Lines Matching full:cpu
21 #include <linux/cpu.h>
33 #include <asm/cpu.h>
100 * to account for cpu idle period
136 * Stores the per cpu model P state limits and current P state.
191 * struct cpudata - Per CPU instance data storage
192 * @cpu: CPU number for this instance data
198 * @pstate: Stores P state limits for this CPU
199 * @vid: Stores VID limits for this CPU
221 * @sched_flags: Store scheduler flags for possible cross CPU update
226 * This structure stores per CPU instance data for all CPUs.
229 int cpu; member
269 * struct pstate_funcs - Per CPU model specific callbacks
275 * @get_cpu_scaling: Get frequency scaling factor for a given cpu
280 * Core and Atom CPU models have different way to get P State limits. This
284 int (*get_max)(int cpu);
285 int (*get_max_physical)(int cpu);
286 int (*get_min)(int cpu);
287 int (*get_turbo)(int cpu);
289 int (*get_cpu_scaling)(int cpu);
347 /* The work item is needed to avoid CPU hotplug locking issues */
357 static void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
363 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_set_itmt_prio()
372 cppc_perf.highest_perf = HWP_HIGHEST_PERF(READ_ONCE(all_cpu_data[cpu]->hwp_cap_cached)); in intel_pstate_set_itmt_prio()
379 sched_set_itmt_core_prio(cppc_perf.highest_perf, cpu); in intel_pstate_set_itmt_prio()
390 * This code can be run during CPU online under the in intel_pstate_set_itmt_prio()
391 * CPU hotplug locks, so sched_set_itmt_support() in intel_pstate_set_itmt_prio()
400 static int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
405 ret = cppc_get_perf_caps(cpu, &cppc_perf); in intel_pstate_get_cppc_guaranteed()
415 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
420 * Compute the perf-to-frequency scaling factor for the given CPU if in intel_pstate_cppc_get_scaling()
423 if (!cppc_get_perf_caps(cpu, &cppc_perf) && in intel_pstate_cppc_get_scaling()
432 static inline void intel_pstate_set_itmt_prio(int cpu) in intel_pstate_set_itmt_prio() argument
439 struct cpudata *cpu; in intel_pstate_init_acpi_perf_limits() local
444 intel_pstate_set_itmt_prio(policy->cpu); in intel_pstate_init_acpi_perf_limits()
451 cpu = all_cpu_data[policy->cpu]; in intel_pstate_init_acpi_perf_limits()
453 ret = acpi_processor_register_performance(&cpu->acpi_perf_data, in intel_pstate_init_acpi_perf_limits()
454 policy->cpu); in intel_pstate_init_acpi_perf_limits()
463 if (cpu->acpi_perf_data.control_register.space_id != in intel_pstate_init_acpi_perf_limits()
471 if (cpu->acpi_perf_data.state_count < 2) in intel_pstate_init_acpi_perf_limits()
474 pr_debug("CPU%u - ACPI _PSS perf data\n", policy->cpu); in intel_pstate_init_acpi_perf_limits()
475 for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { in intel_pstate_init_acpi_perf_limits()
477 (i == cpu->acpi_perf_data.state ? '*' : ' '), i, in intel_pstate_init_acpi_perf_limits()
478 (u32) cpu->acpi_perf_data.states[i].core_frequency, in intel_pstate_init_acpi_perf_limits()
479 (u32) cpu->acpi_perf_data.states[i].power, in intel_pstate_init_acpi_perf_limits()
480 (u32) cpu->acpi_perf_data.states[i].control); in intel_pstate_init_acpi_perf_limits()
483 cpu->valid_pss_table = true; in intel_pstate_init_acpi_perf_limits()
489 cpu->valid_pss_table = false; in intel_pstate_init_acpi_perf_limits()
490 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_init_acpi_perf_limits()
495 struct cpudata *cpu; in intel_pstate_exit_perf_limits() local
497 cpu = all_cpu_data[policy->cpu]; in intel_pstate_exit_perf_limits()
498 if (!cpu->valid_pss_table) in intel_pstate_exit_perf_limits()
501 acpi_processor_unregister_performance(policy->cpu); in intel_pstate_exit_perf_limits()
519 static inline int intel_pstate_get_cppc_guaranteed(int cpu) in intel_pstate_get_cppc_guaranteed() argument
