src/vendorcode/amd/agesa/f15tn/Proc/CPU/Feature/cpuFeatures.c

/* $NoKeywords:$ */
/**
 * @file
 *
 * Implement general feature dispatcher.
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:      AGESA
 * @e sub-project:  CPU
 * @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 "Ids.h"
#include "GeneralServices.h"
#include "cpuFeatures.h"
#include "cpuFamilyTranslation.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G1_PEICC)
#define FILECODE PROC_CPU_FEATURE_CPUFEATURES_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
 *----------------------------------------------------------------------------------------
 */

/*----------------------------------------------------------------------------------------
 *            E X P O R T E D    F U N C T I O N S - External General Services API
 *----------------------------------------------------------------------------------------
 */
extern CONST CPU_FEATURE_DESCRIPTOR* ROMDATA SupportedCpuFeatureList[];

/**
 * Determines if a specific feature is or will be enabled.
 *
 * This code traverses the feature list until a match is
 * found, then invokes the 'IsEnabled' function of the
 * feature.
 *
 * @param[in]       Feature        Indicates the desired feature.
 * @param[in]       PlatformConfig Contains the runtime modifiable feature input data.
 * @param[in]       StdHeader      Standard AMD configuration parameters.
 *
 * @retval         TRUE      Feature is or will be enabled
 * @retval         FALSE     Feature is not enabled
 */
BOOLEAN
IsFeatureEnabled (
  IN       DISPATCHABLE_CPU_FEATURES Feature,
  IN       PLATFORM_CONFIGURATION *PlatformConfig,
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINTN i;

  ASSERT (Feature < MaxCpuFeature);

  for (i = 0; SupportedCpuFeatureList[i] != NULL; i++) {
    if (SupportedCpuFeatureList[i]->Feature == Feature) {
      return (SupportedCpuFeatureList[i]->IsEnabled (PlatformConfig, StdHeader));
    }
  }
  return FALSE;
}

/**
 * Dispatches all features needing to perform some initialization at
 * this time point.
 *
 * This routine searches the feature table for features needing to
 * run at this time point, and invokes them.
 *
 * @param[in]      EntryPoint     Timepoint designator
 * @param[in]      PlatformConfig Contains the runtime modifiable feature input data.
 * @param[in]      StdHeader      Standard AMD configuration parameters.
 *
 * @return         The most severe status of any called service.
 */
AGESA_STATUS
DispatchCpuFeatures (
  IN       UINT64                 EntryPoint,
  IN       PLATFORM_CONFIGURATION *PlatformConfig,
  IN       AMD_CONFIG_PARAMS      *StdHeader
  )
{
  UINTN i;
  AGESA_STATUS AgesaStatus;
  AGESA_STATUS CalledStatus;
  AGESA_STATUS IgnoredStatus;

  AgesaStatus = AGESA_SUCCESS;

  if (IsBsp (StdHeader, &IgnoredStatus)) {
    for (i = 0; SupportedCpuFeatureList[i] != NULL; i++) {
      if ((SupportedCpuFeatureList[i]->EntryPoint & EntryPoint) != 0) {
        IDS_SKIP_HOOK (IDS_CPU_FEAT, (CPU_FEATURE_DESCRIPTOR *) SupportedCpuFeatureList[i], StdHeader) {
          if (SupportedCpuFeatureList[i]->IsEnabled (PlatformConfig, StdHeader)) {
            CalledStatus = SupportedCpuFeatureList[i]->InitializeFeature (EntryPoint, PlatformConfig, StdHeader);
            if (CalledStatus > AgesaStatus) {
              AgesaStatus = CalledStatus;
            }
          }
        }
      }
    }
  }
  return AgesaStatus;
}

/**
 * This routine checks whether any non-coherent links in the system
 * runs in HT1 mode; used to determine whether certain features
 * should be disabled when this routine returns TRUE.
 *
 * @param[in]      StdHeader  Standard AMD configuration parameters.
 *
 * @retval         TRUE       One of the non-coherent links in the
 *                            system runs in HT1 mode
 * @retval         FALSE      None of the non-coherent links in the
 *                            system is running in HT1 mode
 */
BOOLEAN
IsNonCoherentHt1 (
  IN       AMD_CONFIG_PARAMS *StdHeader
  )
{
  UINTN                 Link;
  UINT32                Socket;
  UINT32                Module;
  PCI_ADDR              PciAddress;
  AGESA_STATUS          AgesaStatus;
  HT_HOST_FEATS         HtHostFeats;
  CPU_SPECIFIC_SERVICES *CpuServices;

  for (Socket = 0; Socket < GetPlatformNumberOfSockets (); Socket++) {
    if (IsProcessorPresent (Socket, StdHeader)) {
      GetCpuServicesOfSocket (Socket, (CONST CPU_SPECIFIC_SERVICES **)&CpuServices, StdHeader);
      for (Module = 0; Module < GetPlatformNumberOfModules (); Module++) {
        if (GetPciAddress (StdHeader, Socket, Module, &PciAddress, &AgesaStatus)) {
          HtHostFeats.HtHostValue = 0;
          Link = 0;
          while (CpuServices->GetNextHtLinkFeatures (CpuServices, &Link, &PciAddress, &HtHostFeats, StdHeader)) {
            // Return TRUE and exit routine once we find a non-coherent link in HT1
            if ((HtHostFeats.HtHostFeatures.NonCoherent == 1) && (HtHostFeats.HtHostFeatures.Ht1 == 1)) {
              return TRUE;
            }
          }
        }
      }
    }
  }

  return FALSE;
}