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linux/drivers/perf
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Ilkka Koskinen 50572064ec perf/arm-cmn: Workaround AmpereOneX errata AC04_MESH_1 (incorrect child count) 
AmpereOneX mesh implementation has a bug in HN-P nodes that makes them
report incorrect child count. The failing crosspoints report 8 children
while they only have two.

When the driver tries to access the inexistent child nodes, it believes it
has reached an invalid node type and probing fails. The workaround is to
ignore those incorrect child nodes and continue normally.

Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
[ rm: rewrote simpler generalised version ]
Tested-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/ce4b1442135fe03d0de41859b04b268c88c854a3.1707498577.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-02-09 17:14:04 +00:00
..
amlogic perf/amlogic: add missing MODULE_DEVICE_TABLE 2023-10-17 12:36:12 +01:00
arm_cspmu perf: arm_cspmu: drop redundant acpi_dev_uid_to_integer() 2023-12-06 18:02:37 +01:00
hisilicon drivers/perf: hisi: Fix some event id for HiSilicon UC pmu 2023-12-05 12:35:41 +00:00
alibaba_uncore_drw_pmu.c driver/perf: Add identifier sysfs file for Yitian 710 DDR 2023-07-27 12:57:04 +01:00
apple_m1_cpu_pmu.c arm: pmu: Move error message and -EOPNOTSUPP to individual PMUs 2023-12-12 09:46:22 +00:00
arm_dmc620_pmu.c Revert "perf/arm_dmc620: Remove duplicate format attribute #defines" 2023-12-13 09:47:52 +00:00
arm_dsu_pmu.c drivers/perf: arm_dsu_pmu: Remove kerneldoc-style comment syntax 2023-12-12 09:26:38 +00:00
arm_pmu_acpi.c arm_pmu: acpi: Add a representative platform device for TRBE 2023-08-18 18:07:10 +01:00
arm_pmu_platform.c drivers/perf: Explicitly include correct DT includes 2023-07-27 13:02:23 +01:00
arm_pmu.c arm: pmu: Move error message and -EOPNOTSUPP to individual PMUs 2023-12-12 09:46:22 +00:00
arm_pmuv3.c arm64: perf: Add support for event counting threshold 2023-12-12 09:46:22 +00:00
arm_smmuv3_pmu.c perf/smmuv3: Add MODULE_ALIAS for module auto loading 2023-08-15 12:53:04 +01:00
arm_spe_pmu.c arm: pmu: Share user ABI format mechanism with SPE 2023-12-12 09:46:22 +00:00
arm-cci.c drivers/perf: Explicitly include correct DT includes 2023-07-27 13:02:23 +01:00
arm-ccn.c drivers/perf:Directly use ida_alloc()/free() 2022-06-23 15:44:45 +01:00
arm-cmn.c perf/arm-cmn: Workaround AmpereOneX errata AC04_MESH_1 (incorrect child count) 2024-02-09 17:14:04 +00:00
cxl_pmu.c perf: CXL: fix mismatched cpmu event opcode 2024-02-09 16:52:33 +00:00
dwc_pcie_pmu.c drivers/perf: add DesignWare PCIe PMU driver 2023-12-13 15:35:28 +00:00
fsl_imx8_ddr_perf.c perf: fsl_imx8_ddr: Add driver support for i.MX8DXL DDR Perf 2023-12-05 14:12:08 +00:00
fsl_imx9_ddr_perf.c drivers/perf: Remove usage of the deprecated ida_simple_xx() API 2023-12-12 09:20:38 +00:00
Kconfig drivers/perf: add DesignWare PCIe PMU driver 2023-12-13 15:35:28 +00:00
Makefile drivers/perf: add DesignWare PCIe PMU driver 2023-12-13 15:35:28 +00:00
marvell_cn10k_ddr_pmu.c drivers/perf: Explicitly include correct DT includes 2023-07-27 13:02:23 +01:00
marvell_cn10k_tad_pmu.c drivers/perf: Explicitly include correct DT includes 2023-07-27 13:02:23 +01:00
qcom_l2_pmu.c perf: qcom_l2_pmu: Make l2_cache_pmu_probe_cluster() more robust 2023-06-05 15:01:27 +01:00
qcom_l3_pmu.c perf: qcom: use acpi_device_uid() for fetching _UID 2023-10-20 19:21:14 +02:00
riscv_pmu_legacy.c drivers: perf: Implement perf event mmap support in the legacy backend 2023-08-16 07:28:19 -07:00
riscv_pmu_sbi.c riscv: Rearrange hwcap.h and cpufeature.h 2023-11-09 10:15:51 -08:00
riscv_pmu.c drivers: perf: Fix panic in riscv SBI mmap support 2023-10-12 11:46:35 -07:00
thunderx2_pmu.c perf: Replace acpi_bus_get_device() 2022-02-08 15:14:53 +00:00
xgene_pmu.c drivers/perf: xgene: Use device_get_match_data() 2023-10-17 12:43:13 +01:00