Lines Matching +full:sample +full:- +full:time
1 // SPDX-License-Identifier: GPL-2.0-only
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
97 * performance during last sample period
102 * read from APERF MSR between last and current sample
104 * read from MPERF MSR between last and current sample
105 * @tsc: Difference of time stamp counter between last and
106 * current sample
107 * @time: Current time from scheduler
109 * This structure is used in the cpudata structure to store performance sample
112 struct sample { struct
118 u64 time; member
122 * struct pstate_data - Store P state data
129 * @perf_ctl_scaling: PERF_CTL P-state to frequency scaling factor
152 * struct vid_data - Stores voltage information data
157 * @ratio: Ratio of (vid max - vid min) /
158 * (max P state - Min P State)
172 * struct global_params - Global parameters, mostly tunable via sysfs.
173 * @no_turbo: Whether or not to use turbo P-states.
174 * @turbo_disabled: Whether or not turbo P-states are available at all,
176 * not the maximum reported turbo P-state is different from
177 * the maximum reported non-turbo one.
179 * P-state capacity.
181 * P-state capacity.
191 * struct cpudata - Per CPU instance data storage
196 * @iowait_boost: iowait-related boost fraction
197 * @last_update: Time of the last update.
200 * @last_sample_time: Last Sample time
205 * @sample: Storage for storing last Sample data
216 * @epp_cached: Cached HWP energy-performance preference value
219 * @last_io_update: Last time when IO wake flag was set
245 struct sample sample; member
273 * struct pstate_funcs - Per CPU model specific callbacks
377 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
382 * update them at any time after it has been called. in intel_pstate_set_itmt_prio()
425 * Compute the perf-to-frequency scaling factor for the given CPU if in intel_pstate_cppc_get_scaling()
449 intel_pstate_set_itmt_prio(policy->cpu); in intel_pstate_init_acpi_perf_limits()
456 cpu = all_cpu_data[policy->cpu]; in intel_pstate_init_acpi_perf_limits()
458 ret = acpi_processor_register_performance(&cpu->acpi_perf_data, in intel_pstate_init_acpi_perf_limits()
459 policy->cpu); in intel_pstate_init_acpi_perf_limits()
468 if (cpu->acpi_perf_data.control_register.space_id != in intel_pstate_init_acpi_perf_limits()
476 if (cpu->acpi_perf_data.state_count < 2) in intel_pstate_init_acpi_perf_limits()
479 pr_debug("CPU%u - ACPI _PSS perf data\n", policy->cpu); in intel_pstate_init_acpi_perf_limits()
480 for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { in intel_pstate_init_acpi_perf_limits()
482 (i == cpu->acpi_perf_data.state ? '*' : ' '), i, in intel_pstate_init_acpi_perf_limits()
483 (u32) cpu->acpi_perf_data.states[i].core_frequency, in intel_pstate_init_acpi_perf_limits()
484 (u32) cpu->acpi_perf_data.states[i].power, in intel_pstate_init_acpi_perf_limits()
485 (u32) cpu->acpi_perf_data.states[i].control); in intel_pstate_init_acpi_perf_limits()
488 cpu->valid_pss_table = true; in intel_pstate_init_acpi_perf_limits()
494 cpu->valid_pss_table = false; in intel_pstate_init_acpi_perf_limits()
495 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_init_acpi_perf_limits()
502 cpu = all_cpu_data[policy->cpu]; in intel_pstate_exit_perf_limits()
503 if (!cpu->valid_pss_table) in intel_pstate_exit_perf_limits()
506 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_exit_perf_limits()
526 return -ENOTSUPP; in intel_pstate_get_cppc_guaranteed()
538 if (freq == cpu->pstate.turbo_freq) in intel_pstate_freq_to_hwp_rel()
539 return cpu->pstate.turbo_pstate; in intel_pstate_freq_to_hwp_rel()
541 if (freq == cpu->pstate.max_freq) in intel_pstate_freq_to_hwp_rel()
542 return cpu->pstate.max_pstate; in intel_pstate_freq_to_hwp_rel()
546 return freq / cpu->pstate.scaling; in intel_pstate_freq_to_hwp_rel()
548 return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
551 return DIV_ROUND_UP(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
560 * intel_pstate_hybrid_hwp_adjust - Calibrate HWP performance levels.
564 * P-states accessible through the PERF_CTL interface. If that happens, the
566 * than the scaling factor between P-state values and CPU frequency.
