Re: [Linux-fbdev-devel] [patch] radeonfb: FB_WAITFORVSYNC implementation

[Benjamin H. <be...@ke...>]

> When we get merged my thought was to let fbdev catch the vsync IRQ and
> then chain into DRM. In that model fbdev becomes the mini-driver.
> Right now I don't think there is any other solution than merging
> fbdev/DRM that doesn't result in some kind of dead on VT switch
> scenario.

A VT switch should stop all asynchronous activity (interrupt, DRM,
etc...). X already stops the DRM on switch-out, this could be enforced
by the kernel.

> Also, I have the hotplug monitor change interrupt hookup in my local
> code but I'm waiting for BenH to finish his dual head radeonfb first.
> He has said it will probably be ready this week, patches are starting
> to appear on lkml from him.

Those are just fixes to the existing code base. The new one isn't ready
yet. I'll give it one more week unfortunately, I've been pressured by
other issues those past few days.

Ben.