Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
3 * Copyright (C) 2011 Kees Cook <keescook@chromium.org>
4 * Copyright (C) 2011 Google, Inc.
5 *
6 * This software is licensed under the terms of the GNU General Public
7 * License version 2, as published by the Free Software Foundation, and
8 * may be copied, distributed, and modified under those terms.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17#ifndef __LINUX_PSTORE_RAM_H__
18#define __LINUX_PSTORE_RAM_H__
19
20#include <linux/device.h>
21#include <linux/kernel.h>
22#include <linux/list.h>
23#include <linux/types.h>
24#include <linux/init.h>
25
26struct persistent_ram_buffer;
27struct rs_control;
28
29struct persistent_ram_zone {
30 phys_addr_t paddr;
31 size_t size;
32 void *vaddr;
33 struct persistent_ram_buffer *buffer;
34 size_t buffer_size;
35
36 /* ECC correction */
37 char *par_buffer;
38 char *par_header;
39 struct rs_control *rs_decoder;
40 int corrected_bytes;
41 int bad_blocks;
42 int ecc_block_size;
43 int ecc_size;
44
45 char *old_log;
46 size_t old_log_size;
47};
48
49struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
50 u32 sig, int ecc_size);
51void persistent_ram_free(struct persistent_ram_zone *prz);
52void persistent_ram_zap(struct persistent_ram_zone *prz);
53
54int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
55 unsigned int count);
56
57void persistent_ram_save_old(struct persistent_ram_zone *prz);
58size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
59void *persistent_ram_old(struct persistent_ram_zone *prz);
60void persistent_ram_free_old(struct persistent_ram_zone *prz);
61ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
62 char *str, size_t len);
63
64/*
65 * Ramoops platform data
66 * @mem_size memory size for ramoops
67 * @mem_address physical memory address to contain ramoops
68 */
69
70struct ramoops_platform_data {
71 unsigned long mem_size;
72 unsigned long mem_address;
73 unsigned long record_size;
74 unsigned long console_size;
75 unsigned long ftrace_size;
76 int dump_oops;
77 int ecc_size;
78};
79
80#endif