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sys/amd64/include/pcpu_aux.h
- This file was added.
| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2019 The FreeBSD Foundation | |||||
| * | |||||
| * This software was developed by Konstantin Belousov <kib@FreeBSD.org> | |||||
| * under sponsorship from the FreeBSD Foundation. | |||||
| * | |||||
| * 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. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef _MACHINE_PCPU_AUX_H_ | |||||
| #define _MACHINE_PCPU_AUX_H_ | |||||
| #ifndef _KERNEL | |||||
| #error "Not for userspace" | |||||
| #endif | |||||
| #ifndef _SYS_PCPU_H_ | |||||
| #error "Do not include machine/pcpu_aux.h directly" | |||||
| #endif | |||||
| /* Required for counters(9) to work on x86. */ | |||||
| _Static_assert(sizeof(struct pcpu) == UMA_PCPU_ALLOC_SIZE, "fix pcpu size"); | |||||
| extern struct pcpu *__pcpu; | |||||
| extern struct pcpu temp_bsp_pcpu; | |||||
| static __inline __pure2 struct thread * | |||||
| __curthread(void) | |||||
| { | |||||
| struct thread *td; | |||||
| __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct pcpu, | |||||
| pc_curthread))); | |||||
| return (td); | |||||
| } | |||||
| #define curthread (__curthread()) | |||||
| static __inline __pure2 struct pcb * | |||||
| __curpcb(void) | |||||
| { | |||||
| struct pcb *pcb; | |||||
| __asm("movq %%gs:%P1,%0" : "=r" (pcb) : "n" (offsetof(struct pcpu, | |||||
| pc_curpcb))); | |||||
| return (pcb); | |||||
| } | |||||
| #define curpcb (__curpcb()) | |||||
| #endif /* _MACHINE_PCPU_AUX_H_ */ | |||||