projects / apple / xnu.git / blame
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|---|---|---|
| fe8ab488 A |
1 | /* |
| 2 | * Copyright (c) 2013 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
| 0a7de745 | 5 | * |
| fe8ab488 A |
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. | |
| 0a7de745 | 14 | * |
| fe8ab488 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 0a7de745 | 17 | * |
| fe8ab488 A |
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. | |
| 0a7de745 | 25 | * |
| fe8ab488 A |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 27 | */ | |
| 28 | ||
| 29 | #ifndef _KERN_SFI_H_ | |
| 30 | #define _KERN_SFI_H_ | |
| 31 | ||
| 32 | #include <stdint.h> | |
| 33 | #include <mach/mach_types.h> | |
| 34 | #include <mach/kern_return.h> | |
| 35 | #include <mach/sfi_class.h> | |
| 36 | #include <kern/ast.h> | |
| 37 | #include <kern/kern_types.h> | |
| 38 | #include <kern/ledger.h> | |
| 39 | ||
| 40 | extern void sfi_init(void); | |
| fe8ab488 A |
41 | extern sfi_class_id_t sfi_get_ledger_alias_for_class(sfi_class_id_t class_id); |
| 42 | extern int sfi_ledger_entry_add(ledger_template_t template, sfi_class_id_t class_id); | |
| 43 | ||
| 44 | kern_return_t sfi_set_window(uint64_t window_usecs); | |
| 45 | kern_return_t sfi_window_cancel(void); | |
| 46 | kern_return_t sfi_get_window(uint64_t *window_usecs); | |
| 47 | ||
| 48 | kern_return_t sfi_set_class_offtime(sfi_class_id_t class_id, uint64_t offtime_usecs); | |
| 49 | kern_return_t sfi_class_offtime_cancel(sfi_class_id_t class_id); | |
| 50 | kern_return_t sfi_get_class_offtime(sfi_class_id_t class_id, uint64_t *offtime_usecs); | |
| 51 | ||
| 52 | #ifdef MACH_KERNEL_PRIVATE | |
| 53 | /* | |
| 54 | * Classifying a thread requires no special locks to be held (although attribute | |
| 55 | * changes that cause an inconsistent snapshot may cause a spurious AST). Final | |
| 56 | * evaluation will happen at the AST boundary with the thread locked. If possible, | |
| 0a7de745 | 57 | * |
| fe8ab488 A |
58 | */ |
| 59 | sfi_class_id_t sfi_thread_classify(thread_t thread); | |
| 60 | sfi_class_id_t sfi_processor_active_thread_classify(processor_t processor); | |
| 61 | ast_t sfi_thread_needs_ast(thread_t thread, sfi_class_id_t *out_class /* optional */); | |
| 62 | ast_t sfi_processor_needs_ast(processor_t processor); | |
| 63 | ||
| 64 | void sfi_ast(thread_t thread); | |
| 65 | void sfi_reevaluate(thread_t thread); | |
| 04b8595b | 66 | kern_return_t sfi_defer(uint64_t); |
| fe8ab488 A |
67 | #endif /* MACH_KERNEL_PRIVATE */ |
| 68 | ||
| 69 | #endif /* _KERN_SFI_H_ */ |