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(parent: d0c0097) | patch
perf/imx_ddr: Add system PMU identifier for userspace
authorJoakim Zhang <qiangqing.zhang@nxp.com>
Mon, 30 Nov 2020 11:42:02 +0000 (19:42 +0800)
committerWill Deacon <will@kernel.org>
Wed, 9 Dec 2020 14:14:02 +0000 (14:14 +0000)
commit881b0520504a2e028a28ddacc05c26e46f21d483
treeec0085b30119f45abddc4bc1dcb50cac77285076tree | snapshot
parentd0c00977a16a1c785b3e9a3b95026ea5ac27cfb5commit | diff
perf/imx_ddr: Add system PMU identifier for userspace

The DDR Perf for i.MX8 is a system PMU whose AXI ID would different from
SoC to SoC. Need expose system PMU identifier for userspace which refer
to /sys/bus/event_source/devices/<PMU DEVICE>/identifier.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/20201130114202.26057-3-qiangqing.zhang@nxp.com
Signed-off-by: Will Deacon <will@kernel.org>
drivers/perf/fsl_imx8_ddr_perf.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git