Lines Matching full:cpu
21 #include <linux/cpu.h>
33 #include <asm/cpu.h>
100 * to account for cpu idle period
136 * Stores the per cpu model P state limits and current P state.
191 * struct cpudata - Per CPU instance data storage
192 * @cpu: CPU number for this instance data
198 * @pstate: Stores P state limits for this CPU
199 * @vid: Stores VID limits for this CPU
221 * @sched_flags: Store scheduler flags for possible cross CPU update
226 * This structure stores per CPU instance data for all CPUs.
229 int cpu; member
269 * struct pstate_funcs - Per CPU model specific callbacks
275 * @get_cpu_scaling: Get frequency scaling factor for a given cpu
280 * Core and Atom CPU models have different way to get P State limits. This
284 int (*get_max)(int cpu);
285 int (*get_max_physical)(int cpu);
286 int (*get_min)(int cpu);
287 int (*get_turbo)(int cpu);
289 int (*get_cpu_scaling)(int cpu);
347 /* The work item is needed to avoid CPU hotplug locking issues */
357 static void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
363 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_set_itmt_prio()
372 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
379 sched_set_itmt_core_prio(cppc_perf.highest_perf, cpu); in intel_pstate_set_itmt_prio()
390 * This code can be run during CPU online under the in intel_pstate_set_itmt_prio()
391 * CPU hotplug locks, so sched_set_itmt_support() in intel_pstate_set_itmt_prio()
400 static int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
405 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_get_cppc_guaranteed()
415 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
420 * Compute the perf-to-frequency scaling factor for the given CPU if in intel_pstate_cppc_get_scaling()
423 if (!cppc_get_perf_caps(cpu, &cppc_perf) && in intel_pstate_cppc_get_scaling()
432 static inline void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
439 struct cpudata *cpu; in intel_pstate_init_acpi_perf_limits() local
444 intel_pstate_set_itmt_prio(policy->cpu); in intel_pstate_init_acpi_perf_limits()
451 cpu = all_cpu_data[policy->cpu]; in intel_pstate_init_acpi_perf_limits()
453 ret = acpi_processor_register_performance(&cpu->acpi_perf_data, in intel_pstate_init_acpi_perf_limits()
454 policy->cpu); in intel_pstate_init_acpi_perf_limits()
463 if (cpu->acpi_perf_data.control_register.space_id != in intel_pstate_init_acpi_perf_limits()
471 if (cpu->acpi_perf_data.state_count < 2) in intel_pstate_init_acpi_perf_limits()
474 pr_debug("CPU%u - ACPI _PSS perf data\n", policy->cpu); in intel_pstate_init_acpi_perf_limits()
475 for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { in intel_pstate_init_acpi_perf_limits()
477 (i == cpu->acpi_perf_data.state ? '*' : ' '), i, in intel_pstate_init_acpi_perf_limits()
478 (u32) cpu->acpi_perf_data.states[i].core_frequency, in intel_pstate_init_acpi_perf_limits()
479 (u32) cpu->acpi_perf_data.states[i].power, in intel_pstate_init_acpi_perf_limits()
480 (u32) cpu->acpi_perf_data.states[i].control); in intel_pstate_init_acpi_perf_limits()
483 cpu->valid_pss_table = true; in intel_pstate_init_acpi_perf_limits()
489 cpu->valid_pss_table = false; in intel_pstate_init_acpi_perf_limits()
490 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_init_acpi_perf_limits()
495 struct cpudata *cpu; in intel_pstate_exit_perf_limits() local
497 cpu = all_cpu_data[policy->cpu]; in intel_pstate_exit_perf_limits()
498 if (!cpu->valid_pss_table) in intel_pstate_exit_perf_limits()
501 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_exit_perf_limits()
519 static inline int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
524 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
530 static int intel_pstate_freq_to_hwp_rel(struct cpudata *cpu, int freq, in intel_pstate_freq_to_hwp_rel() argument
533 if (freq == cpu->pstate.turbo_freq) in intel_pstate_freq_to_hwp_rel()
534 return cpu->pstate.turbo_pstate; in intel_pstate_freq_to_hwp_rel()
536 if (freq == cpu->pstate.max_freq) in intel_pstate_freq_to_hwp_rel()
537 return cpu->pstate.max_pstate; in intel_pstate_freq_to_hwp_rel()
541 return freq / cpu->pstate.scaling; in intel_pstate_freq_to_hwp_rel()
543 return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
546 return DIV_ROUND_UP(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
549 static int intel_pstate_freq_to_hwp(struct cpudata *cpu, int freq) in intel_pstate_freq_to_hwp() argument
551 return intel_pstate_freq_to_hwp_rel(cpu, freq, CPUFREQ_RELATION_L); in intel_pstate_freq_to_hwp()
556 * @cpu: Target CPU.
560 * scaling factor between HWP performance levels and CPU frequency will be less
561 * than the scaling factor between P-state values and CPU frequency.
563 * In that case, adjust the CPU parameters used in computations accordingly.
