Lines Matching refs:cpu
229 int cpu; member
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);
352 static void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
358 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_set_itmt_prio()
368 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
375 sched_set_itmt_core_prio(cppc_perf.highest_perf, cpu); in intel_pstate_set_itmt_prio()
396 static int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
401 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_get_cppc_guaranteed()
411 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
416 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_cppc_get_scaling()
431 static inline void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
438 struct cpudata *cpu; in intel_pstate_init_acpi_perf_limits() local
443 intel_pstate_set_itmt_prio(policy->cpu); in intel_pstate_init_acpi_perf_limits()
450 cpu = all_cpu_data[policy->cpu]; in intel_pstate_init_acpi_perf_limits()
452 ret = acpi_processor_register_performance(&cpu->acpi_perf_data, in intel_pstate_init_acpi_perf_limits()
453 policy->cpu); in intel_pstate_init_acpi_perf_limits()
462 if (cpu->acpi_perf_data.control_register.space_id != in intel_pstate_init_acpi_perf_limits()
470 if (cpu->acpi_perf_data.state_count < 2) in intel_pstate_init_acpi_perf_limits()
473 pr_debug("CPU%u - ACPI _PSS perf data\n", policy->cpu); in intel_pstate_init_acpi_perf_limits()
474 for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { in intel_pstate_init_acpi_perf_limits()
476 (i == cpu->acpi_perf_data.state ? '*' : ' '), i, in intel_pstate_init_acpi_perf_limits()
477 (u32) cpu->acpi_perf_data.states[i].core_frequency, in intel_pstate_init_acpi_perf_limits()
478 (u32) cpu->acpi_perf_data.states[i].power, in intel_pstate_init_acpi_perf_limits()
479 (u32) cpu->acpi_perf_data.states[i].control); in intel_pstate_init_acpi_perf_limits()
482 cpu->valid_pss_table = true; in intel_pstate_init_acpi_perf_limits()
488 cpu->valid_pss_table = false; in intel_pstate_init_acpi_perf_limits()
489 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_init_acpi_perf_limits()
494 struct cpudata *cpu; in intel_pstate_exit_perf_limits() local
496 cpu = all_cpu_data[policy->cpu]; in intel_pstate_exit_perf_limits()
497 if (!cpu->valid_pss_table) in intel_pstate_exit_perf_limits()
500 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_exit_perf_limits()
518 static inline int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
523 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
529 static int intel_pstate_freq_to_hwp_rel(struct cpudata *cpu, int freq, in intel_pstate_freq_to_hwp_rel() argument
532 if (freq == cpu->pstate.turbo_freq) in intel_pstate_freq_to_hwp_rel()
533 return cpu->pstate.turbo_pstate; in intel_pstate_freq_to_hwp_rel()
535 if (freq == cpu->pstate.max_freq) in intel_pstate_freq_to_hwp_rel()
536 return cpu->pstate.max_pstate; in intel_pstate_freq_to_hwp_rel()
540 return freq / cpu->pstate.scaling; in intel_pstate_freq_to_hwp_rel()
542 return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
545 return DIV_ROUND_UP(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
548 static int intel_pstate_freq_to_hwp(struct cpudata *cpu, int freq) in intel_pstate_freq_to_hwp() argument
550 return intel_pstate_freq_to_hwp_rel(cpu, freq, CPUFREQ_RELATION_L); in intel_pstate_freq_to_hwp()
564 static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu) in intel_pstate_hybrid_hwp_adjust() argument
566 int perf_ctl_max_phys = cpu->pstate.max_pstate_physical; in intel_pstate_hybrid_hwp_adjust()
567 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
568 int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_hybrid_hwp_adjust()
569 int scaling = cpu->pstate.scaling; in intel_pstate_hybrid_hwp_adjust()
572 pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys); in intel_pstate_hybrid_hwp_adjust()
573 pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo); in intel_pstate_hybrid_hwp_adjust()
574 pr_debug("CPU%d: perf_ctl_scaling = %d\n", cpu->cpu, perf_ctl_scaling); in intel_pstate_hybrid_hwp_adjust()
575 pr_debug("CPU%d: HWP_CAP guaranteed = %d\n", cpu->cpu, cpu->pstate.max_pstate); in intel_pstate_hybrid_hwp_adjust()
576 pr_debug("CPU%d: HWP_CAP highest = %d\n", cpu->cpu, cpu->pstate.turbo_pstate); in intel_pstate_hybrid_hwp_adjust()
