src/vendorcode/amd/agesa/f10/Proc/CPU/Feature/cpuFeatures.c

/**
 * @file
 *
 * Implement general feature dispatcher.
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:      AGESA
 * @e sub-project:  CPU
 * @e \$Revision: 44323 $   @e \$Date: 2010-12-22 01:24:58 -0700 (Wed, 22 Dec 2010) $
 *
 */
/*
 ******************************************************************************
 *
 * 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 "GeneralServices.h"
#include "cpuFeatures.h"
#include "Filecode.h"
#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;

  IDS_OPTION_HOOK (IDS_PLATFORMCFG_OVERRIDE, PlatformConfig, StdHeader);

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