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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012-2017 Advanced Micro Devices, Inc.
* Copyright (C) 2014 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.
*/
#include <cbmem.h>
#include <stage_cache.h>
#include <mrc_cache.h>
#include <console/console.h>
#include <amdblocks/s3_resume.h>
/* Training data versioning is not supported or tracked. */
#define DEFAULT_MRC_VERSION 0
void get_s3nv_info(void **base, size_t *size)
{
struct region_device rdev;
if (mrc_cache_get_current(MRC_TRAINING_DATA, DEFAULT_MRC_VERSION,
&rdev)) {
printk(BIOS_ERR, "mrc_cache_get_current returned error\n");
return;
}
*base = rdev_mmap_full(&rdev);
*size = region_device_sz(&rdev);
if (!*base || !*size)
printk(BIOS_ERR, "Error: S3 NV data not found\n");
else
printk(BIOS_SPEW, "S3 NV data @0x%p 0x%0zx total bytes\n",
*base, *size);
}
void get_s3vol_info(void **base, size_t *size)
{
stage_cache_get_raw(STAGE_S3_DATA, base, size);
if (!*base || !*size)
printk(BIOS_ERR, "Error: S3 volatile data not found\n");
else
printk(BIOS_SPEW, "S3 volatile data @0x%p 0x%0zx total bytes\n",
*base, *size);
}
int save_s3_info(void *nv_base, size_t nv_size, void *vol_base, size_t vol_size)
{
if (mrc_cache_stash_data(MRC_TRAINING_DATA, DEFAULT_MRC_VERSION,
nv_base, nv_size) < 0) {
printk(BIOS_ERR, "Failed to stash MRC data\n");
return -1;
}
stage_cache_add_raw(STAGE_S3_DATA, vol_base, vol_size);
return 0;
}
|