577 pr_debug("CPU%d: HWP-to-frequency scaling factor: %d\n", cpu->cpu, scaling); in intel_pstate_hybrid_hwp_adjust()
579 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
581 cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
585 cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
587 freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
588 cpu->pstate.min_freq = freq; in intel_pstate_hybrid_hwp_adjust()
593 cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
599 struct cpudata *cpu; in update_turbo_state() local
601 cpu = all_cpu_data[0]; in update_turbo_state()
605 cpu->pstate.max_pstate == cpu->pstate.turbo_pstate); in update_turbo_state()
610 struct cpudata *cpu = all_cpu_data[0]; in min_perf_pct_min() local
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()
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()
656 static int intel_pstate_set_epb(int cpu, s16 pref) in intel_pstate_set_epb() argument
664 ret = rdmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_set_epb()
669 wrmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, epb); in intel_pstate_set_epb()
748 static int intel_pstate_set_epp(struct cpudata *cpu, u32 epp) in intel_pstate_set_epp() argument
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()
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() local
865 ret = intel_pstate_set_energy_pref_index(cpu, ret, raw, epp); 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()
880 ret = intel_pstate_set_epp(cpu, 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() local
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()
941 static void __intel_pstate_get_hwp_cap(struct cpudata *cpu) in __intel_pstate_get_hwp_cap() argument
945 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_CAPABILITIES, &cap); in __intel_pstate_get_hwp_cap()
946 WRITE_ONCE(cpu->hwp_cap_cached, cap); in __intel_pstate_get_hwp_cap()
947 cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(cap); in __intel_pstate_get_hwp_cap()
948 cpu->pstate.turbo_pstate = HWP_HIGHEST_PERF(cap); in __intel_pstate_get_hwp_cap()
951 static void intel_pstate_get_hwp_cap(struct cpudata *cpu) in intel_pstate_get_hwp_cap() argument
953 int scaling = cpu->pstate.scaling; in intel_pstate_get_hwp_cap()
955 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_hwp_cap()
957 cpu->pstate.max_freq = cpu->pstate.max_pstate * scaling; in intel_pstate_get_hwp_cap()
958 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; in intel_pstate_get_hwp_cap()
959 if (scaling != cpu->pstate.perf_ctl_scaling) { in intel_pstate_get_hwp_cap()
960 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_get_hwp_cap()
962 cpu->pstate.max_freq = rounddown(cpu->pstate.max_freq, in intel_pstate_get_hwp_cap()
964 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_freq, in intel_pstate_get_hwp_cap()
969 static void intel_pstate_hwp_set(unsigned int cpu) in intel_pstate_hwp_set() argument
971 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_hwp_set()
982 rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); in intel_pstate_hwp_set()
1025 intel_pstate_set_epb(cpu, epp); in intel_pstate_hwp_set()
1029 wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_set()
1034 static void intel_pstate_hwp_offline(struct cpudata *cpu) in intel_pstate_hwp_offline() argument
1036 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_offline()
1039 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_hwp_offline()
1048 value |= HWP_ENERGY_PERF_PREFERENCE(cpu->epp_cached); in intel_pstate_hwp_offline()
1054 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_hwp_offline()
1063 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_hwp_offline()
1066 min_perf = HWP_LOWEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in intel_pstate_hwp_offline()
1076 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_offline()
1103 static void intel_pstate_hwp_reenable(struct cpudata *cpu) in intel_pstate_hwp_reenable() argument
1105 intel_pstate_hwp_enable(cpu); in intel_pstate_hwp_reenable()
1106 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, READ_ONCE(cpu->hwp_req_cached)); in intel_pstate_hwp_reenable()
1111 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_suspend() local
