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
;
28 struct persistent_ram_descriptor
{
33 struct persistent_ram
{
38 struct persistent_ram_descriptor
*descs
;
40 struct list_head node
;
43 struct persistent_ram_zone
{
47 struct persistent_ram_buffer
*buffer
;
54 struct rs_control
*rs_decoder
;
66 int persistent_ram_early_init(struct persistent_ram
*ram
);
68 struct persistent_ram_zone
* __init
persistent_ram_new(phys_addr_t start
,
71 void persistent_ram_free(struct persistent_ram_zone
*prz
);
72 struct persistent_ram_zone
*persistent_ram_init_ringbuffer(struct device
*dev
,
75 int persistent_ram_write(struct persistent_ram_zone
*prz
, const void *s
,
78 size_t persistent_ram_old_size(struct persistent_ram_zone
*prz
);
79 void *persistent_ram_old(struct persistent_ram_zone
*prz
);
80 void persistent_ram_free_old(struct persistent_ram_zone
*prz
);
81 ssize_t
persistent_ram_ecc_string(struct persistent_ram_zone
*prz
,
82 char *str
, size_t len
);
85 * Ramoops platform data
86 * @mem_size memory size for ramoops
87 * @mem_address physical memory address to contain ramoops
90 struct ramoops_platform_data
{
91 unsigned long mem_size
;
92 unsigned long mem_address
;
93 unsigned long record_size
;