565 static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu) in intel_pstate_hybrid_hwp_adjust() argument
567 int perf_ctl_max_phys = cpu->pstate.max_pstate_physical; in intel_pstate_hybrid_hwp_adjust()
568 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
569 int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_hybrid_hwp_adjust()
570 int scaling = cpu->pstate.scaling; in intel_pstate_hybrid_hwp_adjust()
573 pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys); in intel_pstate_hybrid_hwp_adjust()
574 pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo); in intel_pstate_hybrid_hwp_adjust()
575 pr_debug("CPU%d: perf_ctl_scaling = %d\n", cpu->cpu, perf_ctl_scaling); in intel_pstate_hybrid_hwp_adjust()
576 pr_debug("CPU%d: HWP_CAP guaranteed = %d\n", cpu->cpu, cpu->pstate.max_pstate); in intel_pstate_hybrid_hwp_adjust()
577 pr_debug("CPU%d: HWP_CAP highest = %d\n", cpu->cpu, cpu->pstate.turbo_pstate); in intel_pstate_hybrid_hwp_adjust()
578 pr_debug("CPU%d: HWP-to-frequency scaling factor: %d\n", cpu->cpu, scaling); in intel_pstate_hybrid_hwp_adjust()
580 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
582 cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
586 cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
588 freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
589 cpu->pstate.min_freq = freq; in intel_pstate_hybrid_hwp_adjust()
594 cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
608 struct cpudata *cpu = all_cpu_data[0]; in min_perf_pct_min() local
609 int turbo_pstate = cpu->pstate.turbo_pstate; in min_perf_pct_min()
612 (cpu->pstate.min_pstate * 100 / turbo_pstate) : 0; in min_perf_pct_min()
623 ret = rdmsrl_on_cpu(cpu_data->cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_get_epb()
640 epp = rdmsrl_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, in intel_pstate_get_epp()
654 static int intel_pstate_set_epb(int cpu, s16 pref) in intel_pstate_set_epb() argument
662 ret = rdmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_set_epb()
667 wrmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, epb); in intel_pstate_set_epb()
746 static int intel_pstate_set_epp(struct cpudata *cpu, u32 epp) in intel_pstate_set_epp() argument
755 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_set_epp()
764 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_set_epp()
765 ret = wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_set_epp()
767 cpu->epp_cached = epp; in intel_pstate_set_epp()
800 ret = intel_pstate_set_epb(cpu_data->cpu, epp); in intel_pstate_set_energy_pref_index()
827 struct cpudata *cpu = all_cpu_data[policy->cpu]; in store_energy_performance_preference() local
863 ret = intel_pstate_set_energy_pref_index(cpu, ret, raw, epp); in store_energy_performance_preference()
867 * target CPU before the EPP update and restarted after it, in store_energy_performance_preference()
872 epp = ret ? epp_values[ret] : cpu->epp_default; in store_energy_performance_preference()
874 if (cpu->epp_cached != epp) { in store_energy_performance_preference()
878 ret = intel_pstate_set_epp(cpu, epp); in store_energy_performance_preference()
895 struct cpudata *cpu_data = all_cpu_data[policy->cpu]; in show_energy_performance_preference()
912 struct cpudata *cpu = all_cpu_data[policy->cpu]; in show_base_frequency() local
915 ratio = intel_pstate_get_cppc_guaranteed(policy->cpu); in show_base_frequency()
919 rdmsrl_on_cpu(policy->cpu, MSR_HWP_CAPABILITIES, &cap); in show_base_frequency()
923 freq = ratio * cpu->pstate.scaling; in show_base_frequency()
924 if (cpu->pstate.scaling != cpu->pstate.perf_ctl_scaling) in show_base_frequency()
925 freq = rounddown(freq, cpu->pstate.perf_ctl_scaling); in show_base_frequency()
946 static void hybrid_set_cpu_capacity(struct cpudata *cpu) in hybrid_set_cpu_capacity() argument
948 arch_set_cpu_capacity(cpu->cpu, cpu->capacity_perf, in hybrid_set_cpu_capacity()
950 cpu->capacity_perf, in hybrid_set_cpu_capacity()
951 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
953 pr_debug("CPU%d: perf = %u, max. perf = %u, base perf = %d\n", cpu->cpu, in hybrid_set_cpu_capacity()
954 cpu->capacity_perf, hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
955 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
963 static void hybrid_get_capacity_perf(struct cpudata *cpu) in hybrid_get_capacity_perf() argument
966 cpu->capacity_perf = cpu->pstate.max_pstate_physical; in hybrid_get_capacity_perf()
970 cpu->capacity_perf = HWP_HIGHEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in hybrid_get_capacity_perf()
978 struct cpudata *cpu = all_cpu_data[cpunum]; in hybrid_set_capacity_of_cpus() local
980 if (cpu) in hybrid_set_capacity_of_cpus()
981 hybrid_set_cpu_capacity(cpu); in hybrid_set_capacity_of_cpus()
992 struct cpudata *cpu = all_cpu_data[cpunum]; in hybrid_update_cpu_capacity_scaling() local
994 if (!cpu) in hybrid_update_cpu_capacity_scaling()
998 * During initialization, CPU performance at full capacity needs in hybrid_update_cpu_capacity_scaling()
1002 hybrid_get_capacity_perf(cpu); in hybrid_update_cpu_capacity_scaling()
1009 if (cpu == hybrid_max_perf_cpu) in hybrid_update_cpu_capacity_scaling()
1012 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_cpu_capacity_scaling()
