1 /*
2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_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. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28 #ifndef _I386_MACHINE_CPU_H_
29 #define _I386_MACHINE_CPU_H_
30
31 #include <mach/mach_types.h>
32 #include <mach/boolean.h>
33 #include <kern/kern_types.h>
34 #include <pexpert/pexpert.h>
35 #include <sys/cdefs.h>
36
37 __BEGIN_DECLS
38 void cpu_machine_init(
39 void);
40
41 void handle_pending_TLB_flushes(
42 void);
43
44 int cpu_signal_handler(x86_saved_state_t *regs);
45
46 kern_return_t cpu_register(
47 int *slot_nump);
48 __END_DECLS
49
50 static inline void
cpu_halt(void)51 cpu_halt(void)
52 {
53 asm volatile ( "wbinvd; cli; hlt");
54 }
55
56 static inline void
cpu_pause(void)57 cpu_pause(void)
58 {
59 __builtin_ia32_pause();
60 }
61
62 #endif /* _I386_MACHINE_CPU_H_ */
63