524 static int intel_pstate_cppc_get_scaling(int cpu) in intel_pstate_cppc_get_scaling() argument
530 static int intel_pstate_freq_to_hwp_rel(struct cpudata *cpu, int freq, in intel_pstate_freq_to_hwp_rel() argument
533 if (freq == cpu->pstate.turbo_freq) in intel_pstate_freq_to_hwp_rel()
534 return cpu->pstate.turbo_pstate; in intel_pstate_freq_to_hwp_rel()
536 if (freq == cpu->pstate.max_freq) in intel_pstate_freq_to_hwp_rel()
537 return cpu->pstate.max_pstate; in intel_pstate_freq_to_hwp_rel()
541 return freq / cpu->pstate.scaling; in intel_pstate_freq_to_hwp_rel()
543 return DIV_ROUND_CLOSEST(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
546 return DIV_ROUND_UP(freq, cpu->pstate.scaling); in intel_pstate_freq_to_hwp_rel()
549 static int intel_pstate_freq_to_hwp(struct cpudata *cpu, int freq) in intel_pstate_freq_to_hwp() argument
551 return intel_pstate_freq_to_hwp_rel(cpu, freq, CPUFREQ_RELATION_L); in intel_pstate_freq_to_hwp()
556 * @cpu: Target CPU.
560 * scaling factor between HWP performance levels and CPU frequency will be less
561 * than the scaling factor between P-state values and CPU frequency.
563 * In that case, adjust the CPU parameters used in computations accordingly.
565 static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu) in intel_pstate_hybrid_hwp_adjust() argument
567 int perf_ctl_max_phys = cpu->pstate.max_pstate_physical; in intel_pstate_hybrid_hwp_adjust()
568 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
569 int perf_ctl_turbo = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_hybrid_hwp_adjust()
570 int scaling = cpu->pstate.scaling; in intel_pstate_hybrid_hwp_adjust()
573 pr_debug("CPU%d: perf_ctl_max_phys = %d\n", cpu->cpu, perf_ctl_max_phys); in intel_pstate_hybrid_hwp_adjust()
574 pr_debug("CPU%d: perf_ctl_turbo = %d\n", cpu->cpu, perf_ctl_turbo); in intel_pstate_hybrid_hwp_adjust()
575 pr_debug("CPU%d: perf_ctl_scaling = %d\n", cpu->cpu, perf_ctl_scaling); in intel_pstate_hybrid_hwp_adjust()
576 pr_debug("CPU%d: HWP_CAP guaranteed = %d\n", cpu->cpu, cpu->pstate.max_pstate); in intel_pstate_hybrid_hwp_adjust()
577 pr_debug("CPU%d: HWP_CAP highest = %d\n", cpu->cpu, cpu->pstate.turbo_pstate); in intel_pstate_hybrid_hwp_adjust()
578 pr_debug("CPU%d: HWP-to-frequency scaling factor: %d\n", cpu->cpu, scaling); in intel_pstate_hybrid_hwp_adjust()
580 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
582 cpu->pstate.max_freq = rounddown(cpu->pstate.max_pstate * scaling, in intel_pstate_hybrid_hwp_adjust()
586 cpu->pstate.max_pstate_physical = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
588 freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_hybrid_hwp_adjust()
589 cpu->pstate.min_freq = freq; in intel_pstate_hybrid_hwp_adjust()
594 cpu->pstate.min_pstate = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_hybrid_hwp_adjust()
611 struct cpudata *cpu = all_cpu_data[0]; in min_perf_pct_min() local
612 int turbo_pstate = cpu->pstate.turbo_pstate; in min_perf_pct_min()
615 (cpu->pstate.min_pstate * 100 / turbo_pstate) : 0; in min_perf_pct_min()
626 ret = rdmsrl_on_cpu(cpu_data->cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_get_epb()
643 epp = rdmsrl_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, in intel_pstate_get_epp()
657 static int intel_pstate_set_epb(int cpu, s16 pref) in intel_pstate_set_epb() argument
665 ret = rdmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, &epb); in intel_pstate_set_epb()
670 wrmsrl_on_cpu(cpu, MSR_IA32_ENERGY_PERF_BIAS, epb); in intel_pstate_set_epb()
749 static int intel_pstate_set_epp(struct cpudata *cpu, u32 epp) in intel_pstate_set_epp() argument
758 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_set_epp()
