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?
Thanks, Frank