(In reply to comment #75)
> We don't need to force fullscreen to cause us to loose vblank interrupts
> whilst the processor is asleep (and so render very slowly).
Oh right. Not sure where I got the idea that we wouldn't use vblank irqs unless fullscreen.
After thinking about this for a while I started to question why we're frobbing the AGPBUSY bit all the time. It won't force an exit from C3 unless there's a pending interrupt, so we should just be able to leave it on all the time.
I pushed that idea here:
git://gitorious.org/vsyrjala/linux.git agpbusy2
I guess the chances of it working are slim, but migth as well try.
(In reply to comment #75)
> We don't need to force fullscreen to cause us to loose vblank interrupts
> whilst the processor is asleep (and so render very slowly).
Oh right. Not sure where I got the idea that we wouldn't use vblank irqs unless fullscreen.
After thinking about this for a while I started to question why we're frobbing the AGPBUSY bit all the time. It won't force an exit from C3 unless there's a pending interrupt, so we should just be able to leave it on all the time.
I pushed that idea here: .org/vsyrjala/ linux.git agpbusy2
git://gitorious
I guess the chances of it working are slim, but migth as well try.