QuarkPlatformPkg/Acpi/AcpiTables/Cpu0Ist/Cpu0Ist.asl

   1 /** @file
   2 CPU EIST control methods
   3
   4 Copyright (c) 2013-2015 Intel Corporation.
   5
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 DefinitionBlock (
  11     "CPU0IST.aml",
  12     "SSDT",
  13     0x01,
  14     "SsgPmm",
  15     "Cpu0Ist",
  16     0x0012
  17     )
  18 {
  19     External (PDC0, IntObj)
  20     External (CFGD, FieldUnitObj)
  21     External(\_PR.CPU0, DeviceObj)
  22
  23     Scope(\_PR.CPU0)
  24     {
  25         Method(_PPC,0)
  26         {
  27             Return(ZERO)   // Return All States Available.
  28         }
  29
  30         Method(_PCT,0)
  31         {
  32             //
  33             // If GV3 is supported and OSPM is capable of direct access to
  34             // performance state MSR, we use MSR method
  35             //
  36             //
  37             // PDCx[0] = Indicates whether OSPM is capable of direct access to
  38             // performance state MSR.
  39             //
  40             If(LAnd(And(CFGD,0x0001), And(PDC0,0x0001)))
  41             {
  42                 Return(Package()    // MSR Method
  43                 {
  44                     ResourceTemplate(){Register(FFixedHW, 0, 0, 0)},
  45                     ResourceTemplate(){Register(FFixedHW, 0, 0, 0)}
  46                 })
  47
  48             }
  49
  50             //
  51             // Otherwise, we use smi method
  52             //
  53             Return(Package()    // SMI Method
  54                 {
  55                   ResourceTemplate(){Register(SystemIO,16,0,0xB2)},
  56                   ResourceTemplate(){Register(SystemIO, 8,0,0xB3)}
  57                 })
  58         }
  59
  60         Method(_PSS,0)
  61         {
  62             //
  63             // If OSPM is capable of direct access to performance state MSR,
  64             // we report NPSS, otherwise, we report SPSS.
  65             If (And(PDC0,0x0001))
  66             {
  67                 Return(NPSS)
  68             }
  69
  70             Return(SPSS)
  71         }
  72
  73         Name(SPSS,Package()
  74         {
  75             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  76             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  77             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  78             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  79             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  80             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  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         })
  88
  89         Name(NPSS,Package()
  90         {
  91             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  92             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  93             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  94             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  95             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  96             Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
  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         })
 104
 105         Method(_PSD,0)
 106         {
 107           //
 108           // If CMP is suppored, we report the dependency with two processors
 109           //
 110           If(And(CFGD,0x1000000))
 111           {
 112             //
 113             // If OSPM is capable of hardware coordination of P-states, we report
 114             // the dependency with hardware coordination.
 115             //
 116             // PDCx[11] = Indicates whether OSPM is capable of hardware coordination of P-states
 117             //
 118             If(And(PDC0,0x0800))
 119             {
 120               Return(Package(){
 121                 Package(){
 122                   5,  // # entries.
 123                   0,  // Revision.
 124                   0,  // Domain #.
 125                   0xFE,  // Coord Type- HW_ALL.
 126                   2  // # processors.
 127                 }
 128               })
 129             }
 130
 131             //
 132             // Otherwise, the dependency with OSPM coordination
 133             //
 134             Return(Package(){
 135               Package(){
 136                 5,    // # entries.
 137                 0,    // Revision.
 138                 0,    // Domain #.
 139                 0xFC, // Coord Type- SW_ALL.
 140                 2     // # processors.
 141               }
 142             })
 143           }
 144
 145           //
 146           //  Otherwise, we report the dependency with one processor
 147           //
 148           Return(Package(){
 149             Package(){
 150               5,      // # entries.
 151               0,      // Revision.
 152               0,      // Domain #.
 153               0xFC,   // Coord Type- SW_ALL.
 154               1       // # processors.
 155             }
 156           })
 157         }
 158     }
 159 }