1 | /* |
2 | * Copyright (c) 2021 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 | |
33 | #include <stdbool.h> |
34 | #include <stdint.h> |
35 | |
36 | #ifndef KERN_SCHED_HYGIENE_DEBUG |
37 | #define KERN_SCHED_HYGIENE_DEBUG |
38 | |
39 | #if SCHED_HYGIENE_DEBUG |
40 | |
41 | #if !DEVELOPMENT && !DEBUG |
42 | #error SCHED_HYGIENE_DEBUG defined without DEVELOPMENT/DEBUG |
43 | #endif |
44 | |
45 | #include <mach/mach_types.h> |
46 | |
47 | #include <kern/startup.h> |
48 | |
49 | typedef enum sched_hygiene_mode { |
50 | SCHED_HYGIENE_MODE_OFF = 0, |
51 | SCHED_HYGIENE_MODE_TRACE = 1, |
52 | SCHED_HYGIENE_MODE_PANIC = 2, |
53 | } sched_hygiene_mode_t; |
54 | |
55 | extern boolean_t sched_hygiene_debug_pmc; |
56 | |
57 | extern sched_hygiene_mode_t sched_preemption_disable_debug_mode; |
58 | |
59 | MACHINE_TIMEOUT_SPEC_DECL(sched_preemption_disable_threshold_mt); |
60 | extern machine_timeout_t sched_preemption_disable_threshold_mt; |
61 | |
62 | __attribute__((noinline)) void _prepare_preemption_disable_measurement(void); |
63 | __attribute__((noinline)) void _collect_preemption_disable_measurement(void); |
64 | |
65 | extern sched_hygiene_mode_t interrupt_masked_debug_mode; |
66 | |
67 | MACHINE_TIMEOUT_SPEC_DECL(interrupt_masked_timeout); |
68 | MACHINE_TIMEOUT_SPEC_DECL(stackshot_interrupt_masked_timeout); |
69 | |
70 | extern machine_timeout_t interrupt_masked_timeout; |
71 | extern machine_timeout_t stackshot_interrupt_masked_timeout; |
72 | |
73 | extern bool sched_hygiene_nonspec_tb; |
74 | |
75 | #define ml_get_sched_hygiene_timebase() (sched_hygiene_nonspec_tb ? ml_get_timebase() : ml_get_speculative_timebase()) |
76 | |
77 | extern bool kprintf_spam_mt_pred(struct machine_timeout_spec const *spec); |
78 | |
79 | #endif /* SCHED_HYGIENE_DEBUG */ |
80 | |
81 | #endif /* KERN_SCHED_HYGIENE_DEBUG */ |
82 | |