| /linux/tools/testing/selftests/rseq/ |
| H A D | basic_test.c | 18 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()
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| H A D | slice_test.c | 125 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()
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| /linux/kernel/irq/ |
| H A D | irqdesc.c | 57 if (!zalloc_cpumask_var_node(&desc->irq_common_data.affinity, in alloc_masks()
64 free_cpumask_var(desc->irq_common_data.affinity); in alloc_masks()
74 free_cpumask_var(desc->irq_common_data.affinity); in alloc_masks()
86 static void desc_smp_init(struct irq_desc *desc, int node, const struct cpumask *affinity) in desc_smp_init() argument
88 if (!affinity) in desc_smp_init()
89 affinity = irq_default_affinity; in desc_smp_init()
90 cpumask_copy(desc->irq_common_data.affinity, affinity); in desc_smp_init()
106 free_cpumask_var(desc->irq_common_data.affinity); in free_masks()
116 desc_smp_init(struct irq_desc *desc, int node, const struct cpumask *affinity) { } in desc_smp_init() argument
121 const struct cpumask *affinity, struct module *owner) in desc_set_defaults() argument
[all …]
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| H A D | manage.c | 293 cpumask_copy(desc->irq_common_data.affinity, mask); in irq_do_set_affinity()
355 cpumask_copy(desc->irq_common_data.affinity, mask); in irq_set_affinity_deactivated()
419 int irq_update_affinity_desc(unsigned int irq, struct irq_affinity_desc *affinity) in irq_update_affinity_desc() argument
447 if (affinity->is_managed) { in irq_update_affinity_desc()
452 cpumask_copy(desc->irq_common_data.affinity, &affinity->mask); in irq_update_affinity_desc()
532 cpumask_copy(cpumask, desc->irq_common_data.affinity); in irq_affinity_notify()
611 if (cpumask_intersects(desc->irq_common_data.affinity, in irq_setup_affinity()
613 set = desc->irq_common_data.affinity; in irq_setup_affinity()
1446 if (cpumask_intersects(old->affinity, new->affinity) || in valid_percpu_irqaction()
2421 if (cpumask_intersects(desc->percpu_enabled, action->affinity)) { in __free_percpu_irq()
[all …]
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| H A D | irq_test.c | 120 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()
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| H A D | irqdomain.c | 30 bool realloc, const struct irq_affinity_desc *affinity);
783 const struct irq_affinity_desc *affinity) in irq_create_mapping_affinity_locked() argument
792 affinity); in irq_create_mapping_affinity_locked()
822 const struct irq_affinity_desc *affinity) in irq_create_mapping_affinity() argument
843 virq = irq_create_mapping_affinity_locked(domain, hwirq, affinity); in irq_create_mapping_affinity()
1284 int node, const struct irq_affinity_desc *affinity) in irq_domain_alloc_descs() argument
1290 affinity); in irq_domain_alloc_descs()
1296 affinity); in irq_domain_alloc_descs()
1299 affinity); in irq_domain_alloc_descs()
1629 bool realloc, const struct irq_affinity_desc *affinity) in irq_domain_alloc_irqs_locked() argument
[all …]
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| H A D | msi.c | 77 const struct irq_affinity_desc *affinity) in msi_alloc_desc() argument
86 if (affinity) { in msi_alloc_desc()
87 desc->affinity = kmemdup_array(affinity, nvec, sizeof(*desc->affinity), GFP_KERNEL); in msi_alloc_desc()
88 if (!desc->affinity) { in msi_alloc_desc()
98 kfree(desc->affinity); in msi_free_desc()
157 desc = msi_alloc_desc(dev, init_desc->nvec_used, init_desc->affinity); in msi_domain_insert_msi_desc()
1338 desc->affinity); in __msi_domain_alloc_irqs()
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| /linux/tools/perf/util/ |
| H A D | affinity.h | 8 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);
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| H A D | affinity.c | 2 /* 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()
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| H A D | mmap.c | 98 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()
142 struct perf_cpu cpu __maybe_unused, int affinity __maybe_unused) in perf_mmap__aio_bind()
176 ret = perf_mmap__aio_bind(map, i, map->core.cpu, mp->affinity); in perf_mmap__aio_mmap()
269 if (mp->affinity == PERF_AFFINITY_NODE && cpu__max_node() > 1) in perf_mmap__setup_affinity_mask()
271 else if (mp->affinity == PERF_AFFINITY_CPU) in perf_mmap__setup_affinity_mask()
285 if (mp->affinity != PERF_AFFINITY_SYS && in mmap__mmap()
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| H A D | evlist.h | 13 #include "affinity.h"
200 int affinity, int flush, int comp_level);
366 /** If present, used to set the affinity when switching between CPUs. */
367 struct affinity *affinity; member
368 /** Maybe be used to hold affinity state prior to iterating. */
369 struct affinity saved_affinity;
373 * evlist__for_each_cpu - without affinity, iterate over the evlist. With
374 * affinity, iterate over all CPUs and then the evlist
376 * CPUs the affinity i
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| /linux/tools/virtio/ringtest/ |
| H A D | run-on-all.sh | 20 "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu
24 "$@" --host-affinity $HOST_AFFINITY
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| /linux/kernel/ |
| H A D | kthread.c | 353 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 …]
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| /linux/drivers/infiniband/hw/hfi1/ |
| H A D | affinity.c | 955 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 …]
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| /linux/arch/arm64/kernel/ |
| H A D | setup.c | 113 u32 i, affinity, fs[4], bits[4], ls; in smp_build_mpidr_hash() local
127 affinity = MPIDR_AFFINITY_LEVEL(mask, i); in smp_build_mpidr_hash()
133 ls = fls(affinity); in smp_build_mpidr_hash()
134 fs[i] = affinity ? ffs(affinity) - 1 : 0; in smp_build_mpidr_hash()
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| /linux/Documentation/translations/zh_CN/core-api/irq/ |
| H A D | irq-affinity.rst | 3 :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).
