f8761e53a7
symbols in globals.s. PCPU_GET(name) returns the value of the per-cpu variable PCPU_PTR(name) returns a pointer to the per-cpu variable PCPU_SET(name, val) sets the value of the per-cpu variable In general these are not yet used, compatibility macros remain. Unifdef SMP struct globaldata, this makes variables such as cpuid available for UP as well. Rebuilding modules is probably a good idea, but I believe old modules will still work, as most of the old infrastructure remains.
89 lines
3.1 KiB
C
89 lines
3.1 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 astpending PCPU_GET(astpending)
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#define common_tss (*PCPU_PTR(common_tss))
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#define common_tssd (*PCPU_PTR(common_tssd))
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#define cpuid PCPU_GET(cpuid)
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#define currentldt PCPU_GET(currentldt)
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#define curpcb PCPU_GET(curpcb)
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#define curproc PCPU_GET(curproc)
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#define idleproc PCPU_GET(idleproc)
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#define inside_intr (*PCPU_PTR(inside_intr))
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#define intr_nesting_level PCPU_GET(intr_nesting_level)
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#define npxproc PCPU_GET(npxproc)
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#define prv_CMAP1 (*PCPU_PTR(prv_CMAP1))
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#define prv_CMAP2 (*PCPU_PTR(prv_CMAP2))
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#define prv_CMAP3 (*PCPU_PTR(prv_CMAP3))
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#define prv_PMAP1 (*PCPU_PTR(prv_PMAP1))
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#define prv_CADDR1 PCPU_GET(prv_CADDR1)
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#define prv_CADDR2 PCPU_GET(prv_CADDR2)
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#define prv_CADDR3 PCPU_GET(prv_CADDR3)
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#define prv_PADDR1 PCPU_GET(prv_PADDR1)
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#define other_cpus (*PCPU_PTR(other_cpus))
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#define switchticks (*PCPU_PTR(switchticks))
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#define switchtime (*PCPU_PTR(switchtime))
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#define tss_gdt (*PCPU_PTR(tss_gdt))
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#define witness_spin_check PCPU_GET(witness_spin_check)
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#endif /* _KERNEL */
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#endif /* !_MACHINE_GLOBALS_H_ */
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