Module Name: src
Committed By: uebayasi
Date: Sat Oct 30 17:44:04 UTC 2010
Modified Files:
src/sys/arch/mips/mips: 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 -r1.189 -r1.190 src/sys/arch/mips/mips/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/mips/mips/pmap.c
diff -u src/sys/arch/mips/mips/pmap.c:1.189 src/sys/arch/mips/mips/pmap.c:1.190
--- src/sys/arch/mips/mips/pmap.c:1.189 Tue Jul 6 20:50:34 2010
+++ src/sys/arch/mips/mips/pmap.c Sat Oct 30 17:44:04 2010
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.189 2010/07/06 20:50:34 cegger Exp $ */
+/* $NetBSD: pmap.c,v 1.190 2010/10/30 17:44:04 uebayasi Exp $ */
/*-
* Copyright (c) 1998, 2001 The NetBSD Foundation, Inc.
@@ -67,7 +67,7 @@
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.189 2010/07/06 20:50:34 cegger Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.190 2010/10/30 17:44:04 uebayasi Exp $");
/*
* Manages physical address maps.
@@ -134,6 +134,8 @@
#include <mips/locore.h>
#include <mips/pte.h>
+#define VM_PAGE_TO_MD(pg) (&(pg)->mdpage)
+
CTASSERT(MIPS_KSEG0_START < 0);
CTASSERT((intptr_t)MIPS_PHYS_TO_KSEG0(0x1000) < 0);
CTASSERT(MIPS_KSEG1_START < 0);
@@ -265,6 +267,7 @@
mips_flushcache_allpvh(paddr_t pa)
{
struct vm_page *pg;
+ struct vm_page_md *md;
struct pv_entry *pv;
pg = PHYS_TO_VM_PAGE(pa);
@@ -277,7 +280,8 @@
return;
}
- pv = pg->mdpage.pvh_list;
+ md = VM_PAGE_TO_MD(pg);
+ pv = md->pvh_list;
#if defined(MIPS3_NO_PV_UNCACHED)
/* No current mapping. Cache was flushed by pmap_remove_pv() */
@@ -522,7 +526,7 @@
for (bank = 0; bank < vm_nphysseg; bank++) {
s = vm_physmem[bank].end - vm_physmem[bank].start;
for (i = 0; i < s; i++)
- vm_physmem[bank].pgs[i].mdpage.pvh_list = pv++;
+ VM_PAGE_TO_MD(&vm_physmem[bank].pgs[i])->pvh_list = pv++;
}
/*
@@ -861,6 +865,7 @@
void
pmap_page_protect(struct vm_page *pg, vm_prot_t prot)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
pv_entry_t pv;
vaddr_t va;
@@ -878,7 +883,7 @@
/* copy_on_write */
case VM_PROT_READ:
case VM_PROT_READ|VM_PROT_EXECUTE:
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
/*
* Loop over all current mappings setting/clearing as appropos.
*/
@@ -894,7 +899,7 @@
/* remove_all */
default:
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
while (pv->pv_pmap != NULL) {
pmap_remove(pv->pv_pmap, pv->pv_va,
pv->pv_va + PAGE_SIZE);
@@ -1079,6 +1084,7 @@
static void
pmap_page_cache(struct vm_page *pg, int mode)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
pv_entry_t pv;
pt_entry_t *pte;
unsigned entry;
@@ -1090,7 +1096,7 @@
printf("pmap_page_uncache(%#"PRIxPADDR")\n", VM_PAGE_TO_PHYS(pg));
#endif
newmode = mode & PV_UNCACHED ? MIPS3_PG_UNCACHED : MIPS3_PG_CACHED;
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
asid = pv->pv_pmap->pm_asid;
needupdate = (pv->pv_pmap->pm_asidgen == pmap_asid_generation);
@@ -1192,7 +1198,8 @@
pg = PHYS_TO_VM_PAGE(pa);
if (pg) {
- int *attrs = &pg->mdpage.pvh_attrs;
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+ int *attrs = &md->pvh_attrs;
/* Set page referenced/modified status based on flags */
if (flags & VM_PROT_WRITE)
@@ -1646,7 +1653,8 @@
#if defined(MIPS3_PLUS) /* XXX mmu XXX */
pg = PHYS_TO_VM_PAGE(phys);
if (mips_cache_virtual_alias) {
- pv = pg->mdpage.pvh_list;
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+ pv = md->pvh_list;
if ((pv->pv_flags & PV_UNCACHED) == 0 &&
mips_cache_indexof(pv->pv_va) != mips_cache_indexof(va))
