diff options
Diffstat (limited to 'src/vendorcode/amd/agesa/f15tn/Proc/CPU/cahalt.c')
| -rw-r--r-- | src/vendorcode/amd/agesa/f15tn/Proc/CPU/cahalt.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cahalt.c b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cahalt.c new file mode 100644 index 0000000000..bc80453a90 --- /dev/null +++ b/src/vendorcode/amd/agesa/f15tn/Proc/CPU/cahalt.c @@ -0,0 +1,160 @@ +/* $NoKeywords:$ */ +/** + * @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 (); +} + +//---------------------------------------------------------------------------- |