cpu\-capacity (full) in projects: linux

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/linux/Documentation/scheduler/
H A D	sched-capacity.rst	2 Capacity Aware Scheduling 5 1. CPU Capacity 9 ---------------- 13 different performance characteristics - on such platforms, not all CPUs can be 16 CPU capacity is a measure of the performance a CPU can reach, normalized against 17 the most performant CPU in the system. Heterogeneous systems are also called 18 asymmetric CPU capacity systems, as they contain CPUs of different capacities. 20 Disparity in maximum attainable performance (IOW in maximum CPU capacity) stems 23 - not all CPUs may have the same microarchitecture (µarch). 24 - with Dynamic Voltage and Frequency Scaling (DVFS), not all CPUs may be [all …]
H A D	sched-energy.rst	6 --------------- 10 Energy Model (EM) of the CPUs to select an energy efficient CPU for each task, 17 /!\ EAS does not support platforms with symmetric CPU topologies /!\ 19 EAS operates only on heterogeneous CPU topologies (such as Arm big.LITTLE) 25 please refer to its documentation (see Documentation/power/energy-model.rst). 29 ----------------------------- 32 - energy = [joule] (resource like a battery on powered devices) 33 - power = energy/time = [joule/second] = [watt] 39 -------------------- 45 ----------- [all …]
H A D	schedutil.rst	7 All this assumes a linear relation between frequency and work capacity, 15 individual tasks to task-group slices to CPU runqueues. As the basis for this 31 Note that blocked tasks still contribute to the aggregates (task-group slices 32 and CPU runqueues), which reflects their expected contribution when they 36 reflects the time an entity spends on the CPU, while 'runnable' reflects the 38 two metrics are the same, but once there is contention for the CPU 'running' 39 will decrease to reflect the fraction of time each task spends on the CPU 45 Frequency / CPU Invariance 48 Because consuming the CPU for 50% at 1GHz is not the same as consuming the CPU 49 for 50% at 2GHz, nor is running 50% on a LITTLE CPU the same as running 50% on [all …]
/linux/Documentation/devicetree/bindings/cpu/
H A D	cpu-capacity.txt	2 CPU capacity bindings 6 1 - Introduction 15 2 - CPU capacity definition 18 CPU capacity is a number that provides the scheduler information about CPUs 19 heterogeneity. Such heterogeneity can come from micro-architectural differences 23 capture a first-order approximation of the relative performance of CPUs. 25 CPU capacities are obtained by running a suitable benchmark. This binding makes 27 final capacity should, however, be: 29 * A "single-threaded" or CPU affine benchmark 30 * Divided by the running frequency of the CPU executing the benchmark [all …]
/linux/arch/arm/kernel/
H A D	topology.c	15 #include <linux/cpu.h> 29 #include <asm/cpu.h> 34 * cpu capacity scale management 38 * cpu capacity table 39 * This per cpu data structure describes the relative capacity of each core. 40 * On a heteregenous system, cores don't have the same computation capacity 42 * can take this difference into account during load balance. A per cpu 43 * structure is preferred because each CPU updates its own cpu_capacity field 61 * is used to compute the capacity of a CPU. 66 {"arm,cortex-a15", 3891}, [all …]
/linux/Documentation/translations/zh_CN/scheduler/
