alder_lake_bios/Intel/AlderLake/AlderLakeChipsetPkg/HybridGraphicsAcpi/N17/NvidiaUltOptimus/Optimus.asl

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/** @file
;******************************************************************************
;* Copyright (c) 2019, Insyde Software Corp. All Rights Reserved.
;*
;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
;* transmit, broadcast, present, recite, release, license or otherwise exploit
;* any part of this publication in any form, by any means, without the prior
;* written permission of Insyde Software Corporation.
;*
;******************************************************************************
*/
Scope (DGPU_BRIDGE_SCOPE)
{
OperationRegion (RPCX, SystemMemory, PCI_SCOPE.DGBA, 0x1000) // Bridge
Field (RPCX, DWordAcc, NoLock, Preserve)
{
Offset (0x04), // Command Register
CMDR, 8,
Offset (0x4A), // Device Status Register
CEDR, 1,
Offset (0x69), // Device Control2 Register
, 2,
LREN, 1,
Offset (0xA4),
D0ST, 2,
}
}
Scope (DGPU_SCOPE)
{
OperationRegion (PCNV, SystemMemory, PCI_SCOPE.DGDA, 0x1000) // dGPU
Field (PCNV, DWordAcc, NoLock, Preserve)
{
Offset (0x4),
CMDR, 8,
VGAR, 2008,
Offset (0x488),
, 25,
HDAE, 1, // HDA Multifunction bit Register
}
OperationRegion (DGPU, SystemMemory, PCI_SCOPE.DGDA, 0x100)
Field (DGPU, DWordAcc, NoLock, Preserve)
{
Offset (0x40), // Offset (64)
SSSV, 32
}
// OperationRegion (PCAP, PCI_Config, EECP, 0x14)
// Field (PCAP, DWordAcc, NoLock, Preserve)
// {
// Offset (0xC), // Offset (12),
// , 4,
// EMLW, 6,
// Offset (0x10), // Offset (16),
// LCTL, 16
// }
Name (VGAB, Buffer(0xFB)
{
0x00
})
Name (LTRE, Zero) // Buffer for LTR Save/Restore
Method (_STA, 0, Serialized)
{
Return (0x0F) // For Optimus function, always return DGPU is powered-ON
}
Method (_PS0, 0x0)
{
If (LNotEqual (DGPS, Zero))
{
PCI_SCOPE.HGON (Zero) // IBV_customize: call to dGPU ON method
If (LNotEqual (GPRF, One))
{
Store (VGAB, VGAR)
}
Or (And (PCI_SCOPE.ELCT, 0x43), And (PCI_SCOPE.LCTR, 0xFFBC), PCI_SCOPE.LCTR)
Store (Zero, DGPS)
Store (Zero, HDAE) // Disable dGPU HDA device in _PS0 anyway
}
}
Method (_PS3, 0x0)
{
If (LEqual (OMPR, 0x3))
{
Store (PCI_SCOPE.LCTR, PCI_SCOPE.ELCT)
If (LNotEqual (GPRF, One))
{
Store (VGAR, VGAB)
}
PCI_SCOPE.HGOF (Zero) // IBV_customize: call to dGPU OFF method
Store (One, DGPS)
Store (0x2, OMPR)
}
}
Method (GOBT, 1)
{
Name (OPVK, Buffer()
{
// Key below is *NOT A REAL KEY*, it is for reference
// Customer need to ask NVIDIA PM to get the key
// Customer need to put the key in between labels "// key start -" and
// "// key end -". Please consult NVIDIA PM if any issues
// Key start -
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00
// Key end -
})
CreateWordField (Arg0, 2, USRG) // Object type signature passed in by driver.
If (LEqual (USRG, 0x564B)) {
Return (OPVK) // 'VK' for Optimus Validation Key Object.
