src/vendorcode/amd/agesa/f16kb/Proc/CPU/Family/0x16/cpuF16Apm.c

/* $NoKeywords:$ */
/**
 * @file
 *
 * AMD Family_16 APM Initialization
 *
 * Enables Application Power Management feature
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:      AGESA
 * @e sub-project:  CPU/Family/0x16
 * @e \$Revision: 84150 $   @e \$Date: 2012-12-12 15:46:25 -0600 (Wed, 12 Dec 2012) $
 *
 */
/*
 ******************************************************************************
 *
 * Copyright (c) 2008 - 2013, 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 "amdlib.h"
#include "GeneralServices.h"
#include "cpuServices.h"
#include "cpuRegisters.h"
#include "cpuFamilyTranslation.h"
#include "cpuF16PowerMgmt.h"
#include "CommonReturns.h"
#include "cpuApm.h"
#include "OptionMultiSocket.h"
#include "Filecode.h"
CODE_GROUP (G3_DXE)
RDATA_GROUP (G3_DXE)

#define FILECODE PROC_CPU_FAMILY_0X16_CPUF16APM_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
 *----------------------------------------------------------------------------------------
 */
/*---------------------------------------------------------------------------------------*/
/**
 * Entry point for enabling Application Power Management
 *
 * This function must be run after all P-State routines have been executed
 *
 * @param[in]  ApmServices             The current CPU's family services.
 * @param[in]  StdHeader               Config handle for library and services.
 *
 * @retval     AGESA_SUCCESS           Always succeeds.
 *
 */
STATIC AGESA_STATUS
F16InitializeApm (
  IN       APM_FAMILY_SERVICES    *ApmServices,
  IN       AMD_CONFIG_PARAMS      *StdHeader
  )
{
  F16_CPB_CTRL_REGISTER  CpbControl;
  PCI_ADDR               PciAddress;

  PciAddress.AddressValue = CPB_CTRL_PCI_ADDR;
  LibAmdPciRead (AccessWidth32, PciAddress, &CpbControl, StdHeader);
  if (CpbControl.NumBoostStates == 0) {
    CpbControl.ApmMasterEn = 0;
  } else {
    CpbControl.ApmMasterEn = 1;
  }
  LibAmdPciWrite (AccessWidth32, PciAddress, &CpbControl, StdHeader);
  return AGESA_SUCCESS;
}



CONST APM_FAMILY_SERVICES ROMDATA F16ApmSupport =
{
  0,
  (PF_APM_IS_SUPPORTED) CommonReturnTrue,
  F16InitializeApm
};