From 7c50b3434377cbb49ce4514ee31339000a5cadc0 Mon Sep 17 00:00:00 2001
From: Cinnamon Shia <cinnamon.shia@hpe.com>
Date: Tue, 8 Mar 2016 14:00:04 +0800
Subject: MdeModulePkg: Increase the maximum number of PEI performance log
 entries

The maximum number of PEI performance log entries is 255.
Add a new PCD, PcdMaxPeiPerformanceLogEntries16, to increase the maximum
number of PEI performance log entries.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Cinnamon Shia <cinnamon.shia@hpe.com>
Reviewed-by: Samer EL-Haj-Mahmoud <elhaj@hpe.com>
Reviewed-by: Joseph Shifflett <joseph.shifflett@hpe.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
---
 .../Library/PeiPerformanceLib/PeiPerformanceLib.c    | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

(limited to 'MdeModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c')

diff --git a/MdeModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c b/MdeModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
index 9674bbc621..b3b11b9519 100644
--- a/MdeModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
+++ b/MdeModulePkg/Library/PeiPerformanceLib/PeiPerformanceLib.c
@@ -4,10 +4,11 @@
   This file implements all APIs in Performance Library class in MdePkg. It creates
   performance logging GUIDed HOB on the first performance logging and then logs the
   performance data to the GUIDed HOB. Due to the limitation of temporary RAM, the maximum
-  number of performance logging entry is specified by PcdMaxPeiPerformanceLogEntries.  
+  number of performance logging entry is specified by PcdMaxPeiPerformanceLogEntries or 
+  PcdMaxPeiPerformanceLogEntries16.
 
 Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
-(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
+(C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -51,10 +52,14 @@ InternalGetPerformanceHobLog (
 {
   EFI_HOB_GUID_TYPE           *GuidHob;
   UINTN                       PeiPerformanceSize;
+  UINT16                      PeiPerformanceLogEntries;
 
   ASSERT (PeiPerformanceLog != NULL);
   ASSERT (PeiPerformanceIdArray != NULL);
 
+  PeiPerformanceLogEntries = (UINT16) (PcdGet16 (PcdMaxPeiPerformanceLogEntries16) != 0 ?
+                                       PcdGet16 (PcdMaxPeiPerformanceLogEntries16) :
+                                       PcdGet8 (PcdMaxPeiPerformanceLogEntries));
   GuidHob = GetFirstGuidHob (&gPerformanceProtocolGuid);
 
   if (GuidHob != NULL) {
@@ -71,11 +76,11 @@ InternalGetPerformanceHobLog (
     // PEI Performance HOB was not found, then build one.
     //
     PeiPerformanceSize     = sizeof (PEI_PERFORMANCE_LOG_HEADER) +
-                             sizeof (PEI_PERFORMANCE_LOG_ENTRY) * PcdGet8 (PcdMaxPeiPerformanceLogEntries);
+                             sizeof (PEI_PERFORMANCE_LOG_ENTRY) * PeiPerformanceLogEntries;
     *PeiPerformanceLog     = BuildGuidHob (&gPerformanceProtocolGuid, PeiPerformanceSize);
     *PeiPerformanceLog     = ZeroMem (*PeiPerformanceLog, PeiPerformanceSize);
 
-    PeiPerformanceSize     = sizeof (UINT32) * PcdGet8 (PcdMaxPeiPerformanceLogEntries);
+    PeiPerformanceSize     = sizeof (UINT32) * PeiPerformanceLogEntries;
     *PeiPerformanceIdArray = BuildGuidHob (&gPerformanceExProtocolGuid, PeiPerformanceSize);
     *PeiPerformanceIdArray = ZeroMem (*PeiPerformanceIdArray, PeiPerformanceSize);
   }
@@ -180,10 +185,15 @@ StartPerformanceMeasurementEx (
   UINT32                      *PeiPerformanceIdArray;
   PEI_PERFORMANCE_LOG_ENTRY   *LogEntryArray;
   UINT32                      Index;
+  UINT16                      PeiPerformanceLogEntries;
+
+  PeiPerformanceLogEntries = (UINT16) (PcdGet16 (PcdMaxPeiPerformanceLogEntries16) != 0 ?
+                                       PcdGet16 (PcdMaxPeiPerformanceLogEntries16) :
+                                       PcdGet8 (PcdMaxPeiPerformanceLogEntries));
 
   InternalGetPerformanceHobLog (&PeiPerformanceLog, &PeiPerformanceIdArray);
 
-  if (PeiPerformanceLog->NumberOfEntries >= PcdGet8 (PcdMaxPeiPerformanceLogEntries)) {
+  if (PeiPerformanceLog->NumberOfEntries >= PeiPerformanceLogEntries) {
     DEBUG ((DEBUG_ERROR, "PEI performance log array out of resources\n"));
     return RETURN_OUT_OF_RESOURCES;
   }
-- 
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