On 12/04/2017 08:27 PM, William Cohen wrote: > The powerpc cpuid information includes chip revision information. > Changes between chip revisions are usually minor bug fixes and usually > do not affect the operation of the performance monitoring hardware. > The original mapfile.csv matching requires enumerating every possible > cpuid string. When a new minor chip revision is produced a new entry > has to be added to the mapfile.csv and the code recompiled to allow > perf to have the implementation specific perf events for this new > minor revision. For users of various distibutions of Linux having to > wait for a new release of the kernel's perf tool to be built with > these trivial patches is inconvenient. >
Tested-by: Ravi Bangoria <ravi.bango...@linux.vnet.ibm.com> Thanks, Ravi
