1#ifndef __PSTORE_INTERNAL_H__
2#define __PSTORE_INTERNAL_H__
3
4#include <linux/types.h>
5#include <linux/time.h>
6#include <linux/pstore.h>
7
8#if NR_CPUS <= 2 && defined(CONFIG_ARM_THUMB)
9#define PSTORE_CPU_IN_IP 0x1
10#elif NR_CPUS <= 4 && defined(CONFIG_ARM)
11#define PSTORE_CPU_IN_IP 0x3
12#endif
13
14struct pstore_ftrace_record {
15	unsigned long ip;
16	unsigned long parent_ip;
17#ifndef PSTORE_CPU_IN_IP
18	unsigned int cpu;
19#endif
20};
21
22static inline void
23pstore_ftrace_encode_cpu(struct pstore_ftrace_record *rec, unsigned int cpu)
24{
25#ifndef PSTORE_CPU_IN_IP
26	rec->cpu = cpu;
27#else
28	rec->ip |= cpu;
29#endif
30}
31
32static inline unsigned int
33pstore_ftrace_decode_cpu(struct pstore_ftrace_record *rec)
34{
35#ifndef PSTORE_CPU_IN_IP
36	return rec->cpu;
37#else
38	return rec->ip & PSTORE_CPU_IN_IP;
39#endif
40}
41
42#ifdef CONFIG_PSTORE_FTRACE
43extern void pstore_register_ftrace(void);
44#else
45static inline void pstore_register_ftrace(void) {}
46#endif
47
48#ifdef CONFIG_PSTORE_PMSG
49extern void pstore_register_pmsg(void);
50#else
51static inline void pstore_register_pmsg(void) {}
52#endif
53
54extern struct pstore_info *psinfo;
55
56extern void	pstore_set_kmsg_bytes(int);
57extern void	pstore_get_records(int);
58extern int	pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
59			      int count, char *data, bool compressed,
60			      size_t size, struct timespec time,
61			      struct pstore_info *psi);
62extern int	pstore_is_mounted(void);
63
64#endif
65