@@ -28,6 +28,7 @@
#define ACPI_SIG_BERT "BERT" /* Boot Error Record Table */
#define ACPI_SIG_BGRT "BGRT" /* Boot Graphics Resource Table */
#define ACPI_SIG_BOOT "BOOT" /* Simple Boot Flag Table */
+#define ACPI_SIG_CEDT "CEDT" /* CXL Early Discovery Table */
#define ACPI_SIG_CPEP "CPEP" /* Corrected Platform Error Polling table */
#define ACPI_SIG_CSRT "CSRT" /* Core System Resource Table */
#define ACPI_SIG_DBG2 "DBG2" /* Debug Port table type 2 */
@@ -301,6 +302,48 @@ struct acpi_table_boot {
u8 reserved[3];
};
+/*******************************************************************************
+ *
+ * CEDT - CXL Early Discovery Table
+ * Version 1
+ *
+ * Conforms to the "CXL Early Discovery Table" (CXL 2.0)
+ *
+ ******************************************************************************/
+
+struct acpi_table_cedt {
+ struct acpi_table_header header; /* Common ACPI table header */
+};
+
+/* CEDT subtable header (Performance Record Structure) */
+
+struct acpi_cedt_header {
+ u8 type;
+ u8 reserved;
+ u16 length;
+};
+
+/* Values for Type field above */
+
+enum acpi_cedt_type {
+ ACPI_CEDT_TYPE_CHBS = 0,
+};
+
+/*
+ * CEDT subtables
+ */
+
+/* 0: CXL Host Bridge Structure */
+
+struct acpi_cedt_chbs {
+ ACPI_CEDT_HEADER header;
+ u32 uid;
+ u32 cxl_version;
+ u32 reserved;
+ u64 base;
+ u64 length;
+};
+
/*******************************************************************************
*
* CPEP - Corrected Platform Error Polling table (ACPI 4.0)