/*
* Copyright (c) 2007-2021 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
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*
* 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,
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*/
/*
* Copyright (c) 1992 NeXT Computer, Inc.
*
* Machine dependent kernel calls.
*
* HISTORY
*
* 17 June 1992 ? at NeXT
* Created.
*/
#include <kern/thread.h>
#include <mach/mach_types.h>
#include <arm/machdep_call.h>
#if __arm64__
#include <arm64/machine_machdep.h>
#endif
extern kern_return_t kern_invalid(void);
uintptr_t
get_tpidrro(void)
{
uintptr_t uthread;
__asm__ volatile ("mrs %0, TPIDRRO_EL0" : "=r" (uthread));
return uthread;
}
void
set_tpidrro(uintptr_t uthread)
{
__asm__ volatile ("msr TPIDRRO_EL0, %0" : : "r" (uthread));
}
kern_return_t
thread_set_cthread_self(vm_address_t self)
{
return machine_thread_set_tsd_base(current_thread(), self);
}
vm_address_t
thread_get_cthread_self(void)
{
uintptr_t self;
self = get_tpidrro();
assert( self == current_thread()->machine.cthread_self);
return self;
}