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# 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 GIC, >=3.1 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

The GITS_PARTIDR bit assignments are:

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.

It is IMPLEMENTATION DEFINED whether bits not needed to represent PMG values in the range 0 to PMG_MAX are stateful or RES0.

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

PARTID value used when ITS accesses memory.

It is IMPLEMENTATION DEFINED whether bits not needed to represent PARTID values in the range 0 to PARTID_MAX are stateful or RES0.

## Accessing the GITS_PARTIDR

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

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

This interface is accessible as follows:

- When GICD_CTLR.DS == 0b0 access to this register is RW.
- When IsAccessSecure() access to this register is RW.
- When !IsAccessSecure() access to this register is RW.

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

15/04/2019 16:47; 8c23526ba8a13a72aada4137daf3e3977b49036e

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