Lines Matching +full:always +full:- +full:turbo
1 // SPDX-License-Identifier: GPL-2.0-only
37 #include <asm/intel-family.h>
55 #define ONE_EIGHTH_FP ((int64_t)1 << (FRAC_BITS - 3))
77 mask = (1 << FRAC_BITS) - 1; in ceiling_fp()
94 * struct sample - Store performance sample
121 * struct pstate_data - Store P state data
128 * @perf_ctl_scaling: PERF_CTL P-state to frequency scaling factor
130 * @turbo_pstate: Max Turbo P state possible for this platform
151 * struct vid_data - Stores voltage information data
155 * @turbo: VID data for turbo P state
156 * @ratio: Ratio of (vid max - vid min) /
157 * (max P state - Min P State)
166 int turbo; member
171 * struct global_params - Global parameters, mostly tunable via sysfs.
172 * @no_turbo: Whether or not to use turbo P-states.
173 * @turbo_disabled: Whether or not turbo P-states are available at all,
175 * not the maximum reported turbo P-state is different from
176 * the maximum reported non-turbo one.
177 * @min_perf_pct: Minimum capacity limit in percent of the maximum turbo
178 * P-state capacity.
179 * @max_perf_pct: Maximum capacity limit in percent of the maximum turbo
180 * P-state capacity.
190 * struct cpudata - Per CPU instance data storage
195 * @iowait_boost: iowait-related boost fraction
215 * @epp_cached: Cached HWP energy-performance preference value
268 * struct pstate_funcs - Per CPU model specific callbacks
269 * @get_max: Callback to get maximum non turbo effective P state
270 * @get_max_physical: Callback to get maximum non turbo physical P state
272 * @get_turbo: Callback to get turbo P state
371 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
446 intel_pstate_set_itmt_prio(policy->cpu); in intel_pstate_init_acpi_perf_limits()
453 cpu = all_cpu_data[policy->cpu]; in intel_pstate_init_acpi_perf_limits()
455 ret = acpi_processor_register_performance(&cpu->acpi_perf_data, in intel_pstate_init_acpi_perf_limits()
456 policy->cpu); in intel_pstate_init_acpi_perf_limits()
465 if (cpu->acpi_perf_data.control_register.space_id != in intel_pstate_init_acpi_perf_limits()
473 if (cpu->acpi_perf_data.state_count < 2) in intel_pstate_init_acpi_perf_limits()
476 pr_debug("CPU%u - ACPI _PSS perf data\n", policy->cpu); in intel_pstate_init_acpi_perf_limits()
477 for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { in intel_pstate_init_acpi_perf_limits()
479 (i == cpu->acpi_perf_data.state ? '*' : ' '), i, in intel_pstate_init_acpi_perf_limits()
480 (u32) cpu->acpi_perf_data.states[i].core_frequency, in intel_pstate_init_acpi_perf_limits()
481 (u32) cpu->acpi_perf_data.states[i].power, in intel_pstate_init_acpi_perf_limits()
482 (u32) cpu->acpi_perf_data.states[i].control); in intel_pstate_init_acpi_perf_limits()
485 cpu->valid_pss_table = true; in intel_pstate_init_acpi_perf_limits()
491 cpu->valid_pss_table = false; in intel_pstate_init_acpi_perf_limits()
492 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_init_acpi_perf_limits()
499 cpu = all_cpu_data[policy->cpu]; in intel_pstate_exit_perf_limits()
500 if (!cpu->valid_pss_table) in intel_pstate_exit_perf_limits()
503 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_exit_perf_limits()
523 return -ENOTSUPP; in intel_pstate_get_cppc_guaranteed()
535 if (freq == cpu->pstate.turbo_freq) in intel_pstate_freq_to_hwp_rel()
536 return cpu->pstate.turbo_pstate; in intel_pstate_freq_to_hwp_rel()
538 if (freq == cpu->pstate.max_freq) in intel_pstate_freq_to_hwp_rel()
539 return cpu->pstate.max_pstate; in intel_pstate_freq_to_hwp_rel()
543 return freq / cpu->pstate.scaling; in intel_pstate_freq_to_hwp_rel()
545 return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
548 return DIV_ROUND_UP(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
557 * intel_pstate_hybrid_hwp_adjust - Calibrate HWP performance levels.
561 * P-states accessible through the PERF_CTL interface. If that happens, the
563 * than the scaling factor between P-state values and CPU frequency.
