Hi all, this is a repost of version 7 of "CPUs capacity information for heterogeneous systems" patchset  (please refer to previous postings to get some context). I only added Juno r1 dts, as discussed off-line with Sudeep meanwhile (no code changes at all, so that's why I'm saying this is a repost).
I'm reposting as I didn't receive any comment (despite pinging people) on the original v7 posting (apart from Vincent acking patches 2 and 4, thanks!). I then waited until merge window for 4.9 was closed. I'm thus now assuming that everybody is OK with the patches and that they can be queued for 4.10 (we certainly need this plumbing at this point). Please speak if my assumption is wrong (and provide feedback! :). Otherwise I'm going to: - use Russell's patching system for patches 2 and 8 - ask Sudeep to pull patches 3,5,6 and 7 - ask Catalin/Will to pull patches 1,4 and 9 Do you think we might get into trouble splitting the merge process this way? Please let me know how to proceed otherwise. As per orginal v7 posting, patches high level description: o 01/09 introduces documentation for the new optional DT binding o [02-07]/09 add cpu-capacity attribute to TC2, Juno, Juno r1 and Juno r2 DTs and provide parsing of such information at boot time o [08-09]/09 introduce sysfs attribute In case you would like to test this out, I updated the branch here: git://linux-arm.org/linux-jl.git upstream/default_caps_v7 This branch contains additional patches, useful to better understand how CPU capacity information is actually used by the scheduler. These patches also form the basis for Morten/Dietmar's "Clean-ups and asymmetric cpu capacity support" series  (and the EAS stack in general). Best, - Juri  v1 - https://lkml.org/lkml/2015/11/23/391 v2 - https://lkml.org/lkml/2016/1/8/417 v3 - https://lkml.org/lkml/2016/2/3/405 v4 - https://lkml.org/lkml/2016/3/18/350 v5 - https://lkml.org/lkml/2016/6/15/291 v6 - https://lkml.org/lkml/2016/7/19/419 v7 - https://lkml.org/lkml/2016/9/5/409  https://lkml.org/lkml/2016/10/14/312 Juri Lelli (9): Documentation: arm: define DT cpu capacity-dmips-mhz bindings arm: parse cpu capacity-dmips-mhz from DT arm, dts: add TC2 cpu capacity-dmips-mhz information arm64: parse cpu capacity-dmips-mhz from DT arm64, dts: add Juno cpu capacity-dmips-mhz information arm64, dts: add Juno r1 cpu capacity-dmips-mhz information arm64, dts: add Juno r2 cpu capacity-dmips-mhz information arm: add sysfs cpu_capacity attribute arm64: add sysfs cpu_capacity attribute .../devicetree/bindings/arm/cpu-capacity.txt | 236 +++++++++++++++++++++ Documentation/devicetree/bindings/arm/cpus.txt | 10 + arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 5 + arch/arm/kernel/topology.c | 229 +++++++++++++++++++- arch/arm64/boot/dts/arm/juno-r1.dts | 6 + arch/arm64/boot/dts/arm/juno-r2.dts | 6 + arch/arm64/boot/dts/arm/juno.dts | 6 + arch/arm64/kernel/topology.c | 232 +++++++++++++++++++- 8 files changed, 728 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/cpu-capacity.txt -- 2.10.0