* [PATCH v2 1/7] DynamicTablesPkg: AML Code generation for memory ranges
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 2/7] DynamicTablesPkg: AML Code generation to create a named Package() PierreGondois
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
Add helper functions to generate AML Resource Data describing memory
ranges. Memory ranges can be one, double or four words long. They
can be of 'normal', IO or bus number memory type. The following
APIs are exposed:
- AmlCodeGenRdDWordIo ()
- AmlCodeGenRdDWordMemory ()
- AmlCodeGenRdWordBusNumber ()
- AmlCodeGenRdQWordMemory ()
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
Notes:
v2:
- Correct typos/reformulate descriptions. [Sami]
- Add brief description about the parameter in addition to the
specification reference. [Sami]
.../Include/Library/AmlLib/AmlLib.h | 272 +++++
.../AmlLib/CodeGen/AmlResourceDataCodeGen.c | 943 ++++++++++++++++++
2 files changed, 1215 insertions(+)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index 4932f6fd9c8b..59811379c597 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -418,6 +418,278 @@ AmlUpdateRdQWord (
IN UINT64 BaseAddressLength
);
+/** Code generation for the "DWordIO ()" ASL function.
+
+ The Resource Data effectively created is a DWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.2 "DWord Address Space Descriptor".
+ - s19.6.34 "DWordIO".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.34 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsaRanges Possible values are:
+ 0-Reserved
+ 1-NonISAOnly
+ 2-ISAOnly
+ 3-EntireRange
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Not supported. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Not supported. Must be NULL.
+ @param [in] IsDenseTranslation TranslationDensity parameter.
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdDWordIo (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN BOOLEAN IsPosDecode,
+ IN UINT8 IsaRanges,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN BOOLEAN IsDenseTranslation,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ );
+
+/** Code generation for the "DWordMemory ()" ASL function.
+
+ The Resource Data effectively created is a DWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.2 "DWord Address Space Descriptor".
+ - s19.6.35 "DWordMemory".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.35 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] Cacheable Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+ @param [in] IsReadWrite ReadAndWrite parameter.
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Not supported. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Not supported. Must be NULL.
+ @param [in] MemoryRangeType Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdDWordMemory (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 Cacheable,
+ IN BOOLEAN IsReadWrite,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN UINT8 MemoryRangeType,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ );
+
+/** Code generation for the "WordBusNumber ()" ASL function.
+
+ The Resource Data effectively created is a Word Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.3 "Word Address Space Descriptor".
+ - s19.6.149 "WordBusNumber".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.149 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Not supported. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Not supported. Must be NULL.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdWordBusNumber (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN BOOLEAN IsPosDecode,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ );
+
+/** Code generation for the "QWordMemory ()" ASL function.
+
+ The Resource Data effectively created is a QWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.1 "QWord Address Space Descriptor".
+ - s19.6.110 "QWordMemory".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.110 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] Cacheable Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+ @param [in] IsReadWrite ReadAndWrite parameter.
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Not supported. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Not supported. Must be NULL.
+ @param [in] MemoryRangeType Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdQWordMemory (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 Cacheable,
+ IN BOOLEAN IsReadWrite,
+ IN UINT64 AddressGranularity,
+ IN UINT64 AddressMinimum,
+ IN UINT64 AddressMaximum,
+ IN UINT64 AddressTranslation,
+ IN UINT64 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN UINT8 MemoryRangeType,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ );
+
/** Code generation for the "Interrupt ()" ASL function.
The Resource Data effectively created is an Extended Interrupt Resource
diff --git a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c
index 0bdb6c24c5bb..c385ac2645a2 100644
--- a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c
+++ b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlResourceDataCodeGen.c
@@ -100,6 +100,949 @@ error_handler:
return Status;
}
+/** Construct the TypeSpecificFlags field for IO ranges.
+
+ See ACPI 6.4 spec, s19.6.34 for more.
+
+ @param [in] IsaRanges Possible values are:
+ 0-Reserved
+ 1-NonISAOnly
+ 2-ISAOnly
+ 3-EntireRange
+ See ACPI 6.4 spec, s19.6.34 for more.
+ @param [in] IsDenseTranslation TranslationDensity parameter.
+ @param [in] IsTypeStatic TranslationType parameter.
+
+ @return A type specific flags value.
+ MAX_UINT8 if error.
+**/
+STATIC
+UINT8
+EFIAPI
+RdIoRangeSpecificFlags (
+ IN UINT8 IsaRanges,
+ IN BOOLEAN IsDenseTranslation,
+ IN BOOLEAN IsTypeStatic
+ )
+{
+ // Only check type specific parameters.
+ if (IsaRanges > 3) {
+ ASSERT (0);
+ return MAX_UINT8;
+ }
+
+ // Construct TypeSpecificFlags and call the generic function.
+ // Cf ACPI 6.4 specification, Table 6.50:
+ // "Table 6.50: I/O Resource Flag (Resource Type = 1) Definitions"
+ return IsaRanges |
+ (IsTypeStatic ? 0 : BIT4) |
+ (IsDenseTranslation ? 0 : BIT5);
+}
+
+/** Construct the TypeSpecificFlags field for Memory ranges.
+
+ @param [in] Cacheable Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+ @param [in] IsReadWrite ReadAndWrite parameter.
+ @param [in] MemoryRangeType Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+ See ACPI 6.4 spec, s19.6.35 for more.
+ @param [in] IsTypeStatic TranslationType parameter.
+
+ @return A type specific flags value.
+ MAX_UINT8 if error.
+**/
+STATIC
+UINT8
+EFIAPI
+MemoryRangeSpecificFlags (
+ IN UINT8 Cacheable,
+ IN BOOLEAN IsReadWrite,
+ IN UINT8 MemoryRangeType,
+ IN BOOLEAN IsTypeStatic
+ )
+{
+ // Only check type specific parameters.
+ if ((Cacheable > 3) ||
+ (MemoryRangeType > 3)) {
+ ASSERT (0);
+ return MAX_UINT8;
+ }
+
+ // Construct TypeSpecificFlags and call the generic function.
+ // Cf ACPI 6.4 specification, Table 6.49:
+ // "Memory Resource Flag (Resource Type = 0) Definitions"
+ return (IsReadWrite ? BIT0 : 0) |
+ (Cacheable << 1) |
+ (MemoryRangeType << 3) |
+ (IsTypeStatic ? 0 : BIT5);
+}
+
+/** Construct the GeneralFlags field of any Address Space Resource Descriptors.
+
+ E.g.:
+ ACPI 6.4 specification, s6.4.3.5.1 "QWord Address Space Descriptor"
+ for QWord
+
+ See ACPI 6.4 spec, s19.6.36 for more.
+
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+
+ @return A type specific flags value.
+**/
+STATIC
+UINT8
+EFIAPI
+AddressSpaceGeneralFlags (
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed
+ )
+{
+ return (IsPosDecode ? 0 : BIT1) |
+ (IsMinFixed ? BIT2 : 0) |
+ (IsMaxFixed ? BIT3 : 0);
+}
+
+/** Check Address Space Descriptor Fields.
+
+ Cf. ACPI 6.4 Table 6.44:
+ "Valid Combination of Address Space Descriptor Fields"
+
+ See ACPI 6.4 spec, s19.6.36 for more.
+
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+CheckAddressSpaceFields (
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT64 AddressGranularity,
+ IN UINT64 AddressMinimum,
+ IN UINT64 AddressMaximum,
+ IN UINT64 AddressTranslation,
+ IN UINT64 RangeLength
+ )
+{
+ if ((AddressMinimum > AddressMaximum) ||
+ (RangeLength > (AddressMaximum - AddressMinimum + 1)) ||
+ ((AddressGranularity != 0) &&
+ ((AddressGranularity + 1) & AddressGranularity) != 0)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (RangeLength != 0) {
+ if (IsMinFixed ^ IsMaxFixed) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ } else if (IsMinFixed &&
+ IsMaxFixed &&
+ (AddressGranularity != 0) &&
+ ((AddressMaximum - AddressMinimum + 1) != RangeLength)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+ } else {
+ if (IsMinFixed && IsMaxFixed) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ } else if (IsMinFixed &&
+ ((AddressMinimum & AddressGranularity) != 0)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ } else if (IsMaxFixed &&
+ (((AddressMaximum + 1) & AddressGranularity) != 0)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/** Code generation for the "DWordSpace ()" ASL function.
+
+ The Resource Data effectively created is a DWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.2 "DWord Address Space Descriptor".
+ - s19.6.36 "DWordSpace".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.36 for more.
+
+ @param [in] ResourceType Resource type.
+ Possible values are:
+ 0: Memory range
+ 1: I/O range
+ 2: Bus number range
+ 3-191: Reserved
+ 192-255: Hardware Vendor Defined
+ See ACPI 6.4 spec, s6.4.3.5.2 for more.
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] TypeSpecificFlags Type specific flags.
+ See ACPI 6.4 spec, s6.4.3.5.5
+ "Resource Type Specific Flags".
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdDWordSpace (
+ IN UINT8 ResourceType,
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 TypeSpecificFlags,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ AML_DATA_NODE * RdNode;
+ EFI_ACPI_DWORD_ADDRESS_SPACE_DESCRIPTOR RdDWord;
+
+ // ResourceSource and ResourceSourceIndex are unused.
+ if ((TypeSpecificFlags == MAX_UINT8) ||
+ (ResourceSourceIndex != 0) ||
+ (ResourceSource != NULL) ||
+ ((NameOpNode == NULL) && (NewRdNode == NULL))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = CheckAddressSpaceFields (
+ IsMinFixed,
+ IsMaxFixed,
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Header
+ RdDWord.Header.Header.Bits.Name =
+ ACPI_LARGE_DWORD_ADDRESS_SPACE_DESCRIPTOR_NAME;
+ RdDWord.Header.Header.Bits.Type = ACPI_LARGE_ITEM_FLAG;
+ RdDWord.Header.Length = sizeof (EFI_ACPI_DWORD_ADDRESS_SPACE_DESCRIPTOR) -
+ sizeof (ACPI_LARGE_RESOURCE_HEADER);
+
+ // Body
+ RdDWord.ResType = ResourceType;
+ RdDWord.GenFlag = AddressSpaceGeneralFlags (
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed
+ );
+ RdDWord.SpecificFlag = TypeSpecificFlags;
+ RdDWord.AddrSpaceGranularity = AddressGranularity;
+ RdDWord.AddrRangeMin = AddressMinimum;
+ RdDWord.AddrRangeMax = AddressMaximum;
+ RdDWord.AddrTranslationOffset = AddressTranslation;
+ RdDWord.AddrLen = RangeLength;
+
+ Status = AmlCreateDataNode (
+ EAmlNodeDataTypeResourceData,
+ (UINT8*)&RdDWord,
+ sizeof (EFI_ACPI_DWORD_ADDRESS_SPACE_DESCRIPTOR),
+ &RdNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ return LinkRdNode (RdNode, NameOpNode, NewRdNode);
+}
+
+/** Code generation for the "DWordIO ()" ASL function.
+
+ The Resource Data effectively created is a DWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.2 "DWord Address Space Descriptor".
+ - s19.6.34 "DWordIO".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.34 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsaRanges Possible values are:
+ 0-Reserved
+ 1-NonISAOnly
+ 2-ISAOnly
+ 3-EntireRange
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] IsDenseTranslation TranslationDensity parameter.
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdDWordIo (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN BOOLEAN IsPosDecode,
+ IN UINT8 IsaRanges,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN BOOLEAN IsDenseTranslation,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ return AmlCodeGenRdDWordSpace (
+ ACPI_ADDRESS_SPACE_TYPE_IO,
+ IsResourceConsumer,
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed,
+ RdIoRangeSpecificFlags (
+ IsaRanges,
+ IsDenseTranslation,
+ IsTypeStatic
+ ),
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength,
+ ResourceSourceIndex,
+ ResourceSource,
+ NameOpNode,
+ NewRdNode
+ );
+}
+
+/** Code generation for the "DWordMemory ()" ASL function.
+
+ The Resource Data effectively created is a DWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.2 "DWord Address Space Descriptor".
+ - s19.6.35 "DWordMemory".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.35 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] Cacheable Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+ @param [in] IsReadWrite ReadAndWrite parameter.
