diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-01-31 08:33:38 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1996-01-31 08:33:38 +0000 |
| commit | 3188e57db7fbe33178074568261e917f50a9f47c (patch) | |
| tree | 3525ca8464dc20c586da143fe4aed5de5b37259b /sys | |
| parent | 5e4fbe8e5ce671b087c6f42ba030a69620dbd254 (diff) | |
from ragge; add uvtopte() macro, to get user pte address easily
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/vax/include/pte.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/arch/vax/include/pte.h b/sys/arch/vax/include/pte.h index fb5bd91a5aa..1251b7fc61a 100644 --- a/sys/arch/vax/include/pte.h +++ b/sys/arch/vax/include/pte.h @@ -1,4 +1,4 @@ -/* $NetBSD: pte.h,v 1.6 1995/11/12 14:40:26 ragge Exp $ */ +/* $NetBSD: pte.h,v 1.7 1996/01/28 12:31:24 ragge Exp $ */ /* * Copyright (c) 1994 Ludd, University of Lule}, Sweden. @@ -86,3 +86,7 @@ extern pt_entry_t *Sysmap; ((((pt_entry_t *)(pt) - Sysmap) << PGSHIFT) + 0x80000000) #define kvtophys(va) \ (((kvtopte(va))->pg_pfn << PGSHIFT) | ((int)(va) & PGOFSET)) +#define uvtopte(va, pcb) \ + (((unsigned)va < 0x40000000) || ((unsigned)va > 0x40000000) ? \ + &((pcb->P0BR)[(unsigned)va >> PGSHIFT]) : \ + &((pcb->P1BR)[((unsigned)va & 0x3fffffff) >> PGSHIFT])) |