This adds basic POWER10_CPU option, which builds with -mcpu=power10.
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
There's quite a lot of asm and linker changes slated for the next merge
window already so I may leave the pcrel patch for next time. I think we
can add the basic POWER10 build option though.
Thanks,
Nick
arch/powerpc/Makefile | 7 ++++++-
arch/powerpc/platforms/Kconfig.cputype | 8 +++++++-
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 8a3d69b02672..ea88af26f8c6 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -192,9 +192,14 @@ ifdef CONFIG_476FPE_ERR46
-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
endif
-# No AltiVec or VSX instructions when building kernel
+# No prefix or pcrel
+KBUILD_CFLAGS += $(call cc-option,-mno-prefixed)
+KBUILD_CFLAGS += $(call cc-option,-mno-pcrel)
+
+# No AltiVec or VSX or MMA instructions when building kernel
KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
+KBUILD_CFLAGS += $(call cc-option,-mno-mma)
# No SPE instruction when building kernel
# (We use all available options to help semi-broken compilers)
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc/platforms/Kconfig.cputype
index 4017be72e46f..1f7c903ea664 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -171,6 +171,11 @@ config POWER9_CPU
depends on PPC_BOOK3S_64
select ARCH_HAS_FAST_MULTIPLIER
+config POWER10_CPU
+ bool "POWER10"
+ depends on PPC_BOOK3S_64
+ select ARCH_HAS_FAST_MULTIPLIER
+
config E5500_CPU
bool "Freescale e5500"
depends on PPC64 && E500
@@ -239,6 +244,7 @@ config TARGET_CPU
default "power7" if POWER7_CPU
default "power8" if POWER8_CPU
default "power9" if POWER9_CPU
+ default "power10" if POWER10_CPU
default "405" if 405_CPU
default "440" if 440_CPU
default "464" if 464_CPU
--
2.37.2