767 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_set_epp()
768 ret = wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_set_epp()
770 cpu->epp_cached = epp; in intel_pstate_set_epp()
803 ret = intel_pstate_set_epb(cpu_data->cpu, epp); in intel_pstate_set_energy_pref_index()
830 struct cpudata *cpu = all_cpu_data[policy->cpu]; in store_energy_performance_preference() local
866 ret = intel_pstate_set_energy_pref_index(cpu, ret, raw, epp); in store_energy_performance_preference()
870 * target CPU before the EPP update and restarted after it, in store_energy_performance_preference()
875 epp = ret ? epp_values[ret] : cpu->epp_default; in store_energy_performance_preference()
877 if (cpu->epp_cached != epp) { in store_energy_performance_preference()
881 ret = intel_pstate_set_epp(cpu, epp); in store_energy_performance_preference()
898 struct cpudata *cpu_data = all_cpu_data[policy->cpu]; in show_energy_performance_preference()
915 struct cpudata *cpu = all_cpu_data[policy->cpu]; in show_base_frequency() local
918 ratio = intel_pstate_get_cppc_guaranteed(policy->cpu); in show_base_frequency()
922 rdmsrl_on_cpu(policy->cpu, MSR_HWP_CAPABILITIES, &cap); in show_base_frequency()
926 freq = ratio * cpu->pstate.scaling; in show_base_frequency()
927 if (cpu->pstate.scaling != cpu->pstate.perf_ctl_scaling) in show_base_frequency()
928 freq = rounddown(freq, cpu->pstate.perf_ctl_scaling); in show_base_frequency()
951 static void hybrid_set_cpu_capacity(struct cpudata *cpu) in hybrid_set_cpu_capacity() argument
953 arch_set_cpu_capacity(cpu->cpu, cpu->capacity_perf, in hybrid_set_cpu_capacity()
955 cpu->capacity_perf, in hybrid_set_cpu_capacity()
956 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
958 pr_debug("CPU%d: perf = %u, max. perf = %u, base perf = %d\n", cpu->cpu, in hybrid_set_cpu_capacity()
959 cpu->capacity_perf, hybrid_max_perf_cpu->capacity_perf, in hybrid_set_cpu_capacity()
960 cpu->pstate.max_pstate_physical); in hybrid_set_cpu_capacity()
968 static void hybrid_get_capacity_perf(struct cpudata *cpu) in hybrid_get_capacity_perf() argument
971 cpu->capacity_perf = cpu->pstate.max_pstate_physical; in hybrid_get_capacity_perf()
975 cpu->capacity_perf = HWP_HIGHEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in hybrid_get_capacity_perf()
983 struct cpudata *cpu = all_cpu_data[cpunum]; in hybrid_set_capacity_of_cpus() local
985 if (cpu) in hybrid_set_capacity_of_cpus()
986 hybrid_set_cpu_capacity(cpu); in hybrid_set_capacity_of_cpus()
997 struct cpudata *cpu = all_cpu_data[cpunum]; in hybrid_update_cpu_capacity_scaling() local
999 if (!cpu) in hybrid_update_cpu_capacity_scaling()
1003 * During initialization, CPU performance at full capacity needs in hybrid_update_cpu_capacity_scaling()
1007 hybrid_get_capacity_perf(cpu); in hybrid_update_cpu_capacity_scaling()
1014 if (cpu == hybrid_max_perf_cpu) in hybrid_update_cpu_capacity_scaling()
1017 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_cpu_capacity_scaling()
1018 max_cap_perf = cpu->capacity_perf; in hybrid_update_cpu_capacity_scaling()
1019 max_perf_cpu = cpu; in hybrid_update_cpu_capacity_scaling()
1028 /* Revert to the flat CPU capacity structure. */ in hybrid_update_cpu_capacity_scaling()
1054 * If hybrid_max_perf_cpu is set at this point, the hybrid CPU capacity in hybrid_init_cpu_capacity_scaling()
1090 static void __intel_pstate_get_hwp_cap(struct cpudata *cpu) in __intel_pstate_get_hwp_cap() argument
1094 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_CAPABILITIES, &cap); in __intel_pstate_get_hwp_cap()
1095 WRITE_ONCE(cpu->hwp_cap_cached, cap); in __intel_pstate_get_hwp_cap()
1096 cpu->pstate.max_pstate = HWP_GUARANTEED_PERF(cap); in __intel_pstate_get_hwp_cap()
