From: Caesar Wang <wxt@rock-chips.com>
To: Marc Zyngier <marc.zyngier@arm.com>, Heiko Stuebner <heiko@sntech.de>
Cc: dianders@chromium.org, mark.rutland@arm.com,
linux-rockchip@lists.infradead.org, cf@rock-chips.com,
huangtao@rock-chips.com, linux-arm-kernel@lists.infradead.org,
Caesar Wang <wxt@rock-chips.com>,
devicetree@vger.kernel.org, David Wu <david.wu@rock-chips.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Brian Norris <briannorris@chromium.org>,
linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
Jianqun Xu <jay.xu@rock-chips.com>,
Rob Herring <robh+dt@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Xing Zheng <zhengxing@rock-chips.com>
Subject: [PATCH v2 0/2] arm64: dts: rockchip: Support PMU for rk3399 SoCs
Date: Wed, 6 Jul 2016 16:05:55 +0800 [thread overview]
Message-ID: <1467792357-9749-1-git-send-email-wxt@rock-chips.com> (raw)
Hello Heiko, Marc & 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 linus master 4.7-rc6 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 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 | 118 ++++++++++++++++++-------------
1 file changed, 69 insertions(+), 49 deletions(-)
--
1.9.1
next reply other threads:[~2016-07-06 8:06 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-06 8:05 Caesar Wang [this message]
2016-07-06 8:05 ` [PATCH v2 1/2] arm64: dts: rockchip: change all interrupts cells for 4 on rk3399 SoCs Caesar Wang
2016-07-06 8:05 ` [PATCH v2 2/2] arm64: dts: rockchip: support the pmu node for rk3399 Caesar Wang
2016-07-06 11:24 ` [PATCH v2 0/2] arm64: dts: rockchip: Support PMU for rk3399 SoCs Mark Rutland
2016-07-14 1:14 ` Caesar Wang
2016-09-03 0:13 ` Caesar Wang
2016-09-04 22:09 ` Heiko Stuebner
2016-09-04 22:47 ` Caesar Wang
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