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In pmap_emulate_reference(), always or in the bits. I know the code is trying 

to be clever, but...
Also, a slight optimization for the write case.
This commit is contained in:
mycroft 1999-11-27 00:25:15 +00:00
parent 7047fe4a36
commit 1d9d2c47c5
1 changed files with 7 additions and 6 deletions
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13
sys/arch/alpha/alpha/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.116 1999/11/26 23:04:33 mycroft Exp $ */
/* $NetBSD: pmap.c,v 1.117 1999/11/27 00:25:15 mycroft Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@ -154,7 +154,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.116 1999/11/26 23:04:33 mycroft Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.117 1999/11/27 00:25:15 mycroft Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -2809,11 +2809,12 @@ pmap_emulate_reference(p, v, user, write)
PMAP_HEAD_TO_MAP_LOCK();
simple_lock(&pvh->pvh_slock);
pvh->pvh_attrs = PGA_REFERENCED;
faultoff = PG_FOR | PG_FOE;
if (write) {
pvh->pvh_attrs |= PGA_MODIFIED;
faultoff |= PG_FOW;
pvh->pvh_attrs |= (PGA_REFERENCED|PGA_MODIFIED);
faultoff = PG_FOR | PG_FOW | PG_FOE;
} else {
pvh->pvh_attrs |= PGA_REFERENCED;
faultoff = PG_FOR | PG_FOE;
}
pmap_changebit(pa, 0, ~faultoff, cpu_id);