1113 pr_debug("CPU %d suspending\n", cpu->cpu); in intel_pstate_suspend()
1115 cpu->suspended = true; in intel_pstate_suspend()
1118 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_suspend()
1125 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_resume() local
1127 pr_debug("CPU %d resuming\n", cpu->cpu); in intel_pstate_resume()
1135 if (cpu->suspended && hwp_active) { in intel_pstate_resume()
1139 intel_pstate_hwp_reenable(cpu); in intel_pstate_resume()
1144 cpu->suspended = false; in intel_pstate_resume()
1151 int cpu; in intel_pstate_update_policies() local
1153 for_each_possible_cpu(cpu) in intel_pstate_update_policies()
1154 cpufreq_update_policy(cpu); in intel_pstate_update_policies()
1165 static void intel_pstate_update_max_freq(unsigned int cpu) in intel_pstate_update_max_freq() argument
1167 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in intel_pstate_update_max_freq()
1172 __intel_pstate_update_max_freq(all_cpu_data[cpu], policy); in intel_pstate_update_max_freq()
1177 static void intel_pstate_update_limits(unsigned int cpu) in intel_pstate_update_limits() argument
1189 for_each_possible_cpu(cpu) in intel_pstate_update_limits()
1190 intel_pstate_update_max_freq(cpu); in intel_pstate_update_limits()
1192 cpufreq_update_policy(cpu); in intel_pstate_update_limits()
1237 struct cpudata *cpu; in show_turbo_pct() local
1248 cpu = all_cpu_data[0]; in show_turbo_pct()
1250 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1251 no_turbo = cpu->pstate.max_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1263 struct cpudata *cpu; in show_num_pstates() local
1273 cpu = all_cpu_data[0]; in show_num_pstates()
1274 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_num_pstates()
1334 struct cpudata *cpu = all_cpu_data[0]; in store_no_turbo() local
1335 int pct = cpu->pstate.max_pstate * 100 / cpu->pstate.turbo_pstate; in store_no_turbo()
1359 struct cpudata *cpu = all_cpu_data[i]; in update_qos_request() local
1373 intel_pstate_get_hwp_cap(cpu); in update_qos_request()
1382 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * perf_pct, 100); in update_qos_request()
1624 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpudata->cpu); in intel_pstate_notify_work()
1633 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_notify_work()
1694 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_disable_hwp_interrupt()
1697 if (cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask)) in intel_pstate_disable_hwp_interrupt()
1710 cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_enable_hwp_interrupt()
1714 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x01); in intel_pstate_enable_hwp_interrupt()
1715 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_enable_hwp_interrupt()
1754 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_hwp_enable()
1756 wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); in intel_pstate_hwp_enable()
1860 static int core_get_min_pstate(int cpu) in core_get_min_pstate() argument
1864 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_min_pstate()
1868 static int core_get_max_pstate_physical(int cpu) in core_get_max_pstate_physical() argument
1872 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_max_pstate_physical()
1876 static int core_get_tdp_ratio(int cpu, u64 plat_info) in core_get_tdp_ratio() argument
1886 err = rdmsrl_safe_on_cpu(cpu, MSR_CONFIG_TDP_CONTROL, &tdp_ctrl); in core_get_tdp_ratio()
1892 err = rdmsrl_safe_on_cpu(cpu, tdp_msr, &tdp_ratio); in core_get_tdp_ratio()
1909 static int core_get_max_pstate(int cpu) in core_get_max_pstate() argument
1917 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &plat_info); in core_get_max_pstate()
1920 tdp_ratio = core_get_tdp_ratio(cpu, plat_info); in core_get_max_pstate()
1929 err = rdmsrl_safe_on_cpu(cpu, MSR_TURBO_ACTIVATION_RATIO, &tar); in core_get_max_pstate()
1944 static int core_get_turbo_pstate(int cpu) in core_get_turbo_pstate() argument
1949 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in core_get_turbo_pstate()
1950 nont = core_get_max_pstate(cpu); in core_get_turbo_pstate()
1973 static int knl_get_turbo_pstate(int cpu) in knl_get_turbo_pstate() argument
1978 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in knl_get_turbo_pstate()
