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| author | Nick Graves <nicholasgraves@google.com> | 2025-03-05 23:50:22 +0000 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2025-03-12 21:47:02 +0000 |
| commit | 4b1a4264872db6bd16d369f3adc3421534a02c8b (patch) | |
| tree | 35e156a8653dd0a0da45de7c0388d8d5bbb379a0 | |
| parent | a093f6eccd8071ff32c60a6bfe54f97b9e07c6ef (diff) | |
| download | edk2-4b1a4264872db6bd16d369f3adc3421534a02c8b.zip edk2-4b1a4264872db6bd16d369f3adc3421534a02c8b.tar.gz edk2-4b1a4264872db6bd16d369f3adc3421534a02c8b.tar.bz2 | |
MdePkg: Add ACPI CEDT table structures
Add structures for the ACPI table CEDT as defined in the CXL 3.0
specification
Signed-off-by: Nick Graves <nicholasgraves@google.com>
| -rw-r--r-- | MdePkg/Include/IndustryStandard/Acpi64.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/MdePkg/Include/IndustryStandard/Acpi64.h b/MdePkg/Include/IndustryStandard/Acpi64.h index 7dff096..295ec9d 100644 --- a/MdePkg/Include/IndustryStandard/Acpi64.h +++ b/MdePkg/Include/IndustryStandard/Acpi64.h @@ -2856,6 +2856,144 @@ typedef struct { #define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_UNKNOWN 0x02
#define EFI_ACPI_6_4_PHAT_FIRMWARE_HEALTH_DATA_RECORD_ADVISORY 0x03
+///
+/// CEDT Table Revision
+///
+#define EFI_ACPI_6_4_CEDT_CXL_EARLY_DISCOVERY_TABLE_REVISION_01 0x01
+
+///
+/// CEDT Structure Type
+///
+#define EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_HOST_BRIDGE_STRUCTURE 0x00
+#define EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_FIXED_MEMORY_WINDOW_STRUCTURE 0x01
+#define EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_XOR_INTERLEAVE_MATH_STRUCTURE 0x02
+#define EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_RCEC_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE 0x03
+
+///
+/// CEDT CXL Host Bridge Structure
+///
+typedef struct {
+ UINT8 Type; // Set to EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_HOST_BRIDGE_STRUCTURE
+ UINT8 Reserved0;
+ UINT16 RecordLength;
+ UINT32 Uid;
+ UINT32 CxlVersion;
+ UINT32 Reserved1;
+ UINT64 Base;
+ UINT64 Length;
+} EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_STRUCTURE;
+
+///
+/// CEDT CXL Version
+///
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_STRUCTURE_CXL_VERSION_RCH 0x00
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_STRUCTURE_CXL_VERSION_HB 0x01
+
+///
+/// CEDT CXL Fixed Memory Window Structure
+///
+typedef struct {
+ UINT8 Type; // Set to EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_FIXED_MEMORY_WINDOW_STRUCTURE
+ UINT8 Reserved0;
+ UINT16 RecordLength;
+ UINT32 Reserved1;
+ UINT64 BaseHpa;
+ UINT64 WindowSize;
+ UINT8 EncodedNumberOfInterleaveWays;
+ UINT8 InterleaveArithmetic;
+ UINT16 Reserved2;
+ UINT32 HostBridgeInterleaveGranularity;
+ UINT16 WindowRestrictions;
+ UINT16 QtgId;
+ UINT32 InterleaveTargetList[];
+} EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE;
+
+///
+/// CEDT Fixed Memory Window Structure Host Bridge Interleave Ways
+///
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_NONE 0x0
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_2_WAY 0x1
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_4_WAY 0x2
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_8_WAY 0x3
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_16_WAY 0x4
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_3_WAY 0x8
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_6_WAY 0x9