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] MemoryRangeType Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdDWordMemory (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 Cacheable,
+ IN BOOLEAN IsReadWrite,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN UINT8 MemoryRangeType,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ return AmlCodeGenRdDWordSpace (
+ ACPI_ADDRESS_SPACE_TYPE_MEM,
+ IsResourceConsumer,
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed,
+ MemoryRangeSpecificFlags (
+ Cacheable,
+ IsReadWrite,
+ MemoryRangeType,
+ IsTypeStatic
+ ),
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength,
+ ResourceSourceIndex,
+ ResourceSource,
+ NameOpNode,
+ NewRdNode
+ );
+}
+
+/** Code generation for the "WordSpace ()" ASL function.
+
+ The Resource Data effectively created is a Word Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.3 "Word Address Space Descriptor".
+ - s19.6.151 "WordSpace".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.151 for more.
+
+ @param [in] ResourceType Resource type.
+ Possible values are:
+ 0: Memory range
+ 1: I/O range
+ 2: Bus number range
+ 3-191: Reserved
+ 192-255: Hardware Vendor Defined
+ See ACPI 6.4 spec, s6.4.3.5.3 for more.
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] TypeSpecificFlags Type specific flags.
+ See ACPI 6.4 spec, s6.4.3.5.5
+ "Resource Type Specific Flags".
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdWordSpace (
+ IN UINT8 ResourceType,
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 TypeSpecificFlags,
+ IN UINT16 AddressGranularity,
+ IN UINT16 AddressMinimum,
+ IN UINT16 AddressMaximum,
+ IN UINT16 AddressTranslation,
+ IN UINT16 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ AML_DATA_NODE * RdNode;
+ EFI_ACPI_WORD_ADDRESS_SPACE_DESCRIPTOR Rdword;
+
+ // ResourceSource and ResourceSourceIndex are unused.
+ if ((TypeSpecificFlags == MAX_UINT8) ||
+ (ResourceSourceIndex != 0) ||
+ (ResourceSource != NULL) ||
+ ((NameOpNode == NULL) && (NewRdNode == NULL))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = CheckAddressSpaceFields (
+ IsMinFixed,
+ IsMaxFixed,
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Header
+ Rdword.Header.Header.Bits.Name =
+ ACPI_LARGE_WORD_ADDRESS_SPACE_DESCRIPTOR_NAME;
+ Rdword.Header.Header.Bits.Type = ACPI_LARGE_ITEM_FLAG;
+ Rdword.Header.Length = sizeof (EFI_ACPI_WORD_ADDRESS_SPACE_DESCRIPTOR) -
+ sizeof (ACPI_LARGE_RESOURCE_HEADER);
+
+ // Body
+ Rdword.ResType = ResourceType;
+ Rdword.GenFlag = AddressSpaceGeneralFlags (
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed
+ );
+ Rdword.SpecificFlag = TypeSpecificFlags;
+ Rdword.AddrSpaceGranularity = AddressGranularity;
+ Rdword.AddrRangeMin = AddressMinimum;
+ Rdword.AddrRangeMax = AddressMaximum;
+ Rdword.AddrTranslationOffset = AddressTranslation;
+ Rdword.AddrLen = RangeLength;
+
+ Status = AmlCreateDataNode (
+ EAmlNodeDataTypeResourceData,
+ (UINT8*)&Rdword,
+ sizeof (EFI_ACPI_WORD_ADDRESS_SPACE_DESCRIPTOR),
+ &RdNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ return LinkRdNode (RdNode, NameOpNode, NewRdNode);
+}
+
+/** Code generation for the "WordBusNumber ()" ASL function.
+
+ The Resource Data effectively created is a Word Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.3 "Word Address Space Descriptor".
+ - s19.6.149 "WordBusNumber".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.149 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdWordBusNumber (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN BOOLEAN IsPosDecode,
+ IN UINT32 AddressGranularity,
+ IN UINT32 AddressMinimum,
+ IN UINT32 AddressMaximum,
+ IN UINT32 AddressTranslation,
+ IN UINT32 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ // There is no Type Specific Flags for buses.
+ return AmlCodeGenRdWordSpace (
+ ACPI_ADDRESS_SPACE_TYPE_BUS,
+ IsResourceConsumer,
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed,
+ 0,
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength,
+ ResourceSourceIndex,
+ ResourceSource,
+ NameOpNode,
+ NewRdNode
+ );
+}
+
+/** Code generation for the "QWordSpace ()" ASL function.
+
+ The Resource Data effectively created is a QWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.1 "QWord Address Space Descriptor".
+ - s19.6.111 "QWordSpace".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.111 for more.
+
+ @param [in] ResourceType Resource type.
+ Possible values are:
+ 0: Memory range
+ 1: I/O range
+ 2: Bus number range
+ 3-191: Reserved
+ 192-255: Hardware Vendor Defined
+ See ACPI 6.4 spec, s6.4.3.5.1 for more.
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] TypeSpecificFlags Type specific flags.
+ See ACPI 6.4 spec, s6.4.3.5.5
+ "Resource Type Specific Flags".
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdQWordSpace (
+ IN UINT8 ResourceType,
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 TypeSpecificFlags,
+ IN UINT64 AddressGranularity,
+ IN UINT64 AddressMinimum,
+ IN UINT64 AddressMaximum,
+ IN UINT64 AddressTranslation,
+ IN UINT64 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ AML_DATA_NODE * RdNode;
+ EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR RdQword;
+
+ // ResourceSource and ResourceSourceIndex are unused.
+ if ((TypeSpecificFlags == MAX_UINT8) ||
+ (ResourceSourceIndex != 0) ||
+ (ResourceSource != NULL) ||
+ ((NameOpNode == NULL) && (NewRdNode == NULL))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = CheckAddressSpaceFields (
+ IsMinFixed,
+ IsMaxFixed,
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Header
+ RdQword.Header.Header.Bits.Name =
+ ACPI_LARGE_QWORD_ADDRESS_SPACE_DESCRIPTOR_NAME;
+ RdQword.Header.Header.Bits.Type = ACPI_LARGE_ITEM_FLAG;
+ RdQword.Header.Length = sizeof (EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR) -
+ sizeof (ACPI_LARGE_RESOURCE_HEADER);
+
+ // Body
+ RdQword.ResType = ResourceType;
+ RdQword.GenFlag = AddressSpaceGeneralFlags (
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed
+ );
+ RdQword.SpecificFlag = TypeSpecificFlags;
+ RdQword.AddrSpaceGranularity = AddressGranularity;
+ RdQword.AddrRangeMin = AddressMinimum;
+ RdQword.AddrRangeMax = AddressMaximum;
+ RdQword.AddrTranslationOffset = AddressTranslation;
+ RdQword.AddrLen = RangeLength;
+
+ Status = AmlCreateDataNode (
+ EAmlNodeDataTypeResourceData,
+ (UINT8*)&RdQword,
+ sizeof (EFI_ACPI_QWORD_ADDRESS_SPACE_DESCRIPTOR),
+ &RdNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ return LinkRdNode (RdNode, NameOpNode, NewRdNode);
+}
+
+/** Code generation for the "QWordMemory ()" ASL function.
+
+ The Resource Data effectively created is a QWord Address Space Resource
+ Data. Cf ACPI 6.4:
+ - s6.4.3.5.1 "QWord Address Space Descriptor".
+ - s19.6.110 "QWordMemory".
+
+ The created resource data node can be:
+ - appended to the list of resource data elements of the NameOpNode.
+ In such case NameOpNode must be defined by a the "Name ()" ASL statement
+ and initially contain a "ResourceTemplate ()".
+ - returned through the NewRdNode parameter.
+
+ See ACPI 6.4 spec, s19.6.110 for more.
+
+ @param [in] IsResourceConsumer ResourceUsage parameter.
+ @param [in] IsPosDecode Decode parameter.
+ @param [in] IsMinFixed Minimum address is fixed.
+ @param [in] IsMaxFixed Maximum address is fixed.
+ @param [in] Cacheable Possible values are:
+ 0-The memory is non-cacheable
+ 1-The memory is cacheable
+ 2-The memory is cacheable and supports
+ write combining
+ 3-The memory is cacheable and prefetchable
+ @param [in] IsReadWrite ReadAndWrite parameter.
+ @param [in] AddressGranularity Address granularity.
+ @param [in] AddressMinimum Minimum address.
+ @param [in] AddressMaximum Maximum address.
+ @param [in] AddressTranslation Address translation.
+ @param [in] RangeLength Range length.
+ @param [in] ResourceSourceIndex Resource Source index.
+ Unused. Must be 0.
+ @param [in] ResourceSource Resource Source.
+ Unused. Must be NULL.
+ @param [in] MemoryRangeType Possible values are:
+ 0-AddressRangeMemory
+ 1-AddressRangeReserved
+ 2-AddressRangeACPI
+ 3-AddressRangeNVS
+ @param [in] IsTypeStatic TranslationType parameter.
+ @param [in] NameOpNode NameOp object node defining a named object.
+ If provided, append the new resource data
+ node to the list of resource data elements
+ of this node.
+ @param [out] NewRdNode If provided and success,
+ contain the created node.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenRdQWordMemory (
+ IN BOOLEAN IsResourceConsumer,
+ IN BOOLEAN IsPosDecode,
+ IN BOOLEAN IsMinFixed,
+ IN BOOLEAN IsMaxFixed,
+ IN UINT8 Cacheable,
+ IN BOOLEAN IsReadWrite,
+ IN UINT64 AddressGranularity,
+ IN UINT64 AddressMinimum,
+ IN UINT64 AddressMaximum,
+ IN UINT64 AddressTranslation,
+ IN UINT64 RangeLength,
+ IN UINT8 ResourceSourceIndex,
+ IN CONST CHAR8 *ResourceSource,
+ IN UINT8 MemoryRangeType,
+ IN BOOLEAN IsTypeStatic,
+ IN AML_OBJECT_NODE_HANDLE NameOpNode, OPTIONAL
+ OUT AML_DATA_NODE_HANDLE *NewRdNode OPTIONAL
+ )
+{
+ return AmlCodeGenRdQWordSpace (
+ ACPI_ADDRESS_SPACE_TYPE_MEM,
+ IsResourceConsumer,
+ IsPosDecode,
+ IsMinFixed,
+ IsMaxFixed,
+ MemoryRangeSpecificFlags (
+ Cacheable,
+ IsReadWrite,
+ MemoryRangeType,
+ IsTypeStatic
+ ),
+ AddressGranularity,
+ AddressMinimum,
+ AddressMaximum,
+ AddressTranslation,
+ RangeLength,
+ ResourceSourceIndex,
+ ResourceSource,
+ NameOpNode,
+ NewRdNode
+ );
+}
+
/** Code generation for the "Interrupt ()" ASL function.
The Resource Data effectively created is an Extended Interrupt Resource
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 2/7] DynamicTablesPkg: AML Code generation to create a named Package()
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
2021-10-11 16:45 ` [PATCH v2 1/7] DynamicTablesPkg: AML Code generation for memory ranges PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 3/7] DynamicTablesPkg: AML Code generation to create a named ResourceTemplate() PierreGondois
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
Add AmlCodeGenNamePackage() to generate code for a Package().
AmlCodeGenNamePackage ("PACK", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(PACK, Package () {})
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../Include/Library/AmlLib/AmlLib.h | 28 ++++++++++
.../Common/AmlLib/CodeGen/AmlCodeGen.c | 55 +++++++++++++++++++
2 files changed, 83 insertions(+)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index 59811379c597..d2e9cbe26d75 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -835,6 +835,34 @@ AmlCodeGenNameInteger (
OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL
);
+/** AML code generation for a Name object node, containing a Package.
+
+ AmlCodeGenNamePackage ("PKG0", ParentNode, NewObjectNode) is
+ equivalent of the following ASL code:
+ Name(PKG0, Package () {})
+
+ @ingroup CodeGenApis
+
+ @param [in] NameString The new variable name.
+ Must be a NULL-terminated ASL NameString
+ e.g.: "DEV0", "DV15.DEV0", etc.
+ The input string is copied.
+ @param [in] ParentNode If provided, set ParentNode as the parent
+ of the node created.
+ @param [out] NewObjectNode If success, contains the created node.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenNamePackage (
+ IN CONST CHAR8 * NameString,
+ IN AML_NODE_HANDLE ParentNode, OPTIONAL
+ OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL
+ );
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
diff --git a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
index 64064018aecb..1ba75fbd6f12 100644
--- a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
+++ b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
@@ -746,6 +746,61 @@ AmlCodeGenNameInteger (
return Status;
}
+/** AML code generation for a Name object node, containing a Package.
+
+ AmlCodeGenNamePackage ("PKG0", ParentNode, NewObjectNode) is
+ equivalent of the following ASL code:
+ Name(PKG0, Package () {})
+
+ @param [in] NameString The new variable name.
