diff options
| author | David Wei <david.wei@intel.com> | 2015-01-12 09:37:20 +0000 |
|---|---|---|
| committer | zwei4 <zwei4@Edk2> | 2015-01-12 09:37:20 +0000 |
| commit | 3cbfba02fef9dae07a041fdbf2e89611d72d6f90 (patch) | |
| tree | 0b3bf0783124d38a191e09736492c0141aa36c15 /Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl | |
| parent | 6f785cfcc304c48ec04e542ee429df95e7b51bc5 (diff) | |
| download | edk2-platforms-3cbfba02fef9dae07a041fdbf2e89611d72d6f90.tar.xz | |
Upload BSD-licensed Vlv2TbltDevicePkg and Vlv2DeviceRefCodePkg to
https://svn.code.sf.net/p/edk2/code/trunk/edk2/,
which are for MinnowBoard MAX open source project.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: David Wei <david.wei@intel.com>
Reviewed-by: Mike Wu <mike.wu@intel.com>
Reviewed-by: Hot Tian <hot.tian@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16599 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl')
| -rw-r--r-- | Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl | 799 |
1 files changed, 799 insertions, 0 deletions
diff --git a/Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl b/Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl new file mode 100644 index 0000000000..32cdcd354f --- /dev/null +++ b/Vlv2DeviceRefCodePkg/ValleyView2Soc/CPU/PowerManagement/AcpiTables/Ssdt/CpuPm.asl @@ -0,0 +1,799 @@ +/*-----------------------------------------------------------------------------
+
+
+ Intel Silvermont Processor Power Management BIOS Reference Code
+
+ Copyright (c) 2006 - 2014, Intel Corporation
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that 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.
+
+
+ Filename: CPUPM.ASL
+
+ Revision: Refer to Readme
+
+ Date: Refer to Readme
+-------------------------------------------------------------------------------
+
+ This Processor Power Management BIOS Source Code is furnished under license
+ and may only be used or copied in accordance with the terms of the license.
+ The information in this document is furnished for informational use only, is
+ subject to change without notice, and should not be construed as a commitment
+ by Intel Corporation. Intel Corporation assumes no responsibility or liability
+ for any errors or inaccuracies that may appear in this document or any
+ software that may be provided in association with this document.
+
+ Except as permitted by such license, no part of this document may be
+ reproduced, stored in a retrieval system, or transmitted in any form or by
+ any means without the express written consent of Intel Corporation.
+
+ WARNING: You are authorized and licensed to install and use this BIOS code
+ ONLY on an IST PC. This utility may damage any system that does not
+ meet these requirements.
+
+ An IST PC is a computer which
+ (1) Is capable of seamlessly and automatically transitioning among
+ multiple performance states (potentially operating at different
+ efficiency ratings) based upon power source changes, END user
+ preference, processor performance demand, and thermal conditions; and
+ (2) Includes an Intel Pentium II processors, Intel Pentium III
+ processor, Mobile Intel Pentium III Processor-M, Mobile Intel Pentium 4
+ Processor-M, Intel Pentium M Processor, or any other future Intel
+ processors that incorporates the capability to transition between
+ different performance states by altering some, or any combination of,
+ the following processor attributes: core voltage, core frequency, bus
+ frequency, number of processor cores available, or any other attribute
+ that changes the efficiency (instructions/unit time-power) at which the
+ processor operates.
+-------------------------------------------------------------------------------
+
+NOTES:
+ (1) <TODO> - Except for the SSDT package, the objects in this ASL code
+ may be moved to the DSDT. It is kept separate in this reference package
+ for ease of distribution only.
+------------------------------------------------------------------------------*/
+
+DefinitionBlock (
+ "CPUPM.aml",
+ "SSDT",
+ 0x01,
+ "PmRef",
+ "CpuPm",
+ 0x3000
+ )
+{
+ External(\_PR.CPU0, DeviceObj)
+ External(\_PR.CPU1, DeviceObj)
+ External(\_PR.CPU2, DeviceObj)
+ External(\_PR.CPU3, DeviceObj)
+ External(SMIF)
+
+ Scope(\)
+ {
+
+ // Package of pointers to SSDT's
+ //
+ // First column is SSDT name, used for debug only.
+ // (First column must be EXACTLY eight characters.)
+ // Second column is physical address.
+ // Third column is table length.
+ //
+ // IF modifying this file, see warnings listed in ppminit.asm.
