c12c0288e3
AXI filtering is used by events 0x41 and 0x42 to count reads or writes with an ARID or AWID matching a specified filter. The filter is exposed to userspace as an (ID, MASK) pair, where each set bit in the mask causes the corresponding bit in the ID to be ignored when matching against the ID of memory transactions for the purposes of incrementing the counter. For example: # perf stat -a -e imx8_ddr0/axid-read,axi_mask=0xff,axi_id=0x800/ cmd will count all read transactions from AXI IDs 0x800 - 0x8ff. If the 'axi_mask' is omitted, then it is treated as 0x0 which means that the 'axi_id' will be matched exactly. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Signed-off-by: Will Deacon <will@kernel.org> |
||
|---|---|---|
| .. | ||
| hisilicon | ||
| arm-cci.c | ||
| arm-ccn.c | ||
| arm_dsu_pmu.c | ||
| arm_pmu.c | ||
| arm_pmu_acpi.c | ||
| arm_pmu_platform.c | ||
| arm_smmuv3_pmu.c | ||
| arm_spe_pmu.c | ||
| fsl_imx8_ddr_perf.c | ||
| Kconfig | ||
| Makefile | ||
| qcom_l2_pmu.c | ||
| qcom_l3_pmu.c | ||
| thunderx2_pmu.c | ||
| xgene_pmu.c | ||