569 int perf_ctl_max_phys = cpu->pstate.max_pstate_physical; in intel_pstate_hybrid_hwp_adjust()
570 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
571 int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_hybrid_hwp_adjust()
572 int scaling = cpu->pstate.scaling; in intel_pstate_hybrid_hwp_adjust()
575 pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys); in intel_pstate_hybrid_hwp_adjust()
576 pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo); in intel_pstate_hybrid_hwp_adjust()
577 pr_debug("CPU%d: perf_ctl_scaling = %d\n", cpu->cpu, perf_ctl_scaling); in intel_pstate_hybrid_hwp_adjust()
578 pr_debug("CPU%d: HWP_CAP guaranteed = %d\n", cpu->cpu, cpu->pstate.max_pstate); in intel_pstate_hybrid_hwp_adjust()
579 pr_debug("CPU%d: HWP_CAP highest = %d\n", cpu->cpu, cpu->pstate.turbo_pstate); in intel_pstate_hybrid_hwp_adjust()
580 pr_debug("CPU%d: HWP-to-frequency scaling factor: %d\n", cpu->cpu, scaling); in intel_pstate_hybrid_hwp_adjust()
582 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
584 cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
588 cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
590 freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
591 cpu->pstate.min_freq = freq; in intel_pstate_hybrid_hwp_adjust()
593 * Cast the min P-state value retrieved via pstate_funcs.get_min() to in intel_pstate_hybrid_hwp_adjust()
596 cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
611 int turbo_pstate = cpu->pstate.turbo_pstate; in min_perf_pct_min()
614 (cpu->pstate.min_pstate * 100 / turbo_pstate) : 0; in min_perf_pct_min()
623 return -ENXIO; in intel_pstate_get_epb()
625 ret = rdmsrl_on_cpu(cpu_data->cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_get_epb()
642 epp = rdmsrl_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, in intel_pstate_get_epp()
662 return -ENXIO; in intel_pstate_set_epb()
678 *-------------------------------------
713 int index = -EINVAL; in intel_pstate_get_energy_pref_index()
734 * 0x00-0x03 : Performance in intel_pstate_get_energy_pref_index()
735 * 0x04-0x07 : Balance performance in intel_pstate_get_energy_pref_index()
736 * 0x08-0x0B : Balance power in intel_pstate_get_energy_pref_index()
737 * 0x0C-0x0F : Power in intel_pstate_get_energy_pref_index()
757 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_set_epp()
766 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_set_epp()
767 ret = wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_set_epp()
769 cpu->epp_cached = epp; in intel_pstate_set_epp()
778 int epp = -EINVAL; in intel_pstate_set_energy_pref_index()
782 epp = cpu_data->epp_default; in intel_pstate_set_energy_pref_index()
787 else if (epp == -EINVAL) in intel_pstate_set_energy_pref_index()
795 if (epp > 0 && cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) in intel_pstate_set_energy_pref_index()
796 return -EBUSY; in intel_pstate_set_energy_pref_index()
800 if (epp == -EINVAL) in intel_pstate_set_energy_pref_index()
801 epp = (pref_index - 1) << 2; in intel_pstate_set_energy_pref_index()
802 ret = intel_pstate_set_epb(cpu_data->cpu, epp); in intel_pstate_set_energy_pref_index()
829 struct cpudata *cpu = all_cpu_data[policy->cpu]; in store_energy_performance_preference()
837 return -EINVAL; in store_energy_performance_preference()
839 ret = match_string(energy_perf_strings, -1, str_preference); in store_energy_performance_preference()
849 return -EINVAL; in store_energy_performance_preference()
860 return -EAGAIN; in store_energy_performance_preference()
870 * which is super-heavy-weight, so make sure it is worth doing in store_energy_performance_preference()
874 epp = ret ? epp_values[ret] : cpu->epp_default; in store_energy_performance_preference()
876 if (cpu->epp_cached != epp) { in store_energy_performance_preference()
897 struct cpudata *cpu_data = all_cpu_data[policy->cpu]; in show_energy_performance_preference()
914 struct cpudata *cpu = all_cpu_data[policy->cpu]; in show_base_frequency()
917 ratio = intel_pstate_get_cppc_guaranteed(policy->cpu); in show_base_frequency()
921 rdmsrl_on_cpu(policy->cpu, MSR_HWP_CAPABILITIES, &cap); in show_base_frequency()
925 freq = ratio * cpu->pstate.scaling; in show_base_frequency()
926 if (cpu->pstate.scaling != cpu->pstate.perf_ctl_scaling) in show_base_frequency()
927 freq = rounddown(freq, cpu->pstate.perf_ctl_scaling); in show_base_frequency()
944 * and the x86 arch scale-invariance information from concurrent updates.