572 int perf_ctl_max_phys = cpu->pstate.max_pstate_physical; in intel_pstate_hybrid_hwp_adjust()
573 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
574 int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_hybrid_hwp_adjust()
575 int scaling = cpu->pstate.scaling; in intel_pstate_hybrid_hwp_adjust()
578 pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys); in intel_pstate_hybrid_hwp_adjust()
579 pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo); in intel_pstate_hybrid_hwp_adjust()
580 pr_debug("CPU%d: perf_ctl_scaling = %d\n", cpu->cpu, perf_ctl_scaling); in intel_pstate_hybrid_hwp_adjust()
581 pr_debug("CPU%d: HWP_CAP guaranteed = %d\n", cpu->cpu, cpu->pstate.max_pstate); in intel_pstate_hybrid_hwp_adjust()
582 pr_debug("CPU%d: HWP_CAP highest = %d\n", cpu->cpu, cpu->pstate.turbo_pstate); in intel_pstate_hybrid_hwp_adjust()
583 pr_debug("CPU%d: HWP-to-frequency scaling factor: %d\n", cpu->cpu, scaling); in intel_pstate_hybrid_hwp_adjust()
585 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
587 cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
591 cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
593 freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
594 cpu->pstate.min_freq = freq; in intel_pstate_hybrid_hwp_adjust()
596 * Cast the min P-state value retrieved via pstate_funcs.get_min() to in intel_pstate_hybrid_hwp_adjust()
599 cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
617 int turbo_pstate = cpu->pstate.turbo_pstate; in min_perf_pct_min()
620 (cpu->pstate.min_pstate * 100 / turbo_pstate) : 0; in min_perf_pct_min()
629 return -ENXIO; in intel_pstate_get_epb()
631 ret = rdmsrq_on_cpu(cpu_data->cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_get_epb()
648 epp = rdmsrq_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, in intel_pstate_get_epp()
668 return -ENXIO; in intel_pstate_set_epb()
684 *-------------------------------------
719 int index = -EINVAL; in intel_pstate_get_energy_pref_index()
740 * 0x00-0x03 : Performance in intel_pstate_get_energy_pref_index()
741 * 0x04-0x07 : Balance performance in intel_pstate_get_energy_pref_index()
742 * 0x08-0x0B : Balance power in intel_pstate_get_energy_pref_index()
743 * 0x0C-0x0F : Power in intel_pstate_get_energy_pref_index()
761 * intel_pstate_hwp_boost_down() at any time. in intel_pstate_set_epp()
763 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_set_epp()
772 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_set_epp()
773 ret = wrmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_set_epp()
775 cpu->epp_cached = epp; in intel_pstate_set_epp()
784 int epp = -EINVAL; in intel_pstate_set_energy_pref_index()
788 epp = cpu_data->epp_default; in intel_pstate_set_energy_pref_index()
793 else if (epp == -EINVAL) in intel_pstate_set_energy_pref_index()
801 if (epp > 0 && cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) in intel_pstate_set_energy_pref_index()
802 return -EBUSY; in intel_pstate_set_energy_pref_index()
806 if (epp == -EINVAL) in intel_pstate_set_energy_pref_index()
807 epp = (pref_index - 1) << 2; in intel_pstate_set_energy_pref_index()
808 ret = intel_pstate_set_epb(cpu_data->cpu, epp); in intel_pstate_set_energy_pref_index()
835 struct cpudata *cpu = all_cpu_data[policy->cpu]; in store_energy_performance_preference()
843 return -EINVAL; in store_energy_performance_preference()
845 ret = match_string(energy_perf_strings, -1, str_preference); in store_energy_performance_preference()
855 return -EINVAL; in store_energy_performance_preference()
866 return -EAGAIN; in store_energy_performance_preference()
876 * which is super-heavy-weight, so make sure it is worth doing in store_energy_performance_preference()
880 epp = ret ? epp_values[ret] : cpu->epp_default; in store_energy_performance_preference()
882 if (cpu->epp_cached != epp) { in store_energy_performance_preference()
903 struct cpudata *cpu_data = all_cpu_data[policy->cpu]; in show_energy_performance_preference()
920 struct cpudata *cpu = all_cpu_data[policy->cpu]; in show_base_frequency()
923 ratio = intel_pstate_get_cppc_guaranteed(policy->cpu); in show_base_frequency()
927 rdmsrq_on_cpu(policy->cpu, MSR_HWP_CAPABILITIES, &cap); in show_base_frequency()
931 freq = ratio * cpu->pstate.scaling; in show_base_frequency()
932 if (cpu->pstate.scaling != cpu->pstate.perf_ctl_scaling) in show_base_frequency()
933 freq = rounddown(freq, cpu->pstate.perf_ctl_scaling); in show_base_frequency()
952 * and the x86 arch scale-invariance information from concurrent updates.
963 * Create "utilization bins" of 0-40%, 40%-60%, 60%-80%, and 80%-100% in hybrid_active_power()
984 struct pstate_data *pstate = &all_cpu_data[dev->id]->pstate; in hybrid_get_cost()
985 struct cpu_cacheinfo *cacheinfo = get_cpu_cacheinfo(dev->id); in hybrid_get_cost()
988 * The smaller the perf-to-frequency scaling factor, the larger the IPC in hybrid_get_cost()
997 *cost = div_u64(100ULL * INTEL_PSTATE_CORE_SCALING, pstate->scaling) + freq; in hybrid_get_cost()
1007 for (i = 0; i < cacheinfo->num_leaves; i++) { in hybrid_get_cost()
1008 if (cacheinfo->info_list[i].level == 3) { in hybrid_get_cost()
1030 if (!hybrid_max_perf_cpu || cpudata->pd_registered) in hybrid_register_perf_domain()
1041 cpudata->pd_registered = true; in hybrid_register_perf_domain()
