aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/pending-5.10/308-mips32r2_tune.patch
blob: 54c0e01023855867724937e88f238c1f47638213 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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
@@ -155,7 +155,7 @@ cflags-$(CONFIG_CPU_VR41XX)	+= -march=r4
 cflags-$(CONFIG_CPU_R4X00)	+= -march=r4600 -Wa,--trap
 cflags-$(CONFIG_CPU_TX49XX)	+= -march=r4600 -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS32_R1)	+= -march=mips32 -Wa,--trap
-cflags-$(CONFIG_CPU_MIPS32_R2)	+= -march=mips32r2 -Wa,--trap
+cflags-$(CONFIG_CPU_MIPS32_R2)	+= -march=mips32r2 -mtune=34kc -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS32_R5)	+= -march=mips32r5 -Wa,--trap -modd-spreg
 cflags-$(CONFIG_CPU_MIPS32_R6)	+= -march=mips32r6 -Wa,--trap -modd-spreg
 cflags-$(CONFIG_CPU_MIPS64_R1)	+= -march=mips64 -Wa,--trap