+ //
+ Name(SSDT,Package()
+ {
+ "CPU0IST ", 0x80000000, 0x80000000,
+ "APIST ", 0x80000000, 0x80000000,
+ "CPU0CST ", 0x80000000, 0x80000000,
+ "APCST ", 0x80000000, 0x80000000
+ })
+
+ //
+ // Note: See PpmBiosInit in PPMINIT.ASM for a definition of
+ // the PpmFlags mirrored in CFGD.
+ //
+ Name(CFGD, 0x80000000)
+
+ Name(\PDC0,0x80000000) // CPU0 _PDC Flags.
+ Name(\PDC1,0x80000000) // CPU1 _PDC Flags.
+ Name(\PDC2,0x80000000) // CPU2 _PDC Flags.
+ Name(\PDC3,0x80000000) // CPU3 _PDC Flags.
+ Name(\SDTL,0x00) // Loaded SSDT Flags.
+ }
+
+ Scope(\_PR.CPU0)
+ {
+ //
+ // Define handles for opregions (used by load.)
+ //
+ Name(HI0,0) // Handle to CPU0IST
+ Name(HC0,0) // Handle to CPU0CST
+
+ Method(_PDC,1)
+ {
+ //
+ // Check and extract the _PDC information.
+ //
+ Store(CPDC(Arg0), Local0)
+ //
+ // Save the capability information and load tables as needed.
+ //
+ GCAP(Local0)
+ //
+ // Return status.
+ //
+ //Return (Local0)
+ }
+
+ Method(_OSC, 4)
+ {
+ //
+ // Check and extract the _OSC information.
+ //
+ Store(COSC(Arg0, Arg1, Arg2, Arg3), Local0)
+ //
+ // Save the capability information and load tables as needed.
+ //
+ GCAP(Local0)
+ //
+ // Return status.
+ //
+ Return (Local0)
+ }
+
+ //
+ // Implement a generic Method to check _PDC information which may be called
+ // by any of the processor scopes. (The use of _PDC is deprecated in ACPI 3.
+ // in favor of _OSC. However, for backwards compatibility, _PDC may be
+ // implemented using _OSC as follows:)
+ //
+ Method(CPDC,1)
+ {
+ CreateDwordField (Arg0, 0, REVS)
+ CreateDwordField (Arg0, 4, SIZE)
+
+ //
+ // Local0 = Number of bytes for Arg0
+ //
+ Store (SizeOf (Arg0), Local0)
+
+ //
+ // Local1 = Number of Capabilities bytes in Arg0
+ //
+ Store (Subtract (Local0, 8), Local1)
+
+ //
+ // TEMP = Temporary field holding Capability DWORDs
+ //
+ CreateField (Arg0, 64, Multiply (Local1, 8), TEMP)
+
+ //
+ // Create the Status (STAT) buffer with the first DWORD = 0
+ // This is required as per ACPI 3.0 Spec which says the
+ // first DWORD is used to return errors defined by _OSC.
+ //
+ Name (STS0, Buffer () {0x00, 0x00, 0x00, 0x00})
+
+ //
+ // Concatenate the _PDC capabilities bytes to the STS0 Buffer
+ // and store them in a local variable for calling OSC
+ //
+ Concatenate (STS0, TEMP, Local2)
+
+ Return(COSC (ToUUID("4077A616-290C-47BE-9EBD-D87058713953"), REVS, SIZE, Local2))
+ }
+
+ //
+ // Implement a generic Method to check _OSC information which may be called
+ // by any of the processor scopes.
+ //
+ Method(COSC, 4)
+ {
+ //
+ // Point to Status DWORD in the Arg3 buffer (STATUS)
+ //
+ CreateDWordField(Arg3, 0, STS0)
+ //
+ // Point to Caps DWORDs of the Arg3 buffer (CAPABILITIES)
+ //
+ CreateDwordField(Arg3, 4, CAP0)
+
+ //
+ // _OSC needs to validate the UUID and Revision.
+ //
+ // IF Unrecognized UUID
+ // Return Unrecognized UUID _OSC Failure
+ // IF Unsupported Revision
+ // Return Unsupported Revision _OSC Failure
+ //
+ // STS0[0] = Reserved
+ // STS0[1] = _OSC Failure
+ // STS0[2] = Unrecognized UUID
+ // STS0[3] = Unsupported Revision
+ // STS0[4] = Capabilities masked
+ //
+ // Note: The comparison method used is necessary due to
+ // limitations of certain OSes which cannot perform direct
+ // buffer comparisons.
+ //
+ // Create a set of "Input" UUID fields.
