diff options
Diffstat (limited to 'Board/EM/SwitchableGraphics/SgTpv/SgTpvDxe.c')
| -rw-r--r-- | Board/EM/SwitchableGraphics/SgTpv/SgTpvDxe.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/Board/EM/SwitchableGraphics/SgTpv/SgTpvDxe.c b/Board/EM/SwitchableGraphics/SgTpv/SgTpvDxe.c new file mode 100644 index 0000000..d3f8465 --- /dev/null +++ b/Board/EM/SwitchableGraphics/SgTpv/SgTpvDxe.c @@ -0,0 +1,260 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (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 ** +//** ** +//********************************************************************** +//********************************************************************** |