ArmPkg/Library/ArmLib/ArmV7/ArmV7ArchTimerSupport.S

   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 .text
  16 .align 2
  17
  18 GCC_ASM_EXPORT (ArmReadCntFrq)
  19 GCC_ASM_EXPORT (ArmWriteCntFrq)
  20 GCC_ASM_EXPORT (ArmReadCntPct)
  21 GCC_ASM_EXPORT (ArmReadCntkCtl)
  22 GCC_ASM_EXPORT (ArmWriteCntkCtl)
  23 GCC_ASM_EXPORT (ArmReadCntpTval)
  24 GCC_ASM_EXPORT (ArmWriteCntpTval)
  25 GCC_ASM_EXPORT (ArmReadCntpCtl)
  26 GCC_ASM_EXPORT (ArmWriteCntpCtl)
  27 GCC_ASM_EXPORT (ArmReadCntvTval)
  28 GCC_ASM_EXPORT (ArmWriteCntvTval)
  29 GCC_ASM_EXPORT (ArmReadCntvCtl)
  30 GCC_ASM_EXPORT (ArmWriteCntvCtl)
  31 GCC_ASM_EXPORT (ArmReadCntvCt)
  32 GCC_ASM_EXPORT (ArmReadCntpCval)
  33 GCC_ASM_EXPORT (ArmWriteCntpCval)
  34 GCC_ASM_EXPORT (ArmReadCntvCval)
  35 GCC_ASM_EXPORT (ArmWriteCntvCval)
  36 GCC_ASM_EXPORT (ArmReadCntvOff)
  37 GCC_ASM_EXPORT (ArmWriteCntvOff)
  38
  39 ASM_PFX(ArmReadCntFrq):
  40   mrc    p15, 0, r0, c14, c0, 0    @ Read CNTFRQ
  41   bx     lr
  42
  43 ASM_PFX(ArmWriteCntFrq):
  44   mcr    p15, 0, r0, c14, c0, 0    @ Write to CNTFRQ
  45   bx     lr
  46
  47 ASM_PFX(ArmReadCntPct):
  48   mrrc   p15, 0, r0, r1, c14       @ Read CNTPT (Physical counter register)
  49   bx     lr
  50
  51 ASM_PFX(ArmReadCntkCtl):
  52   mrc    p15, 0, r0, c14, c1, 0    @ Read CNTK_CTL (Timer PL1 Control Register)
  53   bx     lr
  54
  55 ASM_PFX(ArmWriteCntkCtl):
  56   mcr    p15, 0, r0, c14, c1, 0    @ Write to CNTK_CTL (Timer PL1 Control Register)
  57   bx     lr
  58
  59 ASM_PFX(ArmReadCntpTval):
  60   mrc    p15, 0, r0, c14, c2, 0    @ Read CNTP_TVAL (PL1 physical timer value register)
  61   bx     lr
  62
  63 ASM_PFX(ArmWriteCntpTval):
  64   mcr    p15, 0, r0, c14, c2, 0    @ Write to CNTP_TVAL (PL1 physical timer value register)
  65   bx     lr
  66
  67 ASM_PFX(ArmReadCntpCtl):
  68   mrc    p15, 0, r0, c14, c2, 1    @ Read CNTP_CTL (PL1 Physical Timer Control Register)
  69   bx     lr
  70
  71 ASM_PFX(ArmWriteCntpCtl):
  72   mcr    p15, 0, r0, c14, c2, 1    @ Write to  CNTP_CTL (PL1 Physical Timer Control Register)
  73   bx     lr
  74
  75 ASM_PFX(ArmReadCntvTval):
  76   mrc    p15, 0, r0, c14, c3, 0    @ Read CNTV_TVAL (Virtual Timer Value register)
  77   bx     lr
  78
  79 ASM_PFX(ArmWriteCntvTval):
  80   mcr    p15, 0, r0, c14, c3, 0    @ Write to CNTV_TVAL (Virtual Timer Value register)
  81   bx     lr
  82
  83 ASM_PFX(ArmReadCntvCtl):
  84   mrc    p15, 0, r0, c14, c3, 1    @ Read CNTV_CTL (Virtual Timer Control Register)
  85   bx     lr
  86
  87 ASM_PFX(ArmWriteCntvCtl):
  88   mcr    p15, 0, r0, c14, c3, 1    @ Write to CNTV_CTL (Virtual Timer Control Register)
  89   bx     lr
  90
  91 ASM_PFX(ArmReadCntvCt):
  92   mrrc   p15, 1, r0, r1, c14       @ Read CNTVCT  (Virtual Count Register)
  93   bx     lr
  94
  95 ASM_PFX(ArmReadCntpCval):
  96   mrrc   p15, 2, r0, r1, c14       @ Read CNTP_CTVAL (Physical Timer Compare Value Register)
  97   bx     lr
  98
  99 ASM_PFX(ArmWriteCntpCval):
 100   mcrr   p15, 2, r0, r1, c14       @ Write to CNTP_CTVAL (Physical Timer Compare Value Register)
 101   bx     lr
 102
 103 ASM_PFX(ArmReadCntvCval):
 104   mrrc   p15, 3, r0, r1, c14       @ Read CNTV_CTVAL (Virtual Timer Compare Value Register)
 105   bx     lr
 106
 107 ASM_PFX(ArmWriteCntvCval):
 108   mcrr   p15, 3, r0, r1, c14       @ write to  CNTV_CTVAL (Virtual Timer Compare Value Register)
 109   bx     lr
 110
 111 ASM_PFX(ArmReadCntvOff):
 112   mrrc   p15, 4, r0, r1, c14       @ Read CNTVOFF (virtual Offset register)
 113   bx     lr
 114
 115 ASM_PFX(ArmWriteCntvOff):
 116   mcrr   p15, 4, r0, r1, c14       @ Write to CNTVOFF (Virtual Offset register)
 117   bx     lr
 118
 119 ASM_FUNCTION_REMOVE_IF_UNREFERENCED