uefi/linaro-edk2/ArmPkg/Drivers/ArmGic/GicV3/Arm/ArmGicV3.S

#
#  Copyright (c) 2014, ARM Limited. All rights reserved.
#
#  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.
#
#

#include <AsmMacroIoLib.h>
#include <Library/ArmLib.h>

// For the moment we assume this will run in SVC mode on ARMv7

.text
.align 2

GCC_ASM_EXPORT(ArmGicV3GetControlSystemRegisterEnable)
GCC_ASM_EXPORT(ArmGicV3SetControlSystemRegisterEnable)
GCC_ASM_EXPORT(ArmGicV3EnableInterruptInterface)
GCC_ASM_EXPORT(ArmGicV3DisableInterruptInterface)
GCC_ASM_EXPORT(ArmGicV3EndOfInterrupt)
GCC_ASM_EXPORT(ArmGicV3AcknowledgeInterrupt)
GCC_ASM_EXPORT(ArmGicV3SetPriorityMask)
GCC_ASM_EXPORT(ArmGicV3SetBinaryPointer)

//UINT32
//EFIAPI
//ArmGicGetControlSystemRegisterEnable (
//  VOID
//  );
ASM_PFX(ArmGicV3GetControlSystemRegisterEnable):
        mrc     p15, 0, r0, c12, c12, 5 // ICC_SRE
        bx      lr

//VOID
//EFIAPI
//ArmGicSetControlSystemRegisterEnable (
//  IN UINT32         ControlSystemRegisterEnable
//  );
ASM_PFX(ArmGicV3SetControlSystemRegisterEnable):
        mcr     p15, 0, r0, c12, c12, 5 // ICC_SRE
        isb
        bx      lr

//VOID
//ArmGicV3EnableInterruptInterface (
//  VOID
//  );
ASM_PFX(ArmGicV3EnableInterruptInterface):
        mov     r0, #1
        mcr     p15, 0, r0, c12, c12, 7 // ICC_IGRPEN1
        bx      lr

//VOID
//ArmGicV3DisableInterruptInterface (
//  VOID
//  );
ASM_PFX(ArmGicV3DisableInterruptInterface):
        mov     r0, #0
        mcr     p15, 0, r0, c12, c12, 7 // ICC_IGRPEN1
        bx      lr

//VOID
//ArmGicV3EndOfInterrupt (
//  IN UINTN InterruptId
//  );
ASM_PFX(ArmGicV3EndOfInterrupt):
        mcr     p15, 0, r0, c12, c12, 1 //ICC_EOIR1
        bx      lr

//UINTN
//ArmGicV3AcknowledgeInterrupt (
//  VOID
//  );
ASM_PFX(ArmGicV3AcknowledgeInterrupt):
        mrc     p15, 0, r0, c12, c8, 0 //ICC_IAR1
        bx      lr

//VOID
//ArmGicV3SetPriorityMask (
//  IN UINTN                  Priority
//  );
ASM_PFX(ArmGicV3SetPriorityMask):
        mcr     p15, 0, r0, c4, c6, 0 //ICC_PMR
        bx      lr

//VOID
//ArmGicV3SetBinaryPointer (
//  IN UINTN                  BinaryPoint
//  );
ASM_PFX(ArmGicV3SetBinaryPointer):
        mcr     p15, 0, r0, c12, c12, 3 //ICC_BPR1
        bx      lr