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authorAndi Kleen <ak@suse.de>2006-12-07 02:14:09 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:09 +0100
commit713819989aa4dd141a37074dbc369e7c620bc619 (patch)
tree31a9166ffb2f767fbe1b20cd294dbffe74e0d675 /arch/x86_64/Makefile
parent8542b200cbe5609edd7aae0c304c091a1c290452 (diff)
[PATCH] x86-64: Add option to compile for Core2
Add an option to compile for Intel's Core 2 The Kconfig help is a mouthful due to the inventiveness of Intel's product naming department. Mainly for the 64bit cache line sizes because gcc doesn't support optimizing for core2 yet. However it will and then the kernel should be ready by passing the right option Also fix the old MPSC help text to confirm better to reality. Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/Makefile')
-rw-r--r--arch/x86_64/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 6e38d4daeed..b471b8550d0 100644
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -30,6 +30,10 @@ cflags-y :=
cflags-kernel-y :=
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
+# gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it
+# will eventually. Use -mtune=generic as fallback
+cflags-$(CONFIG_MCORE2) += \
+ $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
cflags-y += -m64