Hello Heiko, ARM guys When Jay first submitted the rk3399.dtsi upstream <https://patchwork.kernel.org/patch/8885821/> he had the PMU node in there, but then took it out because the upstream binding wasn't done yet. It looks as if the upstream stuff has landed, since in linux/master I see: 287e9357abcc DT/arm,gic-v3: Documment PPI partition support e3825ba1af3a irqchip/gic-v3: Add support for partitioned PPIs 9e2c986cb460 irqchip: Add per-cpu interrupt partitioning library 222df54fd8b7 genirq: Allow the affinity of a percpu interrupt to be set/retrieved 651e8b54abde irqdomain: Allow domain matching on irq_fwspec This series patches add to support the rk3399 SoCs PMU. I pick up the https://patchwork.kernel.org/patch/9209369/. As do some tests with ChromeOs for my rk3399 board. Tested with next-20160905 kernel on rk3399 board. https://github.com/Caesar-github/rockchip/tree/rk3399/pmu-upstream localhost / # perf list List of pre-defined events (to be used in -e): cpu-cycles OR cycles [Hardware event] instructions [Hardware event] cache-references [Hardware event] cache-misses [Hardware event] branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] ... perf stat --cpu 0/1/2/3..... to minitor e.g. cpu0; localhost / # perf stat --cpu 0 Performance counter stats for 'CPU(s) 0': 3374.917571 task-clock (msec) # 1.001 CPUs utilized [100.00%] 20 context-switches # 0.006 K/sec [100.00%] 2 cpu-migrations # 0.001 K/sec [100.00%] 55 page-faults # 0.016 K/sec 7151843 cycles # 0.002 GHz [100.00%] <not supported> stalled-cycles-frontend <not supported> stalled-cycles-backend 4272536 instructions # 0.60 insns per cycle [100.00%] 568406 branches # 0.168 M/sec [100.00%] 65652 branch-misses # 11.55% of all branches Also, 'perf top' to monitor the PMU interrupts from cpus -Caesar Changes in v3: - update with the lastest next kernel(20160905). - add Mark's ACK for PATCH[1/2]. - updated on next kernel(20160905). - add the Mark's ACK for PATCH[2/2]. Changes in v2: - AS Mark comments on https://patchwork.kernel.org/patch/9209369/ remove the interrupt-affinity property, we need depend on Marc' perf code on https://patchwork.kernel.org/patch/9209369/. Caesar Wang (2): arm64: dts: rockchip: change all interrupts cells for 4 on rk3399 SoCs arm64: dts: rockchip: support the pmu node for rk3399 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 122 ++++++++++++++++++------------- 1 file changed, 71 insertions(+), 51 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
