mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
351 lines
8.8 KiB
C
351 lines
8.8 KiB
C
/* $Id */
|
|
/* $NetBSD: tlsb.c,v 1.10 1998/05/14 00:01:32 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997 by Matthew Jacob
|
|
* NASA AMES Research Center.
|
|
* All rights reserved.
|
|
*
|
|
* Based in part upon a prototype version by Jason Thorpe
|
|
* Copyright (c) 1996 by Jason Thorpe.
|
|
*
|
|
* 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 immediately at the beginning of the file, without modification,
|
|
* 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. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
*/
|
|
|
|
/*
|
|
* Autoconfiguration and support routines for the TurboLaser System Bus
|
|
* found on AlphaServer 8200 and 8400 systems.
|
|
*/
|
|
|
|
#include "opt_simos.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 <machine/cpuconf.h>
|
|
|
|
#include <alpha/tlsb/tlsbreg.h>
|
|
#include <alpha/tlsb/tlsbvar.h>
|
|
|
|
/* #include "locators.h" */
|
|
|
|
extern int cputype;
|
|
|
|
#define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr)))
|
|
|
|
/*
|
|
* The structure used to attach devices to the TurboLaser.
|
|
*/
|
|
struct tlsb_device {
|
|
int td_node; /* node number */
|
|
u_int16_t td_dtype; /* device type */
|
|
u_int8_t td_swrev; /* software revision */
|
|
u_int8_t td_hwrev; /* hardware revision */
|
|
};
|
|
#define DEVTOTLSB(dev) ((struct tlsb_device*) device_get_ivars(dev))
|
|
|
|
struct intr_mapping {
|
|
STAILQ_ENTRY(intr_mapping) queue;
|
|
driver_intr_t* intr;
|
|
void* arg;
|
|
};
|
|
|
|
struct tlsb_softc {
|
|
STAILQ_HEAD(, intr_mapping) intr_handlers;
|
|
};
|
|
|
|
static char *tlsb_node_type_str(u_int32_t);
|
|
static void tlsb_intr(void* frame, u_long vector);
|
|
|
|
/* There can be only one. */
|
|
static int tlsb_found;
|
|
static struct tlsb_softc* tlsb0_softc;
|
|
static devclass_t tlsb_devclass;
|
|
|
|
/*
|
|
* Device methods
|
|
*/
|
|
static int tlsb_probe(device_t dev);
|
|
static void tlsb_print_child(device_t dev, device_t child);
|
|
static int tlsb_read_ivar(device_t dev, device_t child, int which, u_long* result);
|
|
static int tlsb_setup_intr(device_t dev, device_t child,
|
|
struct resource *irq, int flags,
|
|
driver_intr_t *intr, void *arg, void **cookiep);
|
|
static int tlsb_teardown_intr(device_t dev, device_t child,
|
|
struct resource *irq, void *cookie);
|
|
|
|
static device_method_t tlsb_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, tlsb_probe),
|
|
DEVMETHOD(device_attach, bus_generic_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, tlsb_print_child),
|
|
DEVMETHOD(bus_read_ivar, tlsb_read_ivar),
|
|
DEVMETHOD(bus_write_ivar, bus_generic_write_ivar),
|
|
DEVMETHOD(bus_setup_intr, tlsb_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, tlsb_teardown_intr),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t tlsb_driver = {
|
|
"tlsb",
|
|
tlsb_methods,
|
|
sizeof(struct tlsb_softc),
|
|
};
|
|
|
|
/*
|
|
* At 'probe' time, we add all the devices which we know about to the
|
|
* bus. The generic attach routine will probe and attach them if they
|
|
* are alive.
