mirror of https://github.com/acidanthera/audk.git
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/** @file
|
|
APMT table parser
|
|
|
|
Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
|
|
Copyright (c) 2017 - 2018, ARM Limited. All rights reserved.
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
@par Reference(s):
|
|
- ACPI 6.2 Specification - Errata A, September 2017
|
|
**/
|
|
|
|
#include <IndustryStandard/Acpi.h>
|
|
#include <IndustryStandard/ArmPerformanceMonitoringUnitTable.h>
|
|
#include <Library/UefiLib.h>
|
|
#include "AcpiParser.h"
|
|
#include "AcpiTableParser.h"
|
|
|
|
// Local variables
|
|
STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;
|
|
STATIC CONST UINT16 *NodeLength;
|
|
|
|
/**
|
|
An ACPI_PARSER array describing the ACPI APMT Table.
|
|
**/
|
|
STATIC CONST ACPI_PARSER ApmtParser[] = {
|
|
PARSE_ACPI_HEADER (&AcpiHdrInfo)
|
|
};
|
|
|
|
/**
|
|
An ACPI_PARSER array describing the ACPI Arm PMU Node.
|
|
**/
|
|
STATIC CONST ACPI_PARSER ArmPmuNodeParser[] = {
|
|
{ L"Length", 2, 0, L"0x%x", NULL, (VOID **)&NodeLength, NULL, NULL },
|
|
{ L"Node flags", 1, 2, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Node type", 1, 3, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Identifier", 4, 4, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Node Instance primary", 8, 8, L"0x%lx", NULL, NULL, NULL, NULL },
|
|
{ L"Node Instance secondary", 4, 16, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Base address 0", 8, 20, L"0x%lx", NULL, NULL, NULL, NULL },
|
|
{ L"Base address 1", 8, 28, L"0x%lx", NULL, NULL, NULL, NULL },
|
|
{ L"Overflow interrupt", 4, 36, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Reserved1", 4, 40, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Overflow interrupt flags", 4, 44, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Processor affinity", 4, 48, L"0x%x", NULL, NULL, NULL, NULL },
|
|
{ L"Implementation ID", 4, 52, L"0x%x", NULL, NULL, NULL, NULL }
|
|
};
|
|
|
|
/**
|
|
This function parses the ACPI APMT table.
|
|
When trace is enabled this function parses the APMT table and
|
|
traces the ACPI table fields.
|
|
|
|
This function also performs validation of the ACPI table fields.
|
|
|
|
@param [in] Trace If TRUE, trace the ACPI fields.
|
|
@param [in] Ptr Pointer to the start of the buffer.
|
|
@param [in] AcpiTableLength Length of the ACPI table.
|
|
@param [in] AcpiTableRevision Revision of the ACPI table.
|
|
**/
|
|
VOID
|
|
EFIAPI
|
|
ParseAcpiApmt (
|
|
IN BOOLEAN Trace,
|
|
IN UINT8 *Ptr,
|
|
IN UINT32 AcpiTableLength,
|
|
IN UINT8 AcpiTableRevision
|
|
)
|
|
{
|
|
UINT32 Offset;
|
|
|
|
if (!Trace) {
|
|
return;
|
|
}
|
|
|
|
ParseAcpi (
|
|
Trace,
|
|
0,
|
|
"APMT",
|
|
Ptr,
|
|
AcpiTableLength,
|
|
PARSER_PARAMS (ApmtParser)
|
|
);
|
|
Offset = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
|
|
|
|
while (Offset < AcpiTableLength) {
|
|
ParseAcpi (
|
|
Trace,
|
|
2,
|
|
"Arm PMU node",
|
|
Ptr + Offset,
|
|
(AcpiTableLength - Offset),
|
|
PARSER_PARAMS (ArmPmuNodeParser)
|
|
);
|
|
if (NodeLength == NULL) {
|
|
Print (
|
|
L"ERROR: Insufficient remaining table buffer length to read the " \
|
|
L"Node structure. Length = %d.\n",
|
|
(AcpiTableLength - Offset)
|
|
);
|
|
IncrementErrorCount ();
|
|
break;
|
|
}
|
|
|
|
Offset += *NodeLength;
|
|
}
|
|
}
|