Allocating lots of DMA RAM?

[Jeff Garzik]

Hi all.  Is the following loop (from drivers/sound/i810_audio.c among
others) still the best way to allocate a large amount of DMA RAM for
audio?  ie. for audio devices that do not support scatter-gather.

Thanks,

	Jeff

	/* alloc as big a chunk as we can, FIXME: is this necessary ?? */
	for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
		if ((rawbuf = pci_alloc_consistent(state->card->pci_dev,
						   PAGE_SIZE << order,
						   &dmabuf->dma_handle)))
			break;
	if (!rawbuf)
		return -ENOMEM;