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/linux/arch/riscv/boot/dts/sophgo/
H A Dsg2042-cpus.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
8 #address-cells = <1>;
9 #size-cells = <0>;
10 timebase-frequency = <50000000>;
12 cpu-map {
16 cpu = <&cpu0>;
19 cpu = <&cpu1>;
22 cpu = <&cpu2>;
25 cpu = <&cpu3>;
31 cpu = <&cpu4>;
[all …]
H A Dsg2044-cpus.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 #address-cells = <2>;
8 #size-cells = <2>;
11 #address-cells = <1>;
12 #size-cells = <0>;
13 timebase-frequency = <50000000>;
15 cpu0: cpu@0 {
18 i-cache-block-size = <64>;
19 i-cache-size = <65536>;
20 i-cache-sets = <512>;
[all …]
/linux/drivers/base/
H A Dcacheinfo.c1 // SPDX-License-Identifier: GPL-2.0
3 * cacheinfo support - processor cache information via sysfs
5 * Based on arch/x86/kernel/cpu/intel_cacheinfo.c
14 #include <linux/cpu.h>
23 /* pointer to per cpu cacheinfo */
25 #define ci_cacheinfo(cpu) (&per_cpu(ci_cpu_cacheinfo, cpu)) argument
26 #define cache_leaves(cpu) (ci_cacheinfo(cpu)->num_leaves) argument
27 #define per_cpu_cacheinfo(cpu) (ci_cacheinfo(cpu)->info_list) argument
28 #define per_cpu_cacheinfo_idx(cpu, idx) \ argument
29 (per_cpu_cacheinfo(cpu) + (idx))
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/linux/drivers/acpi/
H A Dpptt.c1 // SPDX-License-Identifier: GPL-2.0
3 * pptt.c - parsing of Processor Properties Topology Table (PPTT)
33 if (pptt_ref + sizeof(struct acpi_subtable_header) > table_hdr->length) in fetch_pptt_subtable()
38 if (entry->length == 0) in fetch_pptt_subtable()
41 if (pptt_ref + entry->length > table_hdr->length) in fetch_pptt_subtable()
65 if (resource >= node->number_of_priv_resources) in acpi_get_pptt_resource()
74 static inline bool acpi_pptt_match_type(int table_type, int type) in acpi_pptt_match_type() argument
76 return ((table_type & ACPI_PPTT_MASK_CACHE_TYPE) == type || in acpi_pptt_match_type()
77 table_type & ACPI_PPTT_CACHE_TYPE_UNIFIED & type); in acpi_pptt_match_type()
81 * acpi_pptt_walk_cache() - Attempt to find the requested acpi_pptt_cache
[all …]
/linux/kernel/sched/
H A Disolation.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * any CPU: unbound workqueues, timers, kthreads and any offloadable work.
7 * Copyright (C) 2017-2018 SUSE, Frederic Weisbecker
27 bool housekeeping_enabled(enum hk_type type)
29 return !!(housekeeping.flags & BIT(type));
33 int housekeeping_any_cpu(enum hk_type type) in housekeeping_enabled() argument
35 int cpu; in housekeeping_enabled()
39 housekeeping_any_cpu(enum hk_type type) housekeeping_any_cpu() argument
41 int cpu; housekeeping_any_cpu() local
65 housekeeping_cpumask(enum hk_type type) housekeeping_cpumask() argument
74 housekeeping_affine(struct task_struct * t,enum hk_type type) housekeeping_affine() argument
82 housekeeping_test_cpu(int cpu,enum hk_type type) housekeeping_test_cpu() argument
93 enum hk_type type; housekeeping_init() local
109 housekeeping_setup_type(enum hk_type type,cpumask_var_t housekeeping_staging) housekeeping_setup_type() argument
157 enum hk_type type; housekeeping_setup() local
163 enum hk_type type; housekeeping_setup() local
[all...]
