AArch32 Registers | AArch64 Registers | AArch32 Instructions | AArch64 Instructions | Index by Encoding | External Registers | External Registers by Offset | Registers by Functional Group | Proprietary Notice

# GITS_PARTIDR, Set PARTID and PMG Register

The GITS_PARTIDR characteristics are:

## Purpose

Sets the PARTID and PMG values used for memory accesses by the ITS.

## Configuration

This register is present only when GICv3.1 is implemented. Otherwise, direct accesses to GITS_PARTIDR are RES0.

A copy of this register is provided for each ITS.

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

## Attributes

GITS_PARTIDR is a 32-bit register.

## Field descriptions

31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
RES0 | PMG | PARTID

#### Bits [31:24]

Reserved, RES0.

#### PMG, bits [23:16]

PMG value used when ITS accesses memory.

Bits not needed to represent PMG values in the range 0 to PMG_MAX are RES0.

The reset behavior of this field is:

- On a GIC reset, this field resets to 0.

#### PARTID, bits [15:0]

PARTID value used when ITS accesses memory.

Bits not needed to represent PARTID values in the range 0 to PARTID_MAX are RES0.

The reset behavior of this field is:

- On a GIC reset, this field resets to 0.

## Accessing GITS_PARTIDR

#### GITS_PARTIDR can be accessed through the memory-mapped interfaces:

Component | Offset
--- | ---
GIC ITS control | 0x0014

Accesses on this interface are RW.

AArch32 Registers | AArch64 Registers | AArch32 Instructions | AArch64 Instructions | Index by Encoding | External Registers | External Registers by Offset | Registers by Functional Group | Proprietary Notice

26/03/2024 09:49; 67c0ae5282a7629ba0ea0ba7267b43cd4f7939f6

Copyright © 2010-2024 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.