diff options
Diffstat (limited to 'drivers/nvdimm/pmem.h')
| -rw-r--r-- | drivers/nvdimm/pmem.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h new file mode 100644 index 000000000000..b4ee4f71b4a1 --- /dev/null +++ b/drivers/nvdimm/pmem.h @@ -0,0 +1,24 @@ +#ifndef __NVDIMM_PMEM_H__ +#define __NVDIMM_PMEM_H__ +#include <linux/badblocks.h> +#include <linux/types.h> +#include <linux/pfn_t.h> +#include <linux/fs.h> + +long pmem_direct_access(struct block_device *bdev, sector_t sector, + void **kaddr, pfn_t *pfn, long size); +/* this definition is in it's own header for tools/testing/nvdimm to consume */ +struct pmem_device { + /* One contiguous memory region per device */ + phys_addr_t phys_addr; + /* when non-zero this device is hosting a 'pfn' instance */ + phys_addr_t data_offset; + u64 pfn_flags; + void *virt_addr; + /* immutable base size of the namespace */ + size_t size; + /* trim size when namespace capacity has been section aligned */ + u32 pfn_pad; + struct badblocks bb; +}; +#endif /* __NVDIMM_PMEM_H__ */ |