+ //
+ CreateDwordField(Arg0, 0x0, IID0)
+ CreateDwordField(Arg0, 0x4, IID1)
+ CreateDwordField(Arg0, 0x8, IID2)
+ CreateDwordField(Arg0, 0xC, IID3)
+ //
+ // Create a set of "Expected" UUID fields.
+ //
+ Name(UID0, ToUUID("4077A616-290C-47BE-9EBD-D87058713953"))
+ CreateDwordField(UID0, 0x0, EID0)
+ CreateDwordField(UID0, 0x4, EID1)
+ CreateDwordField(UID0, 0x8, EID2)
+ CreateDwordField(UID0, 0xC, EID3)
+ //
+ // Verify the input UUID matches the expected UUID.
+ //
+ If(LNot(LAnd(LAnd(LEqual(IID0, EID0),LEqual(IID1, EID1)),LAnd(LEqual(IID2, EID2),LEqual(IID3, EID3)))))
+ {
+ //
+ // Return Unrecognized UUID _OSC Failure
+ //
+ Store (0x6, STS0)
+ Return (Arg3)
+ }
+
+ If(LNot(LEqual(Arg1,1)))
+ {
+ //
+ // Return Unsupported Revision _OSC Failure
+ //
+ Store (0xA, STS0)
+ Return (Arg3)
+ }
+
+ Return (Arg3)
+ }
+
+ //
+ // Get the capability information and load appropriate tables as needed.
+ //
+ Method(GCAP, 1)
+ {
+
+ // Point to Status DWORD in the Arg0 buffer (STATUS)
+ CreateDWordField(Arg0, 0, STS0)
+
+ // Point to Caps DWORDs of the Arg0 buffer (CAPABILITIES)
+ CreateDwordField(Arg0, 4, CAP0)
+
+ //
+ // If the UUID was unrecognized or the _OSC revision was unsupported,
+ // return without updating capabilities.
+ //
+ If(LOr(LEqual(STS0,0x6),LEqual(STS0,0xA)))
+ {
+ Return()
+ }
+
+ //
+ // Check if this is a query (BIT0 of Status = 1).
+ // If so, mask off the bits we support and return.
+ //
+ if (And(STS0, 1))
+ {
+ And(CAP0, 0xBFF, CAP0)
+ Return()
+ }
+
+ //
+ // Store result of PDC. (We clear out the MSB, which was just
+ // used as a placeholder for the compiler; and then "OR" the
+ // value in case we get multiple calls, each of which only
+ // reports partial support.)
+ //
+ Or(And(PDC0, 0x7FFFFFFF), CAP0, PDC0)
+
+ //
+ // Check IF the IST SSDTs should be loaded.
+ //
+ // CFGD[0] = GV3 Capable/Enabled
+ //
+ If(And(CFGD,0x01))
+ {
+ //
+ // Load the IST SSDTs if:
+ // (1) CMP capable and enabled.
+ // (2) Driver supports P-States in MP configurations
+ // (3) Driver supports direct HW P-State control
+ // (4) SSDT is not already loaded
+ //
+ // CFGD[24] = Two or more cores enabled
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[0] = OS supports direct access of the perf MSR
+ // SDTL[0] = CPU0 IST SSDT Loaded
+ //
+ If(LAnd(LAnd(And(CFGD,0x01000000),LEqual(And(PDC0, 0x0009), 0x0009)),LNot(And(SDTL,0x01))))
+ {
+ //
+ // Flag the IST SSDT as loaded for CPU0
+ //
+ Or(SDTL, 0x01, SDTL)
+
+ OperationRegion(IST0,SystemMemory,DeRefOf(Index(SSDT,1)),DeRefOf(Index(SSDT,2)))
+ Load(IST0, HI0) // Dynamically load the CPU0IST SSDT
+ }
+ }
+
+ //
+ // Check IF the CST SSDTs should be loaded.
+ //
+ // CFGD[11,7,2,1] = C6, C4, C1E, C1 Capable/Enabled
+ //
+ If(And(CFGD,0x82))
+ {
+ //
+ // Load the CST SSDTs if:
+ // (1) CMP capable/enabled
+ // (2) Driver supports multi-processor configurations
+ // (3) CPU0 CST ISDT is not already loaded
+ //
+ // CFGD[24] = Two or more cores enabled
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[4] = OS supports ind. C2/C3 in MP systems
+ // SDTL[1] = CPU0 CST SSDT Loaded
+ //
+ If(LAnd(LAnd(And(CFGD,0x01000000),And(PDC0,0x0018)),LNot(And(SDTL,0x02))))
+ {
+ //
+ // Flag the CST SSDT as loaded for CPU0
+ //
+ Or(SDTL, 0x02, SDTL)
+
+ OperationRegion(CST0,SystemMemory,DeRefOf(Index(SSDT,7)),DeRefOf(Index(SSDT,8)))
+ Load(CST0, HC0) // Dynamically load the CPU0CST SSDT
+ }
+ }
+
+ Return ()
+ }
+ }
+
+
+ Scope(\_PR.CPU1)
+ {
+ //
+ // Define handles for opregions (used by load.)