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_WAYS_12_WAY 0xA
+
+///
+/// CEDT Fixed Memory Window Structure Interleave Arithmetic Type
+///
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_ARITHMETIC_STANDARD_MODULO 0x00
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_INTERLEAVE_ARITHMETIC_MODULO_XOR 0x01
+
+///
+/// CEDT Host Bridge Interleave Granularity
+///
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_256B 0x0
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_512B 0x1
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_1024B 0x2
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_2048B 0x3
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_4096B 0x4
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_8192B 0x5
+#define EFI_ACPI_6_4_CEDT_CXL_HOST_BRIDGE_INTERLEAVE_GRANULARITY_16384B 0x6
+
+///
+/// CEDT Fixed Memory Window Structure Window Restriction
+///
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_WINDOW_RESTRICTIONS_DEVICE_COHERENT BIT0
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_WINDOW_RESTRICTIONS_HOST_ONLY_COHERENT BIT1
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_WINDOW_RESTRICTIONS_VOLATILE BIT2
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_WINDOW_RESTRICTIONS_PERSISTENT BIT3
+#define EFI_ACPI_6_4_CEDT_CXL_FIXED_MEMORY_WINDOW_STRUCTURE_WINDOW_RESTRICTIONS_FIXED_DEVICE_CONFIGURATION BIT4
+
+///
+/// CEDT CXL XOR Interleave Math Structure
+///
+typedef struct {
+ UINT8 Type; // Set to EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_CXL_XOR_INTERLEAVE_MATH_STRUCTURE
+ UINT8 Reserved0;
+ UINT16 RecordLength;
+ UINT16 Reserved1;
+ UINT8 HostBridgeInterleaveGranularity;
+ UINT8 NumberOfBitmapEntries;
+ UINT64 XormapList[];
+} EFI_ACPI_6_4_CEDT_CXL_XOR_INTERLEAVE_MATH_STRUCTURE;
+
+///
+/// CEDT RCEC Downstream Port Association Structure
+///
+typedef struct {
+ UINT8 Type; // Set to EFI_ACPI_6_4_CEDT_STRUCTURE_TYPE_RCEC_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE
+ UINT8 Reserved0;
+ UINT16 RecordLength;
+ UINT16 RcecSegmentNumber;
+ UINT16 RcecBusDeviceFunction;
+ UINT8 ProtocolType;
+ UINT64 BaseAddress;
+} EFI_ACPI_6_4_CEDT_RCEC_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE;
+
+///
+/// CEDT RCEC Protocol Type
+///
+#define EFI_ACPI_6_4_CEDT_RCEC_PROTOCOL_TYPE_CXL_IO 0x00
+#define EFI_ACPI_6_4_CEDT_RCEC_PROTOCOL_TYPE_CXL_CACHEMEM 0x01
+
+///
+/// CXL Early Discovery Table ("CEDT") Format
+///
+typedef struct {
+ EFI_ACPI_DESCRIPTION_HEADER Header;
+
+ // CedtStructure is a heterogeneous, packed list of any of the following:
+ // - CXL Host Bridge Structure
+ // - CXL Fixed Memory Window Structure
+ // - CXL XOR Interleave Math Structure
+ // - RCEC Downstream Port Association Structure
+ // The structures share common Type and RecordLength fields that are used to
+ // identify the type of structure and traverse the list.
+ UINT8 CedtStructure[];
+} EFI_ACPI_6_4_CXL_EARLY_DISCOVERY_TABLE;
+
//
// Known table signatures
//
@@ -2891,6 +3029,11 @@ typedef struct { #define EFI_ACPI_6_4_COMPONENT_DISTANCE_INFORMATION_TABLE_SIGNATURE SIGNATURE_32('C', 'D', 'I', 'T')
///
+/// "CEDT" CXL Early Discovery Table
+///
+#define EFI_ACPI_6_4_CXL_EARLY_DISCOVERY_TABLE_SIGNATURE SIGNATURE_32('C', 'E', 'D', 'T')
+
+///
/// "CPEP" Corrected Platform Error Polling Table
///
#define EFI_ACPI_6_4_CORRECTED_PLATFORM_ERROR_POLLING_TABLE_SIGNATURE SIGNATURE_32('C', 'P', 'E', 'P')
|