Robin Murphy 2c06e0e010 perf/arm-cmn: Fix DTC reset ... [ Upstream commit 71746c995c ] It turns out that my naive DTC reset logic fails to work as intended, since, after checking with the hardware designers, the PMU actually needs to be fully enabled in order to correctly clear any pending overflows. Therefore, invert the sequence to start with turning on both enables so that we can reliably get the DTCs into a known state, then moving to our normal counters-stopped state from there. Since all the DTM counters have already been unpaired during the initial discovery pass, we just need to additionally reset the cycle counters to ensure that no other unexpected overflows occur during this period. Fixes: 0ba64770a2 ("perf: Add Arm CMN-600 PMU driver") Reported-by: Geoff Blake <blakgeof@amazon.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/0ea4559261ea394f827c9aee5168c77a60aaee03.1684946389.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-07-23 13:46:46 +02:00
..
hisilicon	perf/hisi: Constify static attribute_group structs	2021-06-08 12:49:54 +01:00
Kconfig	…
Makefile	…
arm-cci.c	drivers/perf: arm-cci: Fix checkpatch spacing error	2021-05-25 18:59:23 +01:00
arm-ccn.c	…
arm-cmn.c	perf/arm-cmn: Fix DTC reset	2023-07-23 13:46:46 +02:00
arm_dmc620_pmu.c	perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init()	2022-12-31 13:13:58 +01:00
arm_dsu_pmu.c	perf: arm_dsu: Fix hotplug callback leak in dsu_pmu_init()	2022-12-31 13:13:58 +01:00
arm_pmu.c	arm_pmu: Validate single/group leader events	2022-04-27 14:39:00 +02:00
arm_pmu_acpi.c	…
arm_pmu_platform.c	perf/arm_pmu_platform: fix tests for platform_get_irq() failure	2022-09-20 12:39:45 +02:00
arm_smmuv3_pmu.c	perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()	2022-12-31 13:13:58 +01:00
arm_spe_pmu.c	drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CX	2022-08-17 14:23:14 +02:00
fsl_imx8_ddr_perf.c	perf/imx_ddr: Fix undefined behavior due to shift overflowing the constant	2022-04-20 09:34:18 +02:00
qcom_l2_pmu.c	perf: qcom_l2_pmu: fix an incorrect NULL check on list iterator	2022-04-13 20:59:24 +02:00
qcom_l3_pmu.c	drivers/perf: Simplify EVENT ATTR macro in qcom_l3_pmu.c	2021-06-11 11:18:40 +01:00
thunderx2_pmu.c	drivers/perf: Remove redundant dev_err call in tx2_uncore_pmu_init_dev()	2021-05-25 18:57:19 +01:00
xgene_pmu.c	drivers/perf: Simplify EVENT ATTR macro in xgene_pmu.c	2021-06-11 11:18:40 +01:00