/linux/arch/arm/boot/dts/samsung/
H A Dexynos5422-odroidxu3-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Hardkernel Odroid XU3/XU3-Lite/XU4 boards common device tree source
12 #include <dt-bindings/input/input.h>
13 #include "exynos5422-odroid-core.dtsi"
20 gpio-keys {
21 compatible = "gpio-keys";
22 pinctrl-names = "default";
23 pinctrl-0 = <&power_key>;
25 power-key {
36 debounce-interval = <0>;
[all …]
H A Dexynos5422-odroidhc1.dts1 // SPDX-License-Identifier: GPL-2.0
10 /dts-v1/;
11 #include <dt-bindings/leds/common.h>
12 #include "exynos5422-odroid-core.dtsi"
16 compatible = "hardkernel,odroid-hc1", "samsung,exynos5800", \
19 led-controller {
20 compatible = "pwm-leds";
22 led-1 {
26 pwm-names = "pwm2";
27 max-brightness = <255>;
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/linux/drivers/bus/
H A Dmips_cdmm.c4 * Copyright (C) 2014-2015 Imagination Technologies Ltd.
13 #include <linux/cpu.h>
53 for (; table->type; ++table) { in mips_cdmm_lookup()
54 ret = (dev->type == table->type); in mips_cdmm_lookup()
67 return mips_cdmm_lookup(cdrv->id_table, cdev) != NULL; in mips_cdmm_match()
75 retval = add_uevent_var(env, "CDMM_CPU=%u", cdev->cpu); in mips_cdmm_uevent()
79 retval = add_uevent_var(env, "CDMM_TYPE=0x%02x", cdev->type); in mips_cdmm_uevent()
83 retval = add_uevent_var(env, "CDMM_REV=%u", cdev->rev); in mips_cdmm_uevent()
87 retval = add_uevent_var(env, "MODALIAS=mipscdmm:t%02X", cdev->type); in mips_cdmm_uevent()
102 CDMM_ATTR(cpu, "%u\n", dev->cpu);
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H A Darm-cci.c17 #include <linux/arm-cci.h>
49 {.compatible = "arm,cci-400", .data = CCI400_PORTS_DATA },
52 { .compatible = "arm,cci-500", },
53 { .compatible = "arm,cci-550", },
59 OF_DEV_AUXDATA("arm,cci-400-pmu", 0, NULL, &cci_ctrl_base),
60 OF_DEV_AUXDATA("arm,cci-400-pmu,r0", 0, NULL, &cci_ctrl_base),
61 OF_DEV_AUXDATA("arm,cci-400-pmu,r1", 0, NULL, &cci_ctrl_base),
62 OF_DEV_AUXDATA("arm,cci-500-pmu,r0", 0, NULL, &cci_ctrl_base),
63 OF_DEV_AUXDATA("arm,cci-550-pmu,r0", 0, NULL, &cci_ctrl_base),
67 #define DRIVER_NAME "ARM-CCI"
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/linux/include/linux/
H A Dpercpu-defs.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * linux/percpu-defs.h - basic definitions for percpu areas
38 * Base implementations of per-CPU variable declarations and definitions, where
84 #define DECLARE_PER_CPU_SECTION(type, name, sec) \ argument
86 extern __PCPU_ATTRS(sec) __typeof__(type) name
88 #define DEFINE_PER_CPU_SECTION(type, name, sec) \ argument
92 extern __PCPU_ATTRS(sec) __typeof__(type) name; \
93 __PCPU_ATTRS(sec) __weak __typeof__(type) name
98 #define DECLARE_PER_CPU_SECTION(type, name, sec) \ argument
99 extern __PCPU_ATTRS(sec) __typeof__(type) name
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/linux/kernel/bpf/
H A Dbpf_lru_list.c1 // SPDX-License-Identifier: GPL-2.0-only
17 #define LOCAL_LIST_IDX(t) ((t) - BPF_LOCAL_LIST_T_OFFSET)
22 static int get_next_cpu(int cpu) in get_next_cpu() argument
24 cpu = cpumask_next(cpu, cpu_possible_mask); in get_next_cpu()
25 if (cpu >= nr_cpu_ids) in get_next_cpu()
26 cpu = cpumask_first(cpu_possible_mask); in get_next_cpu()
27 return cpu; in get_next_cpu()
33 return &loc_l->lists[LOCAL_FREE_LIST_IDX]; in local_free_list()
38 return &loc_l->lists[LOCAL_PENDING_LIST_IDX]; in local_pending_list()
44 return READ_ONCE(node->ref); in bpf_lru_node_is_ref()
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/linux/arch/arm64/boot/dts/exynos/
H A Dexynos7-trip-points.dtsi1 // SPDX-License-Identifier: GPL-2.0
10 cpu-alert-0 {
13 type = "passive";
15 cpu-alert-1 {
18 type = "passive";
20 cpu-alert-2 {
23 type = "passive";
25 cpu-alert-3 {
28 type = "passive";
30 cpu-alert-4 {
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/linux/Documentation/devicetree/bindings/powerpc/
H A Dibm,powerpc-cpu-features.txt3 (skiboot/doc/device-tree/ibm,powerpc-cpu-features/binding.txt)
