/*
* 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
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*
* @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;
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];
}