Re: [PATCH 00/11] arm: perf: add support for heterogeneous PMUs

2014-11-17 Thread Will Deacon
On Fri, Nov 07, 2014 at 04:25:25PM +, Mark Rutland wrote: > In systems with heterogeneous CPUs (e.g. big.LITTLE) the associated PMUs > also differ in terms of the supported set of events, the precise > behaviour of each of those events, and the number of event counters. > Thus it is not possibl

[PATCH 00/11] arm: perf: add support for heterogeneous PMUs

2014-11-07 Thread Mark Rutland
In systems with heterogeneous CPUs (e.g. big.LITTLE) the associated PMUs also differ in terms of the supported set of events, the precise behaviour of each of those events, and the number of event counters. Thus it is not possible to expose these PMUs as a single logical PMU. Instead a logical PMU