mips_dcache_wbinv_range_index(pv->pv_va, PAGE_SIZE);
@@ -1748,6 +1756,7 @@
bool
pmap_clear_reference(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
int *attrp;
bool rv;
@@ -1756,7 +1765,7 @@
printf("pmap_clear_reference(%#"PRIxPADDR")\n",
VM_PAGE_TO_PHYS(pg));
#endif
- attrp = &pg->mdpage.pvh_attrs;
+ attrp = &md->pvh_attrs;
rv = *attrp & PGA_REFERENCED;
*attrp &= ~PGA_REFERENCED;
return rv;
@@ -1771,8 +1780,9 @@
bool
pmap_is_referenced(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
- return pg->mdpage.pvh_attrs & PGA_REFERENCED;
+ return md->pvh_attrs & PGA_REFERENCED;
}
/*
@@ -1781,6 +1791,7 @@
bool
pmap_clear_modify(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
struct pmap *pmap;
struct pv_entry *pv;
pt_entry_t *pte;
@@ -1793,13 +1804,13 @@
if (pmapdebug & PDB_FOLLOW)
printf("pmap_clear_modify(%#"PRIxPADDR")\n", VM_PAGE_TO_PHYS(pg));
#endif
- attrp = &pg->mdpage.pvh_attrs;
+ attrp = &md->pvh_attrs;
rv = *attrp & PGA_MODIFIED;
*attrp &= ~PGA_MODIFIED;
if (!rv) {
return rv;
}
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
if (pv->pv_pmap == NULL) {
return true;
}
@@ -1849,8 +1860,9 @@
bool
pmap_is_modified(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
- return pg->mdpage.pvh_attrs & PGA_MODIFIED;
+ return md->pvh_attrs & PGA_MODIFIED;
}
/*
@@ -1862,9 +1874,11 @@
pmap_set_modified(paddr_t pa)
{
struct vm_page *pg;
+ struct vm_page_md *md;
pg = PHYS_TO_VM_PAGE(pa);
- pg->mdpage.pvh_attrs |= PGA_MODIFIED | PGA_REFERENCED;
+ md = VM_PAGE_TO_MD(pg);
+ md->pvh_attrs |= PGA_MODIFIED | PGA_REFERENCED;
}
/******************** misc. functions ********************/
@@ -1914,9 +1928,10 @@
void
pmap_enter_pv(pmap_t pmap, vaddr_t va, struct vm_page *pg, u_int *npte)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
pv_entry_t pv, npv;
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
#ifdef DEBUG
if (pmapdebug & PDB_ENTER)
printf("pmap_enter: pv %p: was %#"PRIxVADDR"/%p/%p\n",
@@ -2066,6 +2081,7 @@
void
pmap_remove_pv(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, npv;
int last;
@@ -2075,7 +2091,7 @@
VM_PAGE_TO_PHYS(pg));
#endif
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
/*
* If it is the first entry on the list, it is actually
@@ -2119,7 +2135,7 @@
* removed. If it was, then reenable caching.
*/
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
for (npv = pv->pv_next; npv; npv = npv->pv_next) {
if (mips_cache_indexof(pv->pv_va ^ npv->pv_va))
break;
@@ -2142,6 +2158,7 @@
pmap_pv_page_alloc(struct pool *pp, int flags)
{
struct vm_page *pg;
+ struct vm_page_md *md;
paddr_t phys;
#if defined(MIPS3_PLUS)
pv_entry_t pv;
@@ -2152,6 +2169,7 @@
if (pg == NULL)
return NULL;
+ md = VM_PAGE_TO_MD(pg);
phys = VM_PAGE_TO_PHYS(pg);
#ifdef _LP64
KASSERT(mips3_xkphys_cached);
@@ -2162,7 +2180,7 @@
#if defined(MIPS3_PLUS)
if (mips_cache_virtual_alias) {
pg = PHYS_TO_VM_PAGE(phys);
- pv = pg->mdpage.pvh_list;
+ pv = md->pvh_list;
if ((pv->pv_flags & PV_UNCACHED) == 0 &&
mips_cache_indexof(pv->pv_va) != mips_cache_indexof(va))
mips_dcache_wbinv_range_index(pv->pv_va, PAGE_SIZE);
@@ -2251,7 +2269,8 @@
#if defined(MIPS3_PLUS)
if (mips_cache_virtual_alias) {
pg = PHYS_TO_VM_PAGE(pa);
- pv = pg->mdpage.pvh_list;
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
+ pv = md->pvh_list;
if ((pv->pv_flags & PV_UNCACHED) == 0 &&
mips_cache_indexof(pv->pv_va) != mips_cache_indexof(va))
mips_dcache_wbinv_range_index(pv->pv_va, PAGE_SIZE);