9 ibm,powerpc-cpu-features binding
12 This device tree binding describes CPU features available to software, with
19 /cpus/ibm,powerpc-cpu-features node binding
20 -------------------------------------------
22 Node: ibm,powerpc-cpu-features
24 Description: Container of CPU feature nodes.
26 The node name must be "ibm,powerpc-cpu-features".
35 - compatible
37 Value type: string
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/linux/tools/bpf/bpftool/
H A Dmap_perf_ring.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
53 int cpu; member
58 print_bpf_output(void *private_data, int cpu, struct perf_event_header *event) in print_bpf_output() argument
67 int idx = ctx->all_cpus ? cpu in print_bpf_output()
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/linux/Documentation/devicetree/bindings/csky/
H A Dcpus.txt2 C-SKY CPU Bindings
6 the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
7 defining properties for every cpu.
13 cpus and cpu node bindings definition
16 - cpus node
18 Description: Container of cpu nodes
24 - #address-cells
26 Value type: <u32>
28 - #size-cells
30 Value type: <u32>
[all …]
/linux/net/core/
H A Dgen_stats.c1 // SPDX-License-Identifier: GPL-2.0-or-later
24 gnet_stats_copy(struct gnet_dump *d, int type, void *buf, int size, int padattr) in gnet_stats_copy() argument
26 if (nla_put_64bit(d->skb, type, size, buf, padattr)) in gnet_stats_copy()
31 if (d->lock) in gnet_stats_copy()
32 spin_unlock_bh(d->lock); in gnet_stats_copy()
33 kfree(d->xstats); in gnet_stats_copy()
34 d->xstats = NULL; in gnet_stats_copy()
35 d->xstats_len = 0; in gnet_stats_copy()
36 return -1; in gnet_stats_copy()
40 * gnet_stats_start_copy_compat - start dumping procedure in compatibility mode
[all …]
/linux/tools/perf/tests/
H A Dperf-record.c1 // SPDX-License-Identifier: GPL-2.0
19 int i, cpu = -1, nrcpus = 1024; in sched__get_first_possible_cpu() local
23 if (sched_getaffinity(pid, sizeof(*maskp), maskp) == -1) { in sched__get_first_possible_cpu()
29 return -1; in sched__get_first_possible_cpu()
34 if (cpu == -1) in sched__get_first_possible_cpu()
35 cpu in sched__get_first_possible_cpu()
69 u32 cpu; test__PERF_RECORD() local
178 const u32 type = event->header.type; test__PERF_RECORD() local
[all...]
/linux/tools/testing/selftests/mm/
H A Duffd-stress.c1 // SPDX-License-Identifier: GPL-2.0-only
11 * There are three threads running per CPU:
13 * 1) one per-CPU thread takes a per-page pthread_mutex in a random
15 * area_src), and increments a per-page counter in the same page,
18 * 2) another per-CPU thread handles the userfaults generated by
22 * 3) one last per-CPU thread transfers the memory in the background
24 * 2). Each cpu thread takes cares of transferring a portion of the
27 * When all threads of type 3 completed the transfer, one bounce is
32 * per-CPU threads 1 by triggering userfaults inside
37 #include "uffd-common.h"
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/linux/tools/perf/arch/arm/util/
H A Dcs-etm.c1 // SPDX-License-Identifier: GPL-2.0
11 #include <linux/coresight-pmu.h>
18 #include "cs-etm.h"
29 #include "../../../util/cs-etm.h"
71 static bool cs_etm_is_ete(struct perf_pmu *cs_etm_pmu, struct perf_cpu cpu);
72 static int cs_etm_get_ro(struct perf_pmu *pmu, struct perf_cpu cpu, const char *path, __u64 *val);
73 static bool cs_etm_pmu_path_exists(struct perf_pmu *pmu, struct perf_cpu cpu, const char *path);
76 struct perf_cpu cpu) in cs_etm_get_version() argument
78 if (cs_etm_is_ete(cs_etm_pmu, cpu)) in cs_etm_get_version()
80 else if (cs_etm_pmu_path_exists(cs_etm_pmu, cpu, metadata_etmv4_ro[CS_ETMV4_TRCIDR0])) in cs_etm_get_version()
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/linux/Documentation/power/
