NetBSD-5.0.2/sys/arch/alpha/tc/tc_3000_500.c
/* $NetBSD: tc_3000_500.c,v 1.25 2002/09/27 15:35:39 provos Exp $ */
/*
* 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 <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tc_3000_500.c,v 1.25 2002/09/27 15:35:39 provos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/autoconf.h>
#include <machine/pte.h>
#include <machine/rpb.h>
#include <dev/tc/tcvar.h>
#include <alpha/tc/tc_conf.h>
#include <alpha/tc/tc_3000_500.h>
#include "wsdisplay.h"
#include "sfb.h"
#if NSFB > 0
extern int sfb_cnattach __P((tc_addr_t));
#endif
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));
int tc_3000_500_intrnull __P((void *));
int tc_3000_500_fb_cnattach __P((u_int64_t));
#define C(x) ((void *)(u_long)x)
#define KV(x) (ALPHA_PHYS_TO_K0SEG(x))
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_graphics_builtins[] = {
{ "FLAMG-IO", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), },
{ "PMAGB-BA", 7, 0x02000000, C(TC_3000_500_DEV_CXTURBO), },
{ "PMAZ-DS ", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), },
};
int tc_3000_500_graphics_nbuiltins = sizeof(tc_3000_500_graphics_builtins) /
sizeof(tc_3000_500_graphics_builtins[0]);
struct tc_builtin tc_3000_500_nographics_builtins[] = {
{ "FLAMG-IO", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), },
{ "PMAZ-DS ", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), },
};
int tc_3000_500_nographics_nbuiltins = sizeof(tc_3000_500_nographics_builtins) /
sizeof(tc_3000_500_nographics_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 {
int (*tci_func) __P((void *));
void *tci_arg;
struct evcnt tci_evcnt;
} tc_3000_500_intr[TC_3000_500_NCOOKIES];
u_int32_t tc_3000_500_imask; /* intrs we want to ignore; mirrors IMR. */
void
tc_3000_500_intr_setup()
{
char *cp;
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_3000_500_intrnull;
tc_3000_500_intr[i].tci_arg = (void *)i;
cp = malloc(12, M_DEVBUF, M_NOWAIT);
if (cp == NULL)
panic("tc_3000_500_intr_setup");
sprintf(cp, "slot %lu", i);
evcnt_attach_dynamic(&tc_3000_500_intr[i].tci_evcnt,
EVCNT_TYPE_INTR, NULL, "tc", cp);
}
}
const struct evcnt *
tc_3000_500_intr_evcnt(tcadev, cookie)
struct device *tcadev;
void *cookie;
{
u_long dev = (u_long)cookie;
#ifdef DIAGNOSTIC
/* XXX bounds-check cookie. */
#endif
return (&tc_3000_500_intr[dev].tci_evcnt);
}
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_3000_500_intrnull)
panic("tc_3000_500_intr_establish: cookie %lu 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_3000_500_intrnull)
panic("tc_3000_500_intr_disestablish: cookie %lu 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_3000_500_intrnull;
tc_3000_500_intr[dev].tci_arg = (void *)dev;
}
int
tc_3000_500_intrnull(val)
void *val;
{
panic("tc_3000_500_intrnull: uncaught TC intr for cookie %ld",
(u_long)val);
}
void
tc_3000_500_iointr(arg, vec)
void *arg;
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 INCRINTRCNT(slot) tc_3000_500_intr[slot].tci_evcnt.ev_count++
#define CHECKINTR(slot) \
if (ir & tc_3000_500_intrbits[slot]) { \
ifound = 1; \
INCRINTRCNT(slot); \
(*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 NWSDISPLAY > 0
/*
* tc_3000_500_fb_cnattach --
* Attempt to map the CTB output device to a slot and attach the
* framebuffer as the output side of the console.
*/
int
tc_3000_500_fb_cnattach(turbo_slot)
u_int64_t turbo_slot;
{
u_int32_t output_slot;
output_slot = turbo_slot & 0xffffffff;
if (output_slot >= tc_3000_500_nslots) {
return EINVAL;
}
if (hwrpb->rpb_variation & SV_GRAPHICS) {
if (output_slot == 0) {
#if NSFB > 0
sfb_cnattach(KV(0x1e0000000) + 0x02000000);
return 0;
#else
return ENXIO;
#endif
}
} else {
/*
* Slots 0-2 in the tc_3000_500_slots array are only
* on the 500 models that also have the CXTurbo
* (500/800/900) and a total of 6 TC slots. For the
* 400/600/700, slots 0-2 are in table locations 3-5, so
* offset the CTB slot by 3 to get the address in our table.
*/
output_slot += 3;
}
return tc_fb_cnattach(tc_3000_500_slots[output_slot-1].tcs_addr);
}
#endif /* NWSDISPLAY */
#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