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Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src
Date 2017-03-13 14:00 +0100
Message-ID <tkxJT-Fd-15@gated-at.bofh.it> (permalink)
References (1 earlier) <thYnh-6U9-45@gated-at.bofh.it> <thYZY-7uY-15@gated-at.bofh.it> <timIW-7Bl-23@gated-at.bofh.it> <timIW-7Bl-21@gated-at.bofh.it> <tkwb8-8aF-13@gated-at.bofh.it>
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On Mon, Mar 13, 2017 at 04:45:51PM +0530, Madhavan Srinivasan wrote:
> >  - should you not have fixed this in the tool only? This patch
> >    effectively breaks ABI on big-endian architectures.
> 
> IIUC, we are the first BE user for this feature
> (Kindly correct me if I am wrong), so technically we
> are not breaking ABI here :) .  But let me also look  at
> the dynamic conversion part.

Huh? PPC hasn't yet implemented this? Then why are you fixing it?

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[PATCH v2 0/6] powerpc/perf: Export memory hierarchy level Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 11:50 +0100
  [PATCH v2 2/6] powerpc/perf: Export memory hierarchy info to user space Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 11:50 +0100
    Re: [PATCH v2 2/6] powerpc/perf: Export memory hierarchy info to  user space Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> - 2017-03-13 20:30 +0100
  [PATCH v2 3/6] powerpc/perf: Support to export MMCRA[TEC*] field to userspace Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 11:50 +0100
  [PATCH v2 5/6] powerpc/perf: Support to export SIERs bit in Power9 Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 11:50 +0100
  [PATCH v2 1/6] powerpc/perf: Define big-endian version of perf_mem_data_src Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 11:50 +0100
    Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Peter Zijlstra <peterz@infradead.org> - 2017-03-06 12:30 +0100
      RE: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src David Laight <David.Laight@ACULAB.COM> - 2017-03-06 16:10 +0100
        Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Peter Zijlstra <peterz@infradead.org> - 2017-03-06 16:30 +0100
      Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Peter Zijlstra <peterz@infradead.org> - 2017-03-07 13:50 +0100
        Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-13 12:20 +0100
          Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Peter Zijlstra <peterz@infradead.org> - 2017-03-13 14:00 +0100
      Re: [PATCH v2 1/6] powerpc/perf: Define big-endian version of  perf_mem_data_src Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-07 13:50 +0100
  [PATCH v2 6/6] powerpc/perf: Add Power8 mem_access event to sysfs Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 15:10 +0100
  [PATCH v2 4/6] powerpc/perf: Support to export SIERs bit in Power8 Madhavan Srinivasan <maddy@linux.vnet.ibm.com> - 2017-03-06 16:00 +0100

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