EdkCompatibilityPkg/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/EsalLib.s

   1 //++
   2 // Copyright (c) 2004, Intel Corporation
   3 // All rights reserved. This program and the accompanying materials
   4 // are licensed and made available under the terms and conditions of the BSD License
   5 // which accompanies this distribution.  The full text of the license may be found at
   6 // http://opensource.org/licenses/bsd-license.php
   7 //
   8 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
   9 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  10 //
  11 //  Module Name:
  12 //
  13 //    EsalLib.s
  14 //
  15 //  Abstract:
  16 //
  17 //
  18 // Revision History:
  19 //
  20 //--
  21
  22 .file  "EsalLib.s"
  23
  24 #include  "IpfMacro.i"
  25
  26 //
  27 // Exports
  28 //
  29 .globl GetEsalEntryPoint
  30
  31
  32 //-----------------------------------------------------------------------------
  33 //++
  34 // GetEsalEntryPoint
  35 //
  36 // Return Esal global and PSR register.
  37 //
  38 // On Entry :
  39 //
  40 //
  41 // Return Value:
  42 //        r8  = EFI_SAL_SUCCESS
  43 //        r9  = Physical Plabel
  44 //        r10 = Virtual Plabel
  45 //        r11 = psr
  46 //
  47 // As per static calling conventions.
  48 //
  49 //--
  50 //---------------------------------------------------------------------------
  51 PROCEDURE_ENTRY (GetEsalEntryPoint)
  52
  53       NESTED_SETUP (0,8,0,0)
  54
  55 EsalCalcStart:
  56       mov   r8  = ip;;
  57       add   r8  = (EsalEntryPoint - EsalCalcStart), r8;;
  58       mov   r9  = r8;;
  59       add   r10 = 0x10, r8;;
  60       mov   r11 = psr;;
  61       mov   r8  = r0;;
  62
  63       NESTED_RETURN
  64
  65 PROCEDURE_EXIT (GetEsalEntryPoint)
  66
  67
  68
  69
  70
  71 //-----------------------------------------------------------------------------
  72 //++
  73 // SetEsalPhysicalEntryPoint
  74 //
  75 // Set the dispatcher entry point
  76 //
  77 // On Entry:
  78 //  in0 = Physical address of Esal Dispatcher
  79 //  in1 = Physical GP
  80 //
  81 // Return Value:
  82 //   r8 = EFI_SAL_SUCCESS
  83 //
  84 // As per static calling conventions.
  85 //
  86 //--
  87 //---------------------------------------------------------------------------
  88 PROCEDURE_ENTRY (SetEsalPhysicalEntryPoint)
  89
  90       NESTED_SETUP (2,8,0,0)
  91
  92 EsalCalcStart1:
  93       mov   r8   = ip;;
  94       add   r8   = (EsalEntryPoint - EsalCalcStart1), r8;;
  95       st8   [r8] = in0;;
  96       add   r8   = 0x08, r8;;
  97       st8   [r8] = in1;;
  98       mov   r8   = r0;;
  99
 100       NESTED_RETURN
 101
 102 PROCEDURE_EXIT (SetEsalPhysicalEntryPoint)
 103
 104
 105 //-----------------------------------------------------------------------------
 106 //++
 107 // SetEsalVirtualEntryPoint
 108 //
 109 // Register physical address of Esal globals.
 110 //
 111 // On Entry :
 112 //  in0 = Virtual address of Esal Dispatcher
 113 //  in1 = Virtual GP
 114 //
 115 // Return Value:
 116 //  r8 = EFI_SAL_ERROR
 117 //
 118 // As per static calling conventions.
 119 //
 120 //--
 121 //---------------------------------------------------------------------------
 122 PROCEDURE_ENTRY (SetEsalVirtualEntryPoint)
 123
 124       NESTED_SETUP (2,8,0,0)
 125
 126 EsalCalcStart2:
 127       mov   r8   = ip;;
 128       add   r8   = (EsalEntryPoint - EsalCalcStart2), r8;;
 129       add   r8   = 0x10, r8;;
 130       st8   [r8] = in0;;
 131       add   r8   = 0x08, r8;;
 132       st8   [r8] = in1;;
 133       mov   r8   = r0;;
 134
 135       NESTED_RETURN
 136
 137 PROCEDURE_EXIT (SetEsalVirtualEntryPoint)
 138
 139
 140
 141
 142 .align 32
 143 EsalEntryPoint:
 144     data8 0   // Physical Entry
 145     data8 0   //         GP
 146     data8 0   // Virtual Entry
 147     data8 0   //         GP
 148
 149