system76-edk2/QuarkPlatformPkg/Acpi/AcpiTables/Cpu0Ist/Cpu0Ist.asl

/** @file
CPU EIST control methods

Copyright (c) 2013-2015 Intel Corporation.

This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution.  The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

DefinitionBlock (
    "CPU0IST.aml",
    "SSDT",
    0x01,
    "SsgPmm",
    "Cpu0Ist",
    0x0012
    )
{
    External (PDC0, IntObj)
    External (CFGD, FieldUnitObj)
    External(\_PR.CPU0, DeviceObj)

    Scope(\_PR.CPU0)
    {
        Method(_PPC,0)
        {
            Return(ZERO)   // Return All States Available.
        }

        Method(_PCT,0)
        {
            //
            // If GV3 is supported and OSPM is capable of direct access to
            // performance state MSR, we use MSR method
            //
            //
            // PDCx[0] = Indicates whether OSPM is capable of direct access to
            // performance state MSR.
            //
            If(LAnd(And(CFGD,0x0001), And(PDC0,0x0001)))
            {
                Return(Package()    // MSR Method
                {
                    ResourceTemplate(){Register(FFixedHW, 0, 0, 0)},
                    ResourceTemplate(){Register(FFixedHW, 0, 0, 0)}
                })

            }

            //
            // Otherwise, we use smi method
            //
            Return(Package()    // SMI Method
                {
                  ResourceTemplate(){Register(SystemIO,16,0,0xB2)},
                  ResourceTemplate(){Register(SystemIO, 8,0,0xB3)}
                })
        }

        Method(_PSS,0)
        {
            //
            // If OSPM is capable of direct access to performance state MSR,
            // we report NPSS, otherwise, we report SPSS.
            If (And(PDC0,0x0001))
            {
                Return(NPSS)
            }

            Return(SPSS)
        }

        Name(SPSS,Package()
        {
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000}
        })

        Name(NPSS,Package()
        {
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
            Package(){0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000, 0x80000000}
        })

        Method(_PSD,0)
        {
          //
          // If CMP is suppored, we report the dependency with two processors
          //
          If(And(CFGD,0x1000000))
          {
            //
            // If OSPM is capable of hardware coordination of P-states, we report
            // the dependency with hardware coordination.
            //
            // PDCx[11] = Indicates whether OSPM is capable of hardware coordination of P-states
            //
            If(And(PDC0,0x0800))
            {
              Return(Package(){
                Package(){
                  5,  // # entries.
                  0,  // Revision.
                  0,  // Domain #.
                  0xFE,  // Coord Type- HW_ALL.
                  2  // # processors.
                }
              })
            }

            //
            // Otherwise, the dependency with OSPM coordination
            //
            Return(Package(){
              Package(){
                5,    // # entries.
                0,    // Revision.
                0,    // Domain #.
                0xFC, // Coord Type- SW_ALL.
                2     // # processors.
              }
            })
          }

          //
          //  Otherwise, we report the dependency with one processor
          //
          Return(Package(){
            Package(){
              5,      // # entries.
              0,      // Revision.
              0,      // Domain #.
              0xFC,   // Coord Type- SW_ALL.
              1       // # processors.
            }
          })
        }
    }
}