From: Nicolas Boichat <drinkcat@chromium.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Tomeu Vizoso <tomeu.vizoso@collabora.com>,
David Airlie <airlied@linux.ie>,
linux-kernel@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
dri-devel@lists.freedesktop.org,
Steven Price <steven.price@arm.com>,
Mark Brown <broonie@kernel.org>,
linux-mediatek@lists.infradead.org,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
hsinyi@chromium.org, Matthias Brugger <matthias.bgg@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/7] Add dts for mt8183 GPU (and misc panfrost patches)
Date: Wed, 8 Jan 2020 13:23:30 +0800 [thread overview]
Message-ID: <20200108052337.65916-1-drinkcat@chromium.org> (raw)
Hi!
Sorry for the long delay since https://patchwork.kernel.org/patch/11132381/,
finally got around to give this a real try.
The main purpose of this series is to upstream the dts change and the binding
document, but I wanted to see how far I could probe the GPU, to check that the
binding is indeed correct. The rest of the patches are RFC/work-in-progress, but
I think some of them could already be picked up.
So this is tested on MT8183 with a chromeos-4.19 kernel, and a ton of
backports to get the latest panfrost driver (I should probably try on
linux-next at some point but this was the path of least resistance).
I tested it as a module as it's more challenging (originally probing would
work built-in, on boot, but not as a module, as I didn't have the power
domain changes, and all power domains are on by default during boot).
Probing logs looks like this, currently:
[ 221.867726] panfrost 13040000.gpu: clock rate = 511999970
[ 221.867929] panfrost 13040000.gpu: Linked as a consumer to regulator.14
[ 221.868600] panfrost 13040000.gpu: Linked as a consumer to regulator.31
[ 221.870586] panfrost 13040000.gpu: Linked as a consumer to genpd:0:13040000.gpu
[ 221.871492] panfrost 13040000.gpu: Linked as a consumer to genpd:1:13040000.gpu
[ 221.871866] panfrost 13040000.gpu: Linked as a consumer to genpd:2:13040000.gpu
[ 221.872427] panfrost 13040000.gpu: mali-g72 id 0x6221 major 0x0 minor 0x3 status 0x0
[ 221.872439] panfrost 13040000.gpu: features: 00000000,13de77ff, issues: 00000000,00000400
[ 221.872445] panfrost 13040000.gpu: Features: L2:0x07120206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7
[ 221.872449] panfrost 13040000.gpu: shader_present=0x7 l2_present=0x1
[ 221.873526] panfrost 13040000.gpu: error powering up gpu stack
[ 221.878088] [drm] Initialized panfrost 1.1.0 20180908 for 13040000.gpu on minor 2
[ 221.940817] panfrost 13040000.gpu: error powering up gpu stack
[ 222.018233] panfrost 13040000.gpu: error powering up gpu stack
(repeated)
So the GPU is probed, but there's an issue when powering up the STACK, not
quite sure why, I'll try to have a deeper look, at some point.
Thanks!
Nicolas
v2:
- Use sram instead of mali_sram as SRAM supply name.
- Rename mali@ to gpu@.
- Add dt-bindings changes
- Stacking patches after the device tree change that allow basic
probing (still incomplete and broken).
Nicolas Boichat (7):
dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183
arm64: dts: mt8183: Add node for the Mali GPU
drm/panfrost: Improve error reporting in panfrost_gpu_power_on
drm/panfrost: Add support for a second regulator for the GPU
drm/panfrost: Add support for multiple power domain support
RFC: drm/panfrost: Add bifrost compatible string
RFC: drm/panfrost: devfreq: Add support for 2 regulators
.../bindings/gpu/arm,mali-bifrost.yaml | 20 ++++
arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 ++
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 104 +++++++++++++++++
drivers/gpu/drm/panfrost/panfrost_devfreq.c | 18 +++
drivers/gpu/drm/panfrost/panfrost_device.c | 108 ++++++++++++++++--
drivers/gpu/drm/panfrost/panfrost_device.h | 7 ++
drivers/gpu/drm/panfrost/panfrost_drv.c | 1 +
drivers/gpu/drm/panfrost/panfrost_gpu.c | 15 ++-
8 files changed, 267 insertions(+), 13 deletions(-)
--
2.24.1.735.g03f4e72817-goog
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next reply other threads:[~2020-01-08 5:23 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-08 5:23 Nicolas Boichat [this message]
2020-01-08 5:23 ` [PATCH v2 1/7] dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 Nicolas Boichat
2020-01-08 5:23 ` [PATCH v2 2/7] arm64: dts: mt8183: Add node for the Mali GPU Nicolas Boichat
2020-01-08 5:23 ` [PATCH v2 3/7] drm/panfrost: Improve error reporting in panfrost_gpu_power_on Nicolas Boichat
2020-01-09 12:03 ` Steven Price
2020-01-08 5:23 ` [PATCH v2 4/7] drm/panfrost: Add support for a second regulator for the GPU Nicolas Boichat
2020-01-08 13:23 ` Mark Brown
2020-01-08 22:52 ` Nicolas Boichat
2020-01-09 14:14 ` Steven Price
2020-01-09 16:28 ` Mark Brown
2020-01-09 16:53 ` Steven Price
2020-01-09 19:49 ` Mark Brown
2020-01-10 11:30 ` Steven Price
2020-01-14 7:21 ` Nicolas Boichat
2020-01-09 16:56 ` Rob Herring
2020-01-10 11:39 ` Steven Price
2020-01-08 5:23 ` [PATCH v2 5/7] drm/panfrost: Add support for multiple power domain support Nicolas Boichat
2020-01-09 14:08 ` Steven Price
2020-01-10 1:53 ` Nicolas Boichat
2020-01-27 7:55 ` Ulf Hansson
2020-02-07 2:04 ` Nicolas Boichat
2020-02-07 2:04 ` Nicolas Boichat
2020-01-08 5:23 ` [PATCH v2 6/7, RFC] drm/panfrost: Add bifrost compatible string Nicolas Boichat
2020-01-09 14:11 ` Steven Price
2020-01-08 5:23 ` [PATCH v2 7/7, RFC]: drm/panfrost: devfreq: Add support for 2 regulators Nicolas Boichat
2020-01-08 20:09 ` Rob Herring
2020-01-08 22:44 ` Nicolas Boichat
2020-01-08 12:56 ` [PATCH v2 0/7] Add dts for mt8183 GPU (and misc panfrost patches) Alyssa Rosenzweig
2020-01-09 9:08 ` Nicolas Boichat
2020-01-09 12:01 ` Steven Price
2020-01-09 13:10 ` Robin Murphy
2020-01-09 13:29 ` Steven Price
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