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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-11-13 10:26:37 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-11-23 11:14:31 +0100 |
| commit | 991c15053a3fc209d76f03c73d4f0621025c9452 (patch) | |
| tree | 6a21d71eba7e0e67521d54c914a11625685d7cba /arch/s390/Makefile | |
| parent | d1e57508fbd63b340788afe6f2c74a608603e714 (diff) | |
| download | linux-991c15053a3fc209d76f03c73d4f0621025c9452.tar.bz2 | |
s390: add zEC12 code generation support
Allow to generate code that only runs on zEC12 machines.
Also add a check which prevents the kernel to run on machines which
do not have any of the following new facilities installed:
- (48) decimal-floating-point zoned-conversion
- (49) execution-hint
- (49) load-and-trap
- (49) miscellaneous-instruction-extensions
- (49) processor-assist
- (50) constrained transactional-execution
- (73) transactional-execution
48, 49, 50 and 73 are the bit numbers of the facility indications for
each of the required facilities.
Note that we assume that user-space gets compiled with the same
compiler options, therefore we also test for a dfp facility even
if the kernel doesn't make use of it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/Makefile')
| -rw-r--r-- | arch/s390/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 49e76e8b477d..4b8e08b56f49 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -41,6 +41,7 @@ cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109) cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10) cflags-$(CONFIG_MARCH_Z196) += $(call cc-option,-march=z196) +cflags-$(CONFIG_MARCH_ZEC12) += $(call cc-option,-march=zEC12) #KBUILD_IMAGE is necessary for make rpm KBUILD_IMAGE :=arch/s390/boot/image |