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
48extern struct pstore_info *psinfo;
49
50extern void	pstore_set_kmsg_bytes(int);
51extern void	pstore_get_records(int);
52extern int	pstore_mkfile(enum pstore_type_id, char *psname, u64 id,
53			      int count, char *data, bool compressed,
54			      size_t size, struct timespec time,
55			      struct pstore_info *psi);
56extern int	pstore_is_mounted(void);
 
 
 
 
 
 
57
58#endif

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __PSTORE_INTERNAL_H__
 3#define __PSTORE_INTERNAL_H__
 4
 5#include <linux/types.h>
 6#include <linux/time.h>
 7#include <linux/pstore.h>
 8
 9extern unsigned long kmsg_bytes;
 
 
 
 
 
 
 
 
 
 
 
 
10
11#ifdef CONFIG_PSTORE_FTRACE
12extern void pstore_register_ftrace(void);
13extern void pstore_unregister_ftrace(void);
14ssize_t pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
15				  const char *src_log, size_t src_log_size);
16#else
17static inline void pstore_register_ftrace(void) {}
18static inline void pstore_unregister_ftrace(void) {}
19static inline ssize_t
20pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
21			  const char *src_log, size_t src_log_size)
 
22{
23	*dest_log_size = 0;
24	return 0;
 
 
 
25}
26#endif
27
28#ifdef CONFIG_PSTORE_PMSG
29extern void pstore_register_pmsg(void);
30extern void pstore_unregister_pmsg(void);
31#else
32static inline void pstore_register_pmsg(void) {}
33static inline void pstore_unregister_pmsg(void) {}
34#endif
35
36extern struct pstore_info *psinfo;
37
38extern void	pstore_set_kmsg_bytes(int);
39extern void	pstore_get_records(int);
40extern void	pstore_get_backend_records(struct pstore_info *psi,
41					   struct dentry *root, int quiet);
42extern int	pstore_put_backend_records(struct pstore_info *psi);
43extern int	pstore_mkfile(struct dentry *root,
44			      struct pstore_record *record);
45extern void	pstore_record_init(struct pstore_record *record,
46				   struct pstore_info *psi);
47
48/* Called during pstore init/exit. */
49int __init	pstore_init_fs(void);
50void __exit	pstore_exit_fs(void);
51
52#endif