Messages in this thread | | | Subject | Re: [PATCH v3 4/5] ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM | From | Vladimir Murzin <> | Date | Mon, 21 May 2018 10:34:19 +0100 |
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On 18/05/18 15:39, Marc Zyngier wrote: > +static inline int read_pmuver(void) > +{ > + /* PMUVers is not a signed field */ > + u32 dfr0 = read_cpuid_ext(CPUID_EXT_DFR0); > + return (dfr0 >> 24) & 0xf; > +}
Should we rule out versions prior v3 here or in __armv8pmu_probe_pmu()?
Thanks Vladimir
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