Re: [PATCH v5 10/11] alpha/perf: add ProfileMe sample filters

[sashiko-bot@kernel.org]

> ProfileMe samples any fetched instruction, including those killed on a
> wrong path, and what happened to it is only in the PERF_SAMPLE_RAW data.
> 
> Add three config1 bits that keep only the samples of instructions that:
> 
>   retired     retired. VAL says so for an instruction that did not trap,
>               and the trap type for one that did.
>   mispredict  were mispredicted conditional branches.
>   trapped     trapped, mispredicts included, or caused an ITB miss,
>               Istream access violation or interrupt redirect.
> 
> A sample must match every bit that is set, as with Arm SPE's
> event_filter. The driver drops the samples that do not, and they still
> count as interrupts for throttling and frequency mode.
> 
> Suggested-by: Ian Rogers <irogers@google.com>
> Assisted-by: Claude:claude-opus-5-5
> Signed-off-by: Matt Turner <mattst88@gmail.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261103-alpha-profileme-v5-0-bbe3937fbf3a@gmail.com?part=10