Add AMD Family 12 cpu Agesa code

This is the addition of the AMD Family 12 cpu code.

Change-Id: I3febc81e192b4e86bbd3e8d6e1da62a28598fa8c
Signed-off-by: Frank Vibrans<frank.vibrans@amd.com>
Signed-off-by: efdesign98 <efdesign98@gmail.com>
Reviewed-on: http://review.coreboot.org/40
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

1 files changed, 521 insertions, 0 deletions

diff --git a/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbPcieConfig/PcieConfigData.c b/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbPcieConfig/PcieConfigData.c
new file mode 100755
index 0000000000..6f4f8fb8a3
--- /dev/null
+++ b/src/vendorcode/amd/agesa/f12/Proc/GNB/Modules/GnbPcieConfig/PcieConfigData.c
@@ -0,0 +1,521 @@
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * GNB function to create/locate PCIe configuration data area
+ *
+ * Contain code that create/locate and rebase configuration data area.
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project:     AGESA
+ * @e sub-project: GNB
+ * @e \$Revision: 49916 $   @e \$Date: 2011-03-30 19:03:54 +0800 (Wed, 30 Mar 2011) $
+ *
+ */
+/*
+*****************************************************************************
+*
+* Copyright (c) 2011, Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Advanced Micro Devices, Inc. nor the names of
+ *       its contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+* ***************************************************************************
+*
+*/
+
+/*----------------------------------------------------------------------------------------
+ *                             M O D U L E S    U S E D
+ *----------------------------------------------------------------------------------------
+ */
+#include  "AGESA.h"
+#include  "Ids.h"
+#include  "amdlib.h"
+#include  "heapManager.h"
+#include  "OptionGnb.h"
+#include  "Gnb.h"
+#include  "GnbPcie.h"
+#include  "GnbPcieFamServices.h"
+#include  "cpuRegisters.h"
+#include  "cpuServices.h"
+#include  "GnbCommonLib.h"
+#include  "GnbPcieConfig.h"
+#include  "PcieMapTopology.h"
+#include  "PcieInputParser.h"
+#include  "PcieConfigLib.h"
+#include  "Filecode.h"
+#define FILECODE PROC_GNB_MODULES_GNBPCIECONFIG_PCIECONFIGDATA_FILECODE
+/*----------------------------------------------------------------------------------------
+ *                   D E F I N I T I O N S    A N D    M A C R O S
+ *----------------------------------------------------------------------------------------
+ */
+
+extern BUILD_OPT_CFG UserOptions;
+extern GNB_BUILD_OPTIONS ROMDATA GnbBuildOptions;
+
+/*----------------------------------------------------------------------------------------
+ *                  T Y P E D E F S     A N D     S T R U C T U  R E S
+ *----------------------------------------------------------------------------------------
+ */
+
+
+/*----------------------------------------------------------------------------------------
+ *           P R O T O T Y P E S     O F     L O C A L     F U N C T I O N S
+ *----------------------------------------------------------------------------------------
+ */
+AGESA_STATUS
+PcieConfigurationInit (
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  );
+
+VOID
+STATIC
+PcieConfigAttachComplexes (
+  IN  OUT   PCIe_COMPLEX_CONFIG             *Base,
+  IN  OUT   PCIe_COMPLEX_CONFIG             *New
+  );
+
+AGESA_STATUS
+PcieUpdateConfigurationData (
+  IN       PCIe_PLATFORM_CONFIG             *Pcie
+  );
+
+AGESA_STATUS
+STATIC
+PcieConfigBuildData (
+  IN       AMD_EARLY_PARAMS                *EarlyParamsPtr,
+  IN       PCIe_COMPLEX_DESCRIPTOR         *PcieComplexList,
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  );
+
+PCIe_COMPLEX_DESCRIPTOR *
+PcieConfigProcessUserConfig (
+  IN       PCIe_COMPLEX_DESCRIPTOR         *PcieComplexList,
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  );
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Create internal PCIe configuration data
+ *
+ *
+ *
+ * @param[in]  StdHeader       Standard configuration header
+ * @retval     AGESA_SUCCESS   Configuration data successfully allocated.
