0384fff8c5
include: * Mutual exclusion is used instead of spl*(). See mutex(9). (Note: The alpha port is still in transition and currently uses both.) * Per-CPU idle processes. * Interrupts are run in their own separate kernel threads and can be preempted (i386 only). Partially contributed by: BSDi (BSD/OS) Submissions by (at least): cp, dfr, dillon, grog, jake, jhb, sheldonh
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*-
|
|
* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_GLOBALS_H_
|
|
#define _MACHINE_GLOBALS_H_
|
|
|
|
#ifdef _KERNEL
|
|
|
|
register struct globaldata *globalp __asm__("$8");
|
|
|
|
#if 1
|
|
#define GLOBALP globalp
|
|
#else
|
|
#define GLOBALP ((struct globaldata *) alpha_pal_rdval())
|
|
#endif
|
|
|
|
#define PCPU_GET(name) (GLOBALP->gd_##name)
|
|
#define PCPU_SET(name,value) (GLOBALP->gd_##name = (value))
|
|
|
|
/*
|
|
* The following set of macros works for UP kernel as well, but for maximum
|
|
* performance we allow the global variables to be accessed directly. On the
|
|
* other hand, kernel modules should always use these macros to maintain
|
|
* portability between UP and SMP kernels.
|
|
*/
|
|
#define CURPROC PCPU_GET(curproc)
|
|
#define curproc PCPU_GET(curproc)
|
|
#define idleproc PCPU_GET(idleproc)
|
|
#define curpcb PCPU_GET(curpcb)
|
|
#define fpcurproc PCPU_GET(fpcurproc)
|
|
#define switchtime PCPU_GET(switchtime)
|
|
#define switchticks PCPU_GET(switchticks)
|
|
#define cpuid PCPU_GET(cpuno)
|
|
#define prevproc PCPU_GET(curproc) /* XXX - until ithreads */
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* !_MACHINE_GLOBALS_H_ */
|