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Diffstat (limited to 'include/linux/libnvdimm.h')
-rw-r--r--include/linux/libnvdimm.h41
1 files changed, 16 insertions, 25 deletions
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index 01f251b6e36c..e772aae71843 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -25,8 +25,6 @@ struct badrange {
};
enum {
- /* when a dimm supports both PMEM and BLK access a label is required */
- NDD_ALIASING = 0,
/* unarmed memory devices may not persist writes */
NDD_UNARMED = 1,
/* locked memory devices should not be accessed */
@@ -35,10 +33,16 @@ enum {
NDD_SECURITY_OVERWRITE = 3,
/* tracking whether or not there is a pending device reference */
NDD_WORK_PENDING = 4,
- /* ignore / filter NSLABEL_FLAG_LOCAL for this DIMM, i.e. no aliasing */
- NDD_NOBLK = 5,
/* dimm supports namespace labels */
NDD_LABELING = 6,
+ /*
+ * dimm contents have changed requiring invalidation of CPU caches prior
+ * to activation of a region that includes this device
+ */
+ NDD_INCOHERENT = 7,
+
+ /* dimm provider wants synchronous registration by __nvdimm_create() */
+ NDD_REGISTER_SYNC = 8,
/* need to set a limit somewhere, but yes, this is likely overkill */
ND_IOCTL_MAX_BUFLEN = SZ_4M,
@@ -63,6 +67,9 @@ enum {
/* Platform provides asynchronous flush mechanism */
ND_REGION_ASYNC = 3,
+ /* Region was created by CXL subsystem */
+ ND_REGION_CXL = 4,
+
/* mark newly adjusted resources as requiring a label update */
DPA_RESOURCE_ADJUSTED = 1 << 0,
};
@@ -126,6 +133,7 @@ struct nd_region_desc {
int numa_node;
int target_node;
unsigned long flags;
+ int memregion;
struct device_node *of_node;
int (*flush)(struct nd_region *nd_region, struct bio *bio);
};
@@ -140,22 +148,6 @@ static inline void __iomem *devm_nvdimm_ioremap(struct device *dev,
}
struct nvdimm_bus;
-struct module;
-struct device;
-struct nd_blk_region;
-struct nd_blk_region_desc {
- int (*enable)(struct nvdimm_bus *nvdimm_bus, struct device *dev);
- int (*do_io)(struct nd_blk_region *ndbr, resource_size_t dpa,
- void *iobuf, u64 len, int rw);
- struct nd_region_desc ndr_desc;
-};
-
-static inline struct nd_blk_region_desc *to_blk_region_desc(
- struct nd_region_desc *ndr_desc)
-{
- return container_of(ndr_desc, struct nd_blk_region_desc, ndr_desc);
-
-}
/*
* Note that separate bits for locked + unlocked are defined so that
@@ -199,6 +191,8 @@ struct nvdimm_security_ops {
int (*overwrite)(struct nvdimm *nvdimm,
const struct nvdimm_key_data *key_data);
int (*query_overwrite)(struct nvdimm *nvdimm);
+ int (*disable_master)(struct nvdimm *nvdimm,
+ const struct nvdimm_key_data *key_data);
};
enum nvdimm_fwa_state {
@@ -258,7 +252,6 @@ struct nvdimm_bus *nvdimm_to_bus(struct nvdimm *nvdimm);
struct nvdimm *to_nvdimm(struct device *dev);
struct nd_region *to_nd_region(struct device *dev);
struct device *nd_region_dev(struct nd_region *nd_region);
-struct nd_blk_region *to_nd_blk_region(struct device *dev);
struct nvdimm_bus_descriptor *to_nd_desc(struct nvdimm_bus *nvdimm_bus);
struct device *to_nvdimm_bus_dev(struct nvdimm_bus *nvdimm_bus);
const char *nvdimm_name(struct nvdimm *nvdimm);
@@ -279,6 +272,8 @@ static inline struct nvdimm *nvdimm_create(struct nvdimm_bus *nvdimm_bus,
return __nvdimm_create(nvdimm_bus, provider_data, groups, flags,
cmd_mask, num_flush, flush_wpq, NULL, NULL, NULL);
}
+void nvdimm_delete(struct nvdimm *nvdimm);
+void nvdimm_region_delete(struct nd_region *nd_region);
const struct nd_cmd_desc *nd_cmd_dimm_desc(int cmd);
const struct nd_cmd_desc *nd_cmd_bus_desc(int cmd);
@@ -295,10 +290,6 @@ struct nd_region *nvdimm_blk_region_create(struct nvdimm_bus *nvdimm_bus,
struct nd_region *nvdimm_volatile_region_create(struct nvdimm_bus *nvdimm_bus,
struct nd_region_desc *ndr_desc);
void *nd_region_provider_data(struct nd_region *nd_region);
-void *nd_blk_region_provider_data(struct nd_blk_region *ndbr);
-void nd_blk_region_set_provider_data(struct nd_blk_region *ndbr, void *data);
-struct nvdimm *nd_blk_region_to_dimm(struct nd_blk_region *ndbr);
-unsigned long nd_blk_memremap_flags(struct nd_blk_region *ndbr);
unsigned int nd_region_acquire_lane(struct nd_region *nd_region);
void nd_region_release_lane(struct nd_region *nd_region, unsigned int lane);
u64 nd_fletcher64(void *addr, size_t len, bool le);