Commit b13812dd authored Sep 23, 2020 by Jiaxun Yang Committed by Thomas Bogendoerfer Sep 23, 2020

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: 71e2f4dd ("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>

parent 01ce6d4d

arch/mips/loongson2ef/Platform

+4 −0

Original line number	Diff line number	Diff line
		@@ -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
		#

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