6a6f30db5a
in order to avoid the invasive probes done by identify-routines of ISA drivers, which may access unassigned addresses or those of unrelated devices and thus in turn can trigger master/target aborts as revealed by r182108 and ahc(4). I think that this is also the cause of the hang previously seen on B100 blades during boot. Bypassing isa_probe_children(9) also avoids adding ISA hints, which just can be wrong for sparc64. Reported by: gavin
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*-
|
|
* Copyright (c) 2001 Jake Burkholder.
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_isa.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/cons.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#ifdef DEV_ISA
|
|
#include <isa/isavar.h>
|
|
extern device_t isa_bus_device;
|
|
#endif
|
|
|
|
static device_t nexusdev;
|
|
|
|
static void configure_first(void *);
|
|
static void configure(void *);
|
|
static void configure_final(void *);
|
|
|
|
SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
|
|
/* SI_ORDER_SECOND is hookable */
|
|
SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
|
|
/* SI_ORDER_MIDDLE is hookable */
|
|
SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
|
|
|
|
/*
|
|
* Determine i/o configuration for a machine.
|
|
*/
|
|
static void
|
|
configure_first(void *dummy)
|
|
{
|
|
|
|
nexusdev = device_add_child(root_bus, "nexus", 0);
|
|
}
|
|
|
|
static void
|
|
configure(void *dummy)
|
|
{
|
|
|
|
#ifdef SUN4V
|
|
intr_restore_all(0x16);
|
|
#endif
|
|
root_bus_configure();
|
|
#ifdef DEV_ISA
|
|
/*
|
|
* We bypass isa_probe_children(9) here in order to avoid
|
|
* invasive probes done by identify-routines of ISA drivers,
|
|
* which in turn can trigger master/target aborts, and the
|
|
* addition of ISA hints, which might erroneously exist.
|
|
*/
|
|
if (isa_bus_device != NULL)
|
|
(void)bus_generic_attach(isa_bus_device);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
configure_final(void *dummy)
|
|
{
|
|
|
|
cninit_finish();
|
|
cold = 0;
|
|
}
|