diff options
Diffstat (limited to 'fs/pstore/internal.h')
| -rw-r--r-- | fs/pstore/internal.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/fs/pstore/internal.h b/fs/pstore/internal.h index 3bde461c3f3..958c48d8905 100644 --- a/fs/pstore/internal.h +++ b/fs/pstore/internal.h @@ -1,6 +1,49 @@ +#ifndef __PSTORE_INTERNAL_H__ +#define __PSTORE_INTERNAL_H__ + +#include <linux/pstore.h> + +#if NR_CPUS <= 2 && defined(CONFIG_ARM_THUMB) +#define PSTORE_CPU_IN_IP 0x1 +#elif NR_CPUS <= 4 && defined(CONFIG_ARM) +#define PSTORE_CPU_IN_IP 0x3 +#endif + +struct pstore_ftrace_record { + unsigned long ip; + unsigned long parent_ip; +#ifndef PSTORE_CPU_IN_IP + unsigned int cpu; +#endif +}; + +static inline void +pstore_ftrace_encode_cpu(struct pstore_ftrace_record *rec, unsigned int cpu) +{ +#ifndef PSTORE_CPU_IN_IP + rec->cpu = cpu; +#else + rec->ip |= cpu; +#endif +} + +static inline unsigned int +pstore_ftrace_decode_cpu(struct pstore_ftrace_record *rec) +{ +#ifndef PSTORE_CPU_IN_IP + return rec->cpu; +#else + return rec->ip & PSTORE_CPU_IN_IP; +#endif +} + +extern struct pstore_info *psinfo; + extern void pstore_set_kmsg_bytes(int); extern void pstore_get_records(int); extern int pstore_mkfile(enum pstore_type_id, char *psname, u64 id, char *data, size_t size, struct timespec time, struct pstore_info *psi); extern int pstore_is_mounted(void); + +#endif |