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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright 2004 by Peter Grehan. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _MACHINE_TLS_H_
#define _MACHINE_TLS_H_
#include <sys/_tls_variant_i.h>
#define TLS_DTV_OFFSET 0x8000
#define TLS_TCB_ALIGN TLS_TCB_SIZE
#define TLS_TP_OFFSET 0x7000
static __inline void
_tcb_set(struct tcb *tcb)
{
#ifdef __powerpc64__
__asm __volatile("mr 13,%0" ::
"r" ((uint8_t *)tcb + TLS_TP_OFFSET + TLS_TCB_SIZE));
#else
__asm __volatile("mr 2,%0" ::
"r" ((uint8_t *)tcb + TLS_TP_OFFSET + TLS_TCB_SIZE));
#endif
}
static __inline struct tcb *
_tcb_get(void)
{
struct tcb *tcb;
#ifdef __powerpc64__
__asm __volatile("addi %0,13,%1" : "=r" (tcb) :
"i" (-(TLS_TP_OFFSET + TLS_TCB_SIZE)));
#else
__asm __volatile("addi %0,2,%1" : "=r" (tcb) :
"i" (-(TLS_TP_OFFSET + TLS_TCB_SIZE)));
#endif
return (tcb);
}
#endif /* !_MACHINE_TLS_H_ */
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