1 # SPDX-License-Identifier: GPL-2.0
2 # CPU tuning section - shared with UML.
3 # Must change only cflags-y (or [yn]), not CFL
4
5 tune = $(call cc-option,-mtune=$(1)
6
7 ifdef CONFIG_CC_IS_CLANG
8 align := -falign-functions=0 $(call
9 else
10 align := -falign-functions=0 -falign
11 endif
12
13 cflags-$(CONFIG_M486SX) += -march=i486
14 cflags-$(CONFIG_M486) += -march=i486
15 cflags-$(CONFIG_M586) += -march=i586
16 cflags-$(CONFIG_M586TSC) += -march=i586
17 cflags-$(CONFIG_M586MMX) += -march=pent
18 cflags-$(CONFIG_M686) += -march=i686
19 cflags-$(CONFIG_MPENTIUMII) += -march=i686
20 cflags-$(CONFIG_MPENTIUMIII) += -march=i686
21 cflags-$(CONFIG_MPENTIUMM) += -march=i686
22 cflags-$(CONFIG_MPENTIUM4) += -march=i686
23 cflags-$(CONFIG_MK6) += -march=k6
24 # Please note, that patches that add -march=at
25 # They make zero difference whatsosever to per
26 cflags-$(CONFIG_MK7) += -march=athl
27 cflags-$(CONFIG_MK8) += $(call cc-o
28 cflags-$(CONFIG_MCRUSOE) += -march=i686
29 cflags-$(CONFIG_MEFFICEON) += -march=i686
30 cflags-$(CONFIG_MWINCHIPC6) += $(call cc-o
31 cflags-$(CONFIG_MWINCHIP3D) += $(call cc-o
32 cflags-$(CONFIG_MCYRIXIII) += $(call cc-o
33 cflags-$(CONFIG_MVIAC3_2) += $(call cc-o
34 cflags-$(CONFIG_MVIAC7) += -march=i686
35 cflags-$(CONFIG_MCORE2) += -march=i686
36 cflags-$(CONFIG_MATOM) += $(call cc-o
37 $(call cc-option,-mtune=atom,$(call cc
38
39 # AMD Elan support
40 cflags-$(CONFIG_MELAN) += -march=i486
41
42 # Geode GX1 support
43 cflags-$(CONFIG_MGEODEGX1) += -march=pent
44 cflags-$(CONFIG_MGEODE_LX) += $(call cc-o
45 # add at the end to overwrite eventual tuning
46 # cpu entries
47 cflags-$(CONFIG_X86_GENERIC) += $(call tune
48
49 # Bug fix for binutils: this option is require
50 # binutils from generating NOPL instructions a
51 ifneq ($(CONFIG_X86_P6_NOP),y)
52 cflags-y += $(call cc-o
53 endif
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