}
Return (Zero)
}
Name (DGPS, Zero) // DGPU Power Status 0:on 1:off
Name (OMPR, 0x2) // Optimus MXM Power-Control Ready
Name (DPST, One)
Name (GPRF, Zero)
Method (NVOP, 4, Serialized) // Called from Method (_DSM)
{
// Only Interface Revision 0x0100 is supported
If (LNotEqual (Arg1, 0x100))
{
Return (STATUS_ERROR_UNSPECIFIED)
}
// (Arg2) Sub-Function
Switch (ToInteger (Arg2))
{
//
// Function 0: NVOP_FUNC_SUPPORT - Bit list of supported functions.
//
case (NVOP_FUNC_SUPPORT)
{
/*
Store (Buffer(4) {0, 0, 0, 0}, Local0)
Divide (NVOP_FUNC_SUPPORT, 8, Local2, Local1) // Function 0
// Local1 is Quotient, Local2 is Remainder
ShiftLeft (0x01, Local2, Local2)
Or (DeRefOf (Index (Local0, Local1)), Local2, Index (Local0, Local1))
Divide (NVOP_FUNC_OPTIMUSCAPS, 8, Local2, Local1) // Function 0x1A
ShiftLeft (0x01, Local2, Local2)
Or (DeRefOf (Index (Local0, Local1)), Local2, Index (Local0, Local1))
// force IGPU
Divide (NVOP_FUNC_OPTIMUSFLAGS, 8, Local2, Local1) // Function 0x1B
ShiftLeft (0x01, Local2, Local2)
Or( DeRefOf(Index(Local0, Local1)), Local2, Index(Local0, Local1))
// Force IGPU
Divide (NVOP_FUNC_GETOBJBYTYPE, 8, Local2, Local1) // Function 0x10
ShiftLeft (0x01, Local2, Local2)
Or (DeRefOf (Index(Local0, Local1)), Local2, Index (Local0, Local1))
Divide (NVOP_FUNC_MDTL, 8, Local2, Local1) // Function 0x06
ShiftLeft(0x01, Local2, Local2)
Or (DeRefOf (Index (Local0, Local1)), Local2, Index (Local0, Local1))
Divide (NVOP_FUNC_DISPLAYSTATUS, 8, Local2, Local1) // Function 0x05
ShiftLeft (0x01, Local2, Local2)
Or (DeRefOf (Index (Local0, Local1)), Local2, Index (Local0, Local1))
Return (Local0)
*/
Return (Buffer(0x04)
{
// sub-func: 0, 5, 6, 16, 26, 27 supported
0x61, 0x00, 0x01, 0x0C
})
}
//
// Function 5: NVOP_FUNC_DISPLAYSTATUS - Query the Display Hot-Key.
//
case (NVOP_FUNC_DISPLAYSTATUS)
{
CreateField (Arg3, 31, 1, NCSM) // Check the next combination sequence mask bit 31.
Store (0, Local0)
If (LEqual (ToInteger (NCSM), 0x1))
{
CreateField (Arg3, 25, 5,NCIN) // Get the next combination sequence number bit 29:25
Store (ToInteger (NCIN), DPST) // Store the current valid value from driver
Add (DPST, 1, DPST) // Add 1 to it because SBIOS needs to give the next combination sequence
Mod (DPST, 18, Local0)
}
Else
{
If (LEqual (DPST, 0x0))
{
// SBIOS sequence number should not return index 0
Add (DPST, 1, DPST)
}
// Just for testing, display status is implemented without the logic of attach and active display
Mod (DPST, 18, Local0)
ShiftLeft (Local0, 0x8, Local0) // Shift left 8 bits because display status is between bit 8:13
Add (DPST, 1, DPST)
}
Return (Local0)
}
//
// Function 6: NVOP_FUNC_MDTL - Query Display Toggle List.
