diff options
| author | alc <alc@FreeBSD.org> | 2009-03-06 17:40:58 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2009-03-06 17:40:58 +0000 |
| commit | b5b061b75beabed75552bc163a30933c7a602779 (patch) | |
| tree | 54a22d1c215bd762d37650b31d858b4244f8d0ed /sys/amd64 | |
| parent | a2af9f1993054fa9f9c5ce415f8032558619467c (diff) | |
| download | FreeBSD-src-b5b061b75beabed75552bc163a30933c7a602779.zip FreeBSD-src-b5b061b75beabed75552bc163a30933c7a602779.tar.gz | |
If the PDE is known, then use the direct mapping instead of the recursive
mapping to access the PTE.
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index 6f66042..3c7e284 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -3801,7 +3801,9 @@ pmap_remove_pages(pmap_t pmap) if ((tpte & PG_PS) != 0) pte = pde; else { - pte = vtopte(pv->pv_va); + pte = (pt_entry_t *)PHYS_TO_DMAP(tpte & + PG_FRAME); + pte = &pte[pmap_pte_index(pv->pv_va)]; tpte = *pte & ~PG_PTE_PAT; } @@ -4494,7 +4496,7 @@ pmap_change_attr_locked(vm_offset_t va, vm_size_t size, int mode) if (!pmap_demote_pde(kernel_pmap, pde, tmpva)) return (ENOMEM); } - pte = vtopte(tmpva); + pte = pmap_pde_to_pte(pde, tmpva); if (*pte == 0) return (EINVAL); tmpva += PAGE_SIZE; @@ -4570,7 +4572,7 @@ pmap_change_attr_locked(vm_offset_t va, vm_size_t size, int mode) } else { if (cache_bits_pte < 0) cache_bits_pte = pmap_cache_bits(mode, 0); - pte = vtopte(tmpva); + pte = pmap_pde_to_pte(pde, tmpva); if ((*pte & PG_PTE_CACHE) != cache_bits_pte) { pmap_pte_attr(pte, cache_bits_pte); if (!changed) |
