/*
* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 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.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/
#ifndef __PSCI_H__
#define __PSCI_H__
/*******************************************************************************
* Defines for runtime services func ids
******************************************************************************/
#define PSCI_VERSION 0x84000000
#define PSCI_CPU_SUSPEND_AARCH32 0x84000001
#define PSCI_CPU_SUSPEND_AARCH64 0xc4000001
#define PSCI_CPU_OFF 0x84000002
#define PSCI_CPU_ON_AARCH32 0x84000003
#define PSCI_CPU_ON_AARCH64 0xc4000003
#define PSCI_AFFINITY_INFO_AARCH32 0x84000004
#define PSCI_AFFINITY_INFO_AARCH64 0xc4000004
#define PSCI_MIG_AARCH32 0x84000005
#define PSCI_MIG_AARCH64 0xc4000005
#define PSCI_MIG_INFO_TYPE 0x84000006
#define PSCI_MIG_INFO_UP_CPU_AARCH32 0x84000007
#define PSCI_MIG_INFO_UP_CPU_AARCH64 0xc4000007
#define PSCI_SYSTEM_OFF 0x84000008
#define PSCI_SYSTEM_RESET 0x84000009
/*
* Number of PSCI calls (above) implemented. System off and reset aren't
* implemented as yet
*/
#define PSCI_NUM_CALLS 13
/*******************************************************************************
* PSCI Migrate and friends
******************************************************************************/
#define PSCI_TOS_UP_MIG_CAP 0
#define PSCI_TOS_NOT_UP_MIG_CAP 1
#define PSCI_TOS_NOT_PRESENT_MP 2
/*******************************************************************************
* PSCI CPU_SUSPEND 'power_state' parameter specific defines
******************************************************************************/
#define PSTATE_ID_SHIFT 0
#define PSTATE_TYPE_SHIFT 16
#define PSTATE_AFF_LVL_SHIFT 24
#define PSTATE_ID_MASK 0xffff
#define PSTATE_TYPE_MASK 0x1
#define PSTATE_AFF_LVL_MASK 0x3
#define PSTATE_VALID_MASK 0xFCFE0000
#define PSTATE_TYPE_STANDBY 0x0
#define PSTATE_TYPE_POWERDOWN 0x1
#define psci_get_pstate_id(pstate) (pstate >> PSTATE_ID_SHIFT) & \
PSTATE_ID_MASK
#define psci_get_pstate_type(pstate) (pstate >> PSTATE_TYPE_SHIFT) & \
PSTATE_TYPE_MASK
#define psci_get_pstate_afflvl(pstate) (pstate >> PSTATE_AFF_LVL_SHIFT) & \
PSTATE_AFF_LVL_MASK
/*******************************************************************************
* PSCI version
******************************************************************************/
#define PSCI_MAJOR_VER (0 << 16)
#define PSCI_MINOR_VER 0x2
/*******************************************************************************
* PSCI error codes
******************************************************************************/
#define PSCI_E_SUCCESS 0
#define PSCI_E_NOT_SUPPORTED -1
#define PSCI_E_INVALID_PARAMS -2
#define PSCI_E_DENIED -3
#define PSCI_E_ALREADY_ON -4
#define PSCI_E_ON_PENDING -5
#define PSCI_E_INTERN_FAIL -6
#define PSCI_E_NOT_PRESENT -7
#define PSCI_E_DISABLED -8
/*******************************************************************************
* PSCI affinity state related constants. An affinity instance could be present
* or absent physically to cater for asymmetric topologies. If present then it
* could in one of the 4 further defined states.
******************************************************************************/
#define PSCI_STATE_SHIFT 1
#define PSCI_STATE_MASK 0xff
#define PSCI_AFF_ABSENT 0x0
#define PSCI_AFF_PRESENT 0x1
#define PSCI_STATE_ON 0x0
#define PSCI_STATE_OFF 0x1
#define PSCI_STATE_ON_PENDING 0x2
#define PSCI_STATE_SUSPEND 0x3
#define PSCI_INVALID_DATA -1
#define get_phys_state(x) (x != PSCI_STATE_ON ? \
PSCI_STATE_OFF : PSCI_STATE_ON)
#define psci_validate_power_state(pstate) (pstate & PSTATE_VALID_MASK)
/* Number of affinity instances whose state this psci imp. can track */
#define PSCI_NUM_AFFS 32ull
#ifndef __ASSEMBLY__
#include <stdint.h>
/*******************************************************************************
* Structure populated by platform specific code to export routines which
* perform common low level pm functions
******************************************************************************/
typedef struct plat_pm_ops {
int (*affinst_standby)(unsigned int);
int (*affinst_on)(unsigned long,
unsigned long,
unsigned long,
unsigned int,
unsigned int);
int (*affinst_off)(unsigned long, unsigned int, unsigned int);
int (*affinst_suspend)(unsigned long,
unsigned long,
unsigned long,
unsigned int,
unsigned int);
int (*affinst_on_finish)(unsigned long, unsigned int, unsigned int);
int (*affinst_suspend_finish)(unsigned long,
unsigned int,
unsigned int);
} plat_pm_ops_t;
/*******************************************************************************
* Optional structure populated by the Secure Payload Dispatcher to be given a
* chance to perform any bookkeeping before PSCI executes a power mgmt.
* operation. It also allows PSCI to determine certain properties of the SP e.g.
* migrate capability etc.
******************************************************************************/
typedef struct spd_pm_ops {
void (*svc_on)(uint64_t target_cpu);
int32_t (*svc_off)(uint64_t __unused);
void (*svc_suspend)(uint64_t power_state);
void (*svc_on_finish)(uint64_t __unused);
void (*svc_suspend_finish)(uint64_t suspend_level);
void (*svc_migrate)(uint64_t __unused1, uint64_t __unused2);
int32_t (*svc_migrate_info)(uint64_t *__unused);
} spd_pm_ops_t;
/*******************************************************************************
* Function & Data prototypes
******************************************************************************/
extern unsigned int psci_version(void);
extern int __psci_cpu_suspend(unsigned int, unsigned long, unsigned long);
extern int __psci_cpu_off(void);
extern int psci_affinity_info(unsigned long, unsigned int);
extern int psci_migrate(unsigned int);
extern unsigned int psci_migrate_info_type(void);
extern unsigned long psci_migrate_info_up_cpu(void);
extern void psci_system_off(void);
extern void psci_system_reset(void);
extern int psci_cpu_on(unsigned long,
unsigned long,
unsigned long);
extern void __dead2 psci_power_down_wfi(void);
extern void psci_aff_on_finish_entry(void);
extern void psci_aff_suspend_finish_entry(void);
extern void psci_register_spd_pm_hook(const spd_pm_ops_t *);
extern int psci_get_suspend_stateid(unsigned long mpidr);
extern int psci_get_suspend_afflvl(unsigned long mpidr);
extern uint64_t psci_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags);
/* PSCI setup function */
extern int32_t psci_setup(void);
#endif /*__ASSEMBLY__*/
#endif /* __PSCI_H__ */
