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Diffstat (limited to 'arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h')
-rw-r--r--arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 9110988..138edf6 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -61,6 +61,14 @@ static inline void plat_post_dma_flush(struct device *dev)
{
}
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+ if (!dev->dma_mask)
+ return false;
+
+ return addr + size - 1 <= *dev->dma_mask;
+}
+
dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
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