146b1fe92SAndrew Turner /*- 246b1fe92SAndrew Turner * Copyright (c) 2013, 2014 Robin Randhawa 346b1fe92SAndrew Turner * All rights reserved. 446b1fe92SAndrew Turner * 546b1fe92SAndrew Turner * Redistribution and use in source and binary forms, with or without 646b1fe92SAndrew Turner * modification, are permitted provided that the following conditions 746b1fe92SAndrew Turner * are met: 846b1fe92SAndrew Turner * 1. Redistributions of source code must retain the above copyright 946b1fe92SAndrew Turner * notice, this list of conditions and the following disclaimer. 1046b1fe92SAndrew Turner * 2. Redistributions in binary form must reproduce the above copyright 1146b1fe92SAndrew Turner * notice, this list of conditions and the following disclaimer in the 1246b1fe92SAndrew Turner * documentation and/or other materials provided with the distribution. 1346b1fe92SAndrew Turner * 1446b1fe92SAndrew Turner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1546b1fe92SAndrew Turner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1646b1fe92SAndrew Turner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1746b1fe92SAndrew Turner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1846b1fe92SAndrew Turner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1946b1fe92SAndrew Turner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2046b1fe92SAndrew Turner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2146b1fe92SAndrew Turner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2246b1fe92SAndrew Turner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2346b1fe92SAndrew Turner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2446b1fe92SAndrew Turner * SUCH DAMAGE. 2546b1fe92SAndrew Turner * 2646b1fe92SAndrew Turner * $FreeBSD$ 2746b1fe92SAndrew Turner */ 2846b1fe92SAndrew Turner 2946b1fe92SAndrew Turner #ifndef _MACHINE_PSCI_H_ 3046b1fe92SAndrew Turner #define _MACHINE_PSCI_H_ 3146b1fe92SAndrew Turner 3246b1fe92SAndrew Turner #include <sys/types.h> 3346b1fe92SAndrew Turner 34*91e44013SMichal Meloun typedef int (*psci_initfn_t)(device_t dev, int default_version); 3546b1fe92SAndrew Turner typedef int (*psci_callfn_t)(register_t, register_t, register_t, register_t); 3646b1fe92SAndrew Turner 3746b1fe92SAndrew Turner extern int psci_present; 3846b1fe92SAndrew Turner 3946b1fe92SAndrew Turner int psci_cpu_on(unsigned long, unsigned long, unsigned long); 405add8393SAndrew Turner void psci_reset(void); 415add8393SAndrew Turner int32_t psci_features(uint32_t); 425add8393SAndrew Turner int psci_get_version(void); 435add8393SAndrew Turner 449e8cb3d2SAndrew Turner /* Handler to let us call into the PSCI/SMCCC firmware */ 459e8cb3d2SAndrew Turner extern psci_callfn_t psci_callfn; 469e8cb3d2SAndrew Turner static inline int 479e8cb3d2SAndrew Turner psci_call(register_t a, register_t b, register_t c, register_t d) 489e8cb3d2SAndrew Turner { 499e8cb3d2SAndrew Turner 509e8cb3d2SAndrew Turner return (psci_callfn(a, b, c, d)); 519e8cb3d2SAndrew Turner } 525add8393SAndrew Turner /* One of these handlers will be selected during the boot */ 5346b1fe92SAndrew Turner int psci_hvc_despatch(register_t, register_t, register_t, register_t); 5446b1fe92SAndrew Turner int psci_smc_despatch(register_t, register_t, register_t, register_t); 5546b1fe92SAndrew Turner 5646b1fe92SAndrew Turner 5746b1fe92SAndrew Turner /* 5846b1fe92SAndrew Turner * PSCI return codes. 