+ Must be a NULL-terminated ASL NameString
+ e.g.: "DEV0", "DV15.DEV0", etc.
+ The input string is copied.
+ @param [in] ParentNode If provided, set ParentNode as the parent
+ of the node created.
+ @param [out] NewObjectNode If success, contains the created node.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenNamePackage (
+ IN CONST CHAR8 * NameString,
+ IN AML_NODE_HEADER * ParentNode, OPTIONAL
+ OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ AML_OBJECT_NODE * PackageNode;
+
+ if ((NameString == NULL) ||
+ ((ParentNode == NULL) && (NewObjectNode == NULL))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = AmlCodeGenPackage (&PackageNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Status = AmlCodeGenName (
+ NameString,
+ PackageNode,
+ ParentNode,
+ NewObjectNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ AmlDeleteTree ((AML_NODE_HEADER*)PackageNode);
+ }
+
+ return Status;
+}
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 3/7] DynamicTablesPkg: AML Code generation to create a named ResourceTemplate()
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
2021-10-11 16:45 ` [PATCH v2 1/7] DynamicTablesPkg: AML Code generation for memory ranges PierreGondois
2021-10-11 16:45 ` [PATCH v2 2/7] DynamicTablesPkg: AML Code generation to create a named Package() PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 4/7] DynamicTablesPkg: AML Code generation to add _PRT entries PierreGondois
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
Add AmlCodeGenNameResourceTemplate() to generate code for a
ResourceTemplate().
AmlCodeGenNameResourceTemplate ("REST", ParentNode, NewObjectNode) is
equivalent of the following ASL code:
Name(REST, ResourceTemplate () {})
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../Include/Library/AmlLib/AmlLib.h | 28 ++++++++++
.../Common/AmlLib/CodeGen/AmlCodeGen.c | 55 +++++++++++++++++++
2 files changed, 83 insertions(+)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index d2e9cbe26d75..763e2ce7d268 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -863,6 +863,34 @@ AmlCodeGenNamePackage (
OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL
);
+/** AML code generation for a Name object node, containing a ResourceTemplate.
+
+ AmlCodeGenNameResourceTemplate ("PRS0", ParentNode, NewObjectNode) is
+ equivalent of the following ASL code:
+ Name(PRS0, ResourceTemplate () {})
+
+ @ingroup CodeGenApis
+
+ @param [in] NameString The new variable name.
+ Must be a NULL-terminated ASL NameString
+ e.g.: "DEV0", "DV15.DEV0", etc.
+ The input string is copied.
+ @param [in] ParentNode If provided, set ParentNode as the parent
+ of the node created.
+ @param [out] NewObjectNode If success, contains the created node.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenNameResourceTemplate (
+ IN CONST CHAR8 * NameString,
+ IN AML_NODE_HANDLE ParentNode, OPTIONAL
+ OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL
+ );
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
diff --git a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
index 1ba75fbd6f12..8f48f214648f 100644
--- a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
+++ b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
@@ -801,6 +801,61 @@ AmlCodeGenNamePackage (
return Status;
}
+/** AML code generation for a Name object node, containing a ResourceTemplate.
+
+ AmlCodeGenNameResourceTemplate ("PRS0", ParentNode, NewObjectNode) is
+ equivalent of the following ASL code:
+ Name(PRS0, ResourceTemplate () {})
+
+ @param [in] NameString The new variable name.
+ Must be a NULL-terminated ASL NameString
+ e.g.: "DEV0", "DV15.DEV0", etc.
+ The input string is copied.
+ @param [in] ParentNode If provided, set ParentNode as the parent
+ of the node created.
+ @param [out] NewObjectNode If success, contains the created node.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlCodeGenNameResourceTemplate (
+ IN CONST CHAR8 * NameString,
+ IN AML_NODE_HEADER * ParentNode, OPTIONAL
+ OUT AML_OBJECT_NODE ** NewObjectNode OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ AML_OBJECT_NODE * ResourceTemplateNode;
+
+ if ((NameString == NULL) ||
+ ((ParentNode == NULL) && (NewObjectNode == NULL))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Status = AmlCodeGenName (
+ NameString,
+ ResourceTemplateNode,
+ ParentNode,
+ NewObjectNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ AmlDeleteTree ((AML_NODE_HEADER*)ResourceTemplateNode);
+ }
+
+ return Status;
+}
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 4/7] DynamicTablesPkg: AML Code generation to add _PRT entries
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
` (2 preceding siblings ...)
2021-10-11 16:45 ` [PATCH v2 3/7] DynamicTablesPkg: AML Code generation to create a named ResourceTemplate() PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 5/7] DynamicTablesPkg: Add AmlAttachNode() PierreGondois
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
_PRT entries can describe interrupt mapping for Pci devices. The
object is described in ACPI 6.4 s6.2.13 "_PRT (PCI Routing Table)".
Add AmlCodeGenPrtEntry() helper function to add _PRT entries
to an existing _PRT object.
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../Include/Library/AmlLib/AmlLib.h | 52 +++++
.../Common/AmlLib/CodeGen/AmlCodeGen.c | 210 ++++++++++++++++++
2 files changed, 262 insertions(+)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index 763e2ce7d268..aef5f55ce319 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -891,6 +891,58 @@ AmlCodeGenNameResourceTemplate (
OUT AML_OBJECT_NODE_HANDLE * NewObjectNode OPTIONAL
);
+/** Add a _PRT entry.
+
+ AmlCodeGenPrtEntry (0x0FFFF, 0, "LNKA", 0, PrtNameNode) is
+ equivalent of the following ASL code:
+ Package (4) {
+ 0x0FFFF, // Address: Device address (([Device Id] << 16) | 0xFFFF).
+ 0, // Pin: PCI pin number of the device (0-INTA, ...).
+ LNKA // Source: Name of the device that allocates the interrupt
+ // to which the above pin is connected.
+ 0 // Source Index: Source is assumed to only describe one
+ // interrupt, so let it to index 0.
+ }
+
+ The package is added at the tail of the list of the input _PRT node
+ name:
+ Name (_PRT, Package () {
+ [Pre-existing _PRT entries],
+ [Newly created _PRT entry]
+ })
+
+ Cf. ACPI 6.4, s6.2.13 "_PRT (PCI Routing Table)"
+
+ @ingroup CodeGenApis
+
+ @param [in] Address Address. Cf ACPI 6.4 specification, Table 6.2:
+ "ADR Object Address Encodings":
+ High word-Device #, Low word-Function #. (for
+ example, device 3, function 2 is 0x00030002).
+ To refer to all the functions on a device #,
+ use a function number of FFFF).
+ @param [in] Pin PCI pin number of the device (0-INTA ... 3-INTD).
+ Must be between 0-3.
+ @param [in] LinkName Link Name, i.e. device in the AML NameSpace
+ describing the interrupt used.
+ The input string is copied.
+ @param [in] SourceIndex Source index or GSIV.
+ @param [in] PrtNameNode Prt Named node to add the object to ....
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlAddPrtEntry (
+ IN UINT32 Address,
+ IN UINT8 Pin,
+ IN CONST CHAR8 * LinkName,
+ IN UINT32 SourceIndex,
+ IN AML_OBJECT_NODE_HANDLE PrtNameNode
+ );
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
diff --git a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
index 8f48f214648f..5f2b39305540 100644
--- a/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
+++ b/DynamicTablesPkg/Library/Common/AmlLib/CodeGen/AmlCodeGen.c
@@ -856,6 +856,216 @@ AmlCodeGenNameResourceTemplate (
return Status;
}
+/** Add a _PRT entry.
+
+ AmlCodeGenPrtEntry (0x0FFFF, 0, "LNKA", 0, PrtNameNode) is
+ equivalent of the following ASL code:
+ Package (4) {
+ 0x0FFFF, // Address: Device address (([Device Id] << 16) | 0xFFFF).
+ 0, // Pin: PCI pin number of the device (0-INTA, ...).
+ LNKA // Source: Name of the device that allocates the interrupt
+ // to which the above pin is connected.
+ 0 // Source Index: Source is assumed to only describe one
+ // interrupt, so let it to index 0.
+ }
+
+ The package is added at the tail of the list of the input _PRT node
+ name:
+ Name (_PRT, Package () {
+ [Pre-existing _PRT entries],
+ [Newly created _PRT entry]
+ })
+
+ Cf. ACPI 6.4 specification:
+ - s6.2.13 "_PRT (PCI Routing Table)"
+ - s6.1.1 "_ADR (Address)"
+
+ @param [in] Address Address. Cf ACPI 6.4 specification, Table 6.2:
+ "ADR Object Address Encodings":
+ High word-Device #, Low word-Function #. (for
+ example, device 3, function 2 is 0x00030002).
+ To refer to all the functions on a device #,
+ use a function number of FFFF).
+ @param [in] Pin PCI pin number of the device (0-INTA ... 3-INTD).
+ Must be between 0-3.
+ @param [in] LinkName Link Name, i.e. device in the AML NameSpace
+ describing the interrupt used.
+ The input string is copied.
+ @param [in] SourceIndex Source index or GSIV.
+ @param [in] PrtNameNode Prt Named node to add the object to ....
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+EFI_STATUS
+EFIAPI
+AmlAddPrtEntry (
+ IN UINT32 Address,
+ IN UINT8 Pin,
+ IN CONST CHAR8 * LinkName,
+ IN UINT32 SourceIndex,
+ IN AML_OBJECT_NODE_HANDLE PrtNameNode
+ )
+{
+ EFI_STATUS Status;
+ AML_OBJECT_NODE * PrtEntryList;
+ AML_OBJECT_NODE * PackageNode;
+ AML_OBJECT_NODE * NewElementNode;
+
+ CHAR8 * AmlNameString;
+ UINT32 AmlNameStringSize;
+ AML_DATA_NODE * DataNode;
+
+ if ((Pin > 3) ||
+ (LinkName == NULL) ||
+ (PrtNameNode == NULL) ||
+ (AmlGetNodeType ((AML_NODE_HANDLE)PrtNameNode) != EAmlNodeObject) ||
+ (!AmlNodeHasOpCode (PrtNameNode, AML_NAME_OP, 0)) ||
+ !AmlNameOpCompareName (PrtNameNode, "_PRT")) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ NewElementNode = NULL;
+ AmlNameString = NULL;
+ DataNode = NULL;
+
+ // Get the Package object node of the _PRT node,
+ // which is the 2nd fixed argument (i.e. index 1).
+ PrtEntryList = (AML_OBJECT_NODE_HANDLE)AmlGetFixedArgument (
+ PrtNameNode,
+ EAmlParseIndexTerm1
+ );
+ if ((PrtEntryList == NULL) ||
+ (AmlGetNodeType ((AML_NODE_HANDLE)PrtEntryList) != EAmlNodeObject) ||
+ (!AmlNodeHasOpCode (PrtEntryList, AML_PACKAGE_OP, 0))) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ // The new _PRT entry.
+ Status = AmlCodeGenPackage (&PackageNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Status = AmlCodeGenInteger (Address, &NewElementNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ Status = AmlVarListAddTail (
+ (AML_NODE_HANDLE)PackageNode,
+ (AML_NODE_HANDLE)NewElementNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ NewElementNode = NULL;
+
+ Status = AmlCodeGenInteger (Pin, &NewElementNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ Status = AmlVarListAddTail (
+ (AML_NODE_HANDLE)PackageNode,
+ (AML_NODE_HANDLE)NewElementNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ NewElementNode = NULL;
+
+ Status = ConvertAslNameToAmlName (LinkName, &AmlNameString);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ Status = AmlGetNameStringSize (AmlNameString, &AmlNameStringSize);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ Status = AmlCreateDataNode (
+ EAmlNodeDataTypeNameString,
+ (UINT8*)AmlNameString,
+ AmlNameStringSize,
+ &DataNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ // AmlNameString will be freed before returning.
+
+ Status = AmlVarListAddTail (
+ (AML_NODE_HANDLE)PackageNode,
+ (AML_NODE_HANDLE)DataNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ DataNode = NULL;
+
+ Status = AmlCodeGenInteger (SourceIndex, &NewElementNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ Status = AmlVarListAddTail (
+ (AML_NODE_HANDLE)PackageNode,
+ (AML_NODE_HANDLE)NewElementNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ // Append to the the list of _PRT entries.
+ Status = AmlVarListAddTail (
+ (AML_NODE_HANDLE)PrtEntryList,
+ (AML_NODE_HANDLE)PackageNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto error_handler;
+ }
+
+ // Free AmlNameString before returning as it is copied
+ // in the call to AmlCreateDataNode().
