/*
* Copyright (c) 2003-2008 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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*/
#ifndef _I386_CPU_THREADS_H_
#define _I386_CPU_THREADS_H_
#include <i386/cpu_data.h>
#include <i386/cpu_topology.h>
#include <i386/mp.h>
/*
* These are defined here rather than in cpu_topology.h so as to keep
* cpu_topology.h from having a dependency on cpu_data.h.
*/
#define CPU_THREAD_MASK 0x00000001
#define cpu_to_core_lapic(cpu) (cpu_to_lapic[cpu] & ~CPU_THREAD_MASK)
#define cpu_to_core_cpu(cpu) (lapic_to_cpu[cpu_to_core_lapic(cpu)])
#define cpu_to_logical_cpu(cpu) (cpu_to_lapic[cpu] & CPU_THREAD_MASK)
#define cpu_is_core_cpu(cpu) (cpu_to_logical_cpu(cpu) == 0)
#define _cpu_to_lcpu(cpu) (&cpu_datap(cpu)->lcpu)
#define _cpu_to_core(cpu) (_cpu_to_lcpu(cpu)->core)
#define _cpu_to_package(cpu) (_cpu_to_core(cpu)->package)
#define cpu_to_lcpu(cpu) ((cpu_datap(cpu) != NULL) ? _cpu_to_lcpu(cpu) : NULL)
#define cpu_to_core(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->core : NULL)
#define cpu_to_die(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->die : NULL)
#define cpu_to_package(cpu) ((cpu_to_lcpu(cpu) != NULL) ? _cpu_to_lcpu(cpu)->package : NULL)
/* Fast access: */
#define x86_lcpu() (¤t_cpu_datap()->lcpu)
#define x86_core() (x86_lcpu()->core)
#define x86_die() (x86_lcpu()->die)
#define x86_package() (x86_lcpu()->package)
#define cpu_is_same_core(cpu1, cpu2) (cpu_to_core(cpu1) == cpu_to_core(cpu2))
#define cpu_is_same_die(cpu1, cpu2) (cpu_to_die(cpu1) == cpu_to_die(cpu2))
#define cpu_is_same_package(cpu1, cpu2) (cpu_to_package(cpu1) == cpu_to_package(cpu2))
#define cpus_share_cache(cpu1, cpu2, _cl) (cpu_to_lcpu(cpu1)->caches[_cl] == cpu_to_lcpu(cpu2)->caches[_cl])
/* always take the x86_topo_lock with mp_safe_spin_lock */
boolean_t mp_safe_spin_lock(usimple_lock_t lock);
extern decl_simple_lock_data(, x86_topo_lock);
extern void *cpu_thread_alloc(int);
extern void cpu_thread_init(void);
extern void cpu_thread_halt(void);
extern void x86_set_logical_topology(x86_lcpu_t *lcpu, int pnum, int lnum);
extern void x86_validate_topology(void);
extern x86_topology_parameters_t topoParms;
extern boolean_t topo_dbg;
#define TOPO_DBG(x...) \
do { \
if (topo_dbg) \
kprintf(x); \
} while (0) \
#endif /* _I386_CPU_THREADS_H_ */