1056 if (cpu->pd_registered) in hybrid_update_perf_domain()
1057 em_adjust_cpu_capacity(cpu->cpu); in hybrid_update_perf_domain()
1067 arch_set_cpu_capacity(cpu->cpu, cpu->capacity_perf, in hybrid_set_cpu_capacity()
1068 hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
1069 cpu->capacity_perf, in hybrid_set_cpu_capacity()
1070 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
1073 topology_set_cpu_scale(cpu->cpu, arch_scale_cpu_capacity(cpu->cpu)); in hybrid_set_cpu_capacity()
1075 pr_debug("CPU%d: perf = %u, max. perf = %u, base perf = %d\n", cpu->cpu, in hybrid_set_cpu_capacity()
1076 cpu->capacity_perf, hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
1077 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
1088 cpu->capacity_perf = cpu->pstate.max_pstate_physical; in hybrid_get_capacity_perf()
1092 cpu->capacity_perf = HWP_HIGHEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in hybrid_get_capacity_perf()
1134 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_cpu_capacity_scaling()
1135 max_cap_perf = cpu->capacity_perf; in hybrid_update_cpu_capacity_scaling()
1171 /* Bail out if enabling capacity-aware scheduling is prohibited. */ in hybrid_init_cpu_capacity_scaling()
1216 rdmsrq_on_cpu(cpu->cpu, MSR_HWP_CAPABILITIES, &cap); in __intel_pstate_get_hwp_cap()
1217 WRITE_ONCE(cpu->hwp_cap_cached, cap); in __intel_pstate_get_hwp_cap()
1218 cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(cap); in __intel_pstate_get_hwp_cap()
1219 cpu->pstate.turbo_pstate = HWP_HIGHEST_PERF(cap); in __intel_pstate_get_hwp_cap()
1224 int scaling = cpu->pstate.scaling; in intel_pstate_get_hwp_cap()
1228 cpu->pstate.max_freq = cpu->pstate.max_pstate * scaling; in intel_pstate_get_hwp_cap()
1229 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; in intel_pstate_get_hwp_cap()
1230 if (scaling != cpu->pstate.perf_ctl_scaling) { in intel_pstate_get_hwp_cap()
1231 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_get_hwp_cap()
1233 cpu->pstate.max_freq = rounddown(cpu->pstate.max_freq, in intel_pstate_get_hwp_cap()
1235 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_freq, in intel_pstate_get_hwp_cap()
1253 max_cap_perf = hybrid_max_perf_cpu->capacity_perf; in hybrid_update_capacity()
1259 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_capacity()
1266 if (cpu == hybrid_max_perf_cpu && cpu->capacity_perf < max_cap_perf) { in hybrid_update_capacity()
1274 * first time, a perf domain needs to be registered for it if hybrid in hybrid_update_capacity()
1278 if (hybrid_register_perf_domain(cpu->cpu)) in hybrid_update_capacity()
1292 max = cpu_data->max_perf_ratio; in intel_pstate_hwp_set()
1293 min = cpu_data->min_perf_ratio; in intel_pstate_hwp_set()
1295 if (cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) in intel_pstate_hwp_set()
1306 if (cpu_data->epp_policy == cpu_data->policy) in intel_pstate_hwp_set()
1309 cpu_data->epp_policy = cpu_data->policy; in intel_pstate_hwp_set()
1311 if (cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_hwp_set()
1313 cpu_data->epp_powersave = epp; in intel_pstate_hwp_set()
1321 if (cpu_data->epp_powersave < 0) in intel_pstate_hwp_set()
1327 * - Policy is not changed in intel_pstate_hwp_set()
1328 * - user has manually changed in intel_pstate_hwp_set()
1329 * - Error reading EPB in intel_pstate_hwp_set()
1335 epp = cpu_data->epp_powersave; in intel_pstate_hwp_set()
1344 WRITE_ONCE(cpu_data->hwp_req_cached, value); in intel_pstate_hwp_set()
1352 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_offline()
1364 value |= HWP_ENERGY_PERF_PREFERENCE(cpu->epp_cached); in intel_pstate_hwp_offline()
1370 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_hwp_offline()
1379 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_hwp_offline()
1382 min_perf = HWP_LOWEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in intel_pstate_hwp_offline()
1392 wrmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_offline()
1408 hybrid_clear_cpu_capacity(cpu->cpu); in intel_pstate_hwp_offline()
1438 wrmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, READ_ONCE(cpu->hwp_req_cached)); in intel_pstate_hwp_reenable()
1443 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_suspend()
1445 pr_debug("CPU %d suspending\n", cpu->cpu); in intel_pstate_suspend()
1447 cpu->suspended = true; in intel_pstate_suspend()
1457 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_resume()
1459 pr_debug("CPU %d resuming\n", cpu->cpu); in intel_pstate_resume()
1467 if (cpu->suspended && hwp_active) { in intel_pstate_resume()
1470 /* Re-enable HWP, because "online" has not done that. */ in intel_pstate_resume()
1476 cpu->suspended = false; in intel_pstate_resume()
1497 policy->cpuinfo.max_freq = READ_ONCE(global.no_turbo) ? in __intel_pstate_update_max_freq()
1498 cpudata->pstate.max_freq : cpudata->pstate.turbo_freq; in __intel_pstate_update_max_freq()
1507 policy = cpufreq_cpu_get(cpudata->cpu); in intel_pstate_update_max_freq()
1518 struct cpudata *cpudata = all_cpu_data[policy->cpu]; in intel_pstate_update_limits()
1570 ret = intel_pstate_update_status(buf, p ? p - buf : count); in store_status()
1587 return -EAGAIN; in show_turbo_pct()
