starfive-tech/linux.git/drivers/perf, branch visionfive_v1_5.13

perf/arm-cmn: Fix invalid pointer when access dtc object sharing the same IRQ number

2021-07-14T15:06:46+00:00

[ Upstream commit 4e16f283edc289820e9b2d6f617ed8e514ee8396 ] When multiple dtcs share the same IRQ number, the irq_friend which used to refer to dtc object gets calculated incorrect which leads to invalid pointer. Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver") Signed-off-by: Tuan Phan Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/1623946129-3290-1-git-send-email-tuanphan@os.amperecomputing.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin

drivers/perf: hisi: Fix data source control

2021-07-14T15:06:43+00:00

[ Upstream commit 814be609baae62aaa6c02fa6f3ad66cff32a6d15 ] 'Data source' is a new function for HHA PMU and config / clear interface was wrong by mistake. 'HHA_DATSRC_CTRL' register is mainly used for data source configuration, if we enable bit0 as driver, it will go on count the event and we didn't check it carefully. So fix the issue and do as the initial purpose. Fixes: 932f6a99f9b0 ("drivers/perf: hisi: Add new functions for HHA PMU") Reported-by: kernel test robot Cc: Will Deacon Cc: Mark Rutland Signed-off-by: Shaokun Zhang Link: https://lore.kernel.org/r/1622709291-37996-1-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin

drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe()

2021-07-14T15:06:27+00:00

[ Upstream commit d96b1b8c9f79b6bb234a31c80972a6f422079376 ] ddr_perf_probe() misses to call ida_simple_remove() in an error path. Jump to cpuhp_state_err to fix it. Signed-off-by: Jing Xiangfeng Reviewed-by: Dong Aisheng Link: https://lore.kernel.org/r/20210617122614.166823-1-jingxiangfeng@huawei.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin

perf/smmuv3: Don't trample existing events with global filter

2021-07-14T15:06:12+00:00

commit 4c1daba15c209b99d192f147fea3dade30f72ed2 upstream. With global filtering, we only allow an event to be scheduled if its filter settings exactly match those of any existing events, therefore it is pointless to reapply the filter in that case. Much worse, though, is that in doing that we trample the event type of counter 0 if it's already active, and never touch the appropriate PMEVTYPERn so the new event is likely not counting the right thing either. Don't do that. CC: stable@vger.kernel.org Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/32c80c0e46237f49ad8da0c9f8864e13c4a803aa.1623153312.git.robin.murphy@arm.com Signed-off-by: Will Deacon Signed-off-by: Greg Kroah-Hartman

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2021-05-01T17:14:08+00:00

Pull kvm updates from Paolo Bonzini: "This is a large update by KVM standards, including AMD PSP (Platform Security Processor, aka "AMD Secure Technology") and ARM CoreSight (debug and trace) changes. ARM: - CoreSight: Add support for ETE and TRBE - Stage-2 isolation for the host kernel when running in protected mode - Guest SVE support when running in nVHE mode - Force W^X hypervisor mappings in nVHE mode - ITS save/restore for guests using direct injection with GICv4.1 - nVHE panics now produce readable backtraces - Guest support for PTP using the ptp_kvm driver - Performance improvements in the S2 fault handler x86: - AMD PSP driver changes - Optimizations and cleanup of nested SVM code - AMD: Support for virtual SPEC_CTRL - Optimizations of the new MMU code: fast invalidation, zap under read lock, enable/disably dirty page logging under read lock - /dev/kvm API for AMD SEV live migration (guest API coming soon) - support SEV virtual machines sharing the same encryption context - support SGX in virtual machines - add a few more statistics - improved directed yield heuristics - Lots and lots of cleanups Generic: - Rework of MMU notifier interface, simplifying and optimizing the architecture-specific code - a handful of "Get rid of oprofile leftovers" patches - Some selftests improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (379 commits) KVM: selftests: Speed up set_memory_region_test selftests: kvm: Fix the check of return value KVM: x86: Take advantage of kvm_arch_dy_has_pending_interrupt() KVM: SVM: Skip SEV cache flush if no ASIDs have been used KVM: SVM: Remove an unnecessary prototype declaration of sev_flush_asids() KVM: SVM: Drop redundant svm_sev_enabled() helper KVM: SVM: Move SEV VMCB tracking allocation to sev.c KVM: SVM: Explicitly check max SEV ASID during sev_hardware_setup() KVM: SVM: Unconditionally invoke sev_hardware_teardown() KVM: SVM: Enable SEV/SEV-ES functionality by default (when supported) KVM: SVM: Condition sev_enabled and sev_es_enabled on CONFIG_KVM_AMD_SEV=y KVM: SVM: Append "_enabled" to module-scoped SEV/SEV-ES control variables KVM: SEV: Mask CPUID[0x8000001F].eax according to supported features KVM: SVM: Move SEV module params/variables to sev.c KVM: SVM: Disable SEV/SEV-ES if NPT is disabled KVM: SVM: Free sev_asid_bitmap during init if SEV setup fails KVM: SVM: Zero out the VMCB array used to track SEV ASID association x86/sev: Drop redundant and potentially misleading 'sev_enabled' KVM: x86: Move reverse CPUID helpers to separate header file KVM: x86: Rename GPR accessors to make mode-aware variants the defaults ...

