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pmap_extract: handle P1 and P2 (MMU bypass) addresses specially.

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PMAP_MAP_POOLPAGE maps pa -> P1 va, so we must handle this case here.
PR port-sh3/26569 by Nick Hudson.
This commit is contained in:
uwe 2006-02-09 10:08:32 +00:00
parent 9d3ba7cac4
commit 3c5e28322e
1 changed files with 11 additions and 3 deletions
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14
sys/arch/sh3/sh3/pmap.c
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.52 2006/01/21 00:56:05 uwe Exp $ */
/* $NetBSD: pmap.c,v 1.53 2006/02/09 10:08:32 uwe Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.52 2006/01/21 00:56:05 uwe Exp $");
__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.53 2006/02/09 10:08:32 uwe Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -585,8 +585,16 @@ pmap_kremove(vaddr_t va, vsize_t len)
boolean_t
pmap_extract(pmap_t pmap, vaddr_t va, paddr_t *pap)
{
pt_entry_t *pte = __pmap_pte_lookup(pmap, va);
pt_entry_t *pte;
/* handle P1 and P2 specially: va == pa */
if (pmap == pmap_kernel() && (va >> 30) == 2) {
if (pap != NULL)
*pap = va & SH3_PHYS_MASK;
return (TRUE);
}
pte = __pmap_pte_lookup(pmap, va);
if (pte == NULL || *pte == 0)
return (FALSE);