Implement p9_mss_throttle_mem

    Scomming the runtime throttle values into the register

Change-Id: Ifc1b21e64dc7fb2a0080d723c78a10d715d79ede
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/30736
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Michael D. Pardeik <pardeik@us.ibm.com>
Reviewed-by: Louis Stermole <stermole@us.ibm.com>
Reviewed-by: Brian R. Silver <bsilver@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/31932
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>

3 files changed, 72 insertions, 17 deletions

diff --git a/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.C b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.C
index 608b7767a..e1c27e4b3 100644
--- a/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.C
+++ b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.C
@@ -27,15 +27,15 @@
 /// @file p9_mss_throttle_mem.C
 /// @brief Write the runtime memory throttle settings from attributes to scom registers
 ///
-// *HWP HWP Owner: Andre Marin <aamarin@us.ibm.com>
+// *HWP HWP Owner: Jacob Harvey <jlharvey@us.ibm.com>
 // *HWP HWP Backup: Brian Silver <bsilver@us.ibm.com>
 // *HWP Team: Memory
-// *HWP Level: 1
-// *HWP Consumed by: FSP:HB
+// *HWP Level: 2
+// *HWP Consumed by: Cronus
 
 #include <fapi2.H>
-#include <p9_mss_thermal_throttle_mem.H>
-
+#include <p9_mss_throttle_mem.H>
+#include <mss.H>
 using fapi2::TARGET_TYPE_MCS;
 
 extern "C"
@@ -45,12 +45,37 @@ extern "C"
 /// @brief Write the runtime memory throttle settings from attributes to scom registers
 /// @param[in] i_target the controller target
 /// @return FAPI2_RC_SUCCESS iff ok
+/// @note overwriting the safemem_throttle values
 ///
     fapi2::ReturnCode p9_mss_throttle_mem( const fapi2::Target<TARGET_TYPE_MCS>& i_target )
     {
         FAPI_INF("Start throttle mem");
-        FAPI_INF("End throttle mem");
 
+        for (const auto& l_mca : mss::find_targets<fapi2::TARGET_TYPE_MCA> (i_target))
+        {
+            uint32_t l_runtime_port = 0;
+            uint32_t l_runtime_slot = 0;
+            uint32_t l_throttle_denominator = 0;
+
+            FAPI_TRY( mss::mem_m_dram_clocks( l_mca, l_throttle_denominator) );
+            FAPI_TRY( mss::runtime_mem_throttled_n_commands_per_port(l_mca, l_runtime_port));
+            FAPI_TRY( mss::runtime_mem_throttled_n_commands_per_slot(l_mca, l_runtime_slot));
+
+            fapi2::buffer<uint64_t> l_data;
+            FAPI_TRY(mss::getScom(l_mca, MCA_MBA_FARB3Q, l_data));
+
+            l_data.insertFromRight<MCA_MBA_FARB3Q_CFG_NM_N_PER_SLOT, MCA_MBA_FARB3Q_CFG_NM_N_PER_SLOT_LEN>(l_runtime_slot);
+            l_data.insertFromRight<MCA_MBA_FARB3Q_CFG_NM_N_PER_PORT, MCA_MBA_FARB3Q_CFG_NM_N_PER_PORT_LEN>(l_runtime_port);
+
+            FAPI_TRY( mss::putScom(l_mca, MCA_MBA_FARB3Q, l_data) );
+
+        }
+
+        FAPI_INF("End throttle mem");
         return fapi2::FAPI2_RC_SUCCESS;
+
+    fapi_try_exit:
+        FAPI_ERR("Couldn't finish mss_throttle_mem");
+        return fapi2::current_err;
     }
-}
+} // extern "C"
diff --git a/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.H b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.H
index 858925b2d..c9061ea8c 100644
--- a/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.H
+++ b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.H
@@ -22,17 +22,16 @@
 /* permissions and limitations under the License.                         */
 /*                                                                        */
 /* IBM_PROLOG_END_TAG                                                     */
-
 ///
 /// @file p9_mss_throttle_mem.H
 /// @brief Write the runtime memory throttle settings from attributes to scom registers
 ///
-// *HWP HWP Owner: Andre Marin <aamarin@us.ibm.com>
+// *HWP HWP Owner: Jacob Harvey <jlharvey@us.ibm.com>
 // *HWP HWP Backup: Brian Silver <bsilver@us.ibm.com>
 // *HWP Team: Memory
-// *HWP Level: 1
-// *HWP Consumed by: FSP:HB
-
+// *HWP Level: 2
+// *HWP Consumed by: Cronus
+//
 #ifndef __P9_MSS_THROTTLE_MEM__
 #define __P9_MSS_THROTTLE_MEM__
 
@@ -42,12 +41,14 @@ typedef fapi2::ReturnCode (*p9_mss_throttle_mem_FP_t) (const fapi2::Target<fapi2
 
 extern "C"
 {
-///
-/// @brief Write the runtime memory throttle settings from attributes to scom registers
-/// @param[in] i_target the controller target
-/// @return FAPI2_RC_SUCCESS iff ok
-///
+    ///
+    /// @brief Write the runtime memory throttle settings from attributes to scom registers
+    /// @param[in] i_target the controller target
+    /// @return FAPI2_RC_SUCCESS iff ok
+    /// @note overwriting the safemem_throttle values
+    ///
     fapi2::ReturnCode p9_mss_throttle_mem( const fapi2::Target<fapi2::TARGET_TYPE_MCS>& i_target );
+
 }
 
 #endif
diff --git a/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.mk b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.mk
new file mode 100644
index 000000000..79db1aa15
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.mk
@@ -0,0 +1,29 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/import/chips/p9/procedures/hwp/memory/p9_mss_throttle_mem.mk $
+#
+# OpenPOWER HostBoot Project
+#
+# Contributors Listed Below - COPYRIGHT 2015,2016
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+-include 00common.mk
+
+PROCEDURE=p9_mss_throttle_mem
+$(eval $(call ADD_MEMORY_INCDIRS,$(PROCEDURE)))
+$(call BUILD_PROCEDURE)