168349Sobrien/*- 268349Sobrien * SPDX-License-Identifier: BSD-2-Clause 368349Sobrien * 468349Sobrien * Copyright (c) 2005 David Xu <davidxu@freebsd.org>. 568349Sobrien * All rights reserved. 668349Sobrien * 768349Sobrien * Redistribution and use in source and binary forms, with or without 868349Sobrien * modification, are permitted provided that the following conditions 968349Sobrien * are met: 1068349Sobrien * 1168349Sobrien * 1. Redistributions of source code must retain the above copyright 1268349Sobrien * notice, this list of conditions and the following disclaimer. 1368349Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1468349Sobrien * notice, this list of conditions and the following disclaimer in the 1568349Sobrien * documentation and/or other materials provided with the distribution. 1668349Sobrien * 1768349Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1868349Sobrien * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1968349Sobrien * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2068349Sobrien * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2168349Sobrien * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2268349Sobrien * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2368349Sobrien * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2468349Sobrien * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2580588Sobrien * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2680588Sobrien * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2780588Sobrien */ 2880588Sobrien 29#ifndef _MACHINE_TLS_H_ 30#define _MACHINE_TLS_H_ 31 32#include <sys/_tls_variant_i.h> 33#include <machine/sysarch.h> 34 35#define TLS_DTV_OFFSET 0 36#define TLS_TCB_ALIGN 8 37#define TLS_TP_OFFSET 0 38 39static __inline void 40_tcb_set(struct tcb *tcb) 41{ 42 sysarch(ARM_SET_TP, tcb); 43} 44 45static __inline struct tcb * 46_tcb_get(void) 47{ 48 struct tcb *tcb; 49 50 __asm __volatile("mrc p15, 0, %0, c13, c0, 3" \ 51 : "=r" (tcb)); 52 return (tcb); 53} 54 55#endif /* !_MACHINE_TLS_H_ */ 56