Messages in this thread | | | Date | Fri, 6 Nov 2015 10:24:30 +0100 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH 0/3]perf/core: extend perf_reg and perf_sample_regs_intr |
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On Fri, Nov 06, 2015 at 12:57:17PM +0530, Madhavan Srinivasan wrote: > > > On Thursday 05 November 2015 06:37 PM, Peter Zijlstra wrote: > > On Thu, Nov 05, 2015 at 02:16:15AM +0530, Madhavan Srinivasan wrote: > >> Second patch updates struct arch_misc_reg for arch/powerpc with pmu registers > >> and adds offsetof macro for the same. It extends perf_reg_value() > >> to use reg idx to decide on struct to return value from. > > Why; what's in those regs? > > Was out and did not have access to mail, so missed to respond in time. > > In current implementation of patch 2, have added > few pmu control/status and counter registers, > which give additional information about the PMU context > for the sample.
Yes, I saw that, you still haven't answered the question though. What is in those regs? Why is exposing that information like this the best option.
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