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/*-
* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
* All rights reserved.
* Copyright (c) 2000 Jake Burkholder <jake@freebsd.org>
* 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.
*
* 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_GLOBALS_H_
#define _MACHINE_GLOBALS_H_
#ifdef _KERNEL
#include <machine/globaldata.h>
static __inline struct globaldata *
_global_globaldata(void)
{
struct globaldata *gd;
int offset;
offset = offsetof(struct globaldata, gd_prvspace);
__asm __volatile("movl %%fs:%1,%0"
: "=r" (gd)
: "m" (*(struct globaldata *)(offset)));
return (gd);
}
#define GLOBALDATA (_global_globaldata())
#define PCPU_GET(member) (GLOBALDATA->gd_ ## member)
#define PCPU_PTR(member) (&GLOBALDATA->gd_ ## member)
#define PCPU_SET(member, val) (GLOBALDATA->gd_ ## member = (val))
#define CURPROC PCPU_GET(curproc)
#define CURTHD PCPU_GET(curproc)
#define curproc PCPU_GET(curproc)
#endif /* _KERNEL */
#endif /* !_MACHINE_GLOBALS_H_ */
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