Hi, Ralf & Takashi On Tue, 2010-05-11 at 19:48 +0100, Ralf Baechle wrote: > On Wed, Apr 14, 2010 at 05:46:13PM +0200, Takashi Iwai wrote: > > > But, I remember vaguely that calling pgprot_noncached() > > unconditionally is dangerous. It should be checked somehow, e.g. via > > platform_device_is_coherent(). And, this found only in > > dma-coherence.h, and adding it to pcm_native.c would become messy like > > below... > > > > So, it'd be really better to add dma_mmap_coherent(), indeed. > > We agreed that this was only meant as a stop gap meassure. As such I do > agree with either of > > http://patchwork.linux-mips.org/patch/1117/ > http://patchwork.linux-mips.org/patch/1118/ > > Wu has tested the 1117 patch so that might make it preferable especially > for 2.6.34 if we should go for that. > Just tested 1118, it works too ;) Regards, Wu Zhangjin
