1 /* 2 * Copyright (c) 2018 Apple Computer, 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 #ifndef KPERF_LAZY_H 30 #define KPERF_LAZY_H 31 32 #include <stdbool.h> 33 #include <stdint.h> 34 #include <kern/thread.h> 35 36 extern unsigned int kperf_lazy_wait_action; 37 extern unsigned int kperf_lazy_cpu_action; 38 39 void kperf_lazy_reset(void); 40 void kperf_lazy_off_cpu(thread_t thread); 41 void kperf_lazy_make_runnable(thread_t thread, bool in_interrupt); 42 void kperf_lazy_wait_sample(thread_t thread, 43 thread_continue_t continuation, uintptr_t *starting_fp); 44 void kperf_lazy_cpu_sample(thread_t thread, unsigned int flags, bool interrupt); 45 46 /* accessors for configuration */ 47 int kperf_lazy_get_wait_action(void); 48 int kperf_lazy_get_cpu_action(void); 49 int kperf_lazy_set_wait_action(int action_id); 50 int kperf_lazy_set_cpu_action(int action_id); 51 uint64_t kperf_lazy_get_wait_time_threshold(void); 52 uint64_t kperf_lazy_get_cpu_time_threshold(void); 53 int kperf_lazy_set_wait_time_threshold(uint64_t threshold); 54 int kperf_lazy_set_cpu_time_threshold(uint64_t threshold); 55 56 #endif /* !defined(KPERF_LAZY_H) */ 57