//
case (NVOP_FUNC_MDTL)
{
// Display Toggle List
Name (TMP6, Package()
{
ones, 0x2C, // LVDS
ones, 0x2C, // CRT
ones, 0x2C, // HDMI
ones, ones, 0x2C, // LVDS + CRT
ones, ones, 0x2C, // LVDS + HDMI
ones, ones, 0x2C // CRT + HDMI
})
// Update Display Toggle List
Store (DID2, Index (TMP6, 0)) // LVDS
Store (DID1, Index (TMP6, 2)) // CRT
Store (DID4, Index (TMP6, 4)) // HDMI
Store (DID2, Index (TMP6, 6)) // LVDS + CRT
Store (DID1, Index (TMP6, 7))
Store (DID2, Index (TMP6, 9)) // LVDS + HDMI
Store (DID4, Index (TMP6, 10))
Store (DID1, Index (TMP6, 12)) // CRT + HDMI
Store (DID4, Index (TMP6, 13))
Return (TMP6)
}
//
// Function 16: NVOP_FUNC_GETOBJBYTYPE - Get Data Object.
//
case (NVOP_FUNC_GETOBJBYTYPE)
{
Return (DGPU_SCOPE.GOBT (Arg3))
}
//
// Function 26: NVOP_FUNC_OPTIMUSCAPS - Optimus Capabilities.
//
case (NVOP_FUNC_OPTIMUSCAPS)
{
CreateField (Arg3, 0, 1, FLCH)
CreateField (Arg3, 1, 1, DVSR) // Modify Optimus DSM 0x1A for GC6 TDR support.
CreateField (Arg3, 2, 1, DVSC) // Modify Optimus DSM 0x1A for GC6 TDR support.
CreateField (Arg3, 24, 2, OPCE)
If (LAnd (ToInteger (FLCH), LNotEqual (ToInteger (OPCE), OMPR)))
{
Store (ToInteger (OPCE), OMPR) // Optimus Power Control Enable - From DD
}
// Definition of return buffer.
// bit 0 - Optimus Enabled
// 0 : Optimus Graphics Disabled
// 1 : Optimus Graphics Enabled (default)
// bit 4:3 - Current GPU Control Status
// 0 : GPU is powered off
// 3 : GPU power has stabilized (default)
// bit 6 - Shared discrete GPU Hot-Plug Capabilities
// 1 : There are discrete GPU Display Hot-Plug signals co-connected to the platform
// bit 8 - PCIe Configuration Space Owner Actual
// 0 : SBIOS
// 1 : GPU Driver
// bit 26:24 - Optimus Capabilities
// 0 : No special platform capabilities
// 1 : Platform has dynamic GPU power control
// bit 27:28 - Optimus HD Audio Codec Capabilities
// 0 : No audio codec-related capabilities
// 1 : Platform does not use HD audio
// 2 : Platform supports Optimus dynamic codec control
Store (Buffer(4) {0, 0, 0, 0}, Local0)
CreateField (Local0, 0, 1, OPEN)
CreateField (Local0, 3, 2, CGCS)
CreateField (Local0, 6, 1, SHPC) // Shared discrete GPU Hot-Plug Capabilities
CreateField (Local0, 8, 1, SNSR) // Modify Optimus DSM 0x1A for GC6 TDR support.
CreateField (Local0, 24, 3, DGPC) // Optimus Power Capabilities
CreateField (Local0, 27, 2, OHAC) // Optimus HD Audio Codec Capabilities
Store (One, OPEN) // Optimus Enabled
Store (One, SHPC) // Set '1' indicates there are discrete GPU Display Hot-Plug signals co-connected to the platform
Store (One, DGPC) // Optimus Power Capabilities
// 0: No special platform capabilities
// 1: Dynamic GPU Power Control
Store (0x2, OHAC) // Optimus HD Audio Codec Capabilities
// 0: No audio codec-related capabilities
// 1: Platform does not use HD audio (SBIOS will always disable audio codecs)
// 2: Optimus dynamic codec control
// 3: Dynamic power state reporting
If (ToInteger (DVSC))
{
If (ToInteger (DVSR))
{
Store (One, GPRF)
}
Else
{
Store (Zero, GPRF)
}
}
Store (GPRF, SNSR)
If (LEqual (DGPS, Zero)) // IBV_customize: root port path
{
Store (0x3, CGCS) // Current GPU Control status: On
}
Else
{
Store (0x0, CGCS) // Current GPU Control status: Off
}
Return (Local0)
}
//
// Function 27: NVOP_FUNC_OPTIMUSFLAGS - Optimus State flags.
