3.3 kernel from TI landing teams and powervr problems.

[Martin Ertsås]

True, I renamed that file, since I got the message that it couldn't find 
module omap. First I renamed it to omap_drv.so, which gave me the same 
error, then I tried pvr_drm.so which is the attatched logfile. Both of 
them are the omap_pvr_drv.so file.

Should there be a omap_drv.so file in the same directory as the 
omap_pvr_drv.so file? In that case there isn't, the omap_pvr_drv.so file 
is the only one in that directory when extracting that tarball. Actually 
there is no file at all named omap_drv.so:

$ find . -name "omap_drv.so"

return nothing, while just omap gives

$ find . -name "omap*"
./usr/lib/debug/usr/lib/xorg/modules/drivers/omap_pvr_drv.so
./usr/lib/xorg/modules/drivers/omap_pvr_drv.so

which is the same as "*drv*" gives.

- Martin


On 04/16/12 16:42, Clark, Rob wrote:
> There is an omap_drv.so which should be the xorg driver to load.. it
> will attempt to load (if present) omap_pvr_drv.so as a submodule for
> EXA accel.  I'm not entirely sure why it is named pvr_drv.so in your
> filesystem, but from list of symbols it seems to match what I would
> expect to be omap_pvr_drv.so
>
> BR,
> -R
>
>
> On Mon, Apr 16, 2012 at 8:45 AM, Martin Ertsås<martiert at gmail.com>  wrote:
>> Hi.
>>
>> I am not 100% sure this is the correct place to ask, but since I know at
>> least Ricardo Salveti are working on these drivers for omap4, and I
>> haven't heard anything from the ppa's mailing list, I try to ask here.
>> If this was completely wrong I'm sorry, but would still appreciate a
>> hint as to where to ask and who to contact.
>>
>> We are compiling what is now HEAD in the tilt-3.3 branch from the TI
>> landing team. To compile the module needed for the powervr drivers, we
>> had to get the pvr-omap4-dkms-1.7.15 and pvr-omap4-1.7.15 from
>> http://ppa.launchpad.net/tiomap-dev/omap-trunk/ubuntu/pool/main/p/
>>
>> We downloaded the tar.gz from those, extracted them and compiled them.
>> Problem starts when we boot the board and try to run startx. The xorg
>> config which comes with the later package is loaded, but when trying to
>> start X I get the error:
>>
>> (EE) Failed to load /usr/lib/xorg/modules/drivers/pvr_drv.so:
>> /usr/lib/xorg/modules/drivers/pvr_drv.so: undefined symbol: OMAPFinishAccess
>>
>> None of the libraries in pvr-omap4 contains this symbol, so I'm
>> wondering if I'm doing something wrong, or if there is something wrong
>> with the binary?
>>
>> When comparing to the library from rsalveti, from
>> people/rsalveti/pvr-omap4.git, I see that the dynsym table contains 232
>> entries, but there are only 64 entries in the same table in the other
>> library. Is this correct, or should there be more entries in the 1.7.15
>> library?
>>
>> Both the Xorg log and the readelf output from both libraries are
>> attached, if you have questions/need more info, please do not hesitate
>> to ask.
>>
>> Thank you in advance for the help, and thank you for the great work you
>> put in for making embedded Linux better.
>>
>> Best regards
>> Martin Ertsaas
>>
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