+ goto exit_handler;
+
+error_handler:
+ AmlDeleteTree ((AML_NODE_HANDLE)PackageNode);
+ if (NewElementNode != NULL) {
+ AmlDeleteTree ((AML_NODE_HANDLE)NewElementNode);
+ }
+ if (DataNode != NULL) {
+ AmlDeleteTree ((AML_NODE_HANDLE)DataNode);
+ }
+
+exit_handler:
+ if (AmlNameString != NULL) {
+ FreePool (AmlNameString);
+ }
+ return Status;
+}
+
/** AML code generation for a Device object node.
AmlCodeGenDevice ("COM0", ParentNode, NewObjectNode) is
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 5/7] DynamicTablesPkg: Add AmlAttachNode()
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
` (3 preceding siblings ...)
2021-10-11 16:45 ` [PATCH v2 4/7] DynamicTablesPkg: AML Code generation to add _PRT entries PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 6/7] DynamicTablesPkg: Add Pci related objects PierreGondois
2021-10-11 16:45 ` [PATCH v2 7/7] DynamicTablesPkg: SSDT Pci express generator PierreGondois
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
This function allows to add a node as the last node of a parent node
in an AML tree. For instance,
ASL code corresponding to NewNode:
Name (_UID, 0)
ASL code corresponding to ParentNode:
Device (PCI0) {
Name(_HID, EISAID("PNP0A08"))
}
"AmlAttachNode (ParentNode, NewNode)" will result in:
ASL code:
Device (PCI0) {
Name(_HID, EISAID("PNP0A08"))
Name (_UID, 0)
}
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../Include/Library/AmlLib/AmlLib.h | 33 +++++++++++++++++
.../Library/Common/AmlLib/Api/AmlApi.c | 36 +++++++++++++++++++
2 files changed, 69 insertions(+)
diff --git a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
index aef5f55ce319..15517b5efac1 100644
--- a/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
+++ b/DynamicTablesPkg/Include/Library/AmlLib/AmlLib.h
@@ -166,6 +166,39 @@ AmlDetachNode (
IN AML_NODE_HANDLE Node
);
+/** Attach a node in an AML tree.
+
+ The node will be added as the last statement of the ParentNode.
+ E.g.:
+ ASL code corresponding to NewNode:
+ Name (_UID, 0)
+
+ ASL code corresponding to ParentNode:
+ Device (PCI0) {
+ Name(_HID, EISAID("PNP0A08"))
+ }
+
+ "AmlAttachNode (ParentNode, NewNode)" will result in:
+ ASL code:
+ Device (PCI0) {
+ Name(_HID, EISAID("PNP0A08"))
+ Name (_UID, 0)
+ }
+
+ @param [in] ParentNode Pointer to the parent node.
+ Must be a root or an object node.
+ @param [in] NewNode Pointer to the node to add.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+**/
+EFI_STATUS
+EFIAPI
+AmlAttachNode (
+ IN AML_NODE_HANDLE ParentNode,
+ IN AML_NODE_HANDLE NewNode
+ );
+
/** Find a node in the AML namespace, given an ASL path and a reference Node.
- The AslPath can be an absolute path, or a relative path from the
diff --git a/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c b/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c
index 6f9e3f6f2805..def581299f5c 100644
--- a/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c
+++ b/DynamicTablesPkg/Library/Common/AmlLib/Api/AmlApi.c
@@ -379,6 +379,42 @@ AmlNameOpGetNextRdNode (
return EFI_SUCCESS;
}
+/** Attach a node in an AML tree.
+
+ The node will be added as the last statement of the ParentNode.
+ E.g.:
+ ASL code corresponding to NewNode:
+ Name (_UID, 0)
+
+ ASL code corresponding to ParentNode:
+ Device (PCI0) {
+ Name(_HID, EISAID("PNP0A08"))
+ }
+
+ "AmlAttachNode (ParentNode, NewNode)" will result in:
+ ASL code:
+ Device (PCI0) {
+ Name(_HID, EISAID("PNP0A08"))
+ Name (_UID, 0)
+ }
+
+ @param [in] ParentNode Pointer to the parent node.
+ Must be a root or an object node.
+ @param [in] NewNode Pointer to the node to add.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+**/
+EFI_STATUS
+EFIAPI
+AmlAttachNode (
+ IN AML_NODE_HANDLE ParentNode,
+ IN AML_NODE_HANDLE NewNode
+ )
+{
+ return AmlVarListAddTail (ParentNode, NewNode);
+}
+
// DEPRECATED APIS
#ifndef DISABLE_NEW_DEPRECATED_INTERFACES
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 6/7] DynamicTablesPkg: Add Pci related objects
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
` (4 preceding siblings ...)
2021-10-11 16:45 ` [PATCH v2 5/7] DynamicTablesPkg: Add AmlAttachNode() PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
2021-10-11 16:45 ` [PATCH v2 7/7] DynamicTablesPkg: SSDT Pci express generator PierreGondois
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
Introduce the following CmObj in the ArmNameSpaceObjects:
- CM_ARM_PCI_ADDRESS_MAP_INFO
- CM_ARM_PCI_INTERRUPT_MAP_INFO
These objects allow to describe address range mapping
of Pci busses and interrupt mapping of Pci devices.
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
.../Include/ArmNameSpaceObjects.h | 78 +++++++++++++++++++
.../ConfigurationManagerObjectParser.c | 28 ++++++-
2 files changed, 105 insertions(+), 1 deletion(-)
diff --git a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
index f19c9c706669..ac19fa1f6e6c 100644
--- a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
+++ b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
@@ -59,6 +59,8 @@ typedef enum ArmObjectID {
EArmObjSerialPortInfo, ///< 35 - Generic Serial Port Info
EArmObjCmn600Info, ///< 36 - CMN-600 Info
EArmObjLpiInfo, ///< 37 - Lpi Info
+ EArmObjPciAddressMapInfo, ///< 38 - Pci Address Map Info
+ EArmObjPciInterruptMapInfo, ///< 39 - Pci Interrupt Map Info
EArmObjMax
} EARM_OBJECT_ID;
@@ -433,6 +435,14 @@ typedef struct CmArmPciConfigSpaceInfo {
/// The end bus number
UINT8 EndBusNumber;
+
+ /// Optional field: Reference Token for address mapping.
+ /// Token identifying a CM_ARM_OBJ_REF structure.
+ CM_OBJECT_TOKEN AddressMapToken;
+
+ /// Optional field: Reference Token for interrupt mapping.
+ /// Token identifying a CM_ARM_OBJ_REF structure.
+ CM_OBJECT_TOKEN InterruptMapToken;
} CM_ARM_PCI_CONFIG_SPACE_INFO;
/** A structure that describes the
@@ -666,6 +676,10 @@ typedef struct CmArmGenericInterrupt {
UINT32 Interrupt;
/// Flags
+ /// BIT0: 0: Interrupt is Level triggered
+ /// 1: Interrupt is Edge triggered
+ /// BIT1: 0: Interrupt is Active high
+ /// 1: Interrupt is Active low
UINT32 Flags;
} CM_ARM_GENERIC_INTERRUPT;
@@ -946,6 +960,70 @@ typedef struct CmArmLpiInfo {
CHAR8 StateName[16];
} CM_ARM_LPI_INFO;
+/** A structure that describes a PCI Address Map.
+
+ The memory-ranges used by the PCI bus are described by this object.
+
+ ID: EArmObjPciAddressMapInfo
+*/
+typedef struct CmArmPciAddressMapInfo {
+ /** Pci address space code
+
+ Available values are:
+ - 0: Configuration Space
+ - 1: I/O Space
+ - 2: 32-bit-address Memory Space
+ - 3: 64-bit-address Memory Space
+ */
+ UINT8 SpaceCode;
+
+ /// PCI address
+ UINT64 PciAddress;
+
+ /// Cpu address
+ UINT64 CpuAddress;
+
+ /// Address size
+ UINT64 AddressSize;
+} CM_ARM_PCI_ADDRESS_MAP_INFO;
+
+/** A structure that describes a PCI Interrupt Map.
+
+ The legacy PCI interrupts used by PCI devices are described by this object.
+
+ Cf Devicetree Specification - Release v0.3
+ s2.4.3 "Interrupt Nexus Properties"
+
+ ID: EArmObjPciInterruptMapInfo
+*/
+typedef struct CmArmPciInterruptMapInfo {
+ /// Pci Bus.
+ /// Value on 8 bits (max 255).
+ UINT8 PciBus;
+
+ /// Pci Bus.
+ /// Value on 5 bits (max 31).
+ UINT8 PciDevice;
+
+ /** PCI interrupt
+
+ ACPI bindings are used:
+ Cf. ACPI 6.4, s6.2.13 _PRT (PCI Routing Table):
+ "0-INTA, 1-INTB, 2-INTC, 3-INTD"
+
+ Device-tree bindings are shifted by 1:
+ "INTA=1, INTB=2, INTC=3, INTD=4"
+ */
+ UINT8 PciInterrupt;
+
+ /** Interrupt controller interrupt.
+
+ Cf Devicetree Specification - Release v0.3
+ s2.4.3 "Interrupt Nexus Properties": "parent interrupt specifier"
+ */
+ CM_ARM_GENERIC_INTERRUPT IntcInterrupt;
+} CM_ARM_PCI_INTERRUPT_MAP_INFO;
+
#pragma pack()
#endif // ARM_NAMESPACE_OBJECTS_H_
diff --git a/DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c b/DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c
index 2337d47e3fb3..48ddc2c58c3d 100644
--- a/DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c
+++ b/DynamicTablesPkg/Library/Common/TableHelperLib/ConfigurationManagerObjectParser.c
@@ -152,7 +152,9 @@ STATIC CONST CM_OBJ_PARSER CmArmPciConfigSpaceInfoParser[] = {
{"BaseAddress", 8, "0x%llx", NULL},
{"PciSegmentGroupNumber", 2, "0x%x", NULL},
{"StartBusNumber", 1, "0x%x", NULL},
- {"EndBusNumber", 1, "0x%x", NULL}
+ {"EndBusNumber", 1, "0x%x", NULL},
+ {"AddressMapToken", sizeof (CM_OBJECT_TOKEN), "0x%p", NULL},
+ {"InterruptMapToken", sizeof (CM_OBJECT_TOKEN), "0x%p", NULL},
};
/** A parser for EArmObjHypervisorVendorIdentity.
@@ -401,6 +403,26 @@ STATIC CONST CM_OBJ_PARSER CmArmLpiInfoParser[] = {
{"StateName", 16, "0x%a", NULL},
};
+/** A parser for EArmObjPciAddressMapInfo.
+*/
+STATIC CONST CM_OBJ_PARSER CmArmPciAddressMapInfoParser[] = {
+ {"SpaceCode", 1, "%d", NULL},
+ {"PciAddress", 8, "0x%llx", NULL},
+ {"CpuAddress", 8, "0x%llx", NULL},
+ {"AddressSize", 8, "0x%llx", NULL},
+};
+
+/** A parser for EArmObjPciInterruptMapInfo.
+*/
+STATIC CONST CM_OBJ_PARSER CmPciInterruptMapInfoParser[] = {
+ {"PciBus", 1, "0x%x", NULL},
+ {"PciDevice", 1, "0x%x", NULL},
+ {"PciInterrupt", 1, "0x%x", NULL},
+ {"IntcInterrupt", sizeof (CM_ARM_GENERIC_INTERRUPT),
+ NULL, NULL, CmArmGenericInterruptParser,
+ ARRAY_SIZE (CmArmGenericInterruptParser)},
+};
+
/** A parser for Arm namespace objects.
*/
STATIC CONST CM_OBJ_PARSER_ARRAY ArmNamespaceObjectParser[] = {
@@ -475,6 +497,10 @@ STATIC CONST CM_OBJ_PARSER_ARRAY ArmNamespaceObjectParser[] = {
ARRAY_SIZE (CmArmCmn600InfoParser)},
{"EArmObjLpiInfo", CmArmLpiInfoParser,
ARRAY_SIZE (CmArmLpiInfoParser)},
+ {"EArmObjPciAddressMapInfo", CmArmPciAddressMapInfoParser,
+ ARRAY_SIZE (CmArmPciAddressMapInfoParser)},
+ {"EArmObjPciInterruptMapInfo", CmPciInterruptMapInfoParser,
+ ARRAY_SIZE (CmPciInterruptMapInfoParser)},
{"EArmObjMax", NULL, 0},
};
--
2.17.1
^ permalink raw reply related [flat|nested] 8+ messages in thread* [PATCH v2 7/7] DynamicTablesPkg: SSDT Pci express generator
2021-10-11 16:45 [PATCH v2 0/7] Create a SSDT PCIe generator PierreGondois
` (5 preceding siblings ...)
