| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 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 | @@ -177,7 +177,7 @@ cflags-$(CONFIG_CPU_VR41XX) += -march=r4 |
| 15 | cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap |
| 16 | cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap |
| 17 | cflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,--trap |
| 18 | -cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,--trap |
| 19 | +cflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -mtune=34kc -Wa,--trap |
| 20 | cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg |
| 21 | cflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,--trap |
| 22 | cflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,--trap |