H A D	sched-capacity.rst	1 .. SPDX-License-Identifier: GPL-2.0 2 .. include:: ../disclaimer-zh_CN.rst 4 :Original: Documentation/scheduler/sched-capacity.rst 22 -------- 27 我们引入CPU算力（capacity）的概念来测量每个CPU能达到的性能，它的值相对系统中性能最强的CPU 32 - 不是所有CPU的微架构都相同。 33 - 在动态电压频率升降（Dynamic Voltage and Frequency Scaling，DVFS）框架中，不是所有的CPU都 34 能达到一样高的操作性能值（Operating Performance Points，OPP。译注，也就是“频率-电压”对）。 42 capacity(cpu) = work_per_hz(cpu) * max_freq(cpu) 45 -------------- [all …]
/linux/drivers/base/
H A D	arch_topology.c	1 // SPDX-License-Identifier: GPL-2.0 3 * Arch specific cpu topology information 12 #include <linux/cpu.h> 74 int cpu; in topology_set_scale_freq_source() local 85 for_each_cpu(cpu, cpus) { in topology_set_scale_freq_source() 86 sfd = rcu_dereference(*per_cpu_ptr(&sft_data, cpu)); in topology_set_scale_freq_source() 89 if (!sfd \|\| sfd->source != SCALE_FREQ_SOURCE_ARCH) { in topology_set_scale_freq_source() 90 rcu_assign_pointer(per_cpu(sft_data, cpu), data); in topology_set_scale_freq_source() 91 cpumask_set_cpu(cpu, &scale_freq_counters_mask); in topology_set_scale_freq_source() 105 int cpu; in topology_clear_scale_freq_source() local [all …]
H A D	topology.c	1 // SPDX-License-Identifier: GPL-2.0+ 3 * driver/base/topology.c - Populate sysfs with cpu topology information 12 #include <linux/cpu.h> 21 return sysfs_emit(buf, fmt "\n", topology_##name(dev->id)); \ 34 return -ENOMEM; \ 36 cpumask_copy(mask, topology_##mask(dev->id)); \ 52 return -ENOMEM; \ 54 cpumask_copy(mask, topology_##mask(dev->id)); \ 174 if (attr == &dev_attr_ppin.attr && !topology_ppin(kobj_to_dev(kobj)->id)) in topology_is_visible() 177 return attr->mode; in topology_is_visible() [all …]
/linux/arch/arm/boot/dts/samsung/
H A D	exynos5422-cpus.dtsi	`1 // SPDX-License-Identifier: GPL-2.0 3 * Samsung Exynos5422 SoC cpu device tree source 8 * This file provides desired ordering for Exynos5422: CPU[0123] being the A7. 10 * The Exynos5420, 5422 and 5800 actually share the same CPU configuration 13 * Exynos5420 and Exynos5800 always boot from Cortex-A15. On Exynos5422 15 * the gpg2-1 GPIO. By default all Exynos5422 based boards choose booting 16 * from the LITTLE: Cortex-A7. 21 #address-cells = <1>; 22 #size-cells = <0>; 24 cpu-map { [all …]`
H A D	exynos5420-cpus.dtsi	`1 // SPDX-License-Identifier: GPL-2.0 3 * Samsung Exynos5420 SoC cpu device tree source 9 * boards: CPU[0123] being the A15. 11 * The Exynos5420, 5422 and 5800 actually share the same CPU configuration 14 * Exynos5420 and Exynos5800 always boot from Cortex-A15. On Exynos5422 16 * the gpg2-1 GPIO. By default all Exynos5422 based boards choose booting 17 * from the LITTLE: Cortex-A7. 22 #address-cells = <1>; 23 #size-cells = <0>; 25 cpu-map { [all …]`
/linux/arch/x86/kernel/cpu/
H A D	aperfmperf.c	1 // SPDX-License-Identifier: GPL-2.0-only 20 #include <asm/cpu.h> 22 #include <asm/intel-family.h> 25 #include "cpu.h" 59 * Since the frequency freq_curr on x86 is controlled by micro-controller and 60 * our P-state setting is little more than a request/hint, we need to observe 66 * where freq_base is the max non-turbo P-state. 179 fratio -= delta_fratio; in knl_set_max_freq_ratio() 235 /* The CPU may have less than 4 cores */ in core_set_max_freq_ratio() 275 …pr_debug("Couldn't determine cpu base or turbo frequency, necessary for scale-invariant accounting… in intel_set_max_freq_ratio() [all …]
