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Searched refs:affinity (Results 1 – 25 of 158) sorted by relevance

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/linux/tools/testing/selftests/rseq/
H A Dbasic_test.c18 cpu_set_t affinity, test_affinity; in test_cpu_pointer() local
21 sched_getaffinity(0, sizeof(affinity), &affinity); in test_cpu_pointer()
24 if (CPU_ISSET(i, &affinity)) { in test_cpu_pointer()
39 sched_setaffinity(0, sizeof(affinity), &affinity); in test_cpu_pointer()
H A Dslice_test.c125 cpu_set_t affinity; in FIXTURE_SETUP() local
134 ASSERT_EQ(sched_getaffinity(0, sizeof(affinity), &affinity), 0); in FIXTURE_SETUP()
138 if (!CPU_ISSET(i, &affinity)) in FIXTURE_SETUP()
141 CPU_ZERO(&affinity); in FIXTURE_SETUP()
142 CPU_SET(i, &affinity); in FIXTURE_SETUP()
143 ASSERT_EQ(sched_setaffinity(0, sizeof(affinity), &affinity), 0); in FIXTURE_SETUP()
/linux/tools/perf/util/
H A Daffinity.h8 struct affinity { struct
14 void affinity__cleanup(struct affinity *a); argument
15 void affinity__set(struct affinity *a, int cpu);
16 int affinity__setup(struct affinity *a);
H A Daffinity.c2 /* Manage affinity to optimize IPIs inside the kernel perf API. */
11 #include "affinity.h"
25 int affinity__setup(struct affinity *a) in affinity__setup()
45 * It is more efficient to change perf's affinity to the target
49 void affinity__set(struct affinity *a, int cpu) in affinity__set()
64 * We ignore errors because affinity is just an optimization. in affinity__set()
72 static void __affinity__cleanup(struct affinity *a) in __affinity__cleanup()
82 void affinity__cleanup(struct affinity *a) in affinity__cleanup()
H A Dmmap.c98 static int perf_mmap__aio_bind(struct mmap *map, int idx, struct perf_cpu cpu, int affinity) in perf_mmap__aio_bind() argument
106 if (affinity != PERF_AFFINITY_SYS && cpu__max_node() > 1) { in perf_mmap__aio_bind()
150 struct perf_cpu cpu __maybe_unused, int affinity __maybe_unused) in perf_mmap__aio_mmap()
184 ret = perf_mmap__aio_bind(map, i, map->core.cpu, mp->affinity); in perf_mmap__aio_mmap()
279 if (mp->affinity == PERF_AFFINITY_NODE && cpu__max_node() > 1) in mmap__mmap()
281 else if (mp->affinity == PERF_AFFINITY_CPU) in mmap__mmap()
295 if (mp->affinity != PERF_AFFINITY_SYS && in mmap__mmap()
297 pr_debug2("failed to alloc mmap affinity mask, error %d\n", in mmap__mmap()
H A Devlist.h20 #include "affinity.h"
424 int affinity, int flush, int comp_level);
588 /** If present, used to set the affinity when switching between CPUs. */
589 struct affinity *affinity;
590 /** Maybe be used to hold affinity state prior to iterating. */
591 struct affinity saved_affinity;
595 * evlist__for_each_cpu - without affinity, iterate over the evlist. With
596 * affinity, iterate over all CPUs and then the evlist
598 * CPUs the affinity i
367 struct affinity *affinity; global() member
[all...]
