diff options
| author | Andi Kleen <ak@suse.de> | 2006-12-07 02:14:09 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:09 +0100 |
| commit | 713819989aa4dd141a37074dbc369e7c620bc619 (patch) | |
| tree | 31a9166ffb2f767fbe1b20cd294dbffe74e0d675 /arch/x86_64/Makefile | |
| parent | 8542b200cbe5609edd7aae0c304c091a1c290452 (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/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 6e38d4daeed7..b471b8550d03 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 |