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

..

common

mips: Loongson: Fix the link time qualifier of 'serial_exit()'

2019-10-02 14:16:32 -07:00

fuloong-2e

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

2019-05-30 11:26:32 -07:00

lemote-2f

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

2019-05-30 11:26:32 -07:00

loongson-3

MIPS: Loongson64: Fix boot failure after dropping boot_mem_map

2019-09-30 15:18:22 -07:00

Kconfig

PCI: consolidate PCI config entry in drivers/pci

2018-11-23 11:45:34 +09:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

Platform

MIPS: Disable Loongson MMI instructions for kernel build

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