[mirror_ubuntu-artful-kernel.git] / include / asm-sparc / memreg.h

/* $Id: memreg.h,v 1.8 1996/08/29 09:48:23 davem Exp $ */
#ifndef _SPARC_MEMREG_H
#define _SPARC_MEMREG_H
/* memreg.h:  Definitions of the values found in the synchronous
 *            and asynchronous memory error registers when a fault
 *            occurs on the sun4c.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

/* First the synchronous error codes, these are usually just
 * normal page faults.
 */

#define SUN4C_SYNC_WDRESET   0x0001  /* watchdog reset */
#define SUN4C_SYNC_SIZE      0x0002  /* bad access size? whuz this? */
#define SUN4C_SYNC_PARITY    0x0008  /* bad ram chips caused a parity error */
#define SUN4C_SYNC_SBUS      0x0010  /* the SBUS had some problems... */
#define SUN4C_SYNC_NOMEM     0x0020  /* translation to non-existent ram */
#define SUN4C_SYNC_PROT      0x0040  /* access violated pte protections */
#define SUN4C_SYNC_NPRESENT  0x0080  /* pte said that page was not present */
#define SUN4C_SYNC_BADWRITE  0x8000  /* while writing something went bogus */

#define SUN4C_SYNC_BOLIXED  \
        (SUN4C_SYNC_WDRESET | SUN4C_SYNC_SIZE | SUN4C_SYNC_SBUS | \
         SUN4C_SYNC_NOMEM | SUN4C_SYNC_PARITY)

/* Now the asynchronous error codes, these are almost always produced
 * by the cache writing things back to memory and getting a bad translation.
 * Bad DVMA transactions can cause these faults too.
 */

#define SUN4C_ASYNC_BADDVMA 0x0010  /* error during DVMA access */
#define SUN4C_ASYNC_NOMEM   0x0020  /* write back pointed to bad phys addr */
#define SUN4C_ASYNC_BADWB   0x0080  /* write back points to non-present page */

/* Memory parity error register with associated bit constants. */
#ifndef __ASSEMBLY__
extern __volatile__ unsigned long *sun4c_memerr_reg;
#endif

#define	SUN4C_MPE_ERROR	0x80	/* Parity error detected. (ro) */
#define	SUN4C_MPE_MULTI	0x40	/* Multiple parity errors detected. (ro) */
#define	SUN4C_MPE_TEST	0x20	/* Write inverse parity. (rw) */
#define	SUN4C_MPE_CHECK	0x10	/* Enable parity checking. (rw) */
#define	SUN4C_MPE_ERR00	0x08	/* Parity error in bits 0-7. (ro) */
#define	SUN4C_MPE_ERR08	0x04	/* Parity error in bits 8-15. (ro) */
#define	SUN4C_MPE_ERR16	0x02	/* Parity error in bits 16-23. (ro) */
#define	SUN4C_MPE_ERR24	0x01	/* Parity error in bits 24-31. (ro) */
#define	SUN4C_MPE_ERRS	0x0F	/* Bit mask for the error bits. (ro) */

#endif /* !(_SPARC_MEMREG_H) */
Commit	Line	Data
1da177e4 LT	1	/* $Id: memreg.h,v 1.8 1996/08/29 09:48:23 davem Exp $ */
	2	#ifndef _SPARC_MEMREG_H
	3	#define _SPARC_MEMREG_H
	4	/* memreg.h: Definitions of the values found in the synchronous
	5	* and asynchronous memory error registers when a fault
	6	* occurs on the sun4c.
	7	*
	8	* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
	9	*/
	10
	11	/* First the synchronous error codes, these are usually just
	12	* normal page faults.
	13	*/
	14
	15	#define SUN4C_SYNC_WDRESET 0x0001 /* watchdog reset */
	16	#define SUN4C_SYNC_SIZE 0x0002 /* bad access size? whuz this? */
	17	#define SUN4C_SYNC_PARITY 0x0008 /* bad ram chips caused a parity error */
	18	#define SUN4C_SYNC_SBUS 0x0010 /* the SBUS had some problems... */
	19	#define SUN4C_SYNC_NOMEM 0x0020 /* translation to non-existent ram */
	20	#define SUN4C_SYNC_PROT 0x0040 /* access violated pte protections */
	21	#define SUN4C_SYNC_NPRESENT 0x0080 /* pte said that page was not present */
	22	#define SUN4C_SYNC_BADWRITE 0x8000 /* while writing something went bogus */
	23
	24	#define SUN4C_SYNC_BOLIXED \
	25	(SUN4C_SYNC_WDRESET \| SUN4C_SYNC_SIZE \| SUN4C_SYNC_SBUS \| \
	26	SUN4C_SYNC_NOMEM \| SUN4C_SYNC_PARITY)
	27
	28	/* Now the asynchronous error codes, these are almost always produced
	29	* by the cache writing things back to memory and getting a bad translation.
	30	* Bad DVMA transactions can cause these faults too.
	31	*/
	32
	33	#define SUN4C_ASYNC_BADDVMA 0x0010 /* error during DVMA access */
	34	#define SUN4C_ASYNC_NOMEM 0x0020 /* write back pointed to bad phys addr */
	35	#define SUN4C_ASYNC_BADWB 0x0080 /* write back points to non-present page */
	36
	37	/* Memory parity error register with associated bit constants. */
	38	#ifndef __ASSEMBLY__
	39	extern __volatile__ unsigned long *sun4c_memerr_reg;
	40	#endif
	41
	42	#define SUN4C_MPE_ERROR 0x80 /* Parity error detected. (ro) */
	43	#define SUN4C_MPE_MULTI 0x40 /* Multiple parity errors detected. (ro) */
	44	#define SUN4C_MPE_TEST 0x20 /* Write inverse parity. (rw) */
	45	#define SUN4C_MPE_CHECK 0x10 /* Enable parity checking. (rw) */
	46	#define SUN4C_MPE_ERR00 0x08 /* Parity error in bits 0-7. (ro) */
	47	#define SUN4C_MPE_ERR08 0x04 /* Parity error in bits 8-15. (ro) */
	48	#define SUN4C_MPE_ERR16 0x02 /* Parity error in bits 16-23. (ro) */
	49	#define SUN4C_MPE_ERR24 0x01 /* Parity error in bits 24-31. (ro) */
	50	#define SUN4C_MPE_ERRS 0x0F /* Bit mask for the error bits. (ro) */
	51
	52	#endif /* !(_SPARC_MEMREG_H) */