[V2,0/3] perf/imx_ddr: Add system PMU support

Message ID	20200520025619.687-1-qiangqing.zhang@nxp.com
Headers	show Return-Path: <SRS0=Re5X=7C=vger.kernel.org=devicetree-owner@kernel.org> 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 Message-Id: <20200520025619.687-1-qiangqing.zhang@nxp.com> Content-Type: text/plain MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Sender: devicetree-owner@vger.kernel.org Precedence: bulk
Series	perf/imx_ddr: Add system PMU support \| expand [V2,0/3] perf/imx_ddr: Add system PMU support [V2,2/3] perf/imx_ddr: Add system PMU identifier for userspace

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20200520025619.687-1-qiangqing.zhang@nxp.com

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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
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Series

perf/imx_ddr: Add system PMU support | expand

Message

Joakim Zhang May 20, 2020, 2:56 a.m. UTC

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(+)