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/** @file
Support for the PCI Express 3.1 standard.
This header file may not define all structures. Please extend as required.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _PCIEXPRESS31_H_
#define _PCIEXPRESS31_H_
#include <IndustryStandard/PciExpress30.h>
#pragma pack(1)
#define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_ID 0x001E
#define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_VER1 0x1
typedef union {
struct {
UINT32 PciPmL12 : 1;
UINT32 PciPmL11 : 1;
UINT32 AspmL12 : 1;
UINT32 AspmL11 : 1;
UINT32 L1PmSubstates : 1;
UINT32 Reserved : 3;
UINT32 CommonModeRestoreTime : 8;
UINT32 TPowerOnScale : 2;
UINT32 Reserved2 : 1;
UINT32 TPowerOnValue : 5;
UINT32 Reserved3 : 8;
} Bits;
UINT32 Uint32;
} PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY;
typedef union {
struct {
UINT32 PciPmL12 : 1;
UINT32 PciPmL11 : 1;
UINT32 AspmL12 : 1;
UINT32 AspmL11 : 1;
UINT32 Reserved : 4;
UINT32 CommonModeRestoreTime : 8;
UINT32 LtrL12ThresholdValue : 10;
UINT32 Reserved2 : 3;
UINT32 LtrL12ThresholdScale : 3;
} Bits;
UINT32 Uint32;
} PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1;
typedef union {
struct {
UINT32 TPowerOnScale : 2;
UINT32 Reserved : 1;
UINT32 TPowerOnValue : 5;
UINT32 Reserved2 : 24;
} Bits;
UINT32 Uint32;
} PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2;
typedef struct {
PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER Header;
PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY Capability;
PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1 Control1;
PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2 Control2;
} PCI_EXPRESS_EXTENDED_CAPABILITIES_L1_PM_SUBSTATES;
#pragma pack()
#endif
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