MPAMF_MSMON_IDR, MPAM Resource Monitoring Identification Register

The MPAMF_MSMON_IDR characteristics are:

Purpose

Indicates which MPAM monitoring features are present on this MSC. MPAMF_MSMON_IDR_s indicates Secure monitoring features. MPAMF_MSMON_IDR_ns indicates Non-secure monitoring features.

If MPAMF_IDR.HAS_RIS is 1, fields that mention RIS must reflect the properties of the resource instance currently selected by MPAMCFG_PART_SEL.RIS. Fields that do not mention RIS are constant across all resource instances.

Configuration

The power domain of MPAMF_MSMON_IDR is IMPLEMENTATION DEFINED.

This register is present only when MPAMF_IDR.HAS_MSMON == 1. Otherwise, direct accesses to MPAMF_MSMON_IDR are RES0.

Attributes

MPAMF_MSMON_IDR is a 32-bit register.

Field descriptions

The MPAMF_MSMON_IDR bit assignments are:

HAS_LOCAL_CAPT_EVNT, bit [31]

Has local capture event generator. Indicates whether this MSC has the MPAM local capture event generator and the MSMON_CAPT_EVNT register.

Bits [30:18]

Reserved, RES0.

MSMON_MBWU, bit [17]

Memory bandwidth usage monitoring. Indicates whether MPAM monitoring for Memory Bandwidth Usage by PARTID and PMG is implemented and whether the following bandwidth usage registers are accessible:

• MPAMF_MBWUMON_IDR, MSMON_CFG_MBWU_CTL, MSMON_CFG_MBWU_FLT, MSMON_MBWU.
• The optional MSMON_MBWU_CAPTURE.
• If MPAM v0.1 or MPAM v1.1 is implemented, the optional MSMON_MBWU_L and the optional MSMON_MBWU_L_CAPTURE.

If RIS is implemented, this field indicates that memory bandwidth usage monitoring is implemented for the resource instance selected by MPAMCFG_PART_SEL.RIS as described in MPAMF_MBWUMON_IDR.

MSMON_CSU, bit [16]

Cache storage usage monitoring. Indicates whether MPAM monitoring of cache storage usage by PARTID and PMG is implemented and the following registers are accessible:

• MPAMF_CSUMON_IDR, MSMON_CFG_CSU_CTL, MSMON_CFG_CSU_FLT, MSMON_CSU.
• The optional MSMON_CSU_CAPTURE.

If RIS is implemented, this field indicates that cache storage usage monitoring is implemented for the resource instance selected by MPAMCFG_PART_SEL.RIS as described in MPAMF_CSUMON_IDR.

Bits [15:0]

Reserved, RES0.

Accessing the MPAMF_MSMON_IDR

This register is within the MPAM feature page memory frames. In a system that supports Secure and Non-secure memory maps, there must be both Secure and Non-secure MPAM feature pages.

MPAMF_MSMON_IDR is read-only.

MPAMF_MSMON_IDR must be readable from the Non-secure and Secure MPAM feature pages.

MPAMF_MSMON_IDR is permitted to have the same contents when read from either the Secure and Non-secure MPAM feature pages unless the register contents is different for Secure and Non-secure versions, when there must be separate registers in the Secure (MPAMF_MSMON_IDR_s) and Non-secure (MPAMF_MSMON_IDR_ns) MPAM feature pages.

When MPAMF_IDR.HAS_RIS is 1, MPAMF_MSMON_IDR shows the configuration of memory system monitoring for the resource instance selected by MPAMCFG_PART_SEL.RIS. Fields that mention RIS in their field descriptions have values that track the implemented properties of the resource instance. Fields that do not mention RIS are constant across all resource instances.

Access to MPAMF_MSMON_IDR is not affected by MSMON_CFG_MON_SEL.RIS.

MPAMF_MSMON_IDR can be accessed through the memory-mapped interfaces:

Accesses on this interface are RO.

Accesses on this interface are RO.