include/linux/nd.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
41  * struct nvdimm_pmu - data structure for nvdimm perf driver
44  * @cpu: designated cpu for counter access.
45  * @node: node for cpu hotplug notifier link.
46  * @cpuhp_state: state for cpu hotplug notification.
47  * @arch_cpumask: cpumask to get designated cpu for counter access.
52 	int cpu;  member
72 	return -ENXIO;  in register_nvdimm_pmu()
94  * struct nd_namespace_common - core infrastructure of a namespace
99  * @rw_bytes: access the raw namespace capacity with byte-aligned transfers
106 	int (*rw_bytes)(struct nd_namespace_common *, resource_size_t offset,
116  * struct nd_namespace_io - device representation of a persistent memory range
132  * struct nd_namespace_pmem - namespace device for dimm-backed interleaved memory
134  * @lbasize: logical sector size for the namespace in block-device-mode
160  * nvdimm_read_bytes() - synchronously read bytes from an nvdimm namespace
162  * @offset: namespace-relative starting offset
166  * @buf is up-to-date upon return from this routine.
169 		resource_size_t offset, void *buf, size_t size,  in nvdimm_read_bytes()  argument
172 	return ndns->rw_bytes(ndns, offset, buf, size, READ, flags);  in nvdimm_read_bytes()
176  * nvdimm_write_bytes() - synchronously write bytes to an nvdimm namespace
178  * @offset: namespace-relative starting offset
183  * the @ndns, the contents of @buf may be in cpu cache, platform buffers,
188 		resource_size_t offset, void *buf, size_t size,  in nvdimm_write_bytes()  argument
191 	return ndns->rw_bytes(ndns, offset, buf, size, WRITE, flags);  in nvdimm_write_bytes()
204 	driver_unregister(&drv->drv);  in nd_driver_unregister()