Switch to a bus_space(9)-based device attachment scheme.
- device attachment arguments contain bus-specific address and interrupt levels. - devices must call back on bus map functions to get their addresses and interrupt levels translated properly. - sun4m's obio bus is treated like an Sbus slot. - the sun4-style obio bus has its own attach arguments and map functions.
This commit is contained in:
pk
parent
73f387899e
commit
77f499595c
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: obio.c,v 1.39 1998/01/25 19:44:43 pk Exp $ */
|
||||
/* $NetBSD: obio.c,v 1.40 1998/03/21 19:55:31 pk Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1997 The NetBSD Foundation, Inc.
|
||||
@ -36,36 +36,6 @@
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 1993, 1994 Theo de Raadt
|
||||
* Copyright (c) 1995, 1997 Paul Kranenburg
|
||||
* 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 Theo de Raadt.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
@ -79,6 +49,8 @@
|
||||
|
||||
#include <vm/vm.h>
|
||||
|
||||
#include <machine/bus.h>
|
||||
#include <sparc/dev/sbusvar.h>
|
||||
#include <machine/autoconf.h>
|
||||
#include <machine/pmap.h>
|
||||
#include <machine/oldmon.h>
|
||||
@ -87,31 +59,55 @@
|
||||
#include <sparc/sparc/asm.h>
|
||||
#include <sparc/sparc/vaddrs.h>
|
||||
#include <sparc/sparc/cpuvar.h>
|
||||
#include <sparc/dev/sbusvar.h>
|
||||
|
||||
struct bus_softc {
|
||||
union {
|
||||
struct device scu_dev; /* base device */
|
||||
struct sbus_softc scu_sbus; /* obio is another sbus slot */
|
||||
} bu;
|
||||
struct obio4_softc {
|
||||
struct device sc_dev; /* base device */
|
||||
bus_space_tag_t sc_bustag; /* parent bus tag */
|
||||
bus_dma_tag_t sc_dmatag; /* parent bus dma tag */
|
||||
};
|
||||
|
||||
union obio_softc {
|
||||
struct device sc_dev; /* base device */
|
||||
struct obio4_softc sc_obio; /* sun4 obio */
|
||||
struct sbus_softc sc_sbus; /* sun4m obio is another sbus slot */
|
||||
};
|
||||
|
||||
|
||||
/* autoconfiguration driver */
|
||||
int obioprint __P((void *, const char *));
|
||||
static int obiomatch __P((struct device *, struct cfdata *, void *));
|
||||
static void obioattach __P((struct device *, struct device *, void *));
|
||||
static int obiomatch __P((struct device *, struct cfdata *, void *));
|
||||
static void obioattach __P((struct device *, struct device *, void *));
|
||||
|
||||
#if defined(SUN4)
|
||||
static void obioattach4 __P((struct device *, struct device *, void *));
|
||||
int obiosearch __P((struct device *, struct cfdata *, void *));
|
||||
#endif
|
||||
#if defined(SUN4M)
|
||||
static void obioattach4m __P((struct device *, struct device *, void *));
|
||||
static int obioprint __P((void *, const char *));
|
||||
static int obiosearch __P((struct device *, struct cfdata *, void *));
|
||||
static int obio_bus_mmap __P((void *, bus_type_t, bus_addr_t, int));
|
||||
static int obio_find_rom_map __P((bus_addr_t, bus_type_t, int,
|
||||
bus_space_handle_t *));
|
||||
#endif
|
||||
|
||||
struct cfattach obio_ca = {
|
||||
sizeof(struct bus_softc), obiomatch, obioattach
|
||||
sizeof(union obio_softc), obiomatch, obioattach
|
||||
};
|
||||
|
||||
#if defined(SUN4)
|
||||
static struct sparc_bus_space_tag obio_space_tag = {
|
||||
NULL, /* cookie */
|
||||
NULL, /* bus_space_map */
|
||||
NULL, /* bus_space_unmap */
|
||||
NULL, /* bus_space_subregion */
|
||||
NULL, /* bus_space_barrier */
|
||||
obio_bus_mmap, /* bus_space_mmap */
|
||||
NULL /* bus_intr_establish */
|
||||
};
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Translate obio `interrupts' property value to processor IPL (see sbus.c)
|
||||
* Apparently, the `interrupts' property on obio devices is just
|
||||
* the processor IPL.
