Register programming spec for RV630 and M56 available on x.org
Wednesday 12th September 2007, 08:08:00 PM, written by Rys
As promised by AMD, register specifications for their modern graphics
processors are slowly starting to become available, to aid driver and tools development on Linux and other OSes. Today saw the availibility of
the 2D, VIP and bringup register lists for RV630 and M56 (Mobility Radeon
X1600), on x.org.
The register specifications in the documents will help developers initialise the device on the bus, get the MC into shape, wake the 2D engine up (although there is no specific 2D engine in R6-series hardware, if memory serves) and configure the display(s) for output.
There's no 3D register specification, nor is there a programming guide for the register lists to help developers use them correctly, but a quick glance shows that it should be enough to bring a 2D driver up for the two chips and start drawing.
The documentation is primarily for X driver developers, and it's available from x.org/docs/AMD for the curious.
The register specifications in the documents will help developers initialise the device on the bus, get the MC into shape, wake the 2D engine up (although there is no specific 2D engine in R6-series hardware, if memory serves) and configure the display(s) for output.
There's no 3D register specification, nor is there a programming guide for the register lists to help developers use them correctly, but a quick glance shows that it should be enough to bring a 2D driver up for the two chips and start drawing.
The documentation is primarily for X driver developers, and it's available from x.org/docs/AMD for the curious.
Tagging
amd ± driver, register, specification, X.org, 2D, VIP, bus, MC
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(edit: )Phoronix.com says AMD will provide specifications under NDA to X.Org developers, resulting in an open source driver. This seems to be a more likely scenario than them opening it up to the general public.