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 69