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

[Wu Zhangjin]

Shiwei have found, with this patch, the performance is increaced very
obviously:

-----------------

address@hidden:~$ mplayer -benchmark -nosound -vo xv Flack.avi
no loongson2f patch:
BENCHMARKs: VC: 132.980s VO: 121.602s A:   0.000s Sys:  12.882s
=  267.465s
BENCHMARK%: VC: 49.7188% VO: 45.4648% A:  0.0000% Sys:  4.8164% =
100.0000%
loongson2f patch:
BENCHMARKs: VC: 128.548s VO:  42.528s A:   0.000s Sys:   5.600s
=  176.676s
BENCHMARK%: VC: 72.7592% VO: 24.0712% A:  0.0000% Sys:  3.1697% =
100.0000%

--------------------

from: http://www.bjlx.org.cn/node/753

The tested patches for Xorg and silicon motion driver were also put on
the above web page.

Regards,
        Wu Zhangjin

On Mon, 2010-03-08 at 00:45 -0430, Octavio Rossell wrote:
> Teddy, in this list:
> 
> http://groups.google.com/group/loongson-dev/browse_thread/thread/570549e3d7894fef/07ba7be1fd1b15c8
> 
> there was a proposed patch to the current version:
> 
> http://loongson-dev.googlegroups.com/attach/c8ccd2a1370f5927/xf86-video-siliconmotion-1.7.3-fix-loongson.patch
> 
> It is possible to study this to add the proposed changes into the
> oficial driver?
> 
> 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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