This patch finally adds mcpu/mtune options to the Makefile using the previous introduced tuning mechanism.
Subject: [PATCH] include tuning options into Makefile --- arch/powerpc/Makefile | 41 +++++++++++++++++++++++------------------ 1 files changed, 23 insertions(+), 18 deletions(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 9629c5e..09f81a7 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -75,30 +75,35 @@ CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ ifeq ($(CONFIG_PPC64),y) -GCC_BROKEN_VEC := $(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi) -ifeq ($(CONFIG_TUNE_POWER4),y) -ifeq ($(CONFIG_OPT_EXCLUSIVE),y) -ifeq ($(CONFIG_ALTIVEC),y) -ifeq ($(GCC_BROKEN_VEC),y) - KBUILD_CFLAGS += $(call cc-option,-mcpu=970) +ifeq ($(shell if [ $(call cc-version) -lt 0400 ] ; then echo "y"; fi),y) + P4CPU := power4 else - KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) + P4CPU := 970 endif -else - KBUILD_CFLAGS += $(call cc-option,-mcpu=power4) -endif -else - KBUILD_CFLAGS += $(call cc-option,-mtune=power4) -endif - KBUILD_CFLAGS += $(call cc-option,-mtune=power4) + +# optimize for specific cpu +ifeq ($(CONFIG_TUNE_RS64),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=rs64) +else ifeq ($(CONFIG_TUNE_POWER3),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=power3) +else ifeq ($(CONFIG_TUNE_POWER4),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=$(P4CPU)) +else ifeq ($(CONFIG_TUNE_CELL),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=cell,-mtune=cell) +else ifeq ($(CONFIG_TUNE_POWER5),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=power5,-mtune=power5) +else ifeq ($(CONFIG_TUNE_POWER6),y) + KBUILD_CFLAGS += $(call cc-option,-mcpu=power6,-mtune=power6) endif -else -LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o + +ifneq ($(CONFIG_OPT_EXCLUSIVE),y) + KBUILD_CFLAGS := $(subst mcpu,mtune,$(KBUILD_CFLAGS)) endif -ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) +else +# !PPC64 + LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o endif # No AltiVec instruction when building kernel -- 1.5.6.2 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev