| Subrata Banik | 20fe24b | 2021-12-09 02:46:38 +0530 | [diff] [blame] | 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 | SPDX-License-Identifier: BSD-2-Clause-Patent |
| 8 | |
| 9 | **/ |
| 10 | |
| 11 | #ifndef _PCIEXPRESS31_H_ |
| 12 | #define _PCIEXPRESS31_H_ |
| 13 | |
| 14 | #include <IndustryStandard/PciExpress30.h> |
| 15 | |
| 16 | #pragma pack(1) |
| 17 | |
| 18 | #define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_ID 0x001E |
| 19 | #define PCI_EXPRESS_EXTENDED_CAPABILITY_L1_PM_SUBSTATES_VER1 0x1 |
| 20 | |
| 21 | typedef union { |
| 22 | struct { |
| 23 | UINT32 PciPmL12 : 1; |
| 24 | UINT32 PciPmL11 : 1; |
| 25 | UINT32 AspmL12 : 1; |
| 26 | UINT32 AspmL11 : 1; |
| 27 | UINT32 L1PmSubstates : 1; |
| 28 | UINT32 Reserved : 3; |
| 29 | UINT32 CommonModeRestoreTime : 8; |
| 30 | UINT32 TPowerOnScale : 2; |
| 31 | UINT32 Reserved2 : 1; |
| 32 | UINT32 TPowerOnValue : 5; |
| 33 | UINT32 Reserved3 : 8; |
| 34 | } Bits; |
| 35 | UINT32 Uint32; |
| 36 | } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY; |
| 37 | |
| 38 | typedef union { |
| 39 | struct { |
| 40 | UINT32 PciPmL12 : 1; |
| 41 | UINT32 PciPmL11 : 1; |
| 42 | UINT32 AspmL12 : 1; |
| 43 | UINT32 AspmL11 : 1; |
| 44 | UINT32 Reserved : 4; |
| 45 | UINT32 CommonModeRestoreTime : 8; |
| 46 | UINT32 LtrL12ThresholdValue : 10; |
| 47 | UINT32 Reserved2 : 3; |
| 48 | UINT32 LtrL12ThresholdScale : 3; |
| 49 | } Bits; |
| 50 | UINT32 Uint32; |
| 51 | } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1; |
| 52 | |
| 53 | typedef union { |
| 54 | struct { |
| 55 | UINT32 TPowerOnScale : 2; |
| 56 | UINT32 Reserved : 1; |
| 57 | UINT32 TPowerOnValue : 5; |
| 58 | UINT32 Reserved2 : 24; |
| 59 | } Bits; |
| 60 | UINT32 Uint32; |
| 61 | } PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2; |
| 62 | |
| 63 | typedef struct { |
| 64 | PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER Header; |
| 65 | PCI_EXPRESS_REG_L1_PM_SUBSTATES_CAPABILITY Capability; |
| 66 | PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL1 Control1; |
| 67 | PCI_EXPRESS_REG_L1_PM_SUBSTATES_CONTROL2 Control2; |
| 68 | } PCI_EXPRESS_EXTENDED_CAPABILITIES_L1_PM_SUBSTATES; |
| 69 | |
| 70 | #pragma pack() |
| 71 | |
| 72 | #endif |