From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: linux-amlogic@lists.infradead.org, khilman@baylibre.com
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, narmstrong@baylibre.com
Subject: [PATCH v2 0/3] GPU DVFS for Meson GXBB/GXL/GXM/G12A/G12B/SM1
Date: Sun, 19 Jul 2020 19:32:10 +0200 [thread overview]
Message-ID: <20200719173213.639540-1-martin.blumenstingl@googlemail.com> (raw)
Now that we have GPU DVFS support in lima [0] (in Linux 5.7) and
panfrost we can make it work on Amlogic SoCs.
I decided to remove code duplication for the Mali-450 GPU on GXBB and
GXL so it will be easier to maintain this. This refactoring is part of
patch #1. Patches #2 (GXM) and #3 (G12A, G12B, SM1) are straight
forward; it replaces the hardcoded clock settings with the the GPU OPP
table.
I used the userspace devfreq governor to cycle through all available
GPU frequency settings on GXL, GXM and G12A (which covers all relevant
GPU driver and clock driver combinations). I have taken the GPU OPP
tables from Amlogic's 4.9 vendor kernel and the voltage settings
(opp-microvolt property) from the public dataseheets for all SoCs.
Changes since v1 at [1]:
- removed the clock patches from this series as they are already
applied (in Linux 5.8)
- rebased on top of Neil's recent patch "arm64: dts: meson-gxl-s805x:
reduce initial Mali450 core frequency"
- adapted patch #1 after Neil's GXL S805X patch to keep the 744MHz OPP
disabled on that package
- added a comment about GP0_PLL (as to why it's needed) to all patch
descriptions
- removed RFC prefix
[0] https://cgit.freedesktop.org/drm-misc/commit/?id=1996970773a323533e1cc1b6b97f00a95d675f32
[1] https://patchwork.kernel.org/cover/11466399/
Martin Blumenstingl (3):
arm64: dts: amlogic: meson-gx: add the Mali-450 OPP table and use DVFS
arm64: dts: amlogic: meson-gxm: add the Mali OPP table and use DVFS
arm64: dts: amlogic: meson-g12: add the Mali OPP table and use DVFS
.../boot/dts/amlogic/meson-g12-common.dtsi | 49 ++++++++++-----
.../boot/dts/amlogic/meson-gx-mali450.dtsi | 61 +++++++++++++++++++
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 51 ++++------------
.../boot/dts/amlogic/meson-gxl-mali.dtsi | 46 +++-----------
.../boot/dts/amlogic/meson-gxl-s805x.dtsi | 17 +++---
arch/arm64/boot/dts/amlogic/meson-gxm.dtsi | 45 +++++++++-----
6 files changed, 153 insertions(+), 116 deletions(-)
create mode 100644 arch/arm64/boot/dts/amlogic/meson-gx-mali450.dtsi
--
2.27.0
_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic
next reply other threads:[~2020-07-19 17:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-19 17:32 Martin Blumenstingl [this message]
2020-07-19 17:32 ` [PATCH v2 1/3] arm64: dts: amlogic: meson-gx: add the Mali-450 OPP table and use DVFS Martin Blumenstingl
2020-07-19 17:32 ` [PATCH v2 2/3] arm64: dts: amlogic: meson-gxm: add the Mali " Martin Blumenstingl
2020-07-19 17:32 ` [PATCH v2 3/3] arm64: dts: amlogic: meson-g12: " Martin Blumenstingl
2020-07-21 21:14 ` [PATCH v2 0/3] GPU DVFS for Meson GXBB/GXL/GXM/G12A/G12B/SM1 Kevin Hilman
2020-07-21 21:21 ` patchwork-bot+linux-amlogic
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=20200719173213.639540-1-martin.blumenstingl@googlemail.com \
--to=martin.blumenstingl@googlemail.com \
--cc=khilman@baylibre.com \
--cc=linux-amlogic@lists.infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=narmstrong@baylibre.com \
/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;
as well as URLs for NNTP newsgroup(s).