1 files changed, 72 insertions, 0 deletions
diff --git a/src/import/chips/p9/procedures/hwp/memory/lib/dimm/ddr4/nvdimm_utils.H b/src/import/chips/p9/procedures/hwp/memory/lib/dimm/ddr4/nvdimm_utils.H
index 03c1af7a0..b434abc3b 100644
--- a/src/import/chips/p9/procedures/hwp/memory/lib/dimm/ddr4/nvdimm_utils.H
+++ b/src/import/chips/p9/procedures/hwp/memory/lib/dimm/ddr4/nvdimm_utils.H
@@ -22,3 +22,75 @@
 /* permissions and limitations under the License.                         */
 /*                                                                        */
 /* IBM_PROLOG_END_TAG                                                     */
+
+///
+/// @file nvdimm_utils.H
+/// @brief Subroutines to support nvdimm backup/restore process
+///
+// *HWP HWP Owner: Tsung Yeung <tyeung@us.ibm.com>
+// *HWP HWP Backup: Stephen Glancy <sglancy@us.ibm.com>
+// *HWP Team: Memory
+// *HWP Level: 3
+// *HWP Consumed by: FSP:HB
+
+#include <fapi2.H>
+#include <generic/memory/lib/utils/find.H>
+
+namespace mss
+{
+
+namespace nvdimm
+{
+
+///
+/// @brief Helper for self_refresh_exit().
+/// @tparam T the target type associated with this subroutine
+/// @param[in] i_target the target associated with this subroutine
+/// @return FAPI2_RC_SUCCESS iff setup was successful
+/// @note Uses memdiag to read the port to force CKE back to high.
+/// Stolen from mss_lab_memdiags.C
+///
+template< fapi2::TargetType T >
+fapi2::ReturnCode self_refresh_exit_helper( const fapi2::Target<T>& i_target );
+
+///
+/// @brief Disable refresh and put target into self-refresh
+/// @tparam T the target type associated with this subroutine
+/// @param[in] i_target the target associated with this subroutine
+/// @return FAPI2_RC_SUCCESS iff setup was successful
+///
+template< fapi2::TargetType T >
+fapi2::ReturnCode self_refresh_entry( const fapi2::Target<T>& i_target );
+
+///
+/// @brief Take the target out of self-refresh and restart refresh
+/// @tparam T the target type associated with this subroutine
+/// @param[in] i_target the target associated with this subroutine
+/// @return FAPI2_RC_SUCCESS iff setup was successful
+///
+template< fapi2::TargetType T >
+fapi2::ReturnCode self_refresh_exit( const fapi2::Target<T>& i_target );
+
+///
+/// @brief Latch write vref at per-dram basis
+/// @tparam T the target type associated with this subroutine
+/// @param[in] i_target the target associated with this subroutine
+/// @return FAPI2_RC_SUCCESS iff setup was successful
+///
+
+template< fapi2::TargetType T >
+fapi2::ReturnCode pda_vref_latch( const fapi2::Target<T>& i_target );
+
+///
+/// @brief Full post-restore transition for NVDIMM
+/// @tparam T the target type associated with this subroutine
+/// @param[in] i_target the target associated with this subroutine
+/// @return FAPI2_RC_SUCCESS iff setup was successful
+///
+
+template< fapi2::TargetType T >
+fapi2::ReturnCode post_restore_transition( const fapi2::Target<T>& i_target );
+
+}//ns nvdimm
+
+}//ns mss