diff options
Diffstat (limited to 'MdePkg/Include/IndustryStandard/Cxl30.h')
| -rw-r--r-- | MdePkg/Include/IndustryStandard/Cxl30.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/MdePkg/Include/IndustryStandard/Cxl30.h b/MdePkg/Include/IndustryStandard/Cxl30.h index 7a9a6d6940..2b8574355c 100644 --- a/MdePkg/Include/IndustryStandard/Cxl30.h +++ b/MdePkg/Include/IndustryStandard/Cxl30.h @@ -46,6 +46,14 @@ #define CXL_HDM_12_WAY_INTERLEAVING 0xA
//
+// "CEDT" CXL Early Discovery Table
+// Compute Express Link Specification Revision 3.0 - Chapter 9.17.1
+//
+#define CEDT_TYPE_CFMWS 0x1
+#define CEDT_TYPE_CXIMS 0x2
+#define CEDT_TYPE_RDPAS 0x3
+
+//
// Ensure proper structure formats
//
#pragma pack(1)
@@ -311,6 +319,57 @@ typedef struct { CXL_3_0_CXL_TIMEOUT_AND_ISOLATION_STATUS TimeoutAndIsolationStatus;
} CXL_3_0_CXL_TIMEOUT_AND_ISOLATION_CAPABILITY_STRUCTURE;
+//
+// Definition for CXL Fixed Memory Window Structure (CFMWS)
+// Compute Express Link Specification Revision 3.0 - Chapter 9.17.1.3
+//
+// The number of entries in TargetList (Interleave Target List) shall
+// match the Number of Interleave Ways (NIW). The current maximum is 16.
+//
+typedef struct {
+ CEDT_STRUCTURE Header;
+ UINT32 Reserved;
+ UINT64 BaseHpa;
+ UINT64 WindowSize;
+ UINT8 EncodedInterleaveWays;
+ UINT8 InterleaveArithmetic;
+ UINT16 Reserved1;
+ UINT32 Granularity;
+ UINT16 Restrictions;
+ UINT16 QtgId;
+ UINT32 TargetList[16];
+} CXL_FIXED_MEMORY_WINDOW_STRUCTURE;
+
+//
+// Definition for CXL XOR Interleave Math Structure (CXIMS)
+// Compute Express Link Specification Revision 3.0 - Chapter 9.17.1.4
+//
+// The number of entries in XORMAPList depends on NIB. 4 is the current
+// maximum for 16-way interleaving.
+//
+typedef struct {
+ CEDT_STRUCTURE Header;
+ UINT16 Reserved;
+ UINT8 HBIG;
+ UINT8 NIB;
+ UINT64 XORMAPList[4];
+} CXL_XOR_INTERLEAVE_MATH_STRUCTURE;
+
+//
+// Definition for RCEC Downstream Port Association Structure (RDPAS)
+// Compute Express Link Specification Revision 3.0 - Chapter 9.17.1.5
+//
+// The errata released at CXL 3.2 fixed that RCEC BDF field overlaps
+// Protocol Type field.
+//
+typedef struct {
+ CEDT_STRUCTURE Header;
+ UINT16 SegmentNumber;
+ UINT16 Bdf;
+ UINT64 BaseAddress;
+ UINT8 ProtocolType;
+} RCEC_DOWNSTREAM_PORT_ASSOCIATION_STRUCTURE;
+
#pragma pack()
#endif
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