On Fri, Oct 10, 2014 at 12:51:44PM +0100, Stefano Stabellini wrote: > Introduce a function to check whether a device is dma coherent. > > Signed-off-by: Stefano Stabellini <[email protected]> > CC: [email protected] > CC: [email protected] > CC: [email protected] > CC: [email protected] > --- > arch/arm/include/asm/dma-mapping.h | 6 ++++++ > arch/arm64/include/asm/dma-mapping.h | 5 +++++ > 2 files changed, 11 insertions(+) > > diff --git a/arch/arm/include/asm/dma-mapping.h > b/arch/arm/include/asm/dma-mapping.h > index c45b61a..bededbb 100644 > --- a/arch/arm/include/asm/dma-mapping.h > +++ b/arch/arm/include/asm/dma-mapping.h > @@ -126,6 +126,12 @@ static inline int set_arch_dma_coherent_ops(struct > device *dev) > set_dma_ops(dev, &arm_coherent_dma_ops); > return 0; > } > + > +static inline bool is_dma_coherent(struct device *dev) > +{ > + return (__generic_dma_ops(dev) == &arm_coherent_dma_ops); > +}
Hmm, what about the IOMMU ops? Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
