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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>
#include <psci.h>
/*******************************************************************************
* The following two data structures hold the generic information to bringup
* a suspended/hotplugged out cpu
******************************************************************************/
typedef struct eret_params {
unsigned long entrypoint;
unsigned long spsr;
} eret_params_t;
typedef struct ns_entry_info {
eret_params_t eret_info;
unsigned long context_id;
unsigned int scr;
unsigned int sctlr;
} ns_entry_info_t;
/*******************************************************************************
* 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 aff_map_node {
unsigned long mpidr;
unsigned short ref_count;
unsigned char state;
unsigned char level;
unsigned int data;
bakery_lock_t lock;
} aff_map_node_t;
typedef struct aff_limits_node {
int min;
int max;
} aff_limits_node_t;
/*******************************************************************************
* This data structure holds secure world context that needs to be preserved
* across cpu_suspend calls which enter the power down state.
******************************************************************************/
typedef struct suspend_context {
unsigned int power_state;
} __aligned(CACHE_WRITEBACK_GRANULE) suspend_context_t;
typedef aff_map_node_t (*mpidr_aff_map_nodes_t[MPIDR_MAX_AFFLVL]);
typedef unsigned int (*afflvl_power_on_finisher_t)(unsigned long,
aff_map_node_t *);
/*******************************************************************************
* Data prototypes
******************************************************************************/
extern suspend_context_t psci_suspend_context[PSCI_NUM_AFFS];
extern ns_entry_info_t psci_ns_entry_info[PSCI_NUM_AFFS];
extern const plat_pm_ops_t *psci_plat_pm_ops;
extern aff_map_node_t psci_aff_map[PSCI_NUM_AFFS];
/*******************************************************************************
* SPD's power management hooks registered with PSCI
******************************************************************************/
extern const spd_pm_ops_t *psci_spd_pm;
/*******************************************************************************
* Function prototypes
******************************************************************************/
/* Private exported functions from psci_common.c */
int get_max_afflvl(void);
unsigned short psci_get_state(aff_map_node_t *node);
unsigned short psci_get_phys_state(aff_map_node_t *node);
void psci_set_state(aff_map_node_t *node, unsigned short state);
void psci_get_ns_entry_info(unsigned int index);
unsigned long mpidr_set_aff_inst(unsigned long, unsigned char, int);
int psci_validate_mpidr(unsigned long, int);
int get_power_on_target_afflvl(unsigned long mpidr);
void psci_afflvl_power_on_finish(unsigned long,
int,
int,
afflvl_power_on_finisher_t *);
int psci_set_ns_entry_info(unsigned int index,
unsigned long entrypoint,
unsigned long context_id);
int psci_check_afflvl_range(int start_afflvl, int end_afflvl);
void psci_acquire_afflvl_locks(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes_t mpidr_nodes);
void psci_release_afflvl_locks(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes_t mpidr_nodes);
/* Private exported functions from psci_setup.c */
int psci_get_aff_map_nodes(unsigned long mpidr,
int start_afflvl,
int end_afflvl,
mpidr_aff_map_nodes_t mpidr_nodes);
aff_map_node_t *psci_get_aff_map_node(unsigned long, int);
/* Private exported functions from psci_affinity_on.c */
int psci_afflvl_on(unsigned long,
unsigned long,
unsigned long,
int,
int);
/* Private exported functions from psci_affinity_off.c */
int psci_afflvl_off(unsigned long, int, int);
/* Private exported functions from psci_affinity_suspend.c */
void psci_set_suspend_power_state(aff_map_node_t *node,
unsigned int power_state);
int psci_get_aff_map_node_suspend_afflvl(aff_map_node_t *node);
int psci_afflvl_suspend(unsigned long,
unsigned long,
unsigned long,
unsigned int,
int,
int);
unsigned int psci_afflvl_suspend_finish(unsigned long, int, int);
#endif /* __PSCI_PRIVATE_H__ */