question on "powerpc/pseries/dma: Allow SWIOTLB"

[Christoph Hellwig]

On Sat, Jul 20, 2019 at 09:22:49PM +1000, Alexey Kardashevskiy wrote:
> 
> 
> On 19/07/2019 22:25, Christoph Hellwig wrote:
> > On Fri, Jul 19, 2019 at 06:23:59PM +1000, Alexey Kardashevskiy wrote:
> >> It is getting there and I still do not see why "swiotlb=force" should not
> >> work if chosed in the cmdline.
> > 
> > Ok, makes sense.  But that means we also have the issue in a few
> > other places..
> 
> Hmm, where? I got broadcom ethernet working with this.

In all the other IOMMU drivers that conditionally forward to the dma
direct ops.  So it shouldn't affect powerpc.