osfmk/i386/machine_cpu.h

   1 /*
   2  * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 #ifndef _I386_MACHINE_CPU_H_
  24 #define _I386_MACHINE_CPU_H_
  25
  26 #include <mach/mach_types.h>
  27 #include <mach/boolean.h>
  28 #include <kern/kern_types.h>
  29 #include <pexpert/pexpert.h>
  30 #include <sys/cdefs.h>
  31
  32 __BEGIN_DECLS
  33 void    cpu_machine_init(
  34         void);
  35
  36 struct i386_interrupt_state;
  37 void    cpu_signal_handler(
  38         struct i386_interrupt_state *regs);
  39
  40 kern_return_t cpu_register(
  41         int *slot_nump);
  42 __END_DECLS
  43
  44 static inline void cpu_halt(void)
  45 {
  46         asm volatile( "cli; hlt" );
  47 }
  48
  49 static inline void cpu_pause(void)
  50 {
  51         asm volatile( "rep; nop" );
  52 }
  53
  54 #endif /* _I386_MACHINE_CPU_H_ */