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/* SPDX-License-Identifier: MIT */
/*
* Copyright (c) 2013-2014 Google Inc. All rights reserved
*
* Trusty and TF-A also have a copy of this header.
* Please keep the copies in sync.
*/
#ifndef __LINUX_TRUSTY_SMCALL_H
#define __LINUX_TRUSTY_SMCALL_H
#define SMC_NUM_ENTITIES 64
#define SMC_NUM_ARGS 4
#define SMC_NUM_PARAMS (SMC_NUM_ARGS - 1)
#define SMC_IS_FASTCALL(smc_nr) ((smc_nr) & 0x80000000)
#define SMC_IS_SMC64(smc_nr) ((smc_nr) & 0x40000000)
#define SMC_ENTITY(smc_nr) (((smc_nr) & 0x3F000000) >> 24)
#define SMC_FUNCTION(smc_nr) ((smc_nr) & 0x0000FFFF)
#define SMC_NR(entity, fn, fastcall, smc64) ((((fastcall) & 0x1U) << 31) | \
(((smc64) & 0x1U) << 30) | \
(((entity) & 0x3FU) << 24) | \
((fn) & 0xFFFFU) \
)
#define SMC_FASTCALL_NR(entity, fn) SMC_NR((entity), (fn), 1, 0)
#define SMC_STDCALL_NR(entity, fn) SMC_NR((entity), (fn), 0, 0)
#define SMC_FASTCALL64_NR(entity, fn) SMC_NR((entity), (fn), 1, 1)
#define SMC_STDCALL64_NR(entity, fn) SMC_NR((entity), (fn), 0, 1)
#define SMC_ENTITY_ARCH 0 /* ARM Architecture calls */
#define SMC_ENTITY_CPU 1 /* CPU Service calls */
#define SMC_ENTITY_SIP 2 /* SIP Service calls */
#define SMC_ENTITY_OEM 3 /* OEM Service calls */
#define SMC_ENTITY_STD 4 /* Standard Service calls */
#define SMC_ENTITY_RESERVED 5 /* Reserved for future use */
#define SMC_ENTITY_TRUSTED_APP 48 /* Trusted Application calls */
#define SMC_ENTITY_TRUSTED_OS 50 /* Trusted OS calls */
#define SMC_ENTITY_LOGGING 51 /* Used for secure -> nonsecure logging */
#define SMC_ENTITY_TEST 52 /* Used for secure -> nonsecure tests */
#define SMC_ENTITY_SECURE_MONITOR 60 /* Trusted OS calls internal to secure monitor */
/* FC = Fast call, SC = Standard call */
#define SMC_SC_RESTART_LAST SMC_STDCALL_NR(SMC_ENTITY_SECURE_MONITOR, 0)
#define SMC_SC_LOCKED_NOP SMC_STDCALL_NR(SMC_ENTITY_SECURE_MONITOR, 1)
/**
* SMC_SC_RESTART_FIQ - Re-enter trusty after it was interrupted by an fiq
*
* No arguments, no return value.
*
* Re-enter trusty after returning to ns to process an fiq. Must be called iff
* trusty returns SM_ERR_FIQ_INTERRUPTED.
*
* Enable by selecting api version TRUSTY_API_VERSION_RESTART_FIQ (1) or later.
*/
#define SMC_SC_RESTART_FIQ SMC_STDCALL_NR(SMC_ENTITY_SECURE_MONITOR, 2)
/**
* SMC_SC_NOP - Enter trusty to run pending work.
*
* No arguments.
*
* Returns SM_ERR_NOP_INTERRUPTED or SM_ERR_NOP_DONE.
* If SM_ERR_NOP_INTERRUPTED is returned, the call must be repeated.
*
* Enable by selecting api version TRUSTY_API_VERSION_SMP (2) or later.
*/
#define SMC_SC_NOP SMC_STDCALL_NR(SMC_ENTITY_SECURE_MONITOR, 3)
/*
* Return from secure os to non-secure os with return value in r1
*/
#define SMC_SC_NS_RETURN SMC_STDCALL_NR(SMC_ENTITY_SECURE_MONITOR, 0)
#define SMC_FC_RESERVED SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 0)
#define SMC_FC_FIQ_EXIT SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 1)
#define SMC_FC_REQUEST_FIQ SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 2)
#define TRUSTY_IRQ_TYPE_NORMAL (0)
#define TRUSTY_IRQ_TYPE_PER_CPU (1)
#define TRUSTY_IRQ_TYPE_DOORBELL (2)
#define SMC_FC_GET_NEXT_IRQ SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 3)
#define SMC_FC_CPU_SUSPEND SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 7)
#define SMC_FC_CPU_RESUME SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 8)
#define SMC_FC_AARCH_SWITCH SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 9)
#define SMC_FC_GET_VERSION_STR SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 10)
/**
* SMC_FC_API_VERSION - Find and select supported API version.
*
* @r1: Version supported by client.
*
* Returns version supported by trusty.
*
* If multiple versions are supported, the client should start by calling
* SMC_FC_API_VERSION with the largest version it supports. Trusty will then
* return a version it supports. If the client does not support the version
* returned by trusty and the version returned is less than the version
* requested, repeat the call with the largest supported version less than the
* last returned version.
*
* This call must be made before any calls that are affected by the api version.
*/
#define TRUSTY_API_VERSION_RESTART_FIQ (1)
#define TRUSTY_API_VERSION_SMP (2)
#define TRUSTY_API_VERSION_SMP_NOP (3)
#define TRUSTY_API_VERSION_PHYS_MEM_OBJ (4)
#define TRUSTY_API_VERSION_MEM_OBJ (5)
#define TRUSTY_API_VERSION_CURRENT (5)
#define SMC_FC_API_VERSION SMC_FASTCALL_NR(SMC_ENTITY_SECURE_MONITOR, 11)
/* TRUSTED_OS entity calls */
#define SMC_SC_VIRTIO_GET_DESCR SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 20)
#define SMC_SC_VIRTIO_START SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 21)
#define SMC_SC_VIRTIO_STOP SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 22)
#define SMC_SC_VDEV_RESET SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 23)
#define SMC_SC_VDEV_KICK_VQ SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 24)
#define SMC_NC_VDEV_KICK_VQ SMC_STDCALL_NR(SMC_ENTITY_TRUSTED_OS, 25)
#endif /* __LINUX_TRUSTY_SMCALL_H */
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