diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c b/Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c new file mode 100644 index 0000000000..2f8996bc1a --- /dev/null +++ b/Vlv2TbltDevicePkg/PpmPolicy/PpmPolicy.c @@ -0,0 +1,160 @@ +/**
+ Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
+ 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.
+
+
+Module Name:
+
+
+ PpmPolicy.c
+
+Abstract:
+
+ This file is a wrapper for Intel PPM Platform Policy driver.
+ Get Setup Value to initilize Intel PPM DXE Platform Policy.
+
+--*/
+#include "PpmPolicy.h"
+#include <Protocol/MpService.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/CpuIA32.h>
+
+#include <PchRegs.h>
+#include <Library/PchPlatformLib.h>
+
+#define EFI_CPUID_FAMILY 0x0F00
+#define EFI_CPUID_MODEL 0x00F0
+#define EFI_CPUID_STEPPING 0x000F
+
+
+
+EFI_STATUS
+EFIAPI
+PpmPolicyEntry(
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+)
+{
+ EFI_MP_SERVICES_PROTOCOL *MpService;
+ EFI_CPUID_REGISTER Cpuid01 = { 0, 0, 0, 0};
+ EFI_HANDLE Handle;
+ EFI_STATUS Status;
+ UINTN CpuCount;
+ UINT64 MaxRatio;
+ UINT8 CPUMobileFeature;
+
+ PCH_STEPPING Stepping;
+
+
+ gBS = SystemTable->BootServices;
+ pBS = SystemTable->BootServices;
+ pRS = SystemTable->RuntimeServices;
+
+ //
+ // Set PPM policy structure to known value
+ //
+ gBS->SetMem (&mDxePlatformPpmPolicy, sizeof(PPM_PLATFORM_POLICY_PROTOCOL), 0);
+
+ //
+ // Find the MpService Protocol
+ //
+ Status = pBS->LocateProtocol (&gEfiMpServiceProtocolGuid,
+ NULL,
+ (void **)&MpService
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Get processor count from MP service.
+ //
+ Status = MpService->GetNumberOfProcessors (MpService, &CpuCount, NULL);
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Store the CPUID for use by SETUP items.
+ //
+ AsmCpuid (EFI_CPUID_VERSION_INFO, &Cpuid01.RegEax, &Cpuid01.RegEbx, &Cpuid01.RegEcx, &Cpuid01.RegEdx);
+ MaxRatio = ((RShiftU64 (AsmReadMsr64(EFI_MSR_IA32_PLATFORM_ID), 8)) & 0x1F);
+
+
+ mDxePlatformPpmPolicy.Revision = PPM_PLATFORM_POLICY_PROTOCOL_REVISION_4;
+
+ //Read CPU Mobile feature from PLATFORM_ID_MSR MSR(0x17) NOTFB_I_AM_NOT_MOBILE_FUSE_CLIAMC00H Bit 28
+ //Bit Description: { Disables Mobile features 0 = I am NOT a mobile part 1 = I am a mobile part (default)"}
+ CPUMobileFeature = ((RShiftU64 (AsmReadMsr64(EFI_MSR_IA32_PLATFORM_ID), 28)) & 0x1);
+
+ if (!EFI_ERROR(Status)) {
+ if (CPUMobileFeature == 1){//CPU mobile feature
+ mDxePlatformPpmPolicy.FunctionEnables.EnableGv = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCx = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCxe = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTm = ICH_DEVICE_ENABLE;
+ //MaxC7
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC7 = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC6 = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC4 = ICH_DEVICE_ENABLE;
+
+
+ }else{//CPU desktop feature
+ mDxePlatformPpmPolicy.FunctionEnables.EnableGv = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCx = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCxe = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTm = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC4 = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC6 = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC7 = ICH_DEVICE_DISABLE;
+ }
+
+
+ mDxePlatformPpmPolicy.FunctionEnables.EnableProcHot = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.TStatesEnable = ICH_DEVICE_ENABLE;
+
+
+ Stepping = PchStepping();
+ if (Stepping < PchB3) {
+ // If SoC is B0~B2 Stepping, disable the Turbo
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_DISABLE;
+ } else {
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_ENABLE;
+ }
+
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTm = ICH_DEVICE_ENABLE;
+
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCMP = ICH_DEVICE_ENABLE;
+
+ } else {
+ mDxePlatformPpmPolicy.FunctionEnables.EnableGv = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCx = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCxe = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTm = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableProcHot = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableCMP = ICH_DEVICE_DISABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.TStatesEnable = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableTurboMode= ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC4 = ICH_DEVICE_ENABLE;
+ mDxePlatformPpmPolicy.FunctionEnables.EnableC6 = ICH_DEVICE_ENABLE;
+ }
+
+
+
+ mDxePlatformPpmPolicy.S3RestoreMsrSwSmiNumber = S3_RESTORE_MSR_SW_SMI;
+
+ Handle = NULL;
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gPpmPlatformPolicyProtocolGuid,
+ &mDxePlatformPpmPolicy,
+ NULL
+ );
+
+ ASSERT_EFI_ERROR (Status);
+
+ return EFI_SUCCESS;
+}
|