Kajol Jain e5f9d88586 powerpc/perf/hv-24x7: Dont create sysfs event files for dummy events ... The hv_24x7 performance monitoring unit creates a list of supported events from the event catalog obtained via HCALL. The hv_24x7 catalog could also contain invalid or dummy events with names like RESERVED*. These events do not have any hardware counters backing them. Add a check to string compare the event names to filter such events out. Result on power9 machine: Before this patch: ..... hv_24x7/PM_XLINK2_OUT_ODD_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_DATA_COUNT,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_TOTAL_UTIL,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT_MISS,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_SENT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_TLBI_RCV,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST1,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST10,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST11,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST12,chip=?/ [Kernel PMU event] hv_24x7/RESERVED_NEST13,chip=?/ [Kernel PMU event] ...... dmesg: [ 0.000362] printk: console [hvc0] enabled [ 0.815452] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs After this patch: ...... hv_24x7/PM_XLINK2_OUT_ODD_AVLBL_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_CYC,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_DATA_COUNT,chip=?/ [Kernel PMU event] hv_24x7/PM_XLINK2_OUT_ODD_TOTAL_UTIL,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATR_DEMAND_CHECKOUT_MISS,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_SENT,chip=?/ [Kernel PMU event] hv_24x7/PM_XTS_ATSD_TLBI_RCV,chip=?/ [Kernel PMU event] hv_24x7/TOD,chip=?/ [Kernel PMU event] ...... dmesg: [ 0.000357] printk: console [hvc0] enabled [ 0.808592] hv-24x7: read 1530 catalog entries, created 509 event attrs (0 failures), 275 descs Signed-off-by: Kajol Jain <kjain@linux.ibm.com> [mpe: Simplify ignore_event(), minor change log formatting] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201228085204.18026-1-kjain@linux.ibm.com		2021-01-30 11:39:25 +11:00
..
boot	powerpc/boot: Fix build of dts/fsl	2020-12-21 22:06:09 +11:00
configs	powerpc updates for 5.11	2020-12-17 13:34:25 -08:00
crypto	crypto: powerpc/sha256-spe - Fix sparse endianness warning	2020-11-27 17:13:41 +11:00
include	powerpc/64s/kuap: Use mmu_has_feature()	2021-01-30 11:39:25 +11:00
kernel	powerpc fixes for 5.11 #2	2020-12-24 14:02:00 -08:00
kexec	arch, drivers: replace for_each_membock() with for_each_mem_range()	2020-10-13 18:38:35 -07:00
kvm	powerpc updates for 5.11	2020-12-17 13:34:25 -08:00
lib	powerpc/sstep: Add testcases for VSX vector paired load/store instructions	2020-12-11 00:09:10 +11:00
math-emu
mm	powerpc updates for 5.11	2020-12-17 13:34:25 -08:00
net	bpf, powerpc: Fix misuse of fallthrough in bpf_jit_comp()	2020-09-29 16:39:11 +02:00
oprofile	powerpc/oprofile: fix spelling mistake "contex" -> "context"	2020-08-25 01:31:33 +10:00
perf	powerpc/perf/hv-24x7: Dont create sysfs event files for dummy events	2021-01-30 11:39:25 +11:00
platforms	dma-mapping updates for 5.11:	2020-12-22 13:19:43 -08:00
purgatory	powerpc/kexec_file: Enable early kernel OPAL calls	2020-07-29 23:47:55 +10:00
sysdev	powerpc/xive: Improve error reporting of OPAL calls	2020-12-11 09:53:11 +11:00
tools	powerpc/tools: Remove 90 line limit in checkpatch script	2020-09-08 22:57:11 +10:00
xmon	powerpc/xmon: Change printk() to pr_cont()	2020-12-04 21:56:30 +11:00
Kbuild
Kconfig	dma-mapping updates for 5.11:	2020-12-22 13:19:43 -08:00
Kconfig.debug	powerpc: Remove Xilinx PPC405/PPC440 support	2020-05-28 23:24:34 +10:00
Makefile	powerpc updates for 5.11	2020-12-17 13:34:25 -08:00
Makefile.postlink	powerpc: unrel_branch_check.sh: use nm to find symbol value	2020-09-02 11:00:22 +10:00