| Message ID | 20200108042018.571251-1-anarsoul@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | arm64: allwinner: a64: Enable DVFS on A64 | expand |
Hi, On Tue, Jan 07, 2020 at 08:20:14PM -0800, Vasily Khoruzhick wrote: > This series introduces new DTSI with operating points for A64, > adds cooling maps and thermal tripping points and enables DVFS > on all the supported A64-based boards Thanks for that new series. I'm not sure I've seen the answer, but how did you test that the OPPs were stable? So far, the only method that proved to be reliable was to run https://github.com/ssvb/cpuburn-arm/blob/master/cpufreq-ljt-stress-test Could you paste the result (one board should be enough) ? Thanks Maxime
On Wed, Jan 8, 2020 at 8:04 AM Maxime Ripard <mripard@kernel.org> wrote: > > Hi, > > On Tue, Jan 07, 2020 at 08:20:14PM -0800, Vasily Khoruzhick wrote: > > This series introduces new DTSI with operating points for A64, > > adds cooling maps and thermal tripping points and enables DVFS > > on all the supported A64-based boards > > Thanks for that new series. > > I'm not sure I've seen the answer, but how did you test that the OPPs > were stable? I've been using them for close to 2 years and haven't seen any issues so far. > So far, the only method that proved to be reliable was to run > https://github.com/ssvb/cpuburn-arm/blob/master/cpufreq-ljt-stress-test > > Could you paste the result (one board should be enough) ? Here is a run on Pine64-LTS: https://gist.github.com/anarsoul/23c361b42bcdf4f2e23624f74c4c94bc Regards, Vasily > Thanks > Maxime
On Wed, Jan 08, 2020 at 08:38:10AM -0800, Vasily Khoruzhick wrote: > On Wed, Jan 8, 2020 at 8:04 AM Maxime Ripard <mripard@kernel.org> wrote: > > > > Hi, > > > > On Tue, Jan 07, 2020 at 08:20:14PM -0800, Vasily Khoruzhick wrote: > > > This series introduces new DTSI with operating points for A64, > > > adds cooling maps and thermal tripping points and enables DVFS > > > on all the supported A64-based boards > > > > Thanks for that new series. > > > > I'm not sure I've seen the answer, but how did you test that the OPPs > > were stable? > > I've been using them for close to 2 years and haven't seen any > issues so far. I'm sure you did, but those issues can be easily masked depending on your config (and the default governor you have) and the workload. > > So far, the only method that proved to be reliable was to run > > https://github.com/ssvb/cpuburn-arm/blob/master/cpufreq-ljt-stress-test > > > > Could you paste the result (one board should be enough) ? > > Here is a run on Pine64-LTS: > https://gist.github.com/anarsoul/23c361b42bcdf4f2e23624f74c4c94bc Awesome, thanks! Maxime
On Tue, Jan 07, 2020 at 08:20:14PM -0800, Vasily Khoruzhick wrote: > This series introduces new DTSI with operating points for A64, > adds cooling maps and thermal tripping points and enables DVFS > on all the supported A64-based boards > > v2: - drop two commits that were merged > - mention where tripping points and OPP were taken from > - add new line after each node in OPP table > - split adding CPU clock and OPP into separate commits > - put operating points into their own dtsi Applied, thanks! Maxime
This series introduces new DTSI with operating points for A64, adds cooling maps and thermal tripping points and enables DVFS on all the supported A64-based boards v2: - drop two commits that were merged - mention where tripping points and OPP were taken from - add new line after each node in OPP table - split adding CPU clock and OPP into separate commits - put operating points into their own dtsi Vasily Khoruzhick (4): arm64: dts: allwinner: a64: add CPU clock to CPU0-3 nodes arm64: dts: allwinner: a64: add cooling maps and thermal tripping points arm64: dts: allwinner: a64: add dtsi with CPU operating points arm64: dts: allwinner: a64: enable DVFS .../allwinner/sun50i-a64-amarula-relic.dts | 17 +++++ .../dts/allwinner/sun50i-a64-bananapi-m64.dts | 17 +++++ .../dts/allwinner/sun50i-a64-cpu-opp.dtsi | 75 +++++++++++++++++++ .../dts/allwinner/sun50i-a64-nanopi-a64.dts | 17 +++++ .../dts/allwinner/sun50i-a64-olinuxino.dts | 17 +++++ .../dts/allwinner/sun50i-a64-orangepi-win.dts | 17 +++++ .../boot/dts/allwinner/sun50i-a64-pine64.dts | 17 +++++ .../dts/allwinner/sun50i-a64-pinebook.dts | 17 +++++ .../boot/dts/allwinner/sun50i-a64-sopine.dtsi | 17 +++++ .../boot/dts/allwinner/sun50i-a64-teres-i.dts | 17 +++++ arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 52 +++++++++++++ 11 files changed, 280 insertions(+) create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a64-cpu-opp.dtsi