H A Dsuspend-and-cpuhotplug.rst2 Interaction of Suspend code (S3) with the CPU hotplug infrastructure
5 (C) 2011 - 2014 Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
8 I. Differences between CPU hotplug and Suspend-to-RAM
11 How does the regular CPU hotplug code differ from how the Suspend-to-RAM
14 Well, a picture is worth a thousand words... So ASCII art follows :-)
17 interactions involving the freezer and CPU hotplug and also tries to explain
21 What happens when regular CPU hotplug and Suspend-to-RAM race with each other
24 On a high level, the suspend-resume cycle goes like this::
26 |Freeze| -> |Disable nonboot| -> |Do suspend| -> |Enable nonboot| -> |Thaw |
33 -----------------
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/linux/Documentation/networking/dsa/
H A Dconfiguration.rst1 .. SPDX-License-Identifier: GPL-2.0
10 .. _dsa-config-showcases:
13 -----------------------
33 interface. The CPU port is the switch port connected to an Ethernet MAC chip.
42 - when a DSA user interface is brought up, the conduit interface is
44 - when the conduit interface is brought down, all DSA user interfaces are
71 * lan1: 192.0.2.1/30 (192.0.2.0 - 192.0.2.3)
72 * lan2: 192.0.2.5/30 (192.0.2.4 - 192.0.2.7)
73 * lan3: 192.0.2.9/30 (192.0.2.8 - 192.0.2.11)
76 * br0: 192.0.2.129/25 (192.0.2.128 - 192.0.2.255)
[all …]
/linux/tools/perf/util/bpf_skel/
H A Dkwork_trace.bpf.c1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
22 __u32 type; member
23 __u32 cpu; member
36 __uint(type, BPF_MAP_TYPE_HASH);
43 __uint(type, BPF_MAP_TYPE_HAS
95 __u32 cpu = bpf_get_smp_processor_id(); trace_event_match() local
[all...]
/linux/arch/s390/kernel/
H A Dcache.c1 // SPDX-License-Identifier: GPL-2.0
3 * Extract CPU cache information and expose them via sysfs.
9 #include <linux/cpu.h>
43 unsigned char type : 2; member
74 for (idx = 0; idx < this_cpu_ci->num_leaves; idx++) { in show_cacheinfo()
75 cache = this_cpu_ci->info_list + idx; in show_cacheinfo()
76 seq_printf(m, "cache%-11d: ", idx); in show_cacheinfo()
77 seq_printf(m, "level=%d ", cache->level); in show_cacheinfo()
78 seq_printf(m, "type=%s ", cache_type_string[cache->type]); in show_cacheinfo()
80 cache->disable_sysfs ? "Shared" : "Private"); in show_cacheinfo()
[all …]
/linux/arch/arm64/kernel/
H A Dcpufeature.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Contains CPU feature definitions
9 * there's a little bit of over-abstraction that tends to obscure what's going
14 * user-visible instructions are available only on a subset of the available
16 * boot CPU and comparing these with the feature registers of each secondary
17 * CPU when bringing them up. If there is a mismatch, then we update the
18 * snapshot state to indicate the lowest-common denominator of the feature,
27 * may prevent a CPU from being onlined at all.
31 * - Mismatched features are *always* sanitised to a "safe" value, which
34 * - A mismatched feature marked with FTR_STRICT will cause a "SANITY CHECK"
[all …]
H A Dcacheinfo.c1 // SPDX-License-Identifier: GPL-2.0-only
35 enum cache_type type, unsigned int level) in ci_leaf_init() argument
37 this_leaf->level = level; in ci_leaf_init()
38 this_leaf->type = type; in ci_leaf_init()
48 level--; in detect_cache_level()
59 int early_cache_level(unsigned int cpu) in early_cache_level() argument
61 struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); in early_cache_level()
63 detect_cache_level(&this_cpu_ci->num_levels, &this_cpu_ci->num_leaves); in early_cache_level()
68 int init_cache_level(unsigned int cpu) in init_cache_level() argument
72 struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); in init_cache_level()
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