950 arch_set_cpu_capacity(cpu->cpu, cpu->capacity_perf, in hybrid_set_cpu_capacity()
951 hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
952 cpu->capacity_perf, in hybrid_set_cpu_capacity()
953 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
955 pr_debug("CPU%d: perf = %u, max. perf = %u, base perf = %d\n", cpu->cpu, in hybrid_set_cpu_capacity()
956 cpu->capacity_perf, hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
957 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
968 cpu->capacity_perf = cpu->pstate.max_pstate_physical; in hybrid_get_capacity_perf()
972 cpu->capacity_perf = HWP_HIGHEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in hybrid_get_capacity_perf()
1014 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_cpu_capacity_scaling()
1015 max_cap_perf = cpu->capacity_perf; in hybrid_update_cpu_capacity_scaling()
1087 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_CAPABILITIES, &cap); in __intel_pstate_get_hwp_cap()
1088 WRITE_ONCE(cpu->hwp_cap_cached, cap); in __intel_pstate_get_hwp_cap()
1089 cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(cap); in __intel_pstate_get_hwp_cap()
1090 cpu->pstate.turbo_pstate = HWP_HIGHEST_PERF(cap); in __intel_pstate_get_hwp_cap()
1095 int scaling = cpu->pstate.scaling; in intel_pstate_get_hwp_cap()
1099 cpu->pstate.max_freq = cpu->pstate.max_pstate * scaling; in intel_pstate_get_hwp_cap()
1100 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; in intel_pstate_get_hwp_cap()
1101 if (scaling != cpu->pstate.perf_ctl_scaling) { in intel_pstate_get_hwp_cap()
1102 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_get_hwp_cap()
1104 cpu->pstate.max_freq = rounddown(cpu->pstate.max_freq, in intel_pstate_get_hwp_cap()
1106 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_freq, in intel_pstate_get_hwp_cap()
1124 max_cap_perf = hybrid_max_perf_cpu->capacity_perf; in hybrid_update_capacity()
1130 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_capacity()
1137 if (cpu == hybrid_max_perf_cpu && cpu->capacity_perf < max_cap_perf) { in hybrid_update_capacity()
1155 max = cpu_data->max_perf_ratio; in intel_pstate_hwp_set()
1156 min = cpu_data->min_perf_ratio; in intel_pstate_hwp_set()
1158 if (cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) in intel_pstate_hwp_set()
1169 if (cpu_data->epp_policy == cpu_data->policy) in intel_pstate_hwp_set()
1172 cpu_data->epp_policy = cpu_data->policy; in intel_pstate_hwp_set()
1174 if (cpu_data->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_hwp_set()
1176 cpu_data->epp_powersave = epp; in intel_pstate_hwp_set()
1184 if (cpu_data->epp_powersave < 0) in intel_pstate_hwp_set()
1190 * - Policy is not changed in intel_pstate_hwp_set()
1191 * - user has manually changed in intel_pstate_hwp_set()
1192 * - Error reading EPB in intel_pstate_hwp_set()
1198 epp = cpu_data->epp_powersave; in intel_pstate_hwp_set()
1207 WRITE_ONCE(cpu_data->hwp_req_cached, value); in intel_pstate_hwp_set()
1215 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_offline()
1227 value |= HWP_ENERGY_PERF_PREFERENCE(cpu->epp_cached); in intel_pstate_hwp_offline()
1233 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_hwp_offline()
1242 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_hwp_offline()
1245 min_perf = HWP_LOWEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in intel_pstate_hwp_offline()
1255 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_offline()
1271 hybrid_clear_cpu_capacity(cpu->cpu); in intel_pstate_hwp_offline()
1301 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, READ_ONCE(cpu->hwp_req_cached)); in intel_pstate_hwp_reenable()
1306 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_suspend()
1308 pr_debug("CPU %d suspending\n", cpu->cpu); in intel_pstate_suspend()
1310 cpu->suspended = true; in intel_pstate_suspend()
1320 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_resume()
1322 pr_debug("CPU %d resuming\n", cpu->cpu); in intel_pstate_resume()
1330 if (cpu->suspended && hwp_active) { in intel_pstate_resume()
1333 /* Re-enable HWP, because "online" has not done that. */ in intel_pstate_resume()
1339 cpu->suspended = false; in intel_pstate_resume()
1358 policy->cpuinfo.max_freq = READ_ONCE(global.no_turbo) ? in __intel_pstate_update_max_freq()
1359 cpudata->pstate.max_freq : cpudata->pstate.turbo_freq; in __intel_pstate_update_max_freq()
1439 ret = intel_pstate_update_status(buf, p ? p - buf : count); in store_status()
1456 return -EAGAIN; in show_turbo_pct()
1461 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1462 no_turbo = cpu->pstate.max_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1464 turbo_pct = 100 - fp_toint(mul_fp(turbo_fp, int_tofp(100))); in show_turbo_pct()
1481 return -EAGAIN; in show_num_pstates()
1485 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_num_pstates()
1501 return -EAGAIN; in show_no_turbo()
1518 return -EINVAL; in store_no_turbo()
1523 count = -EAGAIN; in store_no_turbo()
1531 pr_notice("Turbo disabled by BIOS or unavailable on processor\n"); in store_no_turbo()
