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[XenPPC] [xenppc-unstable] [POWERPC] Explain the RMA values a little mor

To: xen-ppc-devel@xxxxxxxxxxxxxxxxxxx
Subject: [XenPPC] [xenppc-unstable] [POWERPC] Explain the RMA values a little more
From: Xen patchbot-xenppc-unstable <patchbot-xenppc-unstable@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 22 Aug 2006 15:20:33 +0000
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# HG changeset patch
# User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
# Node ID 6eccd4911e6c084bcc3d8bc1de8bbdb6e343f132
# Parent  13d64dec47117e45d04e934f90a96eb042d7bf41
[POWERPC] Explain the RMA values a little more

Since I did not understand them myself.

Signed-off-by: Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
---
 xen/arch/powerpc/powerpc64/ppc970.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -r 13d64dec4711 -r 6eccd4911e6c xen/arch/powerpc/powerpc64/ppc970.c
--- a/xen/arch/powerpc/powerpc64/ppc970.c       Tue Aug 22 11:16:01 2006 -0400
+++ b/xen/arch/powerpc/powerpc64/ppc970.c       Tue Aug 22 11:17:09 2006 -0400
@@ -13,9 +13,10 @@
  * along with this program; if not, write to the Free Software
  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  *
- * Copyright (C) IBM Corp. 2005
+ * Copyright (C) IBM Corp. 2005, 2006
  *
  * Authors: Hollis Blanchard <hollisb@xxxxxxxxxx>
+ *          Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
  */
 
 #include <xen/config.h>
@@ -36,7 +37,7 @@ unsigned int cpu_rma_order(void)
 unsigned int cpu_rma_order(void)
 {
     /* XXX what about non-HV mode? */
-    uint rma_log_size = 6 + 20; /* 64M */
+    uint rma_log_size = 6 + 20; /* (1 << 6) == 64 */
     return rma_log_size - PAGE_SHIFT;
 }
 

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