/*- * Copyright (c) 1999 Luoqi Chen * 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: src/sys/alpha/include/globals.h,v 1.4 2000/11/15 21:58:02 jhb Exp $ */ #ifndef _MACHINE_GLOBALS_H_ #define _MACHINE_GLOBALS_H_ #ifdef _KERNEL #include #include #define GLOBALP ((struct globaldata *) powerpc_get_sprg2()) #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 CURTHD PCPU_GET(curproc) /* temporary */ #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 witness_spin_check PCPU_GET(witness_spin_check) #endif /* _KERNEL */ #endif /* !_MACHINE_GLOBALS_H_ */