2021-10-11 16:45 ` [PATCH v2 6/7] DynamicTablesPkg: Add Pci related objects PierreGondois
@ 2021-10-11 16:45 ` PierreGondois
6 siblings, 0 replies; 8+ messages in thread
From: PierreGondois @ 2021-10-11 16:45 UTC (permalink / raw)
To: devel, Sami Mujawar, Alexei Fedorov
From: Pierre Gondois <Pierre.Gondois@arm.com>
This generator allows to generate a SSDT table describing
a Pci express Bus. It uses the following CmObj:
- EArmObjCmRef
- EArmObjPciConfigSpaceInfo
- EArmObjPciAddressMapInfo
- EArmObjPciInterruptMapInfo
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3682
To: Sami Mujawar <sami.mujawar@arm.com>
To: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
---
Notes:
v2:
- Various error handling/typo/comments modifications. [Sami]
- Use the Oem information provided by the configuration
manager. [Sami]
- Remove generation of _SRS and _PRS objects. [Sami]
- An explanation of the meaning of SS in PCI_SS_...
is given, but this matchs bits in a specification and
not hard accronym. [Sami]
- Modify code generation to generate LNKx devices in
increasing order and before the _PRT object. [Pierre]
DynamicTablesPkg/DynamicTables.dsc.inc | 2 +
DynamicTablesPkg/Include/AcpiTableGenerator.h | 5 +
.../AcpiSsdtPcieLibArm/SsdtPcieGenerator.c | 1448 +++++++++++++++++
.../AcpiSsdtPcieLibArm/SsdtPcieGenerator.h | 138 ++
.../Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf | 32 +
.../SsdtPcieOscTemplate.asl | 80 +
6 files changed, 1705 insertions(+)
create mode 100644 DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
create mode 100644 DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h
create mode 100644 DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf
create mode 100644 DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieOscTemplate.asl
diff --git a/DynamicTablesPkg/DynamicTables.dsc.inc b/DynamicTablesPkg/DynamicTables.dsc.inc
index 292215c39456..60bcf4b199e8 100644
--- a/DynamicTablesPkg/DynamicTables.dsc.inc
+++ b/DynamicTablesPkg/DynamicTables.dsc.inc
@@ -39,6 +39,7 @@ [Components.common]
# AML Codegen
DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyLibArm.inf
+ DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf
#
# Dynamic Table Factory Dxe
@@ -62,6 +63,7 @@ [Components.common]
# AML Codegen
NULL|DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyLibArm.inf
+ NULL|DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf
}
#
diff --git a/DynamicTablesPkg/Include/AcpiTableGenerator.h b/DynamicTablesPkg/Include/AcpiTableGenerator.h
index 45c808ba740d..58ec941f2a35 100644
--- a/DynamicTablesPkg/Include/AcpiTableGenerator.h
+++ b/DynamicTablesPkg/Include/AcpiTableGenerator.h
@@ -67,6 +67,10 @@ The Dynamic Tables Framework implements the following ACPI table generators:
The SSDT Cpu-Topology generator collates the cpu and LPI
information from the Configuration Manager and generates a
SSDT table describing the CPU hierarchy.
+ - SSDT Pci-Express:
+ The SSDT Pci Express generator collates the Pci Express
+ information from the Configuration Manager and generates a
+ SSDT table describing a Pci Express bus.
*/
/** The ACPI_TABLE_GENERATOR_ID type describes ACPI table generator ID.
@@ -93,6 +97,7 @@ typedef enum StdAcpiTableId {
EStdAcpiTableIdSsdtSerialPort, ///< SSDT Serial-Port Generator
EStdAcpiTableIdSsdtCmn600, ///< SSDT Cmn-600 Generator
EStdAcpiTableIdSsdtCpuTopology, ///< SSDT Cpu Topology
+ EStdAcpiTableIdSsdtPciExpress, ///< SSDT Pci Express Generator
EStdAcpiTableIdMax
} ESTD_ACPI_TABLE_ID;
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
new file mode 100644
index 000000000000..3cbe78fc4335
--- /dev/null
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.c
@@ -0,0 +1,1448 @@
+/** @file
+ SSDT Pcie Table Generator.
+
+ Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Reference(s):
+ - PCI Firmware Specification - Revision 3.0
+ - ACPI 6.4 specification:
+ - s6.2.13 "_PRT (PCI Routing Table)"
+ - s6.1.1 "_ADR (Address)"
+ - linux kernel code
+ - Arm Base Boot Requirements v1.0
+**/
+
+#include <Library/AcpiLib.h>
+#include <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Protocol/AcpiTable.h>
+
+// Module specific include files.
+#include <AcpiTableGenerator.h>
+#include <ConfigurationManagerObject.h>
+#include <ConfigurationManagerHelper.h>
+#include <Library/AcpiHelperLib.h>
+#include <Library/TableHelperLib.h>
+#include <Library/AmlLib/AmlLib.h>
+#include <Protocol/ConfigurationManagerProtocol.h>
+
+#include "SsdtPcieGenerator.h"
+
+/** ARM standard SSDT Pcie Table Generator.
+
+Requirements:
+ The following Configuration Manager Object(s) are required by
+ this Generator:
+ - EArmObjCmRef
+ - EArmObjPciConfigSpaceInfo
+ - EArmObjPciAddressMapInfo
+ - EArmObjPciInterruptMapInfo
+*/
+
+/** This macro expands to a function that retrieves the cross-CM-object-
+ reference information from the Configuration Manager.
+*/
+GET_OBJECT_LIST (
+ EObjNameSpaceArm,
+ EArmObjCmRef,
+ CM_ARM_OBJ_REF
+ );
+
+/** This macro expands to a function that retrieves the Pci
+ Configuration Space Information from the Configuration Manager.
+*/
+GET_OBJECT_LIST (
+ EObjNameSpaceArm,
+ EArmObjPciConfigSpaceInfo,
+ CM_ARM_PCI_CONFIG_SPACE_INFO
+ );
+
+/** This macro expands to a function that retrieves the Pci
+ Address Mapping Information from the Configuration Manager.
+*/
+GET_OBJECT_LIST (
+ EObjNameSpaceArm,
+ EArmObjPciAddressMapInfo,
+ CM_ARM_PCI_ADDRESS_MAP_INFO
+ );
+
+/** This macro expands to a function that retrieves the Pci
+ Interrupt Mapping Information from the Configuration Manager.
+*/
+GET_OBJECT_LIST (
+ EObjNameSpaceArm,
+ EArmObjPciInterruptMapInfo,
+ CM_ARM_PCI_INTERRUPT_MAP_INFO
+ );
+
+/** Initialize the MappingTable.
+
+ @param [in] MappingTable The mapping table structure.
+ @param [in] Count Number of entries to allocate in the
+ MappingTable.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+MappingTableInitialize (
+ IN MAPPING_TABLE * MappingTable,
+ IN UINT32 Count
+ )
+{
+ UINT32 * Table;
+
+ if ((MappingTable == NULL) ||
+ (Count == 0)) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Table = AllocateZeroPool (sizeof (*Table) * Count);
+ if (Table == NULL) {
+ ASSERT (0);
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ MappingTable->Table = Table;
+ MappingTable->LastIndex = 0;
+ MappingTable->MaxIndex = Count;
+
+ return EFI_SUCCESS;
+}
+
+/** Free the MappingTable.
+
+ @param [in, out] MappingTable The mapping table structure.
+**/
+STATIC
+VOID
+EFIAPI
+MappingTableFree (
+ IN OUT MAPPING_TABLE * MappingTable
+ )
+{
+ ASSERT (MappingTable != NULL);
+ ASSERT (MappingTable->Table != NULL);
+
+ if (MappingTable->Table != NULL) {
+ FreePool (MappingTable->Table);
+ }
+}
+
+/** Add a new entry to the MappingTable and return its index.
+
+ If an entry with [Integer] is already available in the table,
+ return its index without adding a new entry.
+
+ @param [in] MappingTable The mapping table structure.
+ @param [in] Integer New Integer entry to add.
+
+ @retval The index of the Integer entry in the MappingTable.
+**/
+STATIC
+UINT32
+EFIAPI
+MappingTableAdd (
+ IN MAPPING_TABLE * MappingTable,
+ IN UINT32 Integer
+ )
+{
+ UINT32 * Table;
+ UINT32 Index;
+ UINT32 LastIndex;
+
+ ASSERT (MappingTable != NULL);
+ ASSERT (MappingTable->Table != NULL);
+
+ Table = MappingTable->Table;
+ LastIndex = MappingTable->LastIndex;
+
+ // Search if there is already an entry with this Integer.
+ for (Index = 0; Index < LastIndex; Index++) {
+ if (Table[Index] == Integer) {
+ return Index;
+ }
+ }
+
+ ASSERT (LastIndex < MappingTable->MaxIndex);
+
+ // If no, create a new entry.
+ Table[LastIndex] = Integer;
+
+ return MappingTable->LastIndex++;
+}
+
+/** Generate required Pci device information.
+
+ ASL code:
+ Name (_UID, <Uid>) // Uid of the Pci device
+ Name (_HID, EISAID ("PNP0A08")) // PCI Express Root Bridge
+ Name (_CID, EISAID ("PNP0A03")) // Compatible PCI Root Bridge
+ Name (_SEG, <Pci segment group>) // PCI Segment Group number
+ Name (_BBN, <Bus number>) // PCI Base Bus Number
+ Name (_CCA, 1) // Initially mark the PCI coherent
+
+ @param [in] PciInfo Pci device information.
+ @param [in] Uid Unique Id of the Pci device.
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GeneratePciDeviceInfo (
+ IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo,
+ IN UINT32 Uid,
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ UINT32 EisaId;
+
+ ASSERT (PciInfo != NULL);
+ ASSERT (PciNode != NULL);
+
+ // ASL: Name (_UID, <Uid>)
+ Status = AmlCodeGenNameInteger ("_UID", Uid, PciNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_HID, EISAID ("PNP0A08"))
+ Status = AmlGetEisaIdFromString ("PNP0A08", &EisaId);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ Status = AmlCodeGenNameInteger ("_HID", EisaId, PciNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_CID, EISAID ("PNP0A03"))
+ Status = AmlGetEisaIdFromString ("PNP0A03", &EisaId);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ Status = AmlCodeGenNameInteger ("_CID", EisaId, PciNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_SEG, <Pci segment group>)
+ Status = AmlCodeGenNameInteger (
+ "_SEG",
+ PciInfo->PciSegmentGroupNumber,
+ PciNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_BBN, <Bus number>)
+ Status = AmlCodeGenNameInteger (
+ "_BBN",
+ PciInfo->StartBusNumber,
+ PciNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_CCA, 1)
+ // Must be aligned with the IORT CCA property in
+ // "Table 14 Memory access properties"
+ Status = AmlCodeGenNameInteger ("_CCA", 1, PciNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ }
+ return Status;
+}
+
+/** Generate a Link device.
+
+ The Link device is added at the beginning of the ASL Pci device definition.
+
+ Each Link device represents a Pci legacy interrupt (INTA-...-INTD).
+
+ ASL code:
+ Device (<Link Name>) {
+ Name (_UID, <Uid>])
+ Name (_HID, EISAID ("PNP0C0F"))
+ Name (CRS0, ResourceTemplate () {
+ Interrupt (ResourceProducer, Level, ActiveHigh, Exclusive) { <Irq>] }
+ })
+ Method (_CRS, 0) {
+ Return CRS0
+ })
+ Method (_DIS) { }
+ }
+
+ The list of objects to define is available at:
+ PCI Firmware Specification - Revision 3.3,
+ s3.5. "Device State at Firmware/Operating System Handoff"
+
+ The _CRS and _SRS are not supported, cf Arm Base Boot Requirements v1.0:
+ "The _PRS (Possible Resource Settings) and _SRS (Set Resource Settings)
+ are not supported."
+
+ @param [in] Irq Interrupt controller interrupt.
+ @param [in] IrqFlags Interrupt flags.
+ @param [in] LinkIndex Legacy Pci interrupt index.
+ Must be between 0-INTA and 3-INTD.
