MIPS: math-emu: Add FP emu debugfs statistics for branches
authorAleksandar Markovic <aleksandar.markovic@imgtec.com>
Mon, 21 Aug 2017 12:24:50 +0000 (14:24 +0200)
committerRalf Baechle <ralf@linux-mips.org>
Tue, 29 Aug 2017 13:21:57 +0000 (15:21 +0200)
commitae5f3f5b81dd2c776f0ad49d6d121ce1255b35eb
treeb7b210f0cf26f11b7ae7a165d7d0c0e1ea2b069d
parente1231dd6b1cfbed9dfda5de488ce23c2414e1f04
MIPS: math-emu: Add FP emu debugfs statistics for branches

Add FP emu debugfs counter for branches.

The new counter is displayed the same way as existing counter, and
its default path is /sys/kernel/debug/mips/fpuemustats/.

The limitation of this counter is that it counts only R6 branch
instructions BC1NEZ and BC1EQZ.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Cc: Douglas Leung <douglas.leung@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Petar Jovanovic <petar.jovanovic@imgtec.com>
Cc: Raghu Gandham <raghu.gandham@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17143/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/include/asm/fpu_emulator.h
arch/mips/math-emu/cp1emu.c
arch/mips/math-emu/me-debugfs.c