+ * @retval     AGESA_FATAL     Configuration data allocation failed.
+ */
+
+AGESA_STATUS
+PcieConfigurationInit (
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  )
+{
+  AMD_EARLY_PARAMS            *EarlyParamsPtr;
+  PCIe_COMPLEX_DESCRIPTOR     *PcieComplexList;
+  AGESA_STATUS                Status;
+  EarlyParamsPtr = (AMD_EARLY_PARAMS *) StdHeader;
+  PcieComplexList = PcieConfigProcessUserConfig (EarlyParamsPtr->GnbConfig.PcieComplexList, StdHeader);
+  if (PcieComplexList == NULL) {
+    return AGESA_FATAL;
+  }
+  GNB_DEBUG_CODE (
+    PcieUserConfigConfigDump (PcieComplexList);
+  );
+  Status = PcieConfigBuildData (EarlyParamsPtr, PcieComplexList, StdHeader);
+  HeapDeallocateBuffer (AMD_GNB_TEMP_DATA_HANDLE, StdHeader);
+  return Status;
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Create internal PCIe configuration data
+ *
+ *
+ *
+ * @param[in]  StdHeader       Standard configuration header
+ * @retval     AGESA_SUCCESS   Configuration data successfully allocated.
+ * @retval     AGESA_FATAL     Configuration data allocation failed.
+ */
+
+AGESA_STATUS
+STATIC
+PcieConfigBuildData (
+  IN       AMD_EARLY_PARAMS                *EarlyParamsPtr,
+  IN       PCIe_COMPLEX_DESCRIPTOR         *PcieComplexList,
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  )
+{
+  PCIe_PLATFORM_CONFIG          *Pcie;
+  AGESA_STATUS                  AgesaStatus;
+  AGESA_STATUS                  Status;
+  PCIe_COMPLEX_DESCRIPTOR       *ComplexDescriptor;
+  UINTN                         ComplexesDataLength;
+  UINTN                         ComplexIndex;
+  UINTN                         NumberOfComplexes;
+  VOID                          *Buffer;
+  UINTN                         Index;
+  UINT32                        NumberOfSockets;
+  UINT8                         SocketId;
+  PCIe_SILICON_CONFIG           *Silicon;
+  UINTN                         CurrentComplexesDataLength;
+  IDS_HDT_CONSOLE (GNB_TRACE, "PcieConfigurationInit Enter\n");
+  AgesaStatus = AGESA_SUCCESS;
+  ComplexesDataLength = 0;
+  NumberOfSockets = GnbGetNumberOfSockets (StdHeader);
+  for (SocketId = 0; SocketId <  NumberOfSockets; SocketId++) {
+    if (GnbIsDevicePresentInSocket (SocketId, StdHeader)) {
+      Status = PcieFmGetComplexDataLength (SocketId, &CurrentComplexesDataLength, StdHeader);
+      ASSERT (Status == AGESA_SUCCESS);
+      ComplexesDataLength += CurrentComplexesDataLength;
+    }
+  }
+  NumberOfComplexes = PcieInputParserGetNumberOfComplexes (PcieComplexList);
+  Pcie = GnbAllocateHeapBuffer (AMD_PCIE_COMPLEX_DATA_HANDLE, sizeof (PCIe_PLATFORM_CONFIG) + ComplexesDataLength, StdHeader);
+  if (Pcie == NULL) {
+    IDS_ERROR_TRAP;
+    return AGESA_FATAL;
+  }
+  LibAmdMemFill (Pcie, 0x00, sizeof (PCIe_PLATFORM_CONFIG) + ComplexesDataLength, StdHeader);
+  Pcie->StdHeader = (PVOID) StdHeader;
