On 3/23/2013 4:30 PM, Dan Carpenter wrote:
On Wed, Jan 30, 2013 at 03:36:48PM -0600, Steve Wise wrote:
I wonder, then, what the correct service is to get the cpu physical
address from a kernel virtual address returned from
dma_alloc_coherent()? I think this is correct as-is, since I think
dma_alloc_coherent() falls under the "directly mapped" addresses in
the virt_to_phys() prototype comment.
What do you think Roland?
In the end, we decided this was correct as-is?
I think the code is correct as-is.
I'm about to complain to the caif network people about the
dma_alloc_coherent() -> virt_to_phys() thing, but the truth is I
don't understand this stuff very well and I'm not sure when it's ok
or not.
regards,
dan carpenter
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