On Sun, 28 Oct 2001, Manuel Teira wrote: > El Dom 28 Oct 2001 19:17, Leif Delgass escribió: > > <snip> > > > OK. I did test it out doing it in the way I suggested, but I'm still > > getting a lockup. I was thinking of compiling with the debugging macros > > turned on to get a better idea of where the problem is. Since the problem > > doesn't seem to happen with gears, I wonder if there's something in the > > mesa code that isn't locking properly. > > Have in mind that the Mesa layer is now writing directly to the registers. > Are this direct writes locked in all the Mesa lib? For example, and at a > first glance, the function: > > mach64UploadHwStateLocked @ mach64_ioctl.c > > is making WRITE access to the card without calling LOCK_HARDWARE. Perhaps > this funcion is called from another place were the lock takes place, I don't > know.
In theory, it should only be called after locking, which is why Locked is in the function name, I think (and from what I can tell from a quick scan of the code, it is being called after locking). I tried testing the changes again and remembered to look at the X log when I rebooted before starting X again. I got a series (19) of "DRIUnlock called when not locked" messages. I'm going to try to trace all the DRILock/Unlock calls and see if I can track this down. > Anyway, when the DMA work takes shape on the Mesa layer, the places > where the lock is needed will be less than now (I think), only when the DMA > buffers are flushed via a BusMaster operation. > So, I think that we must not worry about the interlock while the DMA work is > not finished. > > Frank, how is it going? Any news? > > Well, I've just commited the changes to the CVS. The Sunday is finishing and > a new week of hard work is beginning :-( . At least here in Spain the week is > shorter (it's only 4 work days). ;-) Nice. Of course, I'm currently not working so I have lots of spare time to waste on this. ;) -- Leif Delgass _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
