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