/* * Copyright (c) 2017 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef MACHINE_MONOTONIC_H #define MACHINE_MONOTONIC_H #if defined(__x86_64__) #include <x86_64/monotonic.h> #elif defined(__arm64__) #include <arm64/monotonic.h> #elif defined(__arm__) #include <arm/monotonic.h> #else #error unsupported architecture #endif #include <stdatomic.h> #include <stdbool.h> #include <stdint.h> extern bool mt_core_supported; struct mt_cpu { uint64_t mtc_snaps[MT_CORE_NFIXED]; uint64_t mtc_counts[MT_CORE_NFIXED]; uint64_t mtc_counts_last[MT_CORE_NFIXED]; }; struct mt_thread { _Atomic uint64_t mth_gen; uint64_t mth_counts[MT_CORE_NFIXED]; }; struct mt_task { uint64_t mtk_counts[MT_CORE_NFIXED]; }; struct mt_cpu *mt_cur_cpu(void); void mt_mtc_update_fixed_counts(struct mt_cpu *mtc, uint64_t *counts, uint64_t *counts_since); uint64_t mt_mtc_update_count(struct mt_cpu *mtc, unsigned int ctr); uint64_t mt_core_snap(unsigned int ctr); void mt_core_set_snap(unsigned int ctr, uint64_t snap); void mt_mtc_set_snap(struct mt_cpu *mtc, unsigned int ctr, uint64_t snap); #endif /* !defined(MACHINE_MONOTONIC_H) */