57 строки
2.0 KiB
C
57 строки
2.0 KiB
C
/*
|
|
* include/asm-mips/dec/ecc.h
|
|
*
|
|
* ECC handling logic definitions common to DECstation/DECsystem
|
|
* 5000/200 (KN02), 5000/240 (KN03), 5000/260 (KN05) and
|
|
* DECsystem 5900 (KN03), 5900/260 (KN05) systems.
|
|
*
|
|
* Copyright (C) 2003 Maciej W. Rozycki
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef __ASM_MIPS_DEC_ECC_H
|
|
#define __ASM_MIPS_DEC_ECC_H
|
|
|
|
/*
|
|
* Error Address Register bits.
|
|
* The register is r/wc -- any write clears it.
|
|
*/
|
|
#define KN0X_EAR_VALID (1<<31) /* error data valid, bus IRQ */
|
|
#define KN0X_EAR_CPU (1<<30) /* CPU/DMA transaction */
|
|
#define KN0X_EAR_WRITE (1<<29) /* write/read transaction */
|
|
#define KN0X_EAR_ECCERR (1<<28) /* ECC/timeout or overrun */
|
|
#define KN0X_EAR_RES_27 (1<<27) /* unused */
|
|
#define KN0X_EAR_ADDRESS (0x7ffffff<<0) /* address involved */
|
|
|
|
/*
|
|
* Error Syndrome Register bits.
|
|
* The register is frozen when EAR.VALID is set, otherwise it records bits
|
|
* from the last memory read. The register is r/wc -- any write clears it.
|
|
*/
|
|
#define KN0X_ESR_VLDHI (1<<31) /* error data valid hi word */
|
|
#define KN0X_ESR_CHKHI (0x7f<<24) /* check bits read from mem */
|
|
#define KN0X_ESR_SNGHI (1<<23) /* single/double bit error */
|
|
#define KN0X_ESR_SYNHI (0x7f<<16) /* syndrome from ECC logic */
|
|
#define KN0X_ESR_VLDLO (1<<15) /* error data valid lo word */
|
|
#define KN0X_ESR_CHKLO (0x7f<<8) /* check bits read from mem */
|
|
#define KN0X_ESR_SNGLO (1<<7) /* single/double bit error */
|
|
#define KN0X_ESR_SYNLO (0x7f<<0) /* syndrome from ECC logic */
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
struct pt_regs;
|
|
|
|
extern void dec_ecc_be_init(void);
|
|
extern int dec_ecc_be_handler(struct pt_regs *regs, int is_fixup);
|
|
extern irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id,
|
|
struct pt_regs *regs);
|
|
#endif
|
|
|
|
#endif /* __ASM_MIPS_DEC_ECC_H */
|