QuarkPlatformPkg/Acpi/AcpiTables/Cpu0Ist/Cpu0Ist.asl

   1 /** @file
   2 CPU EIST control methods
   3
   4 Copyright (c) 2013-2015 Intel Corporation.
   5
   6 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 DefinitionBlock (
  17     "CPU0IST.aml",
  18     "SSDT",
  19     0x01,
  20     "SsgPmm",
  21     "Cpu0Ist",
  22     0x0012
  23     )
  24 {
  25     External (PDC0, IntObj)
  26     External (CFGD, FieldUnitObj)
  27     External(\_PR.CPU0, DeviceObj)
  28
  29     Scope(\_PR.CPU0)
  30     {
  31         Method(_PPC,0)
  32         {
  33             Return(ZERO)   // Return All States Available.
  34         }
  35
  36         Method(_PCT,0)
  37         {
  38             //
  39             // If GV3 is supported and OSPM is capable of direct access to
  40             // performance state MSR, we use MSR method
  41             //
  42             //
  43             // PDCx[0] = Indicates whether OSPM is capable of direct access to
  44             // performance state MSR.
  45             //
  46             If(LAnd(And(CFGD,0x0001), And(PDC0,0x0001)))
  47             {
  48                 Return(Package()    // MSR Method
  49                 {
  50                     ResourceTemplate(){Register(FFixedHW, 0, 0, 0)},
  51                     ResourceTemplate(){Register(FFixedHW, 0, 0, 0)}
  52                 })
  53
  54             }
  55
  56             //
  57             // Otherwise, we use smi method
  58             //
  59             Return(Package()    // SMI Method
  60                 {
  61                   ResourceTemplate(){Register(SystemIO,16,0,0xB2)},
  62                   ResourceTemplate(){Register(SystemIO, 8,0,0xB3)}
  63                 })
  64         }
  65
  66         Method(_PSS,0)
  67         {
  68             //
  69             // If OSPM is capable of direct access to performance state MSR,
  70             // we report NPSS, otherwise, we report SPSS.
  71             If (And(PDC0,0x0001))
  72             {
  73                 Return(NPSS)
  74             }
  75
  76             Return(SPSS)
  77         }
  78
  79         Name(SPSS,Package()
  80         {
  81             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  82             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  83             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  84             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  85             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  86             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  87             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  88             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  89             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  90             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  91             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  92             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000}
  93         })
  94
  95         Name(NPSS,Package()
  96         {
  97             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  98             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  99             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 100             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 101             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 102             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 103             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 104             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 105             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 106             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 107             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 108             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000}
 109         })
 110
 111         Method(_PSD,0)
 112         {
 113           //
 114           // If CMP is suppored, we report the dependency with two processors
 115           //
 116           If(And(CFGD,0x1000000))
 117           {
 118             //
 119             // If OSPM is capable of hardware coordination of P-states, we report
 120             // the dependency with hardware coordination.
 121             //
 122             // PDCx[11] = Indicates whether OSPM is capable of hardware coordination of P-states
 123             //
 124             If(And(PDC0,0x0800))
 125             {
 126               Return(Package(){
 127                 Package(){
 128                   5,  // # entries.
 129                   0,  // Revision.
 130                   0,  // Domain #.
 131                   0xFE,  // Coord Type- HW_ALL.
 132                   2  // # processors.
 133                 }
 134               })
 135             }
 136
 137             //
 138             // Otherwise, the dependency with OSPM coordination
 139             //
 140             Return(Package(){
 141               Package(){
 142                 5,    // # entries.
 143                 0,    // Revision.
 144                 0,    // Domain #.
 145                 0xFC, // Coord Type- SW_ALL.
 146                 2     // # processors.
 147               }
 148             })
 149           }
 150
 151           //
 152           //  Otherwise, we report the dependency with one processor
 153           //
 154           Return(Package(){
 155             Package(){
 156               5,      // # entries.
 157               0,      // Revision.
 158               0,      // Domain #.
 159               0xFC,   // Coord Type- SW_ALL.
 160               1       // # processors.
 161             }
 162           })
 163         }
 164     }
 165 }