326 lines
9.0 KiB
C
326 lines
9.0 KiB
C
/* $NetBSD: uba_sbi.c,v 1.7 2000/06/05 00:09:20 matt Exp $ */
|
|
/*
|
|
* Copyright (c) 1996 Jonathan Stone.
|
|
* Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
|
|
* Copyright (c) 1982, 1986 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 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
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)uba.c 7.10 (Berkeley) 12/16/90
|
|
* @(#)autoconf.c 7.20 (Berkeley) 5/9/91
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/device.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#define _VAX_BUS_DMA_PRIVATE
|
|
#include <machine/bus.h>
|
|
#include <machine/mtpr.h>
|
|
#include <machine/nexus.h>
|
|
#include <machine/cpu.h>
|
|
#include <machine/sgmap.h>
|
|
#include <machine/scb.h>
|
|
|
|
#include <dev/qbus/ubavar.h>
|
|
|
|
#include <vax/uba/uba_common.h>
|
|
|
|
#include "locators.h"
|
|
#include "ioconf.h"
|
|
|
|
/* Some SBI-specific defines */
|
|
#define UBASIZE (UBAPAGES * VAX_NBPG)
|
|
#define UMEMA8600(i) (0x20100000+(i)*0x40000)
|
|
#define UMEMB8600(i) (0x22100000+(i)*0x40000)
|
|
|
|
/*
|
|
* Some status registers.
|
|
*/
|
|
#define UBACNFGR_UBIC 0x00010000 /* unibus init complete */
|
|
#define UBACNFGR_BITS \
|
|
"\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC"
|
|
|
|
#define UBACR_IFS 0x00000040 /* interrupt field switch */
|
|
#define UBACR_BRIE 0x00000020 /* BR interrupt enable */
|
|
#define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */
|
|
#define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */
|
|
#define UBACR_ADINIT 0x00000001 /* adapter init */
|
|
|
|
#define UBADPR_BNE 0x80000000 /* buffer not empty - purge */
|
|
|
|
#define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */
|
|
|
|
#define UBASR_BITS \
|
|
"\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO"
|
|
|
|
char ubasr_bits[] = UBASR_BITS;
|
|
|
|
/*
|
|
* The DW780 are directly connected to the SBI on 11/780 and 8600.
|
|
*/
|
|
static int dw780_match(struct device *, struct cfdata *, void *);
|
|
static void dw780_attach(struct device *, struct device *, void *);
|
|
static void dw780_init(struct uba_softc*);
|
|
static void dw780_beforescan(struct uba_softc *);
|
|
static void dw780_afterscan(struct uba_softc *);
|
|
static int dw780_errchk(struct uba_softc *);
|
|
static void uba_dw780int(void *);
|
|
static void ubaerror(struct uba_softc *, int *, int *);
|
|
#ifdef notyet
|
|
static void dw780_purge(struct uba_softc *, int);
|
|
#endif
|
|
|
|
struct cfattach uba_sbi_ca = {
|
|
sizeof(struct uba_vsoftc), dw780_match, dw780_attach
|
|
};
|
|
|
|
extern struct vax_bus_space vax_mem_bus_space;
|
|
|
|
volatile int svec;
|
|
|
|
int
|
|
dw780_match(struct device *parent, struct cfdata *cf, void *aux)
|
|
{
|
|
struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
|
|
|
|
if (cf->cf_loc[SBICF_TR] != sa->sa_nexnum &&
|
|
cf->cf_loc[SBICF_TR] != SBICF_TR_DEFAULT)
|
|
return 0;
|
|
/*
|
|
* The uba type is actually only telling where the uba
|
|
* space is in nexus space.
|
|
*/
|
|
if ((sa->sa_type & ~3) != NEX_UBA0)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
dw780_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct uba_vsoftc *sc = (void *)self;
|
|
struct sbi_attach_args *sa = aux;
|
|
int ubaddr = sa->sa_type & 3;
|
|
int i;
|
|
|
|
printf(": DW780\n");
|
|
/*
|
|
* Fill in bus specific data.