/linux/arch/arm64/boot/dts/apple/
H A D	t600x-common.dtsi	`1 // SPDX-License-Identifier: GPL-2.0+ OR MIT 11 #address-cells = <2>; 12 #size-cells = <2>; 19 #address-cells = <2>; 20 #size-cells = <0>; 22 cpu-map { 25 cpu = <&cpu_e00>; 28 cpu = <&cpu_e01>; 34 cpu = <&cpu_p00>; 37 cpu = <&cpu_p01>; [all …]`
/linux/arch/arm64/boot/dts/arm/
H A D	juno-r2.dts	`9 /dts-v1/; 11 #include <dt-bindings/interrupt-controller/arm-gic.h> 12 #include <dt-bindings/arm/coresight-cti-dt.h> 13 #include "juno-base.dtsi" 14 #include "juno-cs-r1r2.dtsi" 18 compatible = "arm,juno-r2", "arm,juno", "arm,vexpress"; 19 interrupt-parent = <&gic>; 20 #address-cells = <2>; 21 #size-cells = <2>; 28 stdout-path = "serial0:115200n8"; [all …]`
H A D	juno.dts	`4 * Copyright (c) 2013-2014 ARM Ltd. 9 /dts-v1/; 11 #include <dt-bindings/interrupt-controller/arm-gic.h> 12 #include <dt-bindings/arm/coresight-cti-dt.h> 13 #include "juno-base.dtsi" 18 interrupt-parent = <&gic>; 19 #address-cells = <2>; 20 #size-cells = <2>; 27 stdout-path = "serial0:115200n8"; 31 compatible = "arm,psci-0.2"; [all …]`
H A D	juno-r1.dts	`9 /dts-v1/; 11 #include <dt-bindings/interrupt-controller/arm-gic.h> 12 #include <dt-bindings/arm/coresight-cti-dt.h> 13 #include "juno-base.dtsi" 14 #include "juno-cs-r1r2.dtsi" 18 compatible = "arm,juno-r1", "arm,juno", "arm,vexpress"; 19 interrupt-parent = <&gic>; 20 #address-cells = <2>; 21 #size-cells = <2>; 28 stdout-path = "serial0:115200n8"; [all …]`
/linux/lib/
H A D	objpool.c	1 // SPDX-License-Identifier: GPL-2.0 12 * objpool: ring-array based lockless MPMC/FIFO queues 24 void obj = (void )&slot->entries[pool->capacity]; in objpool_init_percpu_slot() 28 slot->mask = pool->capacity - 1; in objpool_init_percpu_slot() 36 slot->entries[slot->tail & slot->mask] = obj; in objpool_init_percpu_slot() 37 obj = obj + pool->obj_size; in objpool_init_percpu_slot() 38 slot->tail++; in objpool_init_percpu_slot() 39 slot->last = slot->tail; in objpool_init_percpu_slot() 40 pool->nr_objs++; in objpool_init_percpu_slot() 58 /* skip the cpu node which could never be present */ in objpool_init_percpu_slots() [all …]
/linux/arch/arm64/boot/dts/cix/
H A D	sky1.dtsi	`1 // SPDX-License-Identifier: BSD-3-Clause 7 #include <dt-bindings/interrupt-controller/arm-gic.h> 8 #include <dt-bindings/clock/cix,sky1.h> 9 #include <dt-bindings/clock/cix,sky1-audss-cru.h> 10 #include <dt-bindings/reset/cix,sky1-system-control.h> 11 #include <dt-bindings/reset/cix,sky1-s5-system-control.h> 12 #include <dt-bindings/reset/cix,sky1-audss-cru.h> 13 #include "sky1-power.h" 16 interrupt-parent = <&gic>; 17 #address-cells = <2>; [all …]`
/linux/Documentation/devicetree/bindings/riscv/
H A D	cpus.yaml	`1 # SPDX-License-Identifier: (GPL-2.0 OR MIT) 3 --- 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 7 title: RISC-V CPUs 10 - Paul Walmsley <paul.walmsley@sifive.com> 11 - Palmer Dabbelt <palmer@sifive.com> 12 - Conor Dooley <conor@kernel.org> 15 This document uses some terminology common to the RISC-V community 19 mandated by the RISC-V ISA: a PC and some registers. This 27 - $ref: /schemas/cpu.yaml# [all …]`
/linux/drivers/cpufreq/
H A D	intel_pstate.c	`1 // SPDX-License-Identifier: GPL-2.0-only 21 #include <linux/cpu.h> 33 #include <asm/cpu.h> 38 #include <asm/intel-family.h> 56 #define ONE_EIGHTH_FP ((int64_t)1 << (FRAC_BITS - 3)) 78 mask = (1 << FRAC_BITS) - 1; in ceiling_fp() 95 * struct sample - Store performance sample 100 * to account for cpu idle period 122 * struct pstate_data - Store P state data 129 * @perf_ctl_scaling: PERF_CTL P-state to frequency scaling factor [all …]`
