ALSA: hda: Use new non-cached allocation for non-snoop mode
Now the ALSA memory allocator helper supports the new non-cached pages, let's use the new type, SNDRV_DMA_TYPE_DEV_UC_SG, for HD-audio driver. This allows us to reduce lots of codes. As another positive side-effect by this patch, the long-standing issue with non-snoop mode playing in the non-mmap mode is fixed. The core memalloc helper does the proper pgprot setup for non-cached pages for vmap(), which was missing in the past. Reported-and-tested-by: Hans Hu <HansHu@zhaoxin.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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