diff options
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/kernel/setup.c | |
parent | d1e57508fbd63b340788afe6f2c74a608603e714 (diff) |
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/kernel/setup.c')
-rw-r--r-- | arch/s390/kernel/setup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index cfdad57957f..2568590973a 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -1006,6 +1006,9 @@ static void __init setup_hwcaps(void) case 0x2818: strcpy(elf_platform, "z196"); break; + case 0x2827: + strcpy(elf_platform, "zEC12"); + break; } } |