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GenerateLinkDevice (
+ IN UINT32 Irq,
+ IN UINT32 IrqFlags,
+ IN UINT32 LinkIndex,
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ CHAR8 AslName[AML_NAME_SEG_SIZE + 1];
+ AML_OBJECT_NODE_HANDLE LinkNode;
+ AML_OBJECT_NODE_HANDLE CrsNode;
+ UINT32 EisaId;
+
+ ASSERT (LinkIndex < 4);
+ ASSERT (PciNode != NULL);
+
+ CopyMem (AslName, "LNKx", AML_NAME_SEG_SIZE + 1);
+ AslName[AML_NAME_SEG_SIZE - 1] = 'A' + LinkIndex;
+
+ // ASL: Device (LNKx) {}
+ Status = AmlCodeGenDevice (AslName, NULL, &LinkNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Status = AmlAttachNode (PciNode, LinkNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ // Failed to add.
+ AmlDeleteTree ((AML_NODE_HANDLE)LinkNode);
+ return Status;
+ }
+
+ // ASL: Name (_UID, <Uid>)
+ Status = AmlCodeGenNameInteger ("_UID", LinkIndex, LinkNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL: Name (_HID, EISAID ("PNP0C0F"))
+ Status = AmlGetEisaIdFromString ("PNP0C0F", &EisaId);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ Status = AmlCodeGenNameInteger ("_HID", EisaId, LinkNode, NULL);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL:
+ // Name (CRS0, ResourceTemplate () {
+ // Interrupt (ResourceProducer, Level, ActiveHigh, Exclusive) { <Irq> }
+ // })
+ Status = AmlCodeGenNameResourceTemplate ("CRS0", LinkNode, &CrsNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ Status = AmlCodeGenRdInterrupt (
+ FALSE,
+ (IrqFlags & BIT0) != 0,
+ (IrqFlags & BIT1) != 0,
+ FALSE,
+ &Irq,
+ 1,
+ CrsNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL:
+ // Method (_CRS, 0) {
+ // Return (CRS0)
+ // }
+ Status = AmlCodeGenMethodRetNameString (
+ "_CRS",
+ "CRS0",
+ 0,
+ FALSE,
+ 0,
+ LinkNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL:Method (_DIS, 1) {}
+ // Not possible to disable interrupts.
+ Status = AmlCodeGenMethodRetNameString (
+ "_DIS",
+ NULL,
+ 0,
+ FALSE,
+ 0,
+ LinkNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // _STA:
+ // ACPI 6.4, s6.3.7 "_STA (Device Status)":
+ // If a device object describes a device that is not on an enumerable bus
+ // and the device object does not have an _STA object, then OSPM assumes
+ // that the device is present, enabled, shown in the UI, and functioning.
+
+ // _MAT:
+ // Not supported. Mainly used for processors.
+
+ return Status;
+}
+
+/** Generate Pci slots devices.
+
+ PCI Firmware Specification - Revision 3.3,
+ s4.8 "Generic ACPI PCI Slot Description" requests to describe the PCI slot
+ used. It should be possible to enumerate them, but this is additional
+ information.
+
+ @param [in] MappingTable The mapping table structure.
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS Success.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GeneratePciSlots (
+ IN CONST MAPPING_TABLE * MappingTable,
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Index;
+ UINT32 LastIndex;
+ UINT32 DeviceId;
+ CHAR8 AslName[AML_NAME_SEG_SIZE + 1];
+ AML_OBJECT_NODE_HANDLE DeviceNode;
+
+ ASSERT (MappingTable != NULL);
+ ASSERT (PciNode != NULL);
+
+ // Generic device name is "Dxx".
+ CopyMem (AslName, "Dxx_", AML_NAME_SEG_SIZE + 1);
+
+ LastIndex = MappingTable->LastIndex;
+
+ // There are at most 32 devices on a Pci bus.
+ if (LastIndex >= 32) {
+ ASSERT (0);
+ return EFI_INVALID_PARAMETER;
+ }
+
+ for (Index = 0; Index < LastIndex; Index++) {
+ DeviceId = MappingTable->Table[Index];
+ AslName[AML_NAME_SEG_SIZE - 3] = AsciiFromHex (DeviceId & 0xF);
+ AslName[AML_NAME_SEG_SIZE - 2] = AsciiFromHex ((DeviceId >> 4) & 0xF);
+
+ // ASL:
+ // Device (Dxx) {
+ // Name (_ADR, <address value>)
+ // }
+ Status = AmlCodeGenDevice (AslName, PciNode, &DeviceNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ /* ACPI 6.4 specification, Table 6.2: "ADR Object Address Encodings"
+ High word-Device #, Low word-Function #. (for example, device 3,
+ function 2 is 0x00030002). To refer to all the functions on a device #,
+ use a function number of FFFF).
+ */
+ Status = AmlCodeGenNameInteger (
+ "_ADR",
+ (DeviceId << 16) | 0xFFFF,
+ DeviceNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // _SUN object is not generated as we don't know which slot will be used.
+ }
+
+ return Status;
+}
+
+/** Generate a _PRT object (Pci Routing Table) for the Pci device.
+
+ Cf. ACPI 6.4 specification, s6.2.13 "_PRT (PCI Routing Table)"
+
+ @param [in] Generator The SSDT Pci generator.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol interface.
+ @param [in] PciInfo Pci device information.
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GeneratePrt (
+ IN ACPI_PCI_GENERATOR * Generator,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo,
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ INT32 Index;
+ UINT32 IrqTableIndex;
+ AML_OBJECT_NODE_HANDLE PrtNode;
+ CHAR8 AslName[AML_NAME_SEG_SIZE + 1];
+ CM_ARM_OBJ_REF * RefInfo;
+ UINT32 RefCount;
+ CM_ARM_PCI_INTERRUPT_MAP_INFO * IrqMapInfo;
+ UINT32 IrqFlags;
+ UINT32 PrevIrqFlags;
+
+ ASSERT (Generator != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (PciInfo != NULL);
+ ASSERT (PciNode != NULL);
+
+ PrtNode = NULL;
+
+ // Get the array of CM_ARM_OBJ_REF referencing the
+ // CM_ARM_PCI_INTERRUPT_MAP_INFO objects.
+ Status = GetEArmObjCmRef (
+ CfgMgrProtocol,
+ PciInfo->InterruptMapToken,
+ &RefInfo,
+ &RefCount
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Initialized IrqTable.
+ Status = MappingTableInitialize (&Generator->IrqTable, RefCount);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Initialized DeviceTable.
+ Status = MappingTableInitialize (&Generator->DeviceTable, RefCount);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler0;
+ }
+
+ // ASL: Name (_PRT, Package () {})
+ Status = AmlCodeGenNamePackage ("_PRT", NULL, &PrtNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+
+ CopyMem (AslName, "LNKx", AML_NAME_SEG_SIZE + 1);
+
+ for (Index = 0; Index < RefCount; Index++) {
+ // Get CM_ARM_PCI_INTERRUPT_MAP_INFO structures one by one.
+ Status = GetEArmObjPciInterruptMapInfo (
+ CfgMgrProtocol,
+ RefInfo[Index].ReferenceToken,
+ &IrqMapInfo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+
+ // Add the interrupt in the IrqTable and get the link name.
+ IrqTableIndex = MappingTableAdd (
+ &Generator->IrqTable,
+ IrqMapInfo->IntcInterrupt.Interrupt
+ );
+ if (IrqTableIndex >= MAX_PCI_LEGACY_INTERRUPT) {
+ ASSERT (0);
+ Status = EFI_INVALID_PARAMETER;
+ goto exit_handler;
+ }
+
+ AslName[AML_NAME_SEG_SIZE - 1] = 'A' + IrqTableIndex;
+
+ // Check that the interrupts flags are identical for all interrupts.
+ PrevIrqFlags = IrqFlags;
+ IrqFlags = IrqMapInfo->IntcInterrupt.Flags;
+ if ((Index > 0) && (PrevIrqFlags != IrqFlags)) {
+ ASSERT (0);
+ Status = EFI_INVALID_PARAMETER;
+ goto exit_handler;
+ }
+
+ // Add the device to the DeviceTable.
+ MappingTableAdd (&Generator->DeviceTable, IrqMapInfo->PciDevice);
+
+ /* Add a _PRT entry.
+ ASL
+ Name (_PRT, Package () {
+ <OldPrtEntries>,
+ <NewPrtEntry>
+ })
+
+ Address is set as:
+ ACPI 6.4 specification, Table 6.2: "ADR Object Address Encodings"
+ High word-Device #, Low word-Function #. (for example, device 3,
+ function 2 is 0x00030002). To refer to all the functions on a device #,
+ use a function number of FFFF).
+ */
+ Status = AmlAddPrtEntry (
+ (IrqMapInfo->PciDevice << 16) | 0xFFFF,
+ IrqMapInfo->PciInterrupt,
+ AslName,
+ 0,
+ PrtNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+ } // for
+
+ // Generate the LNKx devices now that we know all the interrupts used.
+ for (Index = 0; Index < Generator->IrqTable.LastIndex; Index++) {
+ Status = GenerateLinkDevice (
+ Generator->IrqTable.Table[Index],
+ IrqFlags,
+ Index,
+ PciNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+ } // for
+
+ // Attach the _PRT entry now, after the LNKx devices.
+ Status = AmlAttachNode (PciNode, PrtNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+ PrtNode = NULL;
+
+ // Generate the Pci slots once all the device have been added.
+ Status = GeneratePciSlots (&Generator->DeviceTable, PciNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+
+exit_handler:
+ MappingTableFree (&Generator->DeviceTable);
+exit_handler0:
+ MappingTableFree (&Generator->IrqTable);
+ if (PrtNode != NULL) {
+ AmlDeleteTree (PrtNode);
+ }
+
+ return Status;
+}
+
+/** Generate a _CRS method for the Pci device.
+
+ @param [in] Generator The SSDT Pci generator.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol interface.
+ @param [in] PciInfo Pci device information.
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GeneratePciCrs (
+ IN ACPI_PCI_GENERATOR * Generator,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo,
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ BOOLEAN Translation;
+ UINT32 Index;
+ CM_ARM_OBJ_REF * RefInfo;
+ UINT32 RefCount;
+ CM_ARM_PCI_ADDRESS_MAP_INFO * AddrMapInfo;
+ AML_OBJECT_NODE_HANDLE CrsNode;
+
+ ASSERT (Generator != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (PciInfo != NULL);
+ ASSERT (PciNode != NULL);
+
+ // ASL: Name (_CRS, ResourceTemplate () {})
+ Status = AmlCodeGenNameResourceTemplate ("_CRS", PciNode, &CrsNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // ASL:
+ // WordBusNumber ( // Bus numbers assigned to this root
+ // ResourceProducer, MinFixed, MaxFixed, PosDecode,
+ // 0, // AddressGranularity
+ // <Start>, // AddressMinimum - Minimum Bus Number
+ // <End>, // AddressMaximum - Maximum Bus Number
+ // 0, // AddressTranslation - Set to 0
+ // <End> - <Start> + 1 // RangeLength - Number of Busses
+ // )
+ Status = AmlCodeGenRdWordBusNumber (
+ FALSE,
+ TRUE,
+ TRUE,
+ TRUE,
+ 0,
+ PciInfo->StartBusNumber,
+ PciInfo->EndBusNumber,
+ 0,
+ PciInfo->EndBusNumber - PciInfo->StartBusNumber + 1,
+ 0,
+ NULL,
+ CrsNode,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Get the array of CM_ARM_OBJ_REF referencing the
+ // CM_ARM_PCI_ADDRESS_MAP_INFO objects.
+ Status = GetEArmObjCmRef (
+ CfgMgrProtocol,
+ PciInfo->AddressMapToken,
+ &RefInfo,
+ &RefCount
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ for (Index = 0; Index < RefCount; Index++) {
+ // Get CM_ARM_PCI_ADDRESS_MAP_INFO structures one by one.
