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The __pmem address space was meant to annotate codepaths that touch persistent memory and need to coordinate a call to wmb_pmem(). Now that wmb_pmem() is gone, there is little need to keep this annotation. Cc: Christoph Hellwig <hch@lst.de> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
25 lines
765 B
C
25 lines
765 B
C
#ifndef __NVDIMM_PMEM_H__
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#define __NVDIMM_PMEM_H__
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#include <linux/badblocks.h>
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#include <linux/types.h>
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#include <linux/pfn_t.h>
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#include <linux/fs.h>
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long pmem_direct_access(struct block_device *bdev, sector_t sector,
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void **kaddr, pfn_t *pfn, long size);
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/* this definition is in it's own header for tools/testing/nvdimm to consume */
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struct pmem_device {
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/* One contiguous memory region per device */
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phys_addr_t phys_addr;
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/* when non-zero this device is hosting a 'pfn' instance */
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phys_addr_t data_offset;
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u64 pfn_flags;
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void *virt_addr;
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/* immutable base size of the namespace */
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size_t size;
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/* trim size when namespace capacity has been section aligned */
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u32 pfn_pad;
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struct badblocks bb;
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};
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#endif /* __NVDIMM_PMEM_H__ */
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