The MSMON_CFG_CSU_CTL characteristics are:
MSMON_CFG_CSU_CTL is a 32-bit read-write register that controls the CSU monitor selected by MSMON_CFG_MON_SEL.
The power domain of MSMON_CFG_CSU_CTL 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_CFG_CSU_CTL are IMPLEMENTATION DEFINED.
MSMON_CFG_CSU_CTL is a 32-bit register.
The MSMON_CFG_CSU_CTL 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 |
EN | CAPT_EVNT | CAPT_RESET | OFLOW_STATUS | OFLOW_INTR | OFLOW_FRZ | SUBTYPE | RES0 | MATCH_PMG | MATCH_PARTID | RES0 | TYPE |
Enabled.
EN | Meaning |
---|---|
0b0 |
The monitor is disabled and must not collect any information. |
0b1 |
The monitor is enabled to collect information according to its configuration. |
Capture event selector.
Select the event that triggers capture from the following:
CAPT_EVNT | Meaning |
---|---|
0b000 |
No capture event is triggered. |
0b001 |
External capture event 1 (optional but recommended) |
0b010 |
External capture event 2 (optional) |
0b011 |
External capture event 3 (optional) |
0b100 |
External capture event 4 (optional) |
0b101 |
External capture event 5 (optional) |
0b110 |
External capture event 6 (optional) |
0b111 |
Capture occurs when a MSMON_CAPT_EVNT register in this MSC is written and causes a capture event for the security state of this monitor. (optional) |
The values marked as optional indicate capture event sources that can be omitted in an implementation. Those values representing non-implemented event sources should not trigger a capture event.
If capture is not implemented for the CSU monitor type as indicated by MPAMF_CSUMON_IDR.HAS_CAPTURE = 0, this field is RAZ/WI.
Reset after capture.
Controls whether the value of MSMON_CSU is reset to zero immediately after being copied to MSMON_CSU_CAPTURE.
CAPT_RESET | Meaning |
---|---|
0b0 |
Monitor is not reset on capture. |
0b1 |
Monitor is reset on capture. |
If capture is not implemented for the CSU monitor type as indicated by MPAMF_CSUMON_IDR.HAS_CAPTURE = 0, this field is RAZ/WI.
Because the CSU monitor type produces a measurement rather than a count, it might not make sense to ever reset the value after a capture. If there is no reason to ever reset a CSU monitor, this field is RAZ/WI.
Overflow status.
Indicates whether the value of MSMON_CSU has overflowed.
OFLOW_STATUS | Meaning |
---|---|
0b0 |
No overflow has occurred. |
0b1 |
At least one overflow has occurred since this bit was last written to zero. |
If overflow is not possible for a CSU monitor in the implementation, this field is RAZ/WI.
Overflow Interrupt.
Indicates whether the value of MSMON_CSU has overflowed.
OFLOW_INTR | Meaning |
---|---|
0b0 |
No interrupt is signaled on an overflow of MSMON_CSU. |
0b1 |
On overflow, an implementation-specific interrupt is signaled. |
If OFLOW_INTR is not supported by the implementation, this field is RAZ/WI.
Freeze Monitor on Overflow.
Controls whether the value of MSMON_CSU freezes on an overflow.
OFLOW_FRZ | Meaning |
---|---|
0b0 |
Monitor count wraps on overflow. |
0b1 |
Monitor count freezes on overflow. The frozen value might be 0 or another value if the monitor overflowed with an increment larger than 1. |
If overflow is not possible for a CSU monitor in the implementation, this field is RAZ/WI.
Subtype.
A monitor can have other event matching criteria.
This field is not currently used for CSU monitors, but reserved for future use.
This field is RAZ/WI.
Reserved, RES0.
Match PMG.
Controls whether the monitor measures only storage used with PMG matching MSMON_CFG_CSU_FLT.PMG.
MATCH_PMG | Meaning |
---|---|
0b0 |
The monitor measures storage used with any PMG value. |
0b1 |
The monitor only measures storage used with the PMG value matching MSMON_CFG_CSU_FLT.PMG. |
If MATCH_PMG == 1 and MATCH_PARTID == 0, it is CONSTRAINED UNPREDICTABLE whether the monitor instance:
Match PARTID.
Controls whether the monitor measures only storage used with PARTID matching MSMON_CFG_CSU_FLT.PARTID.
MATCH_PARTID | Meaning |
---|---|
0b0 |
The monitor measures storage used with any PARTID value. |
0b1 |
The monitor only measures storage used with the PARTID value matching MSMON_CFG_CSU_FLT.PARTID. |
Reserved, RES0.
Monitor Type Code.
Constant type indicating the type of the monitor.
Read-only.
CSU monitor is TYPE = 0x43.
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_CFG_CSU_CTL must be accessible from the Non-secure and Secure address maps.
MSMON_CFG_CSU_CTL must be banked for the Secure and Non-secure address maps. The Secure instance accesses the cache storage usage monitor controls used for Secure PARTIDs, and the Non-secure instance accesses the cache storage usage monitor controls used for Non-secure PARTIDs.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM.any | MPAMF_BASE_s | 0x0818 | MSMON_CFG_CSU_CTL_s |
Access on this interface is RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM.any | MPAMF_BASE_ns | 0x0818 | MSMON_CFG_CSU_CTL_ns |
Access on this interface is RW.
27/03/2019 21:59; e5e4db499bf9867a4b93324c4dbac985d3da9376
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