root/include/asm-sparc/memerr.h

/* */

   1 #ifndef _SPARC_MEMERR_H
   2 #define _SPARC_MEMERR_H
   3 
   4 /* memerr.h:  Bit fields in the asynchronous and synchronous memory error
   5  *            registers used to determine what 'type' of error has just
   6  *            induced a trap.
   7  *
   8  * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
   9  */
  10 
  11 /* synchronous error register fields come first... */
  12 
  13 #define SYNCER_WRITE    0x8000        /* write error...                               */
  14 #define SYNCER_INVAL    0x0080        /* invalid page access was attempted            */
  15 #define SYNCER_PROT     0x0040        /* protection violation                         */
  16 #define SYNCER_TIMEOUT  0x0020        /* mem-bus access timeout (mem does not exist). */
  17 #define SYNCER_SBUSERR  0x0010        /* same as above, but for an SBUS access        */
  18 #define SYNCER_MEMERR   0x0008        /* Bus parity error, lose lose... panic time    */
  19 #define SYNCER_SZERR    0x0002        /* an attempted access was of BAD size, whoops  */
  20 #define SYNCER_WATCHDOG 0x0001        /* although we never see these, the prom will.. */
  21 
  22 /* asynchronous error bits go here */
  23 
  24 #define ASYNCER_WBINVAL   0x80        /* situation arose where the cache tried to write
  25                                        * back a page for which the valid bit was not set
  26                                        * within the mmu. This is due to bad mm kernel bugs.
  27                                        */
  28 
  29 #define ASYNCER_TIMEOUT   0x20        /* mem-access bus timeout... */
  30 #define ASYNCER_DVMAERR   0x10        /* dvma transfer to/from memory bombed... */
  31 
  32 #endif /* _SPARC_MEMERR_H */

/* */