Takashi Iwai cc6a8acdee ALSA: Fix SG-buffer DMA with non-coherent architectures ...

Using SG-buffers with dma_alloc_coherent() is often very inefficient
on non-coherent architectures because a tracking record could be
allocated in addition for each dma_alloc_coherent() call.
Instead, simply disable SG-buffers but just allocate normal continuous
buffers on non-supported (currently all but x86) architectures.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2009-07-08 14:20:20 +02:00

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