/* * Copyright (c) 2008-2010 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ #include <mach/mach_types.h> #include <mach/kern_return.h> #include <i386/lapic.h> #include <i386/cpuid.h> #include <i386/proc_reg.h> #include <i386/machine_cpu.h> #include <i386/misc_protos.h> #include <i386/mp.h> #include <i386/postcode.h> #include <i386/cpu_threads.h> #include <i386/machine_routines.h> #include <i386/tsc.h> #include <sys/kdebug.h> /* Base vector for local APIC interrupt sources */ int lapic_interrupt_base = LAPIC_DEFAULT_INTERRUPT_BASE; #define MAX_LAPICIDS (LAPIC_ID_MAX+1) int lapic_to_cpu[MAX_LAPICIDS]; int cpu_to_lapic[MAX_CPUS]; void lapic_cpu_map_init(void) { int i; for (i = 0; i < MAX_CPUS; i++) cpu_to_lapic[i] = -1; for (i = 0; i < MAX_LAPICIDS; i++) lapic_to_cpu[i] = -1; } void lapic_cpu_map(int apic_id, int cpu) { assert(apic_id < MAX_LAPICIDS); assert(cpu < MAX_CPUS); cpu_to_lapic[cpu] = apic_id; lapic_to_cpu[apic_id] = cpu; } /* * Retrieve the local apic ID a cpu. * * Returns the local apic ID for the given processor. * If the processor does not exist or apic not configured, returns -1. */ uint32_t ml_get_apicid(uint32_t cpu) { if(cpu >= (uint32_t)MAX_CPUS) return 0xFFFFFFFF; /* Return -1 if cpu too big */ /* Return the apic ID (or -1 if not configured) */ return (uint32_t)cpu_to_lapic[cpu]; } uint32_t ml_get_cpuid(uint32_t lapic_index) { if(lapic_index >= (uint32_t)MAX_LAPICIDS) return 0xFFFFFFFF; /* Return -1 if cpu too big */ /* Return the cpu ID (or -1 if not configured) */ return (uint32_t)lapic_to_cpu[lapic_index]; }