aboutsummaryrefslogtreecommitdiffstats
path: root/arch/s390/Kconfig
diff options
context:
space:
mode:
authorMartin Schwidefsky <schwidefsky@de.ibm.com>2019-02-06 08:22:11 +0100
committerHeiko Carstens <heiko.carstens@de.ibm.com>2019-09-13 12:19:14 +0200
commita0e2251132995b962281aa80ab54a9288f9e0b6b (patch)
treebf23cbba43986c2be02acf7e3bd3152539231489 /arch/s390/Kconfig
parents390/crypto: Support for SHA3 via CPACF (MSA6) (diff)
downloadlinux-dev-a0e2251132995b962281aa80ab54a9288f9e0b6b.tar.xz
linux-dev-a0e2251132995b962281aa80ab54a9288f9e0b6b.zip
s390: add support for IBM z15 machines
Add detection for machine types 0x8562 and 8x8561 and set the ELF platform name to z15. Add the miscellaneous-instruction-extension 3 facility to the list of facilities for z15. And allow to generate code that only runs on a z15 machine. Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 3289cc243d92..8c5b05d91106 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -237,6 +237,10 @@ config HAVE_MARCH_Z14_FEATURES
def_bool n
select HAVE_MARCH_Z13_FEATURES
+config HAVE_MARCH_Z15_FEATURES
+ def_bool n
+ select HAVE_MARCH_Z14_FEATURES
+
choice
prompt "Processor type"
default MARCH_Z196
@@ -308,6 +312,14 @@ config MARCH_Z14
and 3906 series). The kernel will be slightly faster but will not
work on older machines.
+config MARCH_Z15
+ bool "IBM z15"
+ select HAVE_MARCH_Z15_FEATURES
+ help
+ Select this to enable optimizations for IBM z15 (8562
+ and 8561 series). The kernel will be slightly faster but will not
+ work on older machines.
+
endchoice
config MARCH_Z900_TUNE
@@ -334,6 +346,9 @@ config MARCH_Z13_TUNE
config MARCH_Z14_TUNE
def_bool TUNE_Z14 || MARCH_Z14 && TUNE_DEFAULT
+config MARCH_Z15_TUNE
+ def_bool TUNE_Z15 || MARCH_Z15 && TUNE_DEFAULT
+
choice
prompt "Tune code generation"
default TUNE_DEFAULT
@@ -378,6 +393,9 @@ config TUNE_Z13
config TUNE_Z14
bool "IBM z14"
+config TUNE_Z15
+ bool "IBM z15"
+
endchoice
config 64BIT