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28f74b2003
freebsd-nq/sys/alpha/tc/tc.c
Matthew N. Dodd fe0d408987 Remove the 'ivars' arguement to device_add_child() and 
device_add_child_ordered().  'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t.  Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything.  I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by:	peter, dfr
1999-12-03 08:41:24 +00:00

689 lines
21 KiB
C
Raw Blame History

/* $FreeBSD$ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* 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 "opt_cpu.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/malloc.h>
#include <machine/rpb.h>
#include <alpha/tc/tcreg.h>
#include <alpha/tc/tcvar.h>
#include <alpha/tc/tcdevs.h>
#include <alpha/tc/ioasicreg.h>
/*#include <alpha/tc/dwlpxreg.h>*/
#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa)
static devclass_t tc_devclass;
device_t tc0; /* XXX only one for now */
struct tc_softc {
device_t sc_dv;
int sc_speed;
int sc_nslots;
int nbuiltins;
struct tc_builtin *builtins;
struct tc_slotdesc *sc_slots;
void (*sc_intr_establish) __P((struct device *, void *,
tc_intrlevel_t, int (*)(void *), void *));
void (*sc_intr_disestablish) __P((struct device *, void *));
/* bus_dma_tag_t (*sc_get_dma_tag) __P((int));
*/
};
#define NTC_ROMOFFS 2
static tc_offset_t tc_slot_romoffs[NTC_ROMOFFS] = {
TC_SLOT_ROM,
TC_SLOT_PROTOROM,
};
#define TC_SOFTC(dev) (struct tc_softc*) device_get_softc(dev)
static int tc_probe(device_t dev);
static int tc_attach(device_t dev);
int tc_checkslot( tc_addr_t slotbase, char *namep);
static device_method_t tc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, tc_probe),
DEVMETHOD(device_attach, tc_attach),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
{ 0, 0 },
};
static driver_t tc_driver = {
"tc",
tc_methods,
sizeof(struct tc_softc),
};
#define C(x) ((void *)(u_long)x)
int tc_intrnull __P((void *));
struct tcintr {
int (*tci_func) __P((void *));
void *tci_arg;
};
#ifdef DEC_3000_300
void tc_3000_300_intr_setup __P((void));
void tc_3000_300_intr_establish __P((struct device *, void *,
tc_intrlevel_t, int (*)(void *), void *));
void tc_3000_300_intr_disestablish __P((struct device *, void *));
void tc_3000_300_iointr __P((void *, unsigned long));
#define DEC_3000_300_IOASIC_ADDR KV(0x1a0000000)
struct tc_slotdesc tc_3000_300_slots[] = {
{ KV(0x100000000), C(TC_3000_300_DEV_OPT0), }, /* 0 - opt slot 0 */
{ KV(0x120000000), C(TC_3000_300_DEV_OPT1), }, /* 1 - opt slot 1 */
{ KV(0x180000000), C(TC_3000_300_DEV_BOGUS), }, /* 2 - TCDS ASIC */
{ KV(0x1a0000000), C(TC_3000_300_DEV_BOGUS), }, /* 3 - IOCTL ASIC */
{ KV(0x1c0000000), C(TC_3000_300_DEV_CXTURBO), }, /* 4 - CXTurbo */
};
int tc_3000_300_nslots =
sizeof(tc_3000_300_slots) / sizeof(tc_3000_300_slots[0]);
struct tc_builtin tc_3000_300_builtins[] = {
#ifdef notyet
{ "PMAGB-BA", 4, 0x02000000, C(TC_3000_300_DEV_CXTURBO), },
#endif
{ "ioasic", 3, 0x00000000, C(TC_3000_300_DEV_IOASIC), },
{ "tcds", 2, 0x00000000, C(TC_3000_300_DEV_TCDS), },
};
