1 /* 2 * Copyright (c) 2003-2008 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 _I386_CPU_THREADS_H_ 29 #define _I386_CPU_THREADS_H_ 30 31 #include <i386/cpu_data.h> 32 #include <i386/cpu_topology.h> 33 #include <i386/mp.h> 34 35 /* 36 * These are defined here rather than in cpu_topology.h so as to keep 37 * cpu_topology.h from having a dependency on cpu_data.h. 38 */ 39 #define CPU_THREAD_MASK 0x00000001 40 #define cpu_to_core_lapic(cpu) (cpu_to_lapic[cpu] & ~CPU_THREAD_MASK) 41 #define cpu_to_core_cpu(cpu) (lapic_to_cpu[cpu_to_core_lapic(cpu)]) 42 #define cpu_to_logical_cpu(cpu) (cpu_to_lapic[cpu] & CPU_THREAD_MASK) 43 #define cpu_is_core_cpu(cpu) (cpu_to_logical_cpu(cpu) == 0) 44 45 #define _cpu_to_lcpu(cpu) (&cpu_datap(cpu)->lcpu) 46 #define _cpu_to_core(cpu) (_cpu_to_lcpu(cpu)->core) 47 #define _cpu_to_package(cpu) (_cpu_to_core(cpu)->package) 48 49 #define cpu_to_lcpu(cpu) ((cpu_datap(cpu) != NULL) ? _cpu_to_lcpu(cpu) : NULL) 50 #define cpu_to_core(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->core : NULL) 51 #define cpu_to_die(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->die : NULL) 52 #define cpu_to_package(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->package : NULL) 53 54 /* Fast access: */ 55 #define x86_lcpu() (¤t_cpu_datap()->lcpu) 56 #define x86_core() (x86_lcpu()->core) 57 #define x86_die() (x86_lcpu()->die) 58 #define x86_package() (x86_lcpu()->package) 59 60 #define cpu_is_same_core(cpu1, cpu2) (cpu_to_core(cpu1) == cpu_to_core(cpu2)) 61 #define cpu_is_same_die(cpu1, cpu2) (cpu_to_die(cpu1) == cpu_to_die(cpu2)) 62 #define cpu_is_same_package(cpu1, cpu2) (cpu_to_package(cpu1) == cpu_to_package(cpu2)) 63 #define cpus_share_cache(cpu1, cpu2, _cl) (cpu_to_lcpu(cpu1)->caches[_cl] == cpu_to_lcpu(cpu2)->caches[_cl]) 64 65 /* always take the x86_topo_lock with mp_safe_spin_lock */ 66 boolean_t mp_safe_spin_lock(usimple_lock_t lock); 67 extern decl_simple_lock_data(, x86_topo_lock); 68 69 extern void *cpu_thread_alloc(int); 70 extern void cpu_thread_init(void); 71 extern void cpu_thread_halt(void); 72 73 extern void x86_set_logical_topology(x86_lcpu_t *lcpu, int pnum, int lnum); 74 extern void x86_validate_topology(void); 75 76 extern x86_topology_parameters_t topoParms; 77 78 extern boolean_t topo_dbg; 79 #define TOPO_DBG(x...) \ 80 do { \ 81 if (topo_dbg) \ 82 kprintf(x); \ 83 } while (0) \ 84 85 #endif /* _I386_CPU_THREADS_H_ */ 86