1097 cpu->pstate.turbo_pstate = HWP_HIGHEST_PERF(cap); in __intel_pstate_get_hwp_cap()
1100 static void intel_pstate_get_hwp_cap(struct cpudata *cpu) in intel_pstate_get_hwp_cap() argument
1102 int scaling = cpu->pstate.scaling; in intel_pstate_get_hwp_cap()
1104 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_hwp_cap()
1106 cpu->pstate.max_freq = cpu->pstate.max_pstate * scaling; in intel_pstate_get_hwp_cap()
1107 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; in intel_pstate_get_hwp_cap()
1108 if (scaling != cpu->pstate.perf_ctl_scaling) { in intel_pstate_get_hwp_cap()
1109 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_get_hwp_cap()
1111 cpu->pstate.max_freq = rounddown(cpu->pstate.max_freq, in intel_pstate_get_hwp_cap()
1113 cpu->pstate.turbo_freq = rounddown(cpu->pstate.turbo_freq, in intel_pstate_get_hwp_cap()
1118 static void hybrid_update_capacity(struct cpudata *cpu) in hybrid_update_capacity() argument
1128 * The maximum performance of the CPU may have changed, but assume in hybrid_update_capacity()
1133 intel_pstate_get_hwp_cap(cpu); in hybrid_update_capacity()
1135 hybrid_get_capacity_perf(cpu); in hybrid_update_capacity()
1136 /* Should hybrid_max_perf_cpu be replaced by this CPU? */ in hybrid_update_capacity()
1137 if (cpu->capacity_perf > max_cap_perf) { in hybrid_update_capacity()
1138 hybrid_max_perf_cpu = cpu; in hybrid_update_capacity()
1143 /* If this CPU is hybrid_max_perf_cpu, should it be replaced? */ in hybrid_update_capacity()
1144 if (cpu == hybrid_max_perf_cpu && cpu->capacity_perf < max_cap_perf) { in hybrid_update_capacity()
1149 hybrid_set_cpu_capacity(cpu); in hybrid_update_capacity()
1155 static void intel_pstate_hwp_set(unsigned int cpu) in intel_pstate_hwp_set() argument
1157 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_hwp_set()
1168 rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); in intel_pstate_hwp_set()
1211 intel_pstate_set_epb(cpu, epp); in intel_pstate_hwp_set()
1215 wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_set()
1220 static void intel_pstate_hwp_offline(struct cpudata *cpu) in intel_pstate_hwp_offline() argument
1222 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_offline()
1225 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_hwp_offline()
1234 value |= HWP_ENERGY_PERF_PREFERENCE(cpu->epp_cached); in intel_pstate_hwp_offline()
1237 * the CPU is brought back online again and the "performance" in intel_pstate_hwp_offline()
1240 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_hwp_offline()
1249 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_pstate_hwp_offline()
1252 min_perf = HWP_LOWEST_PERF(READ_ONCE(cpu->hwp_cap_cached)); in intel_pstate_hwp_offline()
1262 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_pstate_hwp_offline()
1272 if (hybrid_max_perf_cpu == cpu) in intel_pstate_hwp_offline()
1277 /* Reset the capacity of the CPU going offline to the initial value. */ in intel_pstate_hwp_offline()
1278 hybrid_clear_cpu_capacity(cpu->cpu); in intel_pstate_hwp_offline()
1305 static void intel_pstate_hwp_reenable(struct cpudata *cpu) in intel_pstate_hwp_reenable() argument
1307 intel_pstate_hwp_enable(cpu); in intel_pstate_hwp_reenable()
1308 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, READ_ONCE(cpu->hwp_req_cached)); in intel_pstate_hwp_reenable()
1313 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_suspend() local
1315 pr_debug("CPU %d suspending\n", cpu->cpu); in intel_pstate_suspend()
1317 cpu->suspended = true; in intel_pstate_suspend()
1320 intel_pstate_disable_hwp_interrupt(cpu); in intel_pstate_suspend()
1327 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_resume() local
