AGESA F15tn: AMD family15 AGESA code for Trinity

AMD AGESA code for trinity.

Change-Id: I847a54b15e8ce03ad5dbc17b95ee6771a9da0592
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: zbao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/1155
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/vendorcode/amd/agesa/f15tn/Proc/GNB/Modules/GnbPcieInitLibV4/PcieMaxPayloadV4.c b/src/vendorcode/amd/agesa/f15tn/Proc/GNB/Modules/GnbPcieInitLibV4/PcieMaxPayloadV4.c
new file mode 100644
index 0000000..fe54306
--- /dev/null
+++ b/src/vendorcode/amd/agesa/f15tn/Proc/GNB/Modules/GnbPcieInitLibV4/PcieMaxPayloadV4.c
@@ -0,0 +1,322 @@
+/* $NoKeywords:$ */
+/**
+ * @file
+ *
+ * Configure Max Payload
+ *
+ *
+ *
+ * @xrefitem bom "File Content Label" "Release Content"
+ * @e project:     AGESA
+ * @e sub-project: GNB
+ * @e \$Revision:
+ *
+ */
+/*
+*****************************************************************************
+*
+* Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC.  All Rights Reserved.
+*
+* AMD is granting you permission to use this software (the Materials)
+* pursuant to the terms and conditions of your Software License Agreement
+* with AMD.  This header does *NOT* give you permission to use the Materials
+* or any rights under AMD's intellectual property.  Your use of any portion
+* of these Materials shall constitute your acceptance of those terms and
+* conditions.  If you do not agree to the terms and conditions of the Software
+* License Agreement, please do not use any portion of these Materials.
+*
+* CONFIDENTIALITY:  The Materials and all other information, identified as
+* confidential and provided to you by AMD shall be kept confidential in
+* accordance with the terms and conditions of the Software License Agreement.
+*
+* LIMITATION OF LIABILITY: THE MATERIALS AND ANY OTHER RELATED INFORMATION
+* PROVIDED TO YOU BY AMD ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED
+* WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
+* MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR PURPOSE,
+* OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR USAGE OF TRADE.
+* IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES WHATSOEVER
+* (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS
+* INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF AMD'S NEGLIGENCE,
+* GROSS NEGLIGENCE, THE USE OF OR INABILITY TO USE THE MATERIALS OR ANY OTHER
+* RELATED INFORMATION PROVIDED TO YOU BY AMD, EVEN IF AMD HAS BEEN ADVISED OF
+* THE POSSIBILITY OF SUCH DAMAGES.  BECAUSE SOME JURISDICTIONS PROHIBIT THE
+* EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES,
+* THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
+*
+* AMD does not assume any responsibility for any errors which may appear in
+* the Materials or any other related information provided to you by AMD, or
+* result from use of the Materials or any related information.
+*
+* You agree that you will not reverse engineer or decompile the Materials.
+*
+* NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any
+* further information, software, technical information, know-how, or show-how
+* available to you.  Additionally, AMD retains the right to modify the
+* Materials at any time, without notice, and is not obligated to provide such
+* modified Materials to you.
+*
+* U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with
+* "RESTRICTED RIGHTS." Use, duplication, or disclosure by the Government is
+* subject to the restrictions as set forth in FAR 52.227-14 and
+* DFAR252.227-7013, et seq., or its successor.  Use of the Materials by the
+* Government constitutes acknowledgement of AMD's proprietary rights in them.
+*
+* EXPORT ASSURANCE:  You agree and certify that neither the Materials, nor any
+* direct product thereof will be exported directly or indirectly, into any
+* country prohibited by the United States Export Administration Act and the
+* regulations thereunder, without the required authorization from the U.S.
+* government nor will be used for any purpose prohibited by the same.
