ArmGicV3Dxe.c File Reference

#include <Library/ArmGicLib.h>
#include "ArmGicDxe.h"

Go to the source code of this file.

Macros
#define	ARM_GIC_DEFAULT_PRIORITY   0x80

Functions
STATIC EFI_STATUS EFIAPI	GicV3EnableInterruptSource (IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source)
STATIC EFI_STATUS EFIAPI	GicV3DisableInterruptSource (IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source)
STATIC EFI_STATUS EFIAPI	GicV3GetInterruptSourceState (IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source, IN BOOLEAN *InterruptState)
STATIC EFI_STATUS EFIAPI	GicV3EndOfInterrupt (IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source)
STATIC VOID EFIAPI	GicV3IrqInterruptHandler (IN EFI_EXCEPTION_TYPE InterruptType, IN EFI_SYSTEM_CONTEXT SystemContext)
STATIC EFI_STATUS EFIAPI	GicV3GetTriggerType (IN EFI_HARDWARE_INTERRUPT2_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source, OUT EFI_HARDWARE_INTERRUPT2_TRIGGER_TYPE *TriggerType)
STATIC EFI_STATUS EFIAPI	GicV3SetTriggerType (IN EFI_HARDWARE_INTERRUPT2_PROTOCOL *This, IN HARDWARE_INTERRUPT_SOURCE Source, IN EFI_HARDWARE_INTERRUPT2_TRIGGER_TYPE TriggerType)
VOID EFIAPI	GicV3ExitBootServicesEvent (IN EFI_EVENT Event, IN VOID *Context)
EFI_STATUS	GicV3DxeInitialize (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Variables
EFI_HARDWARE_INTERRUPT_PROTOCOL	gHardwareInterruptV3Protocol
EFI_HARDWARE_INTERRUPT2_PROTOCOL	gHardwareInterrupt2V3Protocol
STATIC UINTN	mGicDistributorBase
STATIC UINTN	mGicRedistributorsBase

Detailed Description

Copyright (c) 2011-2023, Arm Limited. All rights reserved.

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

Definition in file ArmGicV3Dxe.c.

Macro Definition Documentation

ARM_GIC_DEFAULT_PRIORITY

#define ARM_GIC_DEFAULT_PRIORITY   0x80

Definition at line 13 of file ArmGicV3Dxe.c.

Function Documentation

GicV3DisableInterruptSource()

STATIC EFI_STATUS EFIAPI GicV3DisableInterruptSource	(	IN EFI_HARDWARE_INTERRUPT_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source
	)

Disable interrupt source Source.

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt

Return values

EFI_SUCCESS	Source interrupt disabled.
EFI_DEVICE_ERROR	Hardware could not be programmed.

Definition at line 62 of file ArmGicV3Dxe.c.

GicV3DxeInitialize()

EFI_STATUS GicV3DxeInitialize	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Initialize the state information for the CPU Architectural Protocol

Parameters

ImageHandle	of the loaded driver
SystemTable	Pointer to the System Table

Return values

EFI_SUCCESS	Protocol registered
EFI_OUT_OF_RESOURCES	Cannot allocate protocol data structure
EFI_DEVICE_ERROR	Hardware problems

Definition at line 370 of file ArmGicV3Dxe.c.

GicV3EnableInterruptSource()

STATIC EFI_STATUS EFIAPI GicV3EnableInterruptSource	(	IN EFI_HARDWARE_INTERRUPT_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source
	)

Enable interrupt source Source.

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt

Return values

EFI_SUCCESS	Source interrupt enabled.
EFI_DEVICE_ERROR	Hardware could not be programmed.

Definition at line 34 of file ArmGicV3Dxe.c.

GicV3EndOfInterrupt()

STATIC EFI_STATUS EFIAPI GicV3EndOfInterrupt	(	IN EFI_HARDWARE_INTERRUPT_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source
	)

Signal to the hardware that the End Of Interrupt state has been reached.

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt

Return values

EFI_SUCCESS	Source interrupt ended successfully.
EFI_DEVICE_ERROR	Hardware could not be programmed.

Definition at line 125 of file ArmGicV3Dxe.c.

