blob: 1b4840e04f338e8857357e0f068bf30c68ebaaee (
plain)
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
|
/*
* This file is part of the coreboot project.
*
*
* 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.
*/
#ifndef _COMMON_MRC_CACHE_H_
#define _COMMON_MRC_CACHE_H_
#include <stddef.h>
#include <stdint.h>
#include <commonlib/region.h>
enum {
MRC_TRAINING_DATA,
MRC_VARIABLE_DATA,
};
/*
* It's up to the caller to decide when to retrieve and stash data. There is
* differentiation on recovery mode CONFIG_HAS_RECOVERY_MRC_CACHE, but that's
* only for locating where to retrieve and save the data. If a platform doesn't
* want to update the data then it shouldn't stash the data for saving.
* Similarly, if the platform doesn't need the data for booting because of a
* policy don't request the data.
*/
/* Get and stash data for saving provided the type passed in. The functions
* return < 0 on error, 0 on success. */
int mrc_cache_get_current(int type, uint32_t version,
struct region_device *rdev);
int mrc_cache_stash_data(int type, uint32_t version, const void *data,
size_t size);
#endif /* _COMMON_MRC_CACHE_H_ */
|