1532 count = -EPERM; in store_no_turbo()
1549 int pct = cpu->pstate.max_pstate * 100 / cpu->pstate.turbo_pstate; in store_no_turbo()
1581 req = policy->driver_data; in update_qos_request()
1597 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * perf_pct, 100); in update_qos_request()
1612 return -EINVAL; in store_max_perf_pct()
1618 return -EAGAIN; in store_max_perf_pct()
1645 return -EINVAL; in store_min_perf_pct()
1651 return -EAGAIN; in store_min_perf_pct()
1754 intel_pstate_kobject = kobject_create_and_add("intel_pstate", &dev_root->kobj); in intel_pstate_sysfs_expose_params()
1839 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpudata->cpu); in intel_pstate_notify_work()
1854 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_notify_work()
1885 schedule_delayed_work(&all_cpu_data[this_cpu]->hwp_notify_work, in notify_hwp_interrupt()
1905 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_disable_hwp_interrupt()
1908 cancel_work = cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_disable_hwp_interrupt()
1912 cancel_delayed_work_sync(&cpudata->hwp_notify_work); in intel_pstate_disable_hwp_interrupt()
1925 INIT_DELAYED_WORK(&cpudata->hwp_notify_work, intel_pstate_notify_work); in intel_pstate_enable_hwp_interrupt()
1926 cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_enable_hwp_interrupt()
1933 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, interrupt_mask); in intel_pstate_enable_hwp_interrupt()
1934 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_enable_hwp_interrupt()
1940 cpudata->epp_default = intel_pstate_get_epp(cpudata, 0); in intel_pstate_update_epp_defaults()
1944 * - Is equal or less than 0x80 (default balance_perf EPP) in intel_pstate_update_epp_defaults()
1945 * - But less performance oriented than performance EPP in intel_pstate_update_epp_defaults()
1948 if (hwp_forced && cpudata->epp_default <= HWP_EPP_BALANCE_PERFORMANCE && in intel_pstate_update_epp_defaults()
1949 cpudata->epp_default > HWP_EPP_PERFORMANCE) { in intel_pstate_update_epp_defaults()
1950 epp_values[EPP_INDEX_BALANCE_PERFORMANCE] = cpudata->epp_default; in intel_pstate_update_epp_defaults()
1965 cpudata->epp_default = epp_values[EPP_INDEX_BALANCE_PERFORMANCE]; in intel_pstate_update_epp_defaults()
1966 intel_pstate_set_epp(cpudata, cpudata->epp_default); in intel_pstate_update_epp_defaults()
1973 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_hwp_enable()
1975 wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); in intel_pstate_hwp_enable()
1979 if (cpudata->epp_default >= 0) in intel_pstate_hwp_enable()
2019 vid_fp = cpudata->vid.min + mul_fp( in atom_get_val()
2020 int_tofp(pstate - cpudata->pstate.min_pstate), in atom_get_val()
2021 cpudata->vid.ratio); in atom_get_val()
2023 vid_fp = clamp_t(int32_t, vid_fp, cpudata->vid.min, cpudata->vid.max); in atom_get_val()
2026 if (pstate > cpudata->pstate.max_pstate) in atom_get_val()
2027 vid = cpudata->vid.turbo; in atom_get_val()
2036 /* Defined in Table 35-6 from SDM (Sept 2015) */ in silvermont_get_scaling()
2051 /* Defined in Table 35-10 from SDM (Sept 2015) */ in airmont_get_scaling()
2068 cpudata->vid.min = int_tofp((value >> 8) & 0x7f); in atom_get_vid()
2069 cpudata->vid.max = int_tofp((value >> 16) & 0x7f); in atom_get_vid()
2070 cpudata->vid.ratio = div_fp( in atom_get_vid()
2071 cpudata->vid.max - cpudata->vid.min, in atom_get_vid()
2072 int_tofp(cpudata->pstate.max_pstate - in atom_get_vid()
2073 cpudata->pstate.min_pstate)); in atom_get_vid()
2076 cpudata->vid.turbo = value & 0x7f; in atom_get_vid()
2125 return -ENXIO; in core_get_tdp_ratio()
2144 /* Turbo activation ratio is not used on HWP platforms */ in core_get_max_pstate()
2154 if (tdp_ratio - 1 == tar_levels) { in core_get_max_pstate()
2217 /* P-cores have a smaller perf level-to-freqency scaling factor. */ in hwp_get_cpu_scaling()
2221 /* Use default core scaling for E-cores */ in hwp_get_cpu_scaling()
2226 * If reached here, this system is either non-hybrid (like Tiger in hwp_get_cpu_scaling()
2227 * Lake) or hybrid-capable (like Alder Lake or Raptor Lake) with in hwp_get_cpu_scaling()
2230 * The CPPC nominal_frequency field is 0 for non-hybrid systems, in hwp_get_cpu_scaling()
2238 trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_set_pstate()
2239 cpu->pstate.current_pstate = pstate; in intel_pstate_set_pstate()
2241 * Generally, there is no guarantee that this code will always run on in intel_pstate_set_pstate()
2245 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_pstate_set_pstate()
2251 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); in intel_pstate_set_min_pstate()
2256 int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu->cpu); in intel_pstate_get_cpu_pstates()
2259 cpu->pstate.min_pstate = pstate_funcs.get_min(cpu->cpu); in intel_pstate_get_cpu_pstates()
2260 cpu->pstate.max_pstate_physical = perf_ctl_max_phys; in intel_pstate_get_cpu_pstates()
2261 cpu->pstate.perf_ctl_scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2267 cpu->pstate.scaling = pstate_funcs.get_cpu_scaling(cpu->cpu); in intel_pstate_get_cpu_pstates()