1592 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1593 no_turbo = cpu->pstate.max_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1595 turbo_pct = 100 - fp_toint(mul_fp(turbo_fp, int_tofp(100))); in show_turbo_pct()
1612 return -EAGAIN; in show_num_pstates()
1616 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_num_pstates()
1632 return -EAGAIN; in show_no_turbo()
1649 return -EINVAL; in store_no_turbo()
1654 count = -EAGAIN; in store_no_turbo()
1663 count = -EPERM; in store_no_turbo()
1680 int pct = cpu->pstate.max_pstate * 100 / cpu->pstate.turbo_pstate; in store_no_turbo()
1712 req = policy->driver_data; in update_qos_request()
1728 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * perf_pct, 100); in update_qos_request()
1743 return -EINVAL; in store_max_perf_pct()
1749 return -EAGAIN; in store_max_perf_pct()
1776 return -EINVAL; in store_min_perf_pct()
1782 return -EAGAIN; in store_min_perf_pct()
1885 intel_pstate_kobject = kobject_create_and_add("intel_pstate", &dev_root->kobj); in intel_pstate_sysfs_expose_params()
1980 wrmsrq_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_notify_work()
2011 schedule_delayed_work(&all_cpu_data[this_cpu]->hwp_notify_work, in notify_hwp_interrupt()
2031 wrmsrq_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_disable_hwp_interrupt()
2034 cancel_work = cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_disable_hwp_interrupt()
2038 cancel_delayed_work_sync(&cpudata->hwp_notify_work); in intel_pstate_disable_hwp_interrupt()
2051 INIT_DELAYED_WORK(&cpudata->hwp_notify_work, intel_pstate_notify_work); in intel_pstate_enable_hwp_interrupt()
2052 cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_enable_hwp_interrupt()
2059 wrmsrq_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, interrupt_mask); in intel_pstate_enable_hwp_interrupt()
2060 wrmsrq_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_enable_hwp_interrupt()
2066 cpudata->epp_default = intel_pstate_get_epp(cpudata, 0); in intel_pstate_update_epp_defaults()
2070 * - Is equal or less than 0x80 (default balance_perf EPP) in intel_pstate_update_epp_defaults()
2071 * - But less performance oriented than performance EPP in intel_pstate_update_epp_defaults()
2074 if (hwp_forced && cpudata->epp_default <= HWP_EPP_BALANCE_PERFORMANCE && in intel_pstate_update_epp_defaults()
2075 cpudata->epp_default > HWP_EPP_PERFORMANCE) { in intel_pstate_update_epp_defaults()
2076 epp_values[EPP_INDEX_BALANCE_PERFORMANCE] = cpudata->epp_default; in intel_pstate_update_epp_defaults()
2091 cpudata->epp_default = epp_values[EPP_INDEX_BALANCE_PERFORMANCE]; in intel_pstate_update_epp_defaults()
2092 intel_pstate_set_epp(cpudata, cpudata->epp_default); in intel_pstate_update_epp_defaults()
2099 wrmsrq_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_hwp_enable()
2101 wrmsrq_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); in intel_pstate_hwp_enable()
2105 if (cpudata->epp_default >= 0) in intel_pstate_hwp_enable()
2145 vid_fp = cpudata->vid.min + mul_fp( in atom_get_val()
2146 int_tofp(pstate - cpudata->pstate.min_pstate), in atom_get_val()
2147 cpudata->vid.ratio); in atom_get_val()
2149 vid_fp = clamp_t(int32_t, vid_fp, cpudata->vid.min, cpudata->vid.max); in atom_get_val()
2152 if (pstate > cpudata->pstate.max_pstate) in atom_get_val()
2153 vid = cpudata->vid.turbo; in atom_get_val()
2162 /* Defined in Table 35-6 from SDM (Sept 2015) */ in silvermont_get_scaling()
2177 /* Defined in Table 35-10 from SDM (Sept 2015) */ in airmont_get_scaling()
2194 cpudata->vid.min = int_tofp((value >> 8) & 0x7f); in atom_get_vid()
2195 cpudata->vid.max = int_tofp((value >> 16) & 0x7f); in atom_get_vid()
2196 cpudata->vid.ratio = div_fp( in atom_get_vid()
2197 cpudata->vid.max - cpudata->vid.min, in atom_get_vid()
2198 int_tofp(cpudata->pstate.max_pstate - in atom_get_vid()
2199 cpudata->pstate.min_pstate)); in atom_get_vid()
2202 cpudata->vid.turbo = value & 0x7f; in atom_get_vid()
2251 return -ENXIO; in core_get_tdp_ratio()
2280 if (tdp_ratio - 1 == tar_levels) { in core_get_max_pstate()
2335 u8 cpu_type = c->topo.intel_type; in hwp_get_cpu_scaling()
2338 * Return the hybrid scaling factor for P-cores and use the in hwp_get_cpu_scaling()
2339 * default core scaling for E-cores. in hwp_get_cpu_scaling()
2348 /* Use core scaling on non-hybrid systems. */ in hwp_get_cpu_scaling()
2362 trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_set_pstate()
2363 cpu->pstate.current_pstate = pstate; in intel_pstate_set_pstate()
2369 wrmsrq_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_pstate_set_pstate()
2375 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); in intel_pstate_set_min_pstate()
2380 int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu->cpu); in intel_pstate_get_cpu_pstates()
2383 cpu->pstate.min_pstate = pstate_funcs.get_min(cpu->cpu); in intel_pstate_get_cpu_pstates()
2384 cpu->pstate.max_pstate_physical = perf_ctl_max_phys; in intel_pstate_get_cpu_pstates()
2385 cpu->pstate.perf_ctl_scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2391 cpu->pstate.scaling = pstate_funcs.get_cpu_scaling(cpu->cpu); in intel_pstate_get_cpu_pstates()
2392 if (cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2397 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2400 * If the CPU is going online for the first time and it was in intel_pstate_get_cpu_pstates()
