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23 lines
953 B
Diff
23 lines
953 B
Diff
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From: Felix Fietkau <nbd@nbd.name>
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Subject: kernel: add -mtune=34kc to MIPS CFLAGS when building for mips32r2
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This provides a good tradeoff across at least 24Kc-74Kc, while also
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producing smaller code.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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arch/mips/Makefile | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/mips/Makefile
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+++ b/arch/mips/Makefile
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@@ -155,7 +155,7 @@ cflags-$(CONFIG_CPU_VR41XX) += -march=r4
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cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
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cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
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cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap
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-cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap
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+cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -mtune=34kc -Wa,--trap
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cflags-$(CONFIG_CPU_MIPS32_R5) += -march=mips32r5 -Wa,--trap -modd-spreg
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cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
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cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap
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