At the end of February, Broadcom announced the release of full documentation for the VideoCore IV graphics core, and a complete source release of the graphics stack for the BCM21553 cellphone chip. To celebrate, we offered a $10k prize to the first person to port this codebase to the BCM2835 application processor that sits at the heart of the Raspberry Pi, and to get Quake 3 (which already runs on the Pi) running on the newly open ARM driver, rather on the closed-source VPU driver. Our hope was that the ported driver would be a helpful reference for anyone working on a Mesa/Gallium3D driver for VideoCore IV.
I’m delighted to say that we have a winner. Simon Hall is a longtime Pi hacker, who also produced the first ARMv6-accelerated copies-and-fills library back in 2012 and wrote the DMA kernel module that we integrate in our Raspbian releases. The prize couldn’t have gone to a more fitting recipient.
So, without further ado, here are Simon’s instructions for getting the driver up and running….
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