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The PMCCIDSR characteristics are:
Contains the sampled value of CONTEXTIDR_EL1 and CONTEXTIDR_EL2, captured on reading PMU.PMPCSR.
This register is present only when FEAT_PMUv3_EXT is implemented. Otherwise, direct accesses to PMCCIDSR are RES0.
If FEAT_PCSRv8p2 is not implemented, the PC Sample-based Profiling Extension can be implemented in the external debug register space, as indicated by the value of EDDEVID.PCSample.
PMCCIDSR is a 64-bit register.
This register is part of the PMU block.
63 | 62 | 61 | 60 | 59 | 58 | 57 | 56 | 55 | 54 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 |
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 |
CONTEXTIDR_EL2 | |||||||||||||||||||||||||||||||
CONTEXTIDR_EL1 |
Context ID. The value of CONTEXTIDR_EL2 that is associated with the most recent PMU.PMPCSR sample. When the most recent PMU.PMPCSR sample is generated:
Because the value written to this field is an indirect read of CONTEXTIDR_EL2, it is CONSTRAINED UNPREDICTABLE whether this field is set to the original or new value if PMU.PMPCSR samples:
The reset behavior of this field is:
Context ID. The value of CONTEXTIDR that is associated with the most recent PMU.PMPCSR sample. When the most recent PMU.PMPCSR sample is generated:
Because the value written to this registser is an indirect read of CONTEXTIDR, it is CONSTRAINED UNPREDICTABLE whether this register is set to the original or new value if PMU.PMPCSR samples:
The reset behavior of this field is:
IMPLEMENTATION DEFINED extensions to external debug might make the value of this register UNKNOWN, see 'Permitted behavior that might make the PC Sample-based profiling registers UNKNOWN'.
Accesses to this register use the following encodings in the external debug interface:
PMCCIDSR can be accessed through the PMU block as follows:
Frame | Offset |
---|---|
PMU | 0x228 |
30/09/2022 15:57; 21c5a6dd0fdaf10a712e2f2d6fffbdbd66d4d96f
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