Junhao He 479b868e57 drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09 ... [ Upstream commit e10b6976f6 ] HiSilicon UC PMU v2 suffers the erratum 162700402 that the PMU counter cannot be set due to the lack of clock under power saving mode. This will lead to error or inaccurate counts. The clock can be enabled by the PMU global enabling control. This patch tries to fix this by set the UC PMU enable before set event period to turn on the clock, and then restore the UC PMU configuration. The counter register can hold its value without a clock. Signed-off-by: Junhao He <hejunhao3@huawei.com> Reviewed-by: Yicong Yang <yangyicong@hisilicon.com> Link: https://lore.kernel.org/r/20240227125231.53127-1-hejunhao3@huawei.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-13 13:10:07 +02:00
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hisi_pcie_pmu.c	drivers/perf: hisi_pcie: Initialize event->cpu only on success	2023-10-24 12:30:45 +01:00
hisi_uncore_cpa_pmu.c	drivers/perf: hisi: Remove redundant initialized of pmu->name	2023-04-17 13:14:10 +01:00
hisi_uncore_ddrc_pmu.c	drivers/perf: hisi: add NULL check for name	2023-04-17 13:14:10 +01:00
hisi_uncore_hha_pmu.c	drivers/perf: hisi: add NULL check for name	2023-04-17 13:14:10 +01:00
hisi_uncore_l3c_pmu.c	drivers/perf: hisi: add NULL check for name	2023-04-17 13:14:10 +01:00
hisi_uncore_pa_pmu.c	perf: hisi: Fix use-after-free when register pmu fails	2023-10-24 13:30:02 +01:00
hisi_uncore_pmu.c	drivers/perf: hisi: Add support for HiSilicon UC PMU driver	2023-06-16 12:27:38 +01:00
hisi_uncore_pmu.h	drivers/perf: hisi: Add support for HiSilicon UC PMU driver	2023-06-16 12:27:38 +01:00
hisi_uncore_sllc_pmu.c	perf: hisi: Fix use-after-free when register pmu fails	2023-10-24 13:30:02 +01:00
hisi_uncore_uc_pmu.c	drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09	2024-04-13 13:10:07 +02:00
hns3_pmu.c	drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process	2023-10-19 15:30:49 +01:00
Kconfig	drivers/perf: hisi: add driver for HNS3 PMU	2022-07-06 11:25:53 +01:00
Makefile	drivers/perf: hisi: Add support for HiSilicon UC PMU driver	2023-06-16 12:27:38 +01:00