| | 1 | /* |
| | 2 | * Copyright (c) 2017 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 | #ifndef MACHINE_MONOTONIC_H |
| | 29 | #define MACHINE_MONOTONIC_H |
| | 30 | |
| | 31 | #if defined(__x86_64__) |
| | 32 | #include <x86_64/monotonic.h> |
| | 33 | #elif defined(__arm64__) |
| | 34 | #include <arm64/monotonic.h> |
| | 35 | #elif defined(__arm__) |
| | 36 | #include <arm/monotonic.h> |
| | 37 | #else |
| | 38 | #error unsupported architecture |
| | 39 | #endif |
| | 40 | |
| | 41 | #include <stdatomic.h> |
| | 42 | #include <stdbool.h> |
| | 43 | #include <stdint.h> |
| | 44 | |
| | 45 | extern bool mt_core_supported; |
| | 46 | |
| | 47 | struct mt_cpu { |
| | 48 | uint64_t mtc_snaps[MT_CORE_NFIXED]; |
| | 49 | uint64_t mtc_counts[MT_CORE_NFIXED]; |
| | 50 | uint64_t mtc_counts_last[MT_CORE_NFIXED]; |
| | 51 | uint64_t mtc_npmis; |
| | 52 | /* |
| | 53 | * Whether this CPU should be using PMCs. |
| | 54 | */ |
| | 55 | bool mtc_active; |
| | 56 | }; |
| | 57 | |
| | 58 | struct mt_thread { |
| | 59 | _Atomic uint64_t mth_gen; |
| | 60 | uint64_t mth_counts[MT_CORE_NFIXED]; |
| | 61 | }; |
| | 62 | |
| | 63 | struct mt_task { |
| | 64 | uint64_t mtk_counts[MT_CORE_NFIXED]; |
| | 65 | }; |
| | 66 | |
| | 67 | struct mt_cpu *mt_cur_cpu(void); |
| | 68 | |
| | 69 | uint64_t mt_count_pmis(void); |
| | 70 | void mt_mtc_update_fixed_counts(struct mt_cpu *mtc, uint64_t *counts, |
| | 71 | uint64_t *counts_since); |
| | 72 | uint64_t mt_mtc_update_count(struct mt_cpu *mtc, unsigned int ctr); |
| | 73 | uint64_t mt_core_snap(unsigned int ctr); |
| | 74 | void mt_core_set_snap(unsigned int ctr, uint64_t snap); |
| | 75 | void mt_mtc_set_snap(struct mt_cpu *mtc, unsigned int ctr, uint64_t snap); |
| | 76 | |
| | 77 | typedef void (*mt_pmi_fn)(bool user_mode, void *ctx); |
| | 78 | extern bool mt_microstackshots; |
| | 79 | extern unsigned int mt_microstackshot_ctr; |
| | 80 | extern mt_pmi_fn mt_microstackshot_pmi_handler; |
| | 81 | extern void *mt_microstackshot_ctx; |
| | 82 | extern uint64_t mt_core_reset_values[MT_CORE_NFIXED]; |
| | 83 | int mt_microstackshot_start_arch(uint64_t period); |
| | 84 | |
| | 85 | #endif /* !defined(MACHINE_MONOTONIC_H) */ |
projects / apple / xnu.git / blame_incremental