Hi York,
On Wed, Jan 3, 2018 at 3:26 PM, Tom Rini trini@konsulko.com wrote:
On Wed, Jan 03, 2018 at 02:32:44PM -0200, Fabio Estevam wrote:
Hi Tom,
On Wed, Dec 20, 2017 at 8:08 PM, Clemens Gruber clemens.gruber@pqgruber.com wrote:
The blob_encap and blob_decap functions were not flushing the dcache before passing data to CAAM/DMA and not invalidating the dcache when getting data back. Therefore, blob encapsulation and decapsulation failed with errors like the following due to data cache incoherency: "40000006: DECO: desc idx 0: Invalid KEY command"
To ensure coherency, we allocate aligned memory to store the data passed to/from CAAM and flush/invalidate the memory regions. Blobs can now be encapsulated and decapsulated with the blob cmd as well as from board code by calling blob_encap and blob_decap directly.
Tested on an i.MX6Q board.
Signed-off-by: Clemens Gruber clemens.gruber@pqgruber.com
This bug fix patch seems like a good candidate for 2018.01.
Not sure who can pick it and apply it.
Tom, York? What do you guys think?
I'm fine with it coming in directly or via a PR.
Could you please help applying this one?
Thanks