|
|
*/
|
|
static int
|
|
tlsb_probe(device_t dev)
|
|
{
|
|
struct tlsb_softc* sc = device_get_softc(dev);
|
|
struct tlsb_device *tdev;
|
|
u_int32_t tldev;
|
|
u_int8_t vid;
|
|
int node;
|
|
device_t child;
|
|
|
|
device_set_desc(dev, "TurboLaser bus");
|
|
|
|
STAILQ_INIT(&sc->intr_handlers);
|
|
tlsb0_softc = sc;
|
|
|
|
set_iointr(tlsb_intr);
|
|
|
|
printf("Probing for devices on the TurboLaser bus:\n");
|
|
|
|
tlsb_found = 1;
|
|
|
|
/*
|
|
* Attempt to find all devices on the bus, including
|
|
* CPUs, memory modules, and I/O modules.
|
|
*/
|
|
|
|
/*
|
|
* Sigh. I would like to just start off nicely,
|
|
* but I need to treat I/O modules differently-
|
|
* The highest priority I/O node has to be in
|
|
* node #8, and I want to find it *first*, since
|
|
* it will have the primary disks (most likely)
|
|
* on it.
|
|
*/
|
|
/*
|
|
* XXX dfr: I don't see why I need to do this
|
|
*/
|
|
for (node = 0; node <= TLSB_NODE_MAX; ++node) {
|
|
/*
|
|
* Check for invalid address. This may not really
|
|
* be necessary, but what the heck...
|
|
*/
|
|
if (badaddr(TLSB_NODE_REG_ADDR(node, TLDEV), sizeof(u_int32_t)))
|
|
continue;
|
|
tldev = TLSB_GET_NODEREG(node, TLDEV);
|
|
#ifdef SIMOS
|
|
if (node != 0 && node != 8)
|
|
continue;
|
|
#endif
|
|
if (tldev == 0) {
|
|
/* Nothing at this node. */
|
|
continue;
|
|
}
|
|
#if 0
|
|
if (TLDEV_ISIOPORT(tldev))
|
|
continue; /* not interested right now */
|
|
#endif
|
|
|
|
tdev = (struct tlsb_device*)
|
|
malloc(sizeof(struct tlsb_device),
|
|
M_DEVBUF, M_NOWAIT);
|
|
|
|
if (!tdev)
|
|
continue;
|
|
|
|
tdev->td_node = node;
|
|
#ifdef SIMOS
|
|
if (node == 0)
|
|
tdev->td_dtype = TLDEV_DTYPE_SCPU4;
|
|
else if (node == 8)
|
|
tdev->td_dtype = TLDEV_DTYPE_KFTIA;
|
|
#else
|
|
tdev->td_dtype = TLDEV_DTYPE(tldev);
|
|
#endif
|
|
tdev->td_swrev = TLDEV_SWREV(tldev);
|
|
tdev->td_hwrev = TLDEV_HWREV(tldev);
|
|
|
|
child = device_add_child(dev, NULL, -1, tdev);
|
|
device_set_desc(child, tlsb_node_type_str(tdev->td_dtype));
|
|
|
|
/*
|
|
* Deal with hooking CPU instances to TurboLaser nodes.
|
|
*/
|
|
if (TLDEV_ISCPU(tldev)) {
|
|
printf("%s%d node %d: %s",
|
|
device_get_name(dev), device_get_unit(dev),
|
|
node, tlsb_node_type_str(tldev));
|
|
|
|
/*
|
|
* Hook in the first CPU unit.