+* ***************************************************************************
+*
+*/
+
+/*----------------------------------------------------------------------------------------
+ *                             M O D U L E S    U S E D
+ *----------------------------------------------------------------------------------------
+ */
+#include  "AGESA.h"
+#include  "Ids.h"
+#include  "amdlib.h"
+#include  "Gnb.h"
+#include  "GnbPcie.h"
+#include  "GnbCommonLib.h"
+#include  "GnbPcieConfig.h"
+#include  "GnbPcieInitLibV1.h"
+#include  "GnbPcieInitLibV4.h"
+#include  "PcieMaxPayloadV4.h"
+#include  "GnbRegistersTN.h"
+#include  "Filecode.h"
+#define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV4_PCIEMAXPAYLOADV4_FILECODE
+
+/*----------------------------------------------------------------------------------------
+ *                   D E F I N I T I O N S    A N D    M A C R O S
+ *----------------------------------------------------------------------------------------
+ */
+
+
+/*----------------------------------------------------------------------------------------
+ *                  T Y P E D E F S     A N D     S T R U C T U  R E S
+ *----------------------------------------------------------------------------------------
+ */
+typedef struct {
+  GNB_PCI_SCAN_DATA       ScanData;
+  UINT8                   MaxPayload;
+} PCIE_MAX_PAYLOAD_DATA;
+
+
+/*----------------------------------------------------------------------------------------
+ *           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
+ *----------------------------------------------------------------------------------------
+ */
+
+
+SCAN_STATUS
+PcieGetMaxPayloadCallback (
+  IN       PCI_ADDR             Device,
+  IN OUT   GNB_PCI_SCAN_DATA    *ScanData
+  );
+
+SCAN_STATUS
+PcieSetMaxPayloadCallback (
+  IN       PCI_ADDR             Device,
+  IN OUT   GNB_PCI_SCAN_DATA    *ScanData
+  );
+
+AGESA_STATUS
+PciePayloadBlackListFeature (
+  IN       PCI_ADDR               Device,
+  IN       UINT8                  *MaxPayload,
+  IN       AMD_CONFIG_PARAMS      *StdHeader
+  );
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Determine maximum payload size for PCIe segment
+ *
+ *  Scan through all link in segment to determine maximum payload by EPs.
+ *
+ * @param[in]   DownstreamPort    PCI address of PCIe port
+ * @param[in]   StdHeader         Standard configuration header
+ *
+ */
+
+VOID
+PcieSetMaxPayload (
+  IN       PCI_ADDR                DownstreamPort,
+  IN       AMD_CONFIG_PARAMS       *StdHeader
+  )
+{
+  PCIE_MAX_PAYLOAD_DATA  PcieMaxPayloadData;
+
+  IDS_HDT_CONSOLE (GNB_TRACE, "  PcieSetMaxPayload for Device = %d:%d:%d\n",
+    DownstreamPort.Address.Bus,
+    DownstreamPort.Address.Device,
+    DownstreamPort.Address.Function
+    );
+  PcieMaxPayloadData.MaxPayload = MAX_PAYLOAD;
+  PcieMaxPayloadData.ScanData.StdHeader = StdHeader;
+  PcieMaxPayloadData.ScanData.GnbScanCallback = PcieGetMaxPayloadCallback;
+  GnbLibPciScan (DownstreamPort, DownstreamPort, &PcieMaxPayloadData.ScanData);
+  PcieMaxPayloadData.ScanData.GnbScanCallback = PcieSetMaxPayloadCallback;
+  GnbLibPciScan (DownstreamPort, DownstreamPort, &PcieMaxPayloadData.ScanData);
+  IDS_HDT_CONSOLE (GNB_TRACE, "  PcieSetMaxPayloadExit\n");
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Evaluate device Max Payload - save SMALLEST Max Payload for PCIe Segment
+ *
+ *
+ *
+ * @param[in]     Device          PCI Address
+ * @param[in,out] ScanData        Scan configuration data
+ * @retval                        Scan Status of 0
+ */
+
+SCAN_STATUS
+PcieGetMaxPayloadCallback (
+  IN       PCI_ADDR             Device,
+  IN OUT   GNB_PCI_SCAN_DATA    *ScanData
+  )
+{
+  SCAN_STATUS             ScanStatus;
+  PCIE_MAX_PAYLOAD_DATA   *PcieMaxPayloadData;
+  PCIE_DEVICE_TYPE        DeviceType;
+  UINT32                  Value;
+  UINT8                   PcieCapPtr;
+  UINT8                   DeviceMaxPayload;
+
+  PcieMaxPayloadData = (PCIE_MAX_PAYLOAD_DATA*) ScanData;
+  ScanStatus = SCAN_SUCCESS;
+  IDS_HDT_CONSOLE (GNB_TRACE, "  PcieGetMaxPayloadCallback for Device = %d:%d:%d\n",
