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cphealy>
I'm familiar with using the Vivante 3D GPU with Mesa and etnaviv kernel driver. What is available for working with the Vivante 2D GPUs?
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pcercuei>
The same
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pcercuei>
etnaviv does use the 2D core
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cphealy>
Is this with Mesa or some other userspace code?
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pcercuei>
with mesa, yes
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adjtm>
cphealy, what do you want to run? xserver with 2D acceleration? android?
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dv_>
pcercuei: but there's no stable userspace 2D API, is there?
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dv_>
for 3D, there's vulkan and opengl
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dv_>
or is there a mesa specific userspace 2D API?
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pcercuei>
dv_: no API
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pcercuei>
I just said that etnaviv uses the 2D core
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pcercuei>
However it's only used complementary to the 3D core, you can't use etnaviv for vivante chips that only have the 2D core
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cphealy>
pcercuei: What's preventing the use of etnaviv for vivante chips that only have 2D core?
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dv_>
do such chips even exist?
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dv_>
I heard about viv gpus with no 2d core, but gpus with no 3d core?
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cphealy>
Sure, TI chips have GC320 without 3D GPU.
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pcercuei>
dv_: they do
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pcercuei>
Ingenic JZ4760 has a 2D core, no 3D core
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pcercuei>
I can't remember the exact chip model
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austriancoder>
mesa does
_not_ use the 2D core. There is a ddx driver that uses the 2D core
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pcercuei>
austriancoder, that's not what I've been told last time
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pcercuei>
From previous conversations here I understood that the 2D core is somewhat used by etnaviv alongside the 3D core
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cphealy>
TI AM57x has Vivante GC320 2D GPU and Imagination 3D GPU
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pcercuei>
austriancoder, but I guess there are chances that you know better than me on that topic ;)
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