/linux/kernel/sched/
H A D	topology.c	1 // SPDX-License-Identifier: GPL-2.0 46 static int sched_domain_debug_one(struct sched_domain sd, int cpu, int level, in sched_domain_debug_one() argument 49 struct sched_group group = sd->groups; in sched_domain_debug_one() 50 unsigned long flags = sd->flags; in sched_domain_debug_one() 55 printk(KERN_DEBUG "%s domain-%d: ", level, "", level); in sched_domain_debug_one() 57 cpumask_pr_args(sched_domain_span(sd)), sd->name); in sched_domain_debug_one() 59 if (!cpumask_test_cpu(cpu, sched_domain_span(sd))) { in sched_domain_debug_one() 60 printk(KERN_ERR "ERROR: domain->spa in sched_domain_debug_one() 142 sched_domain_debug(struct sched_domain sd,int cpu) sched_domain_debug() argument 333 find_pd(struct perf_domain * pd,int cpu) find_pd() argument 344 pd_init(int cpu) pd_init() argument 415 int cpu = cpumask_first(cpu_map); build_perf_domains() local 688 update_top_cache_domain(int cpu) update_top_cache_domain() argument 746 cpu_attach_domain(struct sched_domain * sd,struct root_domain * rd,int cpu) cpu_attach_domain() argument 874 get_effective_llc_bytes(int cpu,struct sched_domain * sd) get_effective_llc_bytes() argument 999 sched_update_llc_bytes(unsigned int cpu) sched_update_llc_bytes() argument 1239 build_group_from_child_sched_domain(struct sched_domain * sd,int cpu) build_group_from_child_sched_domain() argument 1268 int cpu; init_overlap_sched_group() local 1316 build_overlap_sched_groups(struct sched_domain * sd,int cpu) build_overlap_sched_groups() argument 1481 get_group(int cpu,struct sd_data * sdd) get_group() argument 1527 build_sched_groups(struct sched_domain * sd,int cpu) build_sched_groups() argument 1572 init_sched_groups_capacity(int cpu,struct sched_domain * sd) init_sched_groups_capacity() argument 1580 int cpu, cores = 0, max_cpu = -1; init_sched_groups_capacity() local 1613 sched_update_asym_prefer_cpu(int cpu,int old_prio,int new_prio) sched_update_asym_prefer_cpu() argument 1718 asym_cpu_capacity_update_data(int cpu) asym_cpu_capacity_update_data() argument 1720 unsigned long capacity = arch_scale_cpu_capacity(cpu); asym_cpu_capacity_update_data() local 1757 int cpu; asym_cpu_capacity_scan() local 1870 claim_allocations(int cpu,struct s_data * d) claim_allocations() argument 1935 sd_init(struct sched_domain_topology_level * tl,const struct cpumask * cpu_map,struct sched_domain * child,int cpu) sd_init() argument 2033 tl_smt_mask(struct sched_domain_topology_level * tl,int cpu) tl_smt_mask() argument 2045 tl_cls_mask(struct sched_domain_topology_level * tl,int cpu) tl_cls_mask() argument 2057 tl_mc_mask(struct sched_domain_topology_level * tl,int cpu) tl_mc_mask() argument 2068 arch_llc_mask(cpu) global() argument 2072 arch_llc_mask(cpu) global() argument 2075 llc_mask(cpu) global() argument 2077 tl_pkg_mask(struct sched_domain_topology_level * tl,int cpu) tl_pkg_mask() argument 2123 sd_numa_mask(struct sched_domain_topology_level * tl,int cpu) sd_numa_mask() argument 2475 sched_update_numa(int cpu,bool online) sched_update_numa() argument 2491 sched_domains_numa_masks_set(unsigned int cpu) sched_domains_numa_masks_set() argument 