|
||||
*/
|
||||
static int intr_obio2ipl[] = {
|
||||
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
|
||||
};
|
||||
|
||||
int
|
||||
@ -120,168 +116,157 @@ obiomatch(parent, cf, aux)
|
||||
struct cfdata *cf;
|
||||
void *aux;
|
||||
{
|
||||
register struct confargs *ca = aux;
|
||||
register struct romaux *ra = &ca->ca_ra;
|
||||
struct mainbus_attach_args *ma = aux;
|
||||
|
||||
return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
|
||||
return (strcmp(cf->cf_driver->cd_name, ma->ma_name) == 0);
|
||||
}
|
||||
|
||||
#if defined(SUN4)
|
||||
int
|
||||
obioprint(args, name)
|
||||
obioprint(args, busname)
|
||||
void *args;
|
||||
const char *name;
|
||||
const char *busname;
|
||||
{
|
||||
register struct confargs *ca = args;
|
||||
union obio_attach_args *uoba = args;
|
||||
struct obio4_attach_args *oba = &uoba->uoba_oba4;
|
||||
|
||||
if (ca->ca_ra.ra_name == NULL)
|
||||
ca->ca_ra.ra_name = "<unknown>";
|
||||
|
||||
if (name)
|
||||
printf("[%s at %s]", ca->ca_ra.ra_name, name);
|
||||
|
||||
printf(" addr %p", ca->ca_ra.ra_paddr);
|
||||
printf(" addr %p pri %d", oba->oba_paddr, oba->oba_pri);
|
||||
|
||||
return (UNCONF);
|
||||
}
|
||||
#endif
|
||||
|
||||
void
|
||||
obioattach(parent, self, args)
|
||||
obioattach(parent, self, aux)
|
||||
struct device *parent, *self;
|
||||
void *args;
|
||||
void *aux;
|
||||
{
|
||||
#if defined(SUN4)
|
||||
if (CPU_ISSUN4)
|
||||
obioattach4(parent, self, args);
|
||||
#endif
|
||||
#if defined(SUN4M)
|
||||
if (CPU_ISSUN4M)
|
||||
obioattach4m(parent, self, args);
|
||||
#endif
|
||||
}
|
||||
struct mainbus_attach_args *ma = aux;
|
||||
|
||||
#if defined(SUN4)
|
||||
void
|
||||
obioattach4(parent, self, args)
|
||||
struct device *parent, *self;
|
||||
void *args;
|
||||
{
|
||||
/*
|
||||
* There is only one obio bus
|
||||
*/
|
||||
if (self->dv_unit > 0) {
|
||||
printf(" unsupported\n");
|
||||
return;
|
||||
}
|
||||
|
||||
printf("\n");
|
||||
(void)config_search(obiosearch, self, args);
|
||||
obio_bus_untmp();
|
||||
}
|
||||
|
||||
if (CPU_ISSUN4) {
|
||||
#if defined(SUN4)
|
||||
/* Propagate interrupt establish function */
|
||||
obio_space_tag.sparc_intr_establish =
|
||||
ma->ma_bustag->sparc_intr_establish;
|
||||
|
||||
(void)config_search(obiosearch, self, aux);
|
||||
#endif
|
||||
return;
|
||||
} else if (CPU_ISSUN4M) {
|
||||
/*
|
||||
* Attach the on-board I/O bus at on a sun4m.
|
||||
* In this case we treat the obio bus as another sbus slot.
|
||||
*/
|
||||
struct sbus_softc *sc = &((union obio_softc *)self)->sc_sbus;
|
||||
|
||||
#if defined(SUN4M)
|
||||
void
|
||||
obioattach4m(parent, self, args)
|
||||
struct device *parent, *self;
|
||||
void *args;
|
||||
{
|
||||
register struct bus_softc *sc = (struct bus_softc *)self;
|
||||
struct confargs oca, *ca = args;
|
||||
register struct romaux *ra = &ca->ca_ra;
|
||||
register int node0, node;
|
||||
register char *name;
|
||||
register const char *sp;
|
||||
const char *const *ssp;
|
||||
int rlen;
|
||||
extern int autoconf_nzs;
|
||||
|
||||
static const char *const special4m[] = {
|
||||
/* find these first */
|
||||
"eeprom",
|
||||
"counter",
|
||||
static const char *const special4m[] = {
|
||||
/* find these first */
|
||||
"eeprom",
|
||||
"counter",
|
||||
#if 0 /* Not all sun4m's have an `auxio' */
|
||||
"auxio",
|
||||
"auxio",
|
||||
#endif
|
||||
"",
|
||||
/* place device to ignore here */
|
||||
"interrupt",
|
||||
NULL
|
||||
};
|
||||
"",
|
||||
/* place device to ignore here */
|
||||
"interrupt",
|
||||
NULL
|
||||
};
|
||||
|
||||
/*
|
||||
* There is only one obio bus (it is in fact one of the Sbus slots)
|
||||
*/
|
||||
if (self->dv_unit > 0) {
|
||||
printf(" unsupported\n");
|
||||
return;
|
||||
}
|
||||
sc->sc_bustag = ma->ma_bustag;
|
||||
sc->sc_dmatag = ma->ma_dmatag;
|
||||
sc->sc_intr2ipl = intr_obio2ipl;
|
||||
|
||||
printf("\n");
|
||||
|
||||
if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "obio") == 0)
|
||||
oca.ca_ra.ra_bp = ra->ra_bp + 1;
|
||||
else
|
||||
oca.ca_ra.ra_bp = NULL;
|
||||
|
||||
node = ra->ra_node;
|
||||
rlen = getproplen(node, "ranges");
|
||||
if (rlen > 0) {
|
||||
sc->bu.scu_sbus.sc_nrange = rlen / sizeof(struct rom_range);
|
||||
sc->bu.scu_sbus.sc_range =
|
||||
(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
|
||||
if (sc->bu.scu_sbus.sc_range == 0)
|
||||
panic("obio: PROM ranges too large: %d", rlen);
|
||||
(void)getprop(node, "ranges", sc->bu.scu_sbus.sc_range, rlen);
|
||||
}
|
||||
|
||||
/*
|
||||
* Loop through ROM children, fixing any relative addresses
|
||||
* and then configuring each device.
|
||||
* We first do the crucial ones, such as eeprom, etc.