+  Pcie->Header.Child = offsetof (PCIe_PLATFORM_CONFIG, ComplexList);
+  PcieConfigSetDescriptorFlags (Pcie, DESCRIPTOR_PLATFORM | DESCRIPTOR_TERMINATE_LIST | DESCRIPTOR_TERMINATE_TOPOLOGY);
+  Buffer = (UINT8 *) (Pcie) + sizeof (PCIe_PLATFORM_CONFIG);
+  ComplexIndex = 0;
+  for (SocketId = 0; SocketId <  NumberOfSockets; SocketId++) {
+    if (GnbIsDevicePresentInSocket (SocketId, StdHeader)) {
+      if (ComplexIndex > MAX_NUMBER_OF_COMPLEXES) {
+        IDS_ERROR_TRAP;
+        return AGESA_FATAL;
+      }
+      Pcie->ComplexList[ComplexIndex].Header.Child = (UINT16) ((UINT8 *) Buffer - (UINT8 *) &Pcie->ComplexList[ComplexIndex]);
+      Pcie->ComplexList[ComplexIndex].Header.Parent = (UINT16) ((UINT8 *) &Pcie->ComplexList[ComplexIndex] - (UINT8 *) Pcie);
+      PcieConfigSetDescriptorFlags (&Pcie->ComplexList[ComplexIndex], DESCRIPTOR_COMPLEX | DESCRIPTOR_TERMINATE_LIST | DESCRIPTOR_TERMINATE_GNB | DESCRIPTOR_TERMINATE_TOPOLOGY);
+      PcieFmBuildComplexConfiguration (SocketId, Buffer, StdHeader);
+      Silicon = PcieConfigGetChildSilicon (&Pcie->ComplexList[ComplexIndex]);
+      Silicon->Header.Parent = (UINT16) ((UINT8 *) Silicon - (UINT8 *) &Pcie->ComplexList[ComplexIndex]);
+      for (Index = 0; Index < NumberOfComplexes; Index++) {
+        ComplexDescriptor = PcieInputParserGetComplexDescriptor (PcieComplexList, Index);
+        if (ComplexDescriptor->SocketId == SocketId) {
+          Status = PcieMapTopologyOnComplex (ComplexDescriptor, &Pcie->ComplexList[ComplexIndex], Pcie);
+          Pcie->ComplexList[ComplexIndex].SocketId = SocketId;
+          AGESA_STATUS_UPDATE (Status, AgesaStatus);
+          if (ComplexIndex > 0) {
+            PcieConfigAttachComplexes (&Pcie->ComplexList[ComplexIndex - 1], &Pcie->ComplexList[ComplexIndex]);
+          }
+        }
+      }
+      PcieFmGetComplexDataLength (SocketId, &CurrentComplexesDataLength, StdHeader);
+      Buffer = (VOID *) ((UINT8 *) Buffer + CurrentComplexesDataLength);
+      ComplexIndex++;
+    }
+  }
+  Pcie->LinkReceiverDetectionPooling = GnbBuildOptions.CfgGnbLinkReceiverDetectionPooling;
+  Pcie->LinkL0Pooling = GnbBuildOptions.CfgGnbLinkL0Pooling;
+  Pcie->LinkGpioResetAssertionTime = GnbBuildOptions.CfgGnbLinkGpioResetAssertionTime;
+  Pcie->LinkResetToTrainingTime = GnbBuildOptions.CfgGnbLinkResetToTrainingTime;
+  Pcie->GfxCardWorkaround = GfxWorkaroundEnable;
+  Pcie->TrainingExitState = LinkStateTrainingCompleted;
+  Pcie->TrainingAlgorithm = GnbBuildOptions.CfgGnbTrainingAlgorithm;
+  if ((UserOptions.CfgAmdPlatformType  & AMD_PLATFORM_MOBILE) != 0) {
+    Pcie->GfxCardWorkaround = GfxWorkaroundDisable;
+  }
+  Pcie->PsppPolicy =  EarlyParamsPtr->GnbConfig.PsppPolicy;
+  IDS_OPTION_CALLOUT (IDS_CALLOUT_GNB_PCIE_PLATFORM_CONFIG, Pcie, StdHeader);
+  GNB_DEBUG_CODE (
+    PcieConfigDebugDump (Pcie);
+    );
+  IDS_HDT_CONSOLE (GNB_TRACE, "PcieConfigurationInit Exit [0x%x]\n", AgesaStatus);
