From 3a4c6f0b1540811110a59112b4c83f55c229728c Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Sat, 5 Jul 2008 05:05:45 +1000 Subject: 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 Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt --- include/asm-powerpc/dma-mapping.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/asm-powerpc') diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h index de1395023cb..74c54978098 100644 --- a/include/asm-powerpc/dma-mapping.h +++ b/include/asm-powerpc/dma-mapping.h @@ -45,6 +45,15 @@ extern void __dma_sync_page(struct page *page, unsigned long offset, #endif /* ! CONFIG_NOT_COHERENT_CACHE */ #ifdef CONFIG_PPC64 + +static inline unsigned long device_to_mask(struct device *dev) +{ + if (dev->dma_mask && *dev->dma_mask) + return *dev->dma_mask; + /* Assume devices without mask can take 32 bit addresses */ + return 0xfffffffful; +} + /* * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO */ -- cgit v1.2.3