diff options
| author | Aleksandar Markovic <aleksandar.markovic@imgtec.com> | 2017-08-21 14:24:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2018-02-05 08:58:33 -0800 |
| commit | b4c0bacf7fb7225df9ed6cc3ef27cf0d5bfed025 (patch) | |
| tree | 7b67aeaa4cd13737b4adb0e7751995c4c5752ad5 | |
| parent | 49ab66eb1e5724a238d307a167712f09b43590bd (diff) | |
UPSTREAM: 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>
(cherry picked from commit ae5f3f5b81dd2c776f0ad49d6d121ce1255b35eb)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
| -rw-r--r-- | arch/mips/include/asm/fpu_emulator.h | 1 | ||||
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 1 | ||||
| -rw-r--r-- | arch/mips/math-emu/me-debugfs.c | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h index c05369e0b8d6..7f5cf1f4bcbd 100644 --- a/arch/mips/include/asm/fpu_emulator.h +++ b/arch/mips/include/asm/fpu_emulator.h @@ -36,6 +36,7 @@ struct mips_fpu_emulator_stats { unsigned long emulated; unsigned long loads; unsigned long stores; + unsigned long branches; unsigned long cp1ops; unsigned long cp1xops; unsigned long errors; diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 6ad7bd871508..008372d19a6a 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -1231,6 +1231,7 @@ 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); |