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acpica-tools/CEDT-support_01.patch

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commit 0b03aa8ebd7a5b2b9407893f123ee587af45926f
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Thu Feb 25 13:54:56 2021 -0800
CXL 2.0: CEDT: Add new CEDT table
This sets up all of the boilerplate without actually doing anything.
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
diff --git a/source/common/ahtable.c b/source/common/ahtable.c
index a313c7f..2679fae 100644
--- a/source/common/ahtable.c
+++ b/source/common/ahtable.c
@@ -95,6 +95,7 @@ const AH_TABLE Gbl_AcpiSupportedTables[] =
{ACPI_SIG_BERT, "Boot Error Record Table"},
{ACPI_SIG_BGRT, "Boot Graphics Resource Table"},
{ACPI_SIG_BOOT, "Simple Boot Flag Table"},
+ {ACPI_SIG_CEDT, "CXL Early Discovery Table"},
{ACPI_SIG_CPEP, "Corrected Platform Error Polling table"},
{ACPI_SIG_CSRT, "Core System Resource Table"},
{ACPI_SIG_DBG2, "Debug Port table type 2"},
diff --git a/source/common/dmtable.c b/source/common/dmtable.c
index 0908e44..137b5b9 100644
--- a/source/common/dmtable.c
+++ b/source/common/dmtable.c
@@ -376,6 +376,7 @@ const ACPI_DMTABLE_DATA AcpiDmTableData[] =
{ACPI_SIG_BERT, AcpiDmTableInfoBert, NULL, NULL, TemplateBert},
{ACPI_SIG_BGRT, AcpiDmTableInfoBgrt, NULL, NULL, TemplateBgrt},
{ACPI_SIG_BOOT, AcpiDmTableInfoBoot, NULL, NULL, TemplateBoot},
+ {ACPI_SIG_CEDT, NULL, NULL, NULL, NULL},
{ACPI_SIG_CPEP, NULL, AcpiDmDumpCpep, DtCompileCpep, TemplateCpep},
{ACPI_SIG_CSRT, NULL, AcpiDmDumpCsrt, DtCompileCsrt, TemplateCsrt},
{ACPI_SIG_DBG2, AcpiDmTableInfoDbg2, AcpiDmDumpDbg2, DtCompileDbg2, TemplateDbg2},
diff --git a/source/common/dmtbinfo1.c b/source/common/dmtbinfo1.c
index 4adb42a..cb41915 100644
--- a/source/common/dmtbinfo1.c
+++ b/source/common/dmtbinfo1.c
@@ -236,6 +236,33 @@ ACPI_DMTABLE_INFO AcpiDmTableInfoBoot[] =
};
+/*******************************************************************************
+ *
+ * CEDT - CXL Early Discovery Table
+ *
+ ******************************************************************************/
+
+ACPI_DMTABLE_INFO AcpiDmTableInfoCedtHdr[] =
+{
+ {ACPI_DMT_UINT8, ACPI_CEDT_OFFSET (Type), "Subtable Type", 0},
+ {ACPI_DMT_UINT8, ACPI_CEDT_OFFSET (Reserved), "Reserved", 0},
+ {ACPI_DMT_UINT16, ACPI_CEDT_OFFSET (Length), "Length", DT_LENGTH},
+ ACPI_DMT_TERMINATOR
+};
+
+/* 0: CXL Host Bridge Structure */
+
+ACPI_DMTABLE_INFO AcpiDmTableInfoCedt0[] =
+{
+ {ACPI_DMT_UINT32, ACPI_CEDT0_OFFSET (Uid), "Associated host bridge", 0},
+ {ACPI_DMT_UINT32, ACPI_CEDT0_OFFSET (CxlVersion), "Specification version", 0},
+ {ACPI_DMT_UINT32, ACPI_CEDT0_OFFSET (Reserved), "Reserved", 0},
+ {ACPI_DMT_UINT64, ACPI_CEDT0_OFFSET (Base), "Register base", 0},
+ {ACPI_DMT_UINT64, ACPI_CEDT0_OFFSET (Length), "Register length", 0},
+ ACPI_DMT_TERMINATOR
+};
+
+
/*******************************************************************************
*
* CPEP - Corrected Platform Error Polling table
diff --git a/source/include/acdisasm.h b/source/include/acdisasm.h
index e9b7a48..5e94ee3 100644
--- a/source/include/acdisasm.h
+++ b/source/include/acdisasm.h
