Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/trunk]: src/sys/arch/usermode/usermode Implement pmap_unwire(); not seen...
details: https://anonhg.NetBSD.org/src/rev/cea6ba27e41c
branches: trunk
changeset: 769598:cea6ba27e41c
user: reinoud <reinoud%NetBSD.org@localhost>
date: Thu Sep 15 15:08:51 2011 +0000
description:
Implement pmap_unwire(); not seen it called yet though
diffstat:
sys/arch/usermode/usermode/pmap.c | 21 ++++++++++++++++++---
1 files changed, 18 insertions(+), 3 deletions(-)
diffs (42 lines):
diff -r c5034416e335 -r cea6ba27e41c sys/arch/usermode/usermode/pmap.c
--- a/sys/arch/usermode/usermode/pmap.c Thu Sep 15 15:02:35 2011 +0000
+++ b/sys/arch/usermode/usermode/pmap.c Thu Sep 15 15:08:51 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.66 2011/09/15 15:02:35 reinoud Exp $ */
+/* $NetBSD: pmap.c,v 1.67 2011/09/15 15:08:51 reinoud Exp $ */
/*-
* Copyright (c) 2011 Reinoud Zandijk <reinoud%NetBSD.org@localhost>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.66 2011/09/15 15:02:35 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.67 2011/09/15 15:08:51 reinoud Exp $");
#include "opt_memsize.h"
#include "opt_kmempages.h"
@@ -892,7 +892,22 @@
void
pmap_unwire(pmap_t pmap, vaddr_t va)
{
-printf("pmap_unwire called not implemented\n'");
+ struct pv_entry *pv;
+ intptr_t lpn;
+
+ dprintf_debug("pmap_unwire called\n'");
+ if (pmap == NULL)
+ return;
+
+ lpn = atop(va - VM_MIN_ADDRESS); /* V->L */
+ pv = pmap->pm_entries[lpn];
+ if (pv == NULL)
+ return;
+ /* but is it wired? */
+ if ((pv->pv_vflags & PV_WIRED) == 0)
+ return;
+ pmap->pm_stats.wired_count--;
+ pv->pv_vflags &= ~PV_WIRED;
}
bool
Home |
Main Index |
Thread Index |
Old Index