Home | History | Annotate | Download | only in GicV2
      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 }
     37