Use dma_ops->get_required_mask() if provided, defaulting to
dma_get_requried_mask_from_max_pfn().
This is needed on systems (such as Xen PV guests) where the DMA
address and the physical address are not equal.
ARCH_HAS_DMA_GET_REQUIRED_MASK is defined in asm/device.h instead of
asm/dma-mapping.h
Use dma_ops->get_required_mask() if provided, defaulting to
dma_get_requried_mask_from_max_pfn().
This is needed on systems (such as Xen PV guests) where the DMA
address and the physical address are not equal.
ARCH_HAS_DMA_GET_REQUIRED_MASK is defined in asm/device.h instead of
asm/dma-mapping.h
Use dma_ops->get_required_mask() if provided, defaulting to
dma_get_requried_mask_from_max_pfn().
This is needed on systems (such as Xen PV guests) where the DMA
address and the physical address are not equal.
ARCH_HAS_DMA_GET_REQUIRED_MASK is defined in asm/device.h instead of
asm/dma-mapping.h
