From: Neil Armstrong <narmstrong@baylibre.com>
To: Nicolas Boichat <drinkcat@chromium.org>,
Rob Herring <robh@kernel.org>,
Steven Price <steven.price@arm.com>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Cc: devicetree@vger.kernel.org,
Tomeu Vizoso <tomeu.vizoso@collabora.com>,
fshao@chromium.org, David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
boris.brezillon@collabora.com,
linux-mediatek@lists.infradead.org,
dri-devel@lists.freedesktop.org, hsinyi@chromium.org,
Matthias Brugger <matthias.bgg@gmail.com>,
hoegsberg@chromium.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v13 0/4] drm/panfrost: Add support for mt8183 GPU
Date: Mon, 26 Apr 2021 11:58:59 +0200 [thread overview]
Message-ID: <c91746ce-88b6-5612-74a5-74600c7761e8@baylibre.com> (raw)
In-Reply-To: <20210421052855.1279713-1-drinkcat@chromium.org>
Hi,
On 21/04/2021 07:28, Nicolas Boichat wrote:
> Hi!
>
> This is just a rebase of the v11, untested (but it seems like
> Neil Armstrong recently tested it), with small changes in
> binding and dts. v11 cover follows:
>
> Follow-up on the v5 [1], things have gotten significantly
> better in the last year, thanks to the efforts on Bifrost
> support by the Collabora team (and probably others I'm not
> aware of).
>
> I've been testing this series on a MT8183/kukui device, with a
> chromeos-5.10 kernel [2], and got basic Chromium OS UI up with
> mesa 20.3.2 (lots of artifacts though).
>
> devfreq is currently not supported, as we'll need:
> - Clock core support for switching the GPU core clock (see 2/4).
> - Platform-specific handling of the 2-regulator (see 3/4).
>
> Since the latter is easy to detect, patch 3/4 just disables
> devfreq if the more than one regulator is specified in the
> compatible matching table.
>
> [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20200306041345.259332-1-drinkcat@chromium.org/
> [2] https://crrev.com/c/2608070
>
> Changes in v13:
> - devfreq: Fix conflict resolution mistake when rebasing, didn't
> even compile. Oops.
>
> Changes in v12:
> - binding: Fix min/maxItems logic (Rob Herring)
> - Add gpu node to mt8183-pumpkin.dts as well (Neil Armstrong).
>
> Changes in v11:
> - binding: power-domain-names not power-domainS-names
> - mt8183*.dts: remove incorrect supply-names
>
> Changes in v10:
> - Fix the binding to make sure sram-supply property can be provided.
>
> Changes in v9:
> - Explain why devfreq needs to be disabled for GPUs with >1
> regulators.
>
> Changes in v8:
> - Use DRM_DEV_INFO instead of ERROR
>
> Changes in v7:
> - Fix GPU ID in commit message
> - Fix GPU ID in commit message
>
> Changes in v6:
> - Rebased, actually tested with recent mesa driver.
> - Add gpu regulators to kukui dtsi as well.
> - Power domains are now attached to spm, not scpsys
> - Drop R-B.
> - devfreq: New change
> - Context conflicts, reflow the code.
> - Use ARRAY_SIZE for power domains too.
>
> Changes in v5:
> - Rename "2d" power domain to "core2"
> - Rename "2d" power domain to "core2" (keep R-B again).
> - Change power domain name from 2d to core2.
>
> Changes in v4:
> - Add power-domain-names description
> (kept Alyssa's reviewed-by as the change is minor)
> - Add power-domain-names to describe the 3 domains.
> (kept Alyssa's reviewed-by as the change is minor)
> - Add power domain names.
>
> Changes in v3:
> - Match mt8183-mali instead of bifrost, as we require special
> handling for the 2 regulators and 3 power domains.
>
> Changes in v2:
> - Use sram instead of mali_sram as SRAM supply name.
> - Rename mali@ to gpu@.
>
> Nicolas Boichat (4):
> dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183
> arm64: dts: mt8183: Add node for the Mali GPU
> drm/panfrost: devfreq: Disable devfreq when num_supplies > 1
> drm/panfrost: Add mt8183-mali compatible string
>
> .../bindings/gpu/arm,mali-bifrost.yaml | 30 ++++-
> arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 5 +
> .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 5 +
> .../boot/dts/mediatek/mt8183-pumpkin.dts | 5 +
> arch/arm64/boot/dts/mediatek/mt8183.dtsi | 105 ++++++++++++++++++
> drivers/gpu/drm/panfrost/panfrost_devfreq.c | 9 ++
> drivers/gpu/drm/panfrost/panfrost_drv.c | 10 ++
> 7 files changed, 168 insertions(+), 1 deletion(-)
>
Seems this version is ready to be applied if we get a review on the DT ?
Mathias ? could you have a look ?
Neil
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next prev parent reply other threads:[~2021-04-26 9:59 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 5:28 [PATCH v13 0/4] drm/panfrost: Add support for mt8183 GPU Nicolas Boichat
2021-04-21 5:28 ` [PATCH v13 1/4] dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 Nicolas Boichat
2021-04-21 16:59 ` Rob Herring
2021-04-21 5:28 ` [PATCH v13 3/4] drm/panfrost: devfreq: Disable devfreq when num_supplies > 1 Nicolas Boichat
2021-04-21 5:28 ` [PATCH v13 4/4] drm/panfrost: Add mt8183-mali compatible string Nicolas Boichat
2021-04-21 13:17 ` Alyssa Rosenzweig
2021-04-26 9:58 ` Neil Armstrong [this message]
2021-05-13 14:55 ` [PATCH v13 0/4] drm/panfrost: Add support for mt8183 GPU Ezequiel Garcia
2021-05-14 14:48 ` Neil Armstrong
2021-05-14 15:27 ` Steven Price
2021-05-15 1:29 ` Nicolas Boichat
2021-05-17 10:24 ` Neil Armstrong
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