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Move lock_machdep.c to arch/x86/x86.

This commit is contained in:
fvdl 2003-03-01 22:53:39 +00:00
parent 0b61283edc
commit f555536d9b
2 changed files with 1 additions and 145 deletions
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3
sys/arch/i386/conf/files.i386
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@ -1,4 +1,4 @@
# $NetBSD: files.i386,v 1.233 2003/03/01 16:37:51 fvdl Exp $
# $NetBSD: files.i386,v 1.234 2003/03/01 22:53:39 fvdl Exp $
#
# new style config file for i386 architecture
#
@ -90,7 +90,6 @@ file arch/i386/i386/vm_machdep.c
file dev/cons.c
file arch/i386/i386/mptramp.S multiprocessor
file arch/i386/i386/lock_machdep.c lockdebug
file arch/i386/i386/ipifuncs.c multiprocessor
file arch/i386/i386/pmc.c perfctrs

143
sys/arch/i386/i386/lock_machdep.c
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@ -1,143 +0,0 @@
/* $NetBSD: lock_machdep.c,v 1.4 2003/02/26 21:28:22 fvdl Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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> /* RCS ID & Copyright macro defns */
/*
* Machine-dependent spin lock operations.
*/
#include "opt_ddb.h"
#include <sys/types.h>
#include <sys/lock.h>
#include <sys/systm.h>
#include <machine/atomic.h>
#include <machine/cpu.h>
#include <ddb/db_output.h>
void
__cpu_simple_lock_init(lockp)
__cpu_simple_lock_t *lockp;
{
*lockp = __SIMPLELOCK_UNLOCKED;
}
#if defined (DEBUG) && defined(DDB)
int spin_limit = 10000000;
__cpu_simple_lock_t *wantlock[X86_MAXPROCS], *gotlock[X86_MAXPROCS];
#endif
void
__cpu_simple_lock(lockp)
__cpu_simple_lock_t *lockp;
{
#if defined (DEBUG)
#if defined(DDB)
int spincount = 0;
int cpu = cpu_number();
int limit = spin_limit * (cpu + 1);
#endif
__cpu_simple_lock_t v = *lockp;
KDASSERT((v == __SIMPLELOCK_LOCKED) || (v == __SIMPLELOCK_UNLOCKED));
#if defined(DDB)
wantlock[cpu] = lockp;
#endif
#endif
while (x86_atomic_testset_i(lockp, __SIMPLELOCK_LOCKED) ==
__SIMPLELOCK_LOCKED) {
#if defined(DEBUG) && defined(DDB)
spincount++;
if (spincount == limit) {
extern int db_active;
spincount = 0;
if (db_active) {
db_printf("cpu%d: spinout while in debugger\n",
cpu);
while (db_active)
;
}
db_printf("cpu%d: spinout\n", cpu);
Debugger();
}
#endif
}
#if defined(DEBUG) && defined(DDB)
wantlock[cpu] = 0;
gotlock[cpu] = lockp;
#endif
__lockbarrier();
}
int
__cpu_simple_lock_try(lockp)
__cpu_simple_lock_t *lockp;
{
int r;
#ifdef DEBUG
__cpu_simple_lock_t v = *lockp;
KDASSERT((v == __SIMPLELOCK_LOCKED) || (v == __SIMPLELOCK_UNLOCKED));
#endif
r = (x86_atomic_testset_i(lockp, __SIMPLELOCK_LOCKED)
== __SIMPLELOCK_UNLOCKED);
__lockbarrier();
return (r);
}
void
__cpu_simple_unlock(lockp)
__cpu_simple_lock_t *lockp;
{
#ifdef DEBUG
__cpu_simple_lock_t v = *lockp;
KDASSERT((v == __SIMPLELOCK_LOCKED) || (v == __SIMPLELOCK_UNLOCKED));
#endif
__lockbarrier();
*lockp = __SIMPLELOCK_UNLOCKED;
}