Re: DMA API issues

[David Brownell]

Jeff Garzik wrote:

> 2) is unneeded, as many other drivers in this same situation simply use
> ioremap

But ioremap() only solves the problem of allocating virtual address
space to match this memory.  It doesn't solve the problem of then
allocating/freeing such memory through dma_alloc_coherent(), so that
the drivers that need to share access to that memory can do so.




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