Messages in this thread | | | Date | Fri, 23 Nov 2012 15:10:25 +0100 | From | Robert Richter <> | Subject | Re: [PATCH 1/1] ARM: oprofile: add A5/A7/A15 entries in op_perf_name |
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On 20.11.12 17:08:17, Will Deacon wrote: > > The advantage of a solution where userland updates cpu_type is that we > > never need to update the kernel anymore. This means, cpu detection can > > be part of the tools. > > True, but the kernel-side perf code still needs updating to support the new > CPU so I don't think you win much.
You also need perf support to use operf. If oprofile can update cpu_type, the oprofile kernel interface would work for new hardware without changes. We have support for both then, operf and opcontrol.
-Robert
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