[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 06, 2021 at 11:41:20AM +0800, Claire Chang wrote: > Add the initialization function to create restricted DMA pools from > matching reserved-memory nodes in the device tree. > > Signed-off-by: Claire Chang <tientzu@xxxxxxxxxxxx> > --- > include/linux/device.h | 4 ++ > include/linux/swiotlb.h | 7 +- > kernel/dma/Kconfig | 1 + > kernel/dma/swiotlb.c | 144 ++++++++++++++++++++++++++++++++++------ > 4 files changed, 131 insertions(+), 25 deletions(-) > > diff --git a/include/linux/device.h b/include/linux/device.h > index 89bb8b84173e..ca6f71ec8871 100644 > --- 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? thanks, greg k-h
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