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Paul Burton 2f2b4fd674 MIPS: Disable Loongson MMI instructions for kernel build

GCC 9.x automatically enables support for Loongson MMI instructions when
using some -march= flags, and then errors out when -msoft-float is
specified with:

  cc1: error: ‘-mloongson-mmi’ must be used with ‘-mhard-float’

The kernel shouldn't be using these MMI instructions anyway, just as it
doesn't use floating point instructions. Explicitly disable them in
order to fix the build with GCC 9.x.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 3702bba5eb ("MIPS: Loongson: Add GCC 4.4 support for Loongson2E")
Fixes: 6f7a251a25 ("MIPS: Loongson: Add basic Loongson 2F support")
Fixes: 5188129b8c ("MIPS: Loongson-3: Improve -march option and move it to Platform")
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: stable@vger.kernel.org # v2.6.32+
Cc: linux-mips@vger.kernel.org

2019-10-10 11:58:52 -07:00

.gitignore

MIPS: Initial implementation of a VDSO

2015-11-11 08:36:36 +01:00

config-n32-o32-env.c

mips: compat: vdso: Use legacy syscalls as fallback

2019-09-03 15:35:23 +01:00

elf.S

mips: Add support for generic vDSO

2019-07-25 21:45:05 -07:00

genvdso.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152