1329 pr_debug("CPU %d resuming\n", cpu->cpu); in intel_pstate_resume()
1337 if (cpu->suspended && hwp_active) { in intel_pstate_resume()
1341 intel_pstate_hwp_reenable(cpu); in intel_pstate_resume()
1346 cpu->suspended = false; in intel_pstate_resume()
1353 int cpu; in intel_pstate_update_policies() local
1355 for_each_possible_cpu(cpu) in intel_pstate_update_policies()
1356 cpufreq_update_policy(cpu); in intel_pstate_update_policies()
1371 static void intel_pstate_update_limits(unsigned int cpu) in intel_pstate_update_limits() argument
1373 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in intel_pstate_update_limits()
1379 cpudata = all_cpu_data[cpu]; in intel_pstate_update_limits()
1395 int cpu; in intel_pstate_update_limits_for_all() local
1397 for_each_possible_cpu(cpu) { in intel_pstate_update_limits_for_all()
1398 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpu); in intel_pstate_update_limits_for_all()
1403 __intel_pstate_update_max_freq(all_cpu_data[cpu], policy); in intel_pstate_update_limits_for_all()
1455 struct cpudata *cpu; in show_turbo_pct() local
1466 cpu = all_cpu_data[0]; in show_turbo_pct()
1468 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1469 no_turbo = cpu->pstate.max_pstate - cpu->pstate.min_pstate + 1; in show_turbo_pct()
1481 struct cpudata *cpu; in show_num_pstates() local
1491 cpu = all_cpu_data[0]; in show_num_pstates()
1492 total = cpu->pstate.turbo_pstate - cpu->pstate.min_pstate + 1; in show_num_pstates()
1555 struct cpudata *cpu = all_cpu_data[0]; in store_no_turbo() local
1556 int pct = cpu->pstate.max_pstate * 100 / cpu->pstate.turbo_pstate; in store_no_turbo()
1581 struct cpudata *cpu = all_cpu_data[i]; in update_qos_request() local
1595 intel_pstate_get_hwp_cap(cpu); in update_qos_request()
1604 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * perf_pct, 100); in update_qos_request()
1607 pr_warn("Failed to update freq constraint: CPU%d\n", i); in update_qos_request()
1780 * If per cpu limits are enforced there are no global limits, so in intel_pstate_sysfs_expose_params()
1846 struct cpufreq_policy *policy = cpufreq_cpu_acquire(cpudata->cpu); in intel_pstate_notify_work()
1861 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_notify_work()
1912 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_disable_hwp_interrupt()
1915 cancel_work = cpumask_test_and_clear_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_disable_hwp_interrupt()
1933 cpumask_set_cpu(cpudata->cpu, &hwp_intr_enable_mask); in intel_pstate_enable_hwp_interrupt()
1940 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, interrupt_mask); in intel_pstate_enable_hwp_interrupt()
1941 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_STATUS, 0); in intel_pstate_enable_hwp_interrupt()
1962 * If this CPU gen doesn't call for change in balance_perf in intel_pstate_update_epp_defaults()
1980 wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x00); in intel_pstate_hwp_enable()
1982 wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); in intel_pstate_hwp_enable()
2086 static int core_get_min_pstate(int cpu) in core_get_min_pstate() argument
2090 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_min_pstate()
2094 static int core_get_max_pstate_physical(int cpu) in core_get_max_pstate_physical() argument
2098 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &value); in core_get_max_pstate_physical()
2102 static int core_get_tdp_ratio(int cpu, u64 plat_info) in core_get_tdp_ratio() argument
2112 err = rdmsrl_safe_on_cpu(cpu, MSR_CONFIG_TDP_CONTROL, &tdp_ctrl); in core_get_tdp_ratio()
2118 err = rdmsrl_safe_on_cpu(cpu, tdp_msr, &tdp_ratio); in core_get_tdp_ratio()
2135 static int core_get_max_pstate(int cpu) in core_get_max_pstate() argument
