Module Name: src
Committed By: uebayasi
Date: Sat Oct 30 17:27:17 UTC 2010
Modified Files:
src/sys/arch/ia64/ia64: pmap.c
Log Message:
Use VM_PAGE_TO_MD() to locate struct vm_page_md. No functional
changes.
To generate a diff of this commit:
cvs rdiff -u -r1.24 -r1.25 src/sys/arch/ia64/ia64/pmap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/ia64/ia64/pmap.c
diff -u src/sys/arch/ia64/ia64/pmap.c:1.24 src/sys/arch/ia64/ia64/pmap.c:1.25
--- src/sys/arch/ia64/ia64/pmap.c:1.24 Sat Nov 7 07:27:44 2009
+++ src/sys/arch/ia64/ia64/pmap.c Sat Oct 30 17:27:17 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.24 2009/11/07 07:27:44 cegger Exp $ */
+/* $NetBSD: pmap.c,v 1.25 2010/10/30 17:27:17 uebayasi Exp $ */
/*-
@@ -85,7 +85,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.24 2009/11/07 07:27:44 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.25 2010/10/30 17:27:17 uebayasi Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -102,6 +102,8 @@
#include <machine/cpufunc.h>
#include <machine/md_var.h>
+#define VM_PAGE_TO_MD(pg) (&(pg)->mdpage)
+
/*
* Kernel virtual memory management.
@@ -1233,6 +1235,7 @@
bool
pmap_clear_modify(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
bool rv = false;
struct ia64_lpte *pte;
pmap_t oldpmap;
@@ -1241,7 +1244,7 @@
if (pg->flags & PG_FAKE)
return rv;
- TAILQ_FOREACH(pv, &pg->mdpage.pv_list, pv_list) {
+ TAILQ_FOREACH(pv, &md->pv_list, pv_list) {
PMAP_LOCK(pv->pv_pmap);
oldpmap = pmap_install(pv->pv_pmap);
pte = pmap_find_vhpt(pv->pv_va);
@@ -1266,6 +1269,7 @@
void
pmap_page_protect(struct vm_page *pg, vm_prot_t prot)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
struct ia64_lpte *pte;
pmap_t oldpmap, pmap;
pv_entry_t pv;
@@ -1275,7 +1279,7 @@
if (prot & (VM_PROT_READ | VM_PROT_EXECUTE)) {
if (pg->flags & PG_RDONLY)
return;
- TAILQ_FOREACH(pv, &pg->mdpage.pv_list, pv_list) {
+ TAILQ_FOREACH(pv, &md->pv_list, pv_list) {
pmap = pv->pv_pmap;
PMAP_LOCK(pmap);
oldpmap = pmap_install(pmap);
@@ -1489,8 +1493,9 @@
*/
void
-pmap_page_purge(struct vm_page * pg)
+pmap_page_purge(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
pmap_t oldpmap;
pv_entry_t pv;
@@ -1505,7 +1510,7 @@
#endif
//UVM_LOCK_ASSERT_PAGEQ();
- while ((pv = TAILQ_FIRST(&pg->mdpage.pv_list)) != NULL) {
+ while ((pv = TAILQ_FIRST(&md->pv_list)) != NULL) {
struct ia64_lpte *pte;
pmap_t pmap = pv->pv_pmap;
vaddr_t va = pv->pv_va;
@@ -1972,11 +1977,13 @@
* Remove an entry from the list of managed mappings.
*/
static int
-pmap_remove_entry(pmap_t pmap, struct vm_page * pg, vaddr_t va, pv_entry_t pv)
+pmap_remove_entry(pmap_t pmap, struct vm_page *pg, vaddr_t va, pv_entry_t pv)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+
if (!pv) {
- if (pg->mdpage.pv_list_count < pmap->pm_stats.resident_count) {
- TAILQ_FOREACH(pv, &pg->mdpage.pv_list, pv_list) {
+ if (md->pv_list_count < pmap->pm_stats.resident_count) {
+ TAILQ_FOREACH(pv, &md->pv_list, pv_list) {
if (pmap == pv->pv_pmap && va == pv->pv_va)
break;
}
@@ -1989,9 +1996,9 @@
}
if (pv) {
- TAILQ_REMOVE(&pg->mdpage.pv_list, pv, pv_list);
- pg->mdpage.pv_list_count--;
- if (TAILQ_FIRST(&pg->mdpage.pv_list) == NULL) {
+ TAILQ_REMOVE(&md->pv_list, pv, pv_list);
+ md->pv_list_count--;
+ if (TAILQ_FIRST(&md->pv_list) == NULL) {
//UVM_LOCK_ASSERT_PAGEQ();
pg->flags |= PG_RDONLY;
}
@@ -2012,6 +2019,7 @@
static void
pmap_insert_entry(pmap_t pmap, vaddr_t va, struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
pv_entry_t pv;
pv = get_pv_entry(pmap);
@@ -2021,8 +2029,8 @@
//LOCK_ASSERT(simple_lock_held(pmap->slock));
//UVM_LOCK_ASSERT_PAGEQ();
TAILQ_INSERT_TAIL(&pmap->pm_pvlist, pv, pv_plist);
- TAILQ_INSERT_TAIL(&pg->mdpage.pv_list, pv, pv_list);
- pg->mdpage.pv_list_count++;
+ TAILQ_INSERT_TAIL(&md->pv_list, pv, pv_list);
+ md->pv_list_count++;
}
@@ -2092,13 +2100,14 @@
pa = VM_PAGE_TO_PHYS(pg);
#ifdef DEBUG
- mutex_enter(&pg->mdpage.pv_mutex);
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+ mutex_enter(&md->pv_mutex);
if (pg->wire_count != 0) {
printf("pmap_physpage_alloc: page 0x%lx has "
"%d references\n", pa, pg->wire_count);
panic("pmap_physpage_alloc");
}
- mutex_exit(&pg->mdpage.pv_mutex);
+ mutex_exit(&md->pv_mutex);
#endif
*pap = pa;
return true;
@@ -2120,10 +2129,11 @@
panic("pmap_physpage_free: bogus physical page address");
#ifdef DEBUG
- mutex_enter(&pg->mdpage.pv_mutex);
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+ mutex_enter(&md->pv_mutex);
if (pg->wire_count != 0)
panic("pmap_physpage_free: page still has references");
- mutex_exit(&pg->mdpage.pv_mutex);
+ mutex_exit(&md->pv_mutex);
#endif
uvm_pagefree(pg);
