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powerpc: move device_to_mask() to dma-mapping.h
Move device_to_mask() to dma-mapping.h because we need to use it from outside dma_64.c in a later patch. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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2 changed files with 9 additions and 9 deletions
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@ -15,15 +15,6 @@
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* Generic iommu implementation
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*/
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static inline unsigned long device_to_mask(struct device *dev)
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{
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if (dev->dma_mask && *dev->dma_mask)
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return *dev->dma_mask;
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/* Assume devices without mask can take 32 bit addresses */
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return 0xfffffffful;
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}
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/* Allocates a contiguous real buffer and creates mappings over it.
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* Returns the virtual address of the buffer and sets dma_handle
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* to the dma address (mapping) of the first page.
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@ -45,6 +45,15 @@ extern void __dma_sync_page(struct page *page, unsigned long offset,
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#endif /* ! CONFIG_NOT_COHERENT_CACHE */
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#ifdef CONFIG_PPC64
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static inline unsigned long device_to_mask(struct device *dev)
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{
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if (dev->dma_mask && *dev->dma_mask)
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return *dev->dma_mask;
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/* Assume devices without mask can take 32 bit addresses */
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return 0xfffffffful;
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}
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/*
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* DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
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*/
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