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| author | Xu Yang <xu.yang_2@nxp.com> | 2023-04-18 18:29:08 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-06-09 12:01:10 +0100 |
| commit | 55691f99d417084305e575c477f06556f93dfb0b (patch) | |
| tree | 43f2fdd9fee64654d35f96f9c9842f10ba29db67 /drivers/perf/Makefile | |
| parent | d2e3bb51281875be23cb4726a59b03d0a53eb0d3 (diff) | |
| download | lwn-55691f99d417084305e575c477f06556f93dfb0b.tar.gz lwn-55691f99d417084305e575c477f06556f93dfb0b.zip | |
drivers/perf: imx_ddr: Add support for NXP i.MX9 SoC DDRC PMU driver
Add ddr performance monitor support for i.MX93.
There are 11 counters for ddr performance events.
- Counter 0 is a 64-bit counter that counts only clock cycles.
- Counter 1-10 are 32-bit counters that can monitor counter-specific
events in addition to counting reference events.
For example:
perf stat -a -e imx9_ddr0/ddrc_pm_1,counter=1/,imx9_ddr0/ddrc_pm_2,counter=2/ ls
Besides, this ddr pmu support AXI filter capability. It's implemented as
counter-specific events. It now supports read transaction, write transaction
and read beat events which corresponding respecitively to counter 2, 3 and 4.
axi_mask and axi_id need to be as event parameters.
For example:
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_trans_filt,counter=2,axi_mask=ID_MASK,axi_id=ID/
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_wr_trans_filt,counter=3,axi_mask=ID_MASK,axi_id=ID/
perf stat -a -I 1000 -e imx9_ddr0/eddrtq_pm_rd_beat_filt,counter=4,axi_mask=ID_MASK,axi_id=ID/
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230418102910.2065651-1-xu.yang_2@nxp.com
[will: Remove redundant error message on platform_get_irq() failure]
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/Makefile')
| -rw-r--r-- | drivers/perf/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile index dabc859540ce..5cfe8954c250 100644 --- a/drivers/perf/Makefile +++ b/drivers/perf/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_ARM_PMU_ACPI) += arm_pmu_acpi.o obj-$(CONFIG_ARM_PMUV3) += arm_pmuv3.o obj-$(CONFIG_ARM_SMMU_V3_PMU) += arm_smmuv3_pmu.o obj-$(CONFIG_FSL_IMX8_DDR_PMU) += fsl_imx8_ddr_perf.o +obj-$(CONFIG_FSL_IMX9_DDR_PMU) += fsl_imx9_ddr_perf.o obj-$(CONFIG_HISI_PMU) += hisilicon/ obj-$(CONFIG_QCOM_L2_PMU) += qcom_l2_pmu.o obj-$(CONFIG_QCOM_L3_PMU) += qcom_l3_pmu.o |