* [PATCH] perf: xgene: Fix IOB SLOW PMU parser error
@ 2018-06-06 21:06 Hoan Tran
2018-06-07 16:02 ` Will Deacon
0 siblings, 1 reply; 2+ messages in thread
From: Hoan Tran @ 2018-06-06 21:06 UTC (permalink / raw)
To: linux-arm-kernel
This patch fixes the below parser error of the IOB SLOW PMU.
# perf stat -a -e iob-slow0/cycle-count/ sleep 1
evenf syntax error: 'iob-slow0/cycle-count/'
\___ parser error
It replaces the "-" character by "_" character inside the PMU name.
Signed-off-by: Hoan Tran <hoan.tran@amperecomputing•com>
---
drivers/perf/xgene_pmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 6bdb1da..0e31f13 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1463,7 +1463,7 @@ static char *xgene_pmu_dev_name(struct device *dev, u32 type, int id)
case PMU_TYPE_IOB:
return devm_kasprintf(dev, GFP_KERNEL, "iob%d", id);
case PMU_TYPE_IOB_SLOW:
- return devm_kasprintf(dev, GFP_KERNEL, "iob-slow%d", id);
+ return devm_kasprintf(dev, GFP_KERNEL, "iob_slow%d", id);
case PMU_TYPE_MCB:
return devm_kasprintf(dev, GFP_KERNEL, "mcb%d", id);
case PMU_TYPE_MC:
--
2.7.4
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] perf: xgene: Fix IOB SLOW PMU parser error
2018-06-06 21:06 [PATCH] perf: xgene: Fix IOB SLOW PMU parser error Hoan Tran
@ 2018-06-07 16:02 ` Will Deacon
0 siblings, 0 replies; 2+ messages in thread
From: Will Deacon @ 2018-06-07 16:02 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Jun 06, 2018 at 02:06:54PM -0700, Hoan Tran wrote:
> This patch fixes the below parser error of the IOB SLOW PMU.
>
> # perf stat -a -e iob-slow0/cycle-count/ sleep 1
> evenf syntax error: 'iob-slow0/cycle-count/'
> \___ parser error
>
> It replaces the "-" character by "_" character inside the PMU name.
>
> Signed-off-by: Hoan Tran <hoan.tran@amperecomputing•com>
Hmm, why did you only notice this now? :(
Anyway, whilst this could in theory break something, we did this for the CPU
PMUs in the past without issues so I'll pick this up.
Cheers,
Will
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