66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2001 Wind River Systems, Inc.
|
||
|
|
* All rights reserved.
|
||
|
|
* Written by: John Baldwin <jhb@FreeBSD.org>
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
||
|
|
* may 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.
|
||
|
|
*
|
||
|
|
* $FreeBSD$
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This module provides MI support for per-cpu data.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <sys/systm.h>
|
||
|
|
#include <sys/pcpu.h>
|
||
|
|
|
||
|
|
static struct globaldata *cpuid_to_globaldata[MAXCPU];
|
||
|
|
struct cpuhead cpuhead = SLIST_HEAD_INITIALIZER(cpuhead);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Register a struct globaldata.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
globaldata_register(struct globaldata *globaldata)
|
||
|
|
{
|
||
|
|
|
||
|
|
KASSERT(globaldata->gd_cpuid >= 0 && globaldata->gd_cpuid < MAXCPU,
|
||
|
|
("globaldata_register: invalid cpuid"));
|
||
|
|
cpuid_to_globaldata[globaldata->gd_cpuid] = globaldata;
|
||
|
|
SLIST_INSERT_HEAD(&cpuhead, globaldata, gd_allcpu);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Locate a struct globaldata by cpu id.
|
||
|
|
*/
|
||
|
|
struct globaldata *
|
||
|
|
globaldata_find(u_int cpuid)
|
||
|
|
{
|
||
|
|
|
||
|
|
return (cpuid_to_globaldata[cpuid]);
|
||
|
|
}
|