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/**
* @file
*
* AMD AGESA CPU C6 Functions declarations.
*
* Contains code that declares the AGESA CPU C6 related APIs
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/Feature
* @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.
*
******************************************************************************
*/
#ifndef _CPU_C6_STATE_H_
#define _CPU_C6_STATE_H_
/*----------------------------------------------------------------------------------------
* M I X E D (Definitions And Macros / Typedefs, Structures, Enums)
*----------------------------------------------------------------------------------------
*/
// Forward declaration.
typedef struct _C6_FAMILY_SERVICES C6_FAMILY_SERVICES;
/*----------------------------------------------------------------------------------------
* D E F I N I T I O N S A N D M A C R O S
*----------------------------------------------------------------------------------------
*/
// Defines for CST ACPI Objects
#define CST_NAME__ '_'
#define CST_NAME_C 'C'
#define CST_NAME_S 'S'
#define CST_NAME_T 'T'
#define CST_LENGTH (CST_BODY_SIZE - 1)
#define CST_NUM_OF_ELEMENTS 0x02
#define CST_COUNT 0x01
#define CST_PKG_LENGTH (CST_BODY_SIZE - 5) // CST_BODY_SIZE - PkgHeader - Count Buffer
#define CST_PKG_ELEMENTS 0x04
#define CST_SUBPKG_LENGTH 0x14
#define CST_SUBPKG_ELEMENTS 0x0A
#define CST_GDR_LENGTH 0x000C
#define CST_C2_TYPE 0x02
/*----------------------------------------------------------------------------------------
* T Y P E D E F S A N D S T R U C T U R E S
*----------------------------------------------------------------------------------------
*/
/* AML code definition */
/// CST Header
typedef struct _CST_HEADER_STRUCT {
UINT8 NameOpcode; ///< Name Opcode
UINT8 CstName_a__; ///< String "_"
UINT8 CstName_a_C; ///< String "C"
UINT8 CstName_a_S; ///< String "S"
UINT8 CstName_a_T; ///< String "T"
} CST_HEADER_STRUCT;
#define CST_HEADER_SIZE 5
/// CST Body
typedef struct _CST_BODY_STRUCT {
UINT8 PkgOpcode; ///< Package Opcode
UINT8 PkgLength; ///< Package Length
UINT8 PkgElements; ///< Number of Elements
UINT8 Count; ///< Number of Cstate info packages
UINT8 PkgOpcode2; ///< Package Opcode
UINT8 PkgLength2; ///< Package Length
UINT8 PkgElements2; ///< Number of Elements
UINT8 BufferOpcode; ///< Buffer Opcode
UINT8 BufferLength; ///< Buffer Length
UINT8 BufferElements; ///< Number of Elements
UINT8 BufferOpcode2; ///< Buffer Opcode
UINT8 GdrOpcode; ///< Generic Register Descriptor Opcode
UINT16 GdrLength; ///< Descriptor Length
UINT8 AddrSpaceId; ///< Address Space ID
UINT8 RegBitWidth; ///< Register Bit Width
UINT8 RegBitOffset; ///< Register Bit Offset
UINT8 AddressSize; ///< Address Size
UINT64 RegisterAddr; ///< Register Address
UINT16 EndTag; ///< End Tag Descriptor
UINT8 BytePrefix; ///< Byte Prefix Opcode
UINT8 Type; ///< Type
UINT8 BytePrefix2; ///< Byte Prefix Opcode
UINT8 Latency; ///< Latency
UINT8 Power; ///< Power
} CST_BODY_STRUCT;
#define CST_BODY_SIZE 33
/*---------------------------------------------------------------------------------------*/
/**
* Family specific call to check if C6 is supported.
*
* @param[in] C6Services C6 C-state services.
* @param[in] Socket Zero-based socket number.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE C6 is supported.
* @retval FALSE C6 is not supported.
*
*/
typedef BOOLEAN F_C6_IS_SUPPORTED (
IN C6_FAMILY_SERVICES *C6Services,
IN UINT32 Socket,
IN AMD_CONFIG_PARAMS *StdHeader
);
/// Reference to a Method.
typedef F_C6_IS_SUPPORTED *PF_C6_IS_SUPPORTED;
/*---------------------------------------------------------------------------------------*/
/**
* Family specific call to enable C6.
*
* @param[in] C6Services C6 services.
* @param[in] EntryPoint Timepoint designator.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] StdHeader Config Handle for library, services.
*
* @return Family specific error value.
*
*/
typedef AGESA_STATUS F_C6_INIT (
IN C6_FAMILY_SERVICES *C6Services,
IN UINT64 EntryPoint,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
);
typedef UINT32 F_C6_GET_CST_SIZE (
IN VOID
);
typedef VOID F_C6_CREATE_CST (
IN OUT VOID **PstateAcpiBufferPtr,
IN AMD_CONFIG_PARAMS *StdHeader
);
/// Reference to a Method.
typedef F_C6_INIT *PF_C6_INIT;
typedef F_C6_GET_CST_SIZE *PF_C6_GET_CST_SIZE;
typedef F_C6_CREATE_CST *PF_C6_CREATE_CST;
/**
* Provide the interface to the C6 Family Specific Services.
*
* Use the methods or data in this struct to adapt the feature code to a specific cpu family or model (or stepping!).
* Each supported Family must provide an implementation for all methods in this interface, even if the
* implementation is a CommonReturn().
*/
struct _C6_FAMILY_SERVICES {
UINT16 Revision; ///< Interface version
// Public Methods.
PF_C6_IS_SUPPORTED IsC6Supported; ///< Method: Family specific call to check if C6 is supported.
PF_C6_INIT InitializeC6; ///< Method: Family specific call to enable C6.
PF_C6_GET_CST_SIZE GetAcpiCstObj; ///< Method: Family specific call to return the size of ACPI CST objects.
PF_C6_CREATE_CST CreateAcpiCstObj; ///< Method: Family specific call to create ACPI CST object
};
/*----------------------------------------------------------------------------------------
* F U N C T I O N S P R O T O T Y P E
*----------------------------------------------------------------------------------------
*/
#endif // _CPU_C6_STATE_H_
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