2268 if (cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2273 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2281 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2282 cpu->pstate.max_pstate = pstate_funcs.get_max(cpu->cpu); in intel_pstate_get_cpu_pstates()
2283 cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_get_cpu_pstates()
2286 if (cpu->pstate.scaling == perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2287 cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2288 cpu->pstate.max_freq = cpu->pstate.max_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2289 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2293 cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift(); in intel_pstate_get_cpu_pstates()
2311 u64 hwp_req = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_boost_up()
2312 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_pstate_hwp_boost_up()
2319 * If, P0 (Turbo max) = P1 (Guaranteed max) = min: in intel_pstate_hwp_boost_up()
2321 * If, P0 (Turbo max) > P1 (Guaranteed max) = min: in intel_pstate_hwp_boost_up()
2323 * If, P0 (Turbo max) = P1 (Guaranteed max) > min: in intel_pstate_hwp_boost_up()
2326 * If, P0 (Turbo max) > P1 (Guaranteed max) > min: in intel_pstate_hwp_boost_up()
2332 if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit) in intel_pstate_hwp_boost_up()
2335 if (!cpu->hwp_boost_min) in intel_pstate_hwp_boost_up()
2336 cpu->hwp_boost_min = min_limit; in intel_pstate_hwp_boost_up()
2341 if (cpu->hwp_boost_min < boost_level1) in intel_pstate_hwp_boost_up()
2342 cpu->hwp_boost_min = boost_level1; in intel_pstate_hwp_boost_up()
2343 else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(hwp_cap)) in intel_pstate_hwp_boost_up()
2344 cpu->hwp_boost_min = HWP_GUARANTEED_PERF(hwp_cap); in intel_pstate_hwp_boost_up()
2345 else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(hwp_cap) && in intel_pstate_hwp_boost_up()
2347 cpu->hwp_boost_min = max_limit; in intel_pstate_hwp_boost_up()
2351 hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min; in intel_pstate_hwp_boost_up()
2353 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_up()
2358 if (cpu->hwp_boost_min) { in intel_pstate_hwp_boost_down()
2362 expired = time_after64(cpu->sample.time, cpu->last_update + in intel_pstate_hwp_boost_down()
2365 wrmsrl(MSR_HWP_REQUEST, cpu->hwp_req_cached); in intel_pstate_hwp_boost_down()
2366 cpu->hwp_boost_min = 0; in intel_pstate_hwp_boost_down()
2369 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_down()
2375 cpu->sample.time = time; in intel_pstate_update_util_hwp_local()
2377 if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) { in intel_pstate_update_util_hwp_local()
2380 cpu->sched_flags = 0; in intel_pstate_update_util_hwp_local()
2388 if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC)) in intel_pstate_update_util_hwp_local()
2391 cpu->last_io_update = time; in intel_pstate_update_util_hwp_local()
2406 cpu->sched_flags |= flags; in intel_pstate_update_util_hwp()
2408 if (smp_processor_id() == cpu->cpu) in intel_pstate_update_util_hwp()
2414 struct sample *sample = &cpu->sample; in intel_pstate_calc_avg_perf()
2416 sample->core_avg_perf = div_ext_fp(sample->aperf, sample->mperf); in intel_pstate_calc_avg_perf()
2429 if (cpu->prev_mperf == mperf || cpu->prev_tsc == tsc) { in intel_pstate_sample()
2435 cpu->last_sample_time = cpu->sample.time; in intel_pstate_sample()
2436 cpu->sample.time = time; in intel_pstate_sample()
2437 cpu->sample.aperf = aperf; in intel_pstate_sample()
2438 cpu->sample.mperf = mperf; in intel_pstate_sample()
2439 cpu->sample.tsc = tsc; in intel_pstate_sample()
2440 cpu->sample.aperf -= cpu->prev_aperf; in intel_pstate_sample()
2441 cpu->sample.mperf -= cpu->prev_mperf; in intel_pstate_sample()
2442 cpu->sample.tsc -= cpu->prev_tsc; in intel_pstate_sample()
2444 cpu->prev_aperf = aperf; in intel_pstate_sample()
2445 cpu->prev_mperf = mperf; in intel_pstate_sample()
2446 cpu->prev_tsc = tsc; in intel_pstate_sample()
2451 * that sample.time will always be reset before setting the utilization in intel_pstate_sample()
2454 if (cpu->last_sample_time) { in intel_pstate_sample()
2463 return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz); in get_avg_frequency()
2468 return mul_ext_fp(cpu->pstate.max_pstate_physical, in get_avg_pstate()
2469 cpu->sample.core_avg_perf); in get_avg_pstate()
2474 struct sample *sample = &cpu->sample; in get_target_pstate()
2478 busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift, in get_target_pstate()
2479 sample->tsc); in get_target_pstate()
2481 if (busy_frac < cpu->iowait_boost) in get_target_pstate()
2482 busy_frac = cpu->iowait_boost; in get_target_pstate()
2484 sample->busy_scaled = busy_frac * 100; in get_target_pstate()
2487 cpu->pstate.max_pstate : cpu->pstate.turbo_pstate; in get_target_pstate()
2490 if (target < cpu->pstate.min_pstate) in get_target_pstate()
2491 target = cpu->pstate.min_pstate; in get_target_pstate()
