06bd2712e9
Update TURBOChannel and ioasic interrupt-establish routines to pass on their device argument as a "void *", since that's how all the pmax interrupt handlers are declared.
393 lines
9.5 KiB
C
393 lines
9.5 KiB
C
/* $NetBSD: asic.c,v 1.6 1995/09/25 20:33:28 jonathan Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Author: Keith Bostic, Chris G. Demetriou, Jonathan Stone
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/pte.h>
|
|
|
|
#if 0
|
|
#include <machine/rpb.h>
|
|
#include <alpha/tc/tc.h>
|
|
#include <alpha/tc/asic.h>
|
|
#endif
|
|
|
|
#ifdef pmax
|
|
#include <pmax/pmax/pmaxtype.h>
|
|
#include <pmax/pmax/asic.h>
|
|
#include <pmax/pmax/kn01.h>
|
|
#include <pmax/pmax/kn02.h>
|
|
#include <pmax/pmax/kmin.h>
|
|
#include <pmax/pmax/maxine.h>
|
|
#include <pmax/pmax/kn03.h>
|
|
#include <pmax/pmax/turbochannel.h> /* interrupt enable declaration */
|
|
|
|
#include <pmax/pmax/kn03.h>
|
|
#include <pmax/pmax/kmin.h>
|
|
#include <machine/machConst.h>
|
|
#include <pmax/pmax/nameglue.h>
|
|
|
|
extern int cputype;
|
|
#endif
|
|
|
|
struct asic_softc {
|
|
struct device sc_dv;
|
|
struct abus sc_bus;
|
|
caddr_t sc_base;
|
|
};
|
|
|
|
/* Definition of the driver for autoconfig. */
|
|
int asicmatch __P((struct device *, void *, void *));
|
|
void asicattach __P((struct device *, struct device *, void *));
|
|
int asicprint(void *, char *);
|
|
struct cfdriver ioasiccd =
|
|
{ NULL, "asic", asicmatch, asicattach, DV_DULL, sizeof(struct asic_softc) };
|
|
|
|
void asic_intr_establish __P((struct confargs *, intr_handler_t,
|
|
intr_arg_t));
|
|
void asic_intr_disestablish __P((struct confargs *));
|
|
caddr_t asic_cvtaddr __P((struct confargs *));
|
|
int asic_matchname __P((struct confargs *, char *));
|
|
|
|
#ifndef pmax
|
|
int asic_intr __P((void *));
|
|
#endif
|
|
|
|
int asic_intrnull __P((intr_arg_t));
|
|
|
|
struct asic_slot {
|
|
struct confargs as_ca;
|
|
u_int as_bits;
|
|
intr_handler_t as_handler;
|
|
void *as_val;
|
|
};
|
|
|
|
#ifdef pmax
|
|
struct asic_slot *asic_slots;
|
|
|
|
#include "ds-asic-conf.c"
|
|
|
|
#endif
|
|
|
|
#ifdef alpha
|
|
struct asic_slot asic_slots[ASIC_MAX_NSLOTS] =
|
|
|
|
{
|
|
{ { "lance", /* XXX */ 0, 0x000c0000, },
|
|
ASIC_INTR_LANCE, asic_intrnull, (void *)(long)ASIC_SLOT_LANCE, },
|
|
{ { "scc", /* XXX */ 1, 0x00100000, },
|
|
ASIC_INTR_SCC_0, asic_intrnull, (void *)(long)ASIC_SLOT_SCC0, },
|
|
{ { "scc", /* XXX */ 2, 0x00180000, },
|
|
ASIC_INTR_SCC_1, asic_intrnull, (void *)(long)ASIC_SLOT_SCC1, },
|
|
{ { "dallas_rtc", /* XXX */ 3, 0x00200000, },
|
|
0, asic_intrnull, (void *)(long)ASIC_SLOT_RTC, },
|
|
{ { "AMD79c30", /* XXX */ 4, 0x00240000, },
|
|
0 /* XXX */, asic_intrnull, (void *)(long)ASIC_SLOT_ISDN, },
|
|
};
|
|
#endif /*alpha*/
|
|
|
|
caddr_t asic_base; /* XXX XXX XXX */
|
|
|
|
int
|
|
asicmatch(parent, cfdata, aux)
|
|
struct device *parent;
|
|
void *cfdata;
|
|
void *aux;
|
|
{
|
|
struct cfdata *cf = cfdata;
|
|
struct confargs *ca = aux;
|
|
|
|
/* It can only occur on the turbochannel, anyway. */
|
|
if (ca->ca_bus->ab_type != BUS_TC)
|
|
return (0);
|
|
|
|
/* The 3MAX (kn02) is special. */
|
|
if (BUS_MATCHNAME(ca, KN02_ASIC_NAME)) {
|
|
printf("(configuring KN02 system slot as asic)\n");
|
|
