openpower/package/hostboot/p9Patches/hostboot-1002-PM-set-PGPE-and-SGPE-Timer-Select.patch

From 72976d2d7f3a303830a41cf282260be09260bcfc Mon Sep 17 00:00:00 2001
From: Greg Still <stillgs@us.ibm.com>
Date: Tue, 27 Jun 2017 09:26:41 -0500
Subject: [PATCH v1 1002/1002] PM: set PGPE and SGPE Timer Select

- Writes fixed values for FIT and watchdog timers on both engines
- Needed for DD2 as DD1 was done with initfile settings
- Will work for either DD level

Change-Id: I8fa0a5a20091016e4210b7c81b0297bded7ade62
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/42496
Reviewed-by: RAHUL BATRA <rbatra@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: Michael S. Floyd <mfloyd@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Jennifer A Stofer <stofer@us.ibm.com>

Conflicts:
	src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C
---
 src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C | 10 ++++++++++
 src/import/chips/p9/procedures/hwp/pm/p9_pm_stop_gpe_init.C   |  8 ++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C b/src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C
index bdf8f74..1ca2772 100644
--- a/src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_pm_pstate_gpe_init.C
@@ -113,6 +113,16 @@ fapi2::ReturnCode pstate_gpe_init(
 
     FAPI_TRY(putScom(i_target, PU_OCB_OCI_OCCS2_SCOM, l_occ_scratch2));
 
+    // Setup the PGPE Timer Selects
+    // These hardcoded values are assumed by the PGPE Hcode for setting up
+    // the FIT and Watchdog values a based on the nest frequency that is
+    // passed to it via the PGPE header.
+    l_data64.flush<0>()
+      .insertFromRight<0, 4>(0x1)    // Watchdog
+    .insertFromRight<4, 4>(0xA);   // FIT
+    FAPI_TRY(fapi2::putScom(i_target, PU_GPE2_GPETSEL_SCOM, l_data64));
+
+
     // Program XCR to ACTIVATE PGPE
     // @todo RTC 146665 Operations to PPEs should use a p9ppe namespace
     FAPI_INF("   Starting the PGPE...");
diff --git a/src/import/chips/p9/procedures/hwp/pm/p9_pm_stop_gpe_init.C b/src/import/chips/p9/procedures/hwp/pm/p9_pm_stop_gpe_init.C
index 5e05fcb..0829556 100644
--- a/src/import/chips/p9/procedures/hwp/pm/p9_pm_stop_gpe_init.C
+++ b/src/import/chips/p9/procedures/hwp/pm/p9_pm_stop_gpe_init.C
@@ -282,6 +282,14 @@ fapi2::ReturnCode p9_pm_stop_gpe_init(
             }
         }
 
+        // Setup the SGPE Timer Selects
+        // These hardcoded values are assumed by the SGPE Hcode for setting up
+        // the FIT and Watchdog values.
+        l_data64.flush<0>()
+        .insertFromRight<0, 4>(0x1)     // Watchdog
+        .insertFromRight<4, 4>(0xA);    // FIT
+        FAPI_TRY(fapi2::putScom(i_target, PU_GPE3_GPETSEL_SCOM, l_data64));
+
         // Boot the STOP GPE
         FAPI_TRY(stop_gpe_init(i_target), "ERROR: failed to initialize Stop GPE");
 
-- 
1.8.2.2