1/*
2 * Copyright (c) 2003-2007 Apple 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
29
30#include <mach/mach_types.h>
31#include <mach/mach_host.h>
32
33#include <kern/host.h>
34#include <kern/processor.h>
35#include <kern/cpu_data.h>
36#include <kern/machine.h>
37#include <machine/machine_routines.h>
38
39#include <chud/chud_xnu.h>
40
41#if 0
42#pragma mark **** cpu count ****
43#endif
44
45__private_extern__ int
46chudxnu_logical_cpu_count(void)
47{
48	return machine_info.logical_cpu_max;
49}
50
51__private_extern__ int
52chudxnu_phys_cpu_count(void)
53{
54    host_basic_info_data_t hinfo;
55    kern_return_t kr;
56    mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
57
58    kr = host_info(host_self(), HOST_BASIC_INFO, (integer_t *)&hinfo, &count);
59    if(kr == KERN_SUCCESS) {
60        return hinfo.max_cpus;
61    } else {
62        return 1;  // fall back to 1, 0 doesn't make sense at all
63    }
64}
65
66__private_extern__ int
67chudxnu_cpu_number(void)
68{
69    return cpu_number();
70}
71
72#if 0
73#pragma mark **** interrupts enable/disable ****
74#endif
75
76__private_extern__ boolean_t
77chudxnu_set_interrupts_enabled(boolean_t enable)
78{
79    return ml_set_interrupts_enabled(enable);
80}
81
82__private_extern__ void
83chudxnu_cause_interrupt(void)
84{
85    ml_cause_interrupt();
86}
87
88#if 0
89#pragma mark **** preemption enable/disable ****
90#endif
91
92__private_extern__ void
93chudxnu_enable_preemption(void)
94{
95	enable_preemption();
96}
97
98__private_extern__ void
99chudxnu_disable_preemption(void)
100{
101	disable_preemption();
102}
103
104__private_extern__ int
105chudxnu_get_preemption_level(void)
106{
107	return get_preemption_level();
108}
109
110