2509 sched_domains_numa_masks_clear(unsigned int cpu) sched_domains_numa_masks_clear() argument 2529 sched_numa_find_closest(const struct cpumask * cpus,int cpu) sched_numa_find_closest() argument 2557 int cpu; global() member 2592 sched_numa_find_nth_cpu(const struct cpumask * cpus,int cpu,int node) sched_numa_find_nth_cpu() argument 2784 build_sched_domain(struct sched_domain_topology_level * tl,const struct cpumask * cpu_map,struct sched_domain_attr * attr,struct sched_domain * child,int cpu) build_sched_domain() argument 2818 int cpu; topology_span_sane() local 2939 int cpu; init_sched_domain_shared() local 2998 claim_asym_sched_domain_shared(struct s_data * d,int cpu) claim_asym_sched_domain_shared() argument 3039 __sched_domains_free_llc_id(int cpu) __sched_domains_free_llc_id() argument 3065 sched_domains_free_llc_id(int cpu) sched_domains_free_llc_id() argument 3312 unsigned int cpu = cpumask_any(cpu_map); detach_destroy_domains() local 3439 int cpu = cpumask_first(doms_cur[j]); partition_sched_domains_locked() local [all...]
H A D	fair.c	1 // SPDX-License-Identifier: GPL-2.0 47 #include <linux/memory-tiers.h> 65 * The initial- and re-scaling of tunables is configurable 69 * SCHED_TUNABLESCALING_NONE - unscaled, always 1 70 SCHED_TUNABLESCALING_LOG - scaled logarithmically, 1+ilog(ncpus) 71 SCHED_TUNABLESCALING_LINEAR - scaled linear, ncpus 98 For asym packing, by default the lower numbered CPU ha 100 arch_asym_cpu_priority(int cpu) arch_asym_cpu_priority() argument 326 int cpu = cpu_of(rq); list_add_leaf_cfs_rq() local 1460 llc_id(int cpu) llc_id() argument 1481 exceed_llc_capacity(struct mm_struct * mm,int cpu) exceed_llc_capacity() argument 1530 invalid_llc_nr(struct mm_struct * mm,struct task_struct * p,int cpu) invalid_llc_nr() argument 1814 int cpu, curr_cpu, nid, pref_nid; get_scan_cpumasks() local 1876 int cpu, m_a_cpu = -1, nr_running = 0, curr_cpu; task_cache_work() local 2213 is_core_idle(int cpu) is_core_idle() argument 2908 numa_idle_core(int idle_core,int cpu) numa_idle_core() argument 2934 int cpu, idle_core = -1; update_numa_stats() local 2977 int cpu; task_numa_assign() local 3205 int cpu = env->dst_stats.idle_cpu; task_numa_compare() local 3251 int cpu; task_numa_find_cpu() local 3849 int cpu = cpupid_to_cpu(cpupid); task_numa_group() local 6003 get_actual_cpu_capacity(int cpu) get_actual_cpu_capacity() argument 6005 unsigned long capacity = arch_scale_cpu_capacity(cpu); get_actual_cpu_capacity() local 6015 util_fits_cpu(unsigned long util,unsigned long uclamp_min,unsigned long uclamp_max,int cpu) util_fits_cpu() argument 6017 unsigned long capacity = capacity_of(cpu); util_fits_cpu() local 6131 task_fits_cpu(struct task_struct * p,int cpu) task_fits_cpu() argument 6145 int cpu = cpu_of(rq); update_misfit_status() local 7450 sync_throttle(struct task_group * tg,int cpu) sync_throttle() argument 7706 int cpu = cpu_of(rq); sched_fair_update_stop_tick() local 7732 sync_throttle(struct task_group * tg,int cpu) sync_throttle() argument 7851 cpu_overutilized(int cpu) cpu_overutilized() argument 7904 choose_idle_cpu(int cpu,struct task_struct * p) choose_idle_cpu() argument 8293 capacity_of(int cpu) capacity_of() argument 8515 sched_balance_find_dst_cpu(struct sched_domain * sd,struct task_struct * p,int cpu,int prev_cpu,int sd_flag) sched_balance_find_dst_cpu() argument 8567 __select_idle_cpu(int cpu,struct task_struct * p) __select_idle_cpu() argument 8578 set_idle_cores(int cpu,int val) set_idle_cores() argument 8587 test_idle_cores(int cpu) test_idle_cores() argument 8608 int cpu; __update_idle_core() local 8636 int cpu; select_idle_core() local 8667 int cpu; select_idle_smt() local 8693 int i, cpu, idle_cpu = -1, nr = INT_MAX; select_idle_cpu() local 8823 int cpu, best_cpu = -1; select_idle_capacity() local 8932 asym_fits_cpu(unsigned long util,unsigned long util_min,unsigned long util_max,int cpu) asym_fits_cpu() argument 9126 cpu_util(int cpu,struct task_struct * p,int dst_cpu,int boost) cpu_util() argument 9197 cpu_util_cfs(int cpu) cpu_util_cfs() argument 9202 cpu_util_cfs_boost(int cpu) cpu_util_cfs_boost() argument 9220 cpu_util_without(int cpu,struct task_struct * p) cpu_util_without() argument 9249 effective_cpu_util(int cpu,unsigned long util_cfs,unsigned long * min,unsigned long * max) effective_cpu_util() argument 9323 sched_cpu_util(int cpu) sched_cpu_util() argument 9390 int cpu; eenv_pd_busy_time() local 9413 int cpu; eenv_pd_max_util() local 9519 int cpu, best_energy_cpu, target = -1; find_energy_efficient_cpu() local 9705 int cpu = smp_processor_id(); select_task_rq_fair() local 10583 get_llc_stats(int cpu,unsigned long * util,unsigned long * cap) get_llc_stats() argument 10729 int cpu, src_cpu, dst_cpu; can_migrate_llc_task() local 10855 get_llc_stats(int cpu,unsigned long * util,unsigned long * cap) get_llc_stats() argument 10918 int cpu; can_migrate_task() local 11406 sched_balance_update_blocked_averages(int cpu) sched_balance_update_blocked_averages() argument 11481 scale_rt_capacity(int cpu) scale_rt_capacity() argument 11508 update_cpu_capacity(struct sched_domain * sd,int cpu) update_cpu_capacity() argument 11510 unsigned long capacity = scale_rt_capacity(cpu); update_cpu_capacity() local 11524 update_group_capacity(struct sched_domain * sd,int cpu) update_group_capacity() argument 11528 unsigned long capacity, min_capacity, max_capacity; update_group_capacity() local 11732 sched_use_asym_prio(struct sched_domain * sd,int cpu) sched_use_asym_prio() argument 11868 int cpu; record_sg_llc_stats() local 12293 task_running_on_cpu(int cpu,struct task_struct * p) task_running_on_cpu() argument 12312 idle_cpu_without(int cpu,struct task_struct * p) idle_cpu_without() argument 13128 unsigned long capacity, load, util; sched_balance_find_src_rq() local 13370 int cpu, idle_smt = -1; should_we_balance() local 13977 int cpu = rq->cpu; sched_balance_domains() local 14165 int nr_busy, i, cpu = rq->cpu; nohz_balancer_kick() local 14277 set_cpu_sd_state_busy(int cpu) set_cpu_sd_state_busy() argument 14306 set_cpu_sd_state_idle(int cpu) set_cpu_sd_state_idle() argument 14323 nohz_balance_enter_idle(int cpu) nohz_balance_enter_idle() argument 14377 unsigned int cpu = rq->cpu; update_nohz_stats() local 14533 nohz_run_idle_balance(int cpu) nohz_run_idle_balance() argument 15048 task_is_throttled_fair(struct task_struct * p,int cpu) task_is_throttled_fair() argument 15397 int cpu; unregister_fair_sched_group() local 15421 init_tg_cfs_entry(struct task_group * tg,struct cfs_rq * cfs_rq,struct sched_entity * se,int cpu,struct sched_entity * parent) init_tg_cfs_entry() argument 15633 print_cfs_stats(struct seq_file * m,int cpu) print_cfs_stats() argument [all...]
