From: Neil Armstrong <narmstrong@baylibre.com>
To: Steven Price <steven.price@arm.com>,
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Cc: Nicolas Boichat <drinkcat@chromium.org>,
Tomeu Vizoso <tomeu.vizoso@collabora.com>,
fshao@chromium.org, David Airlie <airlied@linux.ie>,
hsinyi@chromium.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
devicetree <devicetree@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
Boris Brezillon <boris.brezillon@collabora.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
hoegsberg@chromium.org,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v13 0/4] drm/panfrost: Add support for mt8183 GPU
Date: Mon, 17 May 2021 12:24:51 +0200 [thread overview]
Message-ID: <8e35886c-7b51-aa93-5f9c-df0fae635828@baylibre.com> (raw)
In-Reply-To: <ce401ca2-e285-4fcf-0583-c1dae94dba6a@arm.com>
On 14/05/2021 17:27, Steven Price wrote:
> On 14/05/2021 15:48, Neil Armstrong wrote:
>> On 13/05/2021 16:55, Ezequiel Garcia wrote:
>>> Hi Neil,
>>>
>>> On Mon, 26 Apr 2021 at 06:59, Neil Armstrong <narmstrong@baylibre.com> wrote:
>>>>
>>>> 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 ?
>>>>
>>>
>>> Given Rob has Acked the DT bindings, I think it's OK to apply patches
>>> 1, 3 and 4 via drm-misc, letting Mediatek people sort out the DT changes.
>>>
>>> My two unsolicited cents :-)
>
> You make a convincing point - and if everyone is happy for the DT
> changes to be handled separately I don't see a reason for the other
> patches to be held up.
>
>> Yeah sure, is there a panfrost maintainer in the room ? I can apply them if you ack me.
>
> I seem to be applying most Panfrost changes these days, so I'll save you
> the effort and push 1,3,4 to drm-misc-next.
Thanks !
Neil
>
> Thanks,
>
> Steve
>
prev parent reply other threads:[~2021-05-17 10:24 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 ` [PATCH v13 0/4] drm/panfrost: Add support for mt8183 GPU Neil Armstrong
2021-05-13 14:55 ` 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 [this message]
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