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.
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.
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.
17 #ifndef __LINUX_PSTORE_RAM_H__
18 #define __LINUX_PSTORE_RAM_H__
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>
26 struct persistent_ram_buffer;
29 struct persistent_ram_ecc_info {
36 struct persistent_ram_zone {
40 struct persistent_ram_buffer *buffer;
46 struct rs_control *rs_decoder;
49 struct persistent_ram_ecc_info ecc_info;
55 struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
56 u32 sig, struct persistent_ram_ecc_info *ecc_info);
57 void persistent_ram_free(struct persistent_ram_zone *prz);
58 void persistent_ram_zap(struct persistent_ram_zone *prz);
60 int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
63 void persistent_ram_save_old(struct persistent_ram_zone *prz);
64 size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
65 void *persistent_ram_old(struct persistent_ram_zone *prz);
66 void persistent_ram_free_old(struct persistent_ram_zone *prz);
67 ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
68 char *str, size_t len);
70 void ramoops_console_write_buf(const char *buf, size_t size);
73 * Ramoops platform data
74 * @mem_size memory size for ramoops
75 * @mem_address physical memory address to contain ramoops
78 struct ramoops_platform_data {
79 unsigned long mem_size;
80 unsigned long mem_address;
81 unsigned long record_size;
82 unsigned long console_size;
83 unsigned long ftrace_size;
84 unsigned long pmsg_size;
86 struct persistent_ram_ecc_info ecc_info;