From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: kernel@collabora.com, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v3 4/4] cpufreq: mediatek-hw: Add support for MT8196
Date: Thu, 17 Jul 2025 12:27:56 +0200 [thread overview]
Message-ID: <c97f9e7c-4985-4e2f-aaaf-981960974212@collabora.com> (raw)
In-Reply-To: <20250716-mt8196-cpufreq-v3-4-d440fb810d7e@collabora.com>
Il 16/07/25 19:51, Nicolas Frattaroli ha scritto:
> The MT8196 SoC uses DVFS to set a desired target frequency for each CPU
> core. It also uses slightly different register offsets.
>
> Add support for it, which necessitates reworking how the mmio regs are
> acquired, as mt8196 has the fdvfs register before the performance domain
> registers.
>
> I've verified with both `sysbench cpu run` and `head -c 10G \
> /dev/urandom | pigz -p 8 -c - | pv -ba > /dev/null` that we don't just
> get a higher reported clock frequency, but that the observed performance
> also increases, by a factor of 2.64 in an 8 thread sysbench test.
>
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogiaocchino.delregno@collabora.com>
next prev parent reply other threads:[~2025-07-17 10:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-16 17:51 [PATCH v3 0/4] MT8196 CPUFreq Support Nicolas Frattaroli
2025-07-16 17:51 ` [PATCH v3 1/4] dt-bindings: cpufreq: Add mediatek,mt8196-cpufreq-hw binding Nicolas Frattaroli
2025-07-17 10:28 ` AngeloGioacchino Del Regno
2025-07-21 19:38 ` Rob Herring (Arm)
2025-07-16 17:51 ` [PATCH v3 2/4] cpufreq: mediatek-hw: Refactor match data into struct Nicolas Frattaroli
2025-07-16 17:51 ` [PATCH v3 3/4] cpufreq: mediatek-hw: Separate per-domain and per-instance data Nicolas Frattaroli
2025-07-16 17:51 ` [PATCH v3 4/4] cpufreq: mediatek-hw: Add support for MT8196 Nicolas Frattaroli
2025-07-17 10:27 ` AngeloGioacchino Del Regno [this message]
2025-07-22 4:10 ` [PATCH v3 0/4] MT8196 CPUFreq Support Viresh Kumar
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=c97f9e7c-4985-4e2f-aaaf-981960974212@collabora.com \
--to=angelogioacchino.delregno@collabora.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=kernel@collabora.com \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-pm@vger.kernel.org \
--cc=matthias.bgg@gmail.com \
--cc=nicolas.frattaroli@collabora.com \
--cc=rafael@kernel.org \
--cc=robh@kernel.org \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®