/linux/tools/virtio/ringtest/
H A Drun-on-all.sh20 "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu
24 "$@" --host-affinity $HOST_AFFINITY
/linux/kernel/irq/
H A Dmanage.c294 cpumask_copy(desc->irq_common_data.affinity, mask); in irq_do_set_affinity()
356 cpumask_copy(desc->irq_common_data.affinity, mask); in irq_set_affinity_deactivated()
420 int irq_update_affinity_desc(unsigned int irq, struct irq_affinity_desc *affinity) in irq_update_affinity_desc() argument
448 if (affinity->is_managed) { in irq_update_affinity_desc()
453 cpumask_copy(desc->irq_common_data.affinity, &affinity->mask); in irq_update_affinity_desc()
533 cpumask_copy(cpumask, desc->irq_common_data.affinity); in irq_affinity_notify()
612 if (cpumask_intersects(desc->irq_common_data.affinity, in irq_setup_affinity()
614 set = desc->irq_common_data.affinity; in irq_setup_affinity()
1447 if (cpumask_intersects(old->affinity, new->affinity) || in valid_percpu_irqaction()
2431 if (cpumask_intersects(desc->percpu_enabled, action->affinity)) { in __free_percpu_irq()
[all …]
H A Dirq_test.c120 struct irq_affinity_desc affinity = { in irq_shutdown_depth_test() local
128 virq = irq_test_setup_fake_irq(test, &affinity); in irq_shutdown_depth_test()
172 struct irq_affinity_desc affinity = { in irq_cpuhotplug_test() local
185 cpumask_copy(&affinity.mask, cpumask_of(1)); in irq_cpuhotplug_test()
187 virq = irq_test_setup_fake_irq(test, &affinity); in irq_cpuhotplug_test()
/linux/kernel/
H A Dkthread.c353 cpumask_var_t affinity; in kthread_affine_node() local
358 if (!zalloc_cpumask_var(&affinity, GFP_KERNEL)) { in kthread_affine_node()
373 kthread_fetch_affinity(kthread, affinity); in kthread_affine_node()
374 set_cpus_allowed_ptr(current, affinity); in kthread_affine_node()
377 free_cpumask_var(affinity); in kthread_affine_node()
842 cpumask_var_t affinity; in kthread_affine_preferred() local
852 if (!zalloc_cpumask_var(&affinity, GFP_KERNEL)) in kthread_affine_preferred()
865 kthread_fetch_affinity(kthread, affinity); in kthread_affine_preferred()
868 set_cpus_allowed_force(p, affinity); in kthread_affine_preferred()
872 free_cpumask_var(affinity); in kthread_affine_preferred()
[all …]
/linux/drivers/infiniband/hw/hfi1/
H A Daffinity.c955 struct hfi1_affinity_node_list *affinity) in find_hw_thread_mask() argument
960 cpumask_copy(hw_thread_mask, &affinity->proc.mask); in find_hw_thread_mask()
962 if (affinity->num_core_siblings == 0) in find_hw_thread_mask()
965 num_cores = rounddown(node_affinity.num_online_cpus / affinity->num_core_siblings, in find_hw_thread_mask()
983 struct hfi1_affinity_node_list *affinity = &node_affinity; in hfi1_get_proc_affinity() local
984 struct cpu_mask_set *set = &affinity->proc; in hfi1_get_proc_affinity()
1042 mutex_lock(&affinity->lock); in hfi1_get_proc_affinity()
1072 for (i = 0; i < affinity->num_core_siblings; i++) { in hfi1_get_proc_affinity()
1073 find_hw_thread_mask(i, hw_thread_mask, affinity); in hfi1_get_proc_affinity()
1143 mutex_unlock(&affinity->lock); in hfi1_get_proc_affinity()
[all …]
/linux/Documentation/translations/zh_CN/core-api/irq/
H A Dirq-affinity.rst3 :Original: Documentation/core-api/irq/irq-affinity.rst
9 .. _cn_irq-affinity.rst:
23 (IRQ affinity)，那么所有cpu的默认值将保持不变(即关联到所有CPU).
H A Dindex.rst20 irq-affinity
/linux/drivers/perf/
H A Darm_pmu.c29 static int armpmu_count_irq_users(const struct cpumask *affinity,
587 static int armpmu_count_irq_users(const struct cpumask *affinity, const int irq) in armpmu_count_irq_users() argument
591 for_each_cpu(cpu, affinity) { in armpmu_count_irq_users()
600 armpmu_find_irq_ops(const struct cpumask *affinity, int irq) in armpmu_find_irq_ops() argument
605 for_each_cpu(cpu, affinity) { in armpmu_find_irq_ops()
634 const struct cpumask *affinity = *armpmu ? &(*armpmu)->supported_cpus : in armpmu_request_irq() local
668 } else if (armpmu_count_irq_users(affinity, irq) == 0) { in armpmu_request_irq()
669 err = request_percpu_nmi(irq, handler, "arm-pmu", affinity, pcpu_armpmu); in armpmu_request_irq()
674 affinity, pcpu_armpmu); in armpmu_request_irq()
682 irq_ops = armpmu_find_irq_ops(affinity, irq); in armpmu_request_irq()
/linux/drivers/irqchip/
H A Dirq-bcm7038-l1.c47 u8 affinity[MAX_WORDS * IRQS_PER_WORD]; member
173 __bcm7038_l1_unmask(d, intc->affinity[d->hwirq]); in bcm7038_l1_unmask()
183 __bcm7038_l1_mask(d, intc->affinity[d->hwirq]); in bcm7038_l1_mask()
202 was_disabled = !!(intc->cpus[intc->affinity[hw]]->mask_cache[word] & in bcm7038_l1_set_affinity()
204 __bcm7038_l1_mask(d, intc->affinity[hw]); in bcm7038_l1_set_affinity()
205 intc->affinity[hw] = first_cpu; in bcm7038_l1_set_affinity()
/linux/arch/alpha/kernel/
H A Dsys_titan.c135 titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) in titan_cpu_set_irq_affinity() argument
140 if (cpumask_test_cpu(cpu, &affinity)) in titan_cpu_set_irq_affinity()
149 titan_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity, in titan_set_irq_affinity() argument
154 titan_cpu_set_irq_affinity(irq - 16, *affinity); in titan_set_irq_affinity()
/linux/tools/perf/
H A Dbuiltin-record.c102 struct mmap_cpu_mask affinity;
1281 if (opts->affinity != PERF_AFFINITY_SYS)
1287 opts->nr_cblocks, opts->affinity, in record__mmap_evlist()
1568 if (rec->opts.affinity != PERF_AFFINITY_SYS &&
1569 !bitmap_equal(thread->mask->affinity.bits, map->affinity_mask.bits,
1570 thread->mask->affinity.nbits)) {
1571 bitmap_zero(thread->mask->affinity.bits, thread->mask->affinity.nbits);
1572 bitmap_or(thread->mask->affinity.bits, thread->mask->affinity
100 struct mmap_cpu_mask affinity; global() member
[all...]