|
||||
*/
|
||||
node0 = firstchild(ra->ra_node);
|
||||
for (ssp = special4m ; *(sp = *ssp) != 0; ssp++) {
|
||||
if ((node = findnode(node0, sp)) == 0) {
|
||||
printf("could not find %s amongst obio devices\n", sp);
|
||||
panic(sp);
|
||||
}
|
||||
if (!romprop(&oca.ca_ra, sp, node))
|
||||
continue;
|
||||
|
||||
sbus_translate(self, &oca);
|
||||
oca.ca_bustype = BUS_OBIO;
|
||||
(void) config_found(self, (void *)&oca, obioprint);
|
||||
}
|
||||
|
||||
for (node = node0; node; node = nextsibling(node)) {
|
||||
name = getpropstring(node, "name");
|
||||
for (ssp = special4m ; (sp = *ssp) != NULL; ssp++)
|
||||
if (strcmp(name, sp) == 0)
|
||||
break;
|
||||
|
||||
if (sp != NULL || !romprop(&oca.ca_ra, name, node))
|
||||
continue;
|
||||
|
||||
if (strcmp(name, "zs") == 0)
|
||||
/* XXX - see autoconf.c for this hack */
|
||||
autoconf_nzs++;
|
||||
|
||||
/* Translate into parent address spaces */
|
||||
sbus_translate(self, &oca);
|
||||
oca.ca_bustype = BUS_OBIO;
|
||||
(void) config_found(self, (void *)&oca, obioprint);
|
||||
sbus_attach(sc, "obio", ma->ma_node, ma->ma_bp, special4m);
|
||||
} else {
|
||||
printf("obio on this machine?\n");
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
int
|
||||
obio_bus_probe(tag, addr, offset, size, callback, arg)
|
||||
bus_space_tag_t tag;
|
||||
void *addr;
|
||||
int offset;
|
||||
size_t size;
|
||||
int (*callback) __P((void *, void *));
|
||||
void *arg;
|
||||
{
|
||||
#if defined(SUN4)
|
||||
bus_addr_t paddr = (long)addr + offset;
|
||||
bus_space_handle_t bh;
|
||||
caddr_t tmp;
|
||||
int result;
|
||||
|
||||
if (sparc_bus_map(0, PMAP_OBIO, paddr, size, 0, TMPMAP_VA, &bh) != 0)
|
||||
return (0);
|
||||
|
||||
tmp = (caddr_t)bh;
|
||||
result = probeget(tmp + offset, size) != -1;
|
||||
if (result && callback != NULL)
|
||||
result = (*callback)(tmp, arg);
|
||||
pmap_remove(pmap_kernel(), TMPMAP_VA, TMPMAP_VA+NBPG);
|
||||
return (result);
|
||||
#else
|
||||
return (ENXIO);
|
||||
#endif /*SUN4*/
|
||||
}
|
||||
|
||||
int
|
||||
obio_bus_map(tag, addr, offset, size, flags, vaddr, hp)
|
||||
bus_space_tag_t tag;
|
||||
void *addr;
|
||||
int offset;
|
||||
size_t size;
|
||||
int flags;
|
||||
void *vaddr;
|
||||
bus_space_handle_t *hp;
|
||||
{
|
||||
#if defined(SUN4)
|
||||
bus_addr_t paddr = (long)addr + offset;
|
||||
|
||||
if ((flags & OBIO_BUS_MAP_USE_ROM) != 0 &&
|
||||
obio_find_rom_map(paddr, PMAP_OBIO, size, hp) == 0)
|
||||
return (0);
|
||||
|
||||
return (sparc_bus_map(0, PMAP_OBIO, paddr, size, flags,
|
||||
(vm_offset_t)vaddr, hp));
|
||||
#else
|
||||
return (ENXIO);
|
||||
#endif /*SUN4*/
|
||||
}
|
||||
|
||||
#if defined(SUN4)
|
||||
int
|
||||
obiosearch(parent, cf, args)
|
||||
obio_bus_mmap(cookie, btype, paddr, flags)
|
||||
void *cookie;
|
||||
bus_type_t btype;
|
||||
bus_addr_t paddr;
|
||||
int flags;
|
||||
{
|
||||
|
||||
return (sparc_bus_mmap(0, PMAP_OBIO, paddr, flags));
|
||||
}
|
||||
|
||||
int
|
||||
obiosearch(parent, cf, aux)
|
||||
struct device *parent;
|
||||
struct cfdata *cf;
|
||||
void *args;
|
||||
void *aux;
|
||||
{
|
||||
register struct confargs *ca = args;
|
||||
struct confargs oca;
|
||||
caddr_t tmp;
|
||||
struct mainbus_attach_args *ma = aux;
|
||||
union obio_attach_args uoba;
|
||||
struct obio4_attach_args *oba = &uoba.uoba_oba4;
|
||||
struct bootpath *bp;
|
||||
|
||||
|
||||
/*
|
||||
@ -298,93 +283,68 @@ obiosearch(parent, cf, args)
|
||||
* XXX: We also assume that 4/[23]00 obio addresses
|
||||
* must be 0xZYYYYYYY, where (Z != 0)
|
||||
*/
|
||||
if (cpuinfo.cpu_type == CPUTYP_4_100 &&
|
||||
(cf->cf_loc[0] & 0xf0000000))
|
||||
if (cpuinfo.cpu_type == CPUTYP_4_100 && (cf->cf_loc[0] & 0xf0000000))
|
||||
return (0);
|
||||
if (cpuinfo.cpu_type != CPUTYP_4_100 &&
|
||||
!(cf->cf_loc[0] & 0xf0000000))
|
||||
if (cpuinfo.cpu_type != CPUTYP_4_100 && !(cf->cf_loc[0] & 0xf0000000))
|
||||
return (0);
|
||||
|
||||
oca.ca_ra.ra_paddr = (void *)cf->cf_loc[0];
|
||||
oca.ca_ra.ra_len = 0;
|
||||
oca.ca_ra.ra_nreg = 1;
|
||||
oca.ca_ra.ra_iospace = PMAP_OBIO;
|
||||
uoba.uoba_isobio4 = 1;
|
||||
oba->oba_bustag = &obio_space_tag;
|
||||
oba->oba_dmatag = ma->ma_dmatag;
|
||||
oba->oba_paddr = (void *)cf->cf_loc[0];
|
||||
oba->oba_pri = cf->cf_loc[1];
|
||||
|
||||
if (oca.ca_ra.ra_paddr)
|
||||
tmp = (caddr_t)mapdev(oca.ca_ra.ra_reg, TMPMAP_VA, 0, NBPG);
|
||||
bp = ma->ma_bp;
|
||||
if (bp != NULL && strcmp(bp->name, "obio") == 0)
|
||||
oba->oba_bp = bp + 1;
|
||||
else
|
||||
tmp = NULL;
|
||||
oca.ca_ra.ra_vaddr = tmp;
|
||||
oca.ca_ra.ra_intr[0].int_pri = cf->cf_loc[1];
|
||||
oca.ca_ra.ra_intr[0].int_vec = -1;
|
||||
oca.ca_ra.ra_nintr = 1;
|
||||
oca.ca_ra.ra_name = cf->cf_driver->cd_name;
|
||||
oba->oba_bp = NULL;
|
||||
|
||||
if (ca->ca_ra.ra_bp != NULL &&
|
||||
strcmp(ca->ca_ra.ra_bp->name, "obio") == 0)
|
||||
oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
|
||||
else
|
||||
oca.ca_ra.ra_bp = NULL;
|
||||
|
||||
oca.ca_bustype = BUS_OBIO;
|
||||
|
||||
if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
|
||||
if ((*cf->cf_attach->ca_match)(parent, cf, &uoba) == 0)
|
||||
return (0);
|
||||
|
||||
/*
|
||||
* Check if XXmatch routine replaced the temporary mapping with
|
||||
* a real mapping. If not, then make sure we don't pass the
|
||||
* tmp mapping to the attach routine.
