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| author | Aleksandar Markovic <aleksandar.markovic@imgtec.com> | 2017-08-21 14:24:50 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-29 15:21:57 +0200 |
| commit | ae5f3f5b81dd2c776f0ad49d6d121ce1255b35eb (patch) | |
| tree | b7b210f0cf26f11b7ae7a165d7d0c0e1ea2b069d /arch/mips/math-emu | |
| parent | e1231dd6b1cfbed9dfda5de488ce23c2414e1f04 (diff) | |
| download | lwn-ae5f3f5b81dd2c776f0ad49d6d121ce1255b35eb.tar.gz lwn-ae5f3f5b81dd2c776f0ad49d6d121ce1255b35eb.zip | |
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>
Diffstat (limited to 'arch/mips/math-emu')
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 1 | ||||
| -rw-r--r-- | arch/mips/math-emu/me-debugfs.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index a4df2200c725..a1f06ad01759 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -1230,6 +1230,7 @@ emul: break; } branch_common: + MIPS_FPU_EMU_INC_STATS(branches); set_delay_slot(xcp); if (cond) { /* diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c index be650ed7db59..78b26c8dc697 100644 --- a/arch/mips/math-emu/me-debugfs.c +++ b/arch/mips/math-emu/me-debugfs.c @@ -53,6 +53,7 @@ do { \ FPU_STAT_CREATE(emulated); FPU_STAT_CREATE(loads); FPU_STAT_CREATE(stores); + FPU_STAT_CREATE(branches); FPU_STAT_CREATE(cp1ops); FPU_STAT_CREATE(cp1xops); FPU_STAT_CREATE(errors); |