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[S390] Add config option for z196 code generation.

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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>
This commit is contained in:
Heiko Carstens
2010-10-25 16:10:17 +02:00
committed by Martin Schwidefsky
parent 7aca2eda5c
commit f861e40572
3 changed files with 15 additions and 2 deletions
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arch/s390/kernel/head.S
+6 -2
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@@ -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