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/*
* 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_PRIVATE_H__
#define __PSCI_PRIVATE_H__
#include <arch.h>
#include <bakery_lock.h>
#ifndef __ASSEMBLY__
/*******************************************************************************
* The following two data structures hold the generic information to bringup
* a suspended/hotplugged out cpu
******************************************************************************/
typedef struct {
unsigned long entrypoint;
unsigned long spsr;
} eret_params;
typedef struct {
eret_params eret_info;
unsigned long context_id;
unsigned int scr;
unsigned int sctlr;
} ns_entry_info;
/*******************************************************************************
* The following two data structures hold the topology tree which in turn tracks
* the state of the all the affinity instances supported by the platform.
******************************************************************************/
typedef struct {
unsigned long mpidr;
unsigned short ref_count;
unsigned char state;
unsigned char level;
unsigned int data;
bakery_lock lock;
} aff_map_node;
typedef struct {
int min;
int max;
} aff_limits_node;
/*******************************************************************************
* This data structure holds secure world context that needs to be preserved
* across cpu_suspend calls which enter the power down state.
******************************************************************************/
typedef struct {
/* Align the suspend level to allow per-cpu lockless access */
int suspend_level
__attribute__((__aligned__(CACHE_WRITEBACK_GRANULE)));
} suspend_context;
typedef aff_map_node (*mpidr_aff_map_nodes[MPIDR_MAX_AFFLVL]);
typedef unsigned int (*afflvl_power_on_finisher)(unsigned long,
aff_map_node *);
/*******************************************************************************
* Data prototypes
******************************************************************************/
extern suspend_context psci_suspend_context[PSCI_NUM_AFFS];
extern ns_entry_info psci_ns_entry_info[PSCI_NUM_AFFS];
extern unsigned int psci_ns_einfo_idx;
extern aff_limits_node psci_aff_limits[MPIDR_MAX_AFFLVL + 1];
extern plat_pm_ops *psci_plat_pm_ops;
extern aff_map_node psci_aff_map[PSCI_NUM_AFFS];
extern afflvl_power_on_finisher psci_afflvl_off_finish_handlers[];
extern afflvl_power_on_finisher psci_afflvl_sus_finish_handlers[];
/*******************************************************************************
* Weak declarations to allow PSCI to cope on a system where the Secure Payload
* Dispatcher is missing. An SPD will define this structure when present.
******************************************************************************/
extern const spd_pm_ops spd_pm;
/*******************************************************************************
* Function prototypes
******************************************************************************/
/* Private exported functions from psci_common.c */
extern int get_max_afflvl(void);
extern unsigned short psci_get_state(aff_map_node *node);
extern unsigned short psci_get_phys_state(aff_map_node *node);
extern void psci_set_state(aff_map_node *node, unsigned short state);
extern void psci_get_ns_entry_info(unsigned int index);
extern unsigned long mpidr_set_aff_inst(unsigned long, unsigned char, int);
extern int psci_validate_mpidr(unsigned long, int);
extern int get_power_on_target_afflvl(unsigned long mpidr);
extern void psci_afflvl_power_on_finish(unsigned long,
int,
int,
afflvl_power_on_finisher *);
extern int psci_set_ns_entry_info(unsigned int index,
unsigned long entrypoint,
unsigned long context_id);
extern int psci_check_afflvl_range(int start_afflvl, int end_afflvl);
extern void psci_acquire_afflvl_locks(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes mpidr_nodes);
extern void psci_release_afflvl_locks(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes mpidr_nodes);
/* Private exported functions from psci_setup.c */
extern int psci_get_aff_map_nodes(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes mpidr_nodes);
extern aff_map_node *psci_get_aff_map_node(unsigned long, int);
/* Private exported functions from psci_affinity_on.c */
extern int psci_afflvl_on(unsigned long,
unsigned long,
unsigned long,
int,
int);
/* Private exported functions from psci_affinity_off.c */
extern int psci_afflvl_off(unsigned long, int, int);
/* Private exported functions from psci_affinity_suspend.c */
extern void psci_set_suspend_afflvl(aff_map_node *node, int afflvl);
extern int psci_get_suspend_afflvl(aff_map_node *node);
extern int psci_afflvl_suspend(unsigned long,
unsigned long,
unsigned long,
unsigned int,
int,
int);
extern unsigned int psci_afflvl_suspend_finish(unsigned long, int, int);
/* Private exported functions from psci_main.c */
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);
#endif /*__ASSEMBLY__*/
#endif /* __PSCI_PRIVATE_H__ */
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