linux-kernel - Re: [PATCH v5 07/16] RISC-V: Move T-Head PMU to CPU feature alternative framework

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231213-prewar-poison-f2781b4a6e84@spud>
Date:   Wed, 13 Dec 2023 15:27:25 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Yu Chien Peter Lin <peterlin@...estech.com>
Cc:     acme@...nel.org, adrian.hunter@...el.com, ajones@...tanamicro.com,
        alexander.shishkin@...ux.intel.com, andre.przywara@....com,
        anup@...infault.org, aou@...s.berkeley.edu, atishp@...shpatra.org,
        conor+dt@...nel.org, conor.dooley@...rochip.com,
        devicetree@...r.kernel.org, dminus@...estech.com,
        evan@...osinc.com, geert+renesas@...der.be, guoren@...nel.org,
        heiko@...ech.de, irogers@...gle.com, jernej.skrabec@...il.com,
        jolsa@...nel.org, jszhang@...nel.org,
        krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        linux-renesas-soc@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, locus84@...estech.com,
        magnus.damm@...il.com, mark.rutland@....com, mingo@...hat.com,
        n.shubin@...ro.com, namhyung@...nel.org, palmer@...belt.com,
        paul.walmsley@...ive.com, peterz@...radead.org,
        prabhakar.mahadev-lad.rj@...renesas.com, rdunlap@...radead.org,
        robh+dt@...nel.org, samuel@...lland.org, sunilvl@...tanamicro.com,
        tglx@...utronix.de, tim609@...estech.com, uwu@...nowy.me,
        wens@...e.org, will@...nel.org, ycliang@...estech.com,
        inochiama@...look.com
Subject: Re: [PATCH v5 07/16] RISC-V: Move T-Head PMU to CPU feature
 alternative framework

On Wed, Dec 13, 2023 at 03:02:52PM +0800, Yu Chien Peter Lin wrote:
> The custom PMU extension aims to support perf event sampling prior
> to the ratification of Sscofpmf. Instead of diverting the bits and
> register reserved for future standard, a set of custom registers is
> added.  Hence, we may consider it as a CPU feature rather than an
> erratum.
> 
> T-Head cores need to append "xtheadpmu" to the riscv,isa-extensions
> for each cpu node in device tree, and enable CONFIG_THEAD_CUSTOM_PMU
> for proper functioning as of this commit.
> 
> Signed-off-by: Yu Chien Peter Lin <peterlin@...estech.com>
> Reviewed-by: Guo Ren <guoren@...nel.org>

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Cheers,
Conor.

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)