[PATCH v6 1/7] perf pmu: "Compat" supports matching multiple identifiers

[John Garry]

On 07/08/2023 08:51, Jing Zhang wrote:
> The jevent "Compat" is used for uncore PMU alias or metric definitions.
> 
> The same PMU driver has different PMU identifiers due to different
> hardware versions and types, but they may have some common PMU event.
> Since a Compat value can only match one identifier, when adding the
> same event alias to PMUs with different identifiers, each identifier
> needs to be defined once, which is not streamlined enough.
> 
> So let "Compat" supports matching multiple identifiers for uncore PMU
> alias. For example, the Compat value {43401;436*} can match the PMU
> identifier "43401", that is, CMN600_r0p0, and the PMU identifier with
> the prefix "436", that is, all CMN650, where "*" is a wildcard.
> Tokens in Unit field are delimited by ';' with no spaces.
> 
> Signed-off-by: Jing Zhang<renyu.zj at linux.alibaba.com>
> ---

Reviewed-by: John Garry <john.g.garry at oracle.com>