Re: [PATCH 1/2] Mde Pkg: Support for MPAM ACPI Table

[Swatisri Kantamsetti <swatisrik@nvidia.com>]

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Just a reminder to provide feedback on this patch.

Thanks,
Swati

swatisrik@nvidia.com
________________________________
From: Name <username@nvidia.com>
Sent: Tuesday, August 16, 2022 2:18 PM
To: devel@edk2.groups.io <devel@edk2.groups.io>; Sami.Mujawar@arm.com <Sami.Mujawar@arm.com>; Alexei.Fedorov@arm.com <Alexei.Fedorov@arm.com>; michael.d.kinney@intel.com <michael.d.kinney@intel.com>; gaoliming@byosoft.com.cn <gaoliming@byosoft.com.cn>; zhiguang.liu@intel.com <zhiguang.liu@intel.com>
Cc: Swatisri Kantamsetti <swatisrik@nvidia.com>
Subject: [PATCH 1/2] Mde Pkg: Support for MPAM ACPI Table

From: Swatisri Kantamsetti <swatisrik@nvidia.com>

Added MPAM table header, MSC and Resource Node
info structures

Signed-off-by: Swatisri Kantamsetti <swatisrik@nvidia.com>
---
 MdePkg/Include/IndustryStandard/Acpi64.h |  5 ++
 MdePkg/Include/IndustryStandard/Mpam.h   | 69 ++++++++++++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 MdePkg/Include/IndustryStandard/Mpam.h

diff --git a/MdePkg/Include/IndustryStandard/Acpi64.h b/MdePkg/Include/IndustryStandard/Acpi64.h
index fe5ebfac2b..e54f631186 100644
--- a/MdePkg/Include/IndustryStandard/Acpi64.h
+++ b/MdePkg/Include/IndustryStandard/Acpi64.h
@@ -2952,6 +2952,11 @@ typedef struct {
 ///
 #define EFI_ACPI_6_4_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('P', 'P', 'T', 'T')

+///
+/// "MPAM" Memory System Resource Partitioning And Monitoring Table
+///
+#define EFI_ACPI_6_4_MEMORY_SYSTEM_RESOURCE_PARTITIONING_MONITORING_TABLE_STRUCTURE_SIGNATURE  SIGNATURE_32('M', 'P', 'A', 'M')
+
 ///
 /// "PSDT" Persistent System Description Table
 ///
diff --git a/MdePkg/Include/IndustryStandard/Mpam.h b/MdePkg/Include/IndustryStandard/Mpam.h
new file mode 100644
index 0000000000..e0f75f0114
--- /dev/null
+++ b/MdePkg/Include/IndustryStandard/Mpam.h
@@ -0,0 +1,69 @@
+/** @file
+  ACPI Memory System Resource Partitioning And Monitoring (MPAM)
+  as specified in ARM spec DEN0065
+
+  Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
+  Copyright (c) 2022, ARM Limited. All rights reserved.
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef _MPAM_H_
+#define _MPAM_H_
+
+#pragma pack(1)
+
+///
+/// Memory System Resource Partitioning and Monitoring Table (MPAM)
+///
+typedef struct {
+  EFI_ACPI_DESCRIPTION_HEADER    Header;
+  UINT32                         NumNodes;
+  UINT32                         NodeOffset;
+  UINT32                         Reserved;
+} EFI_ACPI_6_4_MEMORY_SYSTEM_RESOURCE_PARTITIONING_MONITORING_TABLE_HEADER;
+
+///
+/// MPAM Revision (as defined in ACPI 6.4 spec.)
+///
+#define EFI_ACPI_6_4_MEMORY_SYSTEM_RESOURCE_PARTITIONING_MONITORING_TABLE_REVISION  0x01
+
+///
+/// Memory System Controller Node Structure
+///
+
+typedef struct {
+  UINT16    Length;
+  UINT16    Reserved;
+  UINT32    Identifier;
+  UINT64    BaseAddress;
+  UINT32    MmioSize;
+  UINT32    OverflowInterrupt;
+  UINT32    OverflowInterruptFlags;
+  UINT32    Reserved1;
+  UINT32    OverflowInterruptAff;
+  UINT32    ErrorInterrupt;
+  UINT32    ErrorInterruptFlags;
+  UINT32    Reserved2;
+  UINT32    ErrorInterruptAff;
+  UINT32    MaxNRdyUsec;
+  UINT64    LinkedDeviceHwId;
+  UINT32    LinkedDeviceInstanceHwId;
+  UINT32    NumResourceNodes;
+} EFI_ACPI_6_4_MPAM_MSC_NODE;
+
+///
+/// Resource Node Structure
+///
+
+typedef struct {
+  UINT32    Identifier;
+  UINT8     RisIndex;
+  UINT16    Reserved1;
+  UINT8     LocatorType;
+  UINT64    Locator;
+  UINT32    NumFuncDep;
+} EFI_ACPI_6_4_MPAM_RESOURCE_NODE;
+
+#pragma pack()
+
+#endif
--
2.17.1


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