On Friday, November 28, 2008 10:24 am Keith Packard wrote: > On Fri, 2008-11-28 at 17:13 +0800, Li Peng wrote: > > iir = I915_READ(IIR); > > > > + if (iir == 0) > > + return IRQ_NONE; > > + > > We can't do that -- iir may be zero while there are still pipe > interrupts pending, due to the ordering between pipe stat writes and iir > writes. However, it looks like we need to ensure that the pipe stat > values are set before enabling interrupts.
I think this particular problem should go away once your change to init the vblank structures at load time makes it upstream, since it'll be safe to handle a vblank event at that point. -- Jesse Barnes, Intel Open Source Technology Center ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
