of: address: always use dma_default_coherent for default coherency
As for now all arches have dma_default_coherent reflecting default DMA coherency for of devices, so there is no need to have a standalone config option. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Christoph Hellwig <hch@lst.de>
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@ -113,6 +113,7 @@ config PPC
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#
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select ARCH_32BIT_OFF_T if PPC32
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select ARCH_DISABLE_KASAN_INLINE if PPC_RADIX_MMU
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select ARCH_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE
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select ARCH_ENABLE_MEMORY_HOTPLUG
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select ARCH_ENABLE_MEMORY_HOTREMOVE
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select ARCH_HAS_COPY_MC if PPC64
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@ -272,7 +273,6 @@ config PPC
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select NEED_PER_CPU_PAGE_FIRST_CHUNK if PPC64
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select NEED_SG_DMA_LENGTH
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select OF
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select OF_DMA_DEFAULT_COHERENT if !NOT_COHERENT_CACHE
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select OF_EARLY_FLATTREE
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select OLD_SIGACTION if PPC32
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select OLD_SIGSUSPEND
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@ -12,6 +12,7 @@ config 32BIT
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config RISCV
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def_bool y
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select ARCH_DMA_DEFAULT_COHERENT
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select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
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select ARCH_ENABLE_SPLIT_PMD_PTLOCK if PGTABLE_LEVELS > 2
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select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
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@ -121,7 +122,6 @@ config RISCV
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select MODULES_USE_ELF_RELA if MODULES
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select MODULE_SECTIONS if MODULES
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select OF
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select OF_DMA_DEFAULT_COHERENT
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select OF_EARLY_FLATTREE
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select OF_IRQ
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select PCI_DOMAINS_GENERIC if PCI
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@ -102,8 +102,4 @@ config OF_OVERLAY
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config OF_NUMA
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bool
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config OF_DMA_DEFAULT_COHERENT
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# arches should select this if DMA is coherent by default for OF devices
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bool
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endif # OF
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@ -1103,7 +1103,7 @@ phys_addr_t __init of_dma_get_max_cpu_address(struct device_node *np)
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bool of_dma_is_coherent(struct device_node *np)
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{
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struct device_node *node;
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bool is_coherent = IS_ENABLED(CONFIG_OF_DMA_DEFAULT_COHERENT);
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bool is_coherent = dma_default_coherent;
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node = of_node_get(np);
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