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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <string.h>
#include <acpi/acpi.h>
#include <cbmem.h>
#include <console/console.h>
#include <console/streams.h>
#include <cpu/x86/tsc.h>
#include <program_loading.h>
#include <rmodule.h>
#include <stage_cache.h>
#include <soc/pei_data.h>
#include <soc/pei_wrapper.h>
#include <soc/pm.h>
#include <soc/ramstage.h>
static pei_wrapper_entry_t load_refcode_from_cache(void)
{
struct prog refcode;
printk(BIOS_DEBUG, "refcode loading from cache.\n");
stage_cache_load_stage(STAGE_REFCODE, &refcode);
return (pei_wrapper_entry_t)prog_entry(&refcode);
}
static pei_wrapper_entry_t load_reference_code(void)
{
struct prog prog =
PROG_INIT(PROG_REFCODE, CONFIG_CBFS_PREFIX "/refcode");
struct rmod_stage_load refcode = {
.cbmem_id = CBMEM_ID_REFCODE,
.prog = &prog,
};
if (acpi_is_wakeup_s3())
return load_refcode_from_cache();
if (prog_locate(&prog)) {
printk(BIOS_DEBUG, "Couldn't locate reference code.\n");
return NULL;
}
if (rmodule_stage_load(&refcode)) {
printk(BIOS_DEBUG, "Error loading reference code.\n");
return NULL;
}
/* Cache loaded reference code. */
stage_cache_add(STAGE_REFCODE, &prog);
return (pei_wrapper_entry_t)prog_entry(&prog);
}
void broadwell_run_reference_code(void)
{
int ret, dummy;
struct pei_data pei_data;
pei_wrapper_entry_t entry;
memset(&pei_data, 0, sizeof(pei_data));
mainboard_fill_pei_data(&pei_data);
broadwell_fill_pei_data(&pei_data);
pei_data.boot_mode = acpi_is_wakeup_s3() ? ACPI_S3 : 0;
pei_data.saved_data = (void *) &dummy;
entry = load_reference_code();
if (entry == NULL) {
printk(BIOS_ERR, "Reference code not found\n");
return;
}
/* Call into reference code. */
ret = entry(&pei_data);
if (ret != 0) {
printk(BIOS_ERR, "Reference code returned %d\n", ret);
return;
}
}
|