2405 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2406 cpu->pstate.max_pstate = pstate_funcs.get_max(cpu->cpu); in intel_pstate_get_cpu_pstates()
2407 cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_get_cpu_pstates()
2410 if (cpu->pstate.scaling == perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2411 cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2412 cpu->pstate.max_freq = cpu->pstate.max_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2413 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2417 cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift(); in intel_pstate_get_cpu_pstates()
2426 * Long hold time will keep high perf limits for long time,
2435 u64 hwp_req = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_boost_up()
2436 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_pstate_hwp_boost_up()
2442 * Cases to consider (User changes via sysfs or boot time): in intel_pstate_hwp_boost_up()
2456 if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit) in intel_pstate_hwp_boost_up()
2459 if (!cpu->hwp_boost_min) in intel_pstate_hwp_boost_up()
2460 cpu->hwp_boost_min = min_limit; in intel_pstate_hwp_boost_up()
2465 if (cpu->hwp_boost_min < boost_level1) in intel_pstate_hwp_boost_up()
2466 cpu->hwp_boost_min = boost_level1; in intel_pstate_hwp_boost_up()
2467 else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(hwp_cap)) in intel_pstate_hwp_boost_up()
2468 cpu->hwp_boost_min = HWP_GUARANTEED_PERF(hwp_cap); in intel_pstate_hwp_boost_up()
2469 else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(hwp_cap) && in intel_pstate_hwp_boost_up()
2471 cpu->hwp_boost_min = max_limit; in intel_pstate_hwp_boost_up()
2475 hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min; in intel_pstate_hwp_boost_up()
2477 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_up()
2482 if (cpu->hwp_boost_min) { in intel_pstate_hwp_boost_down()
2485 /* Check if we are idle for hold time to boost down */ in intel_pstate_hwp_boost_down()
2486 expired = time_after64(cpu->sample.time, cpu->last_update + in intel_pstate_hwp_boost_down()
2489 wrmsrq(MSR_HWP_REQUEST, cpu->hwp_req_cached); in intel_pstate_hwp_boost_down()
2490 cpu->hwp_boost_min = 0; in intel_pstate_hwp_boost_down()
2493 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_down()
2497 u64 time) in intel_pstate_update_util_hwp_local() argument
2499 cpu->sample.time = time; in intel_pstate_update_util_hwp_local()
2501 if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) { in intel_pstate_update_util_hwp_local()
2504 cpu->sched_flags = 0; in intel_pstate_update_util_hwp_local()
2506 * Set iowait_boost flag and update time. Since IO WAIT flag in intel_pstate_update_util_hwp_local()
2507 * is set all the time, we can't just conclude that there is in intel_pstate_update_util_hwp_local()
2512 if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC)) in intel_pstate_update_util_hwp_local()
2515 cpu->last_io_update = time; in intel_pstate_update_util_hwp_local()
2526 u64 time, unsigned int flags) in intel_pstate_update_util_hwp() argument
2530 cpu->sched_flags |= flags; in intel_pstate_update_util_hwp()
2532 if (smp_processor_id() == cpu->cpu) in intel_pstate_update_util_hwp()
2533 intel_pstate_update_util_hwp_local(cpu, time); in intel_pstate_update_util_hwp()
2538 struct sample *sample = &cpu->sample; in intel_pstate_calc_avg_perf() local
2540 sample->core_avg_perf = div_ext_fp(sample->aperf, sample->mperf); in intel_pstate_calc_avg_perf()
2543 static inline bool intel_pstate_sample(struct cpudata *cpu, u64 time) in intel_pstate_sample() argument
2553 if (cpu->prev_mperf == mperf || cpu->prev_tsc == tsc) { in intel_pstate_sample()
2559 cpu->last_sample_time = cpu->sample.time; in intel_pstate_sample()
2560 cpu->sample.time = time; in intel_pstate_sample()
2561 cpu->sample.aperf = aperf; in intel_pstate_sample()
2562 cpu->sample.mperf = mperf; in intel_pstate_sample()
2563 cpu->sample.tsc = tsc; in intel_pstate_sample()
2564 cpu->sample.aperf -= cpu->prev_aperf; in intel_pstate_sample()
2565 cpu->sample.mperf -= cpu->prev_mperf; in intel_pstate_sample()
2566 cpu->sample.tsc -= cpu->prev_tsc; in intel_pstate_sample()
2568 cpu->prev_aperf = aperf; in intel_pstate_sample()
2569 cpu->prev_mperf = mperf; in intel_pstate_sample()
2570 cpu->prev_tsc = tsc; in intel_pstate_sample()
2572 * First time this function is invoked in a given cycle, all of the in intel_pstate_sample()
2573 * previous sample data fields are equal to zero or stale and they must in intel_pstate_sample()
2575 * that sample.time will always be reset before setting the utilization in intel_pstate_sample()
2576 * update hook and make the caller skip the sample then. in intel_pstate_sample()
2578 if (cpu->last_sample_time) { in intel_pstate_sample()
2587 return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz); in get_avg_frequency()
2592 return mul_ext_fp(cpu->pstate.max_pstate_physical, in get_avg_pstate()
2593 cpu->sample.core_avg_perf); in get_avg_pstate()
2598 struct sample *sample = &cpu->sample; in get_target_pstate() local
2602 busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift, in get_target_pstate()
2603 sample->tsc); in get_target_pstate()
2605 if (busy_frac < cpu->iowait_boost) in get_target_pstate()
