tree a74a55f775366665562b9cddcd39d34163af3229
parent 96a8123e5f965825a61a74617b8da1199646d392
author Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> 1401391605 -0700
committer Ralf Baechle <ralf@linux-mips.org> 1401443723 +0200

MIPS: math-emu: Add IEEE754 exception statistics to debugfs

Sometimes it's useful to let the user, while doing performance research,
know what in the IEEE754 exceptions has caused many times of FP emulation
when running a specific application. This patch adds 5 more files to
/sys/kernel/debug/mips/fpuemustats/, whose filenames begin with "ieee754".
These stats are in addition to the existing cp1ops, cp1xops, errors, loads
and stores, which may not be useful in understanding the reasons of ieee754
exceptions.

[ralf@linux-mips.org: Fixed reject due to other changes to the kernel
FP assist software.]

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven.Hill@imgtec.com
Cc: james.hogan@imgtec.com
Patchwork: http://patchwork.linux-mips.org/patch/7044/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>