lkml.org 
[lkml]   [2007]   [Jan]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[S390] Fix FCP dump feature detection.
From: Heiko Carstens <heiko.carstens@de.ibm.com>

[S390] Fix FCP dump feature detection.

FCP dump feature detection works only if the sclp command in head.S
was succesful. Since the sclp command is skipped if diag260 works,
we don't have any dump feature detection anymore.
Bug was introduced with d57de5a36791cb1b7285649c62f183b0d3505f7d.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

arch/s390/kernel/head64.S | 6 +++++-
1 files changed, 5 insertions(+), 1 deletion(-)

diff -urpN linux-2.6/arch/s390/kernel/head64.S linux-2.6-patched/arch/s390/kernel/head64.S
--- linux-2.6/arch/s390/kernel/head64.S 2007-01-26 17:27:27.000000000 +0100
+++ linux-2.6-patched/arch/s390/kernel/head64.S 2007-01-26 17:27:55.000000000 +0100
@@ -81,7 +81,6 @@ startup_continue:
aghi %r1,1 # size is one more than end
larl %r2,memory_chunk
stg %r1,8(%r2) # store size of chunk
- j .Ldonemem

.Lslowmemdetect:
l %r2,.Lrcp-.LPG1(%r13) # Read SCP forced command word
@@ -156,6 +155,11 @@ startup_continue:
#
# find memory chunks.
#
+ larl %r9,memory_chunk # skip tprot loop if diag260
+ lg %r9,8(%r9) # memory detection was successful
+ ltgr %r9,%r9
+ jne .Ldonemem
+
lgr %r9,%r3 # end of mem
larl %r1,.Lchkmem # set program check address
stg %r1,__LC_PGM_NEW_PSW+8
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2007-01-26 17:55    [W:0.051 / U:0.636 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site