+ Status = GetEArmObjPciAddressMapInfo (
+ CfgMgrProtocol,
+ RefInfo[Index].ReferenceToken,
+ &AddrMapInfo,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Translation = (AddrMapInfo->CpuAddress != AddrMapInfo->PciAddress);
+
+ switch (AddrMapInfo->SpaceCode) {
+ case PCI_SS_IO:
+ Status = AmlCodeGenRdDWordIo (
+ FALSE,
+ TRUE,
+ TRUE,
+ TRUE,
+ 3,
+ 0,
+ AddrMapInfo->PciAddress,
+ AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,
+ Translation ? AddrMapInfo->CpuAddress : 0,
+ AddrMapInfo->AddressSize,
+ 0,
+ NULL,
+ TRUE,
+ FALSE,
+ CrsNode,
+ NULL
+ );
+ break;
+
+ case PCI_SS_M32:
+ Status = AmlCodeGenRdDWordMemory (
+ FALSE,
+ TRUE,
+ TRUE,
+ TRUE,
+ TRUE,
+ TRUE,
+ 0,
+ AddrMapInfo->PciAddress,
+ AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,
+ Translation ? AddrMapInfo->CpuAddress : 0,
+ AddrMapInfo->AddressSize,
+ 0,
+ NULL,
+ 0,
+ TRUE,
+ CrsNode,
+ NULL
+ );
+ break;
+
+ case PCI_SS_M64:
+ Status = AmlCodeGenRdQWordMemory (
+ FALSE,
+ TRUE,
+ TRUE,
+ TRUE,
+ TRUE,
+ TRUE,
+ 0,
+ AddrMapInfo->PciAddress,
+ AddrMapInfo->PciAddress + AddrMapInfo->AddressSize - 1,
+ Translation ? AddrMapInfo->CpuAddress : 0,
+ AddrMapInfo->AddressSize,
+ 0,
+ NULL,
+ 0,
+ TRUE,
+ CrsNode,
+ NULL
+ );
+ break;
+
+ default:
+ Status = EFI_INVALID_PARAMETER;
+ } // switch
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ } // for
+ return Status;
+}
+
+/** Add an _OSC template method to the PciNode.
+
+ The _OSC method is provided as an AML blob. The blob is
+ parsed and attached at the end of the PciNode list of variable elements.
+
+ @param [in, out] PciNode Pci node to amend.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+AddOscMethod (
+ IN OUT AML_OBJECT_NODE_HANDLE PciNode
+ )
+{
+ EFI_STATUS Status;
+ EFI_STATUS Status1;
+ EFI_ACPI_DESCRIPTION_HEADER * SsdtPcieOscTemplate;
+ AML_ROOT_NODE_HANDLE OscTemplateRoot;
+ AML_OBJECT_NODE_HANDLE OscNode;
+
+ ASSERT (PciNode != NULL);
+
+ // Parse the Ssdt Pci Osc Template.
+ SsdtPcieOscTemplate = (EFI_ACPI_DESCRIPTION_HEADER*)
+ ssdtpcieosctemplate_aml_code;
+
+ OscNode = NULL;
+ OscTemplateRoot = NULL;
+ Status = AmlParseDefinitionBlock (
+ SsdtPcieOscTemplate,
+ &OscTemplateRoot
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI-OSC: Failed to parse SSDT PCI OSC Template."
+ " Status = %r\n",
+ Status
+ ));
+ return Status;
+ }
+
+ Status = AmlFindNode (OscTemplateRoot, "\\_OSC", &OscNode);
+ if (EFI_ERROR (Status)) {
+ goto error_handler;
+ }
+
+ Status = AmlDetachNode (OscNode);
+ if (EFI_ERROR (Status)) {
+ goto error_handler;
+ }
+
+ Status = AmlAttachNode (PciNode, OscNode);
+ if (EFI_ERROR (Status)) {
+ // Free the detached node.
+ AmlDeleteTree (OscNode);
+ goto error_handler;
+ }
+
+error_handler:
+ // Cleanup
+ Status1 = AmlDeleteTree (OscTemplateRoot);
+ if (EFI_ERROR (Status1)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI-OSC: Failed to cleanup AML tree."
+ " Status = %r\n",
+ Status1
+ ));
+ // If Status was success but we failed to delete the AML Tree
+ // return Status1 else return the original error code, i.e. Status.
+ if (!EFI_ERROR (Status)) {
+ return Status1;
+ }
+ }
+
+ return Status;
+}
+
+/** Generate a Pci device.
+
+ @param [in] Generator The SSDT Pci generator.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol interface.
+ @param [in] PciInfo Pci device information.
+ @param [in] Uid Unique Id of the Pci device.
+ @param [in, out] RootNode RootNode of the AML tree to populate.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+GeneratePciDevice (
+ IN ACPI_PCI_GENERATOR * Generator,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo,
+ IN UINT32 Uid,
+ IN OUT AML_ROOT_NODE_HANDLE * RootNode
+ )
+{
+ EFI_STATUS Status;
+
+ CHAR8 AslName[AML_NAME_SEG_SIZE + 1];
+ AML_OBJECT_NODE_HANDLE ScopeNode;
+ AML_OBJECT_NODE_HANDLE PciNode;
+
+ ASSERT (Generator != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (PciInfo != NULL);
+ ASSERT (RootNode != NULL);
+
+ PciNode = NULL;
+
+ // ASL: Scope (\_SB) {}
+ Status = AmlCodeGenScope (SB_SCOPE, RootNode, &ScopeNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Write the name of the PCI device.
+ CopyMem (AslName, "PCIx", AML_NAME_SEG_SIZE + 1);
+ AslName[AML_NAME_SEG_SIZE - 1] = AsciiFromHex (Uid);
+
+ // ASL: Device (PCIx) {}
+ Status = AmlCodeGenDevice (AslName, ScopeNode, &PciNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Populate the PCIx node with some Id values.
+ Status = GeneratePciDeviceInfo (PciInfo, Uid, PciNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Generate the Pci Routing Table (_PRT).
+ if (PciInfo->InterruptMapToken != CM_NULL_TOKEN) {
+ Status = GeneratePrt (
+ Generator,
+ CfgMgrProtocol,
+ PciInfo,
+ PciNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+ }
+
+ // Generate the _CRS method.
+ Status = GeneratePciCrs (Generator, CfgMgrProtocol, PciInfo, PciNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ // Add the template _OSC method.
+ Status = AddOscMethod (PciNode);
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ }
+
+ return Status;
+}
+
+/** Build an Ssdt table describing a Pci device.
+
+ @param [in] Generator The SSDT Pci generator.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol interface.
+ @param [in] AcpiTableInfo Pointer to the ACPI table information.
+ @param [in] PciInfo Pci device information.
+ @param [in] Uid Unique Id of the Pci device.
+ @param [out] Table If success, contains the created SSDT table.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+BuildSsdtPciTable (
+ IN ACPI_PCI_GENERATOR * Generator,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
+ IN CONST CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo,
+ IN UINT32 Uid,
+ OUT EFI_ACPI_DESCRIPTION_HEADER ** Table
+ )
+{
+ EFI_STATUS Status;
+ EFI_STATUS Status1;
+ AML_ROOT_NODE_HANDLE RootNode;
+
+ ASSERT (Generator != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (PciInfo != NULL);
+ ASSERT (Table != NULL);
+
+ // Create a new Ssdt table.
+ Status = AddSsdtAcpiHeader (
+ CfgMgrProtocol,
+ &Generator->Header,
+ AcpiTableInfo,
+ &RootNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ Status = GeneratePciDevice (
+ Generator,
+ CfgMgrProtocol,
+ PciInfo,
+ Uid,
+ RootNode
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ goto exit_handler;
+ }
+
+ // Serialize the tree.
+ Status = AmlSerializeDefinitionBlock (
+ RootNode,
+ Table
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Failed to Serialize SSDT Table Data."
+ " Status = %r\n",
+ Status
+ ));
+ }
+
+exit_handler:
+ // Cleanup
+ Status1 = AmlDeleteTree (RootNode);
+ if (EFI_ERROR (Status1)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Failed to cleanup AML tree."
+ " Status = %r\n",
+ Status1
+ ));
+ // If Status was success but we failed to delete the AML Tree
+ // return Status1 else return the original error code, i.e. Status.
+ if (!EFI_ERROR (Status)) {
+ return Status1;
+ }
+ }
+
+ return Status;
+}
+
+/** Construct SSDT tables describing Pci root complexes.
+
+ This function invokes the Configuration Manager protocol interface
+ to get the required hardware information for generating the ACPI
+ table.
+
+ If this function allocates any resources then they must be freed
+ in the FreeXXXXTableResourcesEx function.
+
+ @param [in] This Pointer to the ACPI table generator.
+ @param [in] AcpiTableInfo Pointer to the ACPI table information.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol interface.
+ @param [out] Table Pointer to a list of generated ACPI table(s).
+ @param [out] TableCount Number of generated ACPI table(s).
+
+ @retval EFI_SUCCESS Table generated successfully.
+ @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
+ Manager is less than the Object size for
+ the requested object.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND Could not find information.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate memory.
+ @retval EFI_UNSUPPORTED Unsupported configuration.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+BuildSsdtPciTableEx (
+ IN CONST ACPI_TABLE_GENERATOR * This,
+ IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ OUT EFI_ACPI_DESCRIPTION_HEADER *** Table,
+ OUT UINTN * CONST TableCount
+ )
+{
+ EFI_STATUS Status;
+ CM_ARM_PCI_CONFIG_SPACE_INFO * PciInfo;
+ UINT32 PciCount;
+ UINTN Index;
+ EFI_ACPI_DESCRIPTION_HEADER ** TableList;
+ ACPI_PCI_GENERATOR * Generator;
+
+ ASSERT (This != NULL);
+ ASSERT (AcpiTableInfo != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (Table != NULL);
+ ASSERT (TableCount != NULL);
+ ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);
+ ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);
+
+ *TableCount = 0;
+ Generator = (ACPI_PCI_GENERATOR*)This;
+
+ Status = GetEArmObjPciConfigSpaceInfo (
+ CfgMgrProtocol,
+ CM_NULL_TOKEN,
+ &PciInfo,
+ &PciCount
+ );
+ if (EFI_ERROR (Status)) {
+ ASSERT (0);
+ return Status;
+ }
+
+ if (PciCount > MAX_PCI_ROOT_COMPLEXES_SUPPORTED) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Too many Pci root complexes: %d."
+ " Maximum Pci root complexes supported = %d.\n",
+ PciCount,
+ MAX_PCI_ROOT_COMPLEXES_SUPPORTED
+ ));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ // Allocate a table to store pointers to the SSDT tables.
+ TableList = (EFI_ACPI_DESCRIPTION_HEADER**)
+ AllocateZeroPool (
+ (sizeof (EFI_ACPI_DESCRIPTION_HEADER*) * PciCount)
+ );
+ if (TableList == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Failed to allocate memory for Table List."
+ " Status = %r\n",
+ Status
+ ));
+ return Status;
+ }
+
+ // Setup the table list early so that appropriate cleanup
+ // can be done in case of failure.
+ *Table = TableList;
+
+ for (Index = 0; Index < PciCount; Index++) {
+ // Build a SSDT table describing the Pci devices.
+ Status = BuildSsdtPciTable (
+ Generator,
+ CfgMgrProtocol,
+ AcpiTableInfo,
+ &PciInfo[Index],
+ Index,
+ &TableList[Index]
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Failed to build associated SSDT table."
+ " Status = %r\n",
+ Status
+ ));
+ goto error_handler;
+ }
+
+ *TableCount += 1;
+ } // for
+
+error_handler:
+ // Note: Table list and Table count have been setup. The
+ // error handler does nothing here as the framework will invoke
+ // FreeSsdtPciTableEx () even on failure.
+ return Status;
+}
+
+/** Free any resources allocated for constructing the tables.
+
+ @param [in] This Pointer to the ACPI table generator.
+ @param [in] AcpiTableInfo Pointer to the ACPI Table Info.
+ @param [in] CfgMgrProtocol Pointer to the Configuration Manager
+ Protocol Interface.
+ @param [in, out] Table Pointer to an array of pointers
+ to ACPI Table(s).
+ @param [in] TableCount Number of ACPI table(s).
+
+ @retval EFI_SUCCESS The resources were freed successfully.
+ @retval EFI_INVALID_PARAMETER The table pointer is NULL or invalid.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+FreeSsdtPciTableEx (
+ IN CONST ACPI_TABLE_GENERATOR * CONST This,
+ IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
+ IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
+ IN OUT EFI_ACPI_DESCRIPTION_HEADER *** CONST Table,
+ IN CONST UINTN TableCount
+ )
+{
+ EFI_ACPI_DESCRIPTION_HEADER ** TableList;
+ UINTN Index;
+
+ ASSERT (This != NULL);
+ ASSERT (AcpiTableInfo != NULL);
+ ASSERT (CfgMgrProtocol != NULL);
+ ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);
+ ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);
+
+ if ((Table == NULL) ||
+ (*Table == NULL) ||
+ (TableCount == 0)) {
+ DEBUG ((DEBUG_ERROR, "ERROR: SSDT-PCI: Invalid Table Pointer\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ TableList = *Table;
+ for (Index = 0; Index < TableCount; Index++) {
+ if ((TableList[Index] != NULL) &&
+ (TableList[Index]->Signature ==
+ EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)) {
+ FreePool (TableList[Index]);
+ } else {
+ DEBUG ((
+ DEBUG_ERROR,
+ "ERROR: SSDT-PCI: Could not free SSDT table at index %d.",
+ Index
+ ));
+ return EFI_INVALID_PARAMETER;
+ }
+ } //for
+
+ // Free the table list.
