| 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 | |
| 14 | struct 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 | |
| 22 | static inline void |
| 23 | pstore_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 | |
| 32 | static inline unsigned int |
| 33 | pstore_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 |
| 43 | extern void pstore_register_ftrace(void); |
| 44 | extern void pstore_unregister_ftrace(void); |
| 45 | #else |
| 46 | static inline void pstore_register_ftrace(void) {} |
| 47 | static inline void pstore_unregister_ftrace(void) {} |
| 48 | #endif |
| 49 | |
| 50 | #ifdef CONFIG_PSTORE_PMSG |
| 51 | extern void pstore_register_pmsg(void); |
| 52 | extern void pstore_unregister_pmsg(void); |
| 53 | #else |
| 54 | static inline void pstore_register_pmsg(void) {} |
| 55 | static inline void pstore_unregister_pmsg(void) {} |
| 56 | #endif |
| 57 | |
| 58 | extern struct pstore_info *psinfo; |
| 59 | |
| 60 | extern void pstore_set_kmsg_bytes(int); |
| 61 | extern void pstore_get_records(int); |
| 62 | extern int pstore_mkfile(enum pstore_type_id, char *psname, u64 id, |
| 63 | int count, char *data, bool compressed, |
| 64 | size_t size, struct timespec time, |
| 65 | struct pstore_info *psi); |
| 66 | extern bool pstore_is_mounted(void); |
| 67 | |
| 68 | #endif |