The MSMON_CSU characteristics are:
Accesses the CSU monitor selected by MSMON_CFG_MON_SEL. MSMON_CSU_s is the Secure cache storage usage monitor instance selected by the Secure instance of MSMON_CFG_MON_SEL. MSMON_CSU_ns is the Non-secure cache storage usage monitor instance selected by the Non-secure instance of MSMON_CFG_MON_SEL.
The power domain of MSMON_CSU 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_CSU are RES0.
MSMON_CSU is a 32-bit register.
The MSMON_CSU 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 |
NRDY | VALUE |
Not Ready. Indicates whether the monitor has possibly inaccurate data.
NRDY | Meaning |
---|---|
0b0 |
The monitor is not ready and the contents of the VALUE field might be inaccurate or otherwise not represent the actual cache storage usage. |
0b1 |
The monitor is ready and the VALUE fields is accurate. |
Cache storage usage value if NRDY == 0. Invalid if NRDY == 1.
VALUE is the 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.
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.
MSMON_CSU_s must be accessible from the Secure MPAM feature page. MSMON_CSU_ns must be accessible from the Non-secure MPAM feature page.
MSMON_CSU_s and MSMON_CSU_ns must be separate registers. The Secure instance (MSMON_CSU_s) accesses the cache storage usage monitor used for Secure PARTIDs, and the Non-secure instance (MSMON_CSU_ns) accesses the cache storage usage monitor used for Non-secure PARTIDs.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_s | 0x0840 | MSMON_CSU_s |
Accesses on this interface are RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_ns | 0x0840 | MSMON_CSU_ns |
Accesses on this interface are RW.
13/12/2019 15:13; 391b5248b29fb2f001ef74792eaacbd6fc72f211
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