|
||||
*/
|
||||
if (oca.ca_ra.ra_vaddr == tmp)
|
||||
oca.ca_ra.ra_vaddr = NULL; /* wipe out tmp address */
|
||||
/*
|
||||
* the match routine will set "ra_len" if it wants us to
|
||||
* establish a mapping for it.
|
||||
* (which won't be seen on future XXmatch calls,
|
||||
* so not as useful as it seems.)
|
||||
*/
|
||||
if (oca.ca_ra.ra_len)
|
||||
oca.ca_ra.ra_vaddr =
|
||||
obio_bus_map(oca.ca_ra.ra_reg, oca.ca_ra.ra_len);
|
||||
|
||||
config_attach(parent, cf, &oca, obioprint);
|
||||
config_attach(parent, cf, &uoba, obioprint);
|
||||
return (1);
|
||||
}
|
||||
|
||||
#define getpte(va) lda(va, ASI_PTE)
|
||||
|
||||
/*
|
||||
* If we can find a mapping that was established by the rom, use it.
|
||||
* Else, create a new mapping.
|
||||
*/
|
||||
void *
|
||||
obio_bus_map(pa, len)
|
||||
struct rom_reg *pa;
|
||||
int len;
|
||||
int
|
||||
obio_find_rom_map(pa, iospace, len, hp)
|
||||
bus_addr_t pa;
|
||||
bus_type_t iospace;
|
||||
int len;
|
||||
bus_space_handle_t *hp;
|
||||
{
|
||||
#define getpte(va) lda(va, ASI_PTE)
|
||||
|
||||
if (CPU_ISSUN4 && len <= NBPG) {
|
||||
u_long pf = (u_long)(pa->rr_paddr) >> PGSHIFT;
|
||||
int pgtype = PMAP_T2PTE_4(pa->rr_iospace);
|
||||
u_long va, pte;
|
||||
u_long pf;
|
||||
int pgtype;
|
||||
u_long va, pte;
|
||||
|
||||
for (va = OLDMON_STARTVADDR; va < OLDMON_ENDVADDR; va += NBPG) {
|
||||
pte = getpte(va);
|
||||
if ((pte & PG_V) != 0 && (pte & PG_TYPE) == pgtype &&
|
||||
(pte & PG_PFNUM) == pf)
|
||||
return ((void *)
|
||||
(va | ((u_long)pa->rr_paddr & PGOFSET)) );
|
||||
/* note: preserve page offset */
|
||||
}
|
||||
if (len <= NBPG)
|
||||
return (EINVAL);
|
||||
|
||||
pf = pa >> PGSHIFT;
|
||||
pgtype = PMAP_T2PTE_4(iospace);
|
||||
|
||||
for (va = OLDMON_STARTVADDR; va < OLDMON_ENDVADDR; va += NBPG) {
|
||||
pte = getpte(va);
|
||||
if ((pte & PG_V) == 0 || (pte & PG_TYPE) != pgtype ||
|
||||
(pte & PG_PFNUM) != pf)
|
||||
continue;
|
||||
|
||||
/*
|
||||
* Found entry in PROM's pagetable
|
||||
* note: preserve page offset
|
||||
*/
|
||||
*hp = (bus_space_handle_t)(va | ((u_long)pa & PGOFSET));
|
||||
return (0);
|
||||
}
|
||||
|
||||
return mapiodev(pa, 0, len);
|
||||
return (ENOENT);
|
||||
}
|
||||
#endif /* SUN4 */
|
||||
|
||||
void
|
||||
obio_bus_untmp()
|
||||
{
|
||||
pmap_remove(pmap_kernel(), TMPMAP_VA, TMPMAP_VA+NBPG);
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: sbus.c,v 1.18 1998/01/12 20:23:56 thorpej Exp $ */
|
||||
/* $NetBSD: sbus.c,v 1.19 1998/03/21 19:55:31 pk Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1992, 1993
|
||||
@ -54,24 +54,77 @@
|
||||
#include <sys/device.h>
|
||||
#include <vm/vm.h>
|
||||
|
||||
#include <machine/autoconf.h>
|
||||
|
||||
#include <machine/bus.h>
|
||||
#include <sparc/dev/sbusreg.h>
|
||||
#include <sparc/dev/sbusvar.h>
|
||||
|
||||
int sbus_print __P((void *, const char *));
|
||||
#include <sparc/sparc/iommuvar.h>
|
||||
#include <machine/autoconf.h>
|
||||
|
||||
|
||||
void sbusreset __P((int));
|
||||
|
||||
/* autoconfiguration driver */
|
||||
void sbus_attach __P((struct device *, struct device *, void *));
|
||||
int sbus_match __P((struct device *, struct cfdata *, void *));
|
||||
static bus_space_tag_t sbus_alloc_bustag __P((struct sbus_softc *));
|
||||
static int sbus_get_intr __P((struct sbus_softc *, int, int *));
|
||||
static int sbus_bus_mmap __P((void *, bus_type_t, bus_addr_t, int));
|
||||
|
||||
struct cfattach sbus_ca = {
|
||||
sizeof(struct sbus_softc), sbus_match, sbus_attach
|
||||
|
||||
/* autoconfiguration driver */
|
||||
int sbus_match_mainbus __P((struct device *, struct cfdata *, void *));
|
||||
int sbus_match_iommu __P((struct device *, struct cfdata *, void *));
|
||||
void sbus_attach_mainbus __P((struct device *, struct device *, void *));
|
||||
void sbus_attach_iommu __P((struct device *, struct device *, void *));
|
||||
|
||||
struct cfattach sbus_mainbus_ca = {