@@ -256,6 +256,8 @@ extern ACPI_DMTABLE_INFO AcpiDmTableInfoAsfHdr[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoBoot[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoBert[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoBgrt[];
+extern ACPI_DMTABLE_INFO AcpiDmTableInfoCedtHdr[];
+extern ACPI_DMTABLE_INFO AcpiDmTableInfoCedt0[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoCpep[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoCpep0[];
extern ACPI_DMTABLE_INFO AcpiDmTableInfoCsrt0[];
diff --git a/source/include/actbinfo.h b/source/include/actbinfo.h
index 8a1fd74..9735f22 100644
--- a/source/include/actbinfo.h
+++ b/source/include/actbinfo.h
@@ -104,6 +104,8 @@
#define ACPI_ASF2a_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_ASF_CONTROL_DATA,f)
#define ACPI_ASF3_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_ASF_RMCP,f)
#define ACPI_ASF4_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_ASF_ADDRESS,f)
+#define ACPI_CEDT_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_CEDT_HEADER, f)
+#define ACPI_CEDT0_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_CEDT_CHBS, f)
#define ACPI_CPEP0_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_CPEP_POLLING,f)
#define ACPI_CSRT0_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_CSRT_GROUP,f)
#define ACPI_CSRT1_OFFSET(f) (UINT16) ACPI_OFFSET (ACPI_CSRT_SHARED_INFO,f)
diff --git a/source/include/actbl1.h b/source/include/actbl1.h
index b76195f..ce4737d 100644
--- a/source/include/actbl1.h
+++ b/source/include/actbl1.h
@@ -64,6 +64,7 @@
#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 */
@@ -383,6 +384,56 @@ typedef struct acpi_table_boot
} ACPI_TABLE_BOOT;
+/*******************************************************************************
+ *
+ * CEDT - CXL Early Discovery Table
+ * Version 1
+ *
+ * Conforms to the "CXL Early Discovery Table" (CXL 2.0)
+ *
+ ******************************************************************************/
+
+typedef struct acpi_table_cedt
+{
+ ACPI_TABLE_HEADER Header; /* Common ACPI table header */
+
+} ACPI_TABLE_CEDT;
+
+/* CEDT subtable header (Performance Record Structure) */
+
+typedef struct acpi_cedt_header
+{
+ UINT8 Type;
+ UINT8 Reserved;
+ UINT16 Length;
+
+} ACPI_CEDT_HEADER;
+
+/* Values for Type field above */
+
+enum AcpiCedtType
+{
+ ACPI_CEDT_TYPE_CHBS = 0,
+};
+
+
+/*
+ * CEDT subtables
+ */
+
+/* 0: CXL Host Bridge Structure */
+
+typedef struct acpi_cedt_chbs
+{
+ ACPI_CEDT_HEADER Header;
+ UINT32 Uid;
+ UINT32 CxlVersion;
+ UINT32 Reserved;
+ UINT64 Base;
+ UINT64 Length;
+
+} ACPI_CEDT_CHBS;
+
/*******************************************************************************
*
diff --git a/source/tools/acpisrc/astable.c b/source/tools/acpisrc/astable.c
index ef74f17..8aa35fe 100644
--- a/source/tools/acpisrc/astable.c
+++ b/source/tools/acpisrc/astable.c
@@ -529,6 +529,7 @@ ACPI_TYPED_IDENTIFIER_TABLE AcpiIdentifiers[] = {
{"ACPI_TABLE_BERT", SRC_TYPE_STRUCT},
{"ACPI_TABLE_BGRT", SRC_TYPE_STRUCT},
{"ACPI_TABLE_BOOT", SRC_TYPE_STRUCT},
+ {"ACPI_TABLE_CEDT", SRC_TYPE_STRUCT},
{"ACPI_TABLE_CPEP", SRC_TYPE_STRUCT},
{"ACPI_TABLE_CSRT", SRC_TYPE_STRUCT},
{"ACPI_TABLE_DBG2", SRC_TYPE_STRUCT},
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