/* * Copyright (c) 2019 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@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ #ifdef KERNEL_PRIVATE #ifndef _ARM_SIMPLE_LOCK_TYPES_H_ #define _ARM_SIMPLE_LOCK_TYPES_H_ #include <kern/lock_group.h> #ifdef KERNEL_PRIVATE #include <mach/boolean.h> #include <kern/kern_types.h> #include <sys/appleapiopts.h> #ifdef MACH_KERNEL_PRIVATE #include <arm/hw_lock_types.h> #include <arm/locks.h> #include <mach_ldebug.h> #endif #ifdef MACH_KERNEL_PRIVATE extern uint32_t LockTimeOut; /* Number of hardware ticks of a lock timeout */ extern uint32_t LockTimeOutUsec; /* Number of microseconds for lock timeout */ typedef lck_spin_t usimple_lock_data_t, *usimple_lock_t; #else /* MACH_KERNEL_PRIVATE */ #if defined(__arm__) typedef struct slock { unsigned int lock_data[10]; } usimple_lock_data_t, *usimple_lock_t; #elif defined(__arm64__) /* * ARM64_TODO: this is quite a waste of space (and a * poorly packed data structure). See if anyone's * using these outside of osfmk. * NOTE: only osfmk uses this structure in xnu-2624 */ typedef struct slock { uint64_t lock_data[9]; } usimple_lock_data_t, *usimple_lock_t; #else #error Unknown architecture. #endif #endif /* MACH_KERNEL_PRIVATE */ #define USIMPLE_LOCK_NULL ((usimple_lock_t) 0) #if !defined(decl_simple_lock_data) typedef usimple_lock_data_t *simple_lock_t; typedef usimple_lock_data_t simple_lock_data_t; #define decl_simple_lock_data(class, name) \ class simple_lock_data_t name #endif /* !defined(decl_simple_lock_data) */ #ifdef MACH_KERNEL_PRIVATE #define MACHINE_SIMPLE_LOCK extern void arm_usimple_lock_init(simple_lock_t, __unused unsigned short); #define simple_lock_init(l, t) arm_usimple_lock_init(l,t) #if LOCK_STATS #define simple_lock(l, grp) lck_spin_lock_grp(l, grp) #define simple_lock_nopreempt(l, grp) lck_spin_lock_nopreempt_grp(l, grp) #define simple_lock_try(l, grp) lck_spin_try_lock_grp(l, grp) #define simple_lock_try_nopreempt(l, grp) lck_spin_try_lock_nopreempt_grp(l, grp) #else #define simple_lock(l, grp) lck_spin_lock(l) #define simple_lock_nopreempt(l, grp) lck_spin_lock_nopreempt(l) #define simple_lock_try(l, grp) lck_spin_try_lock(l) #define simple_lock_try_nopreempt(l, grp) lck_spin_try_lock_nopreempt(l) #endif /* LOCK_STATS */ #define simple_unlock(l) lck_spin_unlock(l) #define simple_unlock_nopreempt(l) lck_spin_unlock_nopreempt(l) #define simple_lock_try_lock_loop(l, grp) simple_lock(l, grp) #define simple_lock_addr(l) (&(l)) #define simple_lock_assert(l, t) lck_spin_assert(l,t) #define kdp_simple_lock_is_acquired(l) kdp_lck_spin_is_acquired(l) #endif /* MACH_KERNEL_PRIVATE */ #endif /* KERNEL_PRIVATE */ #endif /* !_ARM_SIMPLE_LOCK_TYPES_H_ */ #endif /* KERNEL_PRIVATE */