linux-kernel - [PATCH] perf tools: Add missing Intel CPU events to parser

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Date:   Tue, 24 Mar 2020 17:04:43 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] perf tools: Add missing Intel CPU events to parser

perf list expects CPU events to be parseable by name, e.g.

    # perf list | grep el-capacity-read
      el-capacity-read OR cpu/el-capacity-read/          [Kernel PMU event]

But the event parser does not recognize them that way, e.g.

    # perf test -v "Parse event"
    <SNIP>
    running test 54 'cycles//u'
    running test 55 'cycles:k'
    running test 0 'cpu/config=10,config1,config2=3,period=1000/u'
    running test 1 'cpu/config=1,name=krava/u,cpu/config=2/u'
    running test 2 'cpu/config=1,call-graph=fp,time,period=100000/,cpu/config=2,call-graph=no,time=0,period=2000/'
    running test 3 'cpu/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks',period=0x1,event=0x2/ukp'
    -> cpu/event=0,umask=0x11/
    -> cpu/event=0,umask=0x13/
    -> cpu/event=0x54,umask=0x1/
    failed to parse event 'el-capacity-read:u,cpu/event=el-capacity-read/u', err 1, str 'parser error'
    event syntax error: 'el-capacity-read:u,cpu/event=el-capacity-read/u'
                           \___ parser error test child finished with 1
    ---- end ----
    Parse event definition strings: FAILED!

Fix by adding missing Intel CPU events to the event parser.
Missing events were found by using:

    grep -r EVENT_ATTR_STR arch/x86/events/intel/core.c

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/parse-events.l | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 7b1c8ee537cf..a4012613cdcf 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -342,11 +342,25 @@ bpf-output					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUT
 	 * Because the prefix cycles is mixed up with cpu-cycles.
 	 * loads and stores are mixed up with cache event
 	 */
-cycles-ct					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
-cycles-t					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
-mem-loads					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
-mem-stores					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
-topdown-[a-z-]+					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
+cycles-ct				|
+cycles-t				|
+mem-loads				|
+mem-stores				|
+topdown-[a-z-]+				|
+tx-start				|
+tx-commit				|
+tx-abort				|
+tx-capacity				|
+tx-conflict				|
+el-start				|
+el-commit				|
+el-abort				|
+el-capacity				|
+el-conflict				|
+tx-capacity-read			|
+tx-capacity-write			|
+el-capacity-read			|
+el-capacity-write			{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
 
 L1-dcache|l1-d|l1d|L1-data		|
 L1-icache|l1-i|l1i|L1-instruction	|
-- 
2.17.1