ArmPkg/Drivers/CpuDxe/CpuDxe.h

/** @file

  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
  Copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef CPU_DXE_H_
#define CPU_DXE_H_

#include <Uefi.h>

#include <Library/ArmLib.h>
#include <Library/ArmMmuLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
#include <Library/UefiLib.h>
#include <Library/CpuLib.h>
#include <Library/DefaultExceptionHandlerLib.h>
#include <Library/DebugLib.h>

#include <Guid/DebugImageInfoTable.h>
#include <Protocol/Cpu.h>
#include <Protocol/DebugSupport.h>
#include <Protocol/LoadedImage.h>
#include <Protocol/MemoryAttribute.h>

extern BOOLEAN  mIsFlushingGCD;

extern EFI_MEMORY_ATTRIBUTE_PROTOCOL  mMemoryAttribute;

/**
  This function registers and enables the handler specified by InterruptHandler for a processor
  interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the
  handler for the processor interrupt or exception type specified by InterruptType is uninstalled.
  The installed handler is called once for each processor interrupt or exception.

  @param  InterruptType    A pointer to the processor's current interrupt state. Set to TRUE if interrupts
                           are enabled and FALSE if interrupts are disabled.
  @param  InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called
                           when a processor interrupt occurs. If this parameter is NULL, then the handler
                           will be uninstalled.

  @retval EFI_SUCCESS           The handler for the processor interrupt was successfully installed or uninstalled.
  @retval EFI_ALREADY_STARTED   InterruptHandler is not NULL, and a handler for InterruptType was
                                previously installed.
  @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not
                                previously installed.
  @retval EFI_UNSUPPORTED       The interrupt specified by InterruptType is not supported.

**/
EFI_STATUS
RegisterInterruptHandler (
  IN EFI_EXCEPTION_TYPE         InterruptType,
  IN EFI_CPU_INTERRUPT_HANDLER  InterruptHandler
  );

/**
  This function registers and enables the handler specified by InterruptHandler for a processor
  interrupt or exception type specified by InterruptType. If InterruptHandler is NULL, then the
  handler for the processor interrupt or exception type specified by InterruptType is uninstalled.
  The installed handler is called once for each processor interrupt or exception.

  @param  InterruptType    A pointer to the processor's current interrupt state. Set to TRUE if interrupts
                           are enabled and FALSE if interrupts are disabled.
  @param  InterruptHandler A pointer to a function of type EFI_CPU_INTERRUPT_HANDLER that is called
                           when a processor interrupt occurs. If this parameter is NULL, then the handler
                           will be uninstalled.

  @retval EFI_SUCCESS           The handler for the processor interrupt was successfully installed or uninstalled.
  @retval EFI_ALREADY_STARTED   InterruptHandler is not NULL, and a handler for InterruptType was
                                previously installed.
  @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for InterruptType was not
                                previously installed.
  @retval EFI_UNSUPPORTED       The interrupt specified by InterruptType is not supported.

**/
EFI_STATUS
RegisterDebuggerInterruptHandler (
  IN EFI_EXCEPTION_TYPE         InterruptType,
  IN EFI_CPU_INTERRUPT_HANDLER  InterruptHandler
  );

EFI_STATUS
EFIAPI
CpuSetMemoryAttributes (
  IN EFI_CPU_ARCH_PROTOCOL  *This,
  IN EFI_PHYSICAL_ADDRESS   BaseAddress,
  IN UINT64                 Length,
  IN UINT64                 Attributes
  );

EFI_STATUS
InitializeExceptions (
  IN EFI_CPU_ARCH_PROTOCOL  *Cpu
  );

EFI_STATUS
SyncCacheConfig (
  IN  EFI_CPU_ARCH_PROTOCOL  *CpuProtocol
  );

// The ARM Attributes might be defined on 64-bit (case of the long format description table)
UINT64
EfiAttributeToArmAttribute (
  IN UINT64  EfiAttributes
  );

EFI_STATUS
GetMemoryRegion (
  IN OUT UINTN  *BaseAddress,
  OUT    UINTN  *RegionLength,
  OUT    UINTN  *RegionAttributes
  );

EFI_STATUS
SetGcdMemorySpaceAttributes (
  IN EFI_GCD_MEMORY_SPACE_DESCRIPTOR  *MemorySpaceMap,
  IN UINTN                            NumberOfDescriptors,
  IN EFI_PHYSICAL_ADDRESS             BaseAddress,
  IN UINT64                           Length,
  IN UINT64                           Attributes
  );

/**
  Convert an arch specific set of page attributes into a mask
  of EFI_MEMORY_xx constants.

  @param  PageAttributes  The set of page attributes.

  @retval The mask of EFI_MEMORY_xx constants.

**/
UINT64
RegionAttributeToGcdAttribute (
  IN UINTN  PageAttributes
  );

#endif // CPU_DXE_H_