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authorDan Williams <dan.j.williams@intel.com>2016-06-06 17:42:38 -0700
committerDan Williams <dan.j.williams@intel.com>2016-07-07 17:11:09 -0700
commit29b9aa0aa3837c93ecd804dd3ada39b8cc75607d (patch)
treec3ee3dbe22fb1ec4a71ff887f382b3eac815d4b3 /drivers/nvdimm/nd-core.h
parent81ed4e3670853e4cebad88aeffc0ba1d90d4d6ed (diff)
downloadlinux-29b9aa0aa3837c93ecd804dd3ada39b8cc75607d.tar.bz2
libnvdimm: introduce devm_nvdimm_memremap(), convert nfit_spa_map() users
In preparation for generically mapping flush hint addresses for both the BLK and PMEM use case, provide a generic / reference counted mapping api. Given the fact that a dimm may belong to multiple regions (PMEM and BLK), the flush hint addresses need to be held valid as long as any region associated with the dimm is active. This is similar to the existing BLK-region case where multiple BLK-regions may share an aperture mapping. Up-level this shared / reference-counted mapping capability from the nfit driver to a core nvdimm capability. This eliminates the need for the nd_blk_region.disable() callback. Note that the removal of nfit_spa_map() and related infrastructure is deferred to a later patch. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/nd-core.h')
-rw-r--r--drivers/nvdimm/nd-core.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index 284cdaa268cf..790b62cc81ed 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -31,6 +31,7 @@ struct nvdimm_bus {
struct device dev;
int id, probe_active;
struct list_head poison_list;
+ struct list_head mapping_list;
struct mutex reconfig_mutex;
};