2143 rdmsrl_on_cpu(cpu, MSR_PLATFORM_INFO, &plat_info); in core_get_max_pstate()
2146 tdp_ratio = core_get_tdp_ratio(cpu, plat_info); in core_get_max_pstate()
2155 err = rdmsrl_safe_on_cpu(cpu, MSR_TURBO_ACTIVATION_RATIO, &tar); in core_get_max_pstate()
2170 static int core_get_turbo_pstate(int cpu) in core_get_turbo_pstate() argument
2175 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in core_get_turbo_pstate()
2176 nont = core_get_max_pstate(cpu); in core_get_turbo_pstate()
2199 static int knl_get_turbo_pstate(int cpu) in knl_get_turbo_pstate() argument
2204 rdmsrl_on_cpu(cpu, MSR_TURBO_RATIO_LIMIT, &value); in knl_get_turbo_pstate()
2205 nont = core_get_max_pstate(cpu); in knl_get_turbo_pstate()
2212 static int hwp_get_cpu_scaling(int cpu) in hwp_get_cpu_scaling() argument
2215 struct cpuinfo_x86 *c = &cpu_data(cpu); in hwp_get_cpu_scaling()
2235 * the CPU type is not one of the above, so use CPPC to compute the in hwp_get_cpu_scaling()
2236 * scaling factor for this CPU. in hwp_get_cpu_scaling()
2238 return intel_pstate_cppc_get_scaling(cpu); in hwp_get_cpu_scaling()
2241 static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) in intel_pstate_set_pstate() argument
2243 trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_set_pstate()
2244 cpu->pstate.current_pstate = pstate; in intel_pstate_set_pstate()
2247 * the CPU being updated, so force the register update to run on the in intel_pstate_set_pstate()
2248 * right CPU. in intel_pstate_set_pstate()
2250 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_pstate_set_pstate()
2251 pstate_funcs.get_val(cpu, pstate)); in intel_pstate_set_pstate()
2254 static void intel_pstate_set_min_pstate(struct cpudata *cpu) in intel_pstate_set_min_pstate() argument
2256 intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate); in intel_pstate_set_min_pstate()
2259 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) in intel_pstate_get_cpu_pstates() argument
2261 int perf_ctl_max_phys = pstate_funcs.get_max_physical(cpu->cpu); in intel_pstate_get_cpu_pstates()
2264 cpu->pstate.min_pstate = pstate_funcs.get_min(cpu->cpu); in intel_pstate_get_cpu_pstates()
2265 cpu->pstate.max_pstate_physical = perf_ctl_max_phys; in intel_pstate_get_cpu_pstates()
2266 cpu->pstate.perf_ctl_scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2269 __intel_pstate_get_hwp_cap(cpu); in intel_pstate_get_cpu_pstates()
2272 cpu->pstate.scaling = pstate_funcs.get_cpu_scaling(cpu->cpu); in intel_pstate_get_cpu_pstates()
2273 if (cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2274 intel_pstate_hybrid_hwp_adjust(cpu); in intel_pstate_get_cpu_pstates()
2278 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2281 * If the CPU is going online for the first time and it was in intel_pstate_get_cpu_pstates()
2284 hybrid_update_capacity(cpu); in intel_pstate_get_cpu_pstates()
2286 cpu->pstate.scaling = perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2287 cpu->pstate.max_pstate = pstate_funcs.get_max(cpu->cpu); in intel_pstate_get_cpu_pstates()
2288 cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(cpu->cpu); in intel_pstate_get_cpu_pstates()
2291 if (cpu->pstate.scaling == perf_ctl_scaling) { in intel_pstate_get_cpu_pstates()
2292 cpu->pstate.min_freq = cpu->pstate.min_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2293 cpu->pstate.max_freq = cpu->pstate.max_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2294 cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * perf_ctl_scaling; in intel_pstate_get_cpu_pstates()
2298 cpu->aperf_mperf_shift = pstate_funcs.get_aperf_mperf_shift(); in intel_pstate_get_cpu_pstates()
2301 pstate_funcs.get_vid(cpu); in intel_pstate_get_cpu_pstates()
