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Keep track of which CPUs are using a pmap by setting/clearing bits 

in the pmap's CPU mask in pmap_activate()/pmap_deactivate().
This commit is contained in:
thorpej 1998-03-18 21:57:03 +00:00
parent 214f303d0e
commit cfdf9a95ad
1 changed files with 12 additions and 3 deletions
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15
sys/arch/alpha/alpha/pmap.old.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.old.c,v 1.59 1998/03/18 19:27:46 thorpej Exp $ */
/* $NetBSD: pmap.old.c,v 1.60 1998/03/18 21:57:03 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -155,7 +155,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pmap.old.c,v 1.59 1998/03/18 19:27:46 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.old.c,v 1.60 1998/03/18 21:57:03 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -1738,6 +1738,11 @@ pmap_activate(p)
/* XXX Allocate an ASN. */
/*
* Mark the pmap in use by this processor.
*/
pmap->pm_cpus |= (1UL << alpha_pal_whami());
PMAP_ACTIVATE(pmap, p);
}
@ -1751,13 +1756,17 @@ void
pmap_deactivate(p)
struct proc *p;
{
struct pmap *pmap = p->p_vmspace->vm_map.pmap;
#ifdef DEBUG
if (pmapdebug & PDB_FOLLOW)
printf("pmap_deactivate(%p)\n", p);
#endif
/* XXX Free the ASN. */
/*
* Mark the pmap no longer in use by this processor.
*/
pmap->pm_cpus &= ~(1UL << alpha_pal_whami());
}
/*