Openwrt/target/linux/generic/pending-5.10/308-mips32r2_tune.patch
Rui Salvaterra 3a187fa718 kernel: bump 5.10 to 5.10.20
Also add a new kconfig symbol (CONFIG_KCMP) to the generic config,
disabling the SYS_kcmp syscall (it was split from
CONFIG_CHECKPOINT_RESTORE, which is disabled by default, so the
previous behaviour is kept).

Removed (upstreamed) patches:
  070-net-icmp-pass-zeroed-opts-from-icmp-v6-_ndo_send-bef.patch
  081-wireguard-device-do-not-generate-ICMP-for-non-IP-pac.patch
  082-wireguard-queueing-get-rid-of-per-peer-ring-buffers.patch
  083-wireguard-kconfig-use-arm-chacha-even-with-no-neon.patch
  830-v5.12-0002-usb-serial-option-update-interface-mapping-for-ZTE-P685M.patch

Manually rebased patches:
  313-helios4-dts-status-led-alias.patch
  104-powerpc-mpc85xx-change-P2020RDB-dts-file-for-OpenWRT.patch

Run tested:
  ath79 (TL-WDR3600)
  mvebu (Turris Omnia)

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
2021-03-05 20:35:01 +01:00

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Diff

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
@@ -174,7 +174,7 @@ 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