1013 max_cap_perf = cpu->capacity_perf; in hybrid_update_cpu_capacity_scaling()
1014 max_perf_cpu = cpu; in hybrid_update_cpu_capacity_scaling()
1023 /* Revert to the flat CPU capacity structure. */ in hybrid_update_cpu_capacity_scaling()
1045 * If hybrid_max_perf_cpu is set at this point, the hybrid CPU capacity in hybrid_init_cpu_capacity_scaling()
1081 static void __intel_pstate_get_hwp_cap(struct cpudata *cpu) in __intel_pstate_get_hwp_cap() argument
1085 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_CAPABILITIES, &cap); in __intel_pstate_get_hwp_cap()
1086 WRITE_ONCE(cpu->hwp_cap_cached, cap); in __intel_pstate_get_hwp_cap()
1087 cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(cap); in __intel_pstate_get_hwp_cap()
1088 cpu->pstate.turbo_pstate = HWP_HIGHEST_PERF(cap); in __intel_pstate_get_hwp_cap()
1091 static void intel_pstate_get_hwp_cap(struct cpudata *cpu) in intel_pstate_get_hwp_cap() argument
1093 int scaling = cpu->pstate.scaling; in intel_pstate_get_hwp_cap()
1095 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_hwp_cap()
1097 cpu->pstate.max_freq = cpu->pstate.max_pstate * scaling; in intel_pstate_get_hwp_cap()
1098 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; in intel_pstate_get_hwp_cap()
1099 if (scaling != cpu->pstate.perf_ctl_scaling) { in intel_pstate_get_hwp_cap()
1100 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_get_hwp_cap()
1102 cpu->pstate.max_freq = rounddown(cpu->pstate.max_freq, in intel_pstate_get_hwp_cap()
1104 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_freq, in intel_pstate_get_hwp_cap()
1109 static void hybrid_update_capacity(struct cpudata *cpu) in hybrid_update_capacity() argument
1119 * The maximum performance of the CPU may have changed, but assume in hybrid_update_capacity()
1124 intel_pstate_get_hwp_cap(cpu); in hybrid_update_capacity()
1126 hybrid_get_capacity_perf(cpu); in hybrid_update_capacity()
1127 /* Should hybrid_max_perf_cpu be replaced by this CPU? */ in hybrid_update_capacity()
1128 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_capacity()
1129 hybrid_max_perf_cpu = cpu; in hybrid_update_capacity()
1134 /* If this CPU is hybrid_max_perf_cpu, should it be replaced? */ in hybrid_update_capacity()
1135 if (cpu == hybrid_max_perf_cpu && cpu->capacity_perf < max_cap_perf) { in hybrid_update_capacity()
1140 hybrid_set_cpu_capacity(cpu); in hybrid_update_capacity()
1146 static void intel_pstate_hwp_set(unsigned int cpu) in intel_pstate_hwp_set() argument
1148 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_hwp_set()
1159 rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); in intel_pstate_hwp_set()
1202 intel_pstate_set_epb(cpu, epp); in intel_pstate_hwp_set()
1206 wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_set()
1211 static void intel_pstate_hwp_offline(struct cpudata *cpu) in intel_pstate_hwp_offline() argument
1213 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_offline()
1216 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_hwp_offline()
1225 value |= HWP_ENERGY_PERF_PREFERENCE(cpu->epp_cached); in intel_pstate_hwp_offline()
1228 * the CPU is brought back online again and the "performance" in intel_pstate_hwp_offline()
1231 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_hwp_offline()
1240 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_hwp_offline()
1243 min_perf = HWP_LOWEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in intel_pstate_hwp_offline()
1253 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_offline()
1263 if (hybrid_max_perf_cpu == cpu) in intel_pstate_hwp_offline()
1268 /* Reset the capacity of the CPU going offline to the initial value. */ in intel_pstate_hwp_offline()
1269 hybrid_clear_cpu_capacity(cpu->cpu); in intel_pstate_hwp_offline()
1296 static void intel_pstate_hwp_reenable(struct cpudata *cpu) in intel_pstate_hwp_reenable() argument
1298 intel_pstate_hwp_enable(cpu); in intel_pstate_hwp_reenable()
1299 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, READ_ONCE(cpu->hwp_req_cached)); in intel_pstate_hwp_reenable()
1304 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_suspend() local
1306 pr_debug("CPU %d suspending\n", cpu->cpu); in intel_pstate_suspend()
1308 cpu->suspended = true; in intel_pstate_suspend()
1311 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_suspend()
1318 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_resume() local
1320 pr_debug("CPU %d resuming\n", cpu->cpu); in intel_pstate_resume()
1328 if (cpu->suspended && hwp_active) { in intel_pstate_resume()
1332 intel_pstate_hwp_reenable(cpu); in intel_pstate_resume()
1337 cpu->suspended = false; in intel_pstate_resume()
1344 int cpu; in intel_pstate_update_policies() local
1346 for_each_possible_cpu(cpu) in intel_pstate_update_policies()
1347 cpufreq_update_policy(cpu); in intel_pstate_update_policies()
1362 static void intel_pstate_update_limits(unsigned int cpu) in intel_pstate_update_limits() argument
1364 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in intel_pstate_update_limits()
1370 cpudata = all_cpu_data[cpu]; in intel_pstate_update_limits()
1386 int cpu; in intel_pstate_update_limits_for_all() local