|
||||
sizeof(struct sbus_softc), sbus_match_mainbus, sbus_attach_mainbus
|
||||
};
|
||||
struct cfattach sbus_iommu_ca = {
|
||||
sizeof(struct sbus_softc), sbus_match_iommu, sbus_attach_iommu
|
||||
};
|
||||
|
||||
extern struct cfdriver sbus_cd;
|
||||
|
||||
/* If the PROM does not provide the `ranges' property, we make up our own */
|
||||
struct rom_range sbus_translations[] = {
|
||||
/* Assume a maximum of 4 Sbus slots, all mapped to on-board io space */
|
||||
{ 0, 0, PMAP_OBIO, SBUS_ADDR(0,0), 1 << 25 },
|
||||
{ 1, 0, PMAP_OBIO, SBUS_ADDR(1,0), 1 << 25 },
|
||||
{ 2, 0, PMAP_OBIO, SBUS_ADDR(2,0), 1 << 25 },
|
||||
{ 3, 0, PMAP_OBIO, SBUS_ADDR(3,0), 1 << 25 }
|
||||
};
|
||||
|
||||
/*
|
||||
* Child devices receive the Sbus interrupt level in their attach
|
||||
* arguments. We translate these to CPU IPLs using the following
|
||||
* tables. Note: obio bus interrupt levels are identical to the
|
||||
* processor IPL.
|
||||
*
|
||||
* The second set of tables is used when the Sbus interrupt level
|
||||
* cannot be had from the PROM as an `interrupt' property. We then
|
||||
* fall back on the `intr' property which contains the CPU IPL.
|
||||
*/
|
||||
|
||||
/* Translate Sbus interrupt level to processor IPL */
|
||||
static int intr_sbus2ipl_4c[] = {
|
||||
0, 1, 2, 3, 5, 7, 8, 9
|
||||
};
|
||||
static int intr_sbus2ipl_4m[] = {
|
||||
0, 2, 3, 5, 7, 9, 11, 13
|
||||
};
|
||||
|
||||
#if 0
|
||||
/* Table to translate `intr' property values to Sbus interrupt levels */
|
||||
static int intr2sbus_4c[] = {
|
||||
0, 1, 2, 3, -1, 4, -1, 5, 6, 7, -1, -1, -1, -1, -1
|
||||
};
|
||||
static int intr2sbus_4m[] = {
|
||||
0, -1, 1, 2, -1, 3, -1, 4, -1, 5, -1, 6, -1, 7, -1, -1
|
||||
};
|
||||
#endif
|
||||
|
||||
#define SBUS_INTR_COMPAT 0x80000000
|
||||
|
||||
|
||||
/*
|
||||
* Print the location of some sbus-attached device (called just
|
||||
* before attaching that device). If `sbus' is not NULL, the
|
||||
@ -79,49 +132,70 @@ extern struct cfdriver sbus_cd;
|
||||
* Return UNCONF (config_find ignores this if the device was configured).
|
||||
*/
|
||||
int
|
||||
sbus_print(args, sbus)
|
||||
sbus_print(args, busname)
|
||||
void *args;
|
||||
const char *sbus;
|
||||
const char *busname;
|
||||
{
|
||||
register struct confargs *ca = args;
|
||||
struct sbus_attach_args *sa = args;
|
||||
|
||||
if (sbus)
|
||||
printf("%s at %s", ca->ca_ra.ra_name, sbus);
|
||||
printf(" slot %d offset 0x%x", ca->ca_slot, ca->ca_offset);
|
||||
if (busname)
|
||||
printf("%s at %s", sa->sa_name, busname);
|
||||
printf(" slot %d offset 0x%x", sa->sa_slot, sa->sa_offset);
|
||||
if (sa->sa_pri) {
|
||||
int level = sa->sa_pri;
|
||||
struct sbus_softc *sc =
|
||||
(struct sbus_softc *) sa->sa_bustag->cookie;
|
||||
|
||||
printf(" level %d", level & ~SBUS_INTR_COMPAT);
|
||||
if ((level & SBUS_INTR_COMPAT) == 0) {
|
||||
int ipl = sc->sc_intr2ipl[level];
|
||||
if (ipl != level)
|
||||
printf(" (ipl %d)", ipl);
|
||||
}
|
||||
}
|
||||
return (UNCONF);
|
||||
}
|
||||
|
||||
int
|
||||
sbus_match(parent, cf, aux)
|
||||
sbus_match_mainbus(parent, cf, aux)
|
||||
struct device *parent;
|
||||
struct cfdata *cf;
|
||||
void *aux;
|
||||
{
|
||||
register struct confargs *ca = aux;
|
||||
register struct romaux *ra = &ca->ca_ra;
|
||||
struct mainbus_attach_args *ma = aux;
|
||||
|
||||
if (CPU_ISSUN4)
|
||||
return (0);
|
||||
|
||||
return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
|
||||
return (strcmp(cf->cf_driver->cd_name, ma->ma_name) == 0);
|
||||
}
|
||||
|
||||
int
|
||||
sbus_match_iommu(parent, cf, aux)
|
||||
struct device *parent;
|
||||
struct cfdata *cf;
|
||||
void *aux;
|
||||
{
|
||||
struct iommu_attach_args *ia = aux;
|
||||
|
||||
if (CPU_ISSUN4)
|
||||
return (0);
|
||||
|
||||
return (strcmp(cf->cf_driver->cd_name, ia->iom_name) == 0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Attach an Sbus.
