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/** @file
Some definitions for MP services Ppi.
Copyright (c) 2013 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _MP_SERVICE_H_
#define _MP_SERVICE_H_
#include <Library/ReportStatusCodeLib.h>
#include <Private/Library/MpServiceLib.h>
///
/// Combine f(FamilyId), m(Model), s(SteppingId) to a single 32 bit number
///
#define EfiMakeCpuVersion(f, m, s) (((UINT32) (f) << 16) | ((UINT32) (m) << 8) | ((UINT32) (s)))
/**
Get CPU platform features settings to fill MP data.
@param[in] WakeUpBuffer The address of wakeup buffer.
@param[in] StackAddressStart The start address of APs's stacks.
@param[in] MaximumCPUsForThisSystem Maximum CPUs in this system.
@retval EFI_SUCCESS Function successfully executed.
@retval Other Error occurred while allocating memory.
**/
EFI_STATUS
EFIAPI
FillMpData (
IN UINTN WakeUpBuffer,
IN VOID *StackAddressStart,
IN UINTN MaximumCPUsForThisSystem
);
/**
This function is called by all processors (both BSP and AP) once and collects MP related data
@param[in] BSP TRUE if the CPU is BSP
@param[in] BistParam BIST (build-in self test) data for the processor. This data
is only valid for processors that are waked up for the 1st
time in this CPU DXE driver.
@retval EFI_SUCCESS Data for the processor collected and filled in
**/
EFI_STATUS
FillInProcessorInformation (
IN BOOLEAN BSP,
IN UINT32 BistParam
);
/**
Notification function that gets called once permanent memory installed to take care
of MP CPU related activities in PEI phase
@param[in] PeiServices Indirect reference to the PEI Services Table
@param[in] NotifyDesc Pointer to the descriptor for the Notification event that
caused this function to execute.
@param[in] Ppi Pointer to the PPI data associated with this function.
@retval EFI_SUCCESS Multiple processors are intialized successfully
**/
EFI_STATUS
InitializeMpSupport (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
);
/**
Re-load microcode patch.
@retval EFI_SUCCESS Multiple processors re-load microcode patch
**/
EFI_STATUS
ReloadMicrocode (
IN MP_CPU_EXCHANGE_INFO *ExchangeInfo
);
/**
Get processor feature
@param[in] Features Pointer to a buffer which stores feature information
**/
VOID
EFIAPI
GetProcessorFeatures (
IN UINT32 *Features
);
/**
Switch BSP to the processor which has least features
@retval EFI_STATUS Status code returned from each sub-routines
**/
EFI_STATUS
EFIAPI
SwitchToLowestFeatureProcess (
VOID
);
/**
Find out the common features supported by all core/threads
**/
VOID
EFIAPI
GetProcessorCommonFeature (
VOID
);
/**
Get the processor data with least features
**/
VOID
EFIAPI
GetProcessorWithLeastFeature (
VOID
);
/**
Extract CPU detail version infomation
@param[in] FamilyId FamilyId, including ExtendedFamilyId
@param[in] Model Model, including ExtendedModel
@param[in] SteppingId SteppingId
@param[in] Processor Processor
**/
VOID
EFIAPI
EfiCpuVersion (
IN OUT UINT16 *FamilyId, OPTIONAL
IN OUT UINT8 *Model, OPTIONAL
IN OUT UINT8 *SteppingId, OPTIONAL
IN OUT UINT8 *Processor OPTIONAL
);
/**
Update some processor info into LEAST_FEATURE_PROC data structure.
@param[in] Index Indicate which processor calling this routine
@param[in] LeastFeatureProcessor The data structure that will be updated
**/
VOID
EFIAPI
UpdateProcessorInfo (
IN UINTN Index,
IN LEAST_FEATURE_PROC *LeastFeatureProcessor
);
/**
Get processor feature delta
@param[in] FeaturesInput Supported features for input processor
@param[in] CommonFeatures Supported features for processor (subset of FeaturesInput)
@retval The least of processor features
**/
UINT32
EFIAPI
GetProcessorFeatureDelta (
IN UINT32 *FeaturesInput,
IN UINT32 *CommonFeatures
);
/**
Calculate how many bits are one from given number
@param[in] Value Number that will be calculated bits
@retval Number of bits
**/
UINT32
EFIAPI
GetBitsNumberOfOne (
IN UINT32 Value
);
/**
Exchange 2 processors (BSP to AP or AP to BSP)
@param[in] MyInfo CPU info for current processor
@param[in] OthersInfo CPU info that will be exchanged with
**/
VOID
AsmExchangeRole (
IN CPU_EXCHANGE_ROLE_INFO *MyInfo,
IN CPU_EXCHANGE_ROLE_INFO *OthersInfo
);
#endif
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