Re: Discussion about iopa()

On Feb 9, 2007, at 5:10 PM, Timur Tabi wrote:

Kumar Gala wrote:

quoted

It doesn't seem like it's that big of a change.  I'd rather the  
code clearly do different things for MURAM vs system memory for  
ALL accesses.

Why?  MURAM acts like RAM, it just needs to be mapped first.

It does from a coherence point of view, but not from an allocation  
mechanism.

We should fix it so the driver just has to do dma_alloc_coherent,  
dma_free_coherent, and dma_map_*/dma_unmap_*

- k