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| author | Michael Ellerman <mpe@ellerman.id.au> | 2023-03-30 02:43:08 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-08-25 01:39:29 +0300 |
| commit | 50832720ec54c39ab189cd5e057aec1c514978ce (patch) | |
| tree | 09ed4bccc3f2af53b7eab91d4f8a37ffdf885280 /arch/powerpc | |
| parent | 1eafbd8764b10798934344bd40395b27cec63145 (diff) | |
| download | linux-50832720ec54c39ab189cd5e057aec1c514978ce.tar.xz | |
powerpc/64s: Move CPU -mtune options into Kconfig
Currently the -mtune options are set in the Makefile, depending on what
the compiler supports.
One downside of doing it that way is that the chosen -mtune option is
not recorded in the .config.
Another downside is that if there's ever a need to do more complicated
logic to calculate the correct option, that gets messy in the Makefile.
So move the determination of which -mtune option to use into Kconfig
logic.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230329234308.2215833-1-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Makefile | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 7 |
2 files changed, 8 insertions, 3 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index cbd34459cce0..f19dbaa1d541 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -157,9 +157,7 @@ endif CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CONFIG_TARGET_CPU) AFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CONFIG_TARGET_CPU) -CFLAGS-$(CONFIG_POWERPC64_CPU) += $(call cc-option,-mtune=power10, \ - $(call cc-option,-mtune=power9, \ - $(call cc-option,-mtune=power8))) +CFLAGS-y += $(CONFIG_TUNE_CPU) asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 45fd975ef521..db39eca3b1be 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -275,6 +275,13 @@ config TARGET_CPU default "e500mc" if E500MC_CPU default "powerpc" if POWERPC_CPU +config TUNE_CPU + string + depends on POWERPC64_CPU + default "-mtune=power10" if $(cc-option,-mtune=power10) + default "-mtune=power9" if $(cc-option,-mtune=power9) + default "-mtune=power8" if $(cc-option,-mtune=power8) + config PPC_BOOK3S def_bool y depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 |