[PATCH] perf/list: Fix s390 counter long description for L1D_RO_EXCL_WRITES

From: Thomas Richter
Date: Fri Mar 29 2019 - 09:34:01 EST


Command
# ./perf list --long-desc pmu
lists the long description of the available counters. For counter
named L1D_RO_EXCL_WRITES on machine types 3906 and 3907 the long
description contains the counter number 'Counter:128 Name:'
prefix. This is wrong.

The fix changes the description text and removes this prefix.

Output before:

[root@m35lp76 perf]# ./perf list --long-desc pmu
...
L1D_ONDRAWER_L4_SOURCED_WRITES
[A directory write to the Level-1 Data cache directory where the
returned cache line was sourced from On-Drawer Level-4 cache]

L1D_RO_EXCL_WRITES
[Counter:128 Name:L1D_RO_EXCL_WRITES A directory write to the Level-1
Data cache where the line was originally in a Read-Only state in the
cache but has been updated to be in the Exclusive state that allows
stores to the cache line]

...

Output after:

[root@m35lp76 perf]# ./perf list --long-desc pmu
...
L1D_ONDRAWER_L4_SOURCED_WRITES
[A directory write to the Level-1 Data cache directory where the
returned cache line was sourced from On-Drawer Level-4 cache]

L1D_RO_EXCL_WRITES
[L1D_RO_EXCL_WRITES A directory write to the Level-1
Data cache where the line was originally in a Read-Only state in the
cache but has been updated to be in the Exclusive state that allows
stores to the cache line]

...

Fixes: 109d59b900e7 ("perf vendor events s390: Add JSON files for IBM z14")
Signed-off-by: Thomas Richter <tmricht@xxxxxxxxxxxxx>
---
tools/perf/pmu-events/arch/s390/cf_z14/extended.json | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/pmu-events/arch/s390/cf_z14/extended.json b/tools/perf/pmu-events/arch/s390/cf_z14/extended.json
index e7a3524b748f..68618152ea2c 100644
--- a/tools/perf/pmu-events/arch/s390/cf_z14/extended.json
+++ b/tools/perf/pmu-events/arch/s390/cf_z14/extended.json
@@ -4,7 +4,7 @@
"EventCode": "128",
"EventName": "L1D_RO_EXCL_WRITES",
"BriefDescription": "L1D Read-only Exclusive Writes",
- "PublicDescription": "Counter:128 Name:L1D_RO_EXCL_WRITES A directory write to the Level-1 Data cache where the line was originally in a Read-Only state in the cache but has been updated to be in the Exclusive state that allows stores to the cache line"
+ "PublicDescription": "L1D_RO_EXCL_WRITES A directory write to the Level-1 Data cache where the line was originally in a Read-Only state in the cache but has been updated to be in the Exclusive state that allows stores to the cache line"
},
{
"Unit": "CPU-M-CF",
--
2.19.1