From f07a4c844da9f0ecae5bbee1ab94be56505f26f7 Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Tue, 25 Feb 1997 21:28:37 +0000 Subject: Initial source --- kern/cpu_number.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 kern/cpu_number.h (limited to 'kern/cpu_number.h') diff --git a/kern/cpu_number.h b/kern/cpu_number.h new file mode 100644 index 00000000..32d83239 --- /dev/null +++ b/kern/cpu_number.h @@ -0,0 +1,43 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ + +#ifndef _KERN_CPU_NUMBER_H_ +#define _KERN_CPU_NUMBER_H_ + +#include + +/* + * Definitions for cpu identification in multi-processors. + */ + +int master_cpu; /* 'master' processor - keeps time */ + +#if (NCPUS == 1) + /* cpu number is always 0 on a single processor system */ +#define cpu_number() (0) + +#endif /* NCPUS == 1 */ +#endif /* _KERN_CPU_NUMBER_H_ */ -- cgit v1.2.3