projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 593a1d5f | 1 | /* |
| 060df5ea | 2 | * Copyright (c) 2008-2010 Apple Inc. All rights reserved. |
| 593a1d5f A |
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 | * @OSF_COPYRIGHT@ | |
| 30 | */ | |
| 31 | ||
| 32 | #include <mach/mach_types.h> | |
| 33 | #include <mach/kern_return.h> | |
| 34 | ||
| 593a1d5f A |
35 | #include <i386/lapic.h> |
| 36 | #include <i386/cpuid.h> | |
| 37 | #include <i386/proc_reg.h> | |
| 38 | #include <i386/machine_cpu.h> | |
| 39 | #include <i386/misc_protos.h> | |
| 40 | #include <i386/mp.h> | |
| 593a1d5f A |
41 | #include <i386/postcode.h> |
| 42 | #include <i386/cpu_threads.h> | |
| 593a1d5f | 43 | #include <i386/machine_routines.h> |
| 060df5ea | 44 | #include <i386/tsc.h> |
| 593a1d5f A |
45 | |
| 46 | #include <sys/kdebug.h> | |
| 47 | ||
| 060df5ea A |
48 | /* Base vector for local APIC interrupt sources */ |
| 49 | int lapic_interrupt_base = LAPIC_DEFAULT_INTERRUPT_BASE; | |
| 50 | ||
| 060df5ea A |
51 | #define MAX_LAPICIDS (LAPIC_ID_MAX+1) |
| 52 | int lapic_to_cpu[MAX_LAPICIDS]; | |
| 53 | int cpu_to_lapic[MAX_CPUS]; | |
| 54 | ||
| 6d2010ae | 55 | void |
| 593a1d5f A |
56 | lapic_cpu_map_init(void) |
| 57 | { | |
| 58 | int i; | |
| 59 | ||
| b7266188 | 60 | for (i = 0; i < MAX_CPUS; i++) |
| 593a1d5f | 61 | cpu_to_lapic[i] = -1; |
| b7266188 A |
62 | for (i = 0; i < MAX_LAPICIDS; i++) |
| 63 | lapic_to_cpu[i] = -1; | |
| 593a1d5f A |
64 | } |
| 65 | ||
| 66 | void | |
| 67 | lapic_cpu_map(int apic_id, int cpu) | |
| 68 | { | |
| b7266188 A |
69 | assert(apic_id < MAX_LAPICIDS); |
| 70 | assert(cpu < MAX_CPUS); | |
| 593a1d5f A |
71 | cpu_to_lapic[cpu] = apic_id; |
| 72 | lapic_to_cpu[apic_id] = cpu; | |
| 73 | } | |
| 74 | ||
| 75 | /* | |
| 76 | * Retrieve the local apic ID a cpu. | |
| 77 | * | |
| 78 | * Returns the local apic ID for the given processor. | |
| 79 | * If the processor does not exist or apic not configured, returns -1. | |
| 80 | */ | |
| 81 | ||
| 82 | uint32_t | |
| 83 | ml_get_apicid(uint32_t cpu) | |
| 84 | { | |
| 85 | if(cpu >= (uint32_t)MAX_CPUS) | |
| 86 | return 0xFFFFFFFF; /* Return -1 if cpu too big */ | |
| 87 | ||
| 88 | /* Return the apic ID (or -1 if not configured) */ | |
| 89 | return (uint32_t)cpu_to_lapic[cpu]; | |
| 90 | ||
| 91 | } | |
| 92 | ||
| b0d623f7 A |
93 | uint32_t |
| 94 | ml_get_cpuid(uint32_t lapic_index) | |
| 95 | { | |
| b7266188 | 96 | if(lapic_index >= (uint32_t)MAX_LAPICIDS) |
| b0d623f7 A |
97 | return 0xFFFFFFFF; /* Return -1 if cpu too big */ |
| 98 | ||
| 99 | /* Return the cpu ID (or -1 if not configured) */ | |
| 100 | return (uint32_t)lapic_to_cpu[lapic_index]; | |
| 101 | ||
| 102 | } |