| | 1 | /* |
| | 2 | * Copyright (c) 2008-2010 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 | * @OSF_COPYRIGHT@ |
| | 30 | */ |
| | 31 | |
| | 32 | #include <mach/mach_types.h> |
| | 33 | #include <mach/kern_return.h> |
| | 34 | |
| | 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> |
| | 41 | #include <i386/postcode.h> |
| | 42 | #include <i386/cpu_threads.h> |
| | 43 | #include <i386/machine_routines.h> |
| | 44 | #include <i386/tsc.h> |
| | 45 | |
| | 46 | #include <sys/kdebug.h> |
| | 47 | |
| | 48 | /* Base vector for local APIC interrupt sources */ |
| | 49 | int lapic_interrupt_base = LAPIC_DEFAULT_INTERRUPT_BASE; |
| | 50 | |
| | 51 | int lapic_to_cpu[MAX_LAPICIDS]; |
| | 52 | int cpu_to_lapic[MAX_CPUS]; |
| | 53 | |
| | 54 | void |
| | 55 | lapic_cpu_map_init(void) |
| | 56 | { |
| | 57 | int i; |
| | 58 | |
| | 59 | for (i = 0; i < MAX_CPUS; i++) { |
| | 60 | cpu_to_lapic[i] = -1; |
| | 61 | } |
| | 62 | for (i = 0; i < MAX_LAPICIDS; i++) { |
| | 63 | lapic_to_cpu[i] = -1; |
| | 64 | } |
| | 65 | } |
| | 66 | |
| | 67 | void |
| | 68 | lapic_cpu_map(int apic_id, int cpu) |
| | 69 | { |
| | 70 | assert(apic_id < MAX_LAPICIDS); |
| | 71 | assert(cpu < MAX_CPUS); |
| | 72 | cpu_to_lapic[cpu] = apic_id; |
| | 73 | lapic_to_cpu[apic_id] = cpu; |
| | 74 | } |
| | 75 | |
| | 76 | /* |
| | 77 | * Retrieve the local apic ID a cpu. |
| | 78 | * |
| | 79 | * Returns the local apic ID for the given processor. |
| | 80 | * If the processor does not exist or apic not configured, returns -1. |
| | 81 | */ |
| | 82 | |
| | 83 | uint32_t |
| | 84 | ml_get_apicid(uint32_t cpu) |
| | 85 | { |
| | 86 | if (cpu >= (uint32_t)MAX_CPUS) { |
| | 87 | return 0xFFFFFFFF; /* Return -1 if cpu too big */ |
| | 88 | } |
| | 89 | /* Return the apic ID (or -1 if not configured) */ |
| | 90 | return (uint32_t)cpu_to_lapic[cpu]; |
| | 91 | } |
| | 92 | |
| | 93 | uint32_t |
| | 94 | ml_get_cpuid(uint32_t lapic_index) |
| | 95 | { |
| | 96 | if (lapic_index >= (uint32_t)MAX_LAPICIDS) { |
| | 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 | } |
projects / apple / xnu.git / blame_incremental