int tc_3000_300_nbuiltins =
sizeof(tc_3000_300_builtins) / sizeof(tc_3000_300_builtins[0]);
struct tcintr tc_3000_300_intr[TC_3000_300_NCOOKIES];
#endif /* DEC_3000_300 */
#ifdef DEC_3000_500
void tc_3000_500_intr_setup __P((void));
void tc_3000_500_intr_establish __P((struct device *, void *,
tc_intrlevel_t, int (*)(void *), void *));
void tc_3000_500_intr_disestablish __P((struct device *, void *));
void tc_3000_500_iointr __P((void *, unsigned long));
struct tc_slotdesc tc_3000_500_slots[] = {
{ KV(0x100000000), C(TC_3000_500_DEV_OPT0), }, /* 0 - opt slot 0 */
{ KV(0x120000000), C(TC_3000_500_DEV_OPT1), }, /* 1 - opt slot 1 */
{ KV(0x140000000), C(TC_3000_500_DEV_OPT2), }, /* 2 - opt slot 2 */
{ KV(0x160000000), C(TC_3000_500_DEV_OPT3), }, /* 3 - opt slot 3 */
{ KV(0x180000000), C(TC_3000_500_DEV_OPT4), }, /* 4 - opt slot 4 */
{ KV(0x1a0000000), C(TC_3000_500_DEV_OPT5), }, /* 5 - opt slot 5 */
{ KV(0x1c0000000), C(TC_3000_500_DEV_BOGUS), }, /* 6 - TCDS ASIC */
{ KV(0x1e0000000), C(TC_3000_500_DEV_BOGUS), }, /* 7 - IOCTL ASIC */
};
int tc_3000_500_nslots =
sizeof(tc_3000_500_slots) / sizeof(tc_3000_500_slots[0]);
struct tc_builtin tc_3000_500_builtins[] = {
{ "ioasic", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), },
#ifdef notyet
{ "PMAGB-BA", 7, 0x02000000, C(TC_3000_500_DEV_CXTURBO), },
#endif
{ "tcds", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), },
};
int tc_3000_500_nbuiltins = sizeof(tc_3000_500_builtins) /
sizeof(tc_3000_500_builtins[0]);
u_int32_t tc_3000_500_intrbits[TC_3000_500_NCOOKIES] = {
TC_3000_500_IR_OPT0,
TC_3000_500_IR_OPT1,
TC_3000_500_IR_OPT2,
TC_3000_500_IR_OPT3,
TC_3000_500_IR_OPT4,
TC_3000_500_IR_OPT5,
TC_3000_500_IR_TCDS,
TC_3000_500_IR_IOASIC,
TC_3000_500_IR_CXTURBO,
};
struct tcintr tc_3000_500_intr[TC_3000_500_NCOOKIES];
u_int32_t tc_3000_500_imask; /* intrs we want to ignore; mirrors IMR. */
#endif /* DEC_3000_500 */
#ifdef DEC_3000_300
void
tc_3000_300_intr_setup()
{
volatile u_int32_t *imskp;
u_long i;
/*
* Disable all interrupts that we can (can't disable builtins).
*/
imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR);
*imskp &= ~(IOASIC_INTR_300_OPT0 | IOASIC_INTR_300_OPT1);
/*
* Set up interrupt handlers.
*/
for (i = 0; i < TC_3000_300_NCOOKIES; i++) {
tc_3000_300_intr[i].tci_func = tc_intrnull;
tc_3000_300_intr[i].tci_arg = (void *)i;
}
}
void
tc_3000_300_intr_establish(tcadev, cookie, level, func, arg)
struct device *tcadev;
void *cookie, *arg;
tc_intrlevel_t level;
int (*func) __P((void *));
{
volatile u_int32_t *imskp;
u_long dev = (u_long)cookie;
#ifdef DIAGNOSTIC
/* XXX bounds-check cookie. */
#endif
if (tc_3000_300_intr[dev].tci_func != tc_intrnull)
panic("tc_3000_300_intr_establish: cookie %ld twice", dev);
tc_3000_300_intr[dev].tci_func = func;
tc_3000_300_intr[dev].tci_arg = arg;
imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR);
switch (dev) {
case TC_3000_300_DEV_OPT0:
*imskp |= IOASIC_INTR_300_OPT0;
break;
case TC_3000_300_DEV_OPT1:
*imskp |= IOASIC_INTR_300_OPT1;
break;
default:
/* interrupts for builtins always enabled */
break;