5946b1fe92SAndrew Turner */ 6046b1fe92SAndrew Turner #define PSCI_RETVAL_SUCCESS 0 6146b1fe92SAndrew Turner #define PSCI_RETVAL_NOT_SUPPORTED -1 6246b1fe92SAndrew Turner #define PSCI_RETVAL_INVALID_PARAMS -2 6346b1fe92SAndrew Turner #define PSCI_RETVAL_DENIED -3 6446b1fe92SAndrew Turner #define PSCI_RETVAL_ALREADY_ON -4 6546b1fe92SAndrew Turner #define PSCI_RETVAL_ON_PENDING -5 6646b1fe92SAndrew Turner #define PSCI_RETVAL_INTERNAL_FAILURE -6 6746b1fe92SAndrew Turner #define PSCI_RETVAL_NOT_PRESENT -7 6846b1fe92SAndrew Turner #define PSCI_RETVAL_DISABLED -8 69c2dd354bSAndrew Turner /* 70c2dd354bSAndrew Turner * Used to signal PSCI is not available, e.g. to start a CPU. 71c2dd354bSAndrew Turner */ 72c2dd354bSAndrew Turner #define PSCI_MISSING 1 7346b1fe92SAndrew Turner 7446b1fe92SAndrew Turner /* 7546b1fe92SAndrew Turner * PSCI function codes (as per PSCI v0.2). 7646b1fe92SAndrew Turner */ 7746b1fe92SAndrew Turner #ifdef __aarch64__ 7846b1fe92SAndrew Turner #define PSCI_FNID_VERSION 0x84000000 7946b1fe92SAndrew Turner #define PSCI_FNID_CPU_SUSPEND 0xc4000001 8046b1fe92SAndrew Turner #define PSCI_FNID_CPU_OFF 0x84000002 8146b1fe92SAndrew Turner #define PSCI_FNID_CPU_ON 0xc4000003 8246b1fe92SAndrew Turner #define PSCI_FNID_AFFINITY_INFO 0xc4000004 8346b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE 0xc4000005 8446b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE_INFO_TYPE 0x84000006 8546b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE_INFO_UP_CPU 0xc4000007 8646b1fe92SAndrew Turner #define PSCI_FNID_SYSTEM_OFF 0x84000008 8746b1fe92SAndrew Turner #define PSCI_FNID_SYSTEM_RESET 0x84000009 88811880f2SAndrew Turner #define PSCI_FNID_FEATURES 0x8400000a 8946b1fe92SAndrew Turner #else 9046b1fe92SAndrew Turner #define PSCI_FNID_VERSION 0x84000000 9146b1fe92SAndrew Turner #define PSCI_FNID_CPU_SUSPEND 0x84000001 9246b1fe92SAndrew Turner #define PSCI_FNID_CPU_OFF 0x84000002 9346b1fe92SAndrew Turner #define PSCI_FNID_CPU_ON 0x84000003 9446b1fe92SAndrew Turner #define PSCI_FNID_AFFINITY_INFO 0x84000004 9546b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE 0x84000005 9646b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE_INFO_TYPE 0x84000006 9746b1fe92SAndrew Turner #define PSCI_FNID_MIGRATE_INFO_UP_CPU 0x84000007 9846b1fe92SAndrew Turner #define PSCI_FNID_SYSTEM_OFF 0x84000008 9946b1fe92SAndrew Turner #define PSCI_FNID_SYSTEM_RESET 0x84000009 100811880f2SAndrew Turner #define PSCI_FNID_FEATURES 0x8400000a 10146b1fe92SAndrew Turner #endif 10246b1fe92SAndrew Turner 10346b1fe92SAndrew Turner #define PSCI_VER_MAJOR(v) (((v) >> 16) & 0xFF) 10446b1fe92SAndrew Turner #define PSCI_VER_MINOR(v) ((v) & 0xFF) 10546b1fe92SAndrew Turner 10646b1fe92SAndrew Turner enum psci_fn { 10746b1fe92SAndrew Turner PSCI_FN_VERSION, 10846b1fe92SAndrew Turner PSCI_FN_CPU_SUSPEND, 10946b1fe92SAndrew Turner PSCI_FN_CPU_OFF, 11046b1fe92SAndrew Turner PSCI_FN_CPU_ON, 11146b1fe92SAndrew Turner PSCI_FN_AFFINITY_INFO, 11246b1fe92SAndrew Turner PSCI_FN_MIGRATE, 11346b1fe92SAndrew Turner PSCI_FN_MIGRATE_INFO_TYPE, 11446b1fe92SAndrew Turner PSCI_FN_MIGRATE_INFO_UP_CPU, 11546b1fe92SAndrew Turner PSCI_FN_SYSTEM_OFF, 11646b1fe92SAndrew Turner PSCI_FN_SYSTEM_RESET, 11746b1fe92SAndrew Turner PSCI_FN_MAX 11846b1fe92SAndrew Turner }; 11946b1fe92SAndrew Turner 12046b1fe92SAndrew Turner #endif /* _MACHINE_PSCI_H_ */ 121