arm64: Get rid of oprofile leftovers

2021-04-22T12:32:39+00:00

perf_pmu_name() and perf_num_counters() are now unused. Drop them. Signed-off-by: Marc Zyngier Acked-by: Will Deacon Link: https://lore.kernel.org/r/20210414134409.1266357-3-maz@kernel.org

perf/arm_pmu_platform: Clean up with dev_printk

2021-03-30T10:41:50+00:00

Nearly all of the messages we can log from the platform device code relate to the specific PMU device and the properties we're parsing from its DT node. In some cases we use %pOF to point at where something was wrong, but even that is inconsistent. Let's convert these logs to the appropriate dev_printk variants, so that every issue specific to the device and/or its DT description is clearly and instantly attributable, particularly if there is more than one PMU node present in the DT. The local refactoring in a couple of functions invites some extra cleanup in the process - the init_fn matching can be streamlined, and the PMU registration failure message moved to the appropriate place and log level. CC: Tian Tao Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/10a4aacdf071d0c03d061c408a5899e5b32cc0a6.1616774562.git.robin.murphy@arm.com Signed-off-by: Will Deacon

perf/arm_pmu_platform: Fix error handling

2021-03-30T10:41:50+00:00

If we're aborting after failing to register the PMU device, we probably don't want to leak the IRQs that we've claimed. Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/53031a607fc8412a60024bfb3bb8cd7141f998f5.1616774562.git.robin.murphy@arm.com Signed-off-by: Will Deacon

perf/arm_pmu_platform: Use dev_err_probe() for IRQ errors

2021-03-30T10:41:50+00:00

By virtue of using platform_irq_get_optional() under the covers, platform_irq_count() needs the target interrupt controller to be available and may return -EPROBE_DEFER if it isn't. Let's use dev_err_probe() to avoid a spurious error log (and help debug any deferral issues) in that case. Reported-by: Paul Menzel Signed-off-by: Robin Murphy Link: https://lore.kernel.org/r/073d5e0d3ed1f040592cb47ca6fe3759f40cc7d1.1616774562.git.robin.murphy@arm.com Signed-off-by: Will Deacon

drivers/perf: hisi: Add support for HiSilicon PA PMU driver

2021-03-25T13:03:46+00:00

On HiSilicon Hip09 platform, there is a PA (Protocol Adapter) module on each chip SICL (Super I/O Cluster) which incorporates three Hydra interface and facilitates the cache coherency between the dies on the chip. While PA uncore PMU model is the same as other Hip09 PMU modules and many PMU events are supported. Let's support the PMU driver using the HiSilicon uncore PMU framework. PA PMU supports the following filter functions: * tracetag_en: allows user to count events according to tt_req or tt_core set in L3C PMU. It's the same as other PMUs. * srcid_cmd & srcid_msk: allows user to filter statistics that come from specific CCL/ICL by configuration source ID. * tgtid_cmd & tgtid_msk: it is the similar function to srcid_cmd & srcid_msk. Both are used to check where the data comes from or go to. Cc: Mark Rutland Cc: Will Deacon Cc: John Garry Cc: Jonathan Cameron Reviewed-by: John Garry Co-developed-by: Qi Liu Signed-off-by: Qi Liu Signed-off-by: Shaokun Zhang Link: https://lore.kernel.org/r/1615186237-22263-9-git-send-email-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon