[src/trunk]: src/sys/arch/powerpc/include/oea Add extended BAT block size def...

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

details:   https://anonhg.NetBSD.org/src/rev/827cb5b1833d
branches:  trunk
changeset: 573161:827cb5b1833d
user:      matt <matt%NetBSD.org@localhost>
date:      Fri Jan 21 00:46:23 2005 +0000

description:
Add extended BAT block size definitions.

diffstat:

 sys/arch/powerpc/include/oea/bat.h |  15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)

diffs (40 lines):

diff -r e040c6664871 -r 827cb5b1833d sys/arch/powerpc/include/oea/bat.h
--- a/sys/arch/powerpc/include/oea/bat.h        Fri Jan 21 00:45:48 2005 +0000
+++ b/sys/arch/powerpc/include/oea/bat.h        Fri Jan 21 00:46:23 2005 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bat.h,v 1.5 2003/03/14 06:21:19 matt Exp $     */
+/*     $NetBSD: bat.h,v 1.6 2005/01/21 00:46:23 matt Exp $     */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -79,10 +79,17 @@
 
 /* Lower BAT bits (all but PowerPC 601): */
 #define        BAT_RPN         (~0x1ffff)      /* physical block start */
+#define        BAT_XPN         0x00000e00      /* eXtended physical page number (0-2) */
 #define        BAT_W           0x00000040      /* 1 = write-through, 0 = write-back */
 #define        BAT_I           0x00000020      /* cache inhibit */
 #define        BAT_M           0x00000010      /* memory coherency enable */
 #define        BAT_G           0x00000008      /* guarded region (not on 601) */
+#define        BAT_X           0x00000004      /* eXtended physical page number (3) */
+
+/*
+ * BAT_XPN and BAT_X are only used when HID0[XAEN] == 1 and are used
+ * to generate the 4 MSB of physical address
+ */
 
 #define        BAT_PP          0x00000003      /* PP mask */
 #define        BAT_PP_NONE     0x00000000      /* no access permission */
@@ -96,6 +103,12 @@
 #define        BAT_Vs          0x00000002      /* valid in supervisor mode */
 #define        BAT_Vu          0x00000001      /* valid in user mode */
 
+#define        BAT_XBL         0x0001e000      /* eXtended Block Length (*) */
+#define        BAT_XBL_512M    0x00002000      /* XBL for 512MB */
+#define        BAT_XBL_1G      0x00006000      /* XBL for 1GB */
+#define        BAT_XBL_2G      0x0000e000      /* XBL for 2GB */
+#define        BAT_XBL_4G      0x0001e000      /* XBL for 4GB */
+
 #define        BAT_V           (BAT_Vs|BAT_Vu)
 
 /* Block Length encoding (all but PowerPC 601): */