From: sashiko-bot@kernel.org
To: "Justus Bergermann" <mail@justus-bergermann.de>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: [PATCH] perf vendor events riscv: Add PMU events JSON file for T-Head C908
Date: Mon, 05 Oct 2026 16:19:40 +0000 [thread overview]
Message-ID: <20261005161940.8124F1F0089A@smtp.kernel.org> (raw)
In-Reply-To: <20261005-c908-pmu-events-v1-1-cfab33201c59@justus-bergermann.de>
> The XuanTie C908 cannot use the existing thead/c900-legacy event file:
> The c900-legacy mapfile entry is 0x5b7-0x0-0x0, which works because the
> c906 and c910 leave marchid and mimpid unimplemented, so both read
> as zero. The C908 implements them: a Kendryte K230 with the c908 reports
> mvendorid 0x5b7, marchid 0x8000000009140d00 and mimpid 0x50000. No entry
> matches, so perf currently resolves no vendor event names at all on this
> core.
>
> Add a thead/c908 directory describing the 165 raw events defined in
> Table 14.6 of the XuanTie C908 user manual, codes 0x01 to 0xb4, and a
> mapfile entry for the core.
>
> Signed-off-by: Justus Bergermann <mail@justus-bergermann.de>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261005-c908-pmu-events-v1-1-cfab33201c59@justus-bergermann.de?part=1
prev parent reply other threads:[~2026-10-05 16:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-05 16:15 [PATCH] perf vendor events riscv: Add PMU events JSON file for T-Head C908 Justus Bergermann
2026-10-05 16:15 ` Justus Bergermann
2026-10-05 16:19 ` sashiko-bot [this message]
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