+    Device.Address.Bus,
+    Device.Address.Device,
+    Device.Address.Function
+    );
+  PcieCapPtr = GnbLibFindPciCapability (Device.AddressValue, PCIE_CAP_ID, ScanData->StdHeader);
+  if (PcieCapPtr != 0) {
+    GnbLibPciRead (
+      Device.AddressValue | (PcieCapPtr + PCIE_DEVICE_CAP_REGISTER),
+      AccessWidth32,
+      &Value,
+      ScanData->StdHeader
+    );
+    DeviceMaxPayload = (UINT8) (Value & 0x7);
+    PciePayloadBlackListFeature (Device, &DeviceMaxPayload, ScanData->StdHeader);
+    IDS_HDT_CONSOLE (GNB_TRACE, "  Found DeviceMaxPayload as %d (Value = %x\n", DeviceMaxPayload, Value);
+    if (DeviceMaxPayload < PcieMaxPayloadData->MaxPayload) {
+      PcieMaxPayloadData->MaxPayload = DeviceMaxPayload;
+    }
+  }
+  DeviceType = GnbLibGetPcieDeviceType (Device, ScanData->StdHeader);
+  switch (DeviceType) {
+  case  PcieDeviceRootComplex:
+  case  PcieDeviceDownstreamPort:
+  case  PcieDeviceUpstreamPort:
+    GnbLibPciScanSecondaryBus (Device, &PcieMaxPayloadData->ScanData);
+    break;
+  case  PcieDeviceEndPoint:
+  case  PcieDeviceLegacyEndPoint:
+    break;
+  default:
+    break;
+  }
+  return SCAN_SUCCESS;
+}
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Configure the Max Payload setting to all devices in the PCIe Segment
+ *
+ *
+ *
+ * @param[in]     Device          PCI Address
+ * @param[in,out] ScanData        Scan configuration data
+ * @retval                        Scan Status of 0
+ */
+
+SCAN_STATUS
+PcieSetMaxPayloadCallback (
+  IN       PCI_ADDR             Device,
+  IN OUT   GNB_PCI_SCAN_DATA    *ScanData
+  )
+{
+  SCAN_STATUS             ScanStatus;
+  PCIE_MAX_PAYLOAD_DATA   *PcieMaxPayloadData;
+  PCIE_DEVICE_TYPE        DeviceType;
+  UINT8                   PcieCapPtr;
+
+  PcieMaxPayloadData = (PCIE_MAX_PAYLOAD_DATA*) ScanData;
+  ScanStatus = SCAN_SUCCESS;
+  IDS_HDT_CONSOLE (GNB_TRACE, "  PcieSetMaxPayloadCallback for Device = %d:%d:%d to %d\n",
+    Device.Address.Bus,
+    Device.Address.Device,
+    Device.Address.Function,
+    PcieMaxPayloadData->MaxPayload
+    );
+  PcieCapPtr = GnbLibFindPciCapability (Device.AddressValue, PCIE_CAP_ID, ScanData->StdHeader);
+  if (PcieCapPtr != 0) {
+    GnbLibPciRMW (
+      Device.AddressValue | (PcieCapPtr + PCIE_DEVICE_CTRL_REGISTER),
+      AccessWidth32,
+      ~(UINT32) (0x7 << 5),
+      ((UINT32)PcieMaxPayloadData->MaxPayload << 5),
+      ScanData->StdHeader
+    );
+  }
+  DeviceType = GnbLibGetPcieDeviceType (Device, ScanData->StdHeader);
+  switch (DeviceType) {
+  case  PcieDeviceRootComplex:
+  case  PcieDeviceDownstreamPort:
+  case  PcieDeviceUpstreamPort:
+    GnbLibPciScanSecondaryBus (Device, &PcieMaxPayloadData->ScanData);
+    break;
+  case  PcieDeviceEndPoint:
+  case  PcieDeviceLegacyEndPoint:
+    break;
+  default:
+    break;
+  }
+  return SCAN_SUCCESS;
+}
+
+UINT16  PayloadBlacklistDeviceTable[] = {
+  0x1969, 0x1083, (UINT16) MAX_PAYLOAD_128
+};
+
+/*----------------------------------------------------------------------------------------*/
+/**
+ * Pcie Max_Payload_Size Black List
+ *
+ *
+ *
+ * @param[in] Device              PCI_ADDR of PCIe Device to evaluate
+ * @param[in] MaxPayload          Pointer to Max_Payload_Size value
+ * @param[in] StdHeader           Standard configuration header
+ * @retval     AGESA_STATUS
+ */
+
+AGESA_STATUS
+PciePayloadBlackListFeature (
+  IN       PCI_ADDR               Device,
+  IN       UINT8                  *MaxPayload,
+  IN       AMD_CONFIG_PARAMS      *StdHeader
+  )
+{
+  UINT32  TargetDeviceId;
+  UINTN   i;
+  UINT32  DeviceId;
+  UINT32  VendorId;
+
+  GnbLibPciRead (Device.AddressValue, AccessWidth32, &TargetDeviceId, StdHeader);
+  for (i = 0; i < (sizeof (PayloadBlacklistDeviceTable) / sizeof (UINT16)); i = i + 3) {
+    VendorId = PayloadBlacklistDeviceTable[i];
+    DeviceId = PayloadBlacklistDeviceTable[i + 1];
+    if (VendorId == (UINT16)TargetDeviceId) {
+      if (DeviceId == 0xFFFF || DeviceId == (TargetDeviceId >> 16)) {
+        *MaxPayload = (UINT8) PayloadBlacklistDeviceTable[i + 2];
+      }
+    }
+  }
+  return AGESA_SUCCESS;
+}