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/*-
* Copyright (c) 2013, 2014 Robin Randhawa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_PSCI_H_
#define _MACHINE_PSCI_H_
#include <sys/types.h>
typedef int (*psci_initfn_t)(device_t dev);
typedef int (*psci_callfn_t)(register_t, register_t, register_t, register_t);
extern int psci_present;
void psci_system_reset(void);
int psci_cpu_on(unsigned long, unsigned long, unsigned long);
int psci_hvc_despatch(register_t, register_t, register_t, register_t);
int psci_smc_despatch(register_t, register_t, register_t, register_t);
/*
* PSCI return codes.
*/
#define PSCI_RETVAL_SUCCESS 0
#define PSCI_RETVAL_NOT_SUPPORTED -1
#define PSCI_RETVAL_INVALID_PARAMS -2
#define PSCI_RETVAL_DENIED -3
#define PSCI_RETVAL_ALREADY_ON -4
#define PSCI_RETVAL_ON_PENDING -5
#define PSCI_RETVAL_INTERNAL_FAILURE -6
#define PSCI_RETVAL_NOT_PRESENT -7
#define PSCI_RETVAL_DISABLED -8
/*
* Used to signal PSCI is not available, e.g. to start a CPU.
*/
#define PSCI_MISSING 1
/*
* PSCI function codes (as per PSCI v0.2).
*/
#ifdef __aarch64__
#define PSCI_FNID_VERSION 0x84000000
#define PSCI_FNID_CPU_SUSPEND 0xc4000001
#define PSCI_FNID_CPU_OFF 0x84000002
#define PSCI_FNID_CPU_ON 0xc4000003
#define PSCI_FNID_AFFINITY_INFO 0xc4000004
#define PSCI_FNID_MIGRATE 0xc4000005
#define PSCI_FNID_MIGRATE_INFO_TYPE 0x84000006
#define PSCI_FNID_MIGRATE_INFO_UP_CPU 0xc4000007
#define PSCI_FNID_SYSTEM_OFF 0x84000008
#define PSCI_FNID_SYSTEM_RESET 0x84000009
#else
#define PSCI_FNID_VERSION 0x84000000
#define PSCI_FNID_CPU_SUSPEND 0x84000001
#define PSCI_FNID_CPU_OFF 0x84000002
#define PSCI_FNID_CPU_ON 0x84000003
#define PSCI_FNID_AFFINITY_INFO 0x84000004
#define PSCI_FNID_MIGRATE 0x84000005
#define PSCI_FNID_MIGRATE_INFO_TYPE 0x84000006
#define PSCI_FNID_MIGRATE_INFO_UP_CPU 0x84000007
#define PSCI_FNID_SYSTEM_OFF 0x84000008
#define PSCI_FNID_SYSTEM_RESET 0x84000009
#endif
#define PSCI_VER_MAJOR(v) (((v) >> 16) & 0xFF)
#define PSCI_VER_MINOR(v) ((v) & 0xFF)
enum psci_fn {
PSCI_FN_VERSION,
PSCI_FN_CPU_SUSPEND,
PSCI_FN_CPU_OFF,
PSCI_FN_CPU_ON,
PSCI_FN_AFFINITY_INFO,
PSCI_FN_MIGRATE,
PSCI_FN_MIGRATE_INFO_TYPE,
PSCI_FN_MIGRATE_INFO_UP_CPU,
PSCI_FN_SYSTEM_OFF,
PSCI_FN_SYSTEM_RESET,
PSCI_FN_MAX
};
#endif /* _MACHINE_PSCI_H_ */
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