Commit 4b2a9315 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/64s: POWER10 CPU Kconfig build option 



This adds basic POWER10_CPU option, which builds with -mcpu=power10.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220923033004.536127-1-npiggin@gmail.com
parent 465dda9d

arch/powerpc/Makefile

+6 −1
Original line number Diff line number Diff line
@@ -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)

arch/powerpc/platforms/Kconfig.cputype

+6 −0
Original line number Diff line number Diff line
@@ -172,6 +172,11 @@ 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 && PPC_E500
@@ -240,6 +245,7 @@ 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