kernel: generic: Add kernel 4.14 support
[openwrt/openwrt.git] / target / linux / generic / pending-4.14 / 308-mips32r2_tune.patch
1 From: Felix Fietkau <nbd@nbd.name>
2 Subject: kernel: add -mtune=34kc to MIPS CFLAGS when building for mips32r2
3
4 This provides a good tradeoff across at least 24Kc-74Kc, while also
5 producing smaller code.
6
7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
8 ---
9 arch/mips/Makefile | 2 +-
10 1 file changed, 1 insertion(+), 1 deletion(-)
11
12 --- a/arch/mips/Makefile
13 +++ b/arch/mips/Makefile
14 @@ -162,7 +162,7 @@ cflags-$(CONFIG_CPU_R4X00) += -march=r46
15 cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
16 cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
17 -Wa,-mips32 -Wa,--trap
18 -cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
19 +cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2 -mtune=34kc,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
20 -Wa,-mips32r2 -Wa,--trap
21 cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
22 cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \