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//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
//**********************************************************************
// $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/SwitchableGraphics/Sg TPV/SgTpvDxe.c 4 5/13/14 4:44a Joshchou $
//
// $Revision: 4 $
//
// $Date: 5/13/14 4:44a $
//**********************************************************************
// Revision History
// ----------------
// $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/SwitchableGraphics/Sg TPV/SgTpvDxe.c $
//
// 4 5/13/14 4:44a Joshchou
// [TAG] EIP167034
// [Category] Improvement
// [Description] Review the variable's attribute.
//
// 3 1/15/13 5:02a Joshchou
// [TAG] EIP107237
// [Category] New Feature
// [Description] Support SG function on ULT platform.
//
// 2 9/09/12 11:15p Joshchou
// [TAG] EIPNone
// [Category] New Feature
// [Description] Tpv module support for sharkbay.
// [Files] SgTpv.sdl
// SgTpv.mak
// SgTpvPei.c
// SgTpvPei.dxs
// SgTpvDxe.c
// SgTpvDxe.dxs
// SgTpv.cif
//
// 2 12/06/11 2:15a Alanlin
// [TAG] EIP76248
// [Category] New Feature
// [Description] PX 5.0 feature updated
//
// 1 6/27/11 5:25a Alanlin
// [TAG] EIP61848
// [Category] New Feature
// [Description] Initial check-in.Integrated SwitchableGraphics Intel
// Reference code 0.6.0
// [Files] SgTpv.cif
// SgTpv.sdl
// SgTpv.mak
// SgTpvPei.c
// SgTpvPei.dxs
// SgTpvDxe.c
// SgTpvDxe.dxs
//
//
// 2 9/24/10 5:37p Alexp
// [TAG] EIP43103 --> fix CPU exception error by checking if
// endpoint bus is enabled in PEG root bridge
//
// 1 9/17/10 1:12p Alexp
// [TAG] EIP43103
// [Category] Function Request
// [Severity] Normal
// [Symptom] Initial check-in of SgTPV module
// [RootCause] Request to implement SG reference code .
// [Solution] Initial check-in.
// [Files]
// SgTpv.cif;*.sdl;*.mak;
// SgTpvPei.c;*.dxs;
// SgTpvDxe.c;*.dxs
//
// 2 6/16/10 5:07p Alexp
//
// 1 6/10/10 4:22p Alexp
//
//
//**********************************************************************
//<AMI_FHDR_START>
//----------------------------------------------------------------------------
//
// Name: SgTpvDXE.c
//
// Description: This file contains the etry point of SgTpv Support driver
//
// Notes: MAKE SURE NO PEI OR DXE SPECIFIC CODE IS NEEDED
//
//----------------------------------------------------------------------------
//<AMI_FHDR_END>
//
// External include files do NOT need to be explicitly specified in real EDKII
// environment
//
#if !defined(EDK_RELEASE_VERSION) || (EDK_RELEASE_VERSION < 0x00020000)
#include "EdkIIGlueDxe.h"
#include "EfiScriptLib.h"
#endif
#include <Token.h>
#include <SetupDataDefinition.h>
#include "SaAccess.h"
#include "CpuRegs.h"
#include "CpuPlatformLib.h"
#include "PchRegsPcie.h"
#include EFI_PROTOCOL_PRODUCER (SaPlatformPolicy)
#define AMD_VID 0x1002
#define NVIDIA_VID 0x10DE
#define SETUP_GUID { 0xEC87D643, 0xEBA4, 0x4BB5, 0xA1, 0xE5, 0x3F, 0x3E, 0x36, 0xB2, 0x0D, 0xA9 }
SETUP_DATA SetupDataBuffer;
CPU_FAMILY CpuFamilyId;
//<AMI_PHDR_START>
//----------------------------------------------------------------------------
// Procedure: SgTpvDxeEntryPoint
//
// Description: Entry point of EFI SG Support driver.
//
// Input: EFI_HANDLE ImageHandle,
// EFI_SYSTEM_TABLE *SystemTable
//
// Output: EFI_STATUS
//
// Modified:
//
// Referrals:
//
// Notes:
//----------------------------------------------------------------------------
//<AMI_PHDR_END>
EFI_STATUS
SgTpvDxeEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
DXE_PLATFORM_SA_POLICY_PROTOCOL *DxePlatformSaPolicy;
UINT8 EndpointBus;
EFI_GUID gSetupGuid = SETUP_GUID;
UINTN VariableSize = 0;
UINT8 RootPortDev;
UINT8 RootPortFun;
UINT32 Attributes = 0;
EfiInitializeDriverLib (ImageHandle, SystemTable);
CpuFamilyId = GetCpuFamily();
//
// Locate the SG Policy Protocol
//
Status = gBS->LocateProtocol (
&gDxePlatformSaPolicyGuid,
NULL,
&DxePlatformSaPolicy
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Update SG DXE Policy -
//
// 1 = Load secondary display device VBIOS; 0 = Do not load
//
DxePlatformSaPolicy->VbiosConfig->LoadVbios = LOADVBIOS;
DxePlatformSaPolicy->VbiosConfig->VbiosSource = VBIOSSOURCE;
DxePlatformSaPolicy->VbiosConfig->ExecuteVbios = EXECUTEVBIOS;
#if (defined(SGOEMSSDT_SUPPORT) && (SGOEMSSDT_SUPPORT != 0))
DxePlatformSaPolicy->VbiosConfig->ExecuteVbios = 0;
#endif
//
// Endpoint Base Addresses and Capability Structure Offsets for ASL usage
//
if (CpuFamilyId == EnumCpuHswUlt) {
/// For SwitchableGraphics support the dGPU is present on PCH RootPort
RootPortDev = PCI_DEVICE_NUMBER_PCH_PCIE_ROOT_PORTS;
RootPortFun = SG_ULT_PORT_FUNC;
} else {
/// Assume: For SwitchableGraphics support the dGPU is present on PEG RootPort by default
RootPortDev = SA_PEG10_DEV_NUM;
RootPortFun = SA_PEG10_FUN_NUM;
}
//EndpointBus = McD1PciCfg8 (PCI_SBUS);
EndpointBus = MmPci8 (0, 0, RootPortDev, RootPortFun, PCI_SBUS);
if (EndpointBus != 0xff &&
McDevFunPciCfg16 (EndpointBus, 0, 0, PCI_VID) == NVIDIA_VID)
{
DxePlatformSaPolicy->VbiosConfig->ExecuteVbios = 0;
}
VariableSize = sizeof (SETUP_DATA);
Status = gRT->GetVariable (
L"Setup",
&gSetupGuid,
&Attributes,
&VariableSize,
&SetupDataBuffer
);
DEBUG ((EFI_D_ERROR, "SgTpvDxeEntryPoint Attributes = %x\n",Attributes));
#if (defined(CSM_SUPPORT) && (CSM_SUPPORT != 0))
#if defined(CsmOptOut_SUPPORT) && (CsmOptOut_SUPPORT == 1)
if ((SetupDataBuffer.CsmLaunchPolicy == 0) || (SetupDataBuffer.BootOptionFilter == 2))
{DxePlatformSaPolicy->VbiosConfig->ExecuteVbios = 0;}
#endif
#else
DxePlatformSaPolicy->VbiosConfig->ExecuteVbios = 0;
#endif
// if (SetupDataBuffer.PrimaryDisplay == 4)
// {
if (EndpointBus != 0xff &&
McDevFunPciCfg16 (EndpointBus, 0, 0, PCI_VID) == AMD_VID)
{
SetupDataBuffer.TPVCardCheck = 1;
} else
SetupDataBuffer.TPVCardCheck = 0;
Status = gRT->SetVariable (
L"Setup",
&gSetupGuid,
Attributes,
sizeof(SETUP_DATA),
&SetupDataBuffer
);
// } // SetupDataBuffer.PrimaryDisplay == 4
return Status;
}
//**********************************************************************
//**********************************************************************
//** **
//** (C)Copyright 1985-2012, American Megatrends, Inc. **
//** **
//** All Rights Reserved. **
//** **
//** 5555 Oakbrook Pkwy, Suite 200, Norcross, GA 30093 **
//** **
//** Phone: (770)-246-8600 **
//** **
//**********************************************************************
//**********************************************************************
|