+  return AgesaStatus;
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Locate global PCIe configuration data
+ *
+ *
+ *
+ * @param[in]  PcieComplexList User PCIe topology configuration
+ * @param[out] StdHeader       Standard configuration header
+ * @retval     Updated topology configuration
+ */
+PCIe_COMPLEX_DESCRIPTOR *
+PcieConfigProcessUserConfig (
+  IN       PCIe_COMPLEX_DESCRIPTOR         *PcieComplexList,
+  IN       AMD_CONFIG_PARAMS               *StdHeader
+  )
+{
+  UINT32                    Node0SocketId;
+  UINT32                    Node0SiliconId;
+  UINTN                     NumberOfComplexes;
+  UINTN                     NumberOfPorts;
+  UINTN                     Index;
+  UINT16                    DescriptorLoLane;
+  UINT16                    DescriptorHiLane;
+  PCIe_COMPLEX_DESCRIPTOR   *ResultComplexConfig;
+  PCIe_COMPLEX_DESCRIPTOR   *SbComplexDescriptor;
+  PCIe_PORT_DESCRIPTOR      *SbPortDescriptor;
+  PCIe_PORT_DESCRIPTOR      DefaultSbPortDescriptor;
+  PCIe_ENGINE_DESCRIPTOR    *EngineDescriptor;
+  AGESA_STATUS              Status;
+  SbPortDescriptor = NULL;
+  GetSocketModuleOfNode (0, &Node0SocketId, &Node0SiliconId, StdHeader);
+  Status = PcieFmGetSbConfigInfo ((UINT8) Node0SocketId, &DefaultSbPortDescriptor, StdHeader);
+  if (Status == AGESA_UNSUPPORTED) {
+    return PcieComplexList;
+  }
+  if (PcieComplexList == NULL) {
+    // No complex descriptor for any silicon was provided
+    // 1. Create complex descriptor
+    // 2. Create SB port descriptor
+    // 3. Attach SB descriptor to complex descriptor created in step #1
+    ResultComplexConfig = (PCIe_COMPLEX_DESCRIPTOR *) GnbAllocateHeapBufferAndClear (
+                                                        AMD_GNB_TEMP_DATA_HANDLE,
+                                                        sizeof (PCIe_COMPLEX_DESCRIPTOR) + sizeof (PCIe_PORT_DESCRIPTOR),
+                                                        StdHeader
+                                                        );
+    SbComplexDescriptor = ResultComplexConfig;
+    SbPortDescriptor = (PCIe_PORT_DESCRIPTOR *) ((UINT8 *) ResultComplexConfig + sizeof (PCIe_COMPLEX_DESCRIPTOR));
+    LibAmdMemCopy (SbPortDescriptor, &DefaultSbPortDescriptor, sizeof (PCIe_PORT_DESCRIPTOR), StdHeader);
+    SbPortDescriptor->Flags |= DESCRIPTOR_TERMINATE_LIST;
+    // Attach post array to complex descriptor
+    SbComplexDescriptor->PciePortList = SbPortDescriptor;
+    SbComplexDescriptor->SocketId = Node0SocketId;
+    SbComplexDescriptor->Flags |= DESCRIPTOR_TERMINATE_LIST;
+  } else {
+    NumberOfComplexes = PcieInputParserGetNumberOfComplexes (PcieComplexList);
+    SbComplexDescriptor = PcieInputParserGetComplexDescriptorOfSocket (PcieComplexList, Node0SocketId);
+    if (SbComplexDescriptor == NULL) {
+      // No complex descriptor for silicon that have SB attached.
