[edk2][PATCH V1 1/1] MdePkg/IndustryStandard: add definitions for MPAM ACPI specification

["Rohit Mathew" <rohit.mathew@arm.com>]

add definitions, macros and types for elements associated with MPAM
ACPI 2.0 specification.

Signed-off-by: Rohit Mathew <rohit.mathew@arm.com>
---
 MdePkg/Include/IndustryStandard/Acpi64.h |   7 +-
 MdePkg/Include/IndustryStandard/Mpam.h   | 229 ++++++++++++++++++++
 2 files changed, 235 insertions(+), 1 deletion(-)

github link:
https://github.com/rohit-arm/edk2/tree/mpam_acpi

diff --git a/MdePkg/Include/IndustryStandard/Acpi64.h b/MdePkg/Include/IndustryStandard/Acpi64.h
index 575ca0430c..2be9525979 100644
--- a/MdePkg/Include/IndustryStandard/Acpi64.h
+++ b/MdePkg/Include/IndustryStandard/Acpi64.h
@@ -2,7 +2,7 @@
   ACPI 6.4 definitions from the ACPI Specification Revision 6.4 Jan, 2021.
 
   Copyright (c) 2017 - 2022, Intel Corporation. All rights reserved.<BR>
-  Copyright (c) 2019 - 2021, ARM Ltd. All rights reserved.<BR>
+  Copyright (c) 2019 - 2023, ARM Limited. All rights reserved.<BR>
 
   SPDX-License-Identifier: BSD-2-Clause-Patent
 **/
@@ -3157,6 +3157,11 @@ typedef struct {
 ///
 #define EFI_ACPI_6_4_XEN_PROJECT_TABLE_SIGNATURE  SIGNATURE_32('X', 'E', 'N', 'V')
 
+///
+/// "MPAM" Memory System Resource Partitioning and Monitoring Table
+///
+#define EFI_ACPI_MEMORY_SYSTEM_RESOURCE_PARTITIONING_AND_MONITORING_TABLE_SIGNATURE  SIGNATURE_32('M', 'P', 'A', 'M')
+
 #pragma pack()
 
