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s390: allow to compile with z16 optimizations

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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>
This commit is contained in:
Heiko Carstens
2021-07-20 14:28:08 +02:00
parent 6203ac3029
commit e69a7ff8d5
2 changed files with 21 additions and 0 deletions
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arch/s390/Makefile
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@@ -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