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- From: Felix Fietkau <nbd@nbd.name>
- Subject: kernel: add -mtune=34kc to MIPS CFLAGS when building for mips32r2
- This provides a good tradeoff across at least 24Kc-74Kc, while also
- producing smaller code.
- Signed-off-by: Felix Fietkau <nbd@nbd.name>
- ---
- arch/mips/Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
- --- a/arch/mips/Makefile
- +++ b/arch/mips/Makefile
- @@ -153,7 +153,7 @@ cflags-$(CONFIG_CPU_R4X00) += -march=r46
- cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
- cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
- -Wa,-mips32 -Wa,--trap
- -cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
- +cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2 -mtune=34kc,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
- -Wa,-mips32r2 -Wa,--trap
- cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap
- cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
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