ArmPkg/Library/ArmLib/ArmV7/ArmV7ArchTimerSupport.asm

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2011, 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
  16     INCLUDE AsmMacroExport.inc
  17     PRESERVE8
  18
  19  RVCT_ASM_EXPORT ArmReadCntFrq
  20   mrc    p15, 0, r0, c14, c0, 0    ; Read CNTFRQ
  21   bx     lr
  22
  23  RVCT_ASM_EXPORT ArmWriteCntFrq
  24   mcr    p15, 0, r0, c14, c0, 0    ; Write to CNTFRQ
  25   bx     lr
  26
  27  RVCT_ASM_EXPORT ArmReadCntPct
  28   mrrc   p15, 0, r0, r1, c14       ; Read CNTPT (Physical counter register)
  29   bx     lr
  30
  31  RVCT_ASM_EXPORT ArmReadCntkCtl
  32   mrc    p15, 0, r0, c14, c1, 0    ; Read CNTK_CTL (Timer PL1 Control Register)
  33   bx     lr
  34
  35  RVCT_ASM_EXPORT ArmWriteCntkCtl
  36   mcr    p15, 0, r0, c14, c1, 0    ; Write to CNTK_CTL (Timer PL1 Control Register)
  37   bx     lr
  38
  39  RVCT_ASM_EXPORT ArmReadCntpTval
  40   mrc    p15, 0, r0, c14, c2, 0    ; Read CNTP_TVAL (PL1 physical timer value register)
  41   bx     lr
  42
  43  RVCT_ASM_EXPORT ArmWriteCntpTval
  44   mcr    p15, 0, r0, c14, c2, 0    ; Write to CNTP_TVAL (PL1 physical timer value register)
  45   bx     lr
  46
  47  RVCT_ASM_EXPORT ArmReadCntpCtl
  48   mrc    p15, 0, r0, c14, c2, 1    ; Read CNTP_CTL (PL1 Physical Timer Control Register)
  49   bx     lr
  50
  51  RVCT_ASM_EXPORT ArmWriteCntpCtl
  52   mcr    p15, 0, r0, c14, c2, 1    ; Write to  CNTP_CTL (PL1 Physical Timer Control Register)
  53   bx     lr
  54
  55  RVCT_ASM_EXPORT ArmReadCntvTval
  56   mrc    p15, 0, r0, c14, c3, 0    ; Read CNTV_TVAL (Virtual Timer Value register)
  57   bx     lr
  58
  59  RVCT_ASM_EXPORT ArmWriteCntvTval
  60   mcr    p15, 0, r0, c14, c3, 0    ; Write to CNTV_TVAL (Virtual Timer Value register)
  61   bx     lr
  62
  63  RVCT_ASM_EXPORT ArmReadCntvCtl
  64   mrc    p15, 0, r0, c14, c3, 1    ; Read CNTV_CTL (Virtual Timer Control Register)
  65   bx     lr
  66
  67  RVCT_ASM_EXPORT ArmWriteCntvCtl
  68   mcr    p15, 0, r0, c14, c3, 1    ; Write to CNTV_CTL (Virtual Timer Control Register)
  69   bx     lr
  70
  71  RVCT_ASM_EXPORT ArmReadCntvCt
  72   mrrc   p15, 1, r0, r1, c14       ; Read CNTVCT  (Virtual Count Register)
  73   bx     lr
  74
  75  RVCT_ASM_EXPORT ArmReadCntpCval
  76   mrrc   p15, 2, r0, r1, c14       ; Read CNTP_CTVAL (Physical Timer Compare Value Register)
  77   bx     lr
  78
  79  RVCT_ASM_EXPORT ArmWriteCntpCval
  80   mcrr   p15, 2, r0, r1, c14       ; Write to CNTP_CTVAL (Physical Timer Compare Value Register)
  81   bx     lr
  82
  83  RVCT_ASM_EXPORT ArmReadCntvCval
  84   mrrc   p15, 3, r0, r1, c14       ; Read CNTV_CTVAL (Virtual Timer Compare Value Register)
  85   bx     lr
  86
  87  RVCT_ASM_EXPORT ArmWriteCntvCval
  88   mcrr   p15, 3, r0, r1, c14       ; write to  CNTV_CTVAL (Virtual Timer Compare Value Register)
  89   bx     lr
  90
  91  RVCT_ASM_EXPORT ArmReadCntvOff
  92   mrrc   p15, 4, r0, r1, c14       ; Read CNTVOFF (virtual Offset register)
  93   bx     lr
  94
  95  RVCT_ASM_EXPORT ArmWriteCntvOff
  96   mcrr   p15, 4, r0, r1, c14       ; Write to CNTVOFF (Virtual Offset register)
  97   bx     lr
  98
  99  END