| /linux/Documentation/driver-api/cxl/platform/acpi/ |
| H A D | srat.rst | 4 SRAT - Static Resource Affinity Table
7 The System/Static Resource Affinity Table describes resource (CPU, Memory)
8 affinity to "Proximity Domains". This table is technically optional, but for
14 Affinity entries and CEDT CFMWS to determine what your platform actually
27 Memory Affinity
34 Subtable Type : 01 [Memory Affinity]
47 Generic Port Affinity
49 The Generic Port Affinity subtable provides an association between a proximity
58 Subtable Type : 06 [Generic Port Affinity]
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| /linux/tools/virtio/ringtest/ |
| H A D | run-on-all.sh | 19 echo "GUEST AFFINITY $cpu"
20 "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu
23 echo "NO GUEST AFFINITY"
24 "$@" --host-affinity $HOST_AFFINITY
25 echo "NO AFFINITY"
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| /linux/lib/ |
| H A D | cpu_rmap.c | 3 * cpu_rmap.c: CPU affinity reverse-map support
14 * CPU affinity. However, we do not assume that the object affinities
21 * alloc_cpu_rmap - allocate CPU affinity reverse-map
162 * cpu_rmap_update - update CPU rmap following a change of object affinity
164 * @index: Index of object whose affinity changed
165 * @affinity: New CPU affinity of object
168 const struct cpumask *affinity) in cpu_rmap_update() argument
188 /* Set distance to 0 for all CPUs in the new affinity mask. in cpu_rmap_update()
191 for_each_cpu(cpu, affinity) { in cpu_rmap_update()
223 /* Glue between IRQ affinity notifiers and CPU rmaps */
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| /linux/drivers/infiniband/hw/hfi1/ |
| H A D | affinity.h | 37 /* Initialize driver affinity data */
40 * Set IRQ affinity to a CPU. The function will determine the
41 * CPU and set the affinity to it.
46 * Remove the IRQ's CPU affinity. This function also updates
52 * Determine a CPU affinity for a user process, if the process does not
53 * have an affinity set yet.
77 struct mutex lock; /* protects affinity nodes */
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| H A D | affinity.c | 12 #include "affinity.h"
136 * The real cpu mask is part of the affinity struct but it has to be in node_affinity_init()
378 hfi1_cdbg(AFFINITY, in _dev_comp_vect_mappings_destroy()
427 hfi1_cdbg(AFFINITY, in _dev_comp_vect_mappings_create()
503 … "Number of kernel receive queues is too large for completion vector affinity to be effective\n"); in _dev_comp_vect_cpu_mask_init()
532 hfi1_cdbg(AFFINITY, in _dev_comp_vect_cpu_mask_init()
533 "[%s] Completion vector affinity CPU set(s) %*pbl", in _dev_comp_vect_cpu_mask_init()
572 * Interrupt affinity.
597 * If this is the first time this NUMA node's affinity is used, in hfi1_dev_affinity_init()
598 * create an entry in the global affinity structure and initialize it. in hfi1_dev_affinity_init()
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| /linux/tools/perf/util/ |
| 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 | 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 | 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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| 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()
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()
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| /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/include/linux/ |
| H A D | cpu_rmap.h | 6 * cpu_rmap.c: CPU affinity reverse-map support
16 * struct cpu_rmap - CPU affinity reverse-map
21 * based on affinity masks
40 const struct cpumask *affinity);
53 * alloc_irq_cpu_rmap - allocate CPU affinity reverse-map for IRQs
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| /linux/tools/power/cpupower/bench/ |
| H A D | system.c | 67 * sets cpu affinity for the process
69 * @param cpu cpu# to which the affinity should be set
72 * @retval -1 when setting the affinity failed
82 dprintf("set affinity to cpu #%u\n", cpu); in set_cpu_affinity()
86 fprintf(stderr, "warning: unable to set cpu affinity\n"); in set_cpu_affinity()
146 * sets up the cpu affinity and scheduler priority
155 printf("set cpu affinity to cpu #%u\n", config->cpu); in prepare_system()
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| /linux/drivers/md/ |
| H A D | dm-ps-io-affinity.c | 12 #define DM_MSG_PREFIX "multipath io-affinity"
52 *error = "io-affinity ps: invalid number of arguments"; in ioa_add_path()
58 *error = "io-affinity ps: Error allocating path context"; in ioa_add_path()
67 *error = "io-affinity ps: Error allocating cpumask context"; in ioa_add_path()
74 *error = "io-affinity ps: invalid cpumask"; in ioa_add_path()
97 *error = "io-affinity ps: No new/valid CPU mapping found"; in ioa_add_path()
238 .name = "io-affinity",
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| /linux/Documentation/devicetree/bindings/interrupt-controller/ |
| H A D | apple,aic.yaml | 21 - Per-IRQ affinity setting
89 FIQ affinity can be expressed as a single "affinities" node,
91 affinity.