1388 for_each_possible_cpu(cpu) { in intel_pstate_update_limits_for_all()
1389 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in intel_pstate_update_limits_for_all()
1394 __intel_pstate_update_max_freq(all_cpu_data[cpu], policy); in intel_pstate_update_limits_for_all()
1446 struct cpudata *cpu; in show_turbo_pct() local
1457 cpu = all_cpu_data[0]; in show_turbo_pct()
1459 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1460 no_turbo = cpu->pstate.max_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1472 struct cpudata *cpu; in show_num_pstates() local
1482 cpu = all_cpu_data[0]; in show_num_pstates()
1483 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_num_pstates()
1546 struct cpudata *cpu = all_cpu_data[0]; in store_no_turbo() local
1547 int pct = cpu->pstate.max_pstate * 100 / cpu->pstate.turbo_pstate; in store_no_turbo()
1572 struct cpudata *cpu = all_cpu_data[i]; in update_qos_request() local
1586 intel_pstate_get_hwp_cap(cpu); in update_qos_request()
1595 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * perf_pct, 100); in update_qos_request()
1598 pr_warn("Failed to update freq constraint: CPU%d\n", i); in update_qos_request()
1771 * If per cpu limits are enforced there are no global limits, so in intel_pstate_sysfs_expose_params()
1837 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpudata->cpu); in intel_pstate_notify_work()
1852 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_notify_work()
1903 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_disable_hwp_interrupt()
1906 cancel_work = cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_disable_hwp_interrupt()
1924 cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_enable_hwp_interrupt()
1931 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, interrupt_mask); in intel_pstate_enable_hwp_interrupt()
1932 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_enable_hwp_interrupt()
1953 * If this CPU gen doesn't call for change in balance_perf in intel_pstate_update_epp_defaults()
1971 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_hwp_enable()
1973 wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); in intel_pstate_hwp_enable()
2077 static int core_get_min_pstate(int cpu) in core_get_min_pstate() argument
2081 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_min_pstate()
2085 static int core_get_max_pstate_physical(int cpu) in core_get_max_pstate_physical() argument
2089 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_max_pstate_physical()
2093 static int core_get_tdp_ratio(int cpu, u64 plat_info) in core_get_tdp_ratio() argument
2103 err = rdmsrl_safe_on_cpu(cpu, MSR_CONFIG_TDP_CONTROL, &tdp_ctrl); in core_get_tdp_ratio()
2109 err = rdmsrl_safe_on_cpu(cpu, tdp_msr, &tdp_ratio); in core_get_tdp_ratio()
2126 static int core_get_max_pstate(int cpu) in core_get_max_pstate() argument
2134 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &plat_info); in core_get_max_pstate()
2137 tdp_ratio = core_get_tdp_ratio(cpu, plat_info); in core_get_max_pstate()
2146 err = rdmsrl_safe_on_cpu(cpu, MSR_TURBO_ACTIVATION_RATIO, &tar); in core_get_max_pstate()
2161 static int core_get_turbo_pstate(int cpu) in core_get_turbo_pstate() argument
2166 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in core_get_turbo_pstate()
2167 nont = core_get_max_pstate(cpu); in core_get_turbo_pstate()
2190 static int knl_get_turbo_pstate(int cpu) in knl_get_turbo_pstate() argument
2195 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in knl_get_turbo_pstate()
2196 nont = core_get_max_pstate(cpu); in knl_get_turbo_pstate()
2210 static int hwp_get_cpu_scaling(int cpu) in hwp_get_cpu_scaling() argument
2215 smp_call_function_single(cpu, hybrid_get_type, &cpu_type, 1); in hwp_get_cpu_scaling()
2234 * the CPU type is not one of the above, so use CPPC to compute the in hwp_get_cpu_scaling()
2235 * scaling factor for this CPU. in hwp_get_cpu_scaling()
2237 return intel_pstate_cppc_get_scaling(cpu); in hwp_get_cpu_scaling()
2240 static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) in intel_pstate_set_pstate() argument
2242 trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_set_pstate()
2243 cpu->pstate.current_pstate = pstate; in intel_pstate_set_pstate()
2246 * the CPU being updated, so force the register update to run on the in intel_pstate_set_pstate()
2247 * right CPU. in intel_pstate_set_pstate()
2249 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_pstate_set_pstate()
2250 pstate_funcs.get_val(cpu, pstate)); in intel_pstate_set_pstate()
2253 static void intel_pstate_set_min_pstate(struct cpudata *cpu) in intel_pstate_set_min_pstate() argument
2255 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); in intel_pstate_set_min_pstate()
2258 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) in intel_pstate_get_cpu_pstates() argument
2260 int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu->cpu); in intel_pstate_get_cpu_pstates()
2263 cpu->pstate.min_pstate = pstate_funcs.get_min(cpu->cpu); in intel_pstate_get_cpu_pstates()
2264 cpu->pstate.max_pstate_physical = perf_ctl_max_phys; in intel_pstate_get_cpu_pstates()
2265 cpu->pstate.perf_ctl_scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2268 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_cpu_pstates()
