UV Support: HWP inits runtime wakeup mode for each functional core.

Commit initializes CPMMR[59] with 1 if SMF is not enabled otherwise
with 0. This bit is read by CME in STOP 4/5 exit path. Based on the
bit value, sets the runtime wakeup mode for core in thread scratch
register.

Change-Id: If339c62e2e2bb504b5bf8e6b5e864d6ca6b4dc75
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/64119
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/64234
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>

3 files changed, 177 insertions, 0 deletions

diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.C b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.C
new file mode 100644
index 000000000..6f2fdb0f4
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.C
@@ -0,0 +1,92 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.C $ */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2018                             */
+/* [+] 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                                                     */
+///
+/// @file   p9_setup_runtime_wakeup_mode.H
+/// @brief  describes HWP interface that configures runtime wakeup mode of core.
+///
+/// *HWP HWP Owner:      Greg Still <stillgs@us.ibm.com>
+/// *HWP FW Owner:       Prem S Jha <premjha2@in.ibm.com>
+/// *HWP Team:           PM
+/// *HWP Level:          2
+/// *HWP Consumed by:    Hostboot
+//
+
+#if 0
+#include <p9_setup_runtime_wakeup_mode.H>
+#include <p9_quad_scom_addresses.H>
+
+enum
+{
+    RUN_TIME_WAKEUP_MODE_BIT_POS    =   59,
+};
+
+
+fapi2::ReturnCode p9_setup_runtime_wakeup_mode(
+    const fapi2::Target < fapi2::TARGET_TYPE_PROC_CHIP>& i_procTarget )
+{
+    FAPI_INF("> p9_setup_runtime_wakeup_mode" );
+    fapi2::buffer<uint64_t> l_wakeupMode;
+    uint8_t l_smfEnabled;
+    const fapi2::Target<fapi2::TARGET_TYPE_SYSTEM> FAPI_SYSTEM;
+    auto l_coreList =
+        i_procTarget.getChildren<fapi2::TARGET_TYPE_CORE>(fapi2::TARGET_STATE_FUNCTIONAL);
+
+    FAPI_TRY(FAPI_ATTR_GET(fapi2::ATTR_SMF_ENABLED,
+                           FAPI_SYSTEM,
+                           l_smfEnabled),
+             "Error from FAPI_ATTR_GET for attribute ATTR_SMF_ENABLED ");
+
+    for( auto core : l_coreList )
+    {
+        FAPI_TRY(fapi2::getScom(i_procTarget, C_CPPM_CPMMR, l_wakeupMode),
+                 "Failed To Read CPMMR");
+
+        FAPI_DBG( "Initial CPMMR Value 0x%016llx", l_wakeupMode );
+
+        if( l_smfEnabled )
+        {
+            FAPI_DBG("SMF Enabled");
+            //Wakeup in Ultravisor mode
+            l_wakeupMode.clearBit( RUN_TIME_WAKEUP_MODE_BIT_POS );
+        }
+        else
+        {
+            //Wakeup in Hypervisor mode
+            l_wakeupMode.setBit( RUN_TIME_WAKEUP_MODE_BIT_POS );
+        }
+
+        FAPI_TRY(fapi2::putScom(core, C_CPPM_CPMMR, l_wakeupMode),
+                 "Failed To Write CPMMR");
+
+        FAPI_DBG( "Final CPMMR Value 0x%016llx", l_wakeupMode );
+
+    }
+
+fapi_try_exit:
+    FAPI_INF("< p9_setup_runtime_wakeup_mode" );
+    return fapi2::current_err;
+}
+
+#endif
diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.H b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.H
new file mode 100644
index 000000000..27e9086ad
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.H
@@ -0,0 +1,59 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.H $ */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2018                             */
+/* [+] 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                                                     */
+
+#if 0
+#ifndef __RUN_TIME_WAKEUP_MODE_
+#define __RUN_TIME_WAKEUP_MODE_
+
+///
+/// @file   p9_setup_runtime_wakeup_mode.H
+/// @brief  describes HWP interface that configures runtime wakeup mode of core.
+///
+/// *HWP HWP Owner:      Greg Still <stillgs@us.ibm.com>
+/// *HWP FW Owner:       Prem S Jha <premjha2@in.ibm.com>
+/// *HWP Team:           PM
+/// *HWP Level:          2
+/// *HWP Consumed by:    Hostboot
+//
+
+
+#include <fapi2.H>
+
+extern "C"
+{
+
+    typedef fapi2::ReturnCode( *p9_setup_runtime_wakeup_mode_FP_t ) (
+        const fapi2::Target < fapi2::TARGET_TYPE_PROC_CHIP>& i_procTarget );
+
+    /// @brief      sets runtime wakeup mode for all functional cores in the proc.
+    /// @param[in]  i_procTarget        fapi2 target for P9 chip.
+    /// @return     FAPI2_RC_SUCCESS    if HWP succeeds, error code otherwise.
+    fapi2::ReturnCode p9_setup_runtime_wakeup_mode( const fapi2::Target < fapi2::TARGET_TYPE_PROC_CHIP>& i_procTarget );
+
+} //extern "C"
+
+#endif  //__RUN_TIME_WAKEUP_MODE_
+
+#endif
diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.mk b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.mk
new file mode 100644
index 000000000..9c4f8cd26
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.mk
@@ -0,0 +1,26 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/import/chips/p9/procedures/hwp/pm/p9_setup_runtime_wakeup_mode.mk $
+#
+# OpenPOWER HostBoot Project
+#
+# Contributors Listed Below - COPYRIGHT 2018
+# [+] 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
+#PROCEDURE = p9_setup_runtime_wakeup_mode
+#$(call BUILD_PROCEDURE)