goto gotasic;
|
|
}
|
|
|
|
/* Make sure that we're looking for this type of device. */
|
|
if (!BUS_MATCHNAME(ca, "IOCTL "))
|
|
return (0);
|
|
gotasic:
|
|
|
|
/* See if the unit number is valid. */
|
|
switch (cputype) {
|
|
case DS_3MIN:
|
|
if (cf->cf_unit > 0)
|
|
return (0);
|
|
asic_slots = kn03_asic_slots; /* XXX - 3min same as kn03? */
|
|
break;
|
|
case DS_MAXINE:
|
|
if (cf->cf_unit > 0)
|
|
return (0);
|
|
asic_slots = xine_asic_slots;
|
|
break;
|
|
case DS_3MAX:
|
|
if (cf->cf_unit > 0)
|
|
return (0);
|
|
asic_slots = kn02_asic_slots;
|
|
break;
|
|
case DS_3MAXPLUS:
|
|
if (cf->cf_unit > 0)
|
|
return (0);
|
|
asic_slots = kn03_asic_slots;
|
|
break;
|
|
default:
|
|
printf("no ASIC config table for this machine\n");
|
|
return (0);
|
|
}
|
|
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
asicattach(parent, self, aux)
|
|
struct device *parent, *self;
|
|
void *aux;
|
|
{
|
|
struct asic_softc *sc = (struct asic_softc *)self;
|
|
struct confargs *ca = aux;
|
|
struct confargs *nca;
|
|
int i;
|
|
extern int cputype;
|
|
|
|
if (asic_slots == NULL)
|
|
panic("asicattach: no asic_slot map\n");
|
|
|
|
sc->sc_base = BUS_CVTADDR(ca);
|
|
asic_base = sc->sc_base; /* XXX XXX XXX */
|
|
|
|
sc->sc_bus.ab_dv = (struct device *)sc;
|
|
sc->sc_bus.ab_type = BUS_ASIC;
|
|
sc->sc_bus.ab_intr_establish = asic_intr_establish;
|
|
sc->sc_bus.ab_intr_disestablish = asic_intr_disestablish;
|
|
sc->sc_bus.ab_cvtaddr = asic_cvtaddr;
|
|
sc->sc_bus.ab_matchname = asic_matchname;
|
|
|
|
#ifdef pmax
|
|
printf("\n");
|
|
#else /* Alpha AXP: select ASIC speed */
|
|
#ifdef DEC_3000_300
|
|
if (cputype == ST_DEC_3000_300) {
|
|
*(volatile u_int *)ASIC_REG_CSR(sc->sc_base) |=
|
|
ASIC_CSR_FASTMODE;
|
|
MB();
|
|
printf(": slow mode\n");
|
|
} else
|
|
#endif /*DEC_3000_300*/
|
|
printf(": fast mode\n");
|
|
|
|
/* Decstations use hand-craft code to enable asic interrupts */
|
|
BUS_INTR_ESTABLISH(ca, asic_intr, sc);
|
|
|
|
#endif /* Alpha AXP: select ASIC speed */
|
|
|
|
|
|
/* The MAXINE has seven pseudo-slots in its system slot */
|
|
#define ASIC_MAX_NSLOTS 7 /*XXX*/
|
|
|
|
/* Try to configure each CPU-internal device */
|
|
for (i = 0; i < ASIC_MAX_NSLOTS; i++) {
|
|
|
|
#ifdef DEBUG_ASIC
|
|
printf("asicattach: entry %d\n", i); /*XXX*/
|
|
#endif
|
|
|
|
nca = &asic_slots[i].as_ca;
|
|
if (nca == NULL) panic ("bad asic table\n");
|
|
if (nca->ca_name == NULL && nca->ca_bus == NULL)
|
|
break;
|
|
nca->ca_bus = &sc->sc_bus;
|
|
|
|
#ifdef DEBUG_ASIC
|
|
printf(" adding %s subslot %d offset %x\n", /*XXX*/
|
|
nca->ca_name, nca->ca_slot, nca->ca_offset);
|
|
#endif
|
|
|
|
/* Tell the autoconfig machinery we've found the hardware. */
|
|
config_found(self, nca, asicprint);
|
|
}
|
|
|
|
}
|
|
|
|
int
|
|
asicprint(aux, pnp)
|
|
void *aux;
|
|
char *pnp;
|
|
{
|
|
struct confargs *ca = aux;
|
|
|
|
if (pnp)
|
|
printf("%s at %s", ca->ca_name, pnp);
|
|
printf(" offset 0x%lx", ca->ca_offset);
|
|
printf(" priority %d", ca->ca_slotpri);
|
|
return (UNCONF);
|
|
}
|
|
|
|
/*
|
|
* Save interrupt slotname and enable mask (??)
|
|
* On decstaitons this isn't useful, as the turbochannel
|
|
* decstations all have incompatible ways of mapping interrupts
|
|
* to IO ASIC or r3000 interrupt bits.
