[S390] Add config option for z196 code generation.

Add a kernel config option for the IBM zEnterprise 196. This will
produce faster code on newer compilers using the -march=z196 option.

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

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index db1696e210a..7061398341d 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -488,7 +488,9 @@ startup:
         .align 16
 2:      .long   0x000a0000,0x8badcccc
 #if defined(CONFIG_64BIT)
-#if defined(CONFIG_MARCH_Z10)
+#if defined(CONFIG_MARCH_Z196)
+        .long 0xc100efe3, 0xf46c0000
+#elif defined(CONFIG_MARCH_Z10)
         .long 0xc100efe3, 0xf0680000
 #elif defined(CONFIG_MARCH_Z9_109)
         .long 0xc100efc3, 0x00000000
@@ -498,7 +500,9 @@ startup:
         .long 0xc0000000, 0x00000000
 #endif
 #else
-#if defined(CONFIG_MARCH_Z10)
+#if defined(CONFIG_MARCH_Z196)
+        .long 0x8100c880, 0x00000000
+#elif defined(CONFIG_MARCH_Z10)
         .long 0x8100c880, 0x00000000
 #elif defined(CONFIG_MARCH_Z9_109)
         .long 0x8100c880, 0x00000000