Messages in this thread |  | | Subject | Re: [PATCH v3] drivers/perf: Add support for ARMv8.3-SPE | From | Suzuki K Poulose <> | Date | Fri, 27 Nov 2020 12:03:35 +0000 |
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On 11/27/20 6:03 AM, Wei Li wrote: > Armv8.3 extends the SPE by adding: > - Alignment field in the Events packet, and filtering on this event > using PMSEVFR_EL1. > - Support for the Scalable Vector Extension (SVE). > > The main additions for SVE are: > - Recording the vector length for SVE operations in the Operation Type > packet. It is not possible to filter on vector length. > - Incomplete predicate and empty predicate fields in the Events packet, > and filtering on these events using PMSEVFR_EL1. > > Update the check of pmsevfr for empty/partial predicated SVE and > alignment event in SPE driver. For adaption by the version of SPE, > expose 'pmsver' as cap attribute to userspace. > > Signed-off-by: Wei Li <liwei391@huawei.com>
nit: Do we need to update the Kconfig help text too ? Right now that says :
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tristate "Enable support for the ARMv8.2 Statistical Profiling Extension"" ....
help Enable perf support for the ARMv8.2 Statistical Profiling Extension, which provides periodic sampling of operations in
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Suzuki
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