|
|
*/
|
|
sc->uv_sc.uh_ubainit = dw780_init;
|
|
#ifdef notyet
|
|
sc->uv_sc.uh_ubapurge = dw780_purge;
|
|
#endif
|
|
sc->uv_sc.uh_beforescan = dw780_beforescan;
|
|
sc->uv_sc.uh_afterscan = dw780_afterscan;
|
|
sc->uv_sc.uh_errchk = dw780_errchk;
|
|
sc->uv_sc.uh_iot = &vax_mem_bus_space;
|
|
sc->uv_sc.uh_dmat = &sc->uv_dmat;
|
|
sc->uv_uba = (void *)sa->sa_ioh;
|
|
sc->uh_ibase = VAX_NBPG + ubaddr * VAX_NBPG;
|
|
|
|
/*
|
|
* Set up dispatch vectors for DW780.
|
|
*/
|
|
for (i = 14; i < 17; i++)
|
|
scb_vecalloc(vecnum(0, i, sa->sa_nexnum), uba_dw780int,
|
|
sc, SCB_ISTACK, &sc->uv_sc.uh_intrcnt);
|
|
evcnt_attach_dynamic(&sc->uv_sc.uh_intrcnt, EVCNT_TYPE_INTR, NULL,
|
|
sc->uv_sc.uh_dev.dv_xname, "intr");
|
|
|
|
/*
|
|
* Fill in variables used by the sgmap system.
|
|
*/
|
|
sc->uv_size = UBASIZE; /* Size in bytes of Unibus space */
|
|
|
|
uba_dma_init(sc);
|
|
uba_attach(&sc->uv_sc, (parent->dv_unit ? UMEMB8600(ubaddr) :
|
|
UMEMA8600(ubaddr)) + (UBAPAGES * VAX_NBPG));
|
|
}
|
|
|
|
void
|
|
dw780_beforescan(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)sc;
|
|
volatile int *hej = &vc->uv_uba->uba_sr;
|
|
|
|
*hej = *hej;
|
|
vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE;
|
|
}
|
|
|
|
void
|
|
dw780_afterscan(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)sc;
|
|
|
|
vc->uv_uba->uba_cr = UBACR_IFS | UBACR_BRIE |
|
|
UBACR_USEFIE | UBACR_SUEFIE |
|
|
(vc->uv_uba->uba_cr & 0x7c000000);
|
|
}
|
|
|
|
|
|
int
|
|
dw780_errchk(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)sc;
|
|
volatile int *hej = &vc->uv_uba->uba_sr;
|
|
|
|
if (*hej) {
|
|
*hej = *hej;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
uba_dw780int(arg)
|
|
void *arg;
|
|
{
|
|
struct uba_vsoftc *vc = arg;
|
|
struct uba_regs *ur = vc->uv_uba;
|
|
struct ivec_dsp *scb_vec;
|
|
int br, vec;
|
|
|
|
br = mfpr(PR_IPL);
|
|
vec = ur->uba_brrvr[br - 0x14];
|
|
if (vec <= 0) {
|
|
ubaerror(&vc->uv_sc, &br, (int *)&vec);
|
|
if (svec == 0)
|
|
return;
|
|
}
|
|
if (cold)
|
|
scb_fake(vec + vc->uh_ibase, br);
|
|
else {
|
|
scb_vec = (struct ivec_dsp *)((int)scb + 512 + 4 * vec);
|
|
(*scb_vec->hoppaddr)(scb_vec->pushlarg);
|
|
}
|
|
}
|
|
|
|
void
|
|
dw780_init(sc)
|
|
struct uba_softc *sc;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)sc;
|
|
|
|
vc->uv_uba->uba_cr = UBACR_ADINIT;
|
|
vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE|UBACR_USEFIE|UBACR_SUEFIE;
|
|
while ((vc->uv_uba->uba_cnfgr & UBACNFGR_UBIC) == 0)
|
|
;
|
|
}
|
|
|
|
#ifdef notyet
|
|
void
|
|
dw780_purge(sc, bdp)
|
|
struct uba_softc *sc;
|
|
int bdp;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)sc;
|
|
|
|
vc->uv_uba->uba_dpr[bdp] |= UBADPR_BNE;
|
|
}
|
|
#endif
|
|
|
|
int ubawedgecnt = 10;
|
|
int ubacrazy = 500;
|
|
int zvcnt_max = 5000; /* in 8 sec */
|
|
int ubaerrcnt;
|
|
/*
|
|
* This routine is called by the locore code to process a UBA
|
|
* error on an 11/780 or 8600. The arguments are passed
|
|
* on the stack, and value-result (through some trickery).