2494 * If the average P-state during the previous cycle was higher than the in get_target_pstate()
2502 target += (avg_pstate - target) >> 1; in get_target_pstate()
2509 int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); in intel_pstate_prepare_request()
2510 int max_pstate = max(min_pstate, cpu->max_perf_ratio); in intel_pstate_prepare_request()
2517 if (pstate == cpu->pstate.current_pstate) in intel_pstate_update_pstate()
2520 cpu->pstate.current_pstate = pstate; in intel_pstate_update_pstate()
2526 int from = cpu->pstate.current_pstate; in intel_pstate_adjust_pstate()
2532 trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_adjust_pstate()
2535 sample = &cpu->sample; in intel_pstate_adjust_pstate()
2536 trace_pstate_sample(mul_ext_fp(100, sample->core_avg_perf), in intel_pstate_adjust_pstate()
2537 fp_toint(sample->busy_scaled), in intel_pstate_adjust_pstate()
2539 cpu->pstate.current_pstate, in intel_pstate_adjust_pstate()
2540 sample->mperf, in intel_pstate_adjust_pstate()
2541 sample->aperf, in intel_pstate_adjust_pstate()
2542 sample->tsc, in intel_pstate_adjust_pstate()
2544 fp_toint(cpu->iowait_boost * 100)); in intel_pstate_adjust_pstate()
2554 if (smp_processor_id() != cpu->cpu) in intel_pstate_update_util()
2557 delta_ns = time - cpu->last_update; in intel_pstate_update_util()
2561 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2562 } else if (cpu->iowait_boost >= ONE_EIGHTH_FP) { in intel_pstate_update_util()
2563 cpu->iowait_boost <<= 1; in intel_pstate_update_util()
2564 if (cpu->iowait_boost > int_tofp(1)) in intel_pstate_update_util()
2565 cpu->iowait_boost = int_tofp(1); in intel_pstate_update_util()
2567 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2569 } else if (cpu->iowait_boost) { in intel_pstate_update_util()
2572 cpu->iowait_boost = 0; in intel_pstate_update_util()
2574 cpu->iowait_boost >>= 1; in intel_pstate_update_util()
2576 cpu->last_update = time; in intel_pstate_update_util()
2577 delta_ns = time - cpu->sample.time; in intel_pstate_update_util()
2688 return -ENOMEM; in intel_pstate_init_cpu()
2692 cpu->cpu = cpunum; in intel_pstate_init_cpu()
2694 cpu->epp_default = -EINVAL; in intel_pstate_init_cpu()
2704 * Re-enable HWP in case this happens after a resume from ACPI in intel_pstate_init_cpu()
2711 cpu->epp_powersave = -EINVAL; in intel_pstate_init_cpu()
2712 cpu->epp_policy = 0; in intel_pstate_init_cpu()
2728 if (cpu->update_util_set) in intel_pstate_set_update_util_hook()
2732 cpu->sample.time = 0; in intel_pstate_set_update_util_hook()
2733 cpufreq_add_update_util_hook(cpu_num, &cpu->update_util, in intel_pstate_set_update_util_hook()
2737 cpu->update_util_set = true; in intel_pstate_set_update_util_hook()
2744 if (!cpu_data->update_util_set) in intel_pstate_clear_update_util_hook()
2748 cpu_data->update_util_set = false; in intel_pstate_clear_update_util_hook()
2755 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_get_max_freq()
2762 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_update_perf_limits()
2778 if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_update_perf_limits()
2788 cpu->cpu, min_policy_perf, max_policy_perf); in intel_pstate_update_perf_limits()
2792 cpu->min_perf_ratio = min_policy_perf; in intel_pstate_update_perf_limits()
2793 cpu->max_perf_ratio = max_policy_perf; in intel_pstate_update_perf_limits()
2795 int turbo_max = cpu->pstate.turbo_pstate; in intel_pstate_update_perf_limits()
2798 /* Global limits are in percent of the maximum turbo P-state. */ in intel_pstate_update_perf_limits()
2803 pr_debug("cpu:%d global_min:%d global_max:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2806 cpu->min_perf_ratio = max(min_policy_perf, global_min); in intel_pstate_update_perf_limits()
2807 cpu->min_perf_ratio = min(cpu->min_perf_ratio, max_policy_perf); in intel_pstate_update_perf_limits()
2808 cpu->max_perf_ratio = min(max_policy_perf, global_max); in intel_pstate_update_perf_limits()
2809 cpu->max_perf_ratio = max(min_policy_perf, cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2812 cpu->min_perf_ratio = min(cpu->min_perf_ratio, in intel_pstate_update_perf_limits()
2813 cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2816 pr_debug("cpu:%d max_perf_ratio:%d min_perf_ratio:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2817 cpu->max_perf_ratio, in intel_pstate_update_perf_limits()
2818 cpu->min_perf_ratio); in intel_pstate_update_perf_limits()
2825 if (!policy->cpuinfo.max_freq) in intel_pstate_set_policy()
2826 return -ENODEV; in intel_pstate_set_policy()
2828 pr_debug("set_policy cpuinfo.max %u policy->max %u\n", in intel_pstate_set_policy()
2829 policy->cpuinfo.max_freq, policy->max); in intel_pstate_set_policy()
2831 cpu = all_cpu_data[policy->cpu]; in intel_pstate_set_policy()
2832 cpu->policy = policy->policy; in intel_pstate_set_policy()
2836 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_pstate_set_policy()
2838 if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_set_policy()
2839 int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); in intel_pstate_set_policy()
