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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>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/** @file
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PCCT Table Generator
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Copyright (c) 2022, Arm Limited. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Reference(s):
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- ACPI 6.4 Specification - January 2021
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s14 PLATFORM COMMUNICATIONS CHANNEL (PCC)
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**/
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#ifndef PCCT_GENERATOR_H_
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#define PCCT_GENERATOR_H_
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#pragma pack(1)
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/** Structure used to map a Pcc Subspace to an index.
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*/
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typedef struct MappingTable {
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/// Mapping table for Subspace Ids.
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/// Subspace ID/Index <-> CM_ARM_PCC_SUBSPACE_TYPE[X]_INFO pointer
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VOID **Table;
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/// Number of entries in the Table.
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UINT32 MaxIndex;
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} MAPPING_TABLE;
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/** A structure holding the Pcct generator and additional private data.
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*/
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typedef struct AcpiPcctGenerator {
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/// ACPI Table generator header
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ACPI_TABLE_GENERATOR Header;
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// Private fields are defined from here.
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/// Table to map: Subspace ID/Index <-> CM_ARM_PCC_SUBSPACE_TYPE[X]_INFO pointer
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MAPPING_TABLE MappingTable;
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} ACPI_PCCT_GENERATOR;
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#pragma pack()
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#endif // PCCT_GENERATOR_H_
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