| /* $NoKeywords:$ */ |
| /** |
| * @file |
| * |
| * HyperTransport features and sequence implementation. |
| * |
| * Implements the external AmdHtInitialize entry point. |
| * Contains routines for directing the sequence of available features. |
| * Mostly, but not exclusively, AGESA_TESTPOINT invocations should be |
| * contained in this file, and not in the feature code. |
| * |
| * From a build option perspective, it may be that a few lines could be removed |
| * from compilation in this file for certain options. It is considered that |
| * the code savings from this are too small to be of concern and this file |
| * should not have any explicit build option implementation. |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: HyperTransport |
| * @e \$Revision: 35978 $ @e \$Date: 2010-08-07 02:18:50 +0800 (Sat, 07 Aug 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. |
| * |
| * *************************************************************************** |
| * |
| */ |
| |
| #include "AGESA.h" |
| #include "cpuRegisters.h" |
| #include "cpuApicUtilities.h" |
| #include "Filecode.h" |
| |
| /*---------------------------------------------------------------------------------------- |
| * 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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| // typedef unsigned int uintptr_t; |
| |
| /*---------------------------------------------------------------------------------------- |
| * 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 |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| VOID |
| ExecuteFinalHltInstruction ( |
| IN UINT32 SharedCore, |
| IN AP_MTRR_SETTINGS *ApMtrrSettingsList, |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| VOID |
| NmiHandler ( |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ); |
| |
| VOID |
| ExecuteHltInstruction ( |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ); |
| |
| VOID |
| ExecuteWbinvdInstruction ( |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ); |
| |
| /*---------------------------------------------------------------------------------------- |
| * E X P O R T E D F U N C T I O N S |
| *---------------------------------------------------------------------------------------- |
| */ |
| |
| |
| /// Structure needed to load the IDTR using the lidt instruction |
| |
| VOID |
| SetIdtr ( |
| IN IDT_BASE_LIMIT *IdtInfo, |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ) |
| { |
| __lidt (IdtInfo); |
| } |
| |
| //---------------------------------------------------------------------------- |
| |
| VOID |
| GetCsSelector ( |
| IN UINT16 *Selector, |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ) |
| { |
| static const UINT8 opcode [] = {0x8C, 0xC8, 0xC3}; // mov eax, cs; ret |
| *Selector = ((UINT16 (*)(void)) (size_t) opcode) (); |
| } |
| |
| //---------------------------------------------------------------------------- |
| |
| VOID |
| NmiHandler ( |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ) |
| { |
| static const UINT8 opcode [] = {0xCF}; // iret |
| ((void (*)(void)) (size_t) opcode) (); |
| } |
| |
| //---------------------------------------------------------------------------- |
| |
| VOID |
| ExecuteHltInstruction ( |
| IN OUT AMD_CONFIG_PARAMS *StdHeaderPtr |
| ) |
| { |
| _disable (); |
| __halt (); |
| } |
| |
| //--------------------------------------------------------------------------- |
| |
| VOID |
| ExecuteWbinvdInstruction ( |
| IN AMD_CONFIG_PARAMS *StdHeader |
| ) |
| { |
| __wbinvd (); |
| } |
| |
| //---------------------------------------------------------------------------- |