+      // 1. Create complex descriptor. Will be first one in the list
+      // 2. Create SB port descriptor
+      // 3. Attach SB descriptor to complex descriptor created in step #1
+      ResultComplexConfig = (PCIe_COMPLEX_DESCRIPTOR *) GnbAllocateHeapBufferAndClear (
+                                                          AMD_GNB_TEMP_DATA_HANDLE,
+                                                          (NumberOfComplexes + 1) * sizeof (PCIe_COMPLEX_DESCRIPTOR) + sizeof (PCIe_PORT_DESCRIPTOR),
+                                                          StdHeader
+                                                          );
+      SbComplexDescriptor = ResultComplexConfig;
+      SbPortDescriptor = (PCIe_PORT_DESCRIPTOR *) ((UINT8 *) ResultComplexConfig + (NumberOfComplexes + 1) * sizeof (PCIe_COMPLEX_DESCRIPTOR));
+      LibAmdMemCopy (SbPortDescriptor, &DefaultSbPortDescriptor, sizeof (PCIe_PORT_DESCRIPTOR), StdHeader);
+      SbPortDescriptor->Flags |= DESCRIPTOR_TERMINATE_LIST;
+      // Attach post array to complex descriptor
+      SbComplexDescriptor->PciePortList = SbPortDescriptor;
+      SbComplexDescriptor->SocketId = Node0SocketId;
+      SbComplexDescriptor->Flags |= DESCRIPTOR_TERMINATE_LIST;
+      LibAmdMemCopy (
+        (UINT8 *) ResultComplexConfig + sizeof (PCIe_COMPLEX_DESCRIPTOR),
+        PcieComplexList,
+        NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR),
+        StdHeader
+        );
+
+    } else {
+      // Complex descriptor that represent silicon that have SB attached exist
+      // 1. Determine if complex have descriptor for SB
+      // 2. Create new descriptor for SB if needed
+      NumberOfPorts = PcieInputParserGetLengthOfPcieEnginesList (SbComplexDescriptor);
+      ResultComplexConfig = (PCIe_COMPLEX_DESCRIPTOR *) GnbAllocateHeapBuffer (
+                                                          AMD_GNB_TEMP_DATA_HANDLE,
+                                                          NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR) + (NumberOfPorts + 1) * sizeof (PCIe_PORT_DESCRIPTOR),
+                                                          StdHeader
+                                                          );
+      // Copy complex descriptor array
+      LibAmdMemCopy (
+        ResultComplexConfig,
+        PcieComplexList,
+        NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR),
+        StdHeader
+        );
+      if (NumberOfPorts != 0) {
+        // Copy port descriptor array associated with complex with SB attached
+        LibAmdMemCopy (
+          (UINT8*) ResultComplexConfig + NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR) + sizeof (PCIe_PORT_DESCRIPTOR),
+          SbComplexDescriptor->PciePortList,
+          NumberOfPorts * sizeof (PCIe_PORT_DESCRIPTOR),
+          StdHeader
+          );
+        // Update SB complex pointer on in memory list
+        SbComplexDescriptor = PcieInputParserGetComplexDescriptorOfSocket ((PCIe_COMPLEX_DESCRIPTOR *) ResultComplexConfig, Node0SocketId);
+        // Attach port descriptor array to complex
+        SbComplexDescriptor->PciePortList = (PCIe_PORT_DESCRIPTOR *) ((UINT8*) ResultComplexConfig + NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR) + sizeof (PCIe_PORT_DESCRIPTOR));
+        for (Index = 0; Index < NumberOfPorts; ++Index) {
+          EngineDescriptor = PcieInputParserGetEngineDescriptor (SbComplexDescriptor, Index);
+          if (EngineDescriptor->EngineData.EngineType == PciePortEngine) {
+            DescriptorLoLane = MIN (EngineDescriptor->EngineData.StartLane, EngineDescriptor->EngineData.EndLane);