GicV3ExitBootServicesEvent()

VOID EFIAPI GicV3ExitBootServicesEvent	(	IN EFI_EVENT	Event,
		IN VOID *	Context
	)

Shutdown our hardware

DXE Core will disable interrupts and turn off the timer and disable interrupts after all the event handlers have run.

Parameters

[in]	Event	The Event that is being processed
[in]	Context	Event Context

Definition at line 339 of file ArmGicV3Dxe.c.

GicV3GetInterruptSourceState()

STATIC EFI_STATUS EFIAPI GicV3GetInterruptSourceState	(	IN EFI_HARDWARE_INTERRUPT_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source,
		IN BOOLEAN *	InterruptState
	)

Return current state of interrupt source Source.

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt
InterruptState	TRUE: source enabled, FALSE: source disabled.

Return values

EFI_SUCCESS	InterruptState is valid
EFI_DEVICE_ERROR	InterruptState is not valid

Definition at line 91 of file ArmGicV3Dxe.c.

GicV3GetTriggerType()

STATIC EFI_STATUS EFIAPI GicV3GetTriggerType	(	IN EFI_HARDWARE_INTERRUPT2_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source,
		OUT EFI_HARDWARE_INTERRUPT2_TRIGGER_TYPE *	TriggerType
	)

Get interrupt trigger type of an interrupt

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt.
TriggerType	Returns interrupt trigger type.

Return values

EFI_SUCCESS	Source interrupt supported.
EFI_UNSUPPORTED	Source interrupt is not supported.

Definition at line 203 of file ArmGicV3Dxe.c.

GicV3IrqInterruptHandler()

STATIC VOID EFIAPI GicV3IrqInterruptHandler	(	IN EFI_EXCEPTION_TYPE	InterruptType,
		IN EFI_SYSTEM_CONTEXT	SystemContext
	)

EFI_CPU_INTERRUPT_HANDLER that is called when a processor interrupt occurs.

Parameters

InterruptType	Defines the type of interrupt or exception that occurred on the processor. This parameter is processor architecture specific.
SystemContext	A pointer to the processor context when the interrupt occurred on the processor.

Returns

None

Definition at line 154 of file ArmGicV3Dxe.c.

GicV3SetTriggerType()

STATIC EFI_STATUS EFIAPI GicV3SetTriggerType	(	IN EFI_HARDWARE_INTERRUPT2_PROTOCOL *	This,
		IN HARDWARE_INTERRUPT_SOURCE	Source,
		IN EFI_HARDWARE_INTERRUPT2_TRIGGER_TYPE	TriggerType
	)

Set interrupt trigger type of an interrupt

Parameters

This	Instance pointer for this protocol
Source	Hardware source of the interrupt.
TriggerType	Interrupt trigger type.

Return values

EFI_SUCCESS	Source interrupt supported.
EFI_UNSUPPORTED	Source interrupt is not supported.

Definition at line 245 of file ArmGicV3Dxe.c.

Variable Documentation

gHardwareInterrupt2V3Protocol

EFI_HARDWARE_INTERRUPT2_PROTOCOL gHardwareInterrupt2V3Protocol

Initial value:

= {
  (HARDWARE_INTERRUPT2_REGISTER)RegisterInterruptSource,
  (HARDWARE_INTERRUPT2_ENABLE)GicV3EnableInterruptSource,
  (HARDWARE_INTERRUPT2_DISABLE)GicV3DisableInterruptSource,
  (HARDWARE_INTERRUPT2_INTERRUPT_STATE)GicV3GetInterruptSourceState,
  (HARDWARE_INTERRUPT2_END_OF_INTERRUPT)GicV3EndOfInterrupt,
  GicV3GetTriggerType,
  GicV3SetTriggerType
}

Definition at line 318 of file ArmGicV3Dxe.c.

gHardwareInterruptV3Protocol

EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptV3Protocol

Initial value:

= {
  RegisterInterruptSource,
  GicV3EnableInterruptSource,
  GicV3DisableInterruptSource,
  GicV3GetInterruptSourceState,
  GicV3EndOfInterrupt
}

Definition at line 182 of file ArmGicV3Dxe.c.

mGicDistributorBase

STATIC UINTN mGicDistributorBase

Definition at line 18 of file ArmGicV3Dxe.c.

mGicRedistributorsBase

STATIC UINTN mGicRedistributorsBase

Definition at line 19 of file ArmGicV3Dxe.c.