Re: [PATCH 3/4] powerpc: Add 64-bit CPU targets for gcc
On Wed, 2012-04-18 at 09:33 -0500, Kumar Gala wrote: On Apr 17, 2012, at 11:45 PM, Anton Blanchard wrote: Add a menu to select various 64-bit CPU targets for gcc. We default to -mtune=power7 and if gcc doesn't understand that we fallback to -mtune=power4. Signed-off-by: Anton Blanchard an...@samba.org --- Can you add a target for e5500 cpu. I'm going to put Anton patch in, can you send an add-on for e5500 ? Cheers, Ben. - k Index: linux-build/arch/powerpc/Makefile === --- linux-build.orig/arch/powerpc/Makefile 2012-04-18 14:31:31.614666419 +1000 +++ linux-build/arch/powerpc/Makefile 2012-04-18 14:37:08.680708678 +1000 @@ -69,6 +69,16 @@ LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=no -mcall-aixdesc CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple + +CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) +CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) +CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) +CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) +CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) +CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) + +CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) + KBUILD_CPPFLAGS += -Iarch/$(ARCH) KBUILD_AFLAGS += -Iarch/$(ARCH) KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) @@ -76,22 +86,11 @@ CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ -ifeq ($(CONFIG_PPC64),y) -ifeq ($(CONFIG_POWER4_ONLY),y) - KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) -else - KBUILD_CFLAGS += $(call cc-option,-mtune=power4) -endif -endif - KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o -ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) -endif - -# No AltiVec instruction when building kernel +# No AltiVec or VSX instructions when building kernel KBUILD_CFLAGS += $(call cc-option,-mno-altivec) +KBUILD_CFLAGS += $(call cc-option,-mno-vsx) # No SPE instruction when building kernel # (We use all available options to help semi-broken compilers) Index: linux-build/arch/powerpc/platforms/Kconfig.cputype === --- linux-build.orig/arch/powerpc/platforms/Kconfig.cputype 2012-04-18 14:31:25.134549903 +1000 +++ linux-build/arch/powerpc/platforms/Kconfig.cputype 2012-04-18 14:36:40.576207829 +1000 @@ -78,6 +78,36 @@ config PPC_BOOK3E_64 endchoice +choice + prompt CPU selection + depends on PPC64 + default GENERIC_CPU + help + This will create a kernel which is optimised for a particular CPU. + The resulting kernel may not run on other CPUs, so use this with care. + + If unsure, select Generic. + +config GENERIC_CPU + bool Generic + +config CELL_CPU + bool Cell Broadband Engine + +config POWER4_CPU + bool POWER4 + +config POWER5_CPU + bool POWER5 + +config POWER6_CPU + bool POWER6 + +config POWER7_CPU + bool POWER7 + +endchoice + config PPC_BOOK3S def_bool y depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
Re: [PATCH 3/4] powerpc: Add 64-bit CPU targets for gcc
On Apr 17, 2012, at 11:45 PM, Anton Blanchard wrote: Add a menu to select various 64-bit CPU targets for gcc. We default to -mtune=power7 and if gcc doesn't understand that we fallback to -mtune=power4. Signed-off-by: Anton Blanchard an...@samba.org --- Can you add a target for e5500 cpu. - k Index: linux-build/arch/powerpc/Makefile === --- linux-build.orig/arch/powerpc/Makefile2012-04-18 14:31:31.614666419 +1000 +++ linux-build/arch/powerpc/Makefile 2012-04-18 14:37:08.680708678 +1000 @@ -69,6 +69,16 @@ LDFLAGS_vmlinux:= $(LDFLAGS_vmlinux-y) CFLAGS-$(CONFIG_PPC64):= -mminimal-toc -mtraceback=no -mcall-aixdesc CFLAGS-$(CONFIG_PPC32):= -ffixed-r2 -mmultiple + +CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) +CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) +CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) +CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) +CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) +CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) + +CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) + KBUILD_CPPFLAGS += -Iarch/$(ARCH) KBUILD_AFLAGS += -Iarch/$(ARCH) KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) @@ -76,22 +86,11 @@ CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS+= -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ -ifeq ($(CONFIG_PPC64),y) -ifeq ($(CONFIG_POWER4_ONLY),y) - KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) -else - KBUILD_CFLAGS += $(call cc-option,-mtune=power4) -endif -endif - KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o -ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) -endif - -# No AltiVec instruction when building kernel +# No AltiVec or VSX instructions when building kernel KBUILD_CFLAGS += $(call cc-option,-mno-altivec) +KBUILD_CFLAGS += $(call cc-option,-mno-vsx) # No SPE instruction when building kernel # (We use all available options to help semi-broken compilers) Index: linux-build/arch/powerpc/platforms/Kconfig.cputype === --- linux-build.orig/arch/powerpc/platforms/Kconfig.cputype 2012-04-18 14:31:25.134549903 +1000 +++ linux-build/arch/powerpc/platforms/Kconfig.cputype2012-04-18 14:36:40.576207829 +1000 @@ -78,6 +78,36 @@ config PPC_BOOK3E_64 endchoice +choice + prompt CPU selection + depends on PPC64 + default GENERIC_CPU + help + This will create a kernel which is optimised for a particular CPU. + The resulting kernel may not run on other CPUs, so use this with care. + + If unsure, select Generic. + +config GENERIC_CPU + bool Generic + +config CELL_CPU + bool Cell Broadband Engine + +config POWER4_CPU + bool POWER4 + +config POWER5_CPU + bool POWER5 + +config POWER6_CPU + bool POWER6 + +config POWER7_CPU + bool POWER7 + +endchoice + config PPC_BOOK3S def_bool y depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
[PATCH 3/4] powerpc: Add 64-bit CPU targets for gcc
Add a menu to select various 64-bit CPU targets for gcc. We default to -mtune=power7 and if gcc doesn't understand that we fallback to -mtune=power4. Signed-off-by: Anton Blanchard an...@samba.org --- Index: linux-build/arch/powerpc/Makefile === --- linux-build.orig/arch/powerpc/Makefile 2012-04-18 14:31:31.614666419 +1000 +++ linux-build/arch/powerpc/Makefile 2012-04-18 14:37:08.680708678 +1000 @@ -69,6 +69,16 @@ LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=no -mcall-aixdesc CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 -mmultiple + +CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4) +CFLAGS-$(CONFIG_CELL_CPU) += $(call cc-option,-mcpu=cell) +CFLAGS-$(CONFIG_POWER4_CPU) += $(call cc-option,-mcpu=power4) +CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5) +CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6) +CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7) + +CFLAGS-$(CONFIG_TUNE_CELL) += $(call cc-option,-mtune=cell) + KBUILD_CPPFLAGS+= -Iarch/$(ARCH) KBUILD_AFLAGS += -Iarch/$(ARCH) KBUILD_CFLAGS += -msoft-float -pipe -Iarch/$(ARCH) $(CFLAGS-y) @@ -76,22 +86,11 @@ CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ -ifeq ($(CONFIG_PPC64),y) -ifeq ($(CONFIG_POWER4_ONLY),y) - KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) -else - KBUILD_CFLAGS += $(call cc-option,-mtune=power4) -endif -endif - KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o -ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) -endif - -# No AltiVec instruction when building kernel +# No AltiVec or VSX instructions when building kernel KBUILD_CFLAGS += $(call cc-option,-mno-altivec) +KBUILD_CFLAGS += $(call cc-option,-mno-vsx) # No SPE instruction when building kernel # (We use all available options to help semi-broken compilers) Index: linux-build/arch/powerpc/platforms/Kconfig.cputype === --- linux-build.orig/arch/powerpc/platforms/Kconfig.cputype 2012-04-18 14:31:25.134549903 +1000 +++ linux-build/arch/powerpc/platforms/Kconfig.cputype 2012-04-18 14:36:40.576207829 +1000 @@ -78,6 +78,36 @@ config PPC_BOOK3E_64 endchoice +choice + prompt CPU selection + depends on PPC64 + default GENERIC_CPU + help + This will create a kernel which is optimised for a particular CPU. + The resulting kernel may not run on other CPUs, so use this with care. + + If unsure, select Generic. + +config GENERIC_CPU + bool Generic + +config CELL_CPU + bool Cell Broadband Engine + +config POWER4_CPU + bool POWER4 + +config POWER5_CPU + bool POWER5 + +config POWER6_CPU + bool POWER6 + +config POWER7_CPU + bool POWER7 + +endchoice + config PPC_BOOK3S def_bool y depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