2845 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2848 intel_pstate_set_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2858 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2859 intel_pstate_hwp_set(policy->cpu); in intel_pstate_set_policy()
2862 * policy->cur is never updated with the intel_pstate driver, but it in intel_pstate_set_policy()
2865 policy->cur = policy->min; in intel_pstate_set_policy()
2876 cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && in intel_pstate_adjust_policy_max()
2877 policy->max < policy->cpuinfo.max_freq && in intel_pstate_adjust_policy_max()
2878 policy->max > cpu->pstate.max_freq) { in intel_pstate_adjust_policy_max()
2879 pr_debug("policy->max > max non turbo frequency\n"); in intel_pstate_adjust_policy_max()
2880 policy->max = policy->cpuinfo.max_freq; in intel_pstate_adjust_policy_max()
2892 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_verify_cpu_policy()
2896 cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, max_freq); in intel_pstate_verify_cpu_policy()
2903 intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy); in intel_pstate_verify_policy()
2910 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_offline()
2912 pr_debug("CPU %d going offline\n", cpu->cpu); in intel_cpufreq_cpu_offline()
2914 if (cpu->suspended) in intel_cpufreq_cpu_offline()
2935 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_online()
2937 pr_debug("CPU %d going online\n", cpu->cpu); in intel_pstate_cpu_online()
2943 * Re-enable HWP and clear the "suspended" flag to let "resume" in intel_pstate_cpu_online()
2947 cpu->suspended = false; in intel_pstate_cpu_online()
2957 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_cpu_offline()
2964 pr_debug("CPU %d exiting\n", policy->cpu); in intel_pstate_cpu_exit()
2966 policy->fast_switch_possible = false; in intel_pstate_cpu_exit()
2974 rc = intel_pstate_init_cpu(policy->cpu); in __intel_pstate_cpu_init()
2978 cpu = all_cpu_data[policy->cpu]; in __intel_pstate_cpu_init()
2980 cpu->max_perf_ratio = 0xFF; in __intel_pstate_cpu_init()
2981 cpu->min_perf_ratio = 0; in __intel_pstate_cpu_init()
2984 policy->cpuinfo.min_freq = cpu->pstate.min_freq; in __intel_pstate_cpu_init()
2985 policy->cpuinfo.max_freq = READ_ONCE(global.no_turbo) ? in __intel_pstate_cpu_init()
2986 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in __intel_pstate_cpu_init()
2988 policy->min = policy->cpuinfo.min_freq; in __intel_pstate_cpu_init()
2989 policy->max = policy->cpuinfo.max_freq; in __intel_pstate_cpu_init()
2993 policy->fast_switch_possible = true; in __intel_pstate_cpu_init()
3009 policy->policy = CPUFREQ_POLICY_POWERSAVE; in intel_pstate_cpu_init()
3012 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_init()
3014 cpu->epp_cached = intel_pstate_get_epp(cpu, 0); in intel_pstate_cpu_init()
3036 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_verify_policy()
3039 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_cpufreq_verify_policy()
3048 * core_avg_perf) is not needed and so is re-assigned to indicate if the
3051 * (or performance or core_avg_perf) have a fixed y-axis from 0 to 100%,
3070 sample = &cpu->sample; in intel_cpufreq_trace()
3074 cpu->pstate.current_pstate, in intel_cpufreq_trace()
3075 sample->mperf, in intel_cpufreq_trace()
3076 sample->aperf, in intel_cpufreq_trace()
3077 sample->tsc, in intel_cpufreq_trace()
3079 fp_toint(cpu->iowait_boost * 100)); in intel_cpufreq_trace()
3085 u64 prev = READ_ONCE(cpu->hwp_req_cached), value = prev; in intel_cpufreq_hwp_update()
3099 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_hwp_update()
3103 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_hwp_update()
3113 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_cpufreq_perf_ctl_update()
3120 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_update_pstate()
3121 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_update_pstate()
3125 int max_pstate = policy->strict_target ? in intel_cpufreq_update_pstate()
3126 target_pstate : cpu->max_perf_ratio; in intel_cpufreq_update_pstate()
3134 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_update_pstate()
3146 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_target()
3150 freqs.old = policy->cur; in intel_cpufreq_target()
3158 freqs.new = target_pstate * cpu->pstate.scaling; in intel_cpufreq_target()
3168 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_fast_switch()
3175 return target_pstate * cpu->pstate.scaling; in intel_cpufreq_fast_switch()
3184 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_cpufreq_adjust_perf()
3185 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_adjust_perf()
3202 if (min_pstate < cpu->pstate.min_pstate) in intel_cpufreq_adjust_perf()
3203 min_pstate = cpu->pstate.min_pstate; in intel_cpufreq_adjust_perf()
3205 if (min_pstate < cpu->min_perf_ratio) in intel_cpufreq_adjust_perf()
3206 min_pstate = cpu->min_perf_ratio; in intel_cpufreq_adjust_perf()
3208 if (min_pstate > cpu->max_perf_ratio) in intel_cpufreq_adjust_perf()
