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17#ifndef __LINUX_PSTORE_RAM_H__
18#define __LINUX_PSTORE_RAM_H__
19
20#include <linux/compiler.h>
21#include <linux/device.h>
22#include <linux/init.h>
23#include <linux/kernel.h>
24#include <linux/list.h>
25#include <linux/types.h>
26
27struct persistent_ram_buffer;
28struct rs_control;
29
30struct persistent_ram_ecc_info {
31 int block_size;
32 int ecc_size;
33 int symsize;
34 int poly;
35};
36
37struct persistent_ram_zone {
38 phys_addr_t paddr;
39 size_t size;
40 void *vaddr;
41 struct persistent_ram_buffer *buffer;
42 size_t buffer_size;
43
44
45 char *par_buffer;
46 char *par_header;
47 struct rs_control *rs_decoder;
48 int corrected_bytes;
49 int bad_blocks;
50 struct persistent_ram_ecc_info ecc_info;
51
52 char *old_log;
53 size_t old_log_size;
54};
55
56struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
57 u32 sig, struct persistent_ram_ecc_info *ecc_info,
58 unsigned int memtype);
59void persistent_ram_free(struct persistent_ram_zone *prz);
60void persistent_ram_zap(struct persistent_ram_zone *prz);
61
62int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
63 unsigned int count);
64int persistent_ram_write_user(struct persistent_ram_zone *prz,
65 const void __user *s, unsigned int count);
66
67void persistent_ram_save_old(struct persistent_ram_zone *prz);
68size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
69void *persistent_ram_old(struct persistent_ram_zone *prz);
70void persistent_ram_free_old(struct persistent_ram_zone *prz);
71ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
72 char *str, size_t len);
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79
80struct ramoops_platform_data {
81 unsigned long mem_size;
82 phys_addr_t mem_address;
83 unsigned int mem_type;
84 unsigned long record_size;
85 unsigned long console_size;
86 unsigned long ftrace_size;
87 unsigned long pmsg_size;
88 int dump_oops;
89 struct persistent_ram_ecc_info ecc_info;
90};
91
92#endif
93