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
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 coresystems GmbH
* Copyright (C) 2013 Google, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#ifndef _CBMEM_H_
#define _CBMEM_H_
/* Reserve 128k for ACPI and other tables */
#if CONFIG_CONSOLE_CBMEM
#define HIGH_MEMORY_DEF_SIZE ( 256 * 1024 )
#else
#define HIGH_MEMORY_DEF_SIZE ( 128 * 1024 )
#endif
#if CONFIG_HAVE_ACPI_RESUME
#if CONFIG_RELOCATABLE_RAMSTAGE
#define HIGH_MEMORY_SAVE 0
#else
#define HIGH_MEMORY_SAVE (CONFIG_RAMTOP - CONFIG_RAMBASE)
#endif
#define HIGH_MEMORY_SIZE (HIGH_MEMORY_SAVE + CONFIG_HIGH_SCRATCH_MEMORY_SIZE + HIGH_MEMORY_DEF_SIZE)
/* Delegation of resume backup memory so we don't have to
* (slowly) handle backing up OS memory in romstage.c
*/
#define CBMEM_BOOT_MODE 0x610
#define CBMEM_RESUME_BACKUP 0x614
#else /* CONFIG_HAVE_ACPI_RESUME */
#define HIGH_MEMORY_SIZE HIGH_MEMORY_DEF_SIZE
#endif /* CONFIG_HAVE_ACPI_RESUME */
#define CBMEM_ID_FREESPACE 0x46524545
#define CBMEM_ID_GDT 0x4c474454
#define CBMEM_ID_ACPI 0x41435049
#define CBMEM_ID_ACPI_GNVS 0x474e5653
#define CBMEM_ID_CBTABLE 0x43425442
#define CBMEM_ID_PIRQ 0x49525154
#define CBMEM_ID_MPTABLE 0x534d5054
#define CBMEM_ID_RESUME 0x5245534d
#define CBMEM_ID_RESUME_SCRATCH 0x52455343
#define CBMEM_ID_SMBIOS 0x534d4254
#define CBMEM_ID_TIMESTAMP 0x54494d45
#define CBMEM_ID_MRCDATA 0x4d524344
#define CBMEM_ID_CONSOLE 0x434f4e53
#define CBMEM_ID_ELOG 0x454c4f47
#define CBMEM_ID_COVERAGE 0x47434f56
#define CBMEM_ID_ROMSTAGE_INFO 0x47545352
#define CBMEM_ID_ROMSTAGE_RAM_STACK 0x90357ac4
#define CBMEM_ID_RAMSTAGE 0x9a357a9e
#define CBMEM_ID_RAMSTAGE_CACHE 0x9a3ca54e
#define CBMEM_ID_ROOT 0xff4007ff
#define CBMEM_ID_NONE 0x00000000
#ifndef __ASSEMBLER__
#include <stdint.h>
struct cbmem_entry;
#if CONFIG_DYNAMIC_CBMEM
/*
* The dynamic cbmem infrastructure allows for growing cbmem dynamically as
* things are added. It requires an external function, cbmem_top(), to be
* implemented by the board or chipset to define the upper address where
* cbmem lives. This address is required to be a 32-bit address. Additionally,
* the address needs to be consistent in both romstage and ramstage. The
* dynamic cbmem infrasturue allocates new regions below the last allocated
* region. Regions are defined by a cbmem_entry struct that is opaque. Regions
* may be removed, but the last one added is the only that can be removed.
*
* Dynamic cbmem has two allocators within it. All allocators use a top down
* allocation scheme. However, there are 2 modes for each allocation depending
* on the requested size. There are large allocations and small allocations.
* An allocation is considered to be small when it is less than or equal to
* DYN_CBMEM_ALIGN_SIZE / 2. The smaller allocations are fit into a larger
* allocation region.
*/
#define DYN_CBMEM_ALIGN_SIZE (4096)
/* Initialze cbmem to be empty. */
void cbmem_initialize_empty(void);
/* Return the top address for dynamic cbmem. The address returned needs to
* be consistent across romstage and ramstage, and it is required to be
* below 4GiB. */
void *cbmem_top(void);
/* Add a cbmem entry of a given size and id. These return NULL on failure. The
* add function performs a find first and do not check against the original
* size. */
const struct cbmem_entry *cbmem_entry_add(u32 id, u64 size);
/* Find a cbmem entry of a given id. These return NULL on failure. */
const struct cbmem_entry *cbmem_entry_find(u32 id);
/* Remove a region defined by a cbmem_entry. Returns 0 on success, < 0 on
* error. Note: A cbmem_entry cannot be removed unless it was the last one
* added. */
int cbmem_entry_remove(const struct cbmem_entry *entry);
/* cbmem_entry accessors to get pointer and size of a cbmem_entry. */
void *cbmem_entry_start(const struct cbmem_entry *entry);
u64 cbmem_entry_size(const struct cbmem_entry *entry);
#ifndef __PRE_RAM__
/* Add the cbmem memory used to the memory tables. */
struct lb_memory;
void cbmem_add_lb_mem(struct lb_memory *mem);
#endif /* __PRE_RAM__ */
#else /* !CONFIG_DYNAMIC_CBMEM */
#ifndef __PRE_RAM__
extern uint64_t high_tables_base, high_tables_size;
#if CONFIG_EARLY_CBMEM_INIT
/* Return 0 on success, < 0 on error. */
int __attribute__((weak)) cbmem_get_table_location(uint64_t *tables_base,
uint64_t *tables_size);
#endif
void set_cbmem_toc(struct cbmem_entry *);
#endif
void cbmem_init(u64 baseaddr, u64 size);
int cbmem_reinit(u64 baseaddr);
extern struct cbmem_entry *get_cbmem_toc(void);
#endif /* CONFIG_DYNAMIC_CBMEM */
/* Common API between cbmem and dynamic cbmem. */
/* By default cbmem is attempted to be recovered. Returns 0 if cbmem was
* recovered or 1 if cbmem had to be reinitialized. */
int cbmem_initialize(void);
/* Add a cbmem entry of a given size and id. These return NULL on failure. The
* add function performs a find first and do not check against the original
* size. */
void *cbmem_add(u32 id, u64 size);
/* Find a cbmem entry of a given id. These return NULL on failure. */
void *cbmem_find(u32 id);
#ifndef __PRE_RAM__
/* Ramstage only functions. */
void cbmem_list(void);
void cbmem_arch_init(void);
void __attribute__((weak)) cbmem_post_handling(void);
void cbmem_print_entry(int n, u32 id, u64 start, u64 size);
/* The pre|post device cbmem initialization functions are for the
* ramstage main to call. When cbmem is actually initialized depends on
* the cbmem implementation. */
void init_cbmem_pre_device(void);
void init_cbmem_post_device(void);
#else
static inline void cbmem_arch_init(void) {}
#endif /* __PRE_RAM__ */
#endif /* __ASSEMBLER__ */
#endif /* _CBMEM_H_ */
|