3209 min_pstate = cpu->max_perf_ratio; in intel_cpufreq_adjust_perf()
3211 max_pstate = min(cap_pstate, cpu->max_perf_ratio); in intel_cpufreq_adjust_perf()
3219 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_adjust_perf()
3230 dev = get_cpu_device(policy->cpu); in intel_cpufreq_cpu_init()
3232 return -ENODEV; in intel_cpufreq_cpu_init()
3238 policy->cpuinfo.transition_latency = INTEL_CPUFREQ_TRANSITION_LATENCY; in intel_cpufreq_cpu_init()
3240 policy->cur = policy->cpuinfo.min_freq; in intel_cpufreq_cpu_init()
3244 ret = -ENOMEM; in intel_cpufreq_cpu_init()
3248 cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_init()
3253 policy->transition_delay_us = INTEL_CPUFREQ_TRANSITION_DELAY_HWP; in intel_cpufreq_cpu_init()
3257 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, &value); in intel_cpufreq_cpu_init()
3258 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_cpu_init()
3260 cpu->epp_cached = intel_pstate_get_epp(cpu, value); in intel_cpufreq_cpu_init()
3262 policy->transition_delay_us = INTEL_CPUFREQ_TRANSITION_DELAY; in intel_cpufreq_cpu_init()
3265 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.min_perf_pct, 100); in intel_cpufreq_cpu_init()
3267 ret = freq_qos_add_request(&policy->constraints, req, FREQ_QOS_MIN, in intel_cpufreq_cpu_init()
3270 dev_err(dev, "Failed to add min-freq constraint (%d)\n", ret); in intel_cpufreq_cpu_init()
3274 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.max_perf_pct, 100); in intel_cpufreq_cpu_init()
3276 ret = freq_qos_add_request(&policy->constraints, req + 1, FREQ_QOS_MAX, in intel_cpufreq_cpu_init()
3279 dev_err(dev, "Failed to add max-freq constraint (%d)\n", ret); in intel_cpufreq_cpu_init()
3283 policy->driver_data = req; in intel_cpufreq_cpu_init()
3301 req = policy->driver_data; in intel_cpufreq_cpu_exit()
3315 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_suspend()
3316 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_cpufreq_suspend()
3324 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_suspend()
3325 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_suspend()
3411 return -EINVAL; in intel_pstate_update_status()
3414 return -EBUSY; in intel_pstate_update_status()
3444 return -EINVAL; in intel_pstate_update_status()
3457 return -ENODEV; in intel_pstate_msrs_not_valid()
3464 pstate_funcs.get_max = funcs->get_max; in copy_cpu_funcs()
3465 pstate_funcs.get_max_physical = funcs->get_max_physical; in copy_cpu_funcs()
3466 pstate_funcs.get_min = funcs->get_min; in copy_cpu_funcs()
3467 pstate_funcs.get_turbo = funcs->get_turbo; in copy_cpu_funcs()
3468 pstate_funcs.get_scaling = funcs->get_scaling; in copy_cpu_funcs()
3469 pstate_funcs.get_val = funcs->get_val; in copy_cpu_funcs()
3470 pstate_funcs.get_vid = funcs->get_vid; in copy_cpu_funcs()
3471 pstate_funcs.get_aperf_mperf_shift = funcs->get_aperf_mperf_shift; in copy_cpu_funcs()
3489 status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer); in intel_pstate_no_acpi_pss()
3494 if (pss && pss->type == ACPI_TYPE_PACKAGE) { in intel_pstate_no_acpi_pss()
3532 if (acpi_has_method(pr->handle, "_PPC")) in intel_pstate_has_acpi_ppc()
3544 /* Hardware vendor-specific info that has its own power management modes */
3547 {"ORACLE", "X4-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3548 {"ORACLE", "X4-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3549 {"ORACLE", "X4-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3550 {"ORACLE", "X3-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3551 {"ORACLE", "X3-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3552 {"ORACLE", "X3-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3559 {"ORACLE", "X6-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
3602 * It may be unsafe to request P-states control from SMM if _PPC support in intel_pstate_request_control_from_smm()
3652 * which can result in one core turbo frequency for
3679 return -ENODEV; in intel_pstate_init()
3688 return -ENODEV; in intel_pstate_init()
3701 hwp_mode_bdw = id->driver_data; in intel_pstate_init()
3716 return -ENODEV; in intel_pstate_init()
3721 return -ENODEV; in intel_pstate_init()
3724 copy_cpu_funcs((struct pstate_funcs *)id->driver_data); in intel_pstate_init()
3729 return -ENODEV; in intel_pstate_init()
3741 pr_info("P-states controlled by the platform\n"); in intel_pstate_init()
3742 return -ENODEV; in intel_pstate_init()
3746 return -ENOTSUPP; in intel_pstate_init()
3748 pr_info("Intel P-state driver initializing\n"); in intel_pstate_init()
3752 return -ENOMEM; in intel_pstate_init()
3766 FIELD_GET(POWERSAVE_MASK, id->driver_data); in intel_pstate_init()
3768 FIELD_GET(BALANCE_POWER_MASK, id->driver_data); in intel_pstate_init()
3770 FIELD_GET(BALANCE_PERFORMANCE_MASK, id->driver_data); in intel_pstate_init()
3772 FIELD_GET(PERFORMANCE_MASK, id->driver_data); in intel_pstate_init()
3781 hybrid_scaling_factor = hybrid_id->driver_data; in intel_pstate_init()
3816 return -EINVAL; in intel_pstate_setup()
3845 MODULE_DESCRIPTION("'intel_pstate' - P state driver Intel Core processors");