+            DescriptorHiLane = MAX (EngineDescriptor->EngineData.StartLane, EngineDescriptor->EngineData.EndLane);
+            if (DescriptorLoLane >= DefaultSbPortDescriptor.EngineData.StartLane && DescriptorLoLane <= DefaultSbPortDescriptor.EngineData.EndLane) {
+              SbPortDescriptor = (PCIe_PORT_DESCRIPTOR *) EngineDescriptor;
+            }
+          }
+        }
+      }
+      if (SbPortDescriptor == NULL) {
+        // No descriptor that represent SB where found, create new one, will be first one in list
+        SbPortDescriptor = (PCIe_PORT_DESCRIPTOR *) ((UINT8*) ResultComplexConfig + NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR));
+        // Copy default config info
+        LibAmdMemCopy (SbPortDescriptor, &DefaultSbPortDescriptor, sizeof (PCIe_PORT_DESCRIPTOR), StdHeader);
+        // Reattach descriptor list to complex
+        SbComplexDescriptor->PciePortList = SbPortDescriptor;
+      } else {
+        // Move SB descriptor to be first one in array
+        LibAmdMemCopy (
+          (UINT8*) ResultComplexConfig + NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR),
+          SbPortDescriptor,
+          sizeof (PCIe_PORT_DESCRIPTOR),
+          StdHeader
+          );
+        // Disable original SB descriptor
+        SbPortDescriptor->EngineData.EngineType = PcieUnusedEngine;
+        //Update pointer to new SB descriptor
+        SbPortDescriptor = (PCIe_PORT_DESCRIPTOR *) ((UINT8*) ResultComplexConfig + NumberOfComplexes * sizeof (PCIe_COMPLEX_DESCRIPTOR));
+        //It is no longer a descriptor that terminates list
+        SbPortDescriptor->Flags &= (~ DESCRIPTOR_TERMINATE_LIST);
+        // Reattach descriptor list to complex
+        SbComplexDescriptor->PciePortList = SbPortDescriptor;
+      }
+    }
+  }
+  // Mark descriptor as SB link
+  SbPortDescriptor->Port.MiscControls.SbLink = 0x1;
+  return ResultComplexConfig;
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Locate global PCIe configuration data
+ *
+ *
+ *
+ * @param[in]  StdHeader       Standard configuration header
+ * @param[out] Pcie            Pointer to global PCIe configuration
+ * @retval     AGESA_SUCCESS   Configuration data successfully located
+ * @retval     AGESA_FATAL     Configuration can not be located.
+ */
+AGESA_STATUS
+PcieLocateConfigurationData (
+  IN       AMD_CONFIG_PARAMS               *StdHeader,
+     OUT   PCIe_PLATFORM_CONFIG            **Pcie
+  )
+{
+  *Pcie = GnbLocateHeapBuffer (AMD_PCIE_COMPLEX_DATA_HANDLE, StdHeader);
+  if (*Pcie == NULL) {
+    IDS_ERROR_TRAP;
+    return AGESA_FATAL;
+  }
+  PcieUpdateConfigurationData (*Pcie);
+  (*Pcie)->StdHeader = (PVOID) StdHeader;
+  return  AGESA_SUCCESS;
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Attache descriptors
+ *
+ *
+ * @param[in]      Type       Descriptor type
+ * @param[in,out]  Base       Base descriptor
+ * @param[in,out]  New      New  descriptor
+ */
+VOID
+STATIC
+PcieConfigAttachDescriptors (
+  IN       UINT32                         Type,
+  IN OUT   PCIe_DESCRIPTOR_HEADER         *Base,
+  IN OUT   PCIe_DESCRIPTOR_HEADER         *New
+  )
+{
+  PCIe_DESCRIPTOR_HEADER  *Left;
+  PCIe_DESCRIPTOR_HEADER  *Right;
+
+  Left = PcieConfigGetPeer (DESCRIPTOR_TERMINATE_GNB, PcieConfigGetChild (Type, Base));
+  Right = PcieConfigGetChild (Type, New);
+  Left->Peer = (UINT16) ((UINT8 *) Right - (UINT8 *) Left);
+  PcieConfigResetDescriptorFlags (Left, DESCRIPTOR_TERMINATE_TOPOLOGY);
+}
+
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Attach configurations of two GNB to each other.
