[edk2-platforms][PATCH V3 14/14] Platform/Sgi: ACPI PPTT table for RD-N2 platform


Pranav Madhu
 

The RD-N2 platform includes sixteen single-thread CPUS. Each of the
CPUs include 64KB L1 Data cache, 64KB L1 Instruction cache and 1MB L2
cache. The platform also includes a system level cache of 32MB. Add PPTT
table for RD-N2 platform with this information.

Signed-off-by: Pranav Madhu <pranav.madhu@arm.com>
---
Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf | 3 +-
Platform/ARM/SgiPkg/AcpiTables/RdN2/Pptt.aslc | 175 ++++++++++++++++=
++++
2 files changed, 177 insertions(+), 1 deletion(-)

diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf b/Platform=
/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
index 2ec3e42473a9..c1282a3422ab 100644
--- a/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2AcpiTables.inf
@@ -1,7 +1,7 @@
## @file
# ACPI table data and ASL sources required to boot the platform.
#
-# Copyright (c) 2020, Arm Ltd. All rights reserved.
+# Copyright (c) 2020-2021, Arm Ltd. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -22,6 +22,7 @@
Mcfg.aslc
RdN2/Dsdt.asl
RdN2/Madt.aslc
+ RdN2/Pptt.aslc
Spcr.aslc
Ssdt.asl
SsdtRos.asl
diff --git a/Platform/ARM/SgiPkg/AcpiTables/RdN2/Pptt.aslc b/Platform/ARM=
/SgiPkg/AcpiTables/RdN2/Pptt.aslc
new file mode 100644
index 000000000000..16daf5b7f266
--- /dev/null
+++ b/Platform/ARM/SgiPkg/AcpiTables/RdN2/Pptt.aslc
@@ -0,0 +1,175 @@
+/** @file
+* Processor Properties Topology Table (PPTT) for RD-N2 platform
+*
+* This file describes the topological structure of the processor block o=
n the
+* RD-N2 platform in the form as defined by ACPI PPTT table. The RD-N2 pl=
atform
+* includes sixteen single-thread CPUS. Each of the CPUs include 64KB L1 =
Data
+* cache, 64KB L1 Instruction cache and 1MB L2 cache. The platform also i=
ncludes
+* system level cache of 32MB.
+*
+* Copyright (c) 2021, ARM Limited. All rights reserved.
+*
+* SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+* @par Specification Reference:
+* - ACPI 6.3, Chapter 5, Section 5.2.29, Processor Properties Topology=
Table
+**/
+
+#include <IndustryStandard/Acpi.h>
+#include <Library/AcpiLib.h>
+#include <Library/ArmLib.h>
+#include <Library/PcdLib.h>
+
+#include "SgiPlatform.h"
+#include "SgiAcpiHeader.h"
+
+/*!
+ \brief Define helper macro for populating processor core information.
+ \param PackageId Package instance number.
+ \param ClusterId Cluster instance number.
+ \param CpuId CPU instance number.
+*/
+#define PPTT_CORE_INIT(PackageId, ClusterId, CpuId) =
\
+ { =
\
+ /* Parameters for CPU Core */ =
\
+ EFI_ACPI_6_3_PPTT_STRUCTURE_PROCESSOR_INIT ( =
\
+ OFFSET_OF (RD_PPTT_CORE, DCache), /* Length */ =
\
+ PPTT_PROCESSOR_CORE_FLAGS, /* Flag */ =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package.Cluster[ClusterId]), /* Parent */ =
\
+ ((PackageId << 4) | ClusterId), /* ACPI Id */ =
\
+ 2 /* Num of private resource *=
/ \
+ ), =
\
+ =
\
+ /* Offsets of the private resources */ =
\
+ { =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package.Cluster[ClusterId].Core[CpuId].DCache), =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package.Cluster[ClusterId].Core[CpuId].ICache) =
\
+ }, =
\
+ =
\
+ /* L1 data cache parameters */ =
\
+ EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE_INIT ( =
\
+ PPTT_CACHE_STRUCTURE_FLAGS, /* Flag */ =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package.Cluster[ClusterId].Core[CpuId].L2Cache), =
\
+ /* Next level of cache */ =
\
