| | 1 | /* |
| | 2 | * Copyright (c) 2000-2008 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 | * @OSF_COPYRIGHT@ |
| | 30 | */ |
| | 31 | |
| | 32 | #ifndef _KERN_MACHINE_H_ |
| | 33 | #define _KERN_MACHINE_H_ |
| | 34 | |
| | 35 | #include <mach/kern_return.h> |
| | 36 | #include <mach/processor_info.h> |
| | 37 | #include <kern/kern_types.h> |
| | 38 | #include <kern/thread_group.h> |
| | 39 | |
| | 40 | #include <kern/work_interval.h> |
| | 41 | |
| | 42 | #include <kern/sched_urgency.h> |
| | 43 | |
| | 44 | /* |
| | 45 | * Machine support declarations. |
| | 46 | */ |
| | 47 | |
| | 48 | extern void processor_up( |
| | 49 | processor_t processor); |
| | 50 | |
| | 51 | extern void processor_offline( |
| | 52 | processor_t processor); |
| | 53 | |
| | 54 | extern void processor_start_thread(void *machine_param); |
| | 55 | |
| | 56 | /* |
| | 57 | * Must be implemented in machine dependent code. |
| | 58 | */ |
| | 59 | |
| | 60 | /* Initialize machine dependent ast code */ |
| | 61 | extern void init_ast_check( |
| | 62 | processor_t processor); |
| | 63 | |
| | 64 | /* Cause check for ast */ |
| | 65 | extern void cause_ast_check( |
| | 66 | processor_t processor); |
| | 67 | |
| | 68 | extern kern_return_t cpu_control( |
| | 69 | int slot_num, |
| | 70 | processor_info_t info, |
| | 71 | unsigned int count); |
| | 72 | |
| | 73 | extern void cpu_sleep(void); |
| | 74 | |
| | 75 | extern kern_return_t cpu_start( |
| | 76 | int slot_num); |
| | 77 | |
| | 78 | extern void cpu_exit_wait( |
| | 79 | int slot_num); |
| | 80 | |
| | 81 | extern boolean_t cpu_can_exit( |
| | 82 | int slot_num); |
| | 83 | |
| | 84 | extern kern_return_t cpu_info( |
| | 85 | processor_flavor_t flavor, |
| | 86 | int slot_num, |
| | 87 | processor_info_t info, |
| | 88 | unsigned int *count); |
| | 89 | |
| | 90 | extern kern_return_t cpu_info_count( |
| | 91 | processor_flavor_t flavor, |
| | 92 | unsigned int *count); |
| | 93 | |
| | 94 | extern thread_t machine_processor_shutdown( |
| | 95 | thread_t thread, |
| | 96 | void (*doshutdown)(processor_t), |
| | 97 | processor_t processor); |
| | 98 | |
| | 99 | extern void machine_idle(void); |
| | 100 | |
| | 101 | extern void machine_track_platform_idle(boolean_t); |
| | 102 | |
| | 103 | /* Signals a processor to bring it out of idle */ |
| | 104 | extern void machine_signal_idle( |
| | 105 | processor_t processor); |
| | 106 | |
| | 107 | /* Signals a processor to bring it out of idle unless canceled */ |
| | 108 | extern void machine_signal_idle_deferred( |
| | 109 | processor_t processor); |
| | 110 | |
| | 111 | /* Cancels an outstanding machine_signal_idle_deferred, if this is supported */ |
| | 112 | extern void machine_signal_idle_cancel( |
| | 113 | processor_t processor); |
| | 114 | |
| | 115 | extern void halt_cpu(void); |
| | 116 | |
| | 117 | extern void halt_all_cpus( |
| | 118 | boolean_t reboot); |
| | 119 | |
| | 120 | extern char *machine_boot_info( |
| | 121 | char *buf, |
| | 122 | vm_size_t buf_len); |
| | 123 | |
| | 124 | /* |
| | 125 | * Machine-dependent routine to fill in an array with up to callstack_max |
| | 126 | * levels of return pc information. |
| | 127 | */ |
| | 128 | extern void machine_callstack( |
| | 129 | uintptr_t *buf, |
| | 130 | vm_size_t callstack_max); |
| | 131 | |
| | 132 | extern void consider_machine_collect(void); |
| | 133 | |
| | 134 | /* |
| | 135 | * Machine-dependent routine to inform platform layer and external |
| | 136 | * CPU power management about context switches |
| | 137 | */ |
| | 138 | |
| | 139 | extern void machine_thread_going_on_core(thread_t new_thread, |
| | 140 | thread_urgency_t urgency, |
| | 141 | uint64_t sched_latency, |
| | 142 | uint64_t same_pri_latency, |
| | 143 | uint64_t dispatch_time); |
| | 144 | |
| | 145 | extern void machine_thread_going_off_core(thread_t old_thread, boolean_t thread_terminating, |
| | 146 | uint64_t last_dispatch, boolean_t thread_runnable); |
| | 147 | |
| | 148 | extern void machine_max_runnable_latency(uint64_t bg_max_latency, |
| | 149 | uint64_t default_max_latency, |
| | 150 | uint64_t realtime_max_latency); |
| | 151 | |
| | 152 | extern void machine_work_interval_notify(thread_t thread, struct kern_work_interval_args* kwi_args); |
| | 153 | |
| | 154 | |
| | 155 | extern void machine_perfcontrol_deadline_passed(uint64_t deadline); |
| | 156 | |
| | 157 | extern void machine_switch_perfcontrol_context(perfcontrol_event event, |
| | 158 | uint64_t timestamp, |
| | 159 | uint32_t flags, |
| | 160 | uint64_t new_thread_same_pri_latency, |
| | 161 | thread_t old, |
| | 162 | thread_t new); |
| | 163 | |
| | 164 | extern void machine_switch_perfcontrol_state_update(perfcontrol_event event, |
| | 165 | uint64_t timestamp, |
| | 166 | uint32_t flags, |
| | 167 | thread_t thread); |
| | 168 | |
| | 169 | |
| | 170 | #endif /* _KERN_MACHINE_H_ */ |
projects / apple / xnu.git / blame_incremental