/linux/drivers/resctrl/
H A Dmpam_devices.c489 cpumask_t *affinity) in mpam_get_cpumask_from_cache_id() argument
491 return acpi_pptt_get_cpumask_from_cache_id(cache_id, affinity); in mpam_get_cpumask_from_cache_id()
498 static void get_cpumask_from_node_id(u32 node_id, cpumask_t *affinity) in get_cpumask_from_node_id() argument
504 cpumask_set_cpu(cpu, affinity); in get_cpumask_from_node_id()
508 static int mpam_ris_get_affinity(struct mpam_msc *msc, cpumask_t *affinity, in mpam_ris_get_affinity() argument
518 affinity); in mpam_ris_get_affinity()
525 if (cpumask_empty(affinity)) in mpam_ris_get_affinity()
530 get_cpumask_from_node_id(comp->comp_id, affinity); in mpam_ris_get_affinity()
537 cpumask_and(affinity, affinity, &msc->accessibility); in mpam_ris_get_affinity()
585 err = mpam_ris_get_affinity(msc, &ris->affinity, type, class, comp); in mpam_ris_create_locked()
[all …]
/linux/Documentation/core-api/
H A Dworkqueue.rst379 An unbound workqueue groups CPUs according to its affinity scope to improve
380 cache locality. For example, if a workqueue is using the default affinity
387 Workqueue currently supports the following affinity scopes.
411 This is the default affinity scope.
420 The default affinity scope can be changed with the module parameter
421 ``workqueue.default_affinity_scope`` and a specific workqueue's affinity
424 If ``WQ_SYSFS`` is set, the workqueue will have the following affinity scope
429 Read to see the current affinity scope. Write to change.
435 0 by default indicating that affinity scopes are not strict. When a work
437 that the worker is inside its affinity scope, which is called
[all …]
/linux/tools/testing/selftests/bpf/
H A Dbench.c19 .affinity = false,
353 env.affinity = true; in parse_arg()
362 env.affinity = true; in parse_arg()
370 env.affinity = true; in parse_arg()
725 if (env.affinity) in setup_benchmark()
748 if (env.affinity) in setup_benchmark()
/linux/include/linux/
H A Dirqdomain.h59 const struct cpumask *affinity; member
375 const struct irq_affinity_desc *affinity);
482 const struct irq_affinity_desc *affinity);
610 const struct irq_affinity_desc *affinity);
/linux/arch/powerpc/platforms/cell/spufs/
H A Dinode.c383 int affinity; in spufs_create_context() local
406 affinity = flags & (SPU_CREATE_AFFINITY_MEM | SPU_CREATE_AFFINITY_SPU); in spufs_create_context()
407 if (affinity) { in spufs_create_context()
425 if (affinity) { in spufs_create_context()
437 if (affinity) in spufs_create_context()
/linux/arch/arm/boot/dts/rockchip/
H A Drv1109.dtsi21 interrupt-affinity = <&cpu0>, <&cpu1>;
/linux/arch/arm64/boot/dts/broadcom/bcmbca/
H A Dbcm4906.dtsi24 interrupt-affinity = <&cpu0>, <&cpu1>;
/linux/arch/arm/kernel/
H A Dsetup.c626 u32 i, affinity; in smp_build_mpidr_hash() local
640 affinity = MPIDR_AFFINITY_LEVEL(mask, i); in smp_build_mpidr_hash()
646 ls = fls(affinity); in smp_build_mpidr_hash()
647 fs[i] = affinity ? ffs(affinity) - 1 : 0; in smp_build_mpidr_hash()

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