1 /* 2 * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <debug.h> 8 #include <hisi_sip_svc.h> 9 #include <pmf.h> 10 #include <runtime_svc.h> 11 #include <stdint.h> 12 #include <uuid.h> 13 14 15 /* Hisi SiP Service UUID */ 16 DEFINE_SVC_UUID(hisi_sip_svc_uid, 17 0xe599df74, 0x7682, 0x40aa, 0x9f, 0xf8, 18 0xc0, 0x85, 0x52, 0xbc, 0x39, 0x3f); 19 20 static int hisi_sip_setup(void) 21 { 22 if (pmf_setup() != 0) 23 return 1; 24 return 0; 25 } 26 27 /* 28 * This function handles Hisi defined SiP Calls 29 */ 30 static uintptr_t hisi_sip_handler(unsigned int smc_fid, 31 u_register_t x1, 32 u_register_t x2, 33 u_register_t x3, 34 u_register_t x4, 35 void *cookie, 36 void *handle, 37 u_register_t flags) 38 { 39 int call_count = 0; 40 41 /* 42 * Dispatch PMF calls to PMF SMC handler and return its return 43 * value 44 */ 45 if (is_pmf_fid(smc_fid)) { 46 return pmf_smc_handler(smc_fid, x1, x2, x3, x4, cookie, 47 handle, flags); 48 } 49 50 switch (smc_fid) { 51 case HISI_SIP_SVC_CALL_COUNT: 52 /* PMF calls */ 53 call_count += PMF_NUM_SMC_CALLS; 54 55 /* State switch call */ 56 call_count += 1; 57 58 SMC_RET1(handle, call_count); 59 60 case HISI_SIP_SVC_UID: 61 /* Return UID to the caller */ 62 SMC_UUID_RET(handle, hisi_sip_svc_uid); 63 64 case HISI_SIP_SVC_VERSION: 65 /* Return the version of current implementation */ 66 SMC_RET2(handle, HISI_SIP_SVC_VERSION_MAJOR, HISI_SIP_SVC_VERSION_MINOR); 67 68 default: 69 WARN("Unimplemented HISI SiP Service Call: 0x%x \n", smc_fid); 70 SMC_RET1(handle, SMC_UNK); 71 } 72 73 } 74 75 76 /* Define a runtime service descriptor for fast SMC calls */ 77 DECLARE_RT_SVC( 78 hisi_sip_svc, 79 OEN_SIP_START, 80 OEN_SIP_END, 81 SMC_TYPE_FAST, 82 hisi_sip_setup, 83 hisi_sip_handler 84 ); 85
