-------- Original-Nachricht -------- Datum: Thu, 29 Jun 2006 11:27:15 +0200 Von: Takashi Iwai <tiwai@xxxxxxx> An: Gerhard Pircher <gerhard_pircher@xxxxxxx> Betreff: Re: RFC: dma_mmap_coherent() for powerpc/ppc architecture and ALSA? > At Wed, 28 Jun 2006 22:27:53 +0200, > Gerhard Pircher wrote: > > > > Hi, > > > > It took a little bit longer to integrate the patch, as I didn't figure > out first how to implement the __dma_mmap_coherent() function for PPC > systems with CONFIG_NOT_COHERENT_CACHE defined. :) > > > > Unfortunately my system still crashes within snd_pcm_mmap_data_nopage() > > (sound/core/pcm_native.c), as you can see below. I guess it tries to > remap > > a DMA buffer allocated by the not cache coherent DMA memory allocation > > function in arch/ppc/kernel/dma-mapping.c. > > Strange, nopage will be never called if you apply my patch and modify > to use dma_mmap_coherent(). > > > Takashi > That's indeed strange! I'm sure that the new code is called by the sound drivers. Should snd_pcm_mmap_data_nopage() not be used at all anymore, or are there any cases that could still trigger a call of snd_pcm_mmap_data_nopage()? Gerhard -- Der GMX SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! Ideal für Modem und ISDN: http://www.gmx.net/de/go/smartsurfer Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
