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| author | Heiko Carstens <hca@linux.ibm.com> | 2021-07-20 14:28:08 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2022-04-06 13:08:50 +0200 |
| commit | e69a7ff8d5deefc81bd9ce00b3ece83950a88fe6 (patch) | |
| tree | d983c4786d6532f93fd9fd3250107076c174642d | |
| parent | 6203ac30297847ddc5e122ccdcbe9941fbc258e6 (diff) | |
| download | linux-stable-e69a7ff8d5deefc81bd9ce00b3ece83950a88fe6.tar.gz linux-stable-e69a7ff8d5deefc81bd9ce00b3ece83950a88fe6.tar.bz2 linux-stable-e69a7ff8d5deefc81bd9ce00b3ece83950a88fe6.zip | |
s390: allow to compile with z16 optimizations
Add config and compile options which allow to compile with z16
optimizations if the compiler supports it.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
| -rw-r--r-- | arch/s390/Kconfig | 19 | ||||
| -rw-r--r-- | arch/s390/Makefile | 2 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 77b5a03de13a..e084c72104f8 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -255,6 +255,10 @@ config HAVE_MARCH_Z15_FEATURES def_bool n select HAVE_MARCH_Z14_FEATURES +config HAVE_MARCH_Z16_FEATURES + def_bool n + select HAVE_MARCH_Z15_FEATURES + choice prompt "Processor type" default MARCH_Z196 @@ -312,6 +316,14 @@ config MARCH_Z15 and 8561 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_Z16 + bool "IBM z16" + select HAVE_MARCH_Z16_FEATURES + depends on $(cc-option,-march=z16) + help + Select this to enable optimizations for IBM z16 (3931 and + 3932 series). + endchoice config MARCH_Z10_TUNE @@ -332,6 +344,9 @@ config MARCH_Z14_TUNE config MARCH_Z15_TUNE def_bool TUNE_Z15 || MARCH_Z15 && TUNE_DEFAULT +config MARCH_Z16_TUNE + def_bool TUNE_Z16 || MARCH_Z16 && TUNE_DEFAULT + choice prompt "Tune code generation" default TUNE_DEFAULT @@ -372,6 +387,10 @@ config TUNE_Z15 bool "IBM z15" depends on $(cc-option,-mtune=z15) +config TUNE_Z16 + bool "IBM z16" + depends on $(cc-option,-mtune=z16) + endchoice config 64BIT diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 7a65bca1e5af..e441b60b1812 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -42,6 +42,7 @@ mflags-$(CONFIG_MARCH_ZEC12) := -march=zEC12 mflags-$(CONFIG_MARCH_Z13) := -march=z13 mflags-$(CONFIG_MARCH_Z14) := -march=z14 mflags-$(CONFIG_MARCH_Z15) := -march=z15 +mflags-$(CONFIG_MARCH_Z16) := -march=z16 export CC_FLAGS_MARCH := $(mflags-y) @@ -54,6 +55,7 @@ cflags-$(CONFIG_MARCH_ZEC12_TUNE) += -mtune=zEC12 cflags-$(CONFIG_MARCH_Z13_TUNE) += -mtune=z13 cflags-$(CONFIG_MARCH_Z14_TUNE) += -mtune=z14 cflags-$(CONFIG_MARCH_Z15_TUNE) += -mtune=z15 +cflags-$(CONFIG_MARCH_Z16_TUNE) += -mtune=z16 cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include |