Mailinglist Archive: radeonhd (288 mails)

[Dariem Pérez Herrera <dariemp@xxxxxx>]

Victor Vlasenko escribió:
> > That is the same model I use, and it uses an RS600 GPU. It has never 
> > worked for me with radeonhd, it always reports the same problem: "MC 
> > not idle". Some time ago I wrote here about the issue and I said I 
> > would try to help, but time is my enemy right now and I haven' t done 
> > much.
>
> Yup, I want to hack at it too :) Could you point me to some hacking 
> guide for radeonhd? Or give a couple of pointers, how could I localize 
> and solve this issue? (I have system programming background)
:-)  A complex issue. There is no guide nor official documentation. 
What I was doing: studying radeon and radeonhd source codes and see what 
clues I could obtain from the first to implement in the second. AFAICS, 
both use MMIO to access GPU registers' addresses, so it seems it can be 
done. Till now, I think there are some problems with addresses pointing 
to RS690 registers instead of those of RS600 (rhd_regs.h). Someone said 
RS600 uses the same addresses R5xx does, with a minor difference, but I 
haven't checked it out. If you have the time...well, good luck.

best regards,

Dariem

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