diff options
Diffstat (limited to 'sys/arm64')
-rw-r--r-- | sys/arm64/arm64/pmap.c | 31 |
1 files changed, 8 insertions, 23 deletions
diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c index 6839758..5e2e7fc 100644 --- a/sys/arm64/arm64/pmap.c +++ b/sys/arm64/arm64/pmap.c @@ -2514,29 +2514,17 @@ pmap_insert_pt_page(pmap_t pmap, vm_page_t mpte) } /* - * Looks for a page table page mapping the specified virtual address in the - * specified pmap's collection of idle page table pages. Returns NULL if there - * is no page table page corresponding to the specified virtual address. + * Removes the page table page mapping the specified virtual address from the + * specified pmap's collection of idle page table pages, and returns it. + * Otherwise, returns NULL if there is no page table page corresponding to the + * specified virtual address. */ static __inline vm_page_t -pmap_lookup_pt_page(pmap_t pmap, vm_offset_t va) +pmap_remove_pt_page(pmap_t pmap, vm_offset_t va) { PMAP_LOCK_ASSERT(pmap, MA_OWNED); - return (vm_radix_lookup(&pmap->pm_root, pmap_l2_pindex(va))); -} - -/* - * Removes the specified page table page from the specified pmap's collection - * of idle page table pages. The specified page table page must be a member of - * the pmap's collection. - */ -static __inline void -pmap_remove_pt_page(pmap_t pmap, vm_page_t mpte) -{ - - PMAP_LOCK_ASSERT(pmap, MA_OWNED); - vm_radix_remove(&pmap->pm_root, mpte->pindex); + return (vm_radix_remove(&pmap->pm_root, pmap_l2_pindex(va))); } /* @@ -3605,10 +3593,9 @@ pmap_remove_pages(pmap_t pmap) TAILQ_EMPTY(&mt->md.pv_list)) vm_page_aflag_clear(mt, PGA_WRITEABLE); } - ml3 = pmap_lookup_pt_page(pmap, + ml3 = pmap_remove_pt_page(pmap, pv->pv_va); if (ml3 != NULL) { - pmap_remove_pt_page(pmap, ml3); pmap_resident_count_dec(pmap,1); KASSERT(ml3->wire_count == NL3PG, ("pmap_remove_pages: l3 page wire count error")); @@ -4381,9 +4368,7 @@ pmap_demote_l2_locked(pmap_t pmap, pt_entry_t *l2, vm_offset_t va, return (NULL); } - if ((ml3 = pmap_lookup_pt_page(pmap, va)) != NULL) { - pmap_remove_pt_page(pmap, ml3); - } else { + if ((ml3 = pmap_remove_pt_page(pmap, va)) == NULL) { ml3 = vm_page_alloc(NULL, pmap_l2_pindex(va), (VIRT_IN_DMAP(va) ? VM_ALLOC_INTERRUPT : VM_ALLOC_NORMAL) | VM_ALLOC_NOOBJ | VM_ALLOC_WIRED); |