active l4()P@ہ- 0File not found. 7l4()P@ۂj@- 0a4()P@ ƀ-  qʾ/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright(c) 2013-2015 Intel Corporation. All rights reserved. */ #ifndef __LINUX_ND_H__ #define __LINUX_ND_H__ #include #include #include #include #include enum nvdimm_event { NVDIMM_REVALIDATE_POISON, NVDIMM_REVALIDATE_REGION, }; enum nvdimm_claim_class { NVDIMM_CCLASS_NONE, NVDIMM_CCLASS_BTT, NVDIMM_CCLASS_BTT2, NVDIMM_CCLASS_PFN, NVDIMM_CCLASS_DAX, NVDIMM_CCLASS_UNKNOWN, }; #define NVDIMM_EVENT_VAR(_id) event_attr_##_id #define NVDIMM_EVENT_PTR(_id) (&event_attr_##_id.attr.attr) #define NVDIMM_EVENT_ATTR(_name, _id) \ PMU_EVENT_ATTR(_name, NVDIMM_EVENT_VAR(_id), _id, \ nvdimm_events_sysfs_show) /* Event attribute array index */ #define NVDIMM_PMU_FORMAT_ATTR 0 #define NVDIMM_PMU_EVENT_ATTR 1 #define NVDIMM_PMU_CPUMASK_ATTR 2 #define NVDIMM_PMU_NULL_ATTR 3 /** * struct nvdimm_pmu - data structure for nvdimm perf driver * @pmu: pmu data structure for nvdimm performance stats. * @dev: nvdimm device pointer. * @cpu: designated cpu for counter access. * @node: node for cpu hotplug notifier link. * @cpuhp_state: state for cpu hotplug notification. * @arch_cpumask: cpumask to get designated cpu for counter access. */ struct nvdimm_pmu { struct pmu pmu; struct device *dev; int cpu; struct hlist_node node; enum cpuhp_state cpuhp_state; /* cpumask provided by arch/platform specific code */ struct cpumask arch_cpumask; }; struct platform_device; #ifdef CONFIG_PERF_EVENTS extern ssize_t nvdimm_events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page); int register_nvdimm_pmu(struct nvdimm_pmu *nvdimm, struct platform_device *pdev); void unregister_nvdimm_pmu(struct nvdimm_pmu *nd_pmu); #else static inline int register_nvdimm_pmu(struct nvdimm_pmu *nvdimm, struct platform_device *pdev) { return -ENXIO; } static inline void unregister_nvdimm_pmu(struct nvdimm_pmu *nd_pmu) { } #endif struct nd_device_driver { struct device_driver drv; unsigned long type; int (*probe)(struct device *dev); void (*remove)(struct device *dev); void (*shutdown)(struct device *dev); void (*notify)(struct device *dev, enum nvdimm_event event); }; #define to_nd_device_driver(__drv) container_of_const(__drv, struct nd_device_driver, drv) /** * struct nd_namespace_common - core infrastructure of a namespace * @force_raw: ignore other personalities for the namespace (e.g. btt) * @dev: device model node * @claim: when set a another personality has taken ownership of the namespace * @claim_class: restrict claim type to a given class * @rw_bytes: access the raw namespace capacity with byte-aligned transfers */ struct nd_namespace_common { int force_raw; struct device dev; struct device *claim; enum nvdimm_claim_class claim_class; int (*rw_bytes)(struct nd_namespace_common *, resource_size_t offset, void *buf, size_t size, int rw, unsigned long flags); }; static inline struct nd_namespace_common *to_ndns(struct device *dev) { return container_of(dev, struct nd_namespace_common, dev); } /** * struct nd_namespace_io - device representation of a persistent memory range * @dev: namespace device created by the nd region driver * @res: struct resource conversion of a NFIT SPA table * @size: cached resource_size(@res) for fast path size checks * @addr: virtual address to access the namespace range * @bb: badblocks list for the namespace range */ struct nd_namespace_io { struct nd_namespace_common common; struct resource res; resource_size_t size; void *addr; struct badblocks bb; }; /** * struct nd_namespace_pmem - namespace device for dimm-backed interleaved memory * @nsio: device and system physical address range to drive * @lbasize: logical sector size for the namespace in block-device-mode * @alt_name: namespace name supplied in the dim