[src/trunk]: src/sys/arch/usermode/usermode Use the VM_MIN_ADDRESS `constant'...

[reinoud <reinoud%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ec40e9914a67
branches:  trunk
changeset: 768668:ec40e9914a67
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Wed Aug 24 11:30:59 2011 +0000

description:
Use the VM_MIN_ADDRESS `constant' for the offset calculation of virtual
address to a logical page address.

diffstat:

 sys/arch/usermode/usermode/pmap.c |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (45 lines):

diff -r 923b9f55dc6a -r ec40e9914a67 sys/arch/usermode/usermode/pmap.c
--- a/sys/arch/usermode/usermode/pmap.c Wed Aug 24 11:28:50 2011 +0000
+++ b/sys/arch/usermode/usermode/pmap.c Wed Aug 24 11:30:59 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.26 2011/08/24 11:02:31 reinoud Exp $ */
+/* $NetBSD: pmap.c,v 1.27 2011/08/24 11:30:59 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 1.26 2011/08/24 11:02:31 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.27 2011/08/24 11:30:59 reinoud Exp $");
 
 #include "opt_memsize.h"
 #include "opt_kmempages.h"
@@ -414,7 +414,7 @@
 pmap_page_activate(struct pv_entry *pv)
 {
        paddr_t pa = pv->pv_ppn * PAGE_SIZE;
-       vaddr_t va = pv->pv_lpn * PAGE_SIZE + kmem_ext_start; /* XXX V->A make new var */
+       vaddr_t va = pv->pv_lpn * PAGE_SIZE + VM_MIN_ADDRESS; /* V->A */
 
        void *addr;
 
@@ -471,7 +471,7 @@
 
        /* to page numbers */
        ppn = atop(pa);
-       lpn = atop(va - kmem_ext_start);        /* XXX V->A make new var */
+       lpn = atop(va - VM_MIN_ADDRESS);        /* V->A */
 #ifdef DIAGNOSTIC
        if ((va < kmem_k_start) || (va > kmem_user_end))
                panic("pmap_do_enter: invalid va isued\n");
@@ -630,7 +630,7 @@
 
        /* TODO protect against roque values */
        aprint_debug("pmap_extract: extracting va %p\n", (void *) va);
-       pv = pmap->pm_entries[atop(va - kmem_ext_start)];       /* XXX V->A make new var */
+       pv = pmap->pm_entries[atop(va - VM_MIN_ADDRESS)]; /* V->A */
 
        if (pv == NULL)
                return false;