arch/arm/mach-mt8127/include/mach/paniclog.h

   1 #ifndef __MT6575_PANICLOG_H__
   2 #define __MT6575_PANICLOG_H__
   3
   4 #define PANICLOG_BUF_LEN 16384
   5 #define PANICLOG_HEADER_SIZE 512
   6 #define PANICLOG_SECTION_SIZE (PANICLOG_BUF_LEN) + (PANICLOG_HEADER_SIZE)
   7
   8 #ifndef __ASSEMBLY__
   9
  10 #define PANICLOG_VALID_PATTERN 0x90EFABCD
  11 #define PANICLOG_BACKTRACE_NUM 4
  12 #define PANICLOG_PROCESS_NAME_LENGTH 256
  13
  14 struct paniclog {
  15         int valid;              /* log is valid if valid == PANICLOG_VALID_PATTERN */
  16         int crc;
  17
  18         struct {
  19                 unsigned long bt_where[PANICLOG_BACKTRACE_NUM];
  20                 unsigned long bt_from[PANICLOG_BACKTRACE_NUM];
  21                 char process_path[PANICLOG_PROCESS_NAME_LENGTH];
  22
  23                 char buf[PANICLOG_BUF_LEN];
  24                 int buf_len;
  25         } c;
  26 };
  27
  28 extern struct paniclog *paniclog;
  29
  30 #ifdef CONFIG_PANICLOG
  31
  32 /* Begin starting panic record */
  33 void paniclog_start(void);
  34
  35 void paniclog_end(void);
  36
  37 /* Record the task acenstor into current paniclog */
  38 void paniclog_ptree_store(struct task_struct *tsk);
  39
  40 /* Record stack trace info into current paniclog */
  41 void paniclog_stack_store(unsigned long where, unsigned long from);
  42
  43 /* Check if panic log available */
  44 int paniclog_is_available(void);
  45
  46 /* Dump current paniclog to kernel log buffer */
  47 void paniclog_dump(void);
  48
  49 /* Copy the current panic log and clear the panic log before return */
  50 void paniclog_copy_and_clear(struct paniclog *log);
  51
  52 #else
  53
  54 #define paniclog_start(a)
  55
  56 #define  paniclog_end()
  57
  58 #define paniclog_ptree_store(tsk)
  59
  60 #define paniclog_stack_store(where, from)
  61
  62 #define paniclog_is_available() 0
  63
  64 #define paniclog_copy_and_clear(log)
  65
  66 #endif /* CONFIG_PANALOG_LOG */
  67
  68 #endif /* __ASSEMBLY */
  69
  70 #endif  /* !__MT6575_PANICLOG_H__ */
  71