PGPE: WOV HW procs and Global Parm updates (2/3)

    2nd commit in the series of 3 commits for Workload Optimized
    Voltage(WOV)

    Commit 1. Adds WOV attributes
    Commit 2(Hostboot). WOV HW procedures changes and global parm updates
    Commit 3(Hcode). PGPE Hcode changes for WOV(undervolting only) feature

    Key_Cronus_Test=PM_REGRESS

HW-Image-Prereq: Iaad4fb8cdff7840ec971f866757492f6e9b2cb87
CMVC-Prereq: 1073981
Change-Id: I07f716f5d12809b8c6efdf76bf545e467cf839d8
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/69464
Tested-by: HWSV CI <hwsv-ci+hostboot@us.ibm.com>
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Tested-by: Cronus HW CI <cronushw-ci+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: RANGANATHPRASAD G. BRAHMASAMUDRA <prasadbgr@in.ibm.com>
Reviewed-by: Gregory S. Still <stillgs@us.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>

4 files changed, 49 insertions, 17 deletions

diff --git a/import/chips/p9/procedures/hwp/lib/p9_hcd_memmap_base.H b/import/chips/p9/procedures/hwp/lib/p9_hcd_memmap_base.H
index 295820dd..2e6f5c5a 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_hcd_memmap_base.H
+++ b/import/chips/p9/procedures/hwp/lib/p9_hcd_memmap_base.H
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HCODE Project                                                */
 /*                                                                        */
-/* COPYRIGHT 2015,2018                                                    */
+/* COPYRIGHT 2015,2019                                                    */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -558,6 +558,8 @@ HCD_CONST(PGPE_FLAG_WOF_IPC_IMMEDIATE_MODE,     0x0040)
 HCD_CONST(PGPE_FLAG_ENABLE_FRATIO,              0x0020)
 HCD_CONST(PGPE_FLAG_ENABLE_VRATIO,              0x0010)
 HCD_CONST(PGPE_FLAG_VRATIO_MODIFIER,            0x0008)
+HCD_CONST(PGPE_FLAG_WOV_UNDERVOLT_ENABLE,       0x0004)
+HCD_CONST(PGPE_FLAG_WOV_OVERVOLT_ENABLE,        0x0002)
 HCD_CONST(PGPE_FLAG_PHANTOM_HALT_ENABLE,        0x0001)
 
 /// PGPE Hcode
diff --git a/import/chips/p9/procedures/hwp/lib/p9_pstates_cmeqm.h b/import/chips/p9/procedures/hwp/lib/p9_pstates_cmeqm.h
index 0c2b87a6..28f71567 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_pstates_cmeqm.h
+++ b/import/chips/p9/procedures/hwp/lib/p9_pstates_cmeqm.h
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HCODE Project                                                */
 /*                                                                        */
-/* COPYRIGHT 2015,2017                                                    */
+/* COPYRIGHT 2015,2019                                                    */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -191,8 +191,10 @@ typedef struct
 {
     poundw_entry_t poundw[NUM_OP_POINTS];
     resistance_entry_t resistance_data;
+    uint8_t undervolt_tested;
+    uint8_t reserved;
     uint64_t reserved1;
-    uint16_t reserved2;
+    uint8_t reserved2; //This field was added to keep the size of struct same when undervolt_tested field was added
 } PoundW_data;
 
 /// VDM/Droop Parameter Block
diff --git a/import/chips/p9/procedures/hwp/lib/p9_pstates_common.h b/import/chips/p9/procedures/hwp/lib/p9_pstates_common.h
index f9ca0849..afed1488 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_pstates_common.h
+++ b/import/chips/p9/procedures/hwp/lib/p9_pstates_common.h
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HCODE Project                                                */
 /*                                                                        */
-/* COPYRIGHT 2015,2018                                                    */
+/* COPYRIGHT 2015,2019                                                    */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -150,12 +150,6 @@ typedef enum
 #define VPD_PV_VDN_MV           1
 #define VPD_PV_IDN_100MA        2
 
-//Remove this. RTC: 174743
-#define VPD_NUM_SLOPES_SET      2
-#define VPD_SLOPES_RAW          0
-#define VPD_SLOPES_BIASED       1
-//Remove until here. RTC: 174743
-
 #define VPD_NUM_SLOPES_REGION       3
 #define REGION_POWERSAVE_NOMINAL    0
 #define REGION_NOMINAL_TURBO        1
diff --git a/import/chips/p9/procedures/hwp/lib/p9_pstates_pgpe.h b/import/chips/p9/procedures/hwp/lib/p9_pstates_pgpe.h
index b4b61021..ebddeaed 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_pstates_pgpe.h
+++ b/import/chips/p9/procedures/hwp/lib/p9_pstates_pgpe.h
@@ -5,7 +5,7 @@
 /*                                                                        */
 /* OpenPOWER HCODE Project                                                */
 /*                                                                        */
-/* COPYRIGHT 2015,2018                                                    */
+/* COPYRIGHT 2015,2019                                                    */
 /* [+] International Business Machines Corp.                              */
 /*                                                                        */
 /*                                                                        */
@@ -278,13 +278,47 @@ typedef struct
     /// Nest frequency in Mhz. This is used by FIT interrupt
     uint32_t nest_frequency_mhz;
 
-    /// Precalculated Pstate-Voltage Slopes
-    /// \todo Remove this. RTC: 174743
-    uint16_t PsVSlopes[VPD_NUM_SLOPES_SET][VPD_NUM_SLOPES_REGION];
+    //Maximum performance loss threshold when undervolting(in 0.1%, tenths of percent)
+    uint8_t wov_underv_perf_loss_thresh_pct;
 
-    /// Precalculated Voltage-Pstates Slopes
-    /// \todo Remove this. RTC: 174743
-    uint16_t VPsSlopes[VPD_NUM_SLOPES_SET][VPD_NUM_SLOPES_REGION];
+    //WOV undervolting increment percentage(in 0.1%, tenths of percent)
+    uint8_t wov_underv_step_incr_pct;
+
+    //WOV undervolting decrement percentage(in 0.1%, tenths of percent)
+    uint8_t wov_underv_step_decr_pct;
+
+    //WOV undervolting max percentage(in 0.1%, tenths of percent)
+    uint8_t wov_underv_max_pct;
+
+    //When undervolting, if this value is non-zero, then voltage will never be set
+    //below this value. If it is zero, then the minimum voltage is only bounded by
+    //wov_underv_max_pct.
+    uint16_t wov_underv_vmin_mv;
+
+    //When overvolting, then voltage will never be set above this value
+    uint16_t wov_overv_vmax_mv;
+
+    //WOV overvolting increment percentage(in 0.1%, tenths of percent)
+    uint8_t wov_overv_step_incr_pct;
+
+    //WOV overvolting decrement percentage(in 0.1%, tenths of percent)
+    uint8_t wov_overv_step_decr_pct;
+
+    //WOV overvolting max percentage(in 0.1%, tenths of percent)
+    uint8_t wov_overv_max_pct;
+
+    uint8_t pad;
+
+    //Determine how often to call the wov algorithm with respect
+    //to PGPE FIT ticks
+    uint32_t wov_sample_125us;
+
+    //Maximum performance loss(in 0.1%, tenths of percent). We should never be at
+    //this level, but we check using this value inside PGPE to make sure that this
+    //is reported if it ever happens
+    uint32_t wov_max_droop_pct;
+
+    uint32_t pad1;
 
     /// All operating points
     VpdOperatingPoint operating_points_set[NUM_VPD_PTS_SET][NUM_OP_POINTS];