4f7710fc47
__FreeBSD_version 500015 can be used to detect their disappearance. - Move the symbols for SMP_prvspace and lapic from globals.s to locore.s. - Remove globals.s with extreme prejudice.
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/*-
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* Copyright (c) 1999 Luoqi Chen <luoqi@freebsd.org>
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* All rights reserved.
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* Copyright (c) 2000 Jake Burkholder <jake@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_GLOBALS_H_
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#define _MACHINE_GLOBALS_H_
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#ifdef _KERNEL
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#include <machine/globaldata.h>
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static __inline struct globaldata *
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_global_globaldata(void)
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{
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struct globaldata *gd;
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int offset;
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offset = offsetof(struct globaldata, gd_prvspace);
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__asm __volatile("movl %%fs:%1,%0"
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: "=r" (gd)
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: "m" (*(struct globaldata *)(offset)));
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return (gd);
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}
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#define GLOBALDATA (_global_globaldata())
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#define PCPU_GET(member) (GLOBALDATA->gd_ ## member)
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#define PCPU_PTR(member) (&GLOBALDATA->gd_ ## member)
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#define PCPU_SET(member, val) (GLOBALDATA->gd_ ## member = (val))
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#define CURPROC PCPU_GET(curproc)
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#define CURTHD PCPU_GET(curproc)
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#define curproc PCPU_GET(curproc)
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#endif /* _KERNEL */
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#endif /* !_MACHINE_GLOBALS_H_ */
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