2606 busy_frac = cpu->iowait_boost; in get_target_pstate()
2608 sample->busy_scaled = busy_frac * 100; in get_target_pstate()
2611 cpu->pstate.max_pstate : cpu->pstate.turbo_pstate; in get_target_pstate()
2614 if (target < cpu->pstate.min_pstate) in get_target_pstate()
2615 target = cpu->pstate.min_pstate; in get_target_pstate()
2618 * If the average P-state during the previous cycle was higher than the in get_target_pstate()
2626 target += (avg_pstate - target) >> 1; in get_target_pstate()
2633 int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); in intel_pstate_prepare_request()
2634 int max_pstate = max(min_pstate, cpu->max_perf_ratio); in intel_pstate_prepare_request()
2641 if (pstate == cpu->pstate.current_pstate) in intel_pstate_update_pstate()
2644 cpu->pstate.current_pstate = pstate; in intel_pstate_update_pstate()
2650 int from = cpu->pstate.current_pstate; in intel_pstate_adjust_pstate()
2651 struct sample *sample; in intel_pstate_adjust_pstate() local
2656 trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_adjust_pstate()
2659 sample = &cpu->sample; in intel_pstate_adjust_pstate()
2660 trace_pstate_sample(mul_ext_fp(100, sample->core_avg_perf), in intel_pstate_adjust_pstate()
2661 fp_toint(sample->busy_scaled), in intel_pstate_adjust_pstate()
2663 cpu->pstate.current_pstate, in intel_pstate_adjust_pstate()
2664 sample->mperf, in intel_pstate_adjust_pstate()
2665 sample->aperf, in intel_pstate_adjust_pstate()
2666 sample->tsc, in intel_pstate_adjust_pstate()
2668 fp_toint(cpu->iowait_boost * 100)); in intel_pstate_adjust_pstate()
2671 static void intel_pstate_update_util(struct update_util_data *data, u64 time, in intel_pstate_update_util() argument
2678 if (smp_processor_id() != cpu->cpu) in intel_pstate_update_util()
2681 delta_ns = time - cpu->last_update; in intel_pstate_update_util()
2685 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2686 } else if (cpu->iowait_boost >= ONE_EIGHTH_FP) { in intel_pstate_update_util()
2687 cpu->iowait_boost <<= 1; in intel_pstate_update_util()
2688 if (cpu->iowait_boost > int_tofp(1)) in intel_pstate_update_util()
2689 cpu->iowait_boost = int_tofp(1); in intel_pstate_update_util()
2691 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2693 } else if (cpu->iowait_boost) { in intel_pstate_update_util()
2696 cpu->iowait_boost = 0; in intel_pstate_update_util()
2698 cpu->iowait_boost >>= 1; in intel_pstate_update_util()
2700 cpu->last_update = time; in intel_pstate_update_util()
2701 delta_ns = time - cpu->sample.time; in intel_pstate_update_util()
2705 if (intel_pstate_sample(cpu, time)) in intel_pstate_update_util()
2812 return -ENOMEM; in intel_pstate_init_cpu()
2816 cpu->cpu = cpunum; in intel_pstate_init_cpu()
2818 cpu->epp_default = -EINVAL; in intel_pstate_init_cpu()
2828 * Re-enable HWP in case this happens after a resume from ACPI in intel_pstate_init_cpu()
2835 cpu->epp_powersave = -EINVAL; in intel_pstate_init_cpu()
2836 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_init_cpu()
2852 if (cpu->update_util_set) in intel_pstate_set_update_util_hook()
2856 cpu->sample.time = 0; in intel_pstate_set_update_util_hook()
2857 cpufreq_add_update_util_hook(cpu_num, &cpu->update_util, in intel_pstate_set_update_util_hook()
2861 cpu->update_util_set = true; in intel_pstate_set_update_util_hook()
2868 if (!cpu_data->update_util_set) in intel_pstate_clear_update_util_hook()
2872 cpu_data->update_util_set = false; in intel_pstate_clear_update_util_hook()
2879 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_get_max_freq()
2886 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_update_perf_limits()
2902 if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_update_perf_limits()
2912 cpu->cpu, min_policy_perf, max_policy_perf); in intel_pstate_update_perf_limits()
2916 cpu->min_perf_ratio = min_policy_perf; in intel_pstate_update_perf_limits()
2917 cpu->max_perf_ratio = max_policy_perf; in intel_pstate_update_perf_limits()
2919 int turbo_max = cpu->pstate.turbo_pstate; in intel_pstate_update_perf_limits()
2922 /* Global limits are in percent of the maximum turbo P-state. */ in intel_pstate_update_perf_limits()
2927 pr_debug("cpu:%d global_min:%d global_max:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2930 cpu->min_perf_ratio = max(min_policy_perf, global_min); in intel_pstate_update_perf_limits()
2931 cpu->min_perf_ratio = min(cpu->min_perf_ratio, max_policy_perf); in intel_pstate_update_perf_limits()
2932 cpu->max_perf_ratio = min(max_policy_perf, global_max); in intel_pstate_update_perf_limits()
2933 cpu->max_perf_ratio = max(min_policy_perf, cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2936 cpu->min_perf_ratio = min(cpu->min_perf_ratio, in intel_pstate_update_perf_limits()
2937 cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2940 pr_debug("cpu:%d max_perf_ratio:%d min_perf_ratio:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2941 cpu->max_perf_ratio, in intel_pstate_update_perf_limits()
2942 cpu->min_perf_ratio); in intel_pstate_update_perf_limits()
2949 if (!policy->cpuinfo.max_freq) in intel_pstate_set_policy()
2950 return -ENODEV; in intel_pstate_set_policy()
2952 pr_debug("set_policy cpuinfo.max %u policy->max %u\n", in intel_pstate_set_policy()
