1 /** @file 2 Support for the PCI Express 3.1 standard. 3 4 This header file may not define all structures. Please extend as required. 5 6 Copyright (c) 2016, Intel Corporation. All rights reserved.<BR> 7 This program and the accompanying materials 8 are licensed and made available under the terms and conditions of the BSD License 9 which accompanies this distribution. The full text of the license may be found at 10 http://opensource.org/licenses/bsd-license.php 11 12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 14 15 **/ 16 17 #ifndef _PCIEXPRESS31_H_ 18 #define _PCIEXPRESS31_H_ 19 20 #include <IndustryStandard/PciExpress30.h> 21 22 #pragma pack(1) 23 24 #define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_ID 0x001E 25 #define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_VER1 0x1 26 27 typedef union { 28 struct { 29 UINT32 PciPmL12 : 1; 30 UINT32 PciPmL11 : 1; 31 UINT32 AspmL12 : 1; 32 UINT32 AspmL11 : 1; 33 UINT32 L1PmSubstates : 1; 34 UINT32 Reserved : 3; 35 UINT32 CommonModeRestoreTime : 8; 36 UINT32 TPowerOnScale : 2; 37 UINT32 Reserved2 : 1; 38 UINT32 TPowerOnValue : 5; 39 UINT32 Reserved3 : 8; 40 } Bits; 41 UINT32 Uint32; 42 } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY; 43 44 typedef union { 45 struct { 46 UINT32 PciPmL12 : 1; 47 UINT32 PciPmL11 : 1; 48 UINT32 AspmL12 : 1; 49 UINT32 AspmL11 : 1; 50 UINT32 Reserved : 4; 51 UINT32 CommonModeRestoreTime : 8; 52 UINT32 LtrL12ThresholdValue : 10; 53 UINT32 Reserved2 : 3; 54 UINT32 LtrL12ThresholdScale : 3; 55 } Bits; 56 UINT32 Uint32; 57 } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1; 58 59 typedef union { 60 struct { 61 UINT32 TPowerOnScale : 2; 62 UINT32 Reserved : 1; 63 UINT32 TPowerOnValue : 5; 64 UINT32 Reserved2 : 24; 65 } Bits; 66 UINT32 Uint32; 67 } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2; 68 69 typedef struct { 70 PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER Header; 71 PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY Capability; 72 PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1 Control1; 73 PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2 Control2; 74 } PCI_EXPRESS_EXTENDED_CAPABILITIES_L1_PM_SUBSTATES; 75 76 #pragma pack() 77 78 #endif 79