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