}
}
void
tc_3000_300_intr_disestablish(tcadev, cookie)
struct device *tcadev;
void *cookie;
{
volatile u_int32_t *imskp;
u_long dev = (u_long)cookie;
#ifdef DIAGNOSTIC
/* XXX bounds-check cookie. */
#endif
if (tc_3000_300_intr[dev].tci_func == tc_intrnull)
panic("tc_3000_300_intr_disestablish: cookie %ld bad intr",
dev);
imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR);
switch (dev) {
case TC_3000_300_DEV_OPT0:
*imskp &= ~IOASIC_INTR_300_OPT0;
break;
case TC_3000_300_DEV_OPT1:
*imskp &= ~IOASIC_INTR_300_OPT1;
break;
default:
/* interrupts for builtins always enabled */
break;
}
tc_3000_300_intr[dev].tci_func = tc_intrnull;
tc_3000_300_intr[dev].tci_arg = (void *)dev;
}
void
tc_3000_300_iointr(framep, vec)
void *framep;
unsigned long vec;
{
u_int32_t tcir, ioasicir, ioasicimr;
int ifound;
#ifdef DIAGNOSTIC
int s;
if (vec != 0x800)
panic("INVALID ASSUMPTION: vec 0x%lx, not 0x800", vec);
s = splhigh();
if (s != ALPHA_PSL_IPL_IO)
panic("INVALID ASSUMPTION: IPL %d, not %d", s,
ALPHA_PSL_IPL_IO);
splx(s);
#endif
do {
tc_syncbus();
/* find out what interrupts/errors occurred */
tcir = *(volatile u_int32_t *)TC_3000_300_IR;
ioasicir = *(volatile u_int32_t *)
IOASIC_REG_INTR(DEC_3000_300_IOASIC_ADDR);
ioasicimr = *(volatile u_int32_t *)
IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR);
tc_mb();
/* Ignore interrupts that aren't enabled out. */
ioasicir &= ioasicimr;
/* clear the interrupts/errors we found. */
*(volatile u_int32_t *)TC_3000_300_IR = tcir;
/* XXX can't clear TC option slot interrupts here? */
tc_wmb();
ifound = 0;
#define CHECKINTR(slot, flag) \
if (flag) { \
ifound = 1; \
(*tc_3000_300_intr[slot].tci_func) \
(tc_3000_300_intr[slot].tci_arg); \
}
/* Do them in order of priority; highest slot # first. */
CHECKINTR(TC_3000_300_DEV_CXTURBO,
tcir & TC_3000_300_IR_CXTURBO);
CHECKINTR(TC_3000_300_DEV_IOASIC,
(tcir & TC_3000_300_IR_IOASIC) &&
(ioasicir & ~(IOASIC_INTR_300_OPT1|IOASIC_INTR_300_OPT0)));
CHECKINTR(TC_3000_300_DEV_TCDS, tcir & TC_3000_300_IR_TCDS);
CHECKINTR(TC_3000_300_DEV_OPT1,
ioasicir & IOASIC_INTR_300_OPT1);
CHECKINTR(TC_3000_300_DEV_OPT0,
ioasicir & IOASIC_INTR_300_OPT0);
#undef CHECKINTR
#ifdef DIAGNOSTIC
#define PRINTINTR(msg, bits) \
if (tcir & bits) \
printf(msg);
PRINTINTR("BCache tag parity error\n",
TC_3000_300_IR_BCTAGPARITY);
PRINTINTR("TC overrun error\n", TC_3000_300_IR_TCOVERRUN);
PRINTINTR("TC I/O timeout\n", TC_3000_300_IR_TCTIMEOUT);
PRINTINTR("Bcache parity error\n",
TC_3000_300_IR_BCACHEPARITY);
PRINTINTR("Memory parity error\n", TC_3000_300_IR_MEMPARITY);
#undef PRINTINTR
#endif
} while (ifound);
}
#endif /* DEC_3000_300 */
#ifdef DEC_3000_500
void
tc_3000_500_intr_setup()
{
u_long i;
/*
* Disable all slot interrupts. Note that this cannot
* actually disable CXTurbo, TCDS, and IOASIC interrupts.
*/
tc_3000_500_imask = *(volatile u_int32_t *)TC_3000_500_IMR_READ;
for (i = 0; i < TC_3000_500_NCOOKIES; i++)
tc_3000_500_imask |= tc_3000_500_intrbits[i];
*(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask;
tc_mb();
/*
* Set up interrupt handlers.
