PowerPC equivalent to dma_mmap_writecombine()?

Timur Tabi timur at freescale.com
Fri Jul 6 02:41:07 EST 2007

I'm porting a driver from ARM to PowerPC, and I came across this function:

static int at91_pcm_mmap(struct snd_pcm_substream *substream,
	struct vm_area_struct *vma)
	struct snd_pcm_runtime *runtime = substream->runtime;

	return dma_mmap_writecombine(substream->pcm->card->dev, vma,

There are no dma_mmap_x() functions in arch/powerpc.  Can someone tell me what the powerpc 
equivalent to dma_mmap_writecombine() is?

Timur Tabi
Linux Kernel Developer @ Freescale

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