2303 intel_pstate_set_min_pstate(cpu); in intel_pstate_get_cpu_pstates()
2314 static inline void intel_pstate_hwp_boost_up(struct cpudata *cpu) in intel_pstate_hwp_boost_up() argument
2316 u64 hwp_req = READ_ONCE(cpu->hwp_req_cached); in intel_pstate_hwp_boost_up()
2317 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_pstate_hwp_boost_up()
2337 if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit) in intel_pstate_hwp_boost_up()
2340 if (!cpu->hwp_boost_min) in intel_pstate_hwp_boost_up()
2341 cpu->hwp_boost_min = min_limit; in intel_pstate_hwp_boost_up()
2346 if (cpu->hwp_boost_min < boost_level1) in intel_pstate_hwp_boost_up()
2347 cpu->hwp_boost_min = boost_level1; in intel_pstate_hwp_boost_up()
2348 else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(hwp_cap)) in intel_pstate_hwp_boost_up()
2349 cpu->hwp_boost_min = HWP_GUARANTEED_PERF(hwp_cap); in intel_pstate_hwp_boost_up()
2350 else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(hwp_cap) && in intel_pstate_hwp_boost_up()
2352 cpu->hwp_boost_min = max_limit; in intel_pstate_hwp_boost_up()
2356 hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min; in intel_pstate_hwp_boost_up()
2358 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_up()
2361 static inline void intel_pstate_hwp_boost_down(struct cpudata *cpu) in intel_pstate_hwp_boost_down() argument
2363 if (cpu->hwp_boost_min) { in intel_pstate_hwp_boost_down()
2367 expired = time_after64(cpu->sample.time, cpu->last_update + in intel_pstate_hwp_boost_down()
2370 wrmsrl(MSR_HWP_REQUEST, cpu->hwp_req_cached); in intel_pstate_hwp_boost_down()
2371 cpu->hwp_boost_min = 0; in intel_pstate_hwp_boost_down()
2374 cpu->last_update = cpu->sample.time; in intel_pstate_hwp_boost_down()
2377 static inline void intel_pstate_update_util_hwp_local(struct cpudata *cpu, in intel_pstate_update_util_hwp_local() argument
2380 cpu->sample.time = time; in intel_pstate_update_util_hwp_local()
2382 if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) { in intel_pstate_update_util_hwp_local()
2385 cpu->sched_flags = 0; in intel_pstate_update_util_hwp_local()
2389 * some IO bound activity is scheduled on this CPU with just in intel_pstate_update_util_hwp_local()
2393 if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC)) in intel_pstate_update_util_hwp_local()
2396 cpu->last_io_update = time; in intel_pstate_update_util_hwp_local()
2399 intel_pstate_hwp_boost_up(cpu); in intel_pstate_update_util_hwp_local()
2402 intel_pstate_hwp_boost_down(cpu); in intel_pstate_update_util_hwp_local()
2409 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util_hwp() local
2411 cpu->sched_flags |= flags; in intel_pstate_update_util_hwp()
2413 if (smp_processor_id() == cpu->cpu) in intel_pstate_update_util_hwp()
2414 intel_pstate_update_util_hwp_local(cpu, time); in intel_pstate_update_util_hwp()
2417 static inline void intel_pstate_calc_avg_perf(struct cpudata *cpu) in intel_pstate_calc_avg_perf() argument
2419 struct sample *sample = &cpu->sample; in intel_pstate_calc_avg_perf()
2424 static inline bool intel_pstate_sample(struct cpudata *cpu, u64 time) in intel_pstate_sample() argument
2434 if (cpu->prev_mperf == mperf || cpu->prev_tsc == tsc) { in intel_pstate_sample()
2440 cpu->last_sample_time = cpu->sample.time; in intel_pstate_sample()
2441 cpu->sample.time = time; in intel_pstate_sample()
2442 cpu->sample.aperf = aperf; in intel_pstate_sample()
2443 cpu->sample.mperf = mperf; in intel_pstate_sample()
2444 cpu->sample.tsc = tsc; in intel_pstate_sample()
2445 cpu->sample.aperf -= cpu->prev_aperf; in intel_pstate_sample()
2446 cpu->sample.mperf -= cpu->prev_mperf; in intel_pstate_sample()
2447 cpu->sample.tsc -= cpu->prev_tsc; in intel_pstate_sample()
2449 cpu->prev_aperf = aperf; in intel_pstate_sample()
