suspend graphics card - ATI

[Alex Deucher]

2012/4/4 Balasubramanian S <sparani at gmail.com>:
> Hello Mike, I am looking for the implementation details. Could you please
> let m know where can I find them. My understanding on suspend is that all
> the ongoing I/O request needs to be stopped and new I/O request should not
> be processed. Correct me if I am wrong.
>

Take a look at the kernel source:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=tree;f=drivers/gpu/drm/radeon;h=7ba043b079bdbbcbc1a06a761daecae0745ef9e8;hb=HEAD
The main suspend and resume entry points are in radeon_device.c
(radeon_suspend_kms() and radeon_resume_kms()).

Alex

> Thanks, -Bala S
>
> 2012/4/3 Michel Dänzer <michel at daenzer.net>
>>
>> On Die, 2012-04-03 at 09:30 +0530, Balasubramanian S wrote:
>> > Which talks about the suspend and resume of graphics card, which will
>> > reduce the shutdown time during the reboot. I would like to know if
>> > this changes are made and submitted in xrog.
>>
>> Yes, suspend/resume generally works with current X and kernel drivers.
>>
>> --
>> Earthling Michel Dänzer           |                   http://www.amd.com
>> Libre software enthusiast         |          Debian, X and DRI developer
>
>
>
> _______________________________________________
> xorg-driver-ati mailing list
> xorg-driver-ati at lists.x.org
> http://lists.x.org/mailman/listinfo/xorg-driver-ati
>