linux-imx

/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */

/*

 * Copyright (c) 2015-2019, Linaro Limited

 */

#ifndef OPTEE_SMC_H

#define OPTEE_SMC_H

​

#include <linux/arm-smccc.h>

#include <linux/bitops.h>

​

#define OPTEE_SMC_STD_CALL_VAL(func_num) \

    ARM_SMCCC_CALL_VAL(ARM_SMCCC_STD_CALL, ARM_SMCCC_SMC_32, \

               ARM_SMCCC_OWNER_TRUSTED_OS, (func_num))

#define OPTEE_SMC_FAST_CALL_VAL(func_num) \

    ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_32, \

               ARM_SMCCC_OWNER_TRUSTED_OS, (func_num))

​

/*

 * Function specified by SMC Calling convention.

 */

#define OPTEE_SMC_FUNCID_CALLS_COUNT    0xFF00

#define OPTEE_SMC_CALLS_COUNT \

    ARM_SMCCC_CALL_VAL(OPTEE_SMC_FAST_CALL, SMCCC_SMC_32, \

               SMCCC_OWNER_TRUSTED_OS_END, \

               OPTEE_SMC_FUNCID_CALLS_COUNT)

​

/*

 * Normal cached memory (write-back), shareable for SMP systems and not

 * shareable for UP systems.

 */

#define OPTEE_SMC_SHM_CACHED        1

​

/*

 * a0..a7 is used as register names in the descriptions below, on arm32

 * that translates to r0..r7 and on arm64 to w0..w7. In both cases it's

 * 32-bit registers.

 */

​

/*

 * Function specified by SMC Calling convention

 *

 * Return one of the following UIDs if using API specified in this file

 * without further extentions:

 * 65cb6b93-af0c-4617-8ed6-644a8d1140f8

 * see also OPTEE_SMC_UID_* in optee_msg.h

 */

#define OPTEE_SMC_FUNCID_CALLS_UID OPTEE_MSG_FUNCID_CALLS_UID

#define OPTEE_SMC_CALLS_UID \

    ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_32, \

               ARM_SMCCC_OWNER_TRUSTED_OS_END, \

               OPTEE_SMC_FUNCID_CALLS_UID)

​

/*

 * Function specified by SMC Calling convention

 *

 * Returns 2.0 if using API specified in this file without further extentions.

 * see also OPTEE_MSG_REVISION_* in optee_msg.h

 */

#define OPTEE_SMC_FUNCID_CALLS_REVISION OPTEE_MSG_FUNCID_CALLS_REVISION

#define OPTEE_SMC_CALLS_REVISION \

    ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_32, \

               ARM_SMCCC_OWNER_TRUSTED_OS_END, \

               OPTEE_SMC_FUNCID_CALLS_REVISION)