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Eliminate pmap_page_lookup() and its uses. Instead, use PHYS_TO_VM_PAGE()

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to convert the pte's physical address into a vm page.

Reviewed by:	peter
This commit is contained in:
Alan Cox 2003-08-16 03:11:33 +00:00
parent 047c5be3e7
commit 6700fc865c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=118983
1 changed files with 4 additions and 40 deletions
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44
sys/amd64/amd64/pmap.c
View file

@ -221,7 +221,6 @@ static void pmap_insert_entry(pmap_t pmap, vm_offset_t va,
static vm_page_t pmap_allocpte(pmap_t pmap, vm_offset_t va);
static vm_page_t _pmap_allocpte(pmap_t pmap, vm_pindex_t ptepindex);
static vm_page_t pmap_page_lookup(vm_object_t object, vm_pindex_t pindex);
static int pmap_unuse_pt(pmap_t, vm_offset_t, vm_page_t);
static vm_offset_t pmap_kmem_choose(vm_offset_t addr);
static void *pmap_pv_allocf(uma_zone_t zone, int bytes, u_int8_t *flags, int wait);
@ -860,22 +859,6 @@ pmap_qremove(vm_offset_t sva, int count)
pmap_invalidate_range(kernel_pmap, sva, va);
}
static vm_page_t
pmap_page_lookup(vm_object_t object, vm_pindex_t pindex)
{
vm_page_t m;
retry:
m = vm_page_lookup(object, pindex);
if (m != NULL) {
vm_page_lock_queues();
if (vm_page_sleep_if_busy(m, FALSE, "pplookp"))
goto retry;
vm_page_unlock_queues();
}
return m;
}
/***************************************************
* Page table page management routines.....
***************************************************/
@ -1132,8 +1115,7 @@ _pmap_allocpte(pmap, ptepindex)
_pmap_allocpte(pmap, NUPDE + NUPDPE + pml4index);
} else {
/* Add reference to pdp page */
pdppg = pmap_page_lookup(pmap->pm_pteobj,
NUPDE + NUPDPE + pml4index);
pdppg = PHYS_TO_VM_PAGE(*pml4);
pdppg->hold_count++;
}
pdp = (pdp_entry_t *)PHYS_TO_DMAP(*pml4 & PG_FRAME);
@ -1168,8 +1150,7 @@ _pmap_allocpte(pmap, ptepindex)
_pmap_allocpte(pmap, NUPDE + pdpindex);
} else {
/* Add reference to the pd page */
pdpg = pmap_page_lookup(pmap->pm_pteobj,
NUPDE + pdpindex);
pdpg = PHYS_TO_VM_PAGE(*pdp);
pdpg->hold_count++;
}
}
@ -1227,16 +1208,7 @@ pmap_allocpte(pmap_t pmap, vm_offset_t va)
* hold count, and activate it.
*/
if (pd != 0 && (*pd & PG_V) != 0) {
/*
* In order to get the page table page, try the
* hint first.
*/
if (pmap->pm_pteobj->root &&
(pmap->pm_pteobj->root->pindex == ptepindex)) {
m = pmap->pm_pteobj->root;
} else {
m = pmap_page_lookup(pmap->pm_pteobj, ptepindex);
}
m = PHYS_TO_VM_PAGE(*pd);
m->hold_count++;
return m;
}
@ -1982,7 +1954,6 @@ pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_page_t mpte)
if (mpte && (mpte->pindex == ptepindex)) {
mpte->hold_count++;
} else {
retry:
/*
* Get the page directory entry
*/
@ -1995,14 +1966,7 @@ pmap_enter_quick(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_page_t mpte)
if (ptepa && (*ptepa & PG_V) != 0) {
if (*ptepa & PG_PS)
panic("pmap_enter_quick: unexpected mapping into 2MB page");
if (pmap->pm_pteobj->root &&
(pmap->pm_pteobj->root->pindex == ptepindex)) {
mpte = pmap->pm_pteobj->root;
} else {
mpte = pmap_page_lookup(pmap->pm_pteobj, ptepindex);
}
if (mpte == NULL)
goto retry;
mpte = PHYS_TO_VM_PAGE(*ptepa);
mpte->hold_count++;
} else {
mpte = _pmap_allocpte(pmap, ptepindex);