[alsa-devel] [PATCH v2 2/2] conf: topology: Generate Private data binary blobs

Koul, Vinod vinod.koul at intel.com
Wed Apr 6 15:03:25 CEST 2016


On Tue, 2016-04-05 at 14:24 -0700, Mark Brown wrote:
> On Tue, Apr 05, 2016 at 10:10:48PM +0200, Takashi Iwai wrote:
> 
> > OK.  But now I noticed another pitfall.
> > The topology firmware is endian-sensitive, and the code to generate
> > is
> > so, too.  Thus it can't work for big-endian architectures.

This code is not intended to work on big-endian ones :). We will add
__lexx notations on these.

> The firmware side of this needs to be fixed at the ABI level I think,
> that's definitely an oversight - thanks for spotting it!  We have
> platforms which can switch at boot time between big and little endian 
> so an unfixed endinanness is not going to be usable there.

The topology ABI has been defined as little-endian. The driver needs to
do conversion to machine type and use data from topology.

-- 
~Vinod


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