From: deraadt <deraadt@openbsd.org>
Date: Wed, 31 Jan 1996 08:33:37 +0000 (+0000)
Subject: from ragge; add uvtopte() macro, to get user pte address easily
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=e88521936d6fb2530ab1ffef0943ddab3ee0a185;p=openbsd

from ragge; add uvtopte() macro, to get user pte address easily
---

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]))