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| /linux/arch/alpha/kernel/ |
| H A D | sys_dp264.c | 136 cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) in cpu_set_irq_affinity() argument
142 if (cpumask_test_cpu(cpu, &affinity)) in cpu_set_irq_affinity()
151 dp264_set_affinity(struct irq_data *d, const struct cpumask *affinity, in dp264_set_affinity() argument
155 cpu_set_irq_affinity(d->irq, *affinity); in dp264_set_affinity()
163 clipper_set_affinity(struct irq_data *d, const struct cpumask *affinity, in clipper_set_affinity() argument
167 cpu_set_irq_affinity(d->irq - 16, *affinity); in clipper_set_affinity()
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| H A D | sys_titan.c | 135 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()
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| /linux/drivers/perf/ |
| H A D | arm_pmu.c | 29 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()
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| /linux/drivers/irqchip/ |
| H A D | irq-bcm7038-l1.c | 47 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()
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| /linux/tools/perf/ |
| H A D | builtin-record.c | 100 struct mmap_cpu_mask affinity; member
1290 if (opts->affinity != PERF_AFFINITY_SYS) in record__mmap_evlist()
1296 opts->nr_cblocks, opts->affinity, in record__mmap_evlist()
1578 if (rec->opts.affinity != PERF_AFFINITY_SYS && in record__adjust_affinity()
1579 !bitmap_equal(thread->mask->affinity.bits, map->affinity_mask.bits, in record__adjust_affinity()
1580 thread->mask->affinity.nbits)) { in record__adjust_affinity()
1581 bitmap_zero(thread->mask->affinity.bits, thread->mask->affinity.nbits); in record__adjust_affinity()
1582 bitmap_or(thread->mask->affinity.bits, thread->mask->affinity in record__adjust_affinity()
[all...] |
| /linux/drivers/resctrl/ |
| H A D | mpam_devices.c | 471 cpumask_t *affinity) in mpam_get_cpumask_from_cache_id() argument
473 return acpi_pptt_get_cpumask_from_cache_id(cache_id, affinity); in mpam_get_cpumask_from_cache_id()
480 static void get_cpumask_from_node_id(u32 node_id, cpumask_t *affinity) in get_cpumask_from_node_id() argument
486 cpumask_set_cpu(cpu, affinity); in get_cpumask_from_node_id()
490 static int mpam_ris_get_affinity(struct mpam_msc *msc, cpumask_t *affinity, in mpam_ris_get_affinity() argument
500 affinity); in mpam_ris_get_affinity()
507 if (cpumask_empty(affinity)) in mpam_ris_get_affinity()
512 get_cpumask_from_node_id(comp->comp_id, affinity); in mpam_ris_get_affinity()
519 cpumask_and(affinity, affinity, &msc->accessibility); in mpam_ris_get_affinity()
567 err = mpam_ris_get_affinity(msc, &ris->affinity, type, class, comp); in mpam_ris_create_locked()
[all …]
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| H A D | mpam_internal.h | 297 cpumask_t affinity; member
331 cpumask_t affinity; member
372 cpumask_t affinity; member
470 cpumask_t *affinity);
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| /linux/tools/testing/selftests/bpf/ |
| H A D | bench.c | 19 .affinity = false,
266 { "affinity", 'a', NULL, 0, "Set consumer/producer thread affinity"},
269 { "prod-affinity", ARG_PROD_AFFINITY_SET, "CPUSET", 0,
270 "Set of CPUs for producer threads; implies --affinity"},
271 { "cons-affinity", ARG_CONS_AFFINITY_SET, "CPUSET", 0,
272 "Set of CPUs for consumer threads; implies --affinity"},
349 env.affinity = true; in parse_arg()
358 env.affinity = true; in parse_arg()
366 env.affinity in parse_arg()
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| /linux/drivers/iommu/ |
| H A D | hyperv-iommu.c | 198 const struct cpumask *affinity; in hyperv_root_ir_compose_msi_msg() local
205 affinity = irq_data_get_effective_affinity_mask(irq_data); in hyperv_root_ir_compose_msi_msg()
206 cpu = cpumask_first_and(affinity, cpu_online_mask); in hyperv_root_ir_compose_msi_msg()
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