|
|
* Instead of writing "as_bits" directly into an IOASIC interrupt-enable
|
|
* register, Decstations use a machine-dependent function that
|
|
* interpret (pseudo-) slot numbers and do ``the right thing'' to enable
|
|
* or disable interrupts for a specific slot (or pseudo-slot), by
|
|
* slot number, on that given CPU.
|
|
*/
|
|
void
|
|
asic_intr_establish(ca, handler, val)
|
|
struct confargs *ca;
|
|
intr_handler_t handler;
|
|
intr_arg_t val;
|
|
{
|
|
|
|
#ifdef DIAGNOSTIC
|
|
#ifdef alpha /*XXX*/
|
|
if (ca->ca_slot == ASIC_SLOT_RTC)
|
|
panic("setting clock interrupt incorrectly");
|
|
#endif /*alpha*/
|
|
#endif /*DIAGNOSTIC*/
|
|
|
|
/* XXX SHOULD NOT BE THIS LITERAL */
|
|
if (asic_slots[ca->ca_slot].as_handler != asic_intrnull)
|
|
/*panic*/ printf("asic_intr_establish: slot %d twice", ca->ca_slot);
|
|
|
|
/*
|
|
* XXX We need to invent a better interface to machine-dependent
|
|
* interrupt-enable code, or redo the Decstation configuration
|
|
* tables with unused entries, so that slot is always equal
|
|
* to "priority" (software pseudo-slot number).
|
|
*/
|
|
#ifdef pmax
|
|
#ifdef DEBUG_ASIC
|
|
printf("asic:%s%d: intr for entry %d(%d) slot %d\n",
|
|
ca->ca_name, val, ca->ca_slot, ca->ca_slotpri,
|
|
asic_slots[ca->ca_slot].as_val);
|
|
#endif /*DEBUG*/
|
|
tc_enable_interrupt(ca->ca_slotpri, handler, val, 1);
|
|
|
|
#else /* Alpha AXP */
|
|
|
|
/* Save handler info so it can be enabled later (??) */
|
|
asic_slots[ca->ca_slot].as_handler = handler;
|
|
asic_slots[ca->ca_slot].as_val = val;
|
|
#endif /* Alpha AXP */
|
|
}
|
|
|
|
void
|
|
asic_intr_disestablish(ca)
|
|
struct confargs *ca;
|
|
{
|
|
|
|
#ifdef pmax
|
|
panic("asic_intr_disestablish: shouldn't ever be called\n");
|
|
#else
|
|
if (ca->ca_slot == ASIC_SLOT_RTC)
|
|
panic("asic_intr_disestablish: can't do clock interrupt");
|
|
|
|
/* XXX SHOULD NOT BE THIS LITERAL */
|
|
if (asic_slots[ca->ca_slot].as_handler == asic_intrnull)
|
|
panic("asic_intr_disestablish: slot %d missing intr",
|
|
ca->ca_slot);
|
|
|
|
asic_slots[ca->ca_slot].as_handler = dsasic_intrnull;
|
|
asic_slots[ca->ca_slot].as_val = (void *)(long)ca->ca_slot;
|
|
#endif
|
|
}
|
|
|
|
caddr_t
|
|
asic_cvtaddr(ca)
|
|
struct confargs *ca;
|
|
{
|
|
|
|
return
|
|
(((struct asic_softc *)ca->ca_bus->ab_dv)->sc_base + ca->ca_offset);
|
|
}
|
|
|
|
int
|
|
asic_matchname(ca, name)
|
|
struct confargs *ca;
|
|
char *name;
|
|
{
|
|
|
|
return (strcmp(name, ca->ca_name) == 0);
|
|
}
|
|
|
|
#ifndef pmax
|
|
/*
|
|
* asic_intr --
|
|
* ASIC interrupt handler.
|
|
*/
|
|
int
|
|
asic_intr(val)
|
|
void *val;
|
|
{
|
|
register struct asic_softc *sc = val;
|
|
register int i, ifound;
|
|
int gifound;
|
|
u_int32_t sir, junk;
|
|
volatile u_int32_t *sirp, *junkp;
|
|
|
|
sirp = (volatile u_int32_t *)ASIC_REG_INTR(sc->sc_base);
|
|
|
|
gifound = 0;
|
|
do {
|
|
ifound = 0;
|
|
MB();
|
|
MAGIC_READ;
|
|
MB();
|
|
|
|
sir = *sirp;
|
|
for (i = 0; i < ASIC_MAX_NSLOTS; i++)
|
|
if (sir & asic_slots[i].as_bits) {
|
|
(void)(*asic_slots[i].as_handler)
|
|
(asic_slots[i].as_val);
|
|
ifound = 1;
|
|
}
|
|
gifound |= ifound;
|
|
} while (ifound);
|
|
|
|
return (gifound);
|
|
}
|
|
#endif /*!pmax*/
|
|
|
|
int
|
|
asic_intrnull(val)
|
|
intr_arg_t val;
|
|
{
|
|
|
|
panic("uncaught IOCTL ASIC intr for slot %ld\n", (long)val);
|
|
}
|