diff options
| author |   Frank Li <frank.li@nxp.com> | 2019-05-01 18:43:29 +0000 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2019-06-13 11:07:57 +0100 |
| commit | 9a66d36cc7ace8062bd703d1edfb99437a2ddf2b (patch) | |
| tree | e3321a1edc901db79bff1ed81fbeb0ddcfbe89e9 /drivers/perf/Kconfig | |
| parent | dt-bindings: perf: imx8-ddr: add imx8qxp ddr performance monitor (diff) | |
| download | linux-dev-9a66d36cc7ace8062bd703d1edfb99437a2ddf2b.tar.xz linux-dev-9a66d36cc7ace8062bd703d1edfb99437a2ddf2b.zip | |
drivers/perf: imx_ddr: Add DDR performance counter support to perf
Add DDR performance monitor support for iMX8QXP. The PMU consists of 3
programmable event counters and a single dedicated cycle counter.
Example usage:
$ perf stat -a -e \
imx8_ddr0/read-cycles/,imx8_ddr0/write-cycles/,imx8_ddr0/precharge/ ls
- or -
$ perf stat -a -e \
imx8_ddr0/cycles/,imx8_ddr0/read-access/,imx8_ddr0/write-access/ ls
Other events are supported, and advertised via perf list.
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[will: rewrote commit message/kconfig and used #defines for dev/cpuhp names]
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf/Kconfig')
| -rw-r--r-- | drivers/perf/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig index e4221a107dca..09ae8a970880 100644 --- a/drivers/perf/Kconfig +++ b/drivers/perf/Kconfig @@ -71,6 +71,14 @@ config ARM_DSU_PMU system, control logic. The PMU allows counting various events related to DSU. +config FSL_IMX8_DDR_PMU + tristate "Freescale i.MX8 DDR perf monitor" + depends on ARCH_MXC + help + Provides support for the DDR performance monitor in i.MX8, which + can give information about memory throughput and other related + events. + config HISI_PMU bool "HiSilicon SoC PMU" depends on ARM64 && ACPI |