-------- Original-Nachricht -------- > Datum: Mon, 03 Mar 2008 09:56:09 +1100 > Von: Benjamin Herrenschmidt <[EMAIL PROTECTED]> > An: Gerhard Pircher <[EMAIL PROTECTED]> > CC: linuxppc-dev@ozlabs.org, [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL > PROTECTED] > Betreff: Re: [BUG/RFC/PATCH] drm: Fix for non-coherent DMA PowerPC
> Bah, I think I found the problem: > > +static inline void *drm_vmalloc_dma(unsigned long size) > +{ > +#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE) > + return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, > + PAGE_KERNEL | _PAGE_NO_CACHE); > +#else > + return vmalloc_32(size); > +#endif > +} > + > > Remove the GFP_HIGHMEM from the above. It looks like our cache > flushing isn't going to work for highmem, it would need some > kmap's for that. Yes, it looks like this was the problem. No kernel oops anymore. The machine locks up anyway (which is a well known hardware problem). It doesn't lock up with CPPIOMode=true, but probably only because the initialization of DRI fails with "BAD cp_mode (f0000000)!". Gerhard -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev