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# MSMON_CFG_CSU_FLT, MPAM Memory System Monitor Configure Cache Storage Usage Monitor Filter Register

The MSMON_CFG_CSU_FLT characteristics are:

## Purpose

MSMON_CFG_CSU_FLT is a 32-bit read-write register that sets PARTID and PMG to measure or count in the CSU monitor selected by MSMON_CFG_MON_SEL.

## Configuration

The power domain of MSMON_CFG_CSU_FLT is IMPLEMENTATION DEFINED.

This register is present only when MPAMF_IDR.HAS_MSMON == 1 and MPAMF_MSMON_IDR.MSMON_CSU == 1. Otherwise, direct accesses to MSMON_CFG_CSU_FLT are IMPLEMENTATION DEFINED.

## Attributes

MSMON_CFG_CSU_FLT is a 32-bit register.

## Field descriptions

The MSMON_CFG_CSU_FLT 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]

Performance monitoring group to filter cache storage usage monitoring.

If MSMON_CFG_CSU_CTL.MATCH_PMG == 0, this field is not used to match cache storage to a PMG and the contents of this field is ignored.

If MSMON_CFG_CSU_CTL.MATCH_PMG == 1 and MSMON_CFG_CSU_CTL.MATCH_PARTID == 1, the monitor instance selected by MSMON_CFG_MON_SEL measures or counts cache storage labeled with PMG equal to this field and PARTID equal to the PARTID field.

If MSMON_CFG_CSU_CTL.MATCH_PMG == 1 and MSMON_CFG_CSU_CTL.MATCH_PARTID == 0, the behavior of the monitor instance selected by MSMON_CFG_MON_SEL is CONSTRAINED UNPREDICTABLE. See MSMON_CFG_CSU_CTL.MATCH_PMG for more information.

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

Partition ID to filter cache storage usage monitoring.

If MSMON_CFG_CSU_CTL.MATCH_PARTID == 0 and MSMON_CFG_CSU_CTL.MATCH_PMG == 0, the monitor measures all allocated cache storage.

If MSMON_CFG_CSU_CTL.MATCH_PARTID == 0 and MSMON_CFG_CSU_CTL.MATCH_PMG == 1, the monitor's behavior is CONSTRAINED UNPREDICTABLE. See the description of MSMON_CFG_CSU_CTL.MATCH_PMG.

If MSMON_CFG_CSU_CTL.MATCH_PARTID == 1 and MSMON_CFG_CSU_CTL.MATCH_PMG == 0, the monitor selected by MSMON_CFG_MON_SEL measures or counts cache storage labeled with PARTID equal to this field.

If MSMON_CFG_CSU_CTL.MATCH_PARTID == 1 and MSMON_CFG_CSU_CTL.MATCH_PMG == 1, the monitor selected by MSMON_CFG_MON_SEL measures or counts cache storage labeled with PARTID equal to this field and PMG equal to the PMG field.

## Accessing the MSMON_CFG_CSU_FLT

This register is part of the MPAMF_BASE memory frame. In a system that supports Secure and Non-secure memory maps, the MPAMF_BASE frame must be accessible in both Secure and Non-secure memory address maps.

MSMON_CFG_CSU_FLT must be accessible from the Non-secure and Secure address maps.

MSMON_CFG_CSU_FLT must be banked for the Secure and Non-secure address maps. The Secure instance accesses the PARTID and PMG matching for a cache storage usage monitor used for Secure PARTIDs, and the Non-secure instance accesses the PARTID and PMG matching for a cache storage usage monitor used for Non-secure PARTIDs.

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

Component | Frame | Offset | Instance
--- | --- | --- | ---
MPAM.any | MPAMF_BASE_s | 0x0810 | MSMON_CFG_CSU_FLT_s

Access on this interface is RW.

Component | Frame | Offset | Instance
--- | --- | --- | ---
MPAM.any | MPAMF_BASE_ns | 0x0810 | MSMON_CFG_CSU_FLT_ns

Access on this interface 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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