From: Jiaxun Yang <[email protected]> commit b13812ddea615b6507beef24f76540c0c1143c5c upstream.
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 <[email protected]> Fixes: 71e2f4dd5a65 ("MIPS: Fork loongson2ef from loongson64") Reported-by: Thomas Bogendoerfer <[email protected]> Cc: [email protected] # v5.8+ Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- arch/mips/loongson2ef/Platform | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/mips/loongson2ef/Platform +++ b/arch/mips/loongson2ef/Platform @@ -22,6 +22,10 @@ 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 #
