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The physical address stored in the vm_page is page aligned. There is no

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need to mask off the page offset bits.  (This operation made some sense
prior to i386/i386/pmap.c revision 1.254 when we passed a physical address
rather than a vm_page pointer to pmap_enter().)
This commit is contained in:
Alan Cox 2004-10-03 00:16:43 +00:00
parent 763f534e3c
commit 8ceb3dcb60
4 changed files with 4 additions and 4 deletions
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2
sys/alpha/alpha/pmap.c
View File

@ -1686,7 +1686,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
}
origpte = *pte;
pa = VM_PAGE_TO_PHYS(m) & ~PAGE_MASK;
pa = VM_PAGE_TO_PHYS(m);
managed = 0;
opa = pmap_pte_pa(pte);

2
sys/amd64/amd64/pmap.c
View File

@ -1880,7 +1880,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
if (pte == NULL)
panic("pmap_enter: invalid page directory va=%#lx\n", va);
pa = VM_PAGE_TO_PHYS(m) & PG_FRAME;
pa = VM_PAGE_TO_PHYS(m);
origpte = *pte;
opa = origpte & PG_FRAME;

2
sys/i386/i386/pmap.c
View File

@ -1938,7 +1938,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
(uintmax_t)pmap->pm_pdir[PTDPTDI], va);
}
pa = VM_PAGE_TO_PHYS(m) & PG_FRAME;
pa = VM_PAGE_TO_PHYS(m);
origpte = *pte;
opa = origpte & PG_FRAME;

2
sys/ia64/ia64/pmap.c
View File

@ -1526,7 +1526,7 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
origpte = *pte;
opa = (pmap_lpte_present(&origpte)) ? pmap_lpte_ppn(&origpte) : 0UL;
managed = FALSE;
pa = VM_PAGE_TO_PHYS(m) & ~PAGE_MASK;
pa = VM_PAGE_TO_PHYS(m);
/*
* Mapping has not changed, must be protection or wiring change.