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/*
* Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/* Copyright (c) 2014, Linaro Limited. All rights reserved. */
#ifndef TEESMC_OPTEED_H
#define TEESMC_OPTEED_H
/*
* This file specifies SMC function IDs used when returning from TEE to the
* secure monitor.
*
* All SMC Function IDs indicates SMC32 Calling Convention but will carry
* full 64 bit values in the argument registers if invoked from Aarch64
* mode. This violates the SMC Calling Convention, but since this
* convention only coveres API towards Normal World it's something that
* only concerns the OP-TEE Dispatcher in Trusted Firmware-A and OP-TEE
* OS at Secure EL1.
*/
/*
* Issued when returning from initial entry.
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_ENTRY_DONE
* r1/x1 Pointer to entry vector
*/
#define TEESMC_OPTEED_FUNCID_RETURN_ENTRY_DONE 0
#define TEESMC_OPTEED_RETURN_ENTRY_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_ENTRY_DONE)
/*
* Issued when returning from "cpu_on" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_ON_DONE
* r1/x1 0 on success and anything else to indicate error condition
*/
#define TEESMC_OPTEED_FUNCID_RETURN_ON_DONE 1
#define TEESMC_OPTEED_RETURN_ON_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_ON_DONE)
/*
* Issued when returning from "cpu_off" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_OFF_DONE
* r1/x1 0 on success and anything else to indicate error condition
*/
#define TEESMC_OPTEED_FUNCID_RETURN_OFF_DONE 2
#define TEESMC_OPTEED_RETURN_OFF_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_OFF_DONE)
/*
* Issued when returning from "cpu_suspend" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SUSPEND_DONE
* r1/x1 0 on success and anything else to indicate error condition
*/
#define TEESMC_OPTEED_FUNCID_RETURN_SUSPEND_DONE 3
#define TEESMC_OPTEED_RETURN_SUSPEND_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SUSPEND_DONE)
/*
* Issued when returning from "cpu_resume" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_RESUME_DONE
* r1/x1 0 on success and anything else to indicate error condition
*/
#define TEESMC_OPTEED_FUNCID_RETURN_RESUME_DONE 4
#define TEESMC_OPTEED_RETURN_RESUME_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_RESUME_DONE)
/*
* Issued when returning from "std_smc" or "fast_smc" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_CALL_DONE
* r1-4/x1-4 Return value 0-3 which will passed to normal world in
* r0-3/x0-3
*/
#define TEESMC_OPTEED_FUNCID_RETURN_CALL_DONE 5
#define TEESMC_OPTEED_RETURN_CALL_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_CALL_DONE)
/*
* Issued when returning from "fiq" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_FIQ_DONE
*/
#define TEESMC_OPTEED_FUNCID_RETURN_FIQ_DONE 6
#define TEESMC_OPTEED_RETURN_FIQ_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_FIQ_DONE)
/*
* Issued when returning from "system_off" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SYSTEM_OFF_DONE
*/
#define TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_OFF_DONE 7
#define TEESMC_OPTEED_RETURN_SYSTEM_OFF_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_OFF_DONE)
/*
* Issued when returning from "system_reset" vector
*
* Register usage:
* r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SYSTEM_RESET_DONE
*/
#define TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_RESET_DONE 8
#define TEESMC_OPTEED_RETURN_SYSTEM_RESET_DONE \
TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_RESET_DONE)
#endif /*TEESMC_OPTEED_H*/
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