MIPS: Loongson-3: Improve -march option and move it to Platform

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If GCC >= 4.9 and Binutils >=2.25, we use -march=loongson3a, otherwise
we use -march=mips64r2, this can slightly improve performance. Besides,
arch/mips/loongson64/Platform is a better location rather than arch/
mips/Makefile.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12161/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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Huacai Chen 2016-01-21 21:09:48 +08:00 • committed by Ralf Baechle

parent 6e52684467

commit 5188129b8c

2 changed files with 21 additions and 10 deletions

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10

arch/mips/Makefile

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21

arch/mips/loongson64/Platform

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