EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/Ipf/AccessPmr.s

   1 /// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   2 /// This program and the accompanying materials
   3 /// are licensed and made available under the terms and conditions of the BSD License
   4 /// which accompanies this distribution.  The full text of the license may be found at
   5 /// http://opensource.org/licenses/bsd-license.php
   6 ///
   7 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   8 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
   9 ///
  10 /// Module Name: AccessPmr.s
  11 ///
  12 ///
  13 ///  IPF specific Performance Monitor Configuration/Data Registers accessing functions
  14 ///
  15
  16 //---------------------------------------------------------------------------------
  17 //++
  18 // AsmReadPmc
  19 //
  20 // This routine is used to Reads the current value of Performance Monitor Configuration Register (PMC).
  21 //
  22 // Arguments :
  23 //
  24 // On Entry : The 8-bit PMC index.
  25 //
  26 // Return Value: The current value of PMC by Index.
  27 //
  28 //--
  29 //----------------------------------------------------------------------------------
  30 .text
  31 .type   AsmReadPmc, @function
  32 .proc   AsmReadPmc
  33 .regstk 1, 0, 0, 0
  34
  35 AsmReadPmc::
  36         srlz.i;;
  37         srlz.d;;
  38         mov             r8 = pmc[in0];;
  39         br.ret.dpnt     b0;;
  40 .endp   AsmReadPmc
  41
  42 //---------------------------------------------------------------------------------
  43 //++
  44 // AsmWritePmc
  45 //
  46 // This routine is used to write the current value to a Performance Monitor Configuration Register (PMC).
  47 //
  48 // Arguments :
  49 //
  50 // On Entry : The 8-bit PMC index.
  51 //            The value should be written to PMC
  52 //
  53 // Return Value: The value written to PMC.
  54 //
  55 //--
  56 //----------------------------------------------------------------------------------
  57 .text
  58 .type   AsmWritePmc, @function
  59 .proc   AsmWritePmc
  60 .regstk 2, 0, 0, 0
  61
  62 AsmWritePmc::
  63         mov             pmc[in0] = in1
  64         mov             r8 = in1;;
  65         srlz.i;;
  66         srlz.d;;
  67         br.ret.dpnt     b0;;
  68 .endp   AsmWritePmc
  69
  70
  71 //---------------------------------------------------------------------------------
  72 //++
  73 // AsmReadPmd
  74 //
  75 // This routine is used to Reads the current value of Performance Monitor Data Register (PMD).
  76 //
  77 // Arguments :
  78 //
  79 // On Entry : The 8-bit PMD index.
  80 //
  81 // Return Value: The current value of PMD by Index.
  82 //
  83 //--
  84 //----------------------------------------------------------------------------------
  85 .text
  86 .type   AsmReadPmd, @function
  87 .proc   AsmReadPmd
  88 .regstk 1, 0, 0, 0
  89
  90 AsmReadPmd::
  91         srlz.i;;
  92         srlz.d;;
  93         mov             r8 = pmd[in0];;
  94         br.ret.dpnt     b0;;
  95 .endp   AsmReadPmd
  96
  97 //---------------------------------------------------------------------------------
  98 //++
  99 // AsmWritePmd
 100 //
 101 // This routine is used to write the current value to Performance Monitor Data Register (PMD).
 102 //
 103 // Arguments :
 104 //
 105 // On Entry : The 8-bit PMD index.
 106 //            The value should be written to PMD
 107 //
 108 // Return Value: The value written to PMD.
 109 //
 110 //--
 111 //----------------------------------------------------------------------------------
 112 .text
 113 .type   AsmWritePmd, @function
 114 .proc   AsmWritePmd
 115 .regstk 2, 0, 0, 0
 116
 117 AsmWritePmd::
 118         mov             pmd[in0] = in1
 119         mov             r8 = in1;;
 120         srlz.i;;
 121         srlz.d;;
 122         br.ret.dpnt     b0;;
 123 .endp   AsmWritePmd