93 "^.+-affinity$":
100 the affinity is not the default.
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| /linux/Documentation/driver-api/cxl/platform/example-configurations/ |
| H A D | flexible.rst | 142 Subtable Type : 01 [Memory Affinity]
154 Subtable Type : 01 [Memory Affinity]
166 Subtable Type : 01 [Memory Affinity]
178 Subtable Type : 01 [Memory Affinity]
190 Subtable Type : 01 [Memory Affinity]
202 Subtable Type : 01 [Memory Affinity]
214 Subtable Type : 01 [Memory Affinity]
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| /linux/arch/arm64/kernel/ |
| H A D | setup.c | 106 * smp_build_mpidr_hash - Pre-compute shifts required at each affinity
113 u32 i, affinity, fs[4], bits[4], ls; in smp_build_mpidr_hash() local
117 * not contribute to affinity levels, ie they never toggle. in smp_build_mpidr_hash()
123 * Find and stash the last and first bit set at all affinity levels to in smp_build_mpidr_hash()
127 affinity = MPIDR_AFFINITY_LEVEL(mask, i); in smp_build_mpidr_hash()
131 * to express the affinity level. 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()
139 * significant bits at each affinity level and by shifting in smp_build_mpidr_hash()
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| H A D | sleep.S | 14 * @rs0: register containing affinity level 0 bit shift
15 * @rs1: register containing affinity level 1 bit shift
16 * @rs2: register containing affinity level 2 bit shift
17 * @rs3: register containing affinity level 3 bit shift
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| /linux/drivers/gpu/drm/amd/amdkfd/ |
| H A D | kfd_crat.h | 87 * ComputeUnit Affinity structure and definitions
122 * HSA Memory Affinity structure and definitions
147 * HSA Cache Affinity structure and definitions
176 * HSA TLB Affinity structure and definitions
211 * HSA CCompute/APU Affinity structure and definitions
230 * HSA IO Link Affinity structure and definitions
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| /linux/kernel/irq/ |
| 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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| /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"},
351 env.affinity = true; in parse_arg()
360 env.affinity = true; in parse_arg()
368 env.affinity in parse_arg()
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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/tools/perf/ |
| H A D | builtin-record.c | 101 struct mmap_cpu_mask affinity;
1292 if (opts->affinity != PERF_AFFINITY_SYS) in record__mmap_evlist()
1298 opts->nr_cblocks, opts->affinity, in record__mmap_evlist()
1579 if (rec->opts.affinity != PERF_AFFINITY_SYS && in record__adjust_affinity()
1580 !bitmap_equal(thread->mask->affinity.bits, map->affinity_mask.bits, in record__adjust_affinity()
1581 thread->mask->affinity.nbits)) { in record__adjust_affinity()
1582 bitmap_zero(thread->mask->affinity.bits, thread->mask->affinity.nbits); in record__adjust_affinity()
1583 bitmap_or(thread->mask->affinity.bits, thread->mask->affinity in record__adjust_affinity()
100 struct mmap_cpu_mask affinity; global() member
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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
648 pr_warn("unable to set irq affinity (irq=%d, cpu=%u)\n", in armpmu_request_irq()
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()
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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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