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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 02:19:38 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-13 02:19:38 +0300
commitadd76959575736c194b3118d96e43f8cd7bcec82 (patch)
tree90eaf83f5726214dcffa4631921345fb40d1c96c /drivers/perf
parent617fe4fa82b2fe5bcb99f97f223f408603bfa5a0 (diff)
parent17b8d847b92d815d1638f0de154654081d66b281 (diff)
downloadlinux-add76959575736c194b3118d96e43f8cd7bcec82.tar.xz
Merge tag 'perf-core-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events updates from Ingo Molnar: - Thoroughly rewrite the data structures that implement perf task context handling, with the goal of fixing various quirks and unfeatures both in already merged, and in upcoming proposed code. The old data structure is the per task and per cpu perf_event_contexts: task_struct::perf_events_ctxp[] <-> perf_event_context <-> perf_cpu_context ^ | ^ | ^ `---------------------------------' | `--> pmu ---' v ^ perf_event ------' In this new design this is replaced with a single task context and a single CPU context, plus intermediate data-structures: task_struct::perf_event_ctxp -> perf_event_context <- perf_cpu_context ^ | ^ ^ `---------------------------' | | | | perf_cpu_pmu_context <--. | `----. ^ | | | | | | v v | | ,--> perf_event_pmu_context | | | | | | | v v | perf_event ---> pmu ----------------' [ See commit bd2756811766 for more details. ] This rewrite was developed by Peter Zijlstra and Ravi Bangoria. - Optimize perf_tp_event() - Update the Intel uncore PMU driver, extending it with UPI topology discovery on various hardware models. - Misc fixes & cleanups * tag 'perf-core-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) perf/x86/intel/uncore: Fix reference count leak in __uncore_imc_init_box() perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map() perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() perf/x86/intel/uncore: Fix reference count leak in sad_cfg_iio_topology() perf/x86/intel/uncore: Make set_mapping() procedure void perf/x86/intel/uncore: Update sysfs-devices-mapping file perf/x86/intel/uncore: Enable UPI topology discovery for Sapphire Rapids perf/x86/intel/uncore: Enable UPI topology discovery for Icelake Server perf/x86/intel/uncore: Get UPI NodeID and GroupID perf/x86/intel/uncore: Enable UPI topology discovery for Skylake Server perf/x86/intel/uncore: Generalize get_topology() for SKX PMUs perf/x86/intel/uncore: Disable I/O stacks to PMU mapping on ICX-D perf/x86/intel/uncore: Clear attr_update properly perf/x86/intel/uncore: Introduce UPI topology type perf/x86/intel/uncore: Generalize IIO topology support perf/core: Don't allow grouping events from different hw pmus perf/amd/ibs: Make IBS a core pmu perf: Fix function pointer case perf/x86/amd: Remove the repeated declaration perf: Fix possible memleak in pmu_dev_alloc() ...
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/arm_pmu.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index bb56676f50ef..9b593f985805 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -547,15 +547,14 @@ static void armpmu_disable(struct pmu *pmu)
* microarchitecture, and aren't suitable for another. Thus, only match CPUs of
* the same microarchitecture.
*/
-static int armpmu_filter_match(struct perf_event *event)
+static bool armpmu_filter(struct pmu *pmu, int cpu)
{
- struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
- unsigned int cpu = smp_processor_id();
- int ret;
+ struct arm_pmu *armpmu = to_arm_pmu(pmu);
+ bool ret;
ret = cpumask_test_cpu(cpu, &armpmu->supported_cpus);
- if (ret && armpmu->filter_match)
- return armpmu->filter_match(event);
+ if (ret && armpmu->filter)
+ return armpmu->filter(pmu, cpu);
return ret;
}
@@ -882,14 +881,13 @@ struct arm_pmu *armpmu_alloc(void)
.start = armpmu_start,
.stop = armpmu_stop,
.read = armpmu_read,
- .filter_match = armpmu_filter_match,
+ .filter = armpmu_filter,
.attr_groups = pmu->attr_groups,
/*
* This is a CPU PMU potentially in a heterogeneous
* configuration (e.g. big.LITTLE). This is not an uncore PMU,
* and we have taken ctx sharing into account (e.g. with our
- * pmu::filter_match callback and pmu::event_init group
- * validation).
+ * pmu::filter callback and pmu::event_init group validation).
*/
.capabilities = PERF_PMU_CAP_HETEROGENEOUS_CPUS | PERF_PMU_CAP_EXTENDED_REGS,
};