1979 nont = core_get_max_pstate(cpu); in knl_get_turbo_pstate()
1993 static int hwp_get_cpu_scaling(int cpu) in hwp_get_cpu_scaling() argument
1997 smp_call_function_single(cpu, hybrid_get_type, &cpu_type, 1); in hwp_get_cpu_scaling()
2014 return intel_pstate_cppc_get_scaling(cpu); in hwp_get_cpu_scaling()
2017 static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) in intel_pstate_set_pstate() argument
2019 trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_set_pstate()
2020 cpu->pstate.current_pstate = pstate; in intel_pstate_set_pstate()
2026 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_pstate_set_pstate()
2027 pstate_funcs.get_val(cpu, pstate)); in intel_pstate_set_pstate()
2030 static void intel_pstate_set_min_pstate(struct cpudata *cpu) in intel_pstate_set_min_pstate() argument
2032 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); in intel_pstate_set_min_pstate()
2035 static void intel_pstate_max_within_limits(struct cpudata *cpu) in intel_pstate_max_within_limits() argument
2037 int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); in intel_pstate_max_within_limits()
2040 intel_pstate_set_pstate(cpu, pstate); in intel_pstate_max_within_limits()
2043 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) in intel_pstate_get_cpu_pstates() argument
2045 int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu->cpu); in intel_pstate_get_cpu_pstates()
2048 cpu->pstate.min_pstate = pstate_funcs.get_min(cpu->cpu); in intel_pstate_get_cpu_pstates()
2049 cpu->pstate.max_pstate_physical = perf_ctl_max_phys; in intel_pstate_get_cpu_pstates()
2050 cpu->pstate.perf_ctl_scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2053 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_cpu_pstates()
2056 cpu->pstate.scaling = pstate_funcs.get_cpu_scaling(cpu->cpu); in intel_pstate_get_cpu_pstates()
2057 if (cpu->pstate.scaling != perf_ctl_scaling) in intel_pstate_get_cpu_pstates()
2058 intel_pstate_hybrid_hwp_adjust(cpu); in intel_pstate_get_cpu_pstates()
2060 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2063 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2064 cpu->pstate.max_pstate = pstate_funcs.get_max(cpu->cpu); in intel_pstate_get_cpu_pstates()
2065 cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_get_cpu_pstates()
2068 if (cpu->pstate.scaling == perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2069 cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2070 cpu->pstate.max_freq = cpu->pstate.max_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2071 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2075 cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift(); in intel_pstate_get_cpu_pstates()
2078 pstate_funcs.get_vid(cpu); in intel_pstate_get_cpu_pstates()
2080 intel_pstate_set_min_pstate(cpu); in intel_pstate_get_cpu_pstates()
2091 static inline void intel_pstate_hwp_boost_up(struct cpudata *cpu) in intel_pstate_hwp_boost_up() argument
2093 u64 hwp_req = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_boost_up()
2094 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_pstate_hwp_boost_up()
2114 if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit) in intel_pstate_hwp_boost_up()
2117 if (!cpu->hwp_boost_min) in intel_pstate_hwp_boost_up()
2118 cpu->hwp_boost_min = min_limit; in intel_pstate_hwp_boost_up()
2123 if (cpu->hwp_boost_min < boost_level1) in intel_pstate_hwp_boost_up()
2124 cpu->hwp_boost_min = boost_level1; in intel_pstate_hwp_boost_up()
2125 else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(hwp_cap)) in intel_pstate_hwp_boost_up()
2126 cpu->hwp_boost_min = HWP_GUARANTEED_PERF(hwp_cap); in intel_pstate_hwp_boost_up()
2127 else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(hwp_cap) && in intel_pstate_hwp_boost_up()
2129 cpu->hwp_boost_min = max_limit; in intel_pstate_hwp_boost_up()
2133 hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min; in intel_pstate_hwp_boost_up()
2135 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_up()
2138 static inline void intel_pstate_hwp_boost_down(struct cpudata *cpu) in intel_pstate_hwp_boost_down() argument
2140 if (cpu->hwp_boost_min) { in intel_pstate_hwp_boost_down()
2144 expired = time_after64(cpu->sample.time, cpu->last_update + in intel_pstate_hwp_boost_down()
