Is it possible to init the graphics device without the radeon bios blob? such as with openradeonbios or with linux (you could do a petietboot solution to get graphics pre-OS)
It has no PSP (or obvs ME) and its performance is about equal to a sandy bridge, so it seems like a great choice if you don't need the dock connector on a pro series thinkpad like the t430.
AFAIK that version agesa is open source, at least I looked at it and didn't see anything weird but I am not an expert on this.
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On 27.05.2017 03:29, Taiidan@gmx.com wrote:
Is it possible to init the graphics device without the radeon bios blob? such as with openradeonbios or with linux (you could do a petietboot solution to get graphics pre-OS)
Yes, it's possible and has been done before (e.g. radeonhd and IIRC some work was already started for the G505). Though you probably have to write it yourself. AFAIK, all the "open" alternatives you mentioned above are mere interpreters for the proprietary AtomBIOS code.
It has no PSP (or obvs ME) and its performance is about equal to a sandy bridge, so it seems like a great choice if you don't need the dock connector on a pro series thinkpad like the t430.
Performance equal to Sandy Bridge? maybe if you throw all CPU and GFX cores in one pot. For a single CPU core I'd expect half of the perfor- mance at equal power consumption.
AFAIK that version agesa is open source, at least I looked at it and didn't see anything weird but I am not an expert on this.
Experts on this seem to be very rare. And the code looks like crap to me. I see no reason to trust it. OTOH, you don't need an NDA to get documentation to understand it. That was a huge plus for AMD in the past (I hope they will publish documentation for newer platforms too, let's see). Sadly, it didn't make anyone write readable code.
Nico
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Nico Huber -
Taiidan＠gmx.com