- /* $Id: ecc.h,v 1.3 1996/04/25 06:12:57 davem Exp $
- * ecc.h: Definitions and defines for the external cache/memory
- * controller on the sun4m.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
- #ifndef _SPARC_ECC_H
- #define _SPARC_ECC_H
- /* These registers are accessed through the SRMMU passthrough ASI 0x20 */
- #define ECC_ENABLE 0x00000000 /* ECC enable register */
- #define ECC_FSTATUS 0x00000008 /* ECC fault status register */
- #define ECC_FADDR 0x00000010 /* ECC fault address register */
- #define ECC_DIGNOSTIC 0x00000018 /* ECC diagnostics register */
- #define ECC_MBAENAB 0x00000020 /* MBus arbiter enable register */
- #define ECC_DMESG 0x00001000 /* Diagnostic message passing area */
- /* ECC MBus Arbiter Enable register:
- *
- * ----------------------------------------
- * | |SBUS|MOD3|MOD2|MOD1|RSV|
- * ----------------------------------------
- * 31 5 4 3 2 1 0
- *
- * SBUS: Enable MBus Arbiter on the SBus 0=off 1=on
- * MOD3: Enable MBus Arbiter on MBus module 3 0=off 1=on
- * MOD2: Enable MBus Arbiter on MBus module 2 0=off 1=on
- * MOD1: Enable MBus Arbiter on MBus module 1 0=off 1=on
- */
- #define ECC_MBAE_SBUS 0x00000010
- #define ECC_MBAE_MOD3 0x00000008
- #define ECC_MBAE_MOD2 0x00000004
- #define ECC_MBAE_MOD1 0x00000002
- /* ECC Fault Control Register layout:
- *
- * -----------------------------
- * | RESV | ECHECK | EINT |
- * -----------------------------
- * 31 2 1 0
- *
- * ECHECK: Enable ECC checking. 0=off 1=on
- * EINT: Enable Interrupts for correctable errors. 0=off 1=on
- */
- #define ECC_FCR_CHECK 0x00000002
- #define ECC_FCR_INTENAB 0x00000001
- /* ECC Fault Address Register Zero layout:
- *
- * -----------------------------------------------------
- * | MID | S | RSV | VA | BM |AT| C| SZ |TYP| PADDR |
- * -----------------------------------------------------
- * 31-28 27 26-22 21-14 13 12 11 10-8 7-4 3-0
- *
- * MID: ModuleID of the faulting processor. ie. who did it?
- * S: Supervisor/Privileged access? 0=no 1=yes
- * VA: Bits 19-12 of the virtual faulting address, these are the
- * superset bits in the virtual cache and can be used for
- * a flush operation if necessary.
- * BM: Boot mode? 0=no 1=yes This is just like the SRMMU boot
- * mode bit.
- * AT: Did this fault happen during an atomic instruction? 0=no
- * 1=yes. This means either an 'ldstub' or 'swap' instruction
- * was in progress (but not finished) when this fault happened.
- * This indicated whether the bus was locked when the fault
- * occurred.
- * C: Did the pte for this access indicate that it was cacheable?
- * 0=no 1=yes
- * SZ: The size of the transaction.
- * TYP: The transaction type.
- * PADDR: Bits 35-32 of the physical address for the fault.
- */
- #define ECC_FADDR0_MIDMASK 0xf0000000
- #define ECC_FADDR0_S 0x08000000
- #define ECC_FADDR0_VADDR 0x003fc000
- #define ECC_FADDR0_BMODE 0x00002000
- #define ECC_FADDR0_ATOMIC 0x00001000
- #define ECC_FADDR0_CACHE 0x00000800
- #define ECC_FADDR0_SIZE 0x00000700
- #define ECC_FADDR0_TYPE 0x000000f0
- #define ECC_FADDR0_PADDR 0x0000000f
- /* ECC Fault Address Register One layout:
- *
- * -------------------------------------
- * | Physical Address 31-0 |
- * -------------------------------------
- * 31 0
- *
- * You get the upper 4 bits of the physical address from the
- * PADDR field in ECC Fault Address Zero register.
- */
- /* ECC Fault Status Register layout:
- *
- * ----------------------------------------------
- * | RESV|C2E|MULT|SYNDROME|DWORD|UNC|TIMEO|BS|C|
- * ----------------------------------------------
- * 31-18 17 16 15-8 7-4 3 2 1 0
- *
- * C2E: A C2 graphics error occurred. 0=no 1=yes (SS10 only)
- * MULT: Multiple errors occurred ;-O 0=no 1=prom_panic(yes)
- * SYNDROME: Controller is mentally unstable.
- * DWORD:
- * UNC: Uncorrectable error. 0=no 1=yes
- * TIMEO: Timeout occurred. 0=no 1=yes
- * BS: C2 graphics bad slot access. 0=no 1=yes (SS10 only)
- * C: Correctable error? 0=no 1=yes
- */
- #define ECC_FSR_C2ERR 0x00020000
- #define ECC_FSR_MULT 0x00010000
- #define ECC_FSR_SYND 0x0000ff00
- #define ECC_FSR_DWORD 0x000000f0
- #define ECC_FSR_UNC 0x00000008
- #define ECC_FSR_TIMEO 0x00000004
- #define ECC_FSR_BADSLOT 0x00000002
- #define ECC_FSR_C 0x00000001
- #endif /* !(_SPARC_ECC_H) */