"Pallipadi, Venkatesh" [off-list ref] wrote:

I have done some experiments with this video post stuff. I think
this should be done using x86 emulator rather than doing in real
mode. The reason being, with an userlevel emulator we can call it
at different times during resume. The current real mode videopost
does it before the driver has restored the PCI config space. Some
systems (mostly the ones with Radeon card) requires this to be
done after PCI config space is restored. With a userspace
emulator, we can call it at various places during the driver
restore. 

I have seen the SciTech's x86 emulator in X.org. I could seperate
it out from X into a stand alone application that does x86
emulation. I use it to get the video back on my laptop (which has
radeon card), by calling this user level emulator using
usermodehelper call. I hope we will have x86 emulator sitting in a
standard place in userspace. That way we can use it in driver
restore and solve the S3 video restore problem in a more generic
way. 

We already have all this code completely separate from X and would 
release this as part of the Video Boot package for Linux. The kernel 
module is one part of it, but the code can be compiled as a stand alone 
user land program as well (SNAPBoot we call it right now). 

Regards,

---
Kendall Bennett
Chief Executive Officer
SciTech Software, Inc.
Phone: (530) 894 8400
http://www.scitechsoft.com

~ SciTech SNAP - The future of device driver technology! ~




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