2953 policy->cpuinfo.max_freq, policy->max); in intel_pstate_set_policy()
2955 cpu = all_cpu_data[policy->cpu]; in intel_pstate_set_policy()
2956 cpu->policy = policy->policy; in intel_pstate_set_policy()
2960 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_pstate_set_policy()
2962 if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_set_policy()
2963 int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); in intel_pstate_set_policy()
2969 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2972 intel_pstate_set_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2982 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2983 intel_pstate_hwp_set(policy->cpu); in intel_pstate_set_policy()
2986 * policy->cur is never updated with the intel_pstate driver, but it in intel_pstate_set_policy()
2989 policy->cur = policy->min; in intel_pstate_set_policy()
3000 cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && in intel_pstate_adjust_policy_max()
3001 policy->max < policy->cpuinfo.max_freq && in intel_pstate_adjust_policy_max()
3002 policy->max > cpu->pstate.max_freq) { in intel_pstate_adjust_policy_max()
3003 pr_debug("policy->max > max non turbo frequency\n"); in intel_pstate_adjust_policy_max()
3004 policy->max = policy->cpuinfo.max_freq; in intel_pstate_adjust_policy_max()
3016 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_verify_cpu_policy()
3020 cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, max_freq); in intel_pstate_verify_cpu_policy()
3027 intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy); in intel_pstate_verify_policy()
3034 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_offline()
3036 pr_debug("CPU %d going offline\n", cpu->cpu); in intel_cpufreq_cpu_offline()
3038 if (cpu->suspended) in intel_cpufreq_cpu_offline()
3059 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_online()
3061 pr_debug("CPU %d going online\n", cpu->cpu); in intel_pstate_cpu_online()
3067 * Re-enable HWP and clear the "suspended" flag to let "resume" in intel_pstate_cpu_online()
3071 cpu->suspended = false; in intel_pstate_cpu_online()
3081 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_cpu_offline()
3088 pr_debug("CPU %d exiting\n", policy->cpu); in intel_pstate_cpu_exit()
3090 policy->fast_switch_possible = false; in intel_pstate_cpu_exit()
3098 rc = intel_pstate_init_cpu(policy->cpu); in __intel_pstate_cpu_init()
3102 cpu = all_cpu_data[policy->cpu]; in __intel_pstate_cpu_init()
3104 cpu->max_perf_ratio = 0xFF; in __intel_pstate_cpu_init()
3105 cpu->min_perf_ratio = 0; in __intel_pstate_cpu_init()
3108 policy->cpuinfo.min_freq = cpu->pstate.min_freq; in __intel_pstate_cpu_init()
3109 policy->cpuinfo.max_freq = READ_ONCE(global.no_turbo) ? in __intel_pstate_cpu_init()
3110 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in __intel_pstate_cpu_init()
3112 policy->min = policy->cpuinfo.min_freq; in __intel_pstate_cpu_init()
3113 policy->max = policy->cpuinfo.max_freq; in __intel_pstate_cpu_init()
3117 policy->fast_switch_possible = true; in __intel_pstate_cpu_init()
3133 policy->policy = CPUFREQ_POLICY_POWERSAVE; in intel_pstate_cpu_init()
3136 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_init()
3138 cpu->epp_cached = intel_pstate_get_epp(cpu, 0); in intel_pstate_cpu_init()
3160 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_verify_policy()
3163 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_cpufreq_verify_policy()
3172 * core_avg_perf) is not needed and so is re-assigned to indicate if the
3175 * (or performance or core_avg_perf) have a fixed y-axis from 0 to 100%,
3186 struct sample *sample; in intel_cpufreq_trace() local
3194 sample = &cpu->sample; in intel_cpufreq_trace()
3198 cpu->pstate.current_pstate, in intel_cpufreq_trace()
3199 sample->mperf, in intel_cpufreq_trace()
3200 sample->aperf, in intel_cpufreq_trace()
3201 sample->tsc, in intel_cpufreq_trace()
3203 fp_toint(cpu->iowait_boost * 100)); in intel_cpufreq_trace()
3209 u64 prev = READ_ONCE(cpu->hwp_req_cached), value = prev; in intel_cpufreq_hwp_update()
3223 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_hwp_update()
3227 wrmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_hwp_update()
3237 wrmsrq_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_cpufreq_perf_ctl_update()
3244 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_update_pstate()
3245 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_update_pstate()
3249 int max_pstate = policy->strict_target ? in intel_cpufreq_update_pstate()
3250 target_pstate : cpu->max_perf_ratio; in intel_cpufreq_update_pstate()
3258 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_update_pstate()
3270 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_target()
3274 freqs.old = policy->cur; in intel_cpufreq_target()
3282 freqs.new = target_pstate * cpu->pstate.scaling; in intel_cpufreq_target()
3292 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_fast_switch()
3299 return target_pstate * cpu->pstate.scaling; in intel_cpufreq_fast_switch()
3308 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_cpufreq_adjust_perf()
3309 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_adjust_perf()
3326 if (min_pstate < cpu->pstate.min_pstate) in intel_cpufreq_adjust_perf()