//
case (NVOP_FUNC_OPTIMUSFLAGS)
{
Store (Arg3, Local0)
CreateField (Local0, 0, 1, OPFL)
CreateField (Local0, 1, 1, OPVL)
If (ToInteger (OPVL))
{
Store (Zero, OPTF)
If (ToInteger (OPFL))
{
Store(One, OPTF)
}
}
Store (OPTF, Local0)
Return (Local0)
}
default
{
//
// FunctionCode or SubFunctionCode not supported
//
Return (STATUS_ERROR_UNSUPPORTED)
}
}
}
//
// dGPU just output to HDMI in Optimus HW artchetecture
//
Method (_DOD, 0, NotSerialized)
{
Return (Package(0x01) {ACPI_ID_HDMI})
}
// method : _ROM
// Arguments:
// Arg0: Integer Offset of the graphics device ROM data
// Arg1: Integer Size of the buffer to fill in (up to 4K)
//
// Return Value:
// Returns Buffer Buffer of requested video ROM bytes
Method (_ROM, 2)
{
Store (Arg0, Local0)
Store (Arg1, Local1)
Name (VROM, Buffer(Local1) {0x00}) // Create 4K buffer to return to DD
If (LGreater (Local1, 0x1000))
{
Store (0x1000, Local1) // Return dummy buffer if asking for more than 4K
}
If (LGreater (Arg0, RVBS))
{
Return (VROM) // Return dummy buffer if asking beyond VBIOS image
}
Add (Arg0, Arg1, Local2)
If (LGreater (Local2, RVBS)) // If requested BASE+LEN > VBIOS image size
{
Subtract (RVBS, Local0, Local1) // Limit length to the final chunk of VBIOS image
}
Divide (Local0, 0x8000, Local3, Local4) // (Dividend, Divisor, Remainder, Result)
Switch (Local4)
{
Case (0)
{
Store (DGPU_SCOPE.VBS1, Local5)
}
Case (1)
{
Store (DGPU_SCOPE.VBS2, Local5)
}
Case (2)
{
Store (DGPU_SCOPE.VBS3, Local5)
}
Case (3)
{
Store (DGPU_SCOPE.VBS4, Local5)
}
Case (4)
{
Store (DGPU_SCOPE.VBS5, Local5)
}
Case (5)
{
Store (DGPU_SCOPE.VBS6, Local5)
}
Case (6)
{
Store (DGPU_SCOPE.VBS7, Local5)
}
Case (7)
{
Store (DGPU_SCOPE.VBS8, Local5)
}
}
Multiply (0x8000, Local4, Local4) // (Multiplicand, Multiplier, Result)
Subtract (Local0, Local4, Local0)
Mid (Local5, Local0, Local1, VROM)
Return (VROM)
}
Method (MXMX, 1, Serialized)
{
If (LEqual (Arg0, Zero))
{
// Acquire DDC/AUX mux
// No mutex implemented. No need to acquire mutex.
// Set mux to dGPU
P8XH (One, 0x99)
P8XH (Zero, Zero)
Return (One)
}
If (LEqual (Arg0, One))
{
// Release DDC/AUX mux
// No mutex implemented. No need to release mutex.
