pmem.h 847 字节
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#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>

/* 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;
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	void			*virt_addr;
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	/* immutable base size of the namespace */
	size_t			size;
	/* trim size when namespace capacity has been section aligned */
	u32			pfn_pad;
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	struct kernfs_node	*bb_state;
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	struct badblocks	bb;
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	struct dax_device	*dax_dev;
	struct gendisk		*disk;
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};
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long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
		long nr_pages, void **kaddr, pfn_t *pfn);
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#endif /* __NVDIMM_PMEM_H__ */