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| author | Xu Yang <xu.yang_2@nxp.com> | 2022-05-24 12:07:02 +0800 |
|---|---|---|
| committer | Xu Yang <xu.yang_2@nxp.com> | 2022-07-26 17:30:41 +0800 |
| commit | bb5128a7bac7103238916e83cffa3e00e356089f (patch) | |
| tree | 61c9194b5d9fb55d3b4bb78328e93cbcbaebc004 /drivers/perf/Kconfig | |
| parent | 16600080ac6d3e1cca61c04103e79b3f4094046d (diff) | |
MLK-25920-1 perf: imx9_ddr: add driver for i.MX9 DDR PerfMon
Add driver for i.MX9 DDR PerfMon.
Usage:
1. cycles event
# perf stat -a -I 1000 -e imx9_ddr0/cycles,counter=0/ or perf stat -a -I -e 1000 imx9_ddr0/cycles/
2. reference events
# perf stat -a -I 1000 -e imx9_ddr0/ddrc_ddrc1_rmw_for_ecc,counter=X/
3. counter specific events, such as counter 5
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pmon_ld_rdq1,counter=5/
Axi filtering feature:
4. for read transaction:
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_trans_filt,counter=2,axi_mask=ID_MASK,axi_id=ID/
5. for write transaction:
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_wr_trans_filt,counter=3,axi_mask=ID_MASK,axi_id=ID/
6. for read beat:
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_beat_filt,counter=4,axi_mask=ID_MASK,axi_id=ID/
For example (for cortex-a55):
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_trans_filt,counter=2,axi_mask=0xe00f,axi_id=0x0006/
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_wr_trans_filt,counter=3,axi_mask=0xe00f,axi_id=0x0006/
# perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_beat_filt,counter=4,axi_mask=0xe00f,axi_id=0x0006/
v2:
- using platform_get_irq()
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.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 77522e5efe11..1b5ca02e5ded 100644 --- a/drivers/perf/Kconfig +++ b/drivers/perf/Kconfig @@ -86,6 +86,14 @@ config FSL_IMX8_DDR_PMU can give information about memory throughput and other related events. +config FSL_IMX9_DDR_PMU + tristate "Freescale i.MX9 DDR perf monitor" + depends on ARCH_MXC + help + Provides support for the DDR performance monitor in i.MX9, which + can give information about memory throughput and other related + events. + config QCOM_L2_PMU bool "Qualcomm Technologies L2-cache PMU" depends on ARCH_QCOM && ARM64 && ACPI |