On Thursday 28 November 2013 05:29 PM, Mark Brown wrote:
On Thu, Nov 28, 2013 at 04:38:27PM +0530, Sourav Poddar wrote:
On Thursday 28 November 2013 04:19 PM, Mark Brown wrote:
Removing the mapping isn't going to stop another context which has
obtained a handle on the map trying to look at the mapping.
hmm..so the 'memcpy' part should be made atomic.(if possible?).
Or holding the memory region should prevent normal SPI use (so any users
ought to drop the memory region when they don't need it).
hmm.ok i will unmap the memory region when not in use.
I'm still a bit surprised there's no DMA controllers for this...
Yes, but thats the truth :(
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