diff options
| author | Felix Polyudov <felixp@ami.com> | 2018-03-02 23:48:30 +0800 |
|---|---|---|
| committer | Liming Gao <liming.gao@intel.com> | 2018-03-03 00:28:24 +0800 |
| commit | 8805bd904abd2f331d91cc4ae26fe3ee75a1fd0d (patch) | |
| tree | cf84f0a8cc475d5b3c75f0dbbf57e49f1cd3753f /MdePkg | |
| parent | a39e72267034d0cae72be8741fff37f37e5da920 (diff) | |
| download | edk2-8805bd904abd2f331d91cc4ae26fe3ee75a1fd0d.tar.gz | |
MdePkg/Include/IndustryStandard: Add PCI Express 4.0 header file
v3: LaneEqualizationControl is changed to be an array.
v2: The structure is updated to include all the fields defined
in the PCI-E specification.
The header includes Physical Layer PCI Express Extended Capability definitions
described in section 7.7.5 of PCI Express Base Specification rev. 4.0.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Felix Polyudov <felixp@ami.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/IndustryStandard/PciExpress40.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/MdePkg/Include/IndustryStandard/PciExpress40.h b/MdePkg/Include/IndustryStandard/PciExpress40.h new file mode 100644 index 0000000000..f8068857db --- /dev/null +++ b/MdePkg/Include/IndustryStandard/PciExpress40.h @@ -0,0 +1,89 @@ +/** @file
+Support for the PCI Express 4.0 standard.
+
+This header file may not define all structures. Please extend as required.
+
+Copyright (c) 2018, American Megatrends, Inc. 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.
+
+**/
+
+#ifndef _PCIEXPRESS40_H_
+#define _PCIEXPRESS40_H_
+
+#include <IndustryStandard/PciExpress31.h>
+
+#pragma pack(1)
+
+/// The Physical Layer PCI Express Extended Capability definitions.
+///
+/// Based on section 7.7.5 of PCI Express Base Specification 4.0.
+///@{
+#define PCI_EXPRESS_EXTENDED_CAPABILITY_PHYSICAL_LAYER_16_0_ID 0x0026
+#define PCI_EXPRESS_EXTENDED_CAPABILITY_PHYSICAL_LAYER_16_0_VER1 0x1
+
+// Register offsets from Physical Layer PCI-E Ext Cap Header
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CAPABILITIES_OFFSET 0x04
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CONTROL_OFFSET 0x08
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_STATUS_OFFSET 0x0C
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_LOCAL_DATA_PARITY_STATUS_OFFSET 0x10
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_FIRST_RETIMER_DATA_PARITY_STATUS_OFFSET 0x14
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_SECOND_RETIMER_DATA_PARITY_STATUS_OFFSET 0x18
+#define PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_LANE_EQUALIZATION_CONTROL_OFFSET 0x20
+
+typedef union {
+ struct {
+ UINT32 Reserved : 32; // Reserved bit 0:31
+ } Bits;
+ UINT32 Uint32;
+} PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CAPABILITIES;
+
+typedef union {
+ struct {
+ UINT32 Reserved : 32; // Reserved bit 0:31
+ } Bits;
+ UINT32 Uint32;
+} PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CONTROL;
+
+typedef union {
+ struct {
+ UINT32 EqualizationComplete : 1; // bit 0
+ UINT32 EqualizationPhase1Success : 1; // bit 1
+ UINT32 EqualizationPhase2Success : 1; // bit 2
+ UINT32 EqualizationPhase3Success : 1; // bit 3
+ UINT32 LinkEqualizationRequest : 1; // bit 4
+ UINT32 Reserved : 27; // Reserved bit 5:31
+ } Bits;
+ UINT32 Uint32;
+} PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_STATUS;
+
+typedef union {
+ struct {
+ UINT8 DownstreamPortTransmitterPreset : 4; //bit 0..3
+ UINT8 UpstreamPortTransmitterPreset : 4; //bit 4..7
+ } Bits;
+ UINT8 Uint8;
+} PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_LANE_EQUALIZATION_CONTROL;
+
+typedef struct {
+ PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER Header;
+ PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CAPABILITIES Capablities;
+ PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_CONTROL Control;
+ PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_STATUS Status;
+ UINT32 LocalDataParityMismatchStatus;
+ UINT32 FirstRetimerDataParityMismatchStatus;
+ UINT32 SecondRetimerDataParityMismatchStatus;
+ UINT32 Reserved;
+ PCI_EXPRESS_REG_PHYSICAL_LAYER_16_0_LANE_EQUALIZATION_CONTROL LaneEqualizationControl[1];
+} PCI_EXPRESS_EXTENDED_CAPABILITIES_PHYSICAL_LAYER_16_0;
+///@}
+
+#pragma pack()
+
+#endif
|