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Diffstat (limited to 'sys/dev/psci/psci.h')
| -rw-r--r-- | sys/dev/psci/psci.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/dev/psci/psci.h b/sys/dev/psci/psci.h new file mode 100644 index 0000000..58f1e79 --- /dev/null +++ b/sys/dev/psci/psci.h @@ -0,0 +1,102 @@ +/*- + * 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 + +/* + * 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_ */ |
