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From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
To: horms@verge.net.au, kexec@lists.infradead.org
Subject: [PATCH] ppc64/kexec/purgatory Fix RTAS calls in Little Endian mode.
Date: Mon, 13 Jan 2014 18:55:36 +0100	[thread overview]
Message-ID: <20140113175536.14913.16060.stgit@nimbus> (raw)

RTAS is expecting parameters in Big Endian order so we have to byte swap
them in LE mode.

In the purgatory RTAS calls are only made for debug output.

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
---
 purgatory/arch/ppc64/console-ppc64.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/purgatory/arch/ppc64/console-ppc64.c b/purgatory/arch/ppc64/console-ppc64.c
index 78a233b..b80183c 100644
--- a/purgatory/arch/ppc64/console-ppc64.c
+++ b/purgatory/arch/ppc64/console-ppc64.c
@@ -21,6 +21,9 @@
 
 #include <purgatory.h>
 #include "hvCall.h"
+#include <byteswap.h>
+#include <endian.h>
+#include <asm/byteorder.h>
 
 extern int debug;
 
@@ -36,6 +39,7 @@ void putchar(int c)
 		putchar('\r');
 
 	buff[0] = c;
-	plpar_hcall_norets(H_PUT_TERM_CHAR, 0, 1, lbuf[0], lbuf[1]);
+	plpar_hcall_norets(H_PUT_TERM_CHAR, 0, 1,
+			   __cpu_to_be64(lbuf[0]), __cpu_to_be64(lbuf[1]));
 	return;
 }


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                 reply	other threads:[~2014-01-13 17:56 UTC|newest]

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