[PATCH v2 04/10] dma-mapping: allow archs to optionally specify a ->map_pfn() operation

This is in support of enabling block device drivers to perform DMA to/from persistent memory which may not have a backing struct page entry. Signed-off-by: Dan Williams --- arch/Kconfig |3 +++ include/asm-generic/dma-mapping-common.h | 30

[PATCH v2 04/10] dma-mapping: allow archs to optionally specify a -map_pfn() operation

This is in support of enabling block device drivers to perform DMA to/from persistent memory which may not have a backing struct page entry. Signed-off-by: Dan Williams dan.j.willi...@intel.com --- arch/Kconfig |3 +++ include/asm-generic/dma-mapping-common.h |