From: Mikhail Kalashnikov <iuncuim@gmail.com>
This patch adds gpu support on devices with a523 processor.
$ dmesg | grep panfrost
[ 3.826968] panfrost 1800000.gpu: clock rate = 432000000
[ 3.832305] panfrost 1800000.gpu: bus_clock rate = 200000000
[ 3.838353] panfrost 1800000.gpu: mali-g57 id 0x9091 major 0x0 minor 0x1
status 0x0
[ 3.846050] panfrost 1800000.gpu: features: 00000000,000019f7, issues:
00000001,80000400
[ 3.854134] panfrost 1800000.gpu: Features: L2:0x07110206 Shader:0x00000000
Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7
[ 3.866011] panfrost 1800000.gpu: shader_present=0x1 l2_present=0x1
[ 3.874108] [drm] Initialized panfrost 1.3.0 for 1800000.gpu on minor 0
Since there is no support for image output yet, it may be difficult to confirm
functionality. This can be done by running weston with vnc access using
the command:
$ weston --renderer=gl --backend=vnc --disable-transport-layer-security
--xwayland --width=640 --height=480
After that I was able to run glmark2 with a terrain result of 30 fps,
while I can see that there is a load on the GPU in nvtop and the CPU remains
unloaded.
Tested on x96qproplus and walnutpi 2b devices.
Based on v6.16-rc5 with patches:
https://lore.kernel.org/all/20250628054438.2864220-1-wens@kernel.org
https://lore.kernel.org/linux-sunxi/20250628161608.3072968-1-wens@kernel.org
https://lore.kernel.org/linux-sunxi/20250627152918.2606728-1-wens@kernel.org/
Changes from v1:
- added compatible to the documentation
v1: https://lore.kernel.org/linux-sunxi/CAGb2v67Pu7CTJx3K=3CVSbQ9mNB-4Vrq+iaA+hUWtxdwS2aD0Q@mail.gmail.com
Mikhail Kalashnikov (3):
dt-bindings: gpu: mali-bifrost: Add Allwinner A523 compatible
arm64: dts: allwinner: a523: add Mali GPU node
arm64: dts: allwinner: a523: enable Mali GPU for all boards
.../devicetree/bindings/gpu/arm,mali-bifrost.yaml | 1 +
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 15 +++++++++++++++
.../boot/dts/allwinner/sun55i-a527-cubie-a5e.dts | 5 +++++
.../boot/dts/allwinner/sun55i-h728-x96qpro+.dts | 5 +++++
.../boot/dts/allwinner/sun55i-t527-avaota-a1.dts | 5 +++++
.../dts/allwinner/sun55i-t527-orangepi-4a.dts | 5 +++++
6 files changed, 36 insertions(+)
--
2.50.0