/linux/Documentation/devicetree/bindings/opp/
H A D	opp-v2-kryo-cpu.yaml	1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 3 --- 4 $id: http://devicetree.org/schemas/opp/opp-v2-kryo-cpu.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 10 - Ilia Lin <ilia.lin@kernel.org> 13 - $ref: opp-v2-base.yaml# 17 the CPU frequencies subset and voltage value of each OPP varies based on 22 The qcom-cpufreq-nvmem driver reads the efuse value from the SoC to provide 25 operating-points-v2 table when it is parsed by the OPP framework. 30 - operating-points-v2-krait-cpu [all …]
/linux/arch/powerpc/platforms/pseries/
H A D	lparcfg.c	`1 // SPDX-License-Identifier: GPL-2.0-or-later 14 * keyword - value pairs that specify the configuration of the partition. 22 #include <asm/papr-sysparm.h> 96 * R4 = Entitled Processor Capacity Percentage. 97 * R5 = Unallocated Processor Capacity Percentage. 99 * XXXX - reserved (0) 100 * XXXX - Active Cores in Resource Group 101 * XXXX - Group Number 102 * XXXX - Pool Number. 104 * XX - Resource group Number [all …]`
/linux/kernel/power/
H A D	energy_model.c	1 // SPDX-License-Identifier: GPL-2.0 5 * Copyright (c) 2018-2021, Arm ltd. 12 #include <linux/cpu.h> 46 return (dev->bus == &cpu_subsys); in _is_cpu_device() 60 struct em_dbg_info em_dbg = s->private; \ 65 table = em_perf_state_from_pd(em_dbg->pd); \ 66 val = table[em_dbg->ps_id].name; \ 99 / Create per-ps directory / in em_debug_create_ps() 115 seq_printf(s, "%pbl\n", cpumask_pr_args(to_cpumask(s->private))); in em_debug_cpus_show() 123 struct em_perf_domain *pd = s->private; in em_debug_flags_show() [all …]
/linux/Documentation/admin-guide/pm/
H A D	intel_pstate.rst	1 .. SPDX-License-Identifier: GPL-2.0 5 ``intel_pstate`` CPU Performance Scaling Driver 17 :doc:`CPU performance scaling subsystem <cpufreq>` in the Linux kernel 22 Documentation/admin-guide/pm/cpufreq.rst if you have not done that yet.] 24 For the processors supported by ``intel_pstate``, the P-state concept is broader 27 information about that). For this reason, the representation of P-states used 32 ``intel_pstate`` maps its internal representation of P-states to frequencies too 38 Since the hardware P-state selection interface used by ``intel_pstate`` is 39 available at the logical CPU level, the driver always works with individual 41 object corresponds to one logical CPU and ``CPUFreq`` policies are effectively [all …]

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