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/* $NoKeywords:$ */
/**
* @file
*
* AMD AGESA CPU Preserve Registers used for AP Mailbox.
*
* Save and Restore the normal feature content of the registers being used for
* the AP Mailbox.
*
* @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 _PRESERVE_MAILBOX_H_
#define _PRESERVE_MAILBOX_H_
/*----------------------------------------------------------------------------------------
* M I X E D (Definitions And Macros / Typedefs, Structures, Enums)
*----------------------------------------------------------------------------------------
*/
#define MAX_PRESERVE_REGISTER_ENTRIES 2 ///< There is room on the heap for up to this per node.
/// Reference to a save buffer.
typedef UINT32 (*MAILBOX_REGISTER_SAVE_ENTRY) [MAX_PRESERVE_REGISTER_ENTRIES];
/*----------------------------------------------------------------------------------------
* 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 mailbox register descriptor.
*
* Describes a register and bits within the register used as the mailbox.
*/
typedef struct {
PCI_ADDR Register; ///< The PCI address of a mailbox register.
UINT32 Mask; ///< The mask of bits used in Register as the mailbox.
} PRESERVE_MAILBOX_FAMILY_REGISTER;
/**
* Descriptor for family specific save-restore.
*
* Provide a list of the register offsets to save-restore on each node. Optionally, zero the
* register instead of restoring it.
*/
typedef struct {
UINT16 Revision; ///< Interface version
// Public Data.
BOOLEAN IsZeroOnCold; ///< On a cold boot, zero the register instead of restore.
PRESERVE_MAILBOX_FAMILY_REGISTER *RegisterList; ///< The list of registers, terminated by ILLEGAL_SBDFO.
} PRESERVE_MAILBOX_FAMILY_SERVICES;
/*----------------------------------------------------------------------------------------
* F U N C T I O N S P R O T O T Y P E
*----------------------------------------------------------------------------------------
*/
#endif // _PRESERVE_MAILBOX_H_
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