2147 wrmsrl(MSR_HWP_REQUEST, cpu->hwp_req_cached); in intel_pstate_hwp_boost_down()
2148 cpu->hwp_boost_min = 0; in intel_pstate_hwp_boost_down()
2151 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_down()
2154 static inline void intel_pstate_update_util_hwp_local(struct cpudata *cpu, in intel_pstate_update_util_hwp_local() argument
2157 cpu->sample.time = time; in intel_pstate_update_util_hwp_local()
2159 if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) { in intel_pstate_update_util_hwp_local()
2162 cpu->sched_flags = 0; in intel_pstate_update_util_hwp_local()
2170 if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC)) in intel_pstate_update_util_hwp_local()
2173 cpu->last_io_update = time; in intel_pstate_update_util_hwp_local()
2176 intel_pstate_hwp_boost_up(cpu); in intel_pstate_update_util_hwp_local()
2179 intel_pstate_hwp_boost_down(cpu); in intel_pstate_update_util_hwp_local()
2186 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util_hwp() local
2188 cpu->sched_flags |= flags; in intel_pstate_update_util_hwp()
2190 if (smp_processor_id() == cpu->cpu) in intel_pstate_update_util_hwp()
2191 intel_pstate_update_util_hwp_local(cpu, time); in intel_pstate_update_util_hwp()
2194 static inline void intel_pstate_calc_avg_perf(struct cpudata *cpu) in intel_pstate_calc_avg_perf() argument
2196 struct sample *sample = &cpu->sample; in intel_pstate_calc_avg_perf()
2201 static inline bool intel_pstate_sample(struct cpudata *cpu, u64 time) in intel_pstate_sample() argument
2211 if (cpu->prev_mperf == mperf || cpu->prev_tsc == tsc) { in intel_pstate_sample()
2217 cpu->last_sample_time = cpu->sample.time; in intel_pstate_sample()
2218 cpu->sample.time = time; in intel_pstate_sample()
2219 cpu->sample.aperf = aperf; in intel_pstate_sample()
2220 cpu->sample.mperf = mperf; in intel_pstate_sample()
2221 cpu->sample.tsc = tsc; in intel_pstate_sample()
2222 cpu->sample.aperf -= cpu->prev_aperf; in intel_pstate_sample()
2223 cpu->sample.mperf -= cpu->prev_mperf; in intel_pstate_sample()
2224 cpu->sample.tsc -= cpu->prev_tsc; in intel_pstate_sample()
2226 cpu->prev_aperf = aperf; in intel_pstate_sample()
2227 cpu->prev_mperf = mperf; in intel_pstate_sample()
2228 cpu->prev_tsc = tsc; in intel_pstate_sample()
2236 if (cpu->last_sample_time) { in intel_pstate_sample()
2237 intel_pstate_calc_avg_perf(cpu); in intel_pstate_sample()
2243 static inline int32_t get_avg_frequency(struct cpudata *cpu) in get_avg_frequency() argument
2245 return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz); in get_avg_frequency()
2248 static inline int32_t get_avg_pstate(struct cpudata *cpu) in get_avg_pstate() argument
2250 return mul_ext_fp(cpu->pstate.max_pstate_physical, in get_avg_pstate()
2251 cpu->sample.core_avg_perf); in get_avg_pstate()
2254 static inline int32_t get_target_pstate(struct cpudata *cpu) in get_target_pstate() argument
2256 struct sample *sample = &cpu->sample; in get_target_pstate()
2260 busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift, in get_target_pstate()
2263 if (busy_frac < cpu->iowait_boost) in get_target_pstate()
2264 busy_frac = cpu->iowait_boost; in get_target_pstate()
2269 cpu->pstate.max_pstate : cpu->pstate.turbo_pstate; in get_target_pstate()
2272 if (target < cpu->pstate.min_pstate) in get_target_pstate()
2273 target = cpu->pstate.min_pstate; in get_target_pstate()
2282 avg_pstate = get_avg_pstate(cpu); in get_target_pstate()
2289 static int intel_pstate_prepare_request(struct cpudata *cpu, int pstate) in intel_pstate_prepare_request() argument
2291 int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); in intel_pstate_prepare_request()
2292 int max_pstate = max(min_pstate, cpu->max_perf_ratio); in intel_pstate_prepare_request()
2297 static void intel_pstate_update_pstate(struct cpudata *cpu, int pstate) in intel_pstate_update_pstate() argument
2299 if (pstate == cpu->pstate.current_pstate) in intel_pstate_update_pstate()
2302 cpu->pstate.current_pstate = pstate; in intel_pstate_update_pstate()
2303 wrmsrl(MSR_IA32_PERF_CTL, pstate_funcs.get_val(cpu, pstate)); in intel_pstate_update_pstate()
2306 static void intel_pstate_adjust_pstate(struct cpudata *cpu) in intel_pstate_adjust_pstate() argument
2308 int from = cpu->pstate.current_pstate; in intel_pstate_adjust_pstate()
