cxl region information preserved from LSA need to be exported so as to
use by cxl driver for cxl region re-creation
Signed-off-by: Neeraj Kumar <s.neeraj@samsung.com>
---
drivers/nvdimm/dimm_devs.c | 18 ++++++++++++++++++
include/linux/libnvdimm.h | 2 ++
2 files changed, 20 insertions(+)
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index 6149770c1b27..dece150580c4 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -280,6 +280,24 @@ void *nvdimm_provider_data(struct nvdimm *nvdimm)
}
EXPORT_SYMBOL_GPL(nvdimm_provider_data);
+bool nvdimm_has_cxl_region(struct nvdimm *nvdimm)
+{
+ if (nvdimm)
+ return nvdimm->is_region_label;
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(nvdimm_has_cxl_region);
+
+void *nvdimm_get_cxl_region_param(struct nvdimm *nvdimm)
+{
+ if (nvdimm)
+ return &nvdimm->cxl_region_params;
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(nvdimm_get_cxl_region_param);
+
static ssize_t commands_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index cdabb43a8a7f..9a5d17c4b89b 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -325,6 +325,8 @@ int nvdimm_in_overwrite(struct nvdimm *nvdimm);
bool is_nvdimm_sync(struct nd_region *nd_region);
int nd_region_label_update(struct nd_region *nd_region);
int nd_region_label_delete(struct nd_region *nd_region);
+bool nvdimm_has_cxl_region(struct nvdimm *nvdimm);
+void *nvdimm_get_cxl_region_param(struct nvdimm *nvdimm);
static inline int nvdimm_ctl(struct nvdimm *nvdimm, unsigned int cmd, void *buf,
unsigned int buf_len, int *cmd_rc)
--
2.34.1