From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: john.garry@huawei.com, will@kernel.org, mark.rutland@arm.com,
robh+dt@kernel.org, shawnguo@kernel.org
Cc: linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH V2 0/3] perf/imx_ddr: Add system PMU support
Date: Wed, 20 May 2020 10:56:16 +0800 [thread overview]
Message-ID: <20200520025619.687-1-qiangqing.zhang@nxp.com> (raw)
The patch set adds system PMU support for i.MX8 DDR Perf.
The sysfs location for userspace to get the PMU identifier under the
directory:
/sys/bus/event_source/devices/<PMU DEVICE>/identifier
ChangeLogs:
V1 -> V2:
*add property in dt instead of changing compatible string.
Joakim Zhang (3):
bindings: perf: imx8_ddr: add identifier property
perf/imx_ddr: Add system PMU identifier for userspace
arm64: dts: imx8/8mm/8mn/8mq: add identifier for DDR perf
.../devicetree/bindings/perf/fsl-imx-ddr.txt | 3 ++
arch/arm64/boot/dts/freescale/imx8mm.dtsi | 1 +
arch/arm64/boot/dts/freescale/imx8mn.dtsi | 1 +
arch/arm64/boot/dts/freescale/imx8mq.dtsi | 1 +
arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 1 +
drivers/perf/fsl_imx8_ddr_perf.c | 29 +++++++++++++++++++
6 files changed, 36 insertions(+)
--
2.17.1
next reply other threads:[~2020-05-20 2:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 2:56 Joakim Zhang [this message]
2020-05-20 2:56 ` [PATCH V2 1/3] bindings: perf: imx8_ddr: add identifier property Joakim Zhang
2020-05-20 2:56 ` [PATCH V2 2/3] perf/imx_ddr: Add system PMU identifier for userspace Joakim Zhang
2020-05-20 7:41 ` Will Deacon
2020-05-20 2:56 ` [PATCH V2 3/3] arm64: dts: imx8/8mm/8mn/8mq: add identifier for DDR perf Joakim Zhang
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