2271 cpu->pstate.scaling = pstate_funcs.get_cpu_scaling(cpu->cpu); in intel_pstate_get_cpu_pstates()
2272 if (cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2273 intel_pstate_hybrid_hwp_adjust(cpu); in intel_pstate_get_cpu_pstates()
2277 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2280 * If the CPU is going online for the first time and it was in intel_pstate_get_cpu_pstates()
2283 hybrid_update_capacity(cpu); in intel_pstate_get_cpu_pstates()
2285 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2286 cpu->pstate.max_pstate = pstate_funcs.get_max(cpu->cpu); in intel_pstate_get_cpu_pstates()
2287 cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_get_cpu_pstates()
2290 if (cpu->pstate.scaling == perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2291 cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2292 cpu->pstate.max_freq = cpu->pstate.max_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2293 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2297 cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift(); in intel_pstate_get_cpu_pstates()
2300 pstate_funcs.get_vid(cpu); in intel_pstate_get_cpu_pstates()
2302 intel_pstate_set_min_pstate(cpu); in intel_pstate_get_cpu_pstates()
2313 static inline void intel_pstate_hwp_boost_up(struct cpudata *cpu) in intel_pstate_hwp_boost_up() argument
2315 u64 hwp_req = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_boost_up()
2316 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_pstate_hwp_boost_up()
2336 if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit) in intel_pstate_hwp_boost_up()
2339 if (!cpu->hwp_boost_min) in intel_pstate_hwp_boost_up()
2340 cpu->hwp_boost_min = min_limit; in intel_pstate_hwp_boost_up()
2345 if (cpu->hwp_boost_min < boost_level1) in intel_pstate_hwp_boost_up()
2346 cpu->hwp_boost_min = boost_level1; in intel_pstate_hwp_boost_up()
2347 else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(hwp_cap)) in intel_pstate_hwp_boost_up()
2348 cpu->hwp_boost_min = HWP_GUARANTEED_PERF(hwp_cap); in intel_pstate_hwp_boost_up()
2349 else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(hwp_cap) && in intel_pstate_hwp_boost_up()
2351 cpu->hwp_boost_min = max_limit; in intel_pstate_hwp_boost_up()
2355 hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min; in intel_pstate_hwp_boost_up()
2357 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_up()
2360 static inline void intel_pstate_hwp_boost_down(struct cpudata *cpu) in intel_pstate_hwp_boost_down() argument
2362 if (cpu->hwp_boost_min) { in intel_pstate_hwp_boost_down()
2366 expired = time_after64(cpu->sample.time, cpu->last_update + in intel_pstate_hwp_boost_down()
2369 wrmsrl(MSR_HWP_REQUEST, cpu->hwp_req_cached); in intel_pstate_hwp_boost_down()
2370 cpu->hwp_boost_min = 0; in intel_pstate_hwp_boost_down()
2373 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_down()
2376 static inline void intel_pstate_update_util_hwp_local(struct cpudata *cpu, in intel_pstate_update_util_hwp_local() argument
2379 cpu->sample.time = time; in intel_pstate_update_util_hwp_local()
2381 if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) { in intel_pstate_update_util_hwp_local()
2384 cpu->sched_flags = 0; in intel_pstate_update_util_hwp_local()
2388 * some IO bound activity is scheduled on this CPU with just in intel_pstate_update_util_hwp_local()
2392 if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC)) in intel_pstate_update_util_hwp_local()
2395 cpu->last_io_update = time; in intel_pstate_update_util_hwp_local()
2398 intel_pstate_hwp_boost_up(cpu); in intel_pstate_update_util_hwp_local()
2401 intel_pstate_hwp_boost_down(cpu); in intel_pstate_update_util_hwp_local()
2408 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util_hwp() local
2410 cpu->sched_flags |= flags; in intel_pstate_update_util_hwp()
2412 if (smp_processor_id() == cpu->cpu) in intel_pstate_update_util_hwp()
2413 intel_pstate_update_util_hwp_local(cpu, time); in intel_pstate_update_util_hwp()
2416 static inline void intel_pstate_calc_avg_perf(struct cpudata *cpu) in intel_pstate_calc_avg_perf() argument
2418 struct sample *sample = &cpu->sample; in intel_pstate_calc_avg_perf()
2423 static inline bool intel_pstate_sample(struct cpudata *cpu, u64 time) in intel_pstate_sample() argument
2433 if (cpu->prev_mperf == mperf || cpu->prev_tsc == tsc) { in intel_pstate_sample()
2439 cpu->last_sample_time = cpu->sample.time; in intel_pstate_sample()
2440 cpu->sample.time = time; in intel_pstate_sample()
2441 cpu->sample.aperf = aperf; in intel_pstate_sample()
2442 cpu->sample.mperf = mperf; in intel_pstate_sample()
2443 cpu->sample.tsc = tsc; in intel_pstate_sample()
2444 cpu->sample.aperf -= cpu->prev_aperf; in intel_pstate_sample()
2445 cpu->sample.mperf -= cpu->prev_mperf; in intel_pstate_sample()
2446 cpu->sample.tsc -= cpu->prev_tsc; in intel_pstate_sample()
2448 cpu->prev_aperf = aperf; in intel_pstate_sample()
2449 cpu->prev_mperf = mperf; in intel_pstate_sample()
2450 cpu->prev_tsc = tsc; in intel_pstate_sample()
2458 if (cpu->last_sample_time) { in intel_pstate_sample()
2459 intel_pstate_calc_avg_perf(cpu); in intel_pstate_sample()
2465 static inline int32_t get_avg_frequency(struct cpudata *cpu) in get_avg_frequency() argument
