[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [RFC PATCH v3 2/6] swiotlb: Add restricted DMA pool
On Wed, Jan 13, 2021 at 12:51:26PM +0100, Christoph Hellwig wrote: > On Wed, Jan 06, 2021 at 08:50:03AM +0100, Greg KH wrote: > > > --- a/include/linux/device.h > > > +++ b/include/linux/device.h > > > @@ -413,6 +413,7 @@ struct dev_links_info { > > > * @dma_pools: Dma pools (if dma'ble device). > > > * @dma_mem: Internal for coherent mem override. > > > * @cma_area: Contiguous memory area for dma allocations > > > + * @dma_io_tlb_mem: Internal for swiotlb io_tlb_mem override. > > > > Why does this have to be added here? Shouldn't the platform-specific > > code handle it instead? > > The whole code added here is pretty generic. What we need to eventually > do, though is to add a separate dma_device instead of adding more and more > bloat to struct device. I have no objections for that happening!
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