src/vendorcode/amd/agesa/f15/Proc/CPU/Family/0x10/cpuF10CacheFlushOnHalt.c

/* $NoKeywords:$ */
/**
 * @file
 *
 * AMD CPU Cache Flush On Halt Function.
 *
 * Contains code to initialize Cache Flush On Halt feature for Family 10h.
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:      AGESA
 * @e sub-project:  CPU/Family/0x10
 * @e \$Revision: 56279 $   @e \$Date: 2011-07-11 13:11:28 -0600 (Mon, 11 Jul 2011) $
 *
 */
/*
 ******************************************************************************
 *
 * Copyright (C) 2012 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.
 *
 ******************************************************************************
 *----------------------------------------------------------------------------
 */


/*
 *----------------------------------------------------------------------------
 *                                MODULES USED
 *
 *----------------------------------------------------------------------------
 */
#include "AGESA.h"
#include "amdlib.h"
#include "cpuRegisters.h"
#include "cpuServices.h"
#include "cpuFamilyTranslation.h"
#include "cpuPostInit.h"
#include "cpuFeatures.h"
#include "OptionMultiSocket.h"
#include "cpuF10PowerMgmt.h"
#include "Filecode.h"
CODE_GROUP (G1_PEICC)
RDATA_GROUP (G2_PEI)
#define FILECODE PROC_CPU_FAMILY_0X10_CPUF10CACHEFLUSHONHALT_FILECODE
/*----------------------------------------------------------------------------
 *                          DEFINITIONS AND MACROS
 *
 *----------------------------------------------------------------------------
 */


/*----------------------------------------------------------------------------
 *                           TYPEDEFS AND STRUCTURES
 *
 *----------------------------------------------------------------------------
 */

/*----------------------------------------------------------------------------------------
 *                          E X P O R T E D    F U N C T I O N S
 *----------------------------------------------------------------------------------------
 */
extern OPTION_MULTISOCKET_CONFIGURATION OptionMultiSocketConfiguration;
/*----------------------------------------------------------------------------
 *                        PROTOTYPES OF LOCAL FUNCTIONS
 *
 *----------------------------------------------------------------------------
 */

VOID
SetF10CacheFlushOnHaltRegister (
  IN       CPU_CFOH_FAMILY_SERVICES     *FamilySpecificServices,
  IN       UINT64                       EntryPoint,
  IN       PLATFORM_CONFIGURATION       *PlatformConfig,
  IN       AMD_CONFIG_PARAMS            *StdHeader
  );

/*----------------------------------------------------------------------------------------
 *                          P U B L I C     F U N C T I O N S
 *----------------------------------------------------------------------------------------
 */

/* -----------------------------------------------------------------------------*/
/**
 *    Enable Cpu Cache Flush On Halt Function
 *
 *    @param[in]       FamilySpecificServices   The current Family Specific Services.
 *    @param[in]       EntryPoint               Timepoint designator.
 *    @param[in]       PlatformConfig           Contains the runtime modifiable feature input data.
 *    @param[in]       StdHeader                Config Handle for library, services.
 */
VOID
SetF10CacheFlushOnHaltRegister (
  IN       CPU_CFOH_FAMILY_SERVICES     *FamilySpecificServices,
  IN       UINT64                       EntryPoint,
  IN       PLATFORM_CONFIGURATION       *PlatformConfig,
  IN       AMD_CONFIG_PARAMS            *StdHeader
  )
{
  UINT32       AndMask;
  UINT32       OrMask;
  UINT32     CoreCount;
  UINT32       CpbControl;
  CPU_LOGICAL_ID LogicalId;
  PCI_ADDR     PciAddress;
  PCI_ADDR     CpbCtrlRegister;

  if ((EntryPoint & (CPU_FEAT_AFTER_POST_MTRR_SYNC | CPU_FEAT_AFTER_RESUME_MTRR_SYNC)) != 0) {
    // Initialize F3xDC
    // bits[25:19] CacheFlushOnHaltTmr = 28h
    // bits[18:16] CacheFlushOnHaltCtl = 111b
    PciAddress.Address.Function = FUNC_3;
    PciAddress.Address.Register = CLOCK_POWER_TIMING_CTRL2_REG;
    AndMask = 0xFC00FFFF;
    OrMask = 0x01470000;

    GetLogicalIdOfCurrentCore (&LogicalId, StdHeader);
    if ((LogicalId.Revision & AMD_F10_C2) != 0) {
      //For F10_C2 single Core, F3xDC[18:16] = 0
      GetActiveCoresInCurrentSocket (&CoreCount, StdHeader);
      if (CoreCount == 1) {
        OrMask = 0x01400000;
      }
    }

    if ((LogicalId.Revision & AMD_F10_PH_ALL) != 0) {
      // If Revision E and CPB is enabled
      // F3xDC[25:19] CacheFlushOnHaltTmr = Ch
      CpbCtrlRegister.AddressValue = CPB_CTRL_PCI_ADDR;
      LibAmdPciRead (AccessWidth32, CpbCtrlRegister, &CpbControl, StdHeader);

      if (((CPB_CTRL_REGISTER *) (&CpbControl))->BoostSrc == 3) {
        OrMask = 0x00670000;
      }
    }

    IDS_OPTION_HOOK (IDS_CACHE_FLUSH_HLT, &OrMask, StdHeader);
    OptionMultiSocketConfiguration.ModifyCurrSocketPci (&PciAddress, AndMask, OrMask, StdHeader); //F3xDC
  }
}

CONST CPU_CFOH_FAMILY_SERVICES ROMDATA F10CacheFlushOnHalt =
{
  0,
  SetF10CacheFlushOnHaltRegister
};