|
||||
*/
|
||||
void
|
||||
sbus_attach(parent, self, aux)
|
||||
sbus_attach_mainbus(parent, self, aux)
|
||||
struct device *parent;
|
||||
struct device *self;
|
||||
void *aux;
|
||||
{
|
||||
register struct sbus_softc *sc = (struct sbus_softc *)self;
|
||||
struct confargs *ca = aux;
|
||||
register struct romaux *ra = &ca->ca_ra;
|
||||
register int node;
|
||||
register char *name;
|
||||
struct confargs oca;
|
||||
int rlen;
|
||||
struct sbus_softc *sc = (struct sbus_softc *)self;
|
||||
struct mainbus_attach_args *ma = aux;
|
||||
int node = ma->ma_node;
|
||||
|
||||
/*
|
||||
* XXX there is only one Sbus, for now -- do not know how to
|
||||
@ -132,103 +206,244 @@ sbus_attach(parent, self, aux)
|
||||
return;
|
||||
}
|
||||
|
||||
sc->sc_bustag = ma->ma_bustag;
|
||||
sc->sc_dmatag = ma->ma_dmatag;
|
||||
|
||||
/* Setup interrupt translation tables */
|
||||
sc->sc_intr2ipl = CPU_ISSUN4C
|
||||
? intr_sbus2ipl_4c
|
||||
: intr_sbus2ipl_4m;
|
||||
|
||||
#if 0 /* this won't work */
|
||||
sc->sc_intr_compat = CPU_ISSUN4C
|
||||
? intr2sbus_4c
|
||||
: intr2sbus_4m;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Record clock frequency for synchronous SCSI.
|
||||
* IS THIS THE CORRECT DEFAULT??
|
||||
*/
|
||||
node = ra->ra_node;
|
||||
sc->sc_clockfreq = getpropint(node, "clock-frequency", 25*1000*1000);
|
||||
printf(": clock = %s MHz\n", clockfreq(sc->sc_clockfreq));
|
||||
|
||||
sbus_attach(sc, "sbus", node, ma->ma_bp, NULL);
|
||||
}
|
||||
|
||||
void
|
||||
sbus_attach_iommu(parent, self, aux)
|
||||
struct device *parent;
|
||||
struct device *self;
|
||||
void *aux;
|
||||
{
|
||||
struct sbus_softc *sc = (struct sbus_softc *)self;
|
||||
struct iommu_attach_args *ia = aux;
|
||||
int node = ia->iom_node;
|
||||
|
||||
sc->sc_bustag = ia->iom_bustag;
|
||||
sc->sc_dmatag = ia->iom_dmatag;
|
||||
|
||||
/* Setup interrupt translation tables */
|
||||
sc->sc_intr2ipl = CPU_ISSUN4C ? intr_sbus2ipl_4c : intr_sbus2ipl_4m;
|
||||
|
||||
#if 0 /* this won't work */
|
||||
sc->sc_intr_compat = CPU_ISSUN4C ? intr2sbus_4c : intr2sbus_4m;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Record clock frequency for synchronous SCSI.
|
||||
* IS THIS THE CORRECT DEFAULT??
|
||||
*/
|
||||
sc->sc_clockfreq = getpropint(node, "clock-frequency", 25*1000*1000);
|
||||
printf(": clock = %s MHz\n", clockfreq(sc->sc_clockfreq));
|
||||
|
||||
sbus_attach(sc, "sbus", node, ia->iom_bp, NULL);
|
||||
}
|
||||
|
||||
void
|
||||
sbus_attach(sc, busname, busnode, bp, specials)
|
||||
struct sbus_softc *sc;
|
||||
char *busname;
|
||||
int busnode;
|
||||
struct bootpath *bp;
|
||||
const char * const *specials;
|
||||
{
|
||||
int node0, node, error;
|
||||
const char *sp;
|
||||
const char *const *ssp;
|
||||
bus_space_tag_t sbt;
|
||||
struct sbus_attach_args sa;
|
||||
|
||||
sbt = sbus_alloc_bustag(sc);
|
||||
|
||||
/*
|
||||
* Get the SBus burst transfer size if burst transfers are supported
|
||||
*/
|
||||
sc->sc_burst = getpropint(node, "burst-sizes", 0);
|
||||
sc->sc_burst = getpropint(busnode, "burst-sizes", 0);
|
||||
|
||||
if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "sbus") == 0)
|
||||
oca.ca_ra.ra_bp = ra->ra_bp + 1;
|
||||
/* Propagate bootpath */
|
||||
if (bp != NULL && strcmp(bp->name, busname) == 0)
|
||||
bp++;
|
||||
else
|
||||
oca.ca_ra.ra_bp = NULL;
|
||||
bp = NULL;
|
||||
|
||||
rlen = getproplen(node, "ranges");
|
||||
if (rlen > 0) {
|
||||
sc->sc_nrange = rlen / sizeof(struct rom_range);
|
||||
sc->sc_range =
|
||||
(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
|
||||
if (sc->sc_range == 0)
|
||||
panic("sbus: PROM ranges too large: %d", rlen);
|
||||
(void)getprop(node, "ranges", sc->sc_range, rlen);
|
||||
/*
|
||||
* Collect address translations from the OBP.
|
||||
*/
|
||||
error = getpropA(busnode, "ranges", sizeof(struct rom_range),
|
||||
&sc->sc_nrange, (void **)&sc->sc_range);
|
||||
switch (error) {
|
||||
case 0:
|
||||
break;
|
||||
case ENOENT:
|
||||
/* Fall back to our own `range' construction */
|
||||
sc->sc_range = sbus_translations;
|
||||
sc->sc_nrange =
|
||||
sizeof(sbus_translations)/sizeof(sbus_translations[0]);
|
||||
break;
|
||||
default:
|
||||
panic("%s: error getting ranges property", sc->sc_dev.dv_xname);
|
||||
}
|
||||
|
||||
/*
|
||||
* Loop through ROM children, fixing any relative addresses
|
||||
* and then configuring each device.
