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621eaab5cc
Add SiP service for the SMC call from the secure world. Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Signed-off-by: jason-ch chen <Jason-ch.Chen@mediatek.com> Change-Id: I7a5cfaac5c46ea65be793c3d291e4332cc0b2e54
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*
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* Copyright (c) 2022-2023, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef MTK_SIP_SVC_H
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#define MTK_SIP_SVC_H
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#include <stdint.h>
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#include <lib/smccc.h>
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#include <mtk_sip_def.h>
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/* SMC function IDs for SiP Service queries */
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#define SIP_SVC_CALL_COUNT U(0x8200ff00)
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#define SIP_SVC_UID U(0x8200ff01)
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/* 0x8200ff02 is reserved */
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#define SIP_SVC_VERSION U(0x8200ff03)
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/* MediaTek SiP Service Calls version numbers */
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#define MTK_SIP_SVC_VERSION_MAJOR U(0x0)
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#define MTK_SIP_SVC_VERSION_MINOR U(0x1)
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/* Number of MediaTek SiP Calls implemented */
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#define MTK_COMMON_SIP_NUM_CALLS U(4)
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/* MediaTek SiP Service Calls function IDs */
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#define MTK_SIP_SET_AUTHORIZED_SECURE_REG U(0x82000001)
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#define SMC_ID_EXPAND_AS_ENUM(_smc_id, _smc_num) \
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_smc_id##_AARCH32 = ((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) | \
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((0) << FUNCID_CC_SHIFT) | \
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(OEN_SIP_START << FUNCID_OEN_SHIFT) | \
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((_smc_num) << FUNCID_NUM_SHIFT)), \
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_smc_id##_AARCH64 = ((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) | \
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((1) << FUNCID_CC_SHIFT) | \
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(OEN_SIP_START << FUNCID_OEN_SHIFT) | \
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((_smc_num) << FUNCID_NUM_SHIFT)),
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#define SMC_ID_EXPAND_AS_EXTERN_SMC_INDEX(_smc_id, _smc_num) \
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extern short _smc_id##_descriptor_index;
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/* Bind SMC handler with SMC ID */
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#define DECLARE_SMC_HANDLER(_smc_id, _smc_handler) \
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const struct smc_descriptor _smc_id##_descriptor \
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__used \
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__aligned(sizeof(void *)) \
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__section(".mtk_smc_descriptor_pool") = { \
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.smc_handler = _smc_handler, \
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.smc_name = #_smc_id, \
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.smc_id_aarch32 = _smc_id##_AARCH32, \
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.smc_id_aarch64 = _smc_id##_AARCH64, \
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.smc_descriptor_index = &_smc_id##_descriptor_index \
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}
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MTK_SIP_SMC_FROM_BL33_TABLE(SMC_ID_EXPAND_AS_EXTERN_SMC_INDEX);
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MTK_SIP_SMC_FROM_NS_EL1_TABLE(SMC_ID_EXPAND_AS_EXTERN_SMC_INDEX);
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MTK_SIP_SMC_FROM_S_EL1_TABLE(SMC_ID_EXPAND_AS_EXTERN_SMC_INDEX);
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/* Expand SiP SMC ID table as enum */
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enum {
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MTK_SIP_SMC_FROM_BL33_TABLE(SMC_ID_EXPAND_AS_ENUM)
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MTK_SIP_SMC_FROM_NS_EL1_TABLE(SMC_ID_EXPAND_AS_ENUM)
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MTK_SIP_SMC_FROM_S_EL1_TABLE(SMC_ID_EXPAND_AS_ENUM)
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MTK_SIP_SMC_MAX_NUMBER
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};
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/* MediaTek SiP Calls error code */
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enum {
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MTK_SIP_E_SUCCESS = 0,
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MTK_SIP_E_INVALID_PARAM = -1,
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MTK_SIP_E_NOT_SUPPORTED = -2,
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MTK_SIP_E_INVALID_RANGE = -3,
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MTK_SIP_E_PERMISSION_DENY = -4,
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MTK_SIP_E_LOCK_FAIL = -5,
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};
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struct smccc_res {
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uint64_t a1;
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uint64_t a2;
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uint64_t a3;
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};
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typedef uintptr_t (*smc_handler_t)(u_register_t,
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u_register_t,
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u_register_t,
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u_register_t,
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void *,
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struct smccc_res *);
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struct smc_descriptor {
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smc_handler_t smc_handler;
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const uint32_t smc_id_aarch32;
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const uint32_t smc_id_aarch64;
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const char *smc_name;
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short *const smc_descriptor_index;
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};
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/*
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* This function should be implemented in MediaTek SOC directory. It fullfills
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* MTK_SIP_SET_AUTHORIZED_SECURE_REG SiP call by checking the sreg with the
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* predefined secure register list, if a match was found, set val to sreg.
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*
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* Return MTK_SIP_E_SUCCESS on success, and MTK_SIP_E_INVALID_PARAM on failure.
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*/
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uint64_t mt_sip_set_authorized_sreg(uint32_t sreg, uint32_t val);
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#endif /* MTK_SIP_SVC_H */
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