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| author | Andi Kleen <ak@suse.de> | 2006-03-25 16:29:06 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-25 09:10:52 -0800 |
| commit | dca99a38bccceda9e079d4c95abefbd9028605fe (patch) | |
| tree | 1b583ae41d7b042e0249bb0b746c49fa6f09a4e8 /arch/x86_64/Makefile | |
| parent | c7ea1a96ec007ba761c9d5d11d788cd8fdd5c8b6 (diff) | |
| download | lwn-dca99a38bccceda9e079d4c95abefbd9028605fe.tar.gz lwn-dca99a38bccceda9e079d4c95abefbd9028605fe.zip | |
[PATCH] x86-64: Use -mtune=generic for generic kernels
The upcomming gcc 4.2 got a new option -mtune=generic to tune
code for both common AMD and Intel CPUs. Use this option
when available for generic kernels.
On x86-64 it is used with CONFIG_GENERIC_CPU. On i386 it is
enabled with CONFIG_X86_GENERIC. It won't affect the base
line CPU support in any ways and also not the minimum supported CPU.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/Makefile')
| -rw-r--r-- | arch/x86_64/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 7405dfd6522b..f5e48ba9bec7 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -29,6 +29,7 @@ CHECKFLAGS += -D__x86_64__ -m64 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona) +cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic) CFLAGS += $(cflags-y) CFLAGS += -m64 |