|
||||
* `specials' is an array of device names that are treated
|
||||
* specially:
|
||||
*/
|
||||
for (node = firstchild(node); node; node = nextsibling(node)) {
|
||||
name = getpropstring(node, "name");
|
||||
if (!romprop(&oca.ca_ra, name, node))
|
||||
node0 = firstchild(busnode);
|
||||
for (ssp = specials ; ssp != NULL && *(sp = *ssp) != 0; ssp++) {
|
||||
if ((node = findnode(node0, sp)) == 0) {
|
||||
panic("could not find %s amongst %s devices",
|
||||
sp, busname);
|
||||
}
|
||||
|
||||
if (sbus_setup_attach_args(sc, sbt, sc->sc_dmatag,
|
||||
node, bp, &sa) != 0) {
|
||||
panic("sbus_attach: %s: incomplete", sp);
|
||||
}
|
||||
(void) config_found(&sc->sc_dev, (void *)&sa, sbus_print);
|
||||
}
|
||||
|
||||
for (node = node0; node; node = nextsibling(node)) {
|
||||
char *name = getpropstring(node, "name");
|
||||
for (ssp = specials, sp = NULL;
|
||||
ssp != NULL && (sp = *ssp) != NULL;
|
||||
ssp++)
|
||||
if (strcmp(name, sp) == 0)
|
||||
break;
|
||||
|
||||
if (sp != NULL)
|
||||
/* Already configured as an "early" device */
|
||||
continue;
|
||||
|
||||
sbus_translate(self, &oca);
|
||||
oca.ca_bustype = BUS_SBUS;
|
||||
(void) config_found(&sc->sc_dev, (void *)&oca, sbus_print);
|
||||
if (sbus_setup_attach_args(sc, sbt, sc->sc_dmatag,
|
||||
node, bp, &sa) != 0) {
|
||||
printf("sbus_attach: %s: incomplete\n", name);
|
||||
continue;
|
||||
}
|
||||
(void) config_found(&sc->sc_dev, (void *)&sa, sbus_print);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
sbus_translate(dev, ca)
|
||||
struct device *dev;
|
||||
struct confargs *ca;
|
||||
int
|
||||
sbus_setup_attach_args(sc, bustag, dmatag, node, bp, sa)
|
||||
struct sbus_softc *sc;
|
||||
bus_space_tag_t bustag;
|
||||
bus_dma_tag_t dmatag;
|
||||
int node;
|
||||
struct bootpath *bp;
|
||||
struct sbus_attach_args *sa;
|
||||
{
|
||||
struct sbus_softc *sc = (struct sbus_softc *)dev;
|
||||
register int base, slot;
|
||||
register int i;
|
||||
struct rom_reg romreg;
|
||||
int base;
|
||||
int error;
|
||||
|
||||
if (sc->sc_nrange == 0) {
|
||||
/* Old-style Sbus configuration */
|
||||
base = (int)ca->ca_ra.ra_paddr;
|
||||
if (SBUS_ABS(base)) {
|
||||
ca->ca_slot = SBUS_ABS_TO_SLOT(base);
|
||||
ca->ca_offset = SBUS_ABS_TO_OFFSET(base);
|
||||
} else {
|
||||
if (!CPU_ISSUN4C)
|
||||
panic("relative sbus addressing not supported");
|
||||
ca->ca_slot = slot = ca->ca_ra.ra_iospace;
|
||||
ca->ca_offset = base;
|
||||
ca->ca_ra.ra_paddr = (void *)SBUS_ADDR(slot, base);
|
||||
ca->ca_ra.ra_iospace = PMAP_OBIO;
|
||||
bzero(sa, sizeof(struct sbus_attach_args));
|
||||
sa->sa_name = getpropstring(node, "name");
|
||||
sa->sa_bustag = bustag;
|
||||
sa->sa_dmatag = dmatag;
|
||||
sa->sa_node = node;
|
||||
sa->sa_bp = bp;
|
||||
|
||||
/* Fix any remaining register banks */
|
||||
for (i = 1; i < ca->ca_ra.ra_nreg; i++) {
|
||||
base = (int)ca->ca_ra.ra_reg[i].rr_paddr;
|
||||
ca->ca_ra.ra_reg[i].rr_paddr =
|
||||
(void *)SBUS_ADDR(slot, base);
|
||||
ca->ca_ra.ra_reg[i].rr_iospace = PMAP_OBIO;
|
||||
}
|
||||
}
|
||||
if ((error = getprop_reg1(node, &romreg)) != 0)
|
||||
return (error);
|
||||
|
||||
/* We pass only the first "reg" property */
|
||||
base = (int)romreg.rr_paddr;
|
||||
if (SBUS_ABS(base)) {
|
||||
sa->sa_slot = SBUS_ABS_TO_SLOT(base);
|
||||
sa->sa_offset = SBUS_ABS_TO_OFFSET(base);
|
||||
} else {
|
||||
|
||||
ca->ca_slot = ca->ca_ra.ra_iospace;
|
||||
ca->ca_offset = (int)ca->ca_ra.ra_paddr;
|
||||
|
||||
/* Translate into parent address spaces */
|
||||
for (i = 0; i < ca->ca_ra.ra_nreg; i++) {
|
||||
int j, cspace = ca->ca_ra.ra_reg[i].rr_iospace;
|
||||
|
||||
for (j = 0; j < sc->sc_nrange; j++) {
|
||||
if (sc->sc_range[j].cspace == cspace) {
|
||||
(int)ca->ca_ra.ra_reg[i].rr_paddr +=
|
||||
sc->sc_range[j].poffset;
|
||||
(int)ca->ca_ra.ra_reg[i].rr_iospace =
|
||||
sc->sc_range[j].pspace;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
sa->sa_slot = romreg.rr_iospace;
|
||||
sa->sa_offset = base;
|
||||
}
|
||||
sa->sa_size = romreg.rr_len;
|
||||
|
||||
if ((error = sbus_get_intr(sc, node, &sa->sa_pri)) != 0)
|
||||
return (error);
|
||||
|
||||
if ((error = getprop_address1(node, &sa->sa_promvaddr)) != 0)
