Commit | Line | Data |
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96d55b88 PBG |
1 | # CPU tuning section - shared with UML. |
2 | # Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML. | |
3 | ||
4 | align := $(cc-option-align) | |
5 | cflags-$(CONFIG_M386) += -march=i386 | |
6 | cflags-$(CONFIG_M486) += -march=i486 | |
7 | cflags-$(CONFIG_M586) += -march=i586 | |
8 | cflags-$(CONFIG_M586TSC) += -march=i586 | |
9 | cflags-$(CONFIG_M586MMX) += $(call cc-option,-march=pentium-mmx,-march=i586) | |
10 | cflags-$(CONFIG_M686) += -march=i686 | |
11 | cflags-$(CONFIG_MPENTIUMII) += -march=i686 $(call cc-option,-mtune=pentium2) | |
12 | cflags-$(CONFIG_MPENTIUMIII) += -march=i686 $(call cc-option,-mtune=pentium3) | |
13 | cflags-$(CONFIG_MPENTIUMM) += -march=i686 $(call cc-option,-mtune=pentium3) | |
14 | cflags-$(CONFIG_MPENTIUM4) += -march=i686 $(call cc-option,-mtune=pentium4) | |
15 | cflags-$(CONFIG_MK6) += -march=k6 | |
16 | # Please note, that patches that add -march=athlon-xp and friends are pointless. | |
17 | # They make zero difference whatsosever to performance at this time. | |
18 | cflags-$(CONFIG_MK7) += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4) | |
19 | cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)) | |
20 | cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 | |
21 | cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 | |
22 | cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586) | |
23 | cflags-$(CONFIG_MWINCHIP2) += $(call cc-option,-march=winchip2,-march=i586) | |
24 | cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586) | |
25 | cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0 | |
26 | cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686) | |
27 | ||
28 | # AMD Elan support | |
29 | cflags-$(CONFIG_X86_ELAN) += -march=i486 | |
30 | ||
31 | # Geode GX1 support | |
32 | cflags-$(CONFIG_MGEODEGX1) += $(call cc-option,-march=pentium-mmx,-march=i486) | |
33 |