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-rw-r--r--arch/s390/Kconfig20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f43319c44454..f933a473b128 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -103,6 +103,7 @@ config S390
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
select ARCH_KEEP_MEMBLOCK
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+ select ARCH_STACKWALK
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_USE_BUILTIN_BSWAP
@@ -129,6 +130,7 @@ config S390
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_ARCH_VMAP_STACK
+ select HAVE_ASM_MODVERSIONS
select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
select HAVE_CMPXCHG_DOUBLE
select HAVE_CMPXCHG_LOCAL
@@ -234,6 +236,10 @@ 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
@@ -305,6 +311,14 @@ 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
@@ -331,6 +345,9 @@ 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
@@ -375,6 +392,9 @@ config TUNE_Z13
config TUNE_Z14
bool "IBM z14"
+config TUNE_Z15
+ bool "IBM z15"
+
endchoice
config 64BIT