|
||||
return (error);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
sbus_bus_map(t, slot, offset, size, flags, vaddr, hp)
|
||||
bus_space_tag_t t;
|
||||
int slot, offset, size, flags;
|
||||
vm_offset_t vaddr;
|
||||
bus_space_handle_t *hp;
|
||||
{
|
||||
struct sbus_softc *sc = t->cookie;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < sc->sc_nrange; i++) {
|
||||
bus_addr_t paddr;
|
||||
bus_type_t iospace;
|
||||
|
||||
if (sc->sc_range[i].cspace != slot)
|
||||
continue;
|
||||
|
||||
/* We've found the connection to the parent bus */
|
||||
paddr = sc->sc_range[i].poffset + offset;
|
||||
iospace = sc->sc_range[i].pspace;
|
||||
return (bus_space_map2(sc->sc_bustag, iospace, paddr,
|
||||
size, flags, vaddr, hp));
|
||||
}
|
||||
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
int
|
||||
sbus_bus_mmap(cookie, btype, paddr, flags)
|
||||
void *cookie;
|
||||
bus_type_t btype;
|
||||
bus_addr_t paddr;
|
||||
int flags;
|
||||
{
|
||||
int slot = (int)btype;
|
||||
int offset = (int)paddr;
|
||||
struct sbus_softc *sc = cookie;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < sc->sc_nrange; i++) {
|
||||
bus_addr_t paddr;
|
||||
bus_addr_t iospace;
|
||||
|
||||
if (sc->sc_range[i].cspace != slot)
|
||||
continue;
|
||||
|
||||
paddr = sc->sc_range[i].poffset + offset;
|
||||
iospace = (bus_addr_t)sc->sc_range[i].pspace;
|
||||
return (bus_space_mmap(sc->sc_bustag, iospace, paddr, flags));
|
||||
}
|
||||
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Each attached device calls sbus_establish after it initializes
|
||||
* its sbusdev portion.
|
||||
@ -284,3 +499,103 @@ sbusreset(sbus)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Get interrupt attributes for an Sbus device.
|
||||
*/
|
||||
int
|
||||
sbus_get_intr(sc, node, ip)
|
||||
struct sbus_softc *sc;
|
||||
int node;
|
||||
int *ip;
|
||||
{
|
||||
struct rom_intr *rip;
|
||||
int *ipl;
|
||||
int n;
|
||||
|
||||
/*
|
||||
* The `interrupts' property contains the Sbus interrupt level.
|
||||
*/
|
||||
ipl = NULL;
|
||||
if (getpropA(node, "interrupts", sizeof(int), &n, (void **)&ipl) == 0) {
|
||||
*ip = ipl[0];
|
||||
free(ipl, M_DEVBUF);
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Fall back on `intr' property.
|
||||
*/
|
||||
rip = NULL;
|
||||
switch (getpropA(node, "intr", sizeof(*rip), &n, (void **)&rip)) {
|
||||
case 0:
|
||||
*ip = (rip[0].int_pri & 0xf) | SBUS_INTR_COMPAT;
|
||||
free(rip, M_DEVBUF);
|
||||
return (0);
|
||||
case ENOENT:
|
||||
*ip = 0;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (-1);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Install an interrupt handler for an Sbus device.
|
||||
*/
|
||||
void *
|
||||
sbus_intr_establish(cookie, level, flags, handler, arg)
|
||||
void *cookie;
|
||||
int level;
|
||||
int flags;
|
||||
int (*handler) __P((void *));
|
||||
void *arg;
|
||||
{
|
||||
struct sbus_softc *sc = cookie;
|
||||
struct intrhand *ih;
|
||||
int ipl;
|
||||
|
||||
ih = (struct intrhand *)
|
||||
malloc(sizeof(struct intrhand), M_DEVBUF, M_NOWAIT);
|
||||
if (ih == NULL)
|
||||
return (NULL);
|
||||
|
||||
if ((flags & BUS_INTR_ESTABLISH_SOFTINTR) != 0)
|
||||
ipl = level;
|
||||
else if ((level & SBUS_INTR_COMPAT) != 0)
|
||||
ipl = level & ~SBUS_INTR_COMPAT;
|
||||
else
|
||||
ipl = sc->sc_intr2ipl[level];
|
||||
|
||||
ih->ih_fun = handler;
|
||||
ih->ih_arg = arg;
|
||||
if ((flags & BUS_INTR_ESTABLISH_FASTTRAP) != 0)
|
||||
intr_fasttrap(ipl, (void (*)__P((void)))handler);
|
||||
else
|
||||
intr_establish(ipl, ih);
|
||||
return (ih);
|
||||
}
|
||||
|
||||
static bus_space_tag_t
|
||||
sbus_alloc_bustag(sc)
|
||||
struct sbus_softc *sc;
|
||||
{
|
||||
bus_space_tag_t sbt;
|
||||
|
||||
sbt = (bus_space_tag_t)
|
||||
malloc(sizeof(struct sparc_bus_space_tag), M_DEVBUF, M_NOWAIT);
|
||||
if (sbt == NULL)
|
||||
return (NULL);
|
||||
|
||||
bzero(sbt, sizeof *sbt);
|
||||
sbt->cookie = sc;
|
||||
#if notyet
|
||||
sbt->sparc_bus_map = _sbus_bus_map;
|
||||
#endif
|
||||
sbt->sparc_bus_mmap = sbus_bus_mmap;
|
||||
sbt->sparc_intr_establish = sbus_intr_establish;
|
||||
return (sbt);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user