 #endif
diff --git a/MdePkg/Include/IndustryStandard/Mpam.h b/MdePkg/Include/IndustryStandard/Mpam.h
new file mode 100644
index 0000000000..8e6e72ea28
--- /dev/null
+++ b/MdePkg/Include/IndustryStandard/Mpam.h
@@ -0,0 +1,229 @@
+/** @file
+  ACPI for Memory System Resource Partitioning and Monitoring 2.0 (MPAM) as
+  specified in ARM spec DEN0065
+
+  Copyright (c) 2023, Arm Limited. All rights reserved.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+  @par Specification Reference:
+   - [1] ACPI for Memory System Resource Partitioning and Monitoring 2.0
+     (https://developer.arm.com/documentation/den0065/latest)
+
+  @par Glossary:
+    - MPAM - Memory System Resource Partitioning And Monitoring
+    - MSC  - Memory System Component
+    - PCC  - Platform Communication Channel
+    - RIS  - Resource Instance Selection
+    - SMMU - Arm System Memory Management Unit
+ **/
+
+#ifndef MPAM_H_
+#define MPAM_H_
+
+#include <IndustryStandard/Acpi.h>
+
+///
+/// MPAM Revision
+///
+#define EFI_ACPI_MEMORY_SYSTEM_RESOURCE_PARTITIONING_AND_MONITORING_TABLE_REVISION  (0x01)
+
+///
+/// MPAM Interrupt mode
+///
+#define EFI_ACPI_MPAM_INTERRUPT_LEVEL_TRIGGERED  (0x0)
+#define EFI_ACPI_MPAM_INTERRUPT_EDGE_TRIGGERED   (0x1)
+
+///
+/// MPAM Interrupt type
+///
+#define EFI_ACPI_MPAM_INTERRUPT_WIRED  (0x0)
+
+///
+/// MPAM Interrupt affinity type
+///
+#define EFI_ACPI_MPAM_PROCESSOR_AFFINITY            (0x0)
+#define EFI_ACPI_MPAM_PROCESSOR_CONTAINER_AFFINITY  (0x1)
+
+///
+/// MPAM MSC affinity valid
+///
+#define EFI_ACPI_MPAM_AFFINITY_NOT_VALID  (0x0)
+#define EFI_ACPI_MPAM_AFFINITY_VALID      (0x1)
+
+///
+/// MPAM Interrupt flag - bit positions
+///
+#define EFI_ACPI_MPAM_INTERRUPT_MODE_POS  (0x0)
+#define EFI_ACPI_MPAM_INTERRUPT_TYPE_POS  (0x1)
+#define EFI_ACPI_MPAM_AFFINITY_TYPE_POS   (0x3)
+#define EFI_ACPI_MPAM_AFFINITY_VALID_POS  (0x4)
+#define EFI_ACPI_MPAM_RESERVED_POS        (0x5)
+
+///
+/// MPAM Location types
+/// as described in document [1], table 11
+///
+#define EFI_ACPI_MPAM_LOCATION_PROCESSOR_CACHE  (0x0)
+#define EFI_ACPI_MPAM_LOCATION_MEMORY           (0x1)
+#define EFI_ACPI_MPAM_LOCATION_SMMU             (0x2)
+#define EFI_ACPI_MPAM_LOCATION_MEMORY_CACHE     (0x3)
+#define EFI_ACPI_MPAM_LOCATION_ACPI_DEVICE      (0x4)
+#define EFI_ACPI_MPAM_LOCATION_INTERCONNECT     (0x5)
+#define EFI_ACPI_MPAM_LOCATION_UNKNOWN          (0xFF)
+
+///
+/// MPAM Interface types
+///
+#define EFI_ACPI_MPAM_INTERFACE_MMIO  (0x0)
+#define EFI_ACPI_MPAM_INTERFACE_PCC   (0x0A)
+
+#pragma pack(1)
+
+///
+/// MPAM MSC generic locator descriptor
+/// as described in document [1], table 12
+///
+typedef struct {
+  UINT64    Descriptor1;
+  UINT32    Descriptor2;
+} EFI_ACPI_MPAM_GENERIC_LOCATOR;
+
+///
+/// MPAM processor cache locator descriptor
+/// as described in document [1], table 13
+///
+typedef struct {
+  UINT64    CacheReference;
+  UINT32    Reserved;
+} EFI_ACPI_MPAM_CACHE_LOCATOR;
+
+///
+/// MPAM memory locator descriptor
+/// as described in document [1], table 14
+///
+typedef struct {
+  UINT64    ProximityDomain;
+  UINT32    Reserved;
+} EFI_ACPI_MPAM_MEMORY_LOCATOR;
+
+///
+/// MPAM SMMU locator descriptor
+/// as described in document [1], table 15
+///
+typedef struct {
+  UINT64    SmmuInterface;
+  UINT32    Reserved;
+} EFI_ACPI_MPAM_SMMU_LOCATOR;
+
+///
+/// MPAM memory-side cache locator descriptor
+/// as described in Document [1], table 16
+///
+typedef struct {
+  UINT8     Reserved[7];
+  UINT8     Level;
+  UINT32    Reference;
+} EFI_ACPI_MPAM_MEMORY_CACHE_LOCATOR;
+
+///
+/// MPAM ACPI device locator descriptor
+/// as described in document [1], table 17
+///
+typedef struct {
+  UINT64    AcpiHardwareId;
+  UINT32    AcpiUniqueId;
+} EFI_ACPI_MPAM_ACPI_LOCATOR;
+
+///
+/// MPAM interconnect locator descriptor
+/// as described in document [1], table 18
+///
+typedef struct {
+  UINT64    InterconnectDescTblOff;
+  UINT32    Reserved;
+} EFI_ACPI_MPAM_INTERCONNECT_LOCATOR;
+
+///
+/// MPAM interconnect descriptor
+/// as described in document [1], table 19
+///
+typedef struct {
+  UINT32    SourceID;
+  UINT32    DestinationID;
+  UINT8     LinkType;
+  UINT8     Reserved[3];
+} EFI_ACPI_MPAM_INTERCONNECT_DESCRIPTOR;
+
+///
+/// MPAM interconnect descriptor table
+/// as described in document [1], table 20
+///
+typedef struct {
+  UINT8     Signature[16];
+  UINT32    NumDescriptors;
+} EFI_ACPI_MPAM_INTERCONNECT_DESCRIPTOR_TABLE;
+
+///
+/// MPAM resource locator
+///
+typedef union {
+  EFI_ACPI_MPAM_CACHE_LOCATOR           CacheLocator;
+  EFI_ACPI_MPAM_MEMORY_LOCATOR          MemoryLocator;
+  EFI_ACPI_MPAM_SMMU_LOCATOR            SmmuLocator;
+  EFI_ACPI_MPAM_MEMORY_CACHE_LOCATOR    MemCacheLocator;
+  EFI_ACPI_MPAM_ACPI_LOCATOR            AcpiLocator;
+  EFI_ACPI_MPAM_INTERCONNECT_LOCATOR    InterconnectIfcLocator;
+  EFI_ACPI_MPAM_GENERIC_LOCATOR         GenericLocator;
+} EFI_ACPI_MPAM_LOCATOR;
+
+///
+/// MPAM MSC node body
+/// as described document [1], table 4
+///
+typedef struct {
+  UINT16    Length;
+  UINT8     InterfaceType;
+  UINT8     Reserved;
+  UINT32    Identifier;
+  UINT64    BaseAddress;
+  UINT32    MmioSize;
+  UINT32    OverflowInterrupt;
+  UINT32    OverflowInterruptFlags;
+  UINT32    Reserved1;
+  UINT32    OverflowInterruptAffinity;
+  UINT32    ErrorInterrupt;
+  UINT32    ErrorInterruptFlags;
+  UINT32    Reserved2;
+  UINT32    ErrorInterruptAffinity;
+  UINT32    MaxNrdyUsec;
+  UINT64    HIDLinkedDevice;
+  UINT32    InstanceIDLinkedDevice;
+  UINT32    NumResources;
+} EFI_ACPI_MPAM_MSC_NODE;
+
+///
+/// MPAM MSC resource
+/// as described in document [1], table 9
+///
+typedef struct {
+  UINT32                   Identifier;
+  UINT8                    RisIndex;
+  UINT16                   Reserved1;
+  UINT8                    LocatorType;
+  EFI_ACPI_MPAM_LOCATOR    Locator;
+  UINT32                   NumDependencies;
+} EFI_ACPI_MPAM_MSC_RESOURCE;
+
+///
+/// MPAM Function dependency descriptor
+/// as described in document [1], table 10
+///
+typedef struct {
+  UINT32    Producer;
+  UINT32    Reserved;
+} EFI_ACPI_MPAM_FUNCTIONAL_DEPENDENCY_DESCRIPTOR;
+
+#pragma pack()
+
+#endif
-- 
2.25.1