On Fri, Oct 14, 2011 at 6:13 AM, Huang, FrankR <FrankR.Huang@xxxxxxx> wrote: > > >> -----Original Message----- >> From: dri-devel-bounces+frankr.huang=amd.com@xxxxxxxxxxxxxxxxxxxxx >> [mailto:dri-devel-bounces+frankr.huang=amd.com@xxxxxxxxxxxxxxxxxxxxx] On >> Behalf Of Alex Deucher >> Sent: 2011?10?13? 21:06 >> To: Huang, FrankR >> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx >> Subject: Re: Question on S3 on evergreen >> >> On Thu, Oct 13, 2011 at 5:54 AM, Huang, FrankR <FrankR.Huang@xxxxxxx> >> wrote: >> > Hi, >> > I have a question on S3 suspend/resume process for evergreen >> > chipset. >> > Generally introduction, I am developing WEC7 graphics driver on >> > evergreen chipset. Alex guide me on this. And right now I move to S3 >> > part work. I have ported radeon_suspend_kms() and radeon_resume_kms() >> > functions from linux to CE. Actually I have validated that the >> > evergreen_suspend() and evergreen_resume() work already on CE. But when >> > the resume work is done and the screen is shown up, I found the 3D >> > engine works wrong. The HW acceleration of it is not correct anymore. >> > Misrendering is happening. By tracing the root cause, I suspect that the >> > problem may be in evergreen_gpu_init()( in evergreen_startup) call when >> > resume(), but I am not sure. Can you guys tell me which part I should >> > debug? >> > By the way, the linux kernel source I used is from 2010.10. So >> > quite a lot patches have been committed into community during this >> > period. Right now, the kernel source I used is around date >> > 2011.7(Version 3.0.0). Is there any patches update for S3 during this >> > period? >> > >> >> Does soft resetting the GPU during resume help >> (evergreen_gpu_soft_reset()) ? If so, try updating your version of >> evergreen_cp_resume() to the latest upstream bits. > I have checked the code, evergreen_cp_resume() is already latest. How about evergreen_gpu_init()? I found this function call when resume will cause this misrendering. But I can not navigate the root cause. > Does dropping the call to evergreen_program_channel_remap() help? Alex > Thanks, > Frank > >> >> Alex >> _______________________________________________ >> dri-devel mailing list >> dri-devel@xxxxxxxxxxxxxxxxxxxxx >> http://lists.freedesktop.org/mailman/listinfo/dri-devel > > > _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
