1/* 2 * Copyright (c) 2003-2009 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 * Machine independent per processor data. 30 */ 31 32#ifndef _KERN_PROCESSOR_DATA_H_ 33#define _KERN_PROCESSOR_DATA_H_ 34 35/* 36 * #include kern/processor.h instead of this file. 37 */ 38 39#ifdef MACH_KERNEL_PRIVATE 40 41#include <ipc/ipc_kmsg.h> 42#include <kern/timer.h> 43 44struct processor_sched_statistics { 45 uint32_t csw_count; 46 uint32_t preempt_count; 47 uint32_t preempted_rt_count; 48 uint32_t preempted_by_rt_count; 49 uint32_t rt_sched_count; 50 uint32_t interrupt_count; 51 uint32_t ipi_count; 52 uint32_t timer_pop_count; 53 uint32_t idle_transitions; 54 uint32_t quantum_timer_expirations; 55}; 56 57struct processor_data { 58 /* Processor state statistics */ 59 timer_data_t idle_state; 60 timer_data_t system_state; 61 timer_data_t user_state; 62 63 timer_t current_state; 64 65 /* Thread execution timers */ 66 timer_t thread_timer; 67 timer_t kernel_timer; 68 69 /* Kernel stack cache */ 70 struct stack_cache { 71 vm_offset_t free; 72 unsigned int count; 73 } stack_cache; 74 75 /* VM event counters */ 76 vm_statistics64_data_t vm_stat; 77 78 /* IPC free message cache */ 79 struct ikm_cache { 80#define IKM_STASH 16 81 ipc_kmsg_t entries[IKM_STASH]; 82 unsigned int avail; 83 } ikm_cache; 84 int start_color; 85 unsigned long page_grab_count; 86 void *free_pages; 87 struct processor_sched_statistics sched_stats; 88 uint64_t timer_call_ttd; /* current timer call time-to-deadline */ 89 uint64_t wakeups_issued_total; /* Count of thread wakeups issued 90 * by this processor 91 */ 92}; 93 94typedef struct processor_data processor_data_t; 95 96#define PROCESSOR_DATA(processor, member) \ 97 (processor)->processor_data.member 98 99extern void processor_data_init( 100 processor_t processor); 101 102#define SCHED_STATS_INTERRUPT(p) \ 103MACRO_BEGIN \ 104 if (__builtin_expect(sched_stats_active, 0)) { \ 105 (p)->processor_data.sched_stats.interrupt_count++; \ 106 } \ 107MACRO_END 108 109#define SCHED_STATS_TIMER_POP(p) \ 110MACRO_BEGIN \ 111 if (__builtin_expect(sched_stats_active, 0)) { \ 112 (p)->processor_data.sched_stats.timer_pop_count++; \ 113 } \ 114MACRO_END 115 116#define SCHED_STATS_IPI(p) \ 117MACRO_BEGIN \ 118 if (__builtin_expect(sched_stats_active, 0)) { \ 119 (p)->processor_data.sched_stats.ipi_count++; \ 120 } \ 121MACRO_END 122 123#define SCHED_STATS_CPU_IDLE_START(p) \ 124MACRO_BEGIN \ 125 if (__builtin_expect(sched_stats_active, 0)) { \ 126 (p)->processor_data.sched_stats.idle_transitions++; \ 127 } \ 128MACRO_END 129 130#define SCHED_STATS_QUANTUM_TIMER_EXPIRATION(p) \ 131MACRO_BEGIN \ 132 if (__builtin_expect(sched_stats_active, 0)) { \ 133 (p)->processor_data.sched_stats.quantum_timer_expirations++; \ 134 } \ 135MACRO_END 136 137#endif /* MACH_KERNEL_PRIVATE */ 138 139#endif /* _KERN_PROCESSOR_DATA_H_ */ 140