|
|
*/
|
|
vid = (TLSB_GET_NODEREG(node, TLVID) &
|
|
TLVID_VIDA_MASK) >> TLVID_VIDA_SHIFT;
|
|
printf(", VID %d\n", vid);
|
|
TLSB_PUT_NODEREG(node, TLCPUMASK, (1<<vid));
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
tlsb_print_child(device_t dev, device_t child)
|
|
{
|
|
struct tlsb_device* tdev = DEVTOTLSB(child);
|
|
|
|
printf(" at %s%d node %d",
|
|
device_get_name(dev),
|
|
device_get_unit(dev),
|
|
tdev->td_node);
|
|
}
|
|
|
|
static int
|
|
tlsb_read_ivar(device_t dev, device_t child,
|
|
int index, u_long* result)
|
|
{
|
|
struct tlsb_device* tdev = DEVTOTLSB(child);
|
|
|
|
switch (index) {
|
|
case TLSB_IVAR_NODE:
|
|
*result = tdev->td_node;
|
|
break;
|
|
|
|
case TLSB_IVAR_DTYPE:
|
|
*result = tdev->td_dtype;
|
|
break;
|
|
|
|
case TLSB_IVAR_SWREV:
|
|
*result = tdev->td_swrev;
|
|
break;
|
|
|
|
case TLSB_IVAR_HWREV:
|
|
*result = tdev->td_hwrev;
|
|
break;
|
|
}
|
|
return ENOENT;
|
|
}
|
|
|
|
static int
|
|
tlsb_setup_intr(device_t dev, device_t child,
|
|
struct resource *irq, int flags,
|
|
driver_intr_t *intr, void *arg, void **cookiep)
|
|
{
|
|
struct tlsb_softc* sc = device_get_softc(dev);
|
|
struct intr_mapping* i;
|
|
i = malloc(sizeof(struct intr_mapping), M_DEVBUF, M_NOWAIT);
|
|
if (!i)
|
|
return ENOMEM;
|
|
i->intr = intr;
|
|
i->arg = arg;
|
|
STAILQ_INSERT_TAIL(&sc->intr_handlers, i, queue);
|
|
*cookiep = i;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
tlsb_teardown_intr(device_t dev, device_t child,
|
|
struct resource *irq, void *cookie)
|
|
{
|
|
struct tlsb_softc* sc = device_get_softc(dev);
|
|
struct intr_mapping* i = cookie;
|
|
|
|
STAILQ_REMOVE(&sc->intr_handlers, i, intr_mapping, queue);
|
|
free(i, M_DEVBUF);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
tlsb_intr(void* frame, u_long vector)
|
|
{
|
|
struct tlsb_softc* sc = tlsb0_softc;
|
|
struct intr_mapping* i;
|
|
|
|
/*
|
|
* XXX for SimOS, broadcast the interrupt. A real implementation
|
|
* will decode the vector to extract node and host etc.
|
|
*/
|
|
for (i = STAILQ_FIRST(&sc->intr_handlers);
|
|
i; i = STAILQ_NEXT(i, queue))
|
|
i->intr(i->arg);
|
|
}
|
|
|
|
DRIVER_MODULE(tlsb, root, tlsb_driver, tlsb_devclass, 0, 0);
|
|
|
|
static char *
|
|
tlsb_node_type_str(u_int32_t dtype)
|
|
{
|
|
static char tlsb_line[64];
|
|
|
|
switch (dtype & TLDEV_DTYPE_MASK) {
|
|
case TLDEV_DTYPE_KFTHA:
|
|
return ("KFTHA I/O interface");
|
|
|
|
case TLDEV_DTYPE_KFTIA:
|
|
return ("KFTIA I/O interface");
|
|
|
|
case TLDEV_DTYPE_MS7CC:
|
|
return ("MS7CC Memory Module");
|
|
|
|
case TLDEV_DTYPE_SCPU4:
|
|
return ("Single CPU, 4MB cache");
|
|
|
|
case TLDEV_DTYPE_SCPU16:
|
|
return ("Single CPU, 16MB cache");
|
|
|
|
case TLDEV_DTYPE_DCPU4:
|
|
return ("Dual CPU, 4MB cache");
|
|
|
|
case TLDEV_DTYPE_DCPU16:
|
|
return ("Dual CPU, 16MB cache");
|
|
|
|
default:
|
|
bzero(tlsb_line, sizeof(tlsb_line));
|
|
snprintf(tlsb_line, sizeof(tlsb_line),
|
|
"unknown, dtype 0x%x", dtype);
|
|
return (tlsb_line);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|