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A comment on Building a 64-bit aarch64 kernel and userspace for the Raspberry Pi 4. Parent comment

Re:Building a 64-bit aarch64 kernel and userspace for the Ra... by Vogtinator on Saturday November 16, 2019 @11:11AM (#21553313)
The GPU has nothing to do with what the OS on the CPU is doing - it's an entirely separate architecture anyway (VideoCore 6 on RPi4).

The reason their /opt/vc stuff doesn't support 64bit is because there are proprietary binaries directly from Broadcom. Also, they use interfaces provided only by the downstream RPi kernel.

There is a blog post from the RPi foundation about support for VC6 in Mesa.

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Re:Building a 64-bit aarch64 kernel and userspace for the Ra... by the-dude on Saturday November 16, 2019 @11:44AM (#21553524)
What do you exactly mean by "/opt/vc" stuff? OpenGL?

Because I am decoding, encoding and rendering 1080p H264 with the VC on a 64-bit kernel.

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Re:Building a 64-bit aarch64 kernel and userspace for the Ra... by jackalo on Saturday November 16, 2019 @12:05PM (#21553620)
Things like vcgencmd that allow you to read and write values to the GPU OS that actually controls the physical hardware.
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