ArmPkg/Library/ArmLib/Arm/ArmV7ArchTimerSupport.S

   1 #------------------------------------------------------------------------------
   2 #
   3 # Copyright (c) 2011, ARM Limited. All rights reserved.
   4 # Copyright (c) 2016, Linaro Limited. All rights reserved.
   5 #
   6 # SPDX-License-Identifier: BSD-2-Clause-Patent
   7 #
   8 #------------------------------------------------------------------------------
   9
  10 #include <AsmMacroIoLib.h>
  11
  12 ASM_FUNC(ArmReadCntFrq)
  13   mrc    p15, 0, r0, c14, c0, 0    @ Read CNTFRQ
  14   bx     lr
  15
  16 ASM_FUNC(ArmWriteCntFrq)
  17   mcr    p15, 0, r0, c14, c0, 0    @ Write to CNTFRQ
  18   bx     lr
  19
  20 ASM_FUNC(ArmReadCntPct)
  21   mrrc   p15, 0, r0, r1, c14       @ Read CNTPT (Physical counter register)
  22   bx     lr
  23
  24 ASM_FUNC(ArmReadCntkCtl)
  25   mrc    p15, 0, r0, c14, c1, 0    @ Read CNTK_CTL (Timer PL1 Control Register)
  26   bx     lr
  27
  28 ASM_FUNC(ArmWriteCntkCtl)
  29   mcr    p15, 0, r0, c14, c1, 0    @ Write to CNTK_CTL (Timer PL1 Control Register)
  30   bx     lr
  31
  32 ASM_FUNC(ArmReadCntpTval)
  33   mrc    p15, 0, r0, c14, c2, 0    @ Read CNTP_TVAL (PL1 physical timer value register)
  34   bx     lr
  35
  36 ASM_FUNC(ArmWriteCntpTval)
  37   mcr    p15, 0, r0, c14, c2, 0    @ Write to CNTP_TVAL (PL1 physical timer value register)
  38   bx     lr
  39
  40 ASM_FUNC(ArmReadCntpCtl)
  41   mrc    p15, 0, r0, c14, c2, 1    @ Read CNTP_CTL (PL1 Physical Timer Control Register)
  42   bx     lr
  43
  44 ASM_FUNC(ArmWriteCntpCtl)
  45   mcr    p15, 0, r0, c14, c2, 1    @ Write to  CNTP_CTL (PL1 Physical Timer Control Register)
  46   bx     lr
  47
  48 ASM_FUNC(ArmReadCntvTval)
  49   mrc    p15, 0, r0, c14, c3, 0    @ Read CNTV_TVAL (Virtual Timer Value register)
  50   bx     lr
  51
  52 ASM_FUNC(ArmWriteCntvTval)
  53   mcr    p15, 0, r0, c14, c3, 0    @ Write to CNTV_TVAL (Virtual Timer Value register)
  54   bx     lr
  55
  56 ASM_FUNC(ArmReadCntvCtl)
  57   mrc    p15, 0, r0, c14, c3, 1    @ Read CNTV_CTL (Virtual Timer Control Register)
  58   bx     lr
  59
  60 ASM_FUNC(ArmWriteCntvCtl)
  61   mcr    p15, 0, r0, c14, c3, 1    @ Write to CNTV_CTL (Virtual Timer Control Register)
  62   bx     lr
  63
  64 ASM_FUNC(ArmReadCntvCt)
  65   mrrc   p15, 1, r0, r1, c14       @ Read CNTVCT  (Virtual Count Register)
  66   bx     lr
  67
  68 ASM_FUNC(ArmReadCntpCval)
  69   mrrc   p15, 2, r0, r1, c14       @ Read CNTP_CTVAL (Physical Timer Compare Value Register)
  70   bx     lr
  71
  72 ASM_FUNC(ArmWriteCntpCval)
  73   mcrr   p15, 2, r0, r1, c14       @ Write to CNTP_CTVAL (Physical Timer Compare Value Register)
  74   bx     lr
  75
  76 ASM_FUNC(ArmReadCntvCval)
  77   mrrc   p15, 3, r0, r1, c14       @ Read CNTV_CTVAL (Virtual Timer Compare Value Register)
  78   bx     lr
  79
  80 ASM_FUNC(ArmWriteCntvCval)
  81   mcrr   p15, 3, r0, r1, c14       @ write to  CNTV_CTVAL (Virtual Timer Compare Value Register)
  82   bx     lr
  83
  84 ASM_FUNC(ArmReadCntvOff)
  85   mrrc   p15, 4, r0, r1, c14       @ Read CNTVOFF (virtual Offset register)
  86   bx     lr
  87
  88 ASM_FUNC(ArmWriteCntvOff)
  89   mcrr   p15, 4, r0, r1, c14       @ Write to CNTVOFF (Virtual Offset register)
  90   bx     lr
  91
  92 ASM_FUNCTION_REMOVE_IF_UNREFERENCED