Messages in this thread | | | Date | Thu, 28 Nov 2019 08:51:53 +0100 | From | "" <> | Subject | Re: [PATCH 2/2] dma-mapping: force unencryped devices are always addressing limited |
| |
On Wed, Nov 27, 2019 at 06:22:57PM +0000, Thomas Hellstrom wrote: > > bool dma_addressing_limited(struct device *dev) > > { > > + if (force_dma_unencrypted(dev)) > > + return true; > > return min_not_zero(dma_get_mask(dev), dev->bus_dma_limit) < > > dma_get_required_mask(dev); > > } > > Any chance to have the case > > (swiotlb_force == SWIOTLB_FORCE) > > also included?
We have a hard time handling that in generic code. Do we have any good use case for SWIOTLB_FORCE not that we have force_dma_unencrypted? I'd love to be able to get rid of it..
| |