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[src/uebayasi-xip]: src/sys/arch/mips/mips Use VM_PAGE_TO_MD(). Only compile...
details: https://anonhg.NetBSD.org/src/rev/c69f529e8132
branches: uebayasi-xip
changeset: 751605:c69f529e8132
user: uebayasi <uebayasi%NetBSD.org@localhost>
date: Thu Feb 25 04:46:28 2010 +0000
description:
Use VM_PAGE_TO_MD(). Only compile tested.
diffstat:
sys/arch/mips/mips/pmap.c | 57 ++++++++++++++++++++++++++++++----------------
1 files changed, 37 insertions(+), 20 deletions(-)
diffs (257 lines):
diff -r c888cfc835ac -r c69f529e8132 sys/arch/mips/mips/pmap.c
--- a/sys/arch/mips/mips/pmap.c Thu Feb 25 04:33:44 2010 +0000
+++ b/sys/arch/mips/mips/pmap.c Thu Feb 25 04:46:28 2010 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pmap.c,v 1.188 2009/12/14 00:46:07 matt Exp $ */
+/* $NetBSD: pmap.c,v 1.188.2.1 2010/02/25 04:46:28 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 1.188 2009/12/14 00:46:07 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.188.2.1 2010/02/25 04:46:28 uebayasi Exp $");
/*
* Manages physical address maps.
@@ -265,6 +265,7 @@
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 +278,8 @@
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 +524,7 @@
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 +863,7 @@
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 +881,7 @@
/* 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 +897,7 @@
/* 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 +1082,7 @@
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 +1094,7 @@
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);
@@ -1189,7 +1193,8 @@
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)
@@ -1643,7 +1648,8 @@
#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);
@@ -1745,6 +1751,7 @@
bool
pmap_clear_reference(struct vm_page *pg)
{
+ struct vm_page_md * const md = VM_PAGE_TO_MD(pg);
int *attrp;
bool rv;
@@ -1753,7 +1760,7 @@
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;
@@ -1768,8 +1775,9 @@
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;
}
/*
@@ -1778,6 +1786,7 @@
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;
@@ -1790,13 +1799,13 @@
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;
}
@@ -1846,8 +1855,9 @@
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;
}
/*
@@ -1859,9 +1869,11 @@
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 ********************/
@@ -1911,9 +1923,10 @@
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",
@@ -2063,6 +2076,7 @@
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;
@@ -2072,7 +2086,7 @@
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
@@ -2116,7 +2130,7 @@
* 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;
@@ -2139,6 +2153,7 @@
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;
@@ -2149,6 +2164,7 @@
if (pg == NULL)
return NULL;
+ md = VM_PAGE_TO_MD(pg);
phys = VM_PAGE_TO_PHYS(pg);
#ifdef _LP64
KASSERT(mips3_xkphys_cached);
@@ -2159,7 +2175,7 @@
#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);
@@ -2248,7 +2264,8 @@
#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);
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