On 08/04/16 11:31, Suzuki K Poulose wrote: > On 08/04/16 11:24, Marc Zyngier wrote: >> On 08/04/16 10:58, Suzuki K Poulose wrote: >>> On 07/04/16 18:31, Marc Zyngier wrote: >>> >>>>> + All system register encodings above use the form >>>>> + >>>>> + Op0, Op1, CRn, CRm, Op2. >>>>> + >>>>> + Note that some of the encodings listed above include >>>>> + the system register space reserved for the following >>>>> + identification registers which may appear in future revisions >>>>> + of the ARM architecture beyond ARMv8.0. >>>>> + This space includes: >>>>> + ID_AA64PFR[2-7]_EL1 >>>>> + ID_AA64DFR[2-3]_EL1 >>>>> + ID_AA64AFR[2-3]_EL1 >>>>> + ID_AA64ISAR[2-7]_EL1 >>>>> + ID_AA64MMFR[2-7]_EL1 >>> >>> >>> AFAIK, the id space is unassigned. So the naming above could cause confusion >>> if the register is named something else. >> >> It is reserved *at the moment*, but already has a defined behaviour. My > > Absolutely, they do need to be RAZ. My point was assigning names to the reserved > space where the names are unassigned. Sorry - I misread your statement. It makes a lot more sense now that the coffee has trickled in. We're in violent agreement! ;-) Thanks, M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
