/** @file
|
PCH private PMC Library.
|
All function in this library is available for PEI, DXE, and SMM,
|
But do not support UEFI RUNTIME environment call.
|
|
Copyright (c) 2019 Intel Corporation. All rights reserved. <BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
**/
|
|
#include <Base.h>
|
#include <Uefi/UefiBaseType.h>
|
#include <Library/IoLib.h>
|
#include <Library/DebugLib.h>
|
#include <Library/BaseLib.h>
|
#include <Library/PchCycleDecodingLib.h>
|
#include <Library/S3BootScriptLib.h>
|
#include <Library/PmcLib.h>
|
#include <Private/Library/PmcPrivateLib.h>
|
|
/**
|
This function locks down PMC (DebugModeLock)
|
**/
|
VOID
|
PmcLockWithS3BootScript (
|
VOID
|
)
|
{
|
|
UINT32 PchPwrmBase;
|
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
//
|
// Set PWRM_CFG[27] prior to OS.
|
//
|
MmioOr32 (PchPwrmBase + R_PMC_PWRM_CFG, B_PMC_PWRM_CFG_DBG_MODE_LOCK);
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint32,
|
(PchPwrmBase + R_PMC_PWRM_CFG),
|
1,
|
(VOID *) ((UINTN) PchPwrmBase + R_PMC_PWRM_CFG)
|
);
|
|
}
|
|
/**
|
This S3 BootScript only function disables triggering Global Reset of both
|
the Host and the ME partitions after CF9h write of 6h or Eh.
|
**/
|
VOID
|
PmcDisableCf9GlobalResetInS3BootScript (
|
VOID
|
)
|
{
|
UINT32 Data;
|
|
UINT32 PchPwrmBase;
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
Data = MmioRead32 (PchPwrmBase + R_PMC_PWRM_ETR3);
|
|
Data &= (UINT32) ~B_PMC_PWRM_ETR3_CF9GR;
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint32,
|
(UINTN) PchPwrmBase +
|
R_PMC_PWRM_ETR3,
|
1,
|
&Data
|
);
|
}
|
|
/**
|
This S3 BootScript only function disables triggering Global Reset of both
|
the Host and the ME partitions after CF9h write of 6h or Eh.
|
Global Reset configuration is locked after programming
|
**/
|
VOID
|
PmcDisableCf9GlobalResetWithLockInS3BootScript (
|
VOID
|
)
|
{
|
UINT32 Data;
|
|
UINT32 PchPwrmBase;
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
Data = MmioRead32 (PchPwrmBase + R_PMC_PWRM_ETR3);
|
|
Data &= (UINT32) ~B_PMC_PWRM_ETR3_CF9GR;
|
Data |= (UINT32) B_PMC_PWRM_ETR3_CF9LOCK;
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint32,
|
(UINTN) PchPwrmBase +
|
R_PMC_PWRM_ETR3,
|
1,
|
&Data
|
);
|
}
|
|
/**
|
This function sets SLP_SX Stretching Policy and adds
|
lock setting to S3 Boot Script
|
**/
|
VOID
|
PmcLockSlpSxStretchingPolicyWithS3BootScript (
|
VOID
|
)
|
{
|
UINT32 PchPwrmBase;
|
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
MmioOr8 (
|
(PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B + 2),
|
(UINT8) ((B_PMC_PWRM_GEN_PMCON_B_SLPSX_STR_POL_LOCK) >> 16)
|
);
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint8,
|
(PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B + 2),
|
1,
|
(VOID *) ((UINTN) PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B + 2)
|
);
|
}
|
|
/**
|
This function sets SMI Lock with S3 Boot Script programming
|
**/
|
VOID
|
PmcLockSmiWithS3BootScript (
|
VOID
|
)
|
{
|
UINT32 PchPwrmBase;
|
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
MmioOr8 ((PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B), B_PMC_PWRM_GEN_PMCON_B_SMI_LOCK);
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint8,
|
(PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B),
|
1,
|
(VOID *) ((UINTN) PchPwrmBase + R_PMC_PWRM_GEN_PMCON_B)
|
);
|
}
|
|
/**
|
This function locks static power gating configuration with S3 Boot Script programming
|
**/
|
VOID
|
PmcLockFunctionDisableConfigWithS3BootScript (
|
VOID
|
)
|
{
|
UINT32 PchPwrmBase;
|
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
MmioOr32 (PchPwrmBase + R_PMC_PWRM_ST_PG_FDIS_PMC_1, (UINT32) (B_PMC_PWRM_ST_PG_FDIS_PMC_1_ST_FDIS_LK));
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint8,
|
(UINTN) (PchPwrmBase + R_PMC_PWRM_ST_PG_FDIS_PMC_1),
|
1,
|
(VOID *) (UINTN) (PchPwrmBase + R_PMC_PWRM_ST_PG_FDIS_PMC_1)
|
);
|
}
|
|
/**
|
This function locks PMC Set Strap Message interface with S3 Boot Script programming
|
**/
|
VOID
|
PmcLockSetStrapMsgInterfaceWithS3BootScript (
|
VOID
|
)
|
{
|
UINT32 PchPwrmBase;
|
|
PchPwrmBase = PmcGetPwrmBase ();
|
|
MmioOr32 ((UINTN) (PchPwrmBase + R_PMC_PWRM_SSML), B_PMC_PWRM_SSML_SSL);
|
|
S3BootScriptSaveMemWrite (
|
S3BootScriptWidthUint8,
|
(UINTN) (PchPwrmBase + R_PMC_PWRM_SSML),
|
1,
|
(VOID *) (UINTN) (PchPwrmBase + R_PMC_PWRM_SSML)
|
);
|
}
|
