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Implement pmap_is_prefaultable().

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Reviewed by:	nwhitehorn
This commit is contained in:
alc 2010-11-01 02:22:48 +00:00
parent fb06d48daa
commit 0fbc128e60
2 changed files with 30 additions and 0 deletions
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15
sys/powerpc/aim/mmu_oea.c
View File

@ -304,6 +304,7 @@ vm_paddr_t moea_extract(mmu_t, pmap_t, vm_offset_t);
vm_page_t moea_extract_and_hold(mmu_t, pmap_t, vm_offset_t, vm_prot_t);
void moea_init(mmu_t);
boolean_t moea_is_modified(mmu_t, vm_page_t);
boolean_t moea_is_prefaultable(mmu_t, pmap_t, vm_offset_t);
boolean_t moea_is_referenced(mmu_t, vm_page_t);
boolean_t moea_ts_referenced(mmu_t, vm_page_t);
vm_offset_t moea_map(mmu_t, vm_offset_t *, vm_offset_t, vm_offset_t, int);
@ -347,6 +348,7 @@ static mmu_method_t moea_methods[] = {
MMUMETHOD(mmu_extract_and_hold, moea_extract_and_hold),
MMUMETHOD(mmu_init, moea_init),
MMUMETHOD(mmu_is_modified, moea_is_modified),
MMUMETHOD(mmu_is_prefaultable, moea_is_prefaultable),
MMUMETHOD(mmu_is_referenced, moea_is_referenced),
MMUMETHOD(mmu_ts_referenced, moea_ts_referenced),
MMUMETHOD(mmu_map, moea_map),
@ -1324,6 +1326,19 @@ moea_is_modified(mmu_t mmu, vm_page_t m)
return (moea_query_bit(m, PTE_CHG));
}
boolean_t
moea_is_prefaultable(mmu_t mmu, pmap_t pmap, vm_offset_t va)
{
struct pvo_entry *pvo;
boolean_t rv;
PMAP_LOCK(pmap);
pvo = moea_pvo_find_va(pmap, va & ~ADDR_POFF, NULL);
rv = pvo == NULL || (pvo->pvo_pte.pte.pte_hi & PTE_VALID) == 0;
PMAP_UNLOCK(pmap);
return (rv);
}
void
moea_clear_reference(mmu_t mmu, vm_page_t m)
{

15
sys/powerpc/aim/mmu_oea64.c
View File

@ -400,6 +400,7 @@ vm_paddr_t moea64_extract(mmu_t, pmap_t, vm_offset_t);
vm_page_t moea64_extract_and_hold(mmu_t, pmap_t, vm_offset_t, vm_prot_t);
void moea64_init(mmu_t);
boolean_t moea64_is_modified(mmu_t, vm_page_t);
boolean_t moea64_is_prefaultable(mmu_t, pmap_t, vm_offset_t);
boolean_t moea64_is_referenced(mmu_t, vm_page_t);
boolean_t moea64_ts_referenced(mmu_t, vm_page_t);
vm_offset_t moea64_map(mmu_t, vm_offset_t *, vm_offset_t, vm_offset_t, int);
@ -441,6 +442,7 @@ static mmu_method_t moea64_methods[] = {
MMUMETHOD(mmu_extract_and_hold, moea64_extract_and_hold),
MMUMETHOD(mmu_init, moea64_init),
MMUMETHOD(mmu_is_modified, moea64_is_modified),
MMUMETHOD(mmu_is_prefaultable, moea64_is_prefaultable),
MMUMETHOD(mmu_is_referenced, moea64_is_referenced),
MMUMETHOD(mmu_ts_referenced, moea64_ts_referenced),
MMUMETHOD(mmu_map, moea64_map),
@ -1786,6 +1788,19 @@ moea64_is_modified(mmu_t mmu, vm_page_t m)
return (moea64_query_bit(m, LPTE_CHG));
}
boolean_t
moea64_is_prefaultable(mmu_t mmu, pmap_t pmap, vm_offset_t va)
{
struct pvo_entry *pvo;
boolean_t rv;
PMAP_LOCK(pmap);
pvo = moea64_pvo_find_va(pmap, va & ~ADDR_POFF);
rv = pvo == NULL || (pvo->pvo_pte.lpte.pte_hi & LPTE_VALID) == 0;
PMAP_UNLOCK(pmap);
return (rv);
}
void
moea64_clear_reference(mmu_t mmu, vm_page_t m)
{