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.
NRDY | Meaning |
---|---|
0b0 |
The captured monitor was not ready and the contents of the VALUE field might be inaccurate or otherwise not represent the actual cache storage usage. |
0b1 |
The captured monitor was ready and the VALUE fields is accurate. |
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:
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM.any | MPAMF_BASE_s | 0x0848 | MSMON_CSU_CAPTURE_s |
Access on this interface is RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM.any | MPAMF_BASE_ns | 0x0848 | MSMON_CSU_CAPTURE_ns |
Access on this interface is RW.