1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NVDIMM_PMEM_H__
3 #define __NVDIMM_PMEM_H__
4 #include <linux/page-flags.h>
5 #include <linux/badblocks.h>
6 #include <linux/memremap.h>
7 #include <linux/types.h>
8 #include <linux/pfn_t.h>
13 /* this definition is in it's own header for tools/testing/nvdimm to consume */
15 /* One contiguous memory region per device */
16 phys_addr_t phys_addr;
17 /* when non-zero this device is hosting a 'pfn' instance */
18 phys_addr_t data_offset;
21 /* immutable base size of the namespace */
23 /* trim size when namespace capacity has been section aligned */
25 struct kernfs_node *bb_state;
27 struct dax_device *dax_dev;
29 struct dev_pagemap pgmap;
32 long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
33 long nr_pages, enum dax_access_mode mode, void **kaddr,
36 #ifdef CONFIG_MEMORY_FAILURE
37 static inline bool test_and_clear_pmem_poison(struct page *page)
39 return TestClearPageHWPoison(page);
42 static inline bool test_and_clear_pmem_poison(struct page *page)
47 #endif /* __NVDIMM_PMEM_H__ */