2467 return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz); in get_avg_frequency()
2470 static inline int32_t get_avg_pstate(struct cpudata *cpu) in get_avg_pstate() argument
2472 return mul_ext_fp(cpu->pstate.max_pstate_physical, in get_avg_pstate()
2473 cpu->sample.core_avg_perf); in get_avg_pstate()
2476 static inline int32_t get_target_pstate(struct cpudata *cpu) in get_target_pstate() argument
2478 struct sample *sample = &cpu->sample; in get_target_pstate()
2482 busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift, in get_target_pstate()
2485 if (busy_frac < cpu->iowait_boost) in get_target_pstate()
2486 busy_frac = cpu->iowait_boost; in get_target_pstate()
2491 cpu->pstate.max_pstate : cpu->pstate.turbo_pstate; in get_target_pstate()
2494 if (target < cpu->pstate.min_pstate) in get_target_pstate()
2495 target = cpu->pstate.min_pstate; in get_target_pstate()
2501 * loss related to moving the workload from one CPU to another within in get_target_pstate()
2504 avg_pstate = get_avg_pstate(cpu); in get_target_pstate()
2511 static int intel_pstate_prepare_request(struct cpudata *cpu, int pstate) in intel_pstate_prepare_request() argument
2513 int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); in intel_pstate_prepare_request()
2514 int max_pstate = max(min_pstate, cpu->max_perf_ratio); in intel_pstate_prepare_request()
2519 static void intel_pstate_update_pstate(struct cpudata *cpu, int pstate) in intel_pstate_update_pstate() argument
2521 if (pstate == cpu->pstate.current_pstate) in intel_pstate_update_pstate()
2524 cpu->pstate.current_pstate = pstate; in intel_pstate_update_pstate()
2525 wrmsrl(MSR_IA32_PERF_CTL, pstate_funcs.get_val(cpu, pstate)); in intel_pstate_update_pstate()
2528 static void intel_pstate_adjust_pstate(struct cpudata *cpu) in intel_pstate_adjust_pstate() argument
2530 int from = cpu->pstate.current_pstate; in intel_pstate_adjust_pstate()
2534 target_pstate = get_target_pstate(cpu); in intel_pstate_adjust_pstate()
2535 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_pstate_adjust_pstate()
2536 trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_adjust_pstate()
2537 intel_pstate_update_pstate(cpu, target_pstate); in intel_pstate_adjust_pstate()
2539 sample = &cpu->sample; in intel_pstate_adjust_pstate()
2543 cpu->pstate.current_pstate, in intel_pstate_adjust_pstate()
2547 get_avg_frequency(cpu), in intel_pstate_adjust_pstate()
2548 fp_toint(cpu->iowait_boost * 100)); in intel_pstate_adjust_pstate()
2554 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util() local
2558 if (smp_processor_id() != cpu->cpu) in intel_pstate_update_util()
2561 delta_ns = time - cpu->last_update; in intel_pstate_update_util()
2563 /* Start over if the CPU may have been idle. */ in intel_pstate_update_util()
2565 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2566 } else if (cpu->iowait_boost >= ONE_EIGHTH_FP) { in intel_pstate_update_util()
2567 cpu->iowait_boost <<= 1; in intel_pstate_update_util()
2568 if (cpu->iowait_boost > int_tofp(1)) in intel_pstate_update_util()
2569 cpu->iowait_boost = int_tofp(1); in intel_pstate_update_util()
2571 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2573 } else if (cpu->iowait_boost) { in intel_pstate_update_util()
2574 /* Clear iowait_boost if the CPU may have been idle. */ in intel_pstate_update_util()
2576 cpu->iowait_boost = 0; in intel_pstate_update_util()
2578 cpu->iowait_boost >>= 1; in intel_pstate_update_util()
2580 cpu->last_update = time; in intel_pstate_update_util()
2581 delta_ns = time - cpu->sample.time; in intel_pstate_update_util()
2585 if (intel_pstate_sample(cpu, time)) in intel_pstate_update_util()
2586 intel_pstate_adjust_pstate(cpu); in intel_pstate_update_util()
2685 struct cpudata *cpu; in intel_pstate_init_cpu() local
2687 cpu = all_cpu_data[cpunum]; in intel_pstate_init_cpu()
2689 if (!cpu) { in intel_pstate_init_cpu()
2690 cpu = kzalloc(sizeof(*cpu), GFP_KERNEL); in intel_pstate_init_cpu()
2691 if (!cpu) in intel_pstate_init_cpu()
2694 WRITE_ONCE(all_cpu_data[cpunum], cpu); in intel_pstate_init_cpu()
2696 cpu->cpu = cpunum; in intel_pstate_init_cpu()
2698 cpu->epp_default = -EINVAL; in intel_pstate_init_cpu()
2701 intel_pstate_hwp_enable(cpu); in intel_pstate_init_cpu()
2709 * S3 if the CPU was offline during the whole system/resume in intel_pstate_init_cpu()
2712 intel_pstate_hwp_reenable(cpu); in intel_pstate_init_cpu()
2715 cpu->epp_powersave = -EINVAL; in intel_pstate_init_cpu()
2716 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_init_cpu()
2718 intel_pstate_get_cpu_pstates(cpu); in intel_pstate_init_cpu()
2720 pr_debug("controlling: cpu %d\n", cpunum); in intel_pstate_init_cpu()
2727 struct cpudata *cpu = all_cpu_data[cpu_num]; in intel_pstate_set_update_util_hook() local
2732 if (cpu->update_util_set) in intel_pstate_set_update_util_hook()
2736 cpu->sample.time = 0; in intel_pstate_set_update_util_hook()
2737 cpufreq_add_update_util_hook(cpu_num, &cpu->update_util, in intel_pstate_set_update_util_hook()
2741 cpu->update_util_set = true; in intel_pstate_set_update_util_hook()
2744 static void intel_pstate_clear_update_util_hook(unsigned int cpu) in intel_pstate_clear_update_util_hook() argument
