On Thursday 28 November 2013 04:19 PM, Mark Brown wrote:
On Thu, Nov 28, 2013 at 10:54:12AM +0530, Sourav Poddar wrote:
At the beginning of this api, I am doing a "disable memory mapped",
as becuase of
the code implemntation, if the control has reaches this api, memory
mapped is not
the desired operation. Then, at the end of this api after
"spi_finalize_current_message(master)", which indicated the current
transfer complete, I
issue a end of transfer command. Only after which, I enable memory
mapped mode again.
So, will the condition you mention above will hit.? Please help me
understand if i am
missing something?
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?).
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