1 #ifndef __NVDIMM_PMEM_H__ 2 #define __NVDIMM_PMEM_H__ 3 #include <linux/badblocks.h> 4 #include <linux/types.h> 5 #include <linux/pfn_t.h> 6 #include <linux/fs.h> 7 8 long pmem_direct_access(struct block_device *bdev, sector_t sector, 9 void **kaddr, pfn_t *pfn, long size); 10 /* this definition is in it's own header for tools/testing/nvdimm to consume */ 11 struct pmem_device { 12 /* One contiguous memory region per device */ 13 phys_addr_t phys_addr; 14 /* when non-zero this device is hosting a 'pfn' instance */ 15 phys_addr_t data_offset; 16 u64 pfn_flags; 17 void *virt_addr; 18 /* immutable base size of the namespace */ 19 size_t size; 20 /* trim size when namespace capacity has been section aligned */ 21 u32 pfn_pad; 22 struct badblocks bb; 23 }; 24 #endif /* __NVDIMM_PMEM_H__ */ 25