MSMON_CSU_CAPTURE, MPAM Cache Storage Usage Monitor Capture Register

The MSMON_CSU_CAPTURE characteristics are:

Purpose

MSMON_CSU_CAPTURE is a 32-bit read-write register that accesses the captured MSMON_CSU monitor selected by MSMON_CFG_MON_SEL.

Configuration

The power domain of MSMON_CSU_CAPTURE is IMPLEMENTATION DEFINED.

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

Attributes

MSMON_CSU_CAPTURE is a 32-bit register.

Field descriptions

The MSMON_CSU_CAPTURE bit assignments are:

NRDY, bit [31]

Not Ready. Indicates whether the captured monitor value has possibly inaccurate data.

VALUE, bits [30:0]

Captured cache storage usage value if NRDY == 0. Invalid if NRDY == 1.

VALUE is the captured cache storage usage in bytes meeting the criteria set in MSMON_CFG_CSU_FLT and MSMON_CFG_CSU_CTL for the monitor instance selected by MSMON_CFG_MON_SEL.

Accessing the MSMON_CSU_CAPTURE

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

MSMON_CSU_CAPTURE must be banked for the Secure and Non-secure address maps. The Secure instance accesses the captured cache storage usage monitor used for Secure PARTIDs, and the Non-secure instance accesses the captured cache storage usage monitor used for Non-secure PARTIDs.

MSMON_CSU_CAPTURE can be accessed through the memory-mapped interfaces:

Access on this interface is RW.

Access on this interface is RW.