On Wed, Apr 25, 2018 at 07:15:34AM +0200, Christoph Hellwig wrote: > Define this symbol if the architecture either uses 64-bit pointers or the > PHYS_ADDR_T_64BIT is set. This covers 95% of the old arch magic. We only > need an additional select for Xen on ARM (why anyway?), and we now always > set ARCH_DMA_ADDR_T_64BIT on mips boards with 64-bit physical addressing > instead of only doing it when highmem is set. I think this should be fine. It only affects alchemy and Netlogic, and Netlogic supports highmem already. So for MIPS: Acked-by: James Hogan <jhogan@xxxxxxxxxx> Cheers James > diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig > index 985388078872..e10cc5c7be69 100644 > --- a/arch/mips/Kconfig > +++ b/arch/mips/Kconfig > @@ -1101,9 +1101,6 @@ config GPIO_TXX9 > config FW_CFE > bool > > -config ARCH_DMA_ADDR_T_64BIT > - def_bool (HIGHMEM && PHYS_ADDR_T_64BIT) || 64BIT > - > config ARCH_SUPPORTS_UPROBES > bool > diff --git a/lib/Kconfig b/lib/Kconfig > index ce9fa962d59b..1f12faf03819 100644 > --- a/lib/Kconfig > +++ b/lib/Kconfig > @@ -435,6 +435,9 @@ config NEED_SG_DMA_LENGTH > config NEED_DMA_MAP_STATE > bool > > +config ARCH_DMA_ADDR_T_64BIT > + def_bool 64BIT || PHYS_ADDR_T_64BIT > + > config IOMMU_HELPER > bool
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