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| author | Pierre Gondois <pierre.gondois@arm.com> | 2022-10-10 11:20:55 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-10-31 12:32:32 +0000 |
| commit | 8405b1480f9a60e14343fa6c006adb546fc6c7a2 (patch) | |
| tree | d7b73c59df8b14d10212dd376c7e488b93da6963 /DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h | |
| parent | dab7bac94c6ca31b9c9ed1da97eba7dade0c54a6 (diff) | |
| download | edk2-8405b1480f9a60e14343fa6c006adb546fc6c7a2.tar.gz edk2-8405b1480f9a60e14343fa6c006adb546fc6c7a2.tar.bz2 edk2-8405b1480f9a60e14343fa6c006adb546fc6c7a2.zip | |
DynamicTablesPkg: Add PCCT Generator
The Platform Communication Channel Table (PCCT) generator collates
the relevant information required for generating a PCCT table from
configuration manager using the configuration manager protocol.
The DynamicTablesManager then install the PCCT table.
From ACPI 6.4, s14 PLATFORM COMMUNICATIONS CHANNEL (PCC):
The platform communication channel (PCC) is a generic mechanism
for OSPM to communicate with an entity in the platform.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Diffstat (limited to 'DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h')
| -rw-r--r-- | DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h b/DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h new file mode 100644 index 0000000000..0631a1f5b7 --- /dev/null +++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiPcctLibArm/PcctGenerator.h @@ -0,0 +1,43 @@ +/** @file
+ PCCT Table Generator
+
+ Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+ @par Reference(s):
+ - ACPI 6.4 Specification - January 2021
+ s14 PLATFORM COMMUNICATIONS CHANNEL (PCC)
+
+**/
+
+#ifndef PCCT_GENERATOR_H_
+#define PCCT_GENERATOR_H_
+
+#pragma pack(1)
+
+/** Structure used to map a Pcc Subspace to an index.
+*/
+typedef struct MappingTable {
+ /// Mapping table for Subspace Ids.
+ /// Subspace ID/Index <-> CM_ARM_PCC_SUBSPACE_TYPE[X]_INFO pointer
+ VOID **Table;
+
+ /// Number of entries in the Table.
+ UINT32 MaxIndex;
+} MAPPING_TABLE;
+
+/** A structure holding the Pcct generator and additional private data.
+*/
+typedef struct AcpiPcctGenerator {
+ /// ACPI Table generator header
+ ACPI_TABLE_GENERATOR Header;
+
+ // Private fields are defined from here.
+
+ /// Table to map: Subspace ID/Index <-> CM_ARM_PCC_SUBSPACE_TYPE[X]_INFO pointer
+ MAPPING_TABLE MappingTable;
+} ACPI_PCCT_GENERATOR;
+
+#pragma pack()
+
+#endif // PCCT_GENERATOR_H_
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