diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2020-09-23 12:33:12 +0200 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-09-23 14:47:22 +0200 |
| commit | b13812ddea615b6507beef24f76540c0c1143c5c (patch) | |
| tree | df643c94a1926651b5c7ec9f8c91fc74aee280a9 /arch | |
| parent | MIPS: Loongson-3: Fix fp register access if MSA enabled (diff) | |
| download | linux-b13812ddea615b6507beef24f76540c0c1143c5c.tar.xz linux-b13812ddea615b6507beef24f76540c0c1143c5c.zip | |
MIPS: Loongson2ef: Disable Loongson MMI instructions
It was missed when I was forking Loongson2ef from Loongson64 but
should be applied to Loongson2ef as march=loongson2f
will also enable Loongson MMI in GCC-9+.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Fixes: 71e2f4dd5a65 ("MIPS: Fork loongson2ef from loongson64")
Reported-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: stable@vger.kernel.org # v5.8+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/loongson2ef/Platform | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/loongson2ef/Platform b/arch/mips/loongson2ef/Platform index 4ab55f1123a0..ae023b9a1c51 100644 --- a/arch/mips/loongson2ef/Platform +++ b/arch/mips/loongson2ef/Platform @@ -44,6 +44,10 @@ ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS endif endif +# Some -march= flags enable MMI instructions, and GCC complains about that +# support being enabled alongside -msoft-float. Thus explicitly disable MMI. +cflags-y += $(call cc-option,-mno-loongson-mmi) + # # Loongson Machines' Support # |