diff options
Diffstat (limited to 'sys/powerpc/aim/mmu_oea.c')
| -rw-r--r-- | sys/powerpc/aim/mmu_oea.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/powerpc/aim/mmu_oea.c b/sys/powerpc/aim/mmu_oea.c index d1a0faa..db2c3bb 100644 --- a/sys/powerpc/aim/mmu_oea.c +++ b/sys/powerpc/aim/mmu_oea.c @@ -322,6 +322,7 @@ boolean_t moea_is_modified(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); boolean_t moea_page_exists_quick(mmu_t, pmap_t, vm_page_t); +int moea_page_wired_mappings(mmu_t, vm_page_t); void moea_pinit(mmu_t, pmap_t); void moea_pinit0(mmu_t, pmap_t); void moea_protect(mmu_t, pmap_t, vm_offset_t, vm_offset_t, vm_prot_t); @@ -359,6 +360,7 @@ static mmu_method_t moea_methods[] = { MMUMETHOD(mmu_ts_referenced, moea_ts_referenced), MMUMETHOD(mmu_map, moea_map), MMUMETHOD(mmu_page_exists_quick,moea_page_exists_quick), + MMUMETHOD(mmu_page_wired_mappings,moea_page_wired_mappings), MMUMETHOD(mmu_pinit, moea_pinit), MMUMETHOD(mmu_pinit0, moea_pinit0), MMUMETHOD(mmu_protect, moea_protect), @@ -1492,6 +1494,26 @@ moea_page_exists_quick(mmu_t mmu, pmap_t pmap, vm_page_t m) return (FALSE); } +/* + * Return the number of managed mappings to the given physical page + * that are wired. + */ +int +moea_page_wired_mappings(mmu_t mmu, vm_page_t m) +{ + struct pvo_entry *pvo; + int count; + + count = 0; + if (!moea_initialized || (m->flags & PG_FICTITIOUS) != 0) + return (count); + mtx_assert(&vm_page_queue_mtx, MA_OWNED); + LIST_FOREACH(pvo, vm_page_to_pvoh(m), pvo_vlink) + if ((pvo->pvo_vaddr & PVO_WIRED) != 0) + count++; + return (count); +} + static u_int moea_vsidcontext; void |