2746 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_clear_update_util_hook()
2751 cpufreq_remove_update_util_hook(cpu); in intel_pstate_clear_update_util_hook()
2756 static int intel_pstate_get_max_freq(struct cpudata *cpu) in intel_pstate_get_max_freq() argument
2759 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_get_max_freq()
2762 static void intel_pstate_update_perf_limits(struct cpudata *cpu, in intel_pstate_update_perf_limits() argument
2766 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_update_perf_limits()
2782 if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_update_perf_limits()
2786 max_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2788 min_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2791 pr_debug("cpu:%d min_policy_perf:%d max_policy_perf:%d\n", in intel_pstate_update_perf_limits()
2792 cpu->cpu, min_policy_perf, max_policy_perf); in intel_pstate_update_perf_limits()
2796 cpu->min_perf_ratio = min_policy_perf; in intel_pstate_update_perf_limits()
2797 cpu->max_perf_ratio = max_policy_perf; in intel_pstate_update_perf_limits()
2799 int turbo_max = cpu->pstate.turbo_pstate; in intel_pstate_update_perf_limits()
2807 pr_debug("cpu:%d global_min:%d global_max:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2810 cpu->min_perf_ratio = max(min_policy_perf, global_min); in intel_pstate_update_perf_limits()
2811 cpu->min_perf_ratio = min(cpu->min_perf_ratio, max_policy_perf); in intel_pstate_update_perf_limits()
2812 cpu->max_perf_ratio = min(max_policy_perf, global_max); in intel_pstate_update_perf_limits()
2813 cpu->max_perf_ratio = max(min_policy_perf, cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2816 cpu->min_perf_ratio = min(cpu->min_perf_ratio, in intel_pstate_update_perf_limits()
2817 cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2820 pr_debug("cpu:%d max_perf_ratio:%d min_perf_ratio:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2821 cpu->max_perf_ratio, in intel_pstate_update_perf_limits()
2822 cpu->min_perf_ratio); in intel_pstate_update_perf_limits()
2827 struct cpudata *cpu; in intel_pstate_set_policy() local
2835 cpu = all_cpu_data[policy->cpu]; in intel_pstate_set_policy()
2836 cpu->policy = policy->policy; in intel_pstate_set_policy()
2840 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_pstate_set_policy()
2842 if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_set_policy()
2843 int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); in intel_pstate_set_policy()
2849 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2850 intel_pstate_set_pstate(cpu, pstate); in intel_pstate_set_policy()
2852 intel_pstate_set_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2862 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2863 intel_pstate_hwp_set(policy->cpu); in intel_pstate_set_policy()
2876 static void intel_pstate_adjust_policy_max(struct cpudata *cpu, in intel_pstate_adjust_policy_max() argument
2880 cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && in intel_pstate_adjust_policy_max()
2882 policy->max > cpu->pstate.max_freq) { in intel_pstate_adjust_policy_max()
2888 static void intel_pstate_verify_cpu_policy(struct cpudata *cpu, in intel_pstate_verify_cpu_policy() argument
2894 intel_pstate_get_hwp_cap(cpu); in intel_pstate_verify_cpu_policy()
2896 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_verify_cpu_policy()
2898 max_freq = intel_pstate_get_max_freq(cpu); in intel_pstate_verify_cpu_policy()
2902 intel_pstate_adjust_policy_max(cpu, policy); in intel_pstate_verify_cpu_policy()
2907 intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy); in intel_pstate_verify_policy()
2914 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_offline() local
2916 pr_debug("CPU %d going offline\n", cpu->cpu); in intel_cpufreq_cpu_offline()
2918 if (cpu->suspended) in intel_cpufreq_cpu_offline()
2922 * If the CPU is an SMT thread and it goes offline with the performance in intel_cpufreq_cpu_offline()
2925 * performance on CPU offline to prevent that from happening. in intel_cpufreq_cpu_offline()
2928 intel_pstate_hwp_offline(cpu); in intel_cpufreq_cpu_offline()
2930 intel_pstate_set_min_pstate(cpu); in intel_cpufreq_cpu_offline()
2939 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_online() local
2941 pr_debug("CPU %d going online\n", cpu->cpu); in intel_pstate_cpu_online()
2950 intel_pstate_hwp_reenable(cpu); in intel_pstate_cpu_online()
2951 cpu->suspended = false; in intel_pstate_cpu_online()
2953 hybrid_update_capacity(cpu); in intel_pstate_cpu_online()
2961 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_cpu_offline()
2968 pr_debug("CPU %d exiting\n", policy->cpu); in intel_pstate_cpu_exit()
2975 struct cpudata *cpu; in __intel_pstate_cpu_init() local
2978 rc = intel_pstate_init_cpu(policy->cpu); in __intel_pstate_cpu_init()
2982 cpu = all_cpu_data[policy->cpu]; in __intel_pstate_cpu_init()
2984 cpu->max_perf_ratio = 0xFF; in __intel_pstate_cpu_init()
2985 cpu->min_perf_ratio = 0; in __intel_pstate_cpu_init()
2988 policy->cpuinfo.min_freq = cpu->pstate.min_freq; in __intel_pstate_cpu_init()
2990 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in __intel_pstate_cpu_init()
