Messages in this thread | | | Date | Tue, 11 Oct 2016 09:38:06 -0700 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH 6/6] sparc64: Enable 64-bit DMA |
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Hi Tushar,
On Fri, Oct 07, 2016 at 01:09:15AM -0700, tndave wrote: > With change made by patch 6/6, dma_addr_t is always 64-bit, no matter if > device DMA mask is 32-bit (i.e. using existing IOMMU) or 64-bit (i.e > using ATU)
But only iff CONFIG_ARCH_ATU is set. Anyway, I'll wait for your patches to got in first and will then propose getting rid of CONFIG_ARCH_DMA_ADDR_T_64BIT separately.
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