GITS_MPIDR, Report ITS's affinity.

The GITS_MPIDR characteristics are:

Purpose

Reports ITS's affinity when the vPE Table is shared with Redistributors.

Configuration

This register is present only when GICv4.1 is implemented. Otherwise, direct accesses to GITS_MPIDR are RES0.

A copy of this register is provided for each ITS.

When GITS_TYPER.SVPET==0, this register is RES0.

Attributes

GITS_MPIDR is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
Aff3Aff2Aff1RES0

Aff3, bits [31:24]

The Affinity level 3 value for the ITS.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Aff2, bits [23:16]

The Affinity level 2 value for the ITS.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Aff1, bits [15:8]

The Affinity level 1 value for the ITS.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Bits [7:0]

Reserved, RES0.

Accessing GITS_MPIDR

GITS_MPIDR can be accessed through the memory-mapped interfaces:

ComponentOffset
GIC ITS control0x0018

Accesses on this interface are RO.


15/03/2024 21:50; 3156453dc257d36c4630671c3d896bfc69048210

Copyright © 2010-2023 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.