SlitParser.c File Reference

#include <IndustryStandard/Acpi.h>
#include <Library/PrintLib.h>
#include <Library/UefiLib.h>
#include "AcpiParser.h"
#include "AcpiTableParser.h"

Go to the source code of this file.

Macros
#define	SLIT_ELEMENT(Ptr, i, j)   *(Ptr + (i * LocalityCount) + j)

Functions
VOID EFIAPI	ParseAcpiSlit (IN BOOLEAN Trace, IN UINT8 *Ptr, IN UINT32 AcpiTableLength, IN UINT8 AcpiTableRevision)

Variables
STATIC CONST UINT64 *	SlitSystemLocalityCount
STATIC ACPI_DESCRIPTION_HEADER_INFO	AcpiHdrInfo
STATIC CONST ACPI_PARSER	SlitParser []

Detailed Description

SLIT table parser

Copyright (c) 2016 - 2019, ARM Limited. All rights reserved. SPDX-License-Identifier: BSD-2-Clause-Patent

Reference(s):

• ACPI 6.2 Specification - Errata A, September 2017

Definition in file SlitParser.c.

Macro Definition Documentation

SLIT_ELEMENT

#define SLIT_ELEMENT	(		Ptr,
			i,
			j
	)		*(Ptr + (i * LocalityCount) + j)

Macro to get the value of a System Locality

Definition at line 33 of file SlitParser.c.

Function Documentation

ParseAcpiSlit()

VOID EFIAPI ParseAcpiSlit	(	IN BOOLEAN	Trace,
		IN UINT8 *	Ptr,
		IN UINT32	AcpiTableLength,
		IN UINT8	AcpiTableRevision
	)

This function parses the ACPI SLIT table. When trace is enabled this function parses the SLIT table and traces the ACPI table fields.

This function also validates System Localities for the following:

• Diagonal elements have a normalized value of 10
• Relative distance from System Locality at i*N+j is same as j*N+i

Parameters

[in]	Trace	If TRUE, trace the ACPI fields.
[in]	Ptr	Pointer to the start of the buffer.
[in]	AcpiTableLength	Length of the ACPI table.
[in]	AcpiTableRevision	Revision of the ACPI table.

Definition at line 52 of file SlitParser.c.

Variable Documentation

AcpiHdrInfo

STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo

Definition at line 19 of file SlitParser.c.

SlitParser

STATIC CONST ACPI_PARSER SlitParser[]

Initial value:

= {
  PARSE_ACPI_HEADER (&AcpiHdrInfo),
  { L"Number of System Localities",   8,     36, L"0x%lx", NULL,
    (VOID **)&SlitSystemLocalityCount,NULL,  NULL }
}

An ACPI_PARSER array describing the ACPI SLIT table.

Definition at line 24 of file SlitParser.c.

SlitSystemLocalityCount

STATIC CONST UINT64* SlitSystemLocalityCount

Definition at line 18 of file SlitParser.c.