src/vendorcode/amd/agesa/f15tn/Proc/GNB/Modules/GnbPcieInitLibV1/PcieAspmBlackList.c

/**
 * @file
 *
 * PCIe link ASPM Black List
 *
 *
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:     AGESA
 * @e sub-project: GNB
 * @e \$Revision: 63425 $   @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $
 *
 */
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/*----------------------------------------------------------------------------------------
 *                             M O D U L E S    U S E D
 *----------------------------------------------------------------------------------------
 */
#include  "AGESA.h"
#include  "Gnb.h"
#include  "GnbPcie.h"
#include  "GnbCommonLib.h"
#include  "PcieAspmBlackList.h"
#include  "Filecode.h"
#define FILECODE PROC_GNB_MODULES_GNBPCIEINITLIBV1_PCIEASPMBLACKLIST_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
 *----------------------------------------------------------------------------------------
 */

/*----------------------------------------------------------------------------------------
 *           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
 *----------------------------------------------------------------------------------------
 */


UINT16  AspmBrDeviceTable[] = {
 0x1002, 0x9441, (UINT16) ~(AspmL1 | AspmL0s),
 0x10B5, 0xFFFF, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0402, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0193, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0422, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0292, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x00F9, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0141, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0092, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D0, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D1, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D2, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D3, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D5, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D7, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01D8, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01DC, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01DE, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x01DF, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x016A, (UINT16) ~(AspmL1 | AspmL0s),
 0x10DE, 0x0392, (UINT16) ~(AspmL1 | AspmL0s),
 0x168C, 0xFFFF, (UINT16) ~(AspmL0s),
 0x1B4B, 0x91A3, (UINT16) ~(AspmL0s),
 0x1B4B, 0x9123, (UINT16) ~(AspmL0s),
 0x1969, 0x1083, (UINT16) ~(AspmL0s)
};

/*----------------------------------------------------------------------------------------*/
/**
 * Pcie ASPM Black List
 *
 *
 *
 * @param[in] LinkAsmp            PCie ASPM black list
 * @param[in] StdHeader           Standard configuration header
 * @retval     AGESA_STATUS
 */

AGESA_STATUS
PcieAspmBlackListFeature (
  IN       PCIe_LINK_ASPM         *LinkAsmp,
  IN       AMD_CONFIG_PARAMS      *StdHeader
  )
{
  UINT32  UpstreamDeviceId;
  UINT32  DownstreamDeviceId;
  UINTN   i;
  UINT32  DeviceId;
  UINT32  VendorId;

  GnbLibPciRead (LinkAsmp->UpstreamPort.AddressValue, AccessWidth32, &UpstreamDeviceId, StdHeader);
  GnbLibPciRead (LinkAsmp->DownstreamPort.AddressValue, AccessWidth32, &DownstreamDeviceId, StdHeader);
  for (i = 0; i < (sizeof (AspmBrDeviceTable) / sizeof (UINT16)); i = i + 3) {
    VendorId = AspmBrDeviceTable[i];
    DeviceId = AspmBrDeviceTable[i + 1];
    if (VendorId == (UINT16)UpstreamDeviceId || VendorId == (UINT16)DownstreamDeviceId ) {
      if (DeviceId == 0xFFFF || DeviceId == (UpstreamDeviceId >> 16) || DeviceId == (DownstreamDeviceId >> 16)) {
        LinkAsmp->UpstreamAspm &= AspmBrDeviceTable[i + 2];
        LinkAsmp->DownstreamAspm &= AspmBrDeviceTable[i + 2];
      }
    }
  }
  if ((UINT16)UpstreamDeviceId == 0x168c) {
    LinkAsmp->UpstreamAspm = LinkAsmp->RequestedAspm & AspmL1;
    LinkAsmp->DownstreamAspm = LinkAsmp->UpstreamAspm;
    GnbLibPciRMW (LinkAsmp->UpstreamPort.AddressValue | 0x70C, AccessS3SaveWidth32, 0x0, 0x0F003F01, StdHeader);

    DeviceId = UpstreamDeviceId >> 16;
    if ((DeviceId == 0x002C) || (DeviceId == 0x002B) || (DeviceId == 0x002E)) {
      LinkAsmp->UpstreamAspm = LinkAsmp->RequestedAspm & AspmL0sL1;
      LinkAsmp->DownstreamAspm = LinkAsmp->UpstreamAspm & AspmL1;
    }
  }
  if (UpstreamDeviceId == 0x10831969) {
    GnbLibPciRMW (LinkAsmp->UpstreamPort.AddressValue | 0x12F8, AccessS3SaveWidth32, 0xFFF7F7FF, 0, StdHeader);
  }

  return AGESA_SUCCESS;
}