MPAMF_IMPL_IDR, MPAM Implementation-Specific Partitioning Feature Identification Register

The MPAMF_IMPL_IDR characteristics are:

Purpose

Indicates the implementation-defined partitioning and monitoring features and parameters of the MSC. MPAMF_IMPL_IDR_s indicates IMPLEMENTATION DEFINED partitioning and monitoring features accessed from the Secure MPAM feature page. MPAMF_IMPL_IDR_ns indicates those accessed from the Non-secure MPAM feature page.

If MPAMF_IDR.HAS_RIS is 1, this register gives the implementation-specific features and parameters of the resource instance selected by MPAMCFG_PART_SEL.RIS for any features that are specific to the resource.

Configuration

The power domain of MPAMF_IMPL_IDR is IMPLEMENTATION DEFINED.

This register is present only when FEAT_MPAM is implemented and MPAMF_IDR.HAS_IMPL_IDR == 1. Otherwise, direct accesses to MPAMF_IMPL_IDR are RES0.

Attributes

MPAMF_IMPL_IDR is a 32-bit register.

Field descriptions

The MPAMF_IMPL_IDR bit assignments are:

IMPLFEAT, bits [31:0]

All 32 bits of this register are available to be used as the implementer sees fit to indicate the presence of IMPLEMENTATION DEFINED MPAM features in this MSC and to give additional implementation-specific read-only information about the parameters of implementation-specific MPAM features to software.

If RIS is implemented, this register indicates the implementation-specific features and parameters of the resource instance selected by MPAMCFG_PART_SEL.RIS.

Accessing the MPAMF_IMPL_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_IMPL_IDR is read-only.

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

MPAMF_IMPL_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_IMPL_IDR_s) and Non-secure (MPAMF_IMPL_IDR_ns) MPAM feature pages.

When MPAMF_IDR.HAS_RIS is 1, MPAMF_IMPL_IDR shows the configuration of implementation-specific features 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.

MPAMF_IMPL_IDR can be accessed through the memory-mapped interfaces:

Accesses on this interface are RO.

Accesses on this interface are RO.