|
|
* In particular, the uvec argument is used for further
|
|
* uba processing so the result aspect of it is very important.
|
|
* It must not be declared register.
|
|
*/
|
|
/*ARGSUSED*/
|
|
void
|
|
ubaerror(uh, ipl, uvec)
|
|
register struct uba_softc *uh;
|
|
int *ipl, *uvec;
|
|
{
|
|
struct uba_vsoftc *vc = (void *)uh;
|
|
struct uba_regs *uba = vc->uv_uba;
|
|
register int sr, s;
|
|
|
|
if (*uvec == 0) {
|
|
/*
|
|
* Declare dt as unsigned so that negative values
|
|
* are handled as >8 below, in case time was set back.
|
|
*/
|
|
u_long dt = time.tv_sec - vc->uh_zvtime;
|
|
|
|
vc->uh_zvtotal++;
|
|
if (dt > 8) {
|
|
vc->uh_zvtime = time.tv_sec;
|
|
vc->uh_zvcnt = 0;
|
|
}
|
|
if (++vc->uh_zvcnt > zvcnt_max) {
|
|
printf("%s: too many zero vectors (%d in <%d sec)\n",
|
|
vc->uv_sc.uh_dev.dv_xname, vc->uh_zvcnt, (int)dt + 1);
|
|
printf("\tIPL 0x%x\n\tcnfgr: %b Adapter Code: 0x%x\n",
|
|
*ipl, uba->uba_cnfgr&(~0xff), UBACNFGR_BITS,
|
|
uba->uba_cnfgr&0xff);
|
|
printf("\tsr: %b\n\tdcr: %x (MIC %sOK)\n",
|
|
uba->uba_sr, ubasr_bits, uba->uba_dcr,
|
|
(uba->uba_dcr&0x8000000)?"":"NOT ");
|
|
ubareset(&vc->uv_sc);
|
|
}
|
|
return;
|
|
}
|
|
if (uba->uba_cnfgr & NEX_CFGFLT) {
|
|
printf("%s: sbi fault sr=%b cnfgr=%b\n",
|
|
vc->uv_sc.uh_dev.dv_xname, uba->uba_sr, ubasr_bits,
|
|
uba->uba_cnfgr, NEXFLT_BITS);
|
|
ubareset(&vc->uv_sc);
|
|
*uvec = 0;
|
|
return;
|
|
}
|
|
sr = uba->uba_sr;
|
|
s = splimp();
|
|
printf("%s: uba error sr=%b fmer=%x fubar=%o\n", vc->uv_sc.uh_dev.dv_xname,
|
|
uba->uba_sr, ubasr_bits, uba->uba_fmer, 4*uba->uba_fubar);
|
|
splx(s);
|
|
uba->uba_sr = sr;
|
|
*uvec &= UBABRRVR_DIV;
|
|
if (++ubaerrcnt % ubawedgecnt == 0) {
|
|
if (ubaerrcnt > ubacrazy)
|
|
panic("uba crazy");
|
|
printf("ERROR LIMIT ");
|
|
ubareset(&vc->uv_sc);
|
|
*uvec = 0;
|
|
}
|
|
}
|