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      1 #
      2 #  Copyright (c) 2014, ARM Limited. All rights reserved.
      3 #
      4 #  This program and the accompanying materials are licensed and made available
      5 #  under the terms and conditions of the BSD License which accompanies this
      6 #  distribution. The full text of the license may be found at
      7 #  http://opensource.org/licenses/bsd-license.php
      8 #
      9 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 #
     12 #
     13 
     14 #include <AsmMacroIoLib.h>
     15 #include <Library/ArmLib.h>
     16 
     17 // For the moment we assume this will run in SVC mode on ARMv7
     18 
     19 //UINT32
     20 //EFIAPI
     21 //ArmGicGetControlSystemRegisterEnable (
     22 //  VOID
     23 //  );
     24 ASM_FUNC(ArmGicV3GetControlSystemRegisterEnable)
     25         mrc     p15, 0, r0, c12, c12, 5 // ICC_SRE
     26         bx      lr
     27 
     28 //VOID
     29 //EFIAPI
     30 //ArmGicSetControlSystemRegisterEnable (
     31 //  IN UINT32         ControlSystemRegisterEnable
     32 //  );
     33 ASM_FUNC(ArmGicV3SetControlSystemRegisterEnable)
     34         mcr     p15, 0, r0, c12, c12, 5 // ICC_SRE
     35         isb
     36         bx      lr
     37 
     38 //VOID
     39 //ArmGicV3EnableInterruptInterface (
     40 //  VOID
     41 //  );
     42 ASM_FUNC(ArmGicV3EnableInterruptInterface)
     43         mov     r0, #1
     44         mcr     p15, 0, r0, c12, c12, 7 // ICC_IGRPEN1
     45         bx      lr
     46 
     47 //VOID
     48 //ArmGicV3DisableInterruptInterface (
     49 //  VOID
     50 //  );
     51 ASM_FUNC(ArmGicV3DisableInterruptInterface)
     52         mov     r0, #0
     53         mcr     p15, 0, r0, c12, c12, 7 // ICC_IGRPEN1
     54         bx      lr
     55 
     56 //VOID
     57 //ArmGicV3EndOfInterrupt (
     58 //  IN UINTN InterruptId
     59 //  );
     60 ASM_FUNC(ArmGicV3EndOfInterrupt)
     61         mcr     p15, 0, r0, c12, c12, 1 //ICC_EOIR1
     62         bx      lr
     63 
     64 //UINTN
     65 //ArmGicV3AcknowledgeInterrupt (
     66 //  VOID
     67 //  );
     68 ASM_FUNC(ArmGicV3AcknowledgeInterrupt)
     69         mrc     p15, 0, r0, c12, c8, 0 //ICC_IAR1
     70         bx      lr
     71 
     72 //VOID
     73 //ArmGicV3SetPriorityMask (
     74 //  IN UINTN                  Priority
     75 //  );
     76 ASM_FUNC(ArmGicV3SetPriorityMask)
     77         mcr     p15, 0, r0, c4, c6, 0 //ICC_PMR
     78         bx      lr
     79 
     80 //VOID
     81 //ArmGicV3SetBinaryPointer (
     82 //  IN UINTN                  BinaryPoint
     83 //  );
     84 ASM_FUNC(ArmGicV3SetBinaryPointer)
     85         mcr     p15, 0, r0, c12, c12, 3 //ICC_BPR1
     86         bx      lr
     87