3016 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_init() local
3018 cpu->epp_cached = intel_pstate_get_epp(cpu, 0); in intel_pstate_cpu_init()
3040 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_verify_policy() local
3042 intel_pstate_verify_cpu_policy(cpu, policy); in intel_cpufreq_verify_policy()
3043 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_cpufreq_verify_policy()
3064 static void intel_cpufreq_trace(struct cpudata *cpu, unsigned int trace_type, int old_pstate) in intel_cpufreq_trace() argument
3071 if (!intel_pstate_sample(cpu, ktime_get())) in intel_cpufreq_trace()
3074 sample = &cpu->sample; in intel_cpufreq_trace()
3078 cpu->pstate.current_pstate, in intel_cpufreq_trace()
3082 get_avg_frequency(cpu), in intel_cpufreq_trace()
3083 fp_toint(cpu->iowait_boost * 100)); in intel_cpufreq_trace()
3086 static void intel_cpufreq_hwp_update(struct cpudata *cpu, u32 min, u32 max, in intel_cpufreq_hwp_update() argument
3089 u64 prev = READ_ONCE(cpu->hwp_req_cached), value = prev; in intel_cpufreq_hwp_update()
3103 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_hwp_update()
3107 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_hwp_update()
3110 static void intel_cpufreq_perf_ctl_update(struct cpudata *cpu, in intel_cpufreq_perf_ctl_update() argument
3115 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
3117 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_cpufreq_perf_ctl_update()
3118 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
3124 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_update_pstate() local
3125 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_update_pstate()
3127 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_cpufreq_update_pstate()
3130 target_pstate : cpu->max_perf_ratio; in intel_cpufreq_update_pstate()
3132 intel_cpufreq_hwp_update(cpu, target_pstate, max_pstate, 0, in intel_cpufreq_update_pstate()
3135 intel_cpufreq_perf_ctl_update(cpu, target_pstate, fast_switch); in intel_cpufreq_update_pstate()
3138 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_update_pstate()
3140 intel_cpufreq_trace(cpu, fast_switch ? INTEL_PSTATE_TRACE_FAST_SWITCH : in intel_cpufreq_update_pstate()
3150 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_target() local
3159 target_pstate = intel_pstate_freq_to_hwp_rel(cpu, freqs.new, relation); in intel_cpufreq_target()
3162 freqs.new = target_pstate * cpu->pstate.scaling; in intel_cpufreq_target()
3172 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_fast_switch() local
3175 target_pstate = intel_pstate_freq_to_hwp(cpu, target_freq); in intel_cpufreq_fast_switch()
3179 return target_pstate * cpu->pstate.scaling; in intel_cpufreq_fast_switch()
3187 struct cpudata *cpu = all_cpu_data[cpunum]; in intel_cpufreq_adjust_perf() local
3188 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_cpufreq_adjust_perf()
3189 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_adjust_perf()
3206 if (min_pstate < cpu->pstate.min_pstate) in intel_cpufreq_adjust_perf()
3207 min_pstate = cpu->pstate.min_pstate; in intel_cpufreq_adjust_perf()
3209 if (min_pstate < cpu->min_perf_ratio) in intel_cpufreq_adjust_perf()
3210 min_pstate = cpu->min_perf_ratio; in intel_cpufreq_adjust_perf()
3212 if (min_pstate > cpu->max_perf_ratio) in intel_cpufreq_adjust_perf()
3213 min_pstate = cpu->max_perf_ratio; in intel_cpufreq_adjust_perf()
3215 max_pstate = min(cap_pstate, cpu->max_perf_ratio); in intel_cpufreq_adjust_perf()
3221 intel_cpufreq_hwp_update(cpu, min_pstate, max_pstate, target_pstate, true); in intel_cpufreq_adjust_perf()
3223 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_adjust_perf()
3224 intel_cpufreq_trace(cpu, INTEL_PSTATE_TRACE_FAST_SWITCH, old_pstate); in intel_cpufreq_adjust_perf()
3230 struct cpudata *cpu; in intel_cpufreq_cpu_init() local
3234 dev = get_cpu_device(policy->cpu); in intel_cpufreq_cpu_init()
3252 cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_init()
3259 intel_pstate_get_hwp_cap(cpu); in intel_cpufreq_cpu_init()
3261 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, &value); in intel_cpufreq_cpu_init()
3262 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_cpu_init()
3264 cpu->epp_cached = intel_pstate_get_epp(cpu, value); in intel_cpufreq_cpu_init()
3269 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.min_perf_pct, 100); in intel_cpufreq_cpu_init()
3278 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.max_perf_pct, 100); in intel_cpufreq_cpu_init()
3319 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_suspend() local
3320 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_cpufreq_suspend()
3328 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_suspend()
3329 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_suspend()
3354 unsigned int cpu; in intel_pstate_driver_cleanup() local
3357 for_each_online_cpu(cpu) { in intel_pstate_driver_cleanup()
3358 if (all_cpu_data[cpu]) { in intel_pstate_driver_cleanup()
3360 intel_pstate_clear_update_util_hook(cpu); in intel_pstate_driver_cleanup()
3362 kfree(all_cpu_data[cpu]); in intel_pstate_driver_cleanup()
3363 WRITE_ONCE(all_cpu_data[cpu], NULL); in intel_pstate_driver_cleanup()
3730 pr_info("CPU model not supported\n"); in intel_pstate_init()