DRI not working, AMD E 300 with Radeon HD 6310

[Waitman Gobble]

On Wed, November 19, 2014 1:06 pm, Felix Palmen wrote:
> Am Mittwoch, 19. November 2014, 10:41:03 schrieben Sie:
>
>> I've found numerous posts about 'how buggy' the HD 6310 is, for example
>>  mozilla.org mailing lists (posters there claiming it's the worst). The
>>  PALM firmware is supposedly Northern Islands series, the 6310 seems to
>>  have been manufactured about the time these were introduced on the
>> market. Radeon support has been further developed since 3.8. But it's
>> some work to import the code, which may be an understatement, I'm
>> definitely not an expert but casual browsing it seems the threading
>> calls need changed, and these drivers use the i2c interface which AFAIK
>> has been deprecated in FreeBSD for some time.
>>
>
> Ok, this sounds quite bad. Just out of curiosity: what's the replacement
> for i2c then? This would require a major porting effort? I'm still a
> little confused by the fact someone obviously tested the HD 6310
> successfully, according to the wiki page.
>
> Meanwhile, still waiting for buildworld to finish, I found this:
> https://bugs.freedesktop.org/show_bug.cgi?id=66963#c175
>
>
> Different chip, different OS, but at least same error. I prepared a
> similar patch against freebsd head (completely disabling the DMA ring for
> my chip) just for testing purposes. I'll report here whether this does any
> good, just in case someone else faces the same problem. Of course, this is
> an ugly hack, intentionally disabling a feature in the driver, but if it
> really helps, I could polish the patch so it only affects exactly the
> 0x9802 chip. But, let's
> see first...
>
> --
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I read an ml thread about i2c interface several months ago, can't seem to
find it at the moment. But I think the i2c calls would have to be reworked
around include/dev/iicbus/iic.h


-- 
Waitman Gobble
Los Altos California USA
+1.510-830-7975