// 2-way mux. Hence no need to do anything
P8XH (One, 0x99)
P8XH (Zero, one)
Return (One)
}
If (LEqual (Arg0, 0x02))
{
P8XH (One, 0x99)
P8XH (Zero, 0x02)
// Get ddc/aux mux status for dGPU
}
Return (Zero)
}
Method (MXDS, 1, Serialized)
{
If (LEqual (Arg0, Zero))
{
// Get display mux status for dGPU
}
If (LEqual (Arg0, One))
{
// Set display mux to dGPU
}
Return (Zero)
}
Method (_DSM, 4, SERIALIZED)
{
//
// Check for Nvidia Optimus _DSM UUID
//
// NVOP_DSM_GUID {A486D8F8-0BDA-471B-A72B-6042A6B5BEE0}
If (LEqual (Arg0, ToUUID ("A486D8F8-0BDA-471B-A72B-6042A6B5BEE0")))
{
Return (DGPU_SCOPE.NVOP (Arg0, Arg1, Arg2, Arg3))
}
//
// Check for Nvidia GPS _DSM UUID
//
// GPS_DSM_GUID {A3132D01-8CDA-49BA-A52E-BC9D46DF6B81}
If (LEqual (Arg0, ToUUID ("A3132D01-8CDA-49BA-A52E-BC9D46DF6B81")))
{
If (LNotEqual (DGPU_SCOPE.GPSS, Zero))
{
Return (DGPU_SCOPE.GPS (Arg0, Arg1, Arg2, Arg3))
}
}
//
// Check for Nvidia Optimus GC6 _DSM UUID
//
// GC6_DSM_GUID {CBECA351-067B-4924-9CBD-B46B00B86F34}
If (LEqual (Arg0, ToUUID ("CBECA351-067B-4924-9CBD-B46B00B86F34")))
{
If (LNotEqual (DGPU_SCOPE.GC6S, Zero))
{
Return (DGPU_SCOPE.NVJT (Arg0, Arg1, Arg2, Arg3))
}
}
//
// Check for Nvidia NBCI _DSM UUID
//
// NBCI_DSM_GUID {D4A50B75-65C7-46F7-BFB7-41514CEA0244}
If (LEqual (Arg0, ToUUID ("D4A50B75-65C7-46F7-BFB7-41514CEA0244")))
{
If (LNotEqual (DGPU_SCOPE.NBCS, Zero))
{
Return (DGPU_SCOPE.NBCI (Arg0, Arg1, Arg2, Arg3))
}
}
//
// Check for Nvidia SPB _DSM UUID
//
// SPB_DSM_GUID {95DB88FD-940A-4253-A446-70CE0504AEDF}
If (LEqual (Arg0, ToUUID ("95DB88FD-940A-4253-A446-70CE0504AEDF")))
{
If (LNotEqual (DGPU_SCOPE.VENS, Zero))
{
Return (IGPU_SCOPE.SPB (Arg0, Arg1, Arg2, Arg3))
}
}
If (LEqual (Arg0, ToUUID ("4004A400-917D-4cf2-B89C-79B62FD55665")))
{
Switch (ToInteger (Arg2))
{
//
// Function 0: MXM_FUNC_MXSS
//
case (MXM_FUNC_MXSS)
{
// Sub-Functions 0,16,24 are supported
Return (ToBuffer (0x01010001))
}
//
// Function 24: MXM_FUNC_MXMI
//
case (MXM_FUNC_MXMI)
{
Return (ToBuffer (0x30))
}
//
// Function 16: MXM_FUNC_MXMS
//
case (MXM_FUNC_MXMS)
{
If(LEqual (Arg1, 0x300))
{
If (LNotEqual (MXBS, 0))
{
Name (MXM3, Buffer(MXBS) {0x00})
Store (MXMB, MXM3)
Return (MXM3)
}
}
}
}
Return (STATUS_ERROR_UNSUPPORTED) // MXM_ERROR_UNSUPPORTED - FunctionCode or SubfunctionCode not supported
}
Return (STATUS_ERROR_UNSPECIFIED) // MXM_ERROR_UNSPECIFIED
}
}