Add support for ARM Performance Monitoring Unit Table.

The specification of this table is described in
"ARM Performance Monitoring Unit Architecture 1.0 Platform Design Document"
ARM DEN0117.

This patch adds the necessary types and support for
compiling/disassembling APMT.

Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>

3 files changed, 124 insertions, 0 deletions

diff --git a/source/compiler/dtcompiler.h b/source/compiler/dtcompiler.h
index 7dad85e80..3b3683cc6 100644
--- a/source/compiler/dtcompiler.h
+++ b/source/compiler/dtcompiler.h
@@ -570,6 +570,10 @@ DtCompileAest (
     void                    **PFieldList);
 
 ACPI_STATUS
+DtCompileApmt (
+    void                    **PFieldList);
+
+ACPI_STATUS
 DtCompileAsf (
     void                    **PFieldList);
 
@@ -763,6 +767,7 @@ DtGetGenericTableInfo (
 
 extern const unsigned char  TemplateAest[];
 extern const unsigned char  TemplateAgdi[];
+extern const unsigned char  TemplateApmt[];
 extern const unsigned char  TemplateAsf[];
 extern const unsigned char  TemplateBoot[];
 extern const unsigned char  TemplateBdat[];
diff --git a/source/compiler/dttable1.c b/source/compiler/dttable1.c
index 66348535e..1df24d49f 100644
--- a/source/compiler/dttable1.c
+++ b/source/compiler/dttable1.c
@@ -389,6 +389,102 @@ DtCompileAest (
 
 /******************************************************************************
  *
+ * FUNCTION:    DtCompileApmt
+ *
+ * PARAMETERS:  List                - Current field list pointer
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Compile APMT.
+ *
+ *****************************************************************************/
+
+ACPI_STATUS
+DtCompileApmt (
+    void                    **List)
+{
+    ACPI_STATUS             Status;
+    ACPI_TABLE_HEADER       *Header;
+    ACPI_APMT_NODE          *ApmtNode;
+    ACPI_APMT_NODE          *PeerApmtNode;
+    DT_SUBTABLE             *Subtable;
+    DT_SUBTABLE             *PeerSubtable;
+    DT_SUBTABLE             *ParentTable;
+    DT_FIELD                **PFieldList = (DT_FIELD**)List;
+    DT_FIELD                *SubtableStart;
+    UINT32                  CurLength;
+    char                    MsgBuffer[64] = "";
+
+    ParentTable = DtPeekSubtable();
+
+    Header = ACPI_CAST_PTR(ACPI_TABLE_HEADER, ParentTable->Buffer);
+
+    CurLength = sizeof(ACPI_TABLE_HEADER);
+
+    /* Walk the parse tree */
+
+    while (*PFieldList)
+    {
+        /* APMT Node Subtable */
+
+        SubtableStart = *PFieldList;
+
+        Status = DtCompileTable(PFieldList, AcpiDmTableInfoApmtNode, &Subtable);
+
+        if (ACPI_FAILURE(Status))
+        {
+            return (Status);
+        }
+
+        ApmtNode = ACPI_CAST_PTR(ACPI_APMT_NODE, Subtable->Buffer);
+
+        if (ApmtNode->Length != sizeof(ACPI_APMT_NODE))
+        {
+            DtFatal(ASL_MSG_INVALID_LENGTH, SubtableStart, "APMT");
+            return (AE_ERROR);
+        }
+
+        if (ApmtNode->Type >= ACPI_APMT_NODE_TYPE_COUNT)
+        {
+            snprintf(MsgBuffer, 64, "Node Type : 0x%X", ApmtNode->Type);
+            DtFatal(ASL_MSG_INVALID_TYPE, SubtableStart, MsgBuffer);
+            return (AE_ERROR);
+        }
+
+        PeerSubtable = DtGetNextSubtable(ParentTable, NULL);
+
+        /* Validate the node id needs to be unique. */
+        while(PeerSubtable)
+        {
+            PeerApmtNode = ACPI_CAST_PTR(ACPI_APMT_NODE, PeerSubtable->Buffer);
+            if (PeerApmtNode->Id == ApmtNode->Id)
+            {
+                snprintf(MsgBuffer, 64, "Node Id : 0x%X existed", ApmtNode->Id);
+                DtFatal(ASL_MSG_DUPLICATE_ITEM, SubtableStart, MsgBuffer);
+                return (AE_ERROR);
+            }
+
+            PeerSubtable = DtGetNextSubtable(ParentTable, PeerSubtable);
+        }
+
+        CurLength += ApmtNode->Length;
+
+        DtInsertSubtable(ParentTable, Subtable);
+    }
+
+    if (Header->Length != CurLength)
+    {
+        snprintf(MsgBuffer, 64, " - APMT Length : %u (expected: %u)",
+            Header->Length, CurLength);
+        DtFatal(ASL_MSG_INVALID_LENGTH, NULL, MsgBuffer);
+        return (AE_ERROR);
+    }
+
+    return (AE_OK);
+}
+
+/******************************************************************************
+ *
  * FUNCTION:    DtCompileAsf
  *
  * PARAMETERS:  List                - Current field list pointer
diff --git a/source/compiler/dttemplate.h b/source/compiler/dttemplate.h
index 08c76f6cb..9c46e33b2 100644
--- a/source/compiler/dttemplate.h
+++ b/source/compiler/dttemplate.h
@@ -259,6 +259,29 @@ const unsigned char TemplateAgdi[] =
     0x01,0x00,0x00,0x40,0x00,0x00,0x00,0x00   /* 00000028    "...@...." */
 };
 
+const unsigned char TemplateApmt[] =
+{
+    0x41,0x50,0x4D,0x54,0x94,0x00,0x00,0x00,  /* 00000000    "APMT...." */
+    0x00,0x79,0x4E,0x56,0x49,0x44,0x49,0x41,  /* 00000008    ".yNVIDIA" */
+    0x54,0x45,0x4D,0x50,0x4C,0x41,0x54,0x45,  /* 00000010    "TEMPLATE" */
+    0x00,0x00,0x00,0x00,0x49,0x4E,0x54,0x4C,  /* 00000018    "....INTL" */
+    0x17,0x12,0x21,0x20,0x38,0x00,0x04,0x03,  /* 00000020    "..! 8..." */
+    0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,  /* 00000028    "........" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000030    "........" */
+    0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000038    ". ......" */
+    0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000040    ". ......" */
+    0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000048    "........" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000050    "........" */
+    0x6B,0x03,0x00,0x00,0x38,0x00,0x06,0x03,  /* 00000058    "k...8..." */
+    0x01,0x00,0x00,0x00,0x02,0x00,0x00,0x00,  /* 00000060    "........" */
+    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000068    "........" */
+    0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000070    ".0......" */
+    0x00,0x30,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000078    ".0......" */
+    0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,  /* 00000080    "........" */
+    0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00,  /* 00000088    "........" */
+    0x6B,0x03,0x00,0x00                       /* 00000090    "k..."     */
+};
+
 const unsigned char TemplateAsf[] =
 {
     0x41,0x53,0x46,0x21,0x72,0x00,0x00,0x00,  /* 00000000    "ASF!r..." */