Re: 答复: 答复: [Gnewsense-dev] Re: gN ewSense-MIPS and SiliconMotion video driver

[Octavio Rossell]

Teddy: how can we help to get this driver have a better performance ?

Is there any documentation (of the Hardware) available to make easy the
development of a better driver ? If it exist ¿where can we found it?

Teddy Wang escribió:
>     Now our new SM502 and SM712 driver can support latest XServer. But the
> new SM712 driver doesn't test in the loongson platform.  The new SM502
> Xserver driver you used in the AIO platform also can support latest Xserver.
> 
> -----邮件原件-----
> 发件人: zhangfx [mailto:address@hidden 
> 发送时间: 2010年3月5日 8:55
> 收件人: Teddy Wang
> 抄送: 'yanhua'; 'Daniel Clark'; 'chenj'; '崔春波'; address@hidden;
> 'Bernie Innocenti'
> 主题: Re: 答复: [Gnewsense-dev] Re: gNewSense-MIPS and SiliconMotion video
> driver
> 
> It seems that people are complaining that the performance is much worse 
> than current one.
> 
> Teddy Wang wrote:
>> Hi, yanhua,
>>
>>  Now the Siliconmotion driver in freedesktop port can support higher X
>> server. It can support SM712 and SM502. You can refer to
>> http://cgit.freedesktop.org/xorg/driver/xf86-video-siliconmotion/
>>  
>>
>> Best Regards,
>> Teddy Wang 王力强
>> Silicon Motion, Inc. (China)
>> Tel: 86 21 65107780 ext.7162
>> Mobile: 86 13817794114
>> -----邮件原件-----
>> 发件人: yanhua [mailto:address@hidden 
>> 发送时间: 2010年3月4日 17:30
>> 收件人: Daniel Clark; Teddy Wang; chenj; 崔春波
>> 抄送: address@hidden; Bernie Innocenti; zhangfx
>> 主题: Re: [Gnewsense-dev] Re: gNewSense-MIPS and SiliconMotion video
> driver
>> We only test yeeloong siliconmotion driver for sm712 in x server 1.4.2. 
>> some work is  needed to  make higher x server work properly.
>>
>> High Teddy:
>>      We need to port siliconmotion  x driver to higher x server, the 
>> best is the newest x server.  Could you please help to do this work?
>>
>> Daniel Clark 写道:
>>   
>>> On 02/28/2010 11:24 PM, Octavio Rossell wrote:
>>>     
>>>> We need to recompile the Silicon Motion Driver into the gNewSense Lemote
>>>> Yeelong. There is an existing effort in this [1] but the package appears
>>>> to crash or to not work properly in some reeboot situation.
>>>>       
>>> There are actually several projects / hacks to get X working better in 
>>> various ways on the yeeloong. I believe all of them suffer from 
>>> various problems, and most are dead ends (code that would never be 
>>> accepted against upstream and/or against really old versions of X).
>>>
>>> Bernie has a pretty comprehensive overview of the situation as it was 
>>> a month or two ago posted somewhere; I'll try to gather all the 
>>> mailing list posts about and put summaries/references to them on a 
>>> wiki page somewhere if you tell me you would find that to be useful.
>>>
>>> The most recent effort I've seen has code (patch file) and discussion 
>>> here:
>>>
>>>
>>>     
> http://groups.google.com/group/loongson-dev/browse_thread/thread/570549e3d78
>> 94fef/07ba7be1fd1b15c8?lnk=gst&q=x11#07ba7be1fd1b15c8 
>>   
>>> Or here if that URL is broken:
>>>
>>> http://ur1.ca/obkd
>>>
>>>     
>>>> Any help, advice or information will be helpful.
>>>>       
>>> Advice:
>>>
>>> (a) Check mailing list archives, monitor and keep up to date at least 
>>> this mailing list, loongson-dev, #gnewsense-dev irc. Email 
>>> address@hidden and ask for access to address@hidden and its archives.
>>>
>>> (b) Get on the proper xorg lists / channels.
>>>
>>> (c) If you don't have commit access to xorg version control, be sure 
>>> to form a relationship with someone who does, and is willing to help 
>>> you get your changes in. Ditto for the upstream Debian packages, 
>>> unless you have resources to maintain seperate gNS-specific packages 
>>> until the end of time, and kk is cool with that.
>>>
>>> (d) Make sure any development happens in a publicly available version 
>>> control repository. Tell at least this list and loongson-dev where 
>>> that is once anything at all useful is there.
>>>
>>> (e) Keep in mind that the goal is to be included in upstream xorg; 
>>> avoid quick hacks that will never be accepted upstream.
>>>
>>> (f) If the people working on this on your end are not good at English, 
>>> see if you can get someone who is to translate the available doc / 
>>> list threads to them and vice versa.
>>>
>>> (g) You may also want to follow Zhang Le's Gentoo work, it seems to be 
>>> the most advanced loongson2f-optimized GNU/Linux distribution at the 
>>> moment (i.e. it's actually all compiled with proper mipsel abi, 
>>> loongson2f optimization, loongson2f bug workarounds). Also 
>>> collaborating with people working on OpenBSD/Loongson may be useful; 
>>> we may disagree politically at times, but we use the same upstream 
>>> xorg code.
>>>
>>> (h) You are probably more likely to get technical help regarding the 
>>> work on loongson-dev or xorg lists.
>>>
>>> (i) Some low level info on the SM hardware is at 
>>> http://groups.google.com/group/loongson-dev/files
>>>
>>> (j) If you need to speed up compiles bug me on #gnewsense-dev - I'm 
>>> close to having an icecc setup done, and should have 10 more 2f boxes 
>>> to add to the existing 4 in the farm Monday.
>>>
>>> Happy Hacking,
>>>     
>>
>>   
> 

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