Re: [PATCH v2 1/3] perf vendor events arm64: Fill up Desc field for Hisi hip08 hha pmu

From: Jonathan Cameron
Date: Fri Apr 25 2025 - 07:07:14 EST


On Fri, 18 Apr 2025 15:08:10 +0800
Junhao He <hejunhao3@xxxxxxxxxx> wrote:

> In the same PMU, when some JSON events have the "BriefDescription" field
> populated while others do not, the cmp_sevent() function will split these
> two types of events into separate groups. As a result, when using perf
> list to display events, the two types of events cannot be grouped together
> in the output.
>
> before patch:
> $ perf list pmu
> ...
> uncore hha:
> hisi_sccl1_hha2/sdir-hit/
> hisi_sccl1_hha2/sdir-lookup/
> ...
> uncore hha:
> edir-hit
> [Count of The number of HHA E-Dir hit operations. Unit: hisi_sccl1_hha2]
> ...
>
> after patch:
> $ perf list pmu
> ...
> uncore hha:
> edir-hit
> [Count of The number of HHA E-Dir hit operations. Unit: hisi_sccl1_hha2]
> sdir-hit
> [Count of The number of HHA S-Dir hit operations. Unit: hisi_sccl1_hha2]
> sdir-lookup
> [Count of the number of HHA S-Dir lookup operations. Unit: hisi_sccl1_hha2]
> ...
>
> Signed-off-by: Junhao He <hejunhao3@xxxxxxxxxx>
> Reviewed-by: James Clark <james.clark@xxxxxxxxxx>
One trivial comment inline that might be good to tidy up.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>

> {
> "ConfigCode": "0x38",
> "EventName": "rx_snprspdata",
> + "BriefDescription": "Count of the number of SnprspData flit operations that HHA has received",

Not SnpRspData? For Snoop Response Data flit ?


> "Unit": "hisi_sccl,hha"
> },
> {
> "ConfigCode": "0x3c",
> "EventName": "rx_snprsp_outer",
> + "BriefDescription": "Count of the number of SnprspData operations that HHA has received from another socket",

Similar on the capitalization.

> "Unit": "hisi_sccl,hha"
> },