*8529c769SMichal Simek #include "pm_svc_main.h" 19*8529c769SMichal Simek 201d333e69SMichal Simek /* SMC function IDs for SiP Service queries */ 211d333e69SMichal Simek #define VERSAL_NET_SIP_SVC_CALL_COUNT (0x8200ff00U) 221d333e69SMichal Simek #define VERSAL_NET_SIP_SVC_UID (0x8200ff01U) 231d333e69SMichal Simek #define VERSAL_NET_SIP_SVC_VERSION (0x8200ff03U) 241d333e69SMichal Simek 251d333e69SMichal Simek /* SiP Service Calls version numbers */ 261d333e69SMichal Simek #define SIP_SVC_VERSION_MAJOR (0U) 271d333e69SMichal Simek #define SIP_SVC_VERSION_MINOR (1U) 281d333e69SMichal Simek 291d333e69SMichal Simek /* SiP Service UUID */ 301d333e69SMichal Simek DEFINE_SVC_UUID2(versal_net_sip_uuid, 311d333e69SMichal Simek 0x80d4c25a, 0xebaf, 0x11eb, 0x94, 0x68, 321d333e69SMichal Simek 0x0b, 0x4e, 0x3b, 0x8f, 0xc3, 0x60); 331d333e69SMichal Simek 341d333e69SMichal Simek /** 351d333e69SMichal Simek * sip_svc_setup() - Setup SiP Service 361d333e69SMichal Simek */ 371d333e69SMichal Simek static int32_t sip_svc_setup(void) 381d333e69SMichal Simek { 39*8529c769SMichal Simek return sip_svc_setup_init(); 401d333e69SMichal Simek } 411d333e69SMichal Simek 421d333e69SMichal Simek /* 431d333e69SMichal Simek * sip_svc_smc_handler() - Top-level SiP Service SMC handler 441d333e69SMichal Simek * 451d333e69SMichal Simek * Handler for all SiP SMC calls. Handles standard SIP requests 461d333e69SMichal Simek * and calls PM SMC handler if the call is for a PM-API function. 471d333e69SMichal Simek */ 481d333e69SMichal Simek static uintptr_t sip_svc_smc_handler(uint32_t smc_fid, 491d333e69SMichal Simek u_register_t x1, 501d333e69SMichal Simek u_register_t x2, 511d333e69SMichal Simek u_register_t x3, 521d333e69SMichal Simek u_register_t x4, 531d333e69SMichal Simek void *cookie, 541d333e69SMichal Simek void *handle, 551d333e69SMichal Simek u_register_t flags) 561d333e69SMichal Simek { 571d333e69SMichal Simek /* Let PM SMC handler deal with PM-related requests */ 581d333e69SMichal Simek switch (smc_fid) { 591d333e69SMichal Simek case VERSAL_NET_SIP_SVC_CALL_COUNT: 601d333e69SMichal Simek /* PM functions + default functions */ 611d333e69SMichal Simek SMC_RET1(handle, 2); 621d333e69SMichal Simek 631d333e69SMichal Simek case VERSAL_NET_SIP_SVC_UID: 641d333e69SMichal Simek SMC_UUID_RET(handle, versal_net_sip_uuid); 651d333e69SMichal Simek 661d333e69SMichal Simek case VERSAL_NET_SIP_SVC_VERSION: 671d333e69SMichal Simek SMC_RET2(handle, SIP_SVC_VERSION_MAJOR, SIP_SVC_VERSION_MINOR); 681d333e69SMichal Simek 691d333e69SMichal Simek default: 701d333e69SMichal Simek WARN("Unimplemented SiP Service Call: 0x%x\n", smc_fid); 711d333e69SMichal Simek SMC_RET1(handle, SMC_UNK); 721d333e69SMichal Simek } 731d333e69SMichal Simek } 741d333e69SMichal Simek 751d333e69SMichal Simek /* Register PM Service Calls as runtime service */ 761d333e69SMichal Simek DECLARE_RT_SVC( 771d333e69SMichal Simek sip_svc, 781d333e69SMichal Simek OEN_SIP_START, 791d333e69SMichal Simek OEN_SIP_END, 801d333e69SMichal Simek SMC_TYPE_FAST, 811d333e69SMichal Simek sip_svc_setup, 821d333e69SMichal Simek sip_svc_smc_handler); 83