Messages in this thread | | | From | Joakim Zhang <> | 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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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
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