*/
for (i = 0; i < TC_3000_500_NCOOKIES; i++) {
tc_3000_500_intr[i].tci_func = tc_intrnull;
tc_3000_500_intr[i].tci_arg = (void *)i;
}
}
void
tc_3000_500_intr_establish(tcadev, cookie, level, func, arg)
struct device *tcadev;
void *cookie, *arg;
tc_intrlevel_t level;
int (*func) __P((void *));
{
u_long dev = (u_long)cookie;
#ifdef DIAGNOSTIC
/* XXX bounds-check cookie. */
#endif
if (tc_3000_500_intr[dev].tci_func != tc_intrnull)
panic("tc_3000_500_intr_establish: cookie %ld twice", dev);
tc_3000_500_intr[dev].tci_func = func;
tc_3000_500_intr[dev].tci_arg = arg;
tc_3000_500_imask &= ~tc_3000_500_intrbits[dev];
*(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask;
tc_mb();
}
void
tc_3000_500_intr_disestablish(tcadev, cookie)
struct device *tcadev;
void *cookie;
{
u_long dev = (u_long)cookie;
#ifdef DIAGNOSTIC
/* XXX bounds-check cookie. */
#endif
if (tc_3000_500_intr[dev].tci_func == tc_intrnull)
panic("tc_3000_500_intr_disestablish: cookie %ld bad intr",
dev);
tc_3000_500_imask |= tc_3000_500_intrbits[dev];
*(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask;
tc_mb();
tc_3000_500_intr[dev].tci_func = tc_intrnull;
tc_3000_500_intr[dev].tci_arg = (void *)dev;
}
void
tc_3000_500_iointr(framep, vec)
void *framep;
unsigned long vec;
{
u_int32_t ir;
int ifound;
#ifdef DIAGNOSTIC
int s;
if (vec != 0x800)
panic("INVALID ASSUMPTION: vec 0x%lx, not 0x800", vec);
s = splhigh();
if (s != ALPHA_PSL_IPL_IO)
panic("INVALID ASSUMPTION: IPL %d, not %d", s,
ALPHA_PSL_IPL_IO);
splx(s);
#endif
do {
tc_syncbus();
ir = *(volatile u_int32_t *)TC_3000_500_IR_CLEAR;
/* Ignore interrupts that we haven't enabled. */
ir &= ~(tc_3000_500_imask & 0x1ff);
ifound = 0;
#define CHECKINTR(slot) \
if (ir & tc_3000_500_intrbits[slot]) { \
ifound = 1; \
(*tc_3000_500_intr[slot].tci_func) \
(tc_3000_500_intr[slot].tci_arg); \
}
/* Do them in order of priority; highest slot # first. */
CHECKINTR(TC_3000_500_DEV_CXTURBO);
CHECKINTR(TC_3000_500_DEV_IOASIC);
CHECKINTR(TC_3000_500_DEV_TCDS);
CHECKINTR(TC_3000_500_DEV_OPT5);
CHECKINTR(TC_3000_500_DEV_OPT4);
CHECKINTR(TC_3000_500_DEV_OPT3);
CHECKINTR(TC_3000_500_DEV_OPT2);
CHECKINTR(TC_3000_500_DEV_OPT1);
CHECKINTR(TC_3000_500_DEV_OPT0);
#undef CHECKINTR
#ifdef DIAGNOSTIC
#define PRINTINTR(msg, bits) \
if (ir & bits) \
printf(msg);
PRINTINTR("Second error occurred\n", TC_3000_500_IR_ERR2);
PRINTINTR("DMA buffer error\n", TC_3000_500_IR_DMABE);
PRINTINTR("DMA cross 2K boundary\n", TC_3000_500_IR_DMA2K);
PRINTINTR("TC reset in progress\n", TC_3000_500_IR_TCRESET);
PRINTINTR("TC parity error\n", TC_3000_500_IR_TCPAR);
PRINTINTR("DMA tag error\n", TC_3000_500_IR_DMATAG);
PRINTINTR("Single-bit error\n", TC_3000_500_IR_DMASBE);
PRINTINTR("Double-bit error\n", TC_3000_500_IR_DMADBE);
PRINTINTR("TC I/O timeout\n", TC_3000_500_IR_TCTIMEOUT);
PRINTINTR("DMA block too long\n", TC_3000_500_IR_DMABLOCK);
PRINTINTR("Invalid I/O address\n", TC_3000_500_IR_IOADDR);
PRINTINTR("DMA scatter/gather invalid\n", TC_3000_500_IR_DMASG);
PRINTINTR("Scatter/gather parity error\n",
TC_3000_500_IR_SGPAR);
#undef PRINTINTR
#endif
} while (ifound);
}
#if 0
/*
* tc_3000_500_ioslot --
* Set the PBS bits for devices on the TC.