+ //
+ Name(HI1,0) // Handle to APIST
+ Name(HC1,0) // Handle to APCST
+
+ Method(_PDC,1)
+ {
+ //
+ // Refer to \_PR.CPU0._PDC for description.
+ //
+ Store(\_PR.CPU0.CPDC(Arg0), Local0)
+ GCAP(Local0)
+ //Return (Local0)
+ }
+
+ Method(_OSC, 4)
+ {
+ //
+ // Refer to \_PR.CPU0._OSC for description.
+ //
+ Store(\_PR.CPU0.COSC(Arg0, Arg1, Arg2, Arg3), Local0)
+ GCAP(Local0)
+ Return (Local0)
+ }
+
+ //
+ // Get the capability information and load appropriate tables as needed.
+ //
+ Method(GCAP, 1)
+ {
+ //
+ // Point to Status DWORD in the Arg0 buffer (STATUS)
+ //
+ CreateDWordField(Arg0, 0, STS1)
+ //
+ // Point to Caps DWORDs of the Arg0 buffer (CAPABILITIES)
+ //
+ CreateDwordField(Arg0, 4, CAP1)
+ //
+ // If the UUID was unrecognized or the _OSC revision was unsupported,
+ // return without updating capabilities.
+ //
+ If(LOr(LEqual(STS1,0x6),LEqual(STS1,0xA)))
+ {
+ Return()
+ }
+
+ //
+ // Check if this is a query (BIT0 of Status = 1).
+ // If so, mask off the bits we support and return.
+ //
+ if (And(STS1, 1))
+ {
+ And(CAP1, 0xBFF, CAP1)
+ Return()
+ }
+
+ //
+ // Store result of PDC. (We clear out the MSB, which was just
+ // used as a placeholder for the compiler; and then "OR" the
+ // value in case we get multiple calls, each of which only
+ // reports partial support.)
+ //
+ Or(And(PDC1, 0x7FFFFFFF), CAP1, PDC1)
+
+ //
+ // Attempt to dynamically load the IST SSDTs if:
+ // (1) Driver supports P-States in MP configurations
+ // (2) Driver supports direct HW P-State control
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[0] = OS supports direct access of the perf MSR
+ //
+ If(LEqual(And(PDC0, 0x0009), 0x0009))
+ {
+ APPT()
+ }
+
+ //
+ // Load the CST SSDTs if:
+ // (1) Driver supports multi-processor configurations
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[4] = OS supports ind. C2/C3 in MP systems
+ //
+ If(And(PDC0,0x0018))
+ {
+ APCT()
+ }
+
+ Return()
+ }
+
+ //
+ // Dynamically load the CST SSDTs if:
+ // (1) C-States are enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[11,7,2,1] = C6, C4, C1E, C1 Capable/Enabled
+ // SDTL[5] = AP CST SSDT Loaded
+ //
+ Method(APCT,0)
+ {
+ If(LAnd(And(CFGD,0x82),LNot(And(SDTL,0x20))))
+ {
+ //
+ // Flag the CST SSDT as loaded for the AP's
+ //
+ Or(SDTL, 0x20, SDTL)
+ //
+ // Dynamically load the APCST SSDT
+ //
+ OperationRegion(CST1,SystemMemory,DeRefOf(Index(SSDT,10)),DeRefOf(Index(SSDT,11)))
+ Load(CST1, HC1)
+ }
+ }
+
+ //
+ // Dynamically load the IST SSDTs if:
+ // (1) If GV3 capable and enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[0] = GV3 Capable/Enabled
+ // SDTL[4] = AP IST SSDT Loaded
+ //
+ Method(APPT,0)
+ {
+ If(LAnd(And(CFGD,0x01),LNot(And(SDTL,0x10))))
+ {
+ //
+ // Flag the IST SSDT as loaded for CPU0
+ //
+ Or(SDTL, 0x10, SDTL)
+
+ OperationRegion(IST1,SystemMemory,DeRefOf(Index(SSDT,4)),DeRefOf(Index(SSDT,5)))
+ Load(IST1, HI1) // Dynamically load the CPU1IST SSDT
+ }
+ }
+ } // End CPU1
+
+ Scope(\_PR.CPU2)
+ {
+ //
+ // Define handles for opregions (used by load.)
