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Diffstat (limited to 'drivers/nvdimm/nd.h')
-rw-r--r--drivers/nvdimm/nd.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index 8024a0ef86d3..0b78a8211f4a 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -52,10 +52,28 @@ struct nvdimm_drvdata {
struct nd_region_data {
int ns_count;
int ns_active;
- unsigned int flush_mask;
- void __iomem *flush_wpq[0][0];
+ unsigned int hints_shift;
+ void __iomem *flush_wpq[0];
};
+static inline void __iomem *ndrd_get_flush_wpq(struct nd_region_data *ndrd,
+ int dimm, int hint)
+{
+ unsigned int num = 1 << ndrd->hints_shift;
+ unsigned int mask = num - 1;
+
+ return ndrd->flush_wpq[dimm * num + (hint & mask)];
+}
+
+static inline void ndrd_set_flush_wpq(struct nd_region_data *ndrd, int dimm,
+ int hint, void __iomem *flush)
+{
+ unsigned int num = 1 << ndrd->hints_shift;
+ unsigned int mask = num - 1;
+
+ ndrd->flush_wpq[dimm * num + (hint & mask)] = flush;
+}
+
static inline struct nd_namespace_index *to_namespace_index(
struct nvdimm_drvdata *ndd, int i)
{