[src/trunk]: src/sys/arch/sun2/include Added a prototype for the internal fun...

[fredette <fredette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8e3c8dd854fc
branches:  trunk
changeset: 508127:8e3c8dd854fc
user:      fredette <fredette%NetBSD.org@localhost>
date:      Fri Apr 06 13:12:06 2001 +0000

description:
Added a prototype for the internal function _pmap_extract_pmeg,
used by the bus_dma implementation when double-mapping pages
by hand.
Now define PMAP_OBMEM for completeness.

diffstat:

 sys/arch/sun2/include/pmap.h |  6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diffs (27 lines):

diff -r 9d63e6219355 -r 8e3c8dd854fc sys/arch/sun2/include/pmap.h
--- a/sys/arch/sun2/include/pmap.h      Fri Apr 06 13:09:10 2001 +0000
+++ b/sys/arch/sun2/include/pmap.h      Fri Apr 06 13:12:06 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.h,v 1.1 2001/03/29 04:44:20 fredette Exp $        */
+/*     $NetBSD: pmap.h,v 1.2 2001/04/06 13:12:06 fredette Exp $        */
 
 /*-
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -91,6 +91,9 @@
 /* Map a given physical region to a virtual region */
 extern vm_offset_t pmap_map __P((vm_offset_t, vm_offset_t, vm_offset_t, int));
 
+/* Extract the PMEG for a given physical address. */
+extern int _pmap_extract_pmeg __P((pmap_t, vm_offset_t));
+
 /*
  * Since PTEs also contain type bits, we have to have some way
  * to tell pmap_enter `this is an IO page' or `this is not to
@@ -100,6 +103,7 @@
  * The values below must agree with pte.h such that:
  *     (PMAP_OBIO << PG_MOD_SHIFT) == PGT_OBIO
  */
+#define        PMAP_OBMEM      0x00
 #define        PMAP_OBIO       0x04    /* tells pmap_enter to use PG_OBIO */
 #define        PMAP_VME16      0x08    /* etc */
 #define        PMAP_MBMEM      0x08    /* etc (sun-2/120) */