1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/*
* 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__ */
|