| pcpu.h (122932) | pcpu.h (143063) |
|---|---|
| 1/*- 2 * Copyright (c) Peter Wemm <peter@netplex.com.au> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) Peter Wemm <peter@netplex.com.au> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/amd64/include/pcpu.h 122932 2003-11-20 23:49:28Z peter $ | 26 * $FreeBSD: head/sys/amd64/include/pcpu.h 143063 2005-03-02 21:33:29Z joerg $ |
| 27 */ 28 29#ifndef _MACHINE_PCPU_H_ 30#define _MACHINE_PCPU_H_ 31 | 27 */ 28 29#ifndef _MACHINE_PCPU_H_ 30#define _MACHINE_PCPU_H_ 31 |
| 32#ifndef _SYS_CDEFS_H_ 33#error this file needs sys/cdefs.h as a prerequisite 34#endif 35 |
|
| 32#ifdef _KERNEL 33 34/* 35 * The SMP parts are setup in pmap.c and locore.s for the BSP, and 36 * mp_machdep.c sets up the data for the AP's to "see" when they awake. 37 * The reason for doing it via a struct is so that an array of pointers 38 * to each CPU's data can be set up for things like "check curproc on all 39 * other processors" --- 10 unchanged lines hidden (view full) --- 50#if defined(lint) 51 52extern struct pcpu *pcpup; 53 54#define PCPU_GET(member) (pcpup->pc_ ## member) 55#define PCPU_PTR(member) (&pcpup->pc_ ## member) 56#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value)) 57 | 36#ifdef _KERNEL 37 38/* 39 * The SMP parts are setup in pmap.c and locore.s for the BSP, and 40 * mp_machdep.c sets up the data for the AP's to "see" when they awake. 41 * The reason for doing it via a struct is so that an array of pointers 42 * to each CPU's data can be set up for things like "check curproc on all 43 * other processors" --- 10 unchanged lines hidden (view full) --- 54#if defined(lint) 55 56extern struct pcpu *pcpup; 57 58#define PCPU_GET(member) (pcpup->pc_ ## member) 59#define PCPU_PTR(member) (&pcpup->pc_ ## member) 60#define PCPU_SET(member,value) (pcpup->pc_ ## member = (value)) 61 |
| 58#elif defined(__GNUC__) | 62#elif defined(__GNUCLIKE___TYPEOF) && defined(__GNUCLIKE___OFFSETOF) \ 63 && defined(__GNUCLIKE_ASM) |
| 59 60/* 61 * Evaluates to the byte offset of the per-cpu variable name. 62 */ 63#define __pcpu_offset(name) \ 64 __offsetof(struct pcpu, name) 65 66/* --- 98 unchanged lines hidden (view full) --- 165 struct thread *td; 166 167 __asm __volatile("movq %%gs:0,%0" : "=r" (td)); 168 return (td); 169} 170#define curthread (__curthread()) 171 172#else | 64 65/* 66 * Evaluates to the byte offset of the per-cpu variable name. 67 */ 68#define __pcpu_offset(name) \ 69 __offsetof(struct pcpu, name) 70 71/* --- 98 unchanged lines hidden (view full) --- 170 struct thread *td; 171 172 __asm __volatile("movq %%gs:0,%0" : "=r" (td)); 173 return (td); 174} 175#define curthread (__curthread()) 176 177#else |
| 173#error gcc or lint is required to use this file | 178#error this file needs to be ported to your compiler |
| 174#endif 175 176#endif /* _KERNEL */ 177 178#endif /* ! _MACHINE_PCPU_H_ */ | 179#endif 180 181#endif /* _KERNEL */ 182 183#endif /* ! _MACHINE_PCPU_H_ */ |