+ //
+ Name(HI1,0) // Handle to APIST
+ Name(HC1,0) // Handle to APCST
+
+ Method(_PDC,1)
+ {
+ //
+ // Refer to \_PR.CPU0._PDC for description.
+ //
+ Store(\_PR.CPU0.CPDC(Arg0), Local0)
+ GCAP(Local0)
+ //Return (Local0)
+ }
+
+ Method(_OSC, 4)
+ {
+ //
+ // Refer to \_PR.CPU0._OSC for description.
+ //
+ Store(\_PR.CPU0.COSC(Arg0, Arg1, Arg2, Arg3), Local0)
+ GCAP(Local0)
+ Return (Local0)
+ }
+
+ //
+ // Get the capability information and load appropriate tables as needed.
+ //
+ Method(GCAP, 1)
+ {
+ //
+ // Point to Status DWORD in the Arg0 buffer (STATUS)
+ //
+ CreateDWordField(Arg0, 0, STS1)
+ //
+ // Point to Caps DWORDs of the Arg0 buffer (CAPABILITIES)
+ //
+ CreateDwordField(Arg0, 4, CAP1)
+ //
+ // If the UUID was unrecognized or the _OSC revision was unsupported,
+ // return without updating capabilities.
+ //
+ If(LOr(LEqual(STS1,0x6),LEqual(STS1,0xA)))
+ {
+ Return()
+ }
+
+ //
+ // Check if this is a query (BIT0 of Status = 1).
+ // If so, mask off the bits we support and return.
+ //
+ if (And(STS1, 1))
+ {
+ And(CAP1, 0xBFF, CAP1)
+ Return()
+ }
+
+ //
+ // Store result of PDC. (We clear out the MSB, which was just
+ // used as a placeholder for the compiler; and then "OR" the
+ // value in case we get multiple calls, each of which only
+ // reports partial support.)
+ //
+ Or(And(PDC1, 0x7FFFFFFF), CAP1, PDC1)
+
+ //
+ // Attempt to dynamically load the IST SSDTs if:
+ // (1) Driver supports P-States in MP configurations
+ // (2) Driver supports direct HW P-State control
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[0] = OS supports direct access of the perf MSR
+ //
+ If(LEqual(And(PDC0, 0x0009), 0x0009))
+ {
+ APPT()
+ }
+
+ //
+ // Load the CST SSDTs if:
+ // (1) Driver supports multi-processor configurations
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[4] = OS supports ind. C2/C3 in MP systems
+ //
+ If(And(PDC0,0x0018))
+ {
+ APCT()
+ }
+
+ Return()
+ }
+
+ //
+ // Dynamically load the CST SSDTs if:
+ // (1) C-States are enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[11,7,2,1] = C6, C4, C1E, C1 Capable/Enabled
+ // SDTL[5] = AP CST SSDT Loaded
+ //
+ Method(APCT,0)
+ {
+ If(LAnd(And(CFGD,0x82),LNot(And(SDTL,0x20))))
+ {
+ //
+ // Flag the CST SSDT as loaded for the AP's
+ //
+ Or(SDTL, 0x20, SDTL)
+ //
+ // Dynamically load the APCST SSDT
+ //
+ OperationRegion(CST1,SystemMemory,DeRefOf(Index(SSDT,10)),DeRefOf(Index(SSDT,11)))
+ Load(CST1, HC1)
+ }
+ }
+
+ //
+ // Dynamically load the IST SSDTs if:
+ // (1) If GV3 capable and enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[0] = GV3 Capable/Enabled
+ // SDTL[4] = AP IST SSDT Loaded
+ //
+ Method(APPT,0)
+ {
+ If(LAnd(And(CFGD,0x01),LNot(And(SDTL,0x10))))
+ {
+ //
+ // Flag the IST SSDT as loaded for CPU0
+ //
+ Or(SDTL, 0x10, SDTL)
+
+ OperationRegion(IST1,SystemMemory,DeRefOf(Index(SSDT,4)),DeRefOf(Index(SSDT,5)))
+ Load(IST1, HI1) // Dynamically load the CPU1IST SSDT
+ }
+ }
+ } // End CPU1
+
+ Scope(\_PR.CPU3)
+ {
+ //
+ // Define handles for opregions (used by load.)