2314 target_pstate = get_target_pstate(cpu); in intel_pstate_adjust_pstate()
2315 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_pstate_adjust_pstate()
2316 trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_adjust_pstate()
2317 intel_pstate_update_pstate(cpu, target_pstate); in intel_pstate_adjust_pstate()
2319 sample = &cpu->sample; in intel_pstate_adjust_pstate()
2323 cpu->pstate.current_pstate, in intel_pstate_adjust_pstate()
2327 get_avg_frequency(cpu), in intel_pstate_adjust_pstate()
2328 fp_toint(cpu->iowait_boost * 100)); in intel_pstate_adjust_pstate()
2334 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util() local
2338 if (smp_processor_id() != cpu->cpu) in intel_pstate_update_util()
2341 delta_ns = time - cpu->last_update; in intel_pstate_update_util()
2345 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2346 } else if (cpu->iowait_boost >= ONE_EIGHTH_FP) { in intel_pstate_update_util()
2347 cpu->iowait_boost <<= 1; in intel_pstate_update_util()
2348 if (cpu->iowait_boost > int_tofp(1)) in intel_pstate_update_util()
2349 cpu->iowait_boost = int_tofp(1); in intel_pstate_update_util()
2351 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2353 } else if (cpu->iowait_boost) { in intel_pstate_update_util()
2356 cpu->iowait_boost = 0; in intel_pstate_update_util()
2358 cpu->iowait_boost >>= 1; in intel_pstate_update_util()
2360 cpu->last_update = time; in intel_pstate_update_util()
2361 delta_ns = time - cpu->sample.time; in intel_pstate_update_util()
2365 if (intel_pstate_sample(cpu, time)) in intel_pstate_update_util()
2366 intel_pstate_adjust_pstate(cpu); in intel_pstate_update_util()
2458 struct cpudata *cpu; in intel_pstate_init_cpu() local
2460 cpu = all_cpu_data[cpunum]; in intel_pstate_init_cpu()
2462 if (!cpu) { in intel_pstate_init_cpu()
2463 cpu = kzalloc(sizeof(*cpu), GFP_KERNEL); in intel_pstate_init_cpu()
2464 if (!cpu) in intel_pstate_init_cpu()
2467 WRITE_ONCE(all_cpu_data[cpunum], cpu); in intel_pstate_init_cpu()
2469 cpu->cpu = cpunum; in intel_pstate_init_cpu()
2471 cpu->epp_default = -EINVAL; in intel_pstate_init_cpu()
2474 intel_pstate_hwp_enable(cpu); in intel_pstate_init_cpu()
2485 intel_pstate_hwp_reenable(cpu); in intel_pstate_init_cpu()
2488 cpu->epp_powersave = -EINVAL; in intel_pstate_init_cpu()
2489 cpu->epp_policy = 0; in intel_pstate_init_cpu()
2491 intel_pstate_get_cpu_pstates(cpu); in intel_pstate_init_cpu()
2500 struct cpudata *cpu = all_cpu_data[cpu_num]; in intel_pstate_set_update_util_hook() local
2505 if (cpu->update_util_set) in intel_pstate_set_update_util_hook()
2509 cpu->sample.time = 0; in intel_pstate_set_update_util_hook()
2510 cpufreq_add_update_util_hook(cpu_num, &cpu->update_util, in intel_pstate_set_update_util_hook()
2514 cpu->update_util_set = true; in intel_pstate_set_update_util_hook()
2517 static void intel_pstate_clear_update_util_hook(unsigned int cpu) in intel_pstate_clear_update_util_hook() argument
2519 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_clear_update_util_hook()
2524 cpufreq_remove_update_util_hook(cpu); in intel_pstate_clear_update_util_hook()
2529 static int intel_pstate_get_max_freq(struct cpudata *cpu) in intel_pstate_get_max_freq() argument
2532 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_get_max_freq()
2535 static void intel_pstate_update_perf_limits(struct cpudata *cpu, in intel_pstate_update_perf_limits() argument
2539 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_update_perf_limits()
2555 if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_update_perf_limits()
2559 max_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2561 min_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2565 cpu->cpu, min_policy_perf, max_policy_perf); in intel_pstate_update_perf_limits()
2569 cpu->min_perf_ratio = min_policy_perf; in intel_pstate_update_perf_limits()
2570 cpu->max_perf_ratio = max_policy_perf; in intel_pstate_update_perf_limits()
2572 int turbo_max = cpu->pstate.turbo_pstate; in intel_pstate_update_perf_limits()
2580 pr_debug("cpu:%d global_min:%d global_max:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2583 cpu->min_perf_ratio = max(min_policy_perf, global_min); in intel_pstate_update_perf_limits()
2584 cpu->min_perf_ratio = min(cpu->min_perf_ratio, max_policy_perf); in intel_pstate_update_perf_limits()