3327 min_pstate = cpu->pstate.min_pstate; in intel_cpufreq_adjust_perf()
3329 if (min_pstate < cpu->min_perf_ratio) in intel_cpufreq_adjust_perf()
3330 min_pstate = cpu->min_perf_ratio; in intel_cpufreq_adjust_perf()
3332 if (min_pstate > cpu->max_perf_ratio) in intel_cpufreq_adjust_perf()
3333 min_pstate = cpu->max_perf_ratio; in intel_cpufreq_adjust_perf()
3335 max_pstate = min(cap_pstate, cpu->max_perf_ratio); in intel_cpufreq_adjust_perf()
3343 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_adjust_perf()
3354 dev = get_cpu_device(policy->cpu); in intel_cpufreq_cpu_init()
3356 return -ENODEV; in intel_cpufreq_cpu_init()
3362 policy->cpuinfo.transition_latency = INTEL_CPUFREQ_TRANSITION_LATENCY; in intel_cpufreq_cpu_init()
3364 policy->cur = policy->cpuinfo.min_freq; in intel_cpufreq_cpu_init()
3368 ret = -ENOMEM; in intel_cpufreq_cpu_init()
3372 cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_init()
3377 policy->transition_delay_us = INTEL_CPUFREQ_TRANSITION_DELAY_HWP; in intel_cpufreq_cpu_init()
3381 rdmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, &value); in intel_cpufreq_cpu_init()
3382 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_cpu_init()
3384 cpu->epp_cached = intel_pstate_get_epp(cpu, value); in intel_cpufreq_cpu_init()
3386 policy->transition_delay_us = INTEL_CPUFREQ_TRANSITION_DELAY; in intel_cpufreq_cpu_init()
3389 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.min_perf_pct, 100); in intel_cpufreq_cpu_init()
3391 ret = freq_qos_add_request(&policy->constraints, req, FREQ_QOS_MIN, in intel_cpufreq_cpu_init()
3394 dev_err(dev, "Failed to add min-freq constraint (%d)\n", ret); in intel_cpufreq_cpu_init()
3398 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.max_perf_pct, 100); in intel_cpufreq_cpu_init()
3400 ret = freq_qos_add_request(&policy->constraints, req + 1, FREQ_QOS_MAX, in intel_cpufreq_cpu_init()
3403 dev_err(dev, "Failed to add max-freq constraint (%d)\n", ret); in intel_cpufreq_cpu_init()
3407 policy->driver_data = req; in intel_cpufreq_cpu_init()
3425 req = policy->driver_data; in intel_cpufreq_cpu_exit()
3439 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_suspend()
3440 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_cpufreq_suspend()
3448 wrmsrq_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_suspend()
3449 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_suspend()
3535 return -EINVAL; in intel_pstate_update_status()
3538 return -EBUSY; in intel_pstate_update_status()
3568 return -EINVAL; in intel_pstate_update_status()
3581 return -ENODEV; in intel_pstate_msrs_not_valid()
3588 pstate_funcs.get_max = funcs->get_max; in copy_cpu_funcs()
3589 pstate_funcs.get_max_physical = funcs->get_max_physical; in copy_cpu_funcs()
3590 pstate_funcs.get_min = funcs->get_min; in copy_cpu_funcs()
3591 pstate_funcs.get_turbo = funcs->get_turbo; in copy_cpu_funcs()
3592 pstate_funcs.get_scaling = funcs->get_scaling; in copy_cpu_funcs()
3593 pstate_funcs.get_val = funcs->get_val; in copy_cpu_funcs()
3594 pstate_funcs.get_vid = funcs->get_vid; in copy_cpu_funcs()
3595 pstate_funcs.get_aperf_mperf_shift = funcs->get_aperf_mperf_shift; in copy_cpu_funcs()
3613 status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer); in intel_pstate_no_acpi_pss()
3618 if (pss && pss->type == ACPI_TYPE_PACKAGE) { in intel_pstate_no_acpi_pss()
3656 if (acpi_has_method(pr->handle, "_PPC")) in intel_pstate_has_acpi_ppc()
3668 /* Hardware vendor-specific info that has its own power management modes */
3671 {"ORACLE", "X4-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3672 {"ORACLE", "X4-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3673 {"ORACLE", "X4-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3674 {"ORACLE", "X3-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3675 {"ORACLE", "X3-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3676 {"ORACLE", "X3-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3683 {"ORACLE", "X6-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3726 * It may be unsafe to request P-states control from SMM if _PPC support in intel_pstate_request_control_from_smm()
3809 return -ENODEV; in intel_pstate_init()
3816 pr_info("P-states controlled by the platform\n"); in intel_pstate_init()
3817 return -ENODEV; in intel_pstate_init()
3827 return -ENODEV; in intel_pstate_init()
3840 hwp_mode_bdw = id->driver_data; in intel_pstate_init()
3855 return -ENODEV; in intel_pstate_init()
3860 return -ENODEV; in intel_pstate_init()
3863 copy_cpu_funcs((struct pstate_funcs *)id->driver_data); in intel_pstate_init()
3868 return -ENODEV; in intel_pstate_init()
3876 return -ENOTSUPP; in intel_pstate_init()
3878 pr_info("Intel P-state driver initializing\n"); in intel_pstate_init()
3882 return -ENOMEM; in intel_pstate_init()
3896 FIELD_GET(POWERSAVE_MASK, id->driver_data); in intel_pstate_init()
3898 FIELD_GET(BALANCE_POWER_MASK, id->driver_data); in intel_pstate_init()
3900 FIELD_GET(BALANCE_PERFORMANCE_MASK, id->driver_data); in intel_pstate_init()
3902 FIELD_GET(PERFORMANCE_MASK, id->driver_data); in intel_pstate_init()
3911 hybrid_scaling_factor = hybrid_id->driver_data; in intel_pstate_init()
3946 return -EINVAL; in intel_pstate_setup()
3978 MODULE_DESCRIPTION("'intel_pstate' - P state driver Intel Core processors");