*/
void
tc_3000_500_ioslot(slot, flags, set)
u_int32_t slot, flags;
int set;
{
volatile u_int32_t *iosp;
u_int32_t ios;
int s;
iosp = (volatile u_int32_t *)TC_3000_500_IOSLOT;
ios = *iosp;
flags <<= (slot * 3);
if (set)
ios |= flags;
else
ios &= ~flags;
s = splhigh();
*iosp = ios;
tc_mb();
splx(s);
}
#endif
#endif /* DEC_3000_500 */
int
tc_intrnull(val)
void *val;
{
panic("tc_intrnull: uncaught TC intr for cookie %ld\n",
(u_long)val);
}
static int
tc_probe(device_t dev)
{
if((hwrpb->rpb_type != ST_DEC_3000_300) &&
(hwrpb->rpb_type != ST_DEC_3000_500))
return ENXIO;
tc0 = dev;
if(hwrpb->rpb_type == ST_DEC_3000_300) {
device_set_desc(dev, "12.5 Mhz Turbochannel Bus");
} else {
device_set_desc(dev, "25 Mhz Turbochannel Bus");
}
return 0;
}
static int
tc_attach(device_t dev)
{
struct tc_softc* sc = TC_SOFTC(dev);
tc_addr_t tcaddr;
const struct tc_builtin *builtin;
struct tc_attach_args *ta;
int i;
device_t child = NULL;
tc0 = dev;
switch(hwrpb->rpb_type){
#ifdef DEC_3000_300
case ST_DEC_3000_300:
sc->sc_speed = TC_SPEED_12_5_MHZ;
sc->sc_nslots = tc_3000_300_nslots;
sc->sc_slots = tc_3000_300_slots;
sc->nbuiltins = tc_3000_300_nbuiltins;
sc->builtins = tc_3000_300_builtins;
tc_3000_300_intr_setup();
set_iointr(tc_3000_300_iointr);
sc->sc_intr_establish = tc_3000_300_intr_establish;
sc->sc_intr_disestablish = tc_3000_300_intr_disestablish;
break;
#endif /* DEC_3000_500 */
#ifdef DEC_3000_500
case ST_DEC_3000_500:
sc->sc_speed = TC_SPEED_25_MHZ;
sc->sc_nslots = tc_3000_500_nslots;
sc->sc_slots = tc_3000_500_slots;
sc->nbuiltins = tc_3000_500_nbuiltins;
sc->builtins = tc_3000_500_builtins;
tc_3000_500_intr_setup();
set_iointr(tc_3000_500_iointr);
sc->sc_intr_establish = tc_3000_500_intr_establish;
sc->sc_intr_disestablish = tc_3000_500_intr_disestablish;
break;
#endif /* DEC_3000_500 */
default:
panic("tcattach: bad cpu type");
}
/*
* Try to configure each built-in device
*/
for (i = 0; i < sc->nbuiltins; i++) {
builtin = &sc->builtins[i];
tcaddr = sc->sc_slots[builtin->tcb_slot].tcs_addr +
builtin->tcb_offset;
if (tc_badaddr(tcaddr))
continue;
ta = malloc(sizeof(struct tc_attach_args), M_DEVBUF, M_NOWAIT);
if (!ta)
continue;
ta->ta_slot = builtin->tcb_slot;
ta->ta_offset = builtin->tcb_offset;
ta->ta_addr = tcaddr;
ta->ta_cookie = builtin->tcb_cookie;
ta->ta_busspeed = sc->sc_speed;
child = device_add_child(dev, builtin->tcb_modname, 0);
device_set_ivars(child, ta);
device_probe_and_attach(child);
}
return 0;
}
int
tc_checkslot(slotbase, namep)
tc_addr_t slotbase;
char *namep;
{
struct tc_rommap *romp;
int i, j;
for (i = 0; i < NTC_ROMOFFS; i++) {
romp = (struct tc_rommap *)
(slotbase + tc_slot_romoffs[i]);
switch (romp->tcr_width.v) {
case 1:
case 2:
case 4:
break;
default:
continue;
}
if (romp->tcr_stride.v != 4)
continue;
for (j = 0; j < 4; j++)
if (romp->tcr_test[j+0*romp->tcr_stride.v] != 0x55 ||
romp->tcr_test[j+1*romp->tcr_stride.v] != 0x00 ||
romp->tcr_test[j+2*romp->tcr_stride.v] != 0xaa ||
romp->tcr_test[j+3*romp->tcr_stride.v] != 0xff)
continue;
for (j = 0; j < TC_ROM_LLEN; j++)
namep[j] = romp->tcr_modname[j].v;
namep[j] = '\0';
return (1);
}
return (0);
}
void
tc_intr_establish(dev, cookie, level, handler, arg)
struct device *dev;
void *cookie, *arg;
tc_intrlevel_t level;
int (*handler) __P((void *));
{
struct tc_softc *sc = (struct tc_softc *)device_get_softc(dev);
(*sc->sc_intr_establish)(device_get_parent(dev), cookie, level,
handler, arg);
}
void
tc_intr_disestablish(dev, cookie)
struct device *dev;
void *cookie;
{
struct tc_softc *sc = (struct tc_softc *)device_get_softc(dev);
(*sc->sc_intr_disestablish)(device_get_parent(dev), cookie);
}
DRIVER_MODULE(tc, tcasic, tc_driver, tc_devclass, 0, 0);
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