2585 cpu->max_perf_ratio = min(max_policy_perf, global_max); in intel_pstate_update_perf_limits()
2586 cpu->max_perf_ratio = max(min_policy_perf, cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2589 cpu->min_perf_ratio = min(cpu->min_perf_ratio, in intel_pstate_update_perf_limits()
2590 cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2593 pr_debug("cpu:%d max_perf_ratio:%d min_perf_ratio:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2594 cpu->max_perf_ratio, in intel_pstate_update_perf_limits()
2595 cpu->min_perf_ratio); in intel_pstate_update_perf_limits()
2600 struct cpudata *cpu; in intel_pstate_set_policy() local
2608 cpu = all_cpu_data[policy->cpu]; in intel_pstate_set_policy()
2609 cpu->policy = policy->policy; in intel_pstate_set_policy()
2613 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_pstate_set_policy()
2615 if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_set_policy()
2620 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2621 intel_pstate_max_within_limits(cpu); in intel_pstate_set_policy()
2623 intel_pstate_set_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2633 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2634 intel_pstate_hwp_set(policy->cpu); in intel_pstate_set_policy()
2647 static void intel_pstate_adjust_policy_max(struct cpudata *cpu, in intel_pstate_adjust_policy_max() argument
2651 cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && in intel_pstate_adjust_policy_max()
2653 policy->max > cpu->pstate.max_freq) { in intel_pstate_adjust_policy_max()
2659 static void intel_pstate_verify_cpu_policy(struct cpudata *cpu, in intel_pstate_verify_cpu_policy() argument
2666 intel_pstate_get_hwp_cap(cpu); in intel_pstate_verify_cpu_policy()
2668 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_verify_cpu_policy()
2670 max_freq = intel_pstate_get_max_freq(cpu); in intel_pstate_verify_cpu_policy()
2674 intel_pstate_adjust_policy_max(cpu, policy); in intel_pstate_verify_cpu_policy()
2679 intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy); in intel_pstate_verify_policy()
2686 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_offline() local
2688 pr_debug("CPU %d going offline\n", cpu->cpu); in intel_cpufreq_cpu_offline()
2690 if (cpu->suspended) in intel_cpufreq_cpu_offline()
2700 intel_pstate_hwp_offline(cpu); in intel_cpufreq_cpu_offline()
2702 intel_pstate_set_min_pstate(cpu); in intel_cpufreq_cpu_offline()
2711 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_online() local
2713 pr_debug("CPU %d going online\n", cpu->cpu); in intel_pstate_cpu_online()
2722 intel_pstate_hwp_reenable(cpu); in intel_pstate_cpu_online()
2723 cpu->suspended = false; in intel_pstate_cpu_online()
2731 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_cpu_offline()
2738 pr_debug("CPU %d exiting\n", policy->cpu); in intel_pstate_cpu_exit()
2747 struct cpudata *cpu; in __intel_pstate_cpu_init() local
2750 rc = intel_pstate_init_cpu(policy->cpu); in __intel_pstate_cpu_init()
2754 cpu = all_cpu_data[policy->cpu]; in __intel_pstate_cpu_init()
2756 cpu->max_perf_ratio = 0xFF; in __intel_pstate_cpu_init()
2757 cpu->min_perf_ratio = 0; in __intel_pstate_cpu_init()
2760 policy->cpuinfo.min_freq = cpu->pstate.min_freq; in __intel_pstate_cpu_init()
2764 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in __intel_pstate_cpu_init()
2790 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_init() local
2792 cpu->epp_cached = intel_pstate_get_epp(cpu, 0); in intel_pstate_cpu_init()
2814 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_verify_policy() local
2816 intel_pstate_verify_cpu_policy(cpu, policy); in intel_cpufreq_verify_policy()
2817 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_cpufreq_verify_policy()
2838 static void intel_cpufreq_trace(struct cpudata *cpu, unsigned int trace_type, int old_pstate) in intel_cpufreq_trace() argument
2845 if (!intel_pstate_sample(cpu, ktime_get())) in intel_cpufreq_trace()
2848 sample = &cpu->sample; in intel_cpufreq_trace()
2852 cpu->pstate.current_pstate, in intel_cpufreq_trace()
2856 get_avg_frequency(cpu), in intel_cpufreq_trace()
2857 fp_toint(cpu->iowait_boost * 100)); in intel_cpufreq_trace()
2860 static void intel_cpufreq_hwp_update(struct cpudata *cpu, u32 min, u32 max, in intel_cpufreq_hwp_update() argument
