Hi all, this series has a few smaller fixes and cleanups for the powerpc DMA code.
The biggest changes are related to the not cache coherent DMA support, which as far as I can tell was not consistent in its cache maintainance operations. Also the AMCC ppc44x crypto driver looks like it was affected by that (or otherwise just odd) and used a helper internal to the powerpc DMA code to work around that fact. I've added Christian Lamparter who has been trying to beat that driver into shape in the last years for that reason.