projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 91447636 A |
1 | /* |
| 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | #ifndef _I386_CPU_THREADS_H_ | |
| 23 | #define _I386_CPU_THREADS_H_ | |
| 24 | ||
| 25 | #include <i386/mp.h> | |
| 26 | #include <i386/cpu_data.h> | |
| 27 | ||
| 28 | struct pmc; | |
| 29 | ||
| 30 | typedef struct { | |
| 31 | int base_cpu; /* Number of the cpu first in core */ | |
| 32 | int num_threads; /* Number of threads (logical cpus) */ | |
| 33 | int active_threads; /* Number of non-halted thredas */ | |
| 34 | struct pmc *pmc; /* Pointer to perfmon data */ | |
| 35 | } cpu_core_t; | |
| 36 | ||
| 37 | #define CPU_THREAD_MASK 0x00000001 | |
| 38 | #define cpu_to_core_lapic(cpu) (cpu_to_lapic[cpu] & ~CPU_THREAD_MASK) | |
| 39 | #define cpu_to_core_cpu(cpu) (lapic_to_cpu[cpu_to_core_lapic(cpu)]) | |
| 40 | #define cpu_to_logical_cpu(cpu) (cpu_to_lapic[cpu] & CPU_THREAD_MASK) | |
| 41 | #define cpu_is_core_cpu(cpu) (cpu_to_logical_cpu(cpu) == 0) | |
| 42 | ||
| 43 | #define cpu_to_core(cpu) (cpu_datap(cpu)->cpu_core) | |
| 44 | ||
| 45 | /* Fast access: */ | |
| 46 | #define cpu_core() ((cpu_core_t *) get_cpu_core()) | |
| 47 | ||
| 48 | #define cpu_is_same_core(cpu1,cpu2) (cpu_to_core(cpu1) == cpu_to_core(cpu2)) | |
| 49 | ||
| 50 | extern void cpu_thread_init(void); | |
| 51 | extern void cpu_thread_halt(void); | |
| 52 | ||
| 53 | extern int idlehalt; | |
| 54 | ||
| 55 | extern int ncore; | |
| 56 | #endif /* _I386_CPU_THREADS_H_ */ |