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/* $NoKeywords:$ */
/**
* @file
*
* AMD AGESA CPU create low power P-state for PROCHOT_L throttling Functions declarations.
*
* Contains code that declares the AGESA CPU low power P-state related APIs
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: CPU/Feature
*
*/
/*
******************************************************************************
*
* Copyright (c) 2008 - 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.
******************************************************************************
*/
#ifndef _CPU_LOW_PWR_PSTATE_H_
#define _CPU_LOW_PWR_PSTATE_H_
/*----------------------------------------------------------------------------------------
* M I X E D (Definitions And Macros / Typedefs, Structures, Enums)
*----------------------------------------------------------------------------------------
*/
// Forward declaration needed for multi-structure mutual references
AGESA_FORWARD_DECLARATION (LOW_PWR_PSTATE_FAMILY_SERVICES);
/*----------------------------------------------------------------------------------------
* 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
*----------------------------------------------------------------------------------------
*/
/*---------------------------------------------------------------------------------------*/
/**
* Family specific call to check if Low Power P-state is supported.
*
* @param[in] LowPwrPstateService Low Power P-state services.
* @param[in] PlatformConfig Contains the runtime modifiable feature input data.
* @param[in] Socket Zero-based socket number.
* @param[in] StdHeader Config Handle for library, services.
*
* @retval TRUE Low Power P-state is supported.
* @retval FALSE Low Power P-state is not supported.
*
*/
typedef BOOLEAN F_LOW_PWR_PSTATE_IS_SUPPORTED (
IN LOW_PWR_PSTATE_FAMILY_SERVICES *LowPwrPstateService,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN UINT32 Socket,
IN AMD_CONFIG_PARAMS *StdHeader
);
/// Reference to a Method.
typedef F_LOW_PWR_PSTATE_IS_SUPPORTED *PF_LOW_PWR_PSTATE_IS_SUPPORTED;
/*---------------------------------------------------------------------------------------*/
/**
* Family specific call to enable Low Power P-state
*
* @param[in] LowPwrPstateService Low Power P-state services.
* @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_LOW_PWR_PSTATE_INIT (
IN LOW_PWR_PSTATE_FAMILY_SERVICES *LowPwrPstateService,
IN PLATFORM_CONFIGURATION *PlatformConfig,
IN AMD_CONFIG_PARAMS *StdHeader
);
/// Reference to a Method.
typedef F_LOW_PWR_PSTATE_INIT *PF_LOW_PWR_PSTATE_INIT;
/**
* Provide the interface to the Low Power P-state 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 _LOW_PWR_PSTATE_FAMILY_SERVICES {
UINT16 Revision; ///< Interface version
// Public Methods.
PF_LOW_PWR_PSTATE_IS_SUPPORTED IsLowPwrPstateSupported; ///< Method: Family specific call to check if Low Power P-state is supported.
PF_LOW_PWR_PSTATE_INIT EnableLowPwrPstate; ///< Method: Family specific call to enable Low Power P-state.
};
/*----------------------------------------------------------------------------------------
* F U N C T I O N S P R O T O T Y P E
*----------------------------------------------------------------------------------------
*/
#endif // _CPU_LOW_PWR_PSTATE_H_
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