ArmPkg/Drivers/ArmGic/GicV2/ArmGicV2Lib.c

   1 /** @file
   2 *
   3 *  Copyright (c) 2013-2014, ARM Limited. All rights reserved.
   4 *
   5 *  This program and the accompanying materials
   6 *  are licensed and made available under the terms and conditions of the BSD License
   7 *  which accompanies this distribution.  The full text of the license may be found at
   8 *  http://opensource.org/licenses/bsd-license.php
   9 *
  10 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 *
  13 **/
  14
  15 #include <Library/ArmGicLib.h>
  16 #include <Library/IoLib.h>
  17
  18 UINTN
  19 EFIAPI
  20 ArmGicV2AcknowledgeInterrupt (
  21   IN  UINTN          GicInterruptInterfaceBase
  22   )
  23 {
  24   // Read the Interrupt Acknowledge Register
  25   return MmioRead32 (GicInterruptInterfaceBase + ARM_GIC_ICCIAR);
  26 }
  27
  28 VOID
  29 EFIAPI
  30 ArmGicV2EndOfInterrupt (
  31   IN  UINTN                 GicInterruptInterfaceBase,
  32   IN UINTN                  Source
  33   )
  34 {
  35   MmioWrite32 (GicInterruptInterfaceBase + ARM_GIC_ICCEIOR, Source);
  36 }