2863 u64 prev = READ_ONCE(cpu->hwp_req_cached), value = prev; in intel_cpufreq_hwp_update()
2877 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_hwp_update()
2881 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_hwp_update()
2884 static void intel_cpufreq_perf_ctl_update(struct cpudata *cpu, in intel_cpufreq_perf_ctl_update() argument
2889 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
2891 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_cpufreq_perf_ctl_update()
2892 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
2898 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_update_pstate() local
2899 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_update_pstate()
2901 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_cpufreq_update_pstate()
2904 target_pstate : cpu->max_perf_ratio; in intel_cpufreq_update_pstate()
2906 intel_cpufreq_hwp_update(cpu, target_pstate, max_pstate, 0, in intel_cpufreq_update_pstate()
2909 intel_cpufreq_perf_ctl_update(cpu, target_pstate, fast_switch); in intel_cpufreq_update_pstate()
2912 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_update_pstate()
2914 intel_cpufreq_trace(cpu, fast_switch ? INTEL_PSTATE_TRACE_FAST_SWITCH : in intel_cpufreq_update_pstate()
2924 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_target() local
2935 target_pstate = intel_pstate_freq_to_hwp_rel(cpu, freqs.new, relation); in intel_cpufreq_target()
2938 freqs.new = target_pstate * cpu->pstate.scaling; in intel_cpufreq_target()
2948 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_fast_switch() local
2953 target_pstate = intel_pstate_freq_to_hwp(cpu, target_freq); in intel_cpufreq_fast_switch()
2957 return target_pstate * cpu->pstate.scaling; in intel_cpufreq_fast_switch()
2965 struct cpudata *cpu = all_cpu_data[cpunum]; in intel_cpufreq_adjust_perf() local
2966 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_cpufreq_adjust_perf()
2967 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_adjust_perf()
2984 if (min_pstate < cpu->pstate.min_pstate) in intel_cpufreq_adjust_perf()
2985 min_pstate = cpu->pstate.min_pstate; in intel_cpufreq_adjust_perf()
2987 if (min_pstate < cpu->min_perf_ratio) in intel_cpufreq_adjust_perf()
2988 min_pstate = cpu->min_perf_ratio; in intel_cpufreq_adjust_perf()
2990 if (min_pstate > cpu->max_perf_ratio) in intel_cpufreq_adjust_perf()
2991 min_pstate = cpu->max_perf_ratio; in intel_cpufreq_adjust_perf()
2993 max_pstate = min(cap_pstate, cpu->max_perf_ratio); in intel_cpufreq_adjust_perf()
2999 intel_cpufreq_hwp_update(cpu, min_pstate, max_pstate, target_pstate, true); in intel_cpufreq_adjust_perf()
3001 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_adjust_perf()
3002 intel_cpufreq_trace(cpu, INTEL_PSTATE_TRACE_FAST_SWITCH, old_pstate); in intel_cpufreq_adjust_perf()
3008 struct cpudata *cpu; in intel_cpufreq_cpu_init() local
3012 dev = get_cpu_device(policy->cpu); in intel_cpufreq_cpu_init()
3030 cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_init()
3037 intel_pstate_get_hwp_cap(cpu); in intel_cpufreq_cpu_init()
3039 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, &value); in intel_cpufreq_cpu_init()
3040 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_cpu_init()
3042 cpu->epp_cached = intel_pstate_get_epp(cpu, value); in intel_cpufreq_cpu_init()
3047 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.min_perf_pct, 100); in intel_cpufreq_cpu_init()
3056 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.max_perf_pct, 100); in intel_cpufreq_cpu_init()
3097 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_suspend() local
3098 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_cpufreq_suspend()
3106 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_suspend()
3107 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_suspend()
3132 unsigned int cpu; in intel_pstate_driver_cleanup() local
3135 for_each_online_cpu(cpu) { in intel_pstate_driver_cleanup()
3136 if (all_cpu_data[cpu]) { in intel_pstate_driver_cleanup()
3138 intel_pstate_clear_update_util_hook(cpu); in intel_pstate_driver_cleanup()
3141 kfree(all_cpu_data[cpu]); in intel_pstate_driver_cleanup()
3142 WRITE_ONCE(all_cpu_data[cpu], NULL); in intel_pstate_driver_cleanup()