Re: [PATCH 16/67] powerpc: rename dma_direct_ to dma_nommu_
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2018-01-02 09:45:38
Also in:
linux-alpha, linux-arch, linux-arm-kernel, linux-iommu, linux-mips, linux-s390, linux-sh, lkml, sparclinux
Christoph Hellwig [off-list ref] writes:
We want to use the dma_direct_ namespace for a generic implementation, so rename powerpc to the second best choice: dma_nommu_.
I'm not a fan of "nommu". Some of the users of direct ops *are* using an IOMMU, they're just setting up a 1:1 mapping once at init time, rather than mapping dynamically. Though I don't have a good idea for a better name, maybe "1to1", "linear", "premapped" ? cheers