[PATCH 00/10] perf: Clean up common uncore boilerplate

From: Robin Murphy
Date: Tue Mar 12 2024 - 13:34:34 EST


Hi all,

Since this came up yet again recently, and it's an idea which has been
nagging me for years, I decided it was time to see how hard it really
would be to start shaving this yak. And it turns out to be refreshingly
simple - the core code has quietly become capable of doing most of what
we want, the one new functional addition is trivial (patch #2), and the
resulting largely-mechanical cleanup seems a pretty nice win.

This series is focused on drivers/perf/ as that's where most mess is
concentrated, but figured I'd include the arch/ patches as well since
they might be reasonable to land with the core changes, at least for x86
(FWIW I did also look at the powerpc drivers but they scared me and I
ran away; sorry). The remaining stragglers elsewhere around the tree I'd
come back to as a follow-up.

(And yes, I appreciate it's mid-merge-window already, but since I do
have a tree-wide rename proposed here, may as well give the discussion
a chance for a head start before -rc1...)

Thanks,
Robin.


Robin Murphy (10):
perf/alibaba_uncore_drw: Use correct CPU affinity
perf: Add capability for common event support
drivers/perf: Use PERF_PMU_CAP_NO_COMMON_EVENTS
perf: Rename PERF_PMU_CAP_NO_INTERRUPT
drivers/perf: Use PERF_PMU_CAP_NO_SAMPLING consistently
drivers/perf: Clean up redundant per-task checks
perf: Define common uncore capabilities
drivers/perf: Use common uncore capabilities
x86: Use common uncore PMU capabilities
ARM: Use common uncore PMU capabilities

arch/arc/kernel/perf_event.c | 2 +-
arch/arm/mach-imx/mmdc.c | 16 +-------------
arch/arm/mm/cache-l2x0-pmu.c | 12 +---------
arch/csky/kernel/perf_event.c | 2 +-
arch/powerpc/perf/8xx-pmu.c | 2 +-
arch/powerpc/perf/hv-24x7.c | 2 +-
arch/powerpc/perf/hv-gpci.c | 2 +-
arch/powerpc/platforms/pseries/papr_scm.c | 2 +-
arch/s390/kernel/perf_cpum_cf.c | 2 +-
arch/sh/kernel/perf_event.c | 2 +-
arch/x86/events/amd/iommu.c | 17 +-------------
arch/x86/events/amd/power.c | 10 +--------
arch/x86/events/amd/uncore.c | 12 +++-------
arch/x86/events/core.c | 2 +-
arch/x86/events/intel/cstate.c | 16 +++-----------
arch/x86/events/intel/uncore.c | 11 +--------
arch/x86/events/intel/uncore_snb.c | 20 +++--------------
arch/x86/events/msr.c | 9 +-------
arch/x86/events/rapl.c | 9 +-------
drivers/fpga/dfl-fme-perf.c | 2 +-
drivers/perf/alibaba_uncore_drw_pmu.c | 27 +++--------------------
drivers/perf/amlogic/meson_ddr_pmu_core.c | 11 +--------
drivers/perf/arm-cci.c | 15 +------------
drivers/perf/arm-ccn.c | 20 +----------------
drivers/perf/arm-cmn.c | 10 +--------
drivers/perf/arm_cspmu/arm_cspmu.c | 27 ++---------------------
drivers/perf/arm_dmc620_pmu.c | 18 +--------------
drivers/perf/arm_dsu_pmu.c | 22 +-----------------
drivers/perf/arm_pmu_platform.c | 2 +-
drivers/perf/arm_smmuv3_pmu.c | 15 +------------
drivers/perf/arm_spe_pmu.c | 7 ++----
drivers/perf/cxl_pmu.c | 8 +------
drivers/perf/dwc_pcie_pmu.c | 13 +----------
drivers/perf/fsl_imx8_ddr_perf.c | 13 +----------
drivers/perf/fsl_imx9_ddr_perf.c | 13 +----------
drivers/perf/hisilicon/hisi_pcie_pmu.c | 10 +--------
drivers/perf/hisilicon/hisi_uncore_pmu.c | 20 +----------------
drivers/perf/hisilicon/hns3_pmu.c | 9 +-------
drivers/perf/marvell_cn10k_ddr_pmu.c | 15 +------------
drivers/perf/marvell_cn10k_tad_pmu.c | 6 +----
drivers/perf/qcom_l2_pmu.c | 21 ++----------------
drivers/perf/qcom_l3_pmu.c | 21 +-----------------
drivers/perf/riscv_pmu_sbi.c | 2 +-
drivers/perf/thunderx2_pmu.c | 17 +-------------
drivers/perf/xgene_pmu.c | 16 +-------------
include/linux/perf_event.h | 6 ++++-
kernel/events/core.c | 7 +++++-
47 files changed, 67 insertions(+), 456 deletions(-)

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2.39.2.101.g768bb238c484.dirty