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[src/trunk]: src/sys/dev/dec/qbus First step towards MI Unibus/Q22 bus code.
details: https://anonhg.NetBSD.org/src/rev/67733d06b5cf
branches: trunk
changeset: 473200:67733d06b5cf
user: ragge <ragge%NetBSD.org@localhost>
date: Mon May 24 20:12:57 1999 +0000
description:
First step towards MI Unibus/Q22 bus code.
diffstat:
sys/dev/dec/qbus/files.uba | 8 +
sys/dev/dec/qbus/uba.c | 480 +-------------------------------------------
sys/dev/dec/qbus/ubareg.h | 3 +-
sys/dev/dec/qbus/ubavar.h | 20 +-
4 files changed, 38 insertions(+), 473 deletions(-)
diffs (truncated from 620 to 300 lines):
diff -r e12d980d976b -r 67733d06b5cf sys/dev/dec/qbus/files.uba
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/dec/qbus/files.uba Mon May 24 20:12:57 1999 +0000
@@ -0,0 +1,8 @@
+# $NetBSD: files.uba,v 1.1 1999/05/24 20:12:57 ragge Exp $
+#
+# Config file and device description for machine-independent
+# code for devices Digital Equipment Corp. Unibus and Q22 bus.
+# Included by ports that need it.
+device uba { csr }
+
+file dev/dec/uba/uba.c uba & new_uba
diff -r e12d980d976b -r 67733d06b5cf sys/dev/dec/qbus/uba.c
--- a/sys/dev/dec/qbus/uba.c Mon May 24 20:12:10 1999 +0000
+++ b/sys/dev/dec/qbus/uba.c Mon May 24 20:12:57 1999 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: uba.c,v 1.42 1999/02/02 18:37:20 ragge Exp $ */
+/* $NetBSD: uba.c,v 1.43 1999/05/24 20:12:58 ragge Exp $ */
/*
* Copyright (c) 1996 Jonathan Stone.
* Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden.
@@ -54,439 +54,25 @@
#include <vm/vm.h>
#include <vm/vm_kern.h>
-#include <machine/pte.h>
-#include <machine/cpu.h>
-#include <machine/mtpr.h>
-#include <machine/nexus.h>
-#include <machine/sid.h>
+#include <machine/bus.h>
#include <machine/scb.h>
-#include <machine/trap.h>
-#include <machine/frame.h>
+#include <machine/cpu.h>
-#include <vax/uba/ubareg.h>
-#include <vax/uba/ubavar.h>
+#ifdef __vax__
+#include <machine/pte.h>
+#endif
-volatile int /* rbr, rcvec,*/ svec;
+#include <dev/dec/uba/ubareg.h>
+#include <dev/dec/uba/ubavar.h>
static int ubasearch __P((struct device *, struct cfdata *, void *));
static int ubaprint __P((void *, const char *));
-#if 0
-static void ubastray __P((int));
-#endif
static void ubainitmaps __P((struct uba_softc *));
extern struct cfdriver uba_cd;
#define spluba spl7
-#if defined(DW780) || defined(DW750)
-
-int dw_match __P((struct device *, struct cfdata *, void *));
-
-int
-dw_match(parent, cf, aux)
- struct device *parent;
- struct cfdata *cf;
- void *aux;
-{
- struct sbi_attach_args *sa = (struct sbi_attach_args *)aux;
-
- if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 ))
- return 0;
-
- /*
- * The uba type is actually only telling where the uba
- * space is in nexus space.
- */
- if ((sa->type & ~3) != NEX_UBA0)
- return 0;
-
- return 1;
-}
-#endif
-
-#ifdef DW780
-/*
- * The DW780 are directly connected to the SBI on 11/780 and 8600.
- */
-void dw780_attach __P((struct device *, struct device *, void *));
-void dw780_beforescan __P((struct uba_softc *));
-void dw780_afterscan __P((struct uba_softc *));
-int dw780_errchk __P((struct uba_softc *));
-void dw780_init __P((struct uba_softc *));
-void dw780_purge __P((struct uba_softc *, int));
-void uba_dw780int __P((int));
-static void ubaerror __P((struct uba_softc *, int *, int *));
-
-struct cfattach uba_sbi_ca = {
- sizeof(struct uba_softc), dw_match, dw780_attach
-};
-
-char ubasr_bits[] = UBASR_BITS;
-
-void
-dw780_attach(parent, self, aux)
- struct device *parent, *self;
- void *aux;
-{
- struct uba_softc *sc = (void *)self;
- struct sbi_attach_args *sa = aux;
- int ubaddr = sa->type & 3;
- int i;
-
- printf(": DW780\n");
-
- /*
- * Fill in bus specific data.
- */
- sc->uh_uba = (void *)sa->nexaddr;
- sc->uh_nbdp = NBDP780;
- sc->uh_nr = sa->nexnum * (parent->dv_unit + 1);
- sc->uh_beforescan = dw780_beforescan;
- sc->uh_afterscan = dw780_afterscan;
- sc->uh_errchk = dw780_errchk;
- sc->uh_ubapurge = dw780_purge;
- sc->uh_ubainit = dw780_init;
- sc->uh_type = DW780;
- sc->uh_memsize = UBAPAGES;
- sc->uh_ibase = VAX_NBPG + ubaddr * VAX_NBPG;
- sc->uh_mr = sc->uh_uba->uba_map;
-
- for (i = 0; i < 4; i++)
- scb_vecalloc(256 + i * 64 + sa->nexnum * 4, uba_dw780int,
- sc->uh_dev.dv_unit, SCB_ISTACK);
-
- uba_attach(sc, (parent->dv_unit ? UMEMB8600(ubaddr) :
- UMEMA8600(ubaddr)) + (UBAPAGES * VAX_NBPG));
-}
-
-void
-dw780_beforescan(sc)
- struct uba_softc *sc;
-{
- volatile int *hej = &sc->uh_uba->uba_sr;
-
- *hej = *hej;
- sc->uh_uba->uba_cr = UBACR_IFS|UBACR_BRIE;
-}
-
-void
-dw780_afterscan(sc)
- struct uba_softc *sc;
-{
- sc->uh_uba->uba_cr = UBACR_IFS | UBACR_BRIE |
- UBACR_USEFIE | UBACR_SUEFIE |
- (sc->uh_uba->uba_cr & 0x7c000000);
-}
-
-/*
- * On DW780 badaddr() in uba space sets a bit in uba_sr instead of
- * doing a machine check.
- */
-int
-dw780_errchk(sc)
- struct uba_softc *sc;
-{
- volatile int *hej = &sc->uh_uba->uba_sr;
-
- if (*hej) {
- *hej = *hej;
- return 1;
- }
- return 0;
-}
-
-void
-uba_dw780int(uba)
- int uba;
-{
- int br, vec, arg;
- struct uba_softc *sc = uba_cd.cd_devs[uba];
- struct uba_regs *ur = sc->uh_uba;
- void (*func) __P((int));
-
- br = mfpr(PR_IPL);
- vec = ur->uba_brrvr[br - 0x14];
- if (vec <= 0) {
- ubaerror(sc, &br, (int *)&vec);
- if (svec == 0)
- return;
- }
- if (cold)
- scb_fake(vec + sc->uh_ibase, br);
- else {
- struct ivec_dsp *scb_vec = (struct ivec_dsp *)((int)scb + 512);
- func = scb_vec[vec/4].hoppaddr;
- arg = scb_vec[vec/4].pushlarg;
- (*func)(arg);
- }
-}
-
-void
-dw780_init(sc)
- struct uba_softc *sc;
-{
- sc->uh_uba->uba_cr = UBACR_ADINIT;
- sc->uh_uba->uba_cr = UBACR_IFS|UBACR_BRIE|UBACR_USEFIE|UBACR_SUEFIE;
- while ((sc->uh_uba->uba_cnfgr & UBACNFGR_UBIC) == 0)
- ;
-}
-
-void
-dw780_purge(sc, bdp)
- struct uba_softc *sc;
- int bdp;
-{
- sc->uh_uba->uba_dpr[bdp] |= UBADPR_BNE;
-}
-
-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_regs *uba = uh->uh_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 - uh->uh_zvtime;
-
- uh->uh_zvtotal++;
- if (dt > 8) {
- uh->uh_zvtime = time.tv_sec;
- uh->uh_zvcnt = 0;
- }
- if (++uh->uh_zvcnt > zvcnt_max) {
- printf("%s: too many zero vectors (%d in <%d sec)\n",
- uh->uh_dev.dv_xname, uh->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(uh->uh_dev.dv_unit);
- }
- return;
- }
- if (uba->uba_cnfgr & NEX_CFGFLT) {
- printf("%s: sbi fault sr=%b cnfgr=%b\n",
- uh->uh_dev.dv_xname, uba->uba_sr, ubasr_bits,
- uba->uba_cnfgr, NEXFLT_BITS);
- ubareset(uh->uh_dev.dv_unit);
- *uvec = 0;
- return;
- }
- sr = uba->uba_sr;
- s = spluba();
- printf("%s: uba error sr=%b fmer=%x fubar=%o\n", uh->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(uh->uh_dev.dv_unit);
- *uvec = 0;
- return;
- }
- return;
-}
-#endif
-
-#ifdef DW750
-/*
- * The DW780 and DW750 are quite similar to their function from
- * a programmers point of view. Differencies are number of BDP's
- * and bus status/command registers, the latter are (partly) IPR's
- * on 750.
- */
-void dw750_attach __P((struct device *, struct device *, void *));
-void dw750_init __P((struct uba_softc *));
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