+ FreePool (*Table);
+
+ return EFI_SUCCESS;
+}
+
+/** This macro defines the SSDT Pci Table Generator revision.
+*/
+#define SSDT_PCI_GENERATOR_REVISION CREATE_REVISION (1, 0)
+
+/** The interface for the SSDT Pci Table Generator.
+*/
+STATIC
+ACPI_PCI_GENERATOR SsdtPcieGenerator = {
+ // ACPI table generator header
+ {
+ // Generator ID
+ CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdSsdtPciExpress),
+ // Generator Description
+ L"ACPI.STD.SSDT.PCI.GENERATOR",
+ // ACPI Table Signature
+ EFI_ACPI_6_3_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
+ // ACPI Table Revision - Unused
+ 0,
+ // Minimum ACPI Table Revision - Unused
+ 0,
+ // Creator ID
+ TABLE_GENERATOR_CREATOR_ID_ARM,
+ // Creator Revision
+ SSDT_PCI_GENERATOR_REVISION,
+ // Build table function. Use the extended version instead.
+ NULL,
+ // Free table function. Use the extended version instead.
+ NULL,
+ // Extended Build table function.
+ BuildSsdtPciTableEx,
+ // Extended free function.
+ FreeSsdtPciTableEx
+ },
+
+ // Private fields are defined from here.
+
+ // IrqTable
+ {
+ // Table
+ NULL,
+ // LastIndex
+ 0,
+ // MaxIndex
+ 0
+ },
+ // DeviceTable
+ {
+ // Table
+ NULL,
+ // LastIndex
+ 0,
+ // MaxIndex
+ 0
+ },
+};
+
+/** Register the Generator with the ACPI Table Factory.
+
+ @param [in] ImageHandle The handle to the image.
+ @param [in] SystemTable Pointer to the System Table.
+
+ @retval EFI_SUCCESS The Generator is registered.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_ALREADY_STARTED The Generator for the Table ID
+ is already registered.
+**/
+EFI_STATUS
+EFIAPI
+AcpiSsdtPcieLibConstructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE * SystemTable
+ )
+{
+ EFI_STATUS Status;
+ Status = RegisterAcpiTableGenerator (&SsdtPcieGenerator.Header);
+ DEBUG ((
+ DEBUG_INFO,
+ "SSDT-PCI: Register Generator. Status = %r\n",
+ Status
+ ));
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
+
+/** Deregister the Generator from the ACPI Table Factory.
+
+ @param [in] ImageHandle The handle to the image.
+ @param [in] SystemTable Pointer to the System Table.
+
+ @retval EFI_SUCCESS The Generator is deregistered.
+ @retval EFI_INVALID_PARAMETER A parameter is invalid.
+ @retval EFI_NOT_FOUND The Generator is not registered.
+**/
+EFI_STATUS
+EFIAPI
+AcpiSsdtPcieLibDestructor (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE * SystemTable
+ )
+{
+ EFI_STATUS Status;
+ Status = DeregisterAcpiTableGenerator (&SsdtPcieGenerator.Header);
+ DEBUG ((
+ DEBUG_INFO,
+ "SSDT-PCI: Deregister Generator. Status = %r\n",
+ Status
+ ));
+ ASSERT_EFI_ERROR (Status);
+ return Status;
+}
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h
new file mode 100644
index 000000000000..d2300a6e4aa3
--- /dev/null
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h
@@ -0,0 +1,138 @@
+/** @file
+ SSDT Pcie Table Generator.
+
+ Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Reference(s):
+ - PCI Firmware Specification - Revision 3.0
+ - ACPI 6.4 specification:
+ - s6.2.13 "_PRT (PCI Routing Table)"
+ - s6.1.1 "_ADR (Address)"
+ - linux kernel code
+ - Arm Base Boot Requirements v1.0
+**/
+
+#ifndef SSDT_PCIE_GENERATOR_H_
+#define SSDT_PCIE_GENERATOR_H_
+
+/** Pci address attributes.
+
+ This can also be denoted as space code, address space or ss.
+*/
+#define PCI_SS_CONFIG 0
+#define PCI_SS_IO 1
+#define PCI_SS_M32 2
+#define PCI_SS_M64 3
+
+/** Maximum Pci root complexes supported by this generator.
+
+ Note: This is not a hard limitation and can be extended if needed.
+ Corresponding changes would be needed to support the Name and
+ UID fields describing the Pci root complexes.
+*/
+#define MAX_PCI_ROOT_COMPLEXES_SUPPORTED 16
+
+/** Maximum number of Pci legacy interrupts.
+
+ Currently 4 for INTA-INTB-INTC-INTD.
+*/
+#define MAX_PCI_LEGACY_INTERRUPT 4
+
+// _SB scope of the AML namespace.
+#define SB_SCOPE "\\_SB_"
+
+/** C array containing the compiled AML template.
+ This symbol is defined in the auto generated C file
+ containing the AML bytecode array.
+*/
+extern CHAR8 ssdtpcieosctemplate_aml_code[];
+
+#pragma pack(1)
+
+/** Structure used to map integer to an index.
+*/
+typedef struct MappingTable {
+ /// Mapping table.
+ /// Contains the Index <-> integer mapping
+ UINT32 * Table;
+
+ /// Last used index of the Table.
+ /// Bound by MaxIndex.
+ UINT32 LastIndex;
+
+ /// Number of entries in the Table.
+ UINT32 MaxIndex;
+} MAPPING_TABLE;
+
+/** A structure holding the Pcie generator and additional private data.
+*/
+typedef struct AcpiPcieGenerator {
+ /// ACPI Table generator header
+ ACPI_TABLE_GENERATOR Header;
+
+ // Private fields are defined from here.
+
+ /** A structure used to handle the Address and Interrupt Map referencing.
+
+ A CM_ARM_PCI_CONFIG_SPACE_INFO structure references two CM_ARM_OBJ_REF:
+ - one for the address mapping, referencing
+ CM_ARM_PCI_ADDRESS_MAP_INFO structures.
+ - one for the interrupt mapping, referencing
+ CM_ARM_PCI_INTERRUPT_MAP_INFO structures.
+
+ Example (for the interrupt mapping):
+ (Pci0)
+ CM_ARM_PCI_CONFIG_SPACE_INFO
+ |
+ +----------------------------------------
+ | |
+ v v
+ CM_ARM_OBJ_REF CM_ARM_OBJ_REF
+ (List of references to (List of references to
+ address mappings) interrupt mappings)
+ | |
+ v v
+ CM_ARM_PCI_INTERRUPT_MAP_INFO[0..N] CM_ARM_PCI_INTERRUPT_MAP_INFO[0..M]
+ (A list of address mappings) (A list of interrupt mappings)
+
+ The CM_ARM_PCI_INTERRUPT_MAP_INFO objects cannot be handled individually.
+ Device's Pci legacy interrupts that are mapped to the same CPU interrupt
+ are grouped under a Link device.
+ For instance, the following mapping:
+ - [INTA of device 0] mapped on [GIC irq 168]
+ - [INTB of device 1] mapped on [GIC irq 168]
+ will be represented in an SSDT table as:
+ - [INTA of device 0] mapped on [Link device A]
+ - [INTB of device 1] mapped on [Link device A]
+ - [Link device A] mapped on [GIC irq 168]
+
+ Counting the number of Cpu interrupts used and grouping them in Link
+ devices is done through this IRQ_TABLE.
+
+ ASL code:
+ Scope (_SB) {
+ Device (LNKA) {
+ [...]
+ Name (_PRS, ResourceTemplate () {
+ Interrupt (ResourceProducer, Level, ActiveHigh, Exclusive) { 168 }
+ })
+ }
+
+ Device (PCI0) {
+ Name (_PRT, Package () {
+ Package (0x0FFFF, 0, LNKA, 0) // INTA of device 0 <-> LNKA
+ Package (0x1FFFF, 1, LNKA, 0) // INTB of device 1 <-> LNKA
+ })
+ }
+ }
+ */
+ MAPPING_TABLE IrqTable;
+
+ /// Table to map: Index <-> Pci device
+ MAPPING_TABLE DeviceTable;
+} ACPI_PCI_GENERATOR;
+
+#pragma pack()
+
+#endif // SSDT_PCIE_GENERATOR_H_
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf
new file mode 100644
index 000000000000..283b5648017c
--- /dev/null
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieLibArm.inf
@@ -0,0 +1,32 @@
+## @file
+# Ssdt Serial Port Table Generator
+#
+# Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+
+[Defines]
+ INF_VERSION = 0x0001001B
+ BASE_NAME = SsdtPcieLibArm
+ FILE_GUID = E431D7FD-26BF-4E3D-9064-5B13B0439057
+ VERSION_STRING = 1.0
+ MODULE_TYPE = DXE_DRIVER
+ LIBRARY_CLASS = NULL|DXE_DRIVER
+ CONSTRUCTOR = AcpiSsdtPcieLibConstructor
+ DESTRUCTOR = AcpiSsdtPcieLibDestructor
+
+[Sources]
+ SsdtPcieGenerator.c
+ SsdtPcieGenerator.h
+ SsdtPcieOscTemplate.asl
+
+[Packages]
+ DynamicTablesPkg/DynamicTablesPkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ AcpiHelperLib
+ AmlLib
+ BaseLib
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieOscTemplate.asl b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieOscTemplate.asl
new file mode 100644
index 000000000000..feaf56b53384
--- /dev/null
+++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieOscTemplate.asl
@@ -0,0 +1,80 @@
+/** @file
+ SSDT Pci Osc (Operating System Capabilities)
+
+ Copyright (c) 2021, Arm Limited. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Reference(s):
+ - PCI Firmware Specification - Revision 3.3
+ - ACPI 6.4 specification:
+ - s6.2.13 "_PRT (PCI Routing Table)"
+ - s6.1.1 "_ADR (Address)"
+ - linux kernel code
+**/
+
+DefinitionBlock ("SsdtPciOsc.aml", "SSDT", 2, "ARMLTD", "PCI-OSC", 1) {
+
+ // This table is just a template and is never installed as a table.
+ // Pci devices are dynamically created at runtime as:
+ // ASL:
+ // Device (PCIx) {
+ // ...
+ // }
+ // and the _OSC method available below is appended to the PCIx device as:
+ // ASL:
+ // Device (PCIx) {
+ // ...
+ // Method (_OSC, 4 {
+ // ...
+ // })
+ // }
+ Method (_OSC, 4) {
+ //
+ // OS Control Handoff
+ //
+ Name (SUPP, Zero) // PCI _OSC Support Field value
+ Name (CTRL, Zero) // PCI _OSC Control Field value
+
+ // Create DWord-addressable fields from the Capabilities Buffer
+ CreateDWordField (Arg3, 0, CDW1)
+ CreateDWordField (Arg3, 4, CDW2)
+ CreateDWordField (Arg3, 8, CDW3)
+
+ // Check for proper UUID
+ If (LEqual (Arg0,ToUUID ("33DB4D5B-1FF7-401C-9657-7441C03DD766"))) {
+
+ // Save Capabilities DWord2 & 3
+ Store (CDW2, SUPP)
+ Store (CDW3, CTRL)
+
+ // Only allow native hot plug control if OS supports:
+ // * ASPM
+ // * Clock PM
+ // * MSI/MSI-X
+ If (LNotEqual (And (SUPP, 0x16), 0x16)) {
+ And (CTRL, 0x1E, CTRL) // Mask bit 0 (and undefined bits)
+ }
+
+ // Always allow native PME, AER (no dependencies)
+
+ // Never allow SHPC (no SHPC controller in this system)
+ And (CTRL, 0x1D, CTRL)
+
+ If (LNotEqual (Arg1, One)) { // Unknown revision
+ Or (CDW1, 0x08, CDW1)
+ }
+
+ If (LNotEqual (CDW3, CTRL)) { // Capabilities bits were masked
+ Or (CDW1, 0x10, CDW1)
+ }
+
+ // Update DWORD3 in the buffer
+ Store (CTRL,CDW3)
+ Return (Arg3)
+ } Else {
+ Or (CDW1, 4, CDW1) // Unrecognized UUID
+ Return (Arg3)
+ } // If
+ } // _OSC
+}
--
2.17.1
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