mirror of https://gitee.com/openkylin/linux.git
454854ace2
Add FP emulation debugfs statistics for individual instructions. The debugfs files that contain counter values are placed in a separate directory called "instructions". This means that the default path for these new stat is "/sys/kernel/debug/mips/fpuemustats/instructions". Each instruction counter is mapped to the debugfs file that has the same name as instruction name. The lowercase is choosen as more commonly used case for instruction names. One example of usage: mips_host::/sys/kernel/debug/mips/fpuemustats/instructions # grep "" * The shortened output of this command is: abs.d:34 abs.s:5711 add.d:10401 add.s:399307 bc1eqz:3199 ... ... ... sub.s:167211 trunc.l.d:375 trunc.l.s:8054 trunc.w.d:421 trunc.w.s:27032 The limitation of this patch is that it handles R6 FP emulation instructions only. There are altogether 114 handled instructions. 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/17145/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
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| .. | ||
| Makefile | ||
| cp1emu.c | ||
| dp_2008class.c | ||
| dp_add.c | ||
| dp_cmp.c | ||
| dp_div.c | ||
| dp_fint.c | ||
| dp_flong.c | ||
| dp_fmax.c | ||
| dp_fmin.c | ||
| dp_fsp.c | ||
| dp_maddf.c | ||
| dp_mul.c | ||
| dp_rint.c | ||
| dp_simple.c | ||
| dp_sqrt.c | ||
| dp_sub.c | ||
| dp_tint.c | ||
| dp_tlong.c | ||
| dsemul.c | ||
| ieee754.c | ||
| ieee754.h | ||
| ieee754d.c | ||
| ieee754dp.c | ||
| ieee754dp.h | ||
| ieee754int.h | ||
| ieee754sp.c | ||
| ieee754sp.h | ||
| me-debugfs.c | ||
| sp_2008class.c | ||
| sp_add.c | ||
| sp_cmp.c | ||
| sp_div.c | ||
| sp_fdp.c | ||
| sp_fint.c | ||
| sp_flong.c | ||
| sp_fmax.c | ||
| sp_fmin.c | ||
| sp_maddf.c | ||
| sp_mul.c | ||
| sp_rint.c | ||
| sp_simple.c | ||
| sp_sqrt.c | ||
| sp_sub.c | ||
| sp_tint.c | ||
| sp_tlong.c | ||