+ *
+ * Function will link all data structure to linked lists
+ *
+ * @param[in,out]  Base       Base complex descriptor
+ * @param[in,out]  New        New complex descriptor
+ */
+VOID
+STATIC
+PcieConfigAttachComplexes (
+  IN OUT   PCIe_COMPLEX_CONFIG            *Base,
+  IN OUT   PCIe_COMPLEX_CONFIG            *New
+  )
+{
+  // Connect Complex
+  Base->Header.Peer = (UINT16) ((UINT8 *) New - (UINT8 *) Base);
+  PcieConfigResetDescriptorFlags (Base, DESCRIPTOR_TERMINATE_TOPOLOGY);
+  // Connect Silicon
+  PcieConfigAttachDescriptors (DESCRIPTOR_SILICON, &Base->Header, &New->Header);
+  // Connect Wrappers
+  PcieConfigAttachDescriptors (DESCRIPTOR_PCIE_WRAPPER | DESCRIPTOR_DDI_WRAPPER, &Base->Header, &New->Header);
+  // Connect Engines
+  PcieConfigAttachDescriptors (DESCRIPTOR_PCIE_ENGINE | DESCRIPTOR_DDI_ENGINE, &Base->Header, &New->Header);
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Update configuration data
+ *
+ * Puprouse of this structure to update config data that base on programming of
+ * other silicon compoments. For instance PCI address of GNB and PCIe ports
+ * can change by AGESA or external agent
+ *
+ *
+ * @param[in,out]   Pcie        Pointer to global PCIe configuration
+ * @retval     AGESA_SUCCESS    Configuration data successfully update
+ * @retval     AGESA_FATAL      Failt to update configuration
+ */
+AGESA_STATUS
+PcieUpdateConfigurationData (
+  IN       PCIe_PLATFORM_CONFIG            *Pcie
+  )
+{
+  PCIe_SILICON_CONFIG   *Silicon;
+  PCIe_ENGINE_CONFIG    *Engine;
+  PCI_ADDR              NewAddress;
+  // Update silicon configuration
+  Silicon = PcieConfigGetChildSilicon (Pcie);
+  while (Silicon != NULL) {
+    NewAddress = GnbGetPciAddress (PcieConfigGetParentComplex (Silicon)->SocketId, Silicon->SiliconId, GnbLibGetHeader (Pcie));
+    if (Silicon->Address.AddressValue != NewAddress.AddressValue) {
+      Silicon->Address.AddressValue = NewAddress.AddressValue;
+      Engine = PcieConfigGetChildEngine (Silicon);
+      while (Engine != NULL) {
+        if (PcieConfigIsPcieEngine (Engine)) {
+          Engine->Type.Port.Address.Address.Bus = Silicon->Address.Address.Bus;
+        }
+        Engine = (PCIe_ENGINE_CONFIG *) PcieConfigGetNextTopologyDescriptor (Engine, DESCRIPTOR_TERMINATE_GNB);
+      }
+    }
+    Silicon = (PCIe_SILICON_CONFIG *) PcieConfigGetNextTopologyDescriptor (Silicon, DESCRIPTOR_TERMINATE_TOPOLOGY);
+  }
+  return  AGESA_SUCCESS;
+}