MdePkg/Library/BaseLib/Ipf/AccessPmr.s

   1 /// @file
   2 ///  IPF specific Performance Monitor Configuration/Data Registers accessing functions
   3 ///
   4 /// Copyright (c) 2006, Intel Corporation
   5 /// All rights reserved. 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 /// Module Name: AccessPmr.s
  14 ///
  15 ///
  16
  17 //---------------------------------------------------------------------------------
  18 //++
  19 // AsmReadPmc
  20 //
  21 // This routine is used to Reads the current value of Performance Monitor Configuration Register (PMC).
  22 //
  23 // Arguments :
  24 //
  25 // On Entry : The 8-bit PMC index.
  26 //
  27 // Return Value: The current value of PMC by Index.
  28 //
  29 //--
  30 //----------------------------------------------------------------------------------
  31 .text
  32 .type   AsmReadPmc, @function
  33 .proc   AsmReadPmc
  34 .regstk 1, 0, 0, 0
  35
  36 AsmReadPmc::
  37         srlz.i;;
  38         srlz.d;;
  39         mov             r8 = pmc[in0];;
  40         br.ret.dpnt     b0;;
  41 .endp   AsmReadPmc
  42
  43 //---------------------------------------------------------------------------------
  44 //++
  45 // AsmWritePmc
  46 //
  47 // This routine is used to write the current value to a Performance Monitor Configuration Register (PMC).
  48 //
  49 // Arguments :
  50 //
  51 // On Entry : The 8-bit PMC index.
  52 //            The value should be written to PMC
  53 //
  54 // Return Value: The value written to PMC.
  55 //
  56 //--
  57 //----------------------------------------------------------------------------------
  58 .text
  59 .type   AsmWritePmc, @function
  60 .proc   AsmWritePmc
  61 .regstk 2, 0, 0, 0
  62
  63 AsmWritePmc::
  64         mov             pmc[in0] = in1
  65         mov             r8 = in1;;
  66         srlz.i;;
  67         srlz.d;;
  68         br.ret.dpnt     b0;;
  69 .endp   AsmWritePmc
  70
  71
  72 //---------------------------------------------------------------------------------
  73 //++
  74 // AsmReadPmd
  75 //
  76 // This routine is used to Reads the current value of Performance Monitor Data Register (PMD).
  77 //
  78 // Arguments :
  79 //
  80 // On Entry : The 8-bit PMD index.
  81 //
  82 // Return Value: The current value of PMD by Index.
  83 //
  84 //--
  85 //----------------------------------------------------------------------------------
  86 .text
  87 .type   AsmReadPmd, @function
  88 .proc   AsmReadPmd
  89 .regstk 1, 0, 0, 0
  90
  91 AsmReadPmd::
  92         srlz.i;;
  93         srlz.d;;
  94         mov             r8 = pmd[in0];;
  95         br.ret.dpnt     b0;;
  96 .endp   AsmReadPmd
  97
  98 //---------------------------------------------------------------------------------
  99 //++
 100 // AsmWritePmd
 101 //
 102 // This routine is used to write the current value to Performance Monitor Data Register (PMD).
 103 //
 104 // Arguments :
 105 //
 106 // On Entry : The 8-bit PMD index.
 107 //            The value should be written to PMD
 108 //
 109 // Return Value: The value written to PMD.
 110 //
 111 //--
 112 //----------------------------------------------------------------------------------
 113 .text
 114 .type   AsmWritePmd, @function
 115 .proc   AsmWritePmd
 116 .regstk 2, 0, 0, 0
 117
 118 AsmWritePmd::
 119         mov             pmd[in0] = in1
 120         mov             r8 = in1;;
 121         srlz.i;;
 122         srlz.d;;
 123         br.ret.dpnt     b0;;
 124 .endp   AsmWritePmd