+ SIZE_64KB, /* Size */ =
\
+ 256, /* Num of sets */ =
\
+ 4, /* Associativity */ =
\
+ PPTT_DATA_CACHE_ATTR, /* Attributes */ =
\
+ 64 /* Line size */ =
\
+ ), =
\
+ =
\
+ /* L1 instruction cache parameters */ =
\
+ EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE_INIT ( =
\
+ PPTT_CACHE_STRUCTURE_FLAGS, /* Flag */ =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package.Cluster[ClusterId].Core[CpuId].L2Cache), =
\
+ /* Next level of cache */ =
\
+ SIZE_64KB, /* Size */ =
\
+ 256, /* Num of sets */ =
\
+ 4, /* Associativity */ =
\
+ PPTT_INST_CACHE_ATTR, /* Attributes */ =
\
+ 64 /* Line size */ =
\
+ ), =
\
+ =
\
+ /* L2 cache parameters */ =
\
+ EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE_INIT ( =
\
+ PPTT_CACHE_STRUCTURE_FLAGS, /* Flag */ =
\
+ 0, /* Next level of cache */ =
\
+ SIZE_1MB, /* Size */ =
\
+ 2048, /* Num of sets */ =
\
+ 8, /* Associativity */ =
\
+ PPTT_UNIFIED_CACHE_ATTR, /* Attributes */ =
\
+ 64 /* Line size */ =
\
+ ), =
\
+ }
+
+/*!
+ \brief Define helper macro for populating processor container informa=
tion.
+ \param PackageId Package instance number.
+ \param ClusterId Cluster instance number.
+*/
+#define PPTT_CLUSTER_INIT(PackageId, ClusterId) =
\
+ { =
\
+ /* Parameters for Cluster */ =
\
+ EFI_ACPI_6_3_PPTT_STRUCTURE_PROCESSOR_INIT ( =
\
+ OFFSET_OF (RD_PPTT_MINIMAL_CLUSTER, Core), /* Length */ =
\
+ PPTT_PROCESSOR_CLUSTER_FLAGS, /* Flag */ =
\
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE, =
\
+ Package), /* Parent */ =
\
+ ((PackageId << 4) | ClusterId), /* ACPI Id */ =
\
+ 0 /* Num of private resource *=
/ \
+ ), =
\
+ =
\
+ /* Initialize child core */ =
\
+ { =
\
+ PPTT_CORE_INIT (PackageId, ClusterId, 0) =
\
+ } =
\
+ }
+
+#pragma pack(1)
+/*
+ * Processor Properties Topology Table
+ */
+typedef struct {
+ EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_HEADER Header;
+ RD_PPTT_SLC_PACKAGE Package;
+} EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE;
+#pragma pack ()
+
+STATIC EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE Pptt =3D {
+ {
+ ARM_ACPI_HEADER (
+ EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_STRUCTURE_SIGNATU=
RE,
+ EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE,
+ EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE_REVISION
+ )
+ },
+
+ {
+ EFI_ACPI_6_3_PPTT_STRUCTURE_PROCESSOR_INIT (
+ OFFSET_OF (RD_PPTT_SLC_PACKAGE, Slc),
+ PPTT_PROCESSOR_PACKAGE_FLAGS, 0, 0, 1),
+
+ OFFSET_OF (EFI_ACPI_6_3_PROCESSOR_PROPERTIES_TOPOLOGY_TABLE,
+ Package.Slc),
+
+ EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE_INIT (
+ PPTT_CACHE_STRUCTURE_FLAGS, /* Flag */
+ 0, /* Next level of cache */
+ SIZE_32MB, /* Size */
+ 32768, /* Num of sets */
+ 16, /* Associativity */
+ PPTT_UNIFIED_CACHE_ATTR, /* Attributes */
+ 64 /* Line size */
+ ),
+
+ {
+ PPTT_CLUSTER_INIT (0, 0),
+ PPTT_CLUSTER_INIT (0, 1),
+ PPTT_CLUSTER_INIT (0, 2),
+ PPTT_CLUSTER_INIT (0, 3),
+ PPTT_CLUSTER_INIT (0, 4),
+ PPTT_CLUSTER_INIT (0, 5),
+ PPTT_CLUSTER_INIT (0, 6),
+ PPTT_CLUSTER_INIT (0, 7),
+ PPTT_CLUSTER_INIT (0, 8),
+ PPTT_CLUSTER_INIT (0, 9),
+ PPTT_CLUSTER_INIT (0, 10),
+ PPTT_CLUSTER_INIT (0, 11),
+ PPTT_CLUSTER_INIT (0, 12),
+ PPTT_CLUSTER_INIT (0, 13),
+ PPTT_CLUSTER_INIT (0, 14),
+ PPTT_CLUSTER_INIT (0, 15)
+ }
+ }
+};
+
+/*
+ * Reference the table being generated to prevent the optimizer from rem=
oving
+ * the data structure from the executable
+ */
+VOID* CONST ReferenceAcpiTable =3D &Pptt;
--=20
2.17.1

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