Re: [PATCH 1/5] iommu: Replace uses of IOMMU_CAP_CACHE_COHERENCY with dev_is_dma_coherent()

Christoph Hellwig
2022-04-06T16:31:25Z

On Wed, Apr 06, 2022 at 09:07:30AM -0300, Jason Gunthorpe wrote:
> Didn't see it
>
> I'll move dev_is_dma_coherent to device.h along with
> device_iommu_mapped() and others then

No. It it is internal for a reason. It also doesn't actually work
outside of the dma core. E.g. for non-swiotlb ARM configs it will
not actually work.