* Copyright (c) 1986, 1988 Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* @(#)ka860.c 7.4 (Berkeley) 12/16/90
* VAX 8600 specific routines.
#include "../include/cpu.h"
#include "../include/mtpr.h"
* 8600 memory register (MERG) bit definitions
#define M8600_ICRD 0x400 /* inhibit crd interrupts */
#define M8600_TB_ERR 0xf00 /* translation buffer error mask */
#define M8600_ADDR_PE 0x080000 /* address parity error */
#define M8600_DBL_ERR 0x100000 /* data double bit error */
#define M8600_SNG_ERR 0x200000 /* data single bit error */
#define M8600_BDT_ERR 0x400000 /* bad data error */
* ESPA register is used to address scratch pad registers in the Ebox.
* To access a register in the scratch pad, write the ESPA with the address
* and then read the ESPD register.
* NOTE: In assmebly code, the mfpr instruction that reads the ESPD
* register must immedately follow the mtpr instruction that setup
* the ESPA register -- per the VENUS processor register spec.
* The scratchpad registers that are supplied for a single bit ECC
#define SPAD_MSTAT1 0x25 /* scratch pad mstat1 register */
#define SPAD_MSTAT2 0x26 /* scratch pad mstat2 register */
#define SPAD_MDECC 0x27 /* scratch pad mdecc register */
#define SPAD_MEAR 0x2a /* scratch pad mear register */
#define M8600_MEMERR(mdecc) ((mdecc) & 0x780000)
#define M8600_HRDERR(mdecc) ((mdecc) & 0x580000)
#define M8600_SYN(mdecc) (((mdecc) >> 9) & 0x3f)
#define M8600_ADDR(mear) ((mear) & 0x3ffffffc)
#define M8600_ARRAY(mear) (((mear) >> 22) & 0x0f)
#define M8600_MDECC_BITS \
"\20\27BAD_DT_ERR\26SNG_BIT_ERR\25DBL_BIT_ERR\24ADDR_PE"
#define M8600_MSTAT1_BITS "\20\30CPR_PE_A\27CPR_PE_B\26ABUS_DT_PE\
\25ABUS_CTL_MSK_PE\24ABUS_ADR_PE\23ABUS_C/A_CYCLE\22ABUS_ADP_1\21ABUS_ADP_0\
\20TB_MISS\17BLK_HIT\16C0_TAG_MISS\15CHE_MISS\14TB_VAL_ERR\13TB_PTE_B_PE\
\12TB_PTE_A_PE\11TB_TAG_PE\10WR_DT_PE_B3\7WR_DT_PE_B2\6WR_DT_PE_B1\
\5WR_DT_PE_B0\4CHE_RD_DT_PE\3CHE_SEL\2ANY_REFL\1CP_BW_CHE_DT_PE"
#define M8600_MSTAT2_BITS "\20\20CP_BYT_WR\17ABUS_BD_DT_CODE\10MULT_ERR\
\7CHE_TAG_PE\6CHE_TAG_W_PE\5CHE_WRTN_BIT\4NXM\3CP-IO_BUF_ERR\2MBOX_LOCK"
mtpr(MERG
, mfpr(MERG
) & ~M8600_ICRD
);
register int reg11
; /* known to be r11 below */
int mdecc
, mear
, mstat1
, mstat2
, array
;
* Scratchpad registers in the Ebox must be read by
* storing their ID number in ESPA and then immediately
* reading ESPD's contents with no other intervening
* The asm's below have a number of constants which
* are defined correctly above and in mtpr.h.
asm("mtpr $0x27,$0x4e; mfpr $0x4f,r11");
mdecc
= reg11
; /* must acknowledge interrupt? */
if (M8600_MEMERR(mdecc
)) {
asm("mtpr $0x2a,$0x4e; mfpr $0x4f,r11");
asm("mtpr $0x25,$0x4e; mfpr $0x4f,r11");
asm("mtpr $0x26,$0x4e; mfpr $0x4f,r11");
array
= M8600_ARRAY(mear
);
printf("mcr0: ecc error, addr %x (array %d) syn %x\n",
M8600_ADDR(mear
), array
, M8600_SYN(mdecc
));
printf("\tMSTAT1 = %b\n\tMSTAT2 = %b\n",
mstat1
, M8600_MSTAT1_BITS
,
mstat2
, M8600_MSTAT2_BITS
);
mtpr(MERG
, mfpr(MERG
) | M8600_ICRD
);
"unkn type", "fbox error", "ebox error", "ibox error",
"mbox error", "tbuf error", "mbox 1D error"
#define MBOX_FE 0x8000 /* Mbox fatal error */
#define FBOX_SERV 0x10000000 /* Fbox service error */
#define IBOX_ERR 0x2000 /* Ibox error */
#define EBOX_ERR 0x1e00 /* Ebox error */
#define MBOX_1D 0x81d0000 /* Mbox 1D error */
int mc86_bcnt
; /* byte count == 0x58 */
int mc86_pc
; /* trapped pc */
int mc86_psl
; /* trapped psl */
register struct mc8600frame
*mcf
= (struct mc8600frame
*)cmcf
;
if (mcf
->mc86_ebcs
& MBOX_FE
)
mcf
->mc86_ehmsts
|= MC_MBOX
;
else if (mcf
->mc86_ehmsts
& FBOX_SERV
)
mcf
->mc86_ehmsts
|= MC_FBOX
;
else if (mcf
->mc86_ebcs
& EBOX_ERR
) {
if (mcf
->mc86_ebcs
& EDP_PE
)
mcf
->mc86_ehmsts
|= MC_MBOX
;
mcf
->mc86_ehmsts
|= MC_EBOX
;
} else if (mcf
->mc86_ehmsts
& IBOX_ERR
)
mcf
->mc86_ehmsts
|= MC_IBOX
;
else if (mcf
->mc86_mstat1
& M8600_TB_ERR
)
mcf
->mc86_ehmsts
|= MC_TBUF
;
else if ((mcf
->mc86_cslint
& MBOX_1D
) == MBOX_1D
)
mcf
->mc86_ehmsts
|= MC_MBOX1D
;
type
= mcf
->mc86_ehmsts
& 0x7;
printf("machine check %x: %s\n", type
,
type
< NMC8600
? mc8600
[type
] : "???");
printf("\tehm.sts %x evmqsav %x ebcs %x edpsr %x cslint %x\n",
mcf
->mc86_ehmsts
, mcf
->mc86_evmqsav
, mcf
->mc86_ebcs
,
mcf
->mc86_edpsr
, mcf
->mc86_cslint
);
printf("\tibesr %x ebxwd %x %x ivasav %x vibasav %x\n",
mcf
->mc86_ibesr
, mcf
->mc86_ebxwd1
, mcf
->mc86_ebxwd2
,
mcf
->mc86_ivasav
, mcf
->mc86_vibasav
);
printf("\tesasav %x isasav %x cpc %x mstat %x %x mdecc %x\n",
mcf
->mc86_esasav
, mcf
->mc86_isasav
, mcf
->mc86_cpc
,
mcf
->mc86_mstat1
, mcf
->mc86_mstat2
, mcf
->mc86_mdecc
);
printf("\tmerg %x cshctl %x mear %x medr %x accs %x cses %x\n",
mcf
->mc86_merg
, mcf
->mc86_cshctl
, mcf
->mc86_mear
,
mcf
->mc86_medr
, mcf
->mc86_accs
, mcf
->mc86_cses
);
printf("\tpc %x psl %x\n", mcf
->mc86_pc
, mcf
->mc86_psl
);