+ //
+ Name(HI1,0) // Handle to APIST
+ Name(HC1,0) // Handle to APCST
+
+ Method(_PDC,1)
+ {
+ //
+ // Refer to \_PR.CPU0._PDC for description.
+ //
+ Store(\_PR.CPU0.CPDC(Arg0), Local0)
+ GCAP(Local0)
+ //Return (Local0)
+ }
+
+ Method(_OSC, 4)
+ {
+ //
+ // Refer to \_PR.CPU0._OSC for description.
+ //
+ Store(\_PR.CPU0.COSC(Arg0, Arg1, Arg2, Arg3), Local0)
+ GCAP(Local0)
+ Return (Local0)
+ }
+
+ //
+ // Get the capability information and load appropriate tables as needed.
+ //
+ Method(GCAP, 1)
+ {
+ //
+ // Point to Status DWORD in the Arg0 buffer (STATUS)
+ //
+ CreateDWordField(Arg0, 0, STS1)
+ //
+ // Point to Caps DWORDs of the Arg0 buffer (CAPABILITIES)
+ //
+ CreateDwordField(Arg0, 4, CAP1)
+ //
+ // If the UUID was unrecognized or the _OSC revision was unsupported,
+ // return without updating capabilities.
+ //
+ If(LOr(LEqual(STS1,0x6),LEqual(STS1,0xA)))
+ {
+ Return()
+ }
+
+ //
+ // Check if this is a query (BIT0 of Status = 1).
+ // If so, mask off the bits we support and return.
+ //
+ if (And(STS1, 1))
+ {
+ And(CAP1, 0xBFF, CAP1)
+ Return()
+ }
+
+ //
+ // Store result of PDC. (We clear out the MSB, which was just
+ // used as a placeholder for the compiler; and then "OR" the
+ // value in case we get multiple calls, each of which only
+ // reports partial support.)
+ //
+ Or(And(PDC1, 0x7FFFFFFF), CAP1, PDC1)
+
+ //
+ // Attempt to dynamically load the IST SSDTs if:
+ // (1) Driver supports P-States in MP configurations
+ // (2) Driver supports direct HW P-State control
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[0] = OS supports direct access of the perf MSR
+ //
+ If(LEqual(And(PDC0, 0x0009), 0x0009))
+ {
+ APPT()
+ }
+
+ //
+ // Load the CST SSDTs if:
+ // (1) Driver supports multi-processor configurations
+ //
+ // PDCx[3] = OS supports C1 and P-states in MP systems
+ // PDCx[4] = OS supports ind. C2/C3 in MP systems
+ //
+ If(And(PDC0,0x0018))
+ {
+ APCT()
+ }
+
+ Return()
+ }
+
+ //
+ // Dynamically load the CST SSDTs if:
+ // (1) C-States are enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[11,7,2,1] = C6, C4, C1E, C1 Capable/Enabled
+ // SDTL[5] = AP CST SSDT Loaded
+ //
+ Method(APCT,0)
+ {
+ If(LAnd(And(CFGD,0x82),LNot(And(SDTL,0x20))))
+ {
+ //
+ // Flag the CST SSDT as loaded for the AP's
+ //
+ Or(SDTL, 0x20, SDTL)
+ //
+ // Dynamically load the APCST SSDT
+ //
+ OperationRegion(CST1,SystemMemory,DeRefOf(Index(SSDT,10)),DeRefOf(Index(SSDT,11)))
+ Load(CST1, HC1)
+ }
+ }
+
+ //
+ // Dynamically load the IST SSDTs if:
+ // (1) If GV3 capable and enabled
+ // (2) SSDT is not already loaded
+ //
+ // CFGD[0] = GV3 Capable/Enabled
+ // SDTL[4] = AP IST SSDT Loaded
+ //
+ Method(APPT,0)
+ {
+ If(LAnd(And(CFGD,0x01),LNot(And(SDTL,0x10))))
+ {
+ //
+ // Flag the IST SSDT as loaded for CPU0
+ //
+ Or(SDTL, 0x10, SDTL)
+
+ OperationRegion(IST1,SystemMemory,DeRefOf(Index(SSDT,4)),DeRefOf(Index(SSDT,5)))
+ Load(IST1, HI1) // Dynamically load the CPU1IST SSDT
+ }
+ }
+ } // End CPU3
+} // End of Definition Block
+
+
+
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