2450 cpu->prev_mperf = mperf; in intel_pstate_sample()
2451 cpu->prev_tsc = tsc; in intel_pstate_sample()
2459 if (cpu->last_sample_time) { in intel_pstate_sample()
2460 intel_pstate_calc_avg_perf(cpu); in intel_pstate_sample()
2466 static inline int32_t get_avg_frequency(struct cpudata *cpu) in get_avg_frequency() argument
2468 return mul_ext_fp(cpu->sample.core_avg_perf, cpu_khz); in get_avg_frequency()
2471 static inline int32_t get_avg_pstate(struct cpudata *cpu) in get_avg_pstate() argument
2473 return mul_ext_fp(cpu->pstate.max_pstate_physical, in get_avg_pstate()
2474 cpu->sample.core_avg_perf); in get_avg_pstate()
2477 static inline int32_t get_target_pstate(struct cpudata *cpu) in get_target_pstate() argument
2479 struct sample *sample = &cpu->sample; in get_target_pstate()
2483 busy_frac = div_fp(sample->mperf << cpu->aperf_mperf_shift, in get_target_pstate()
2486 if (busy_frac < cpu->iowait_boost) in get_target_pstate()
2487 busy_frac = cpu->iowait_boost; in get_target_pstate()
2492 cpu->pstate.max_pstate : cpu->pstate.turbo_pstate; in get_target_pstate()
2495 if (target < cpu->pstate.min_pstate) in get_target_pstate()
2496 target = cpu->pstate.min_pstate; in get_target_pstate()
2502 * loss related to moving the workload from one CPU to another within in get_target_pstate()
2505 avg_pstate = get_avg_pstate(cpu); in get_target_pstate()
2512 static int intel_pstate_prepare_request(struct cpudata *cpu, int pstate) in intel_pstate_prepare_request() argument
2514 int min_pstate = max(cpu->pstate.min_pstate, cpu->min_perf_ratio); in intel_pstate_prepare_request()
2515 int max_pstate = max(min_pstate, cpu->max_perf_ratio); in intel_pstate_prepare_request()
2520 static void intel_pstate_update_pstate(struct cpudata *cpu, int pstate) in intel_pstate_update_pstate() argument
2522 if (pstate == cpu->pstate.current_pstate) in intel_pstate_update_pstate()
2525 cpu->pstate.current_pstate = pstate; in intel_pstate_update_pstate()
2526 wrmsrl(MSR_IA32_PERF_CTL, pstate_funcs.get_val(cpu, pstate)); in intel_pstate_update_pstate()
2529 static void intel_pstate_adjust_pstate(struct cpudata *cpu) in intel_pstate_adjust_pstate() argument
2531 int from = cpu->pstate.current_pstate; in intel_pstate_adjust_pstate()
2535 target_pstate = get_target_pstate(cpu); in intel_pstate_adjust_pstate()
2536 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_pstate_adjust_pstate()
2537 trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); in intel_pstate_adjust_pstate()
2538 intel_pstate_update_pstate(cpu, target_pstate); in intel_pstate_adjust_pstate()
2540 sample = &cpu->sample; in intel_pstate_adjust_pstate()
2544 cpu->pstate.current_pstate, in intel_pstate_adjust_pstate()
2548 get_avg_frequency(cpu), in intel_pstate_adjust_pstate()
2549 fp_toint(cpu->iowait_boost * 100)); in intel_pstate_adjust_pstate()
2555 struct cpudata *cpu = container_of(data, struct cpudata, update_util); in intel_pstate_update_util() local
2559 if (smp_processor_id() != cpu->cpu) in intel_pstate_update_util()
2562 delta_ns = time - cpu->last_update; in intel_pstate_update_util()
2564 /* Start over if the CPU may have been idle. */ in intel_pstate_update_util()
2566 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2567 } else if (cpu->iowait_boost >= ONE_EIGHTH_FP) { in intel_pstate_update_util()
2568 cpu->iowait_boost <<= 1; in intel_pstate_update_util()
2569 if (cpu->iowait_boost > int_tofp(1)) in intel_pstate_update_util()
2570 cpu->iowait_boost = int_tofp(1); in intel_pstate_update_util()
2572 cpu->iowait_boost = ONE_EIGHTH_FP; in intel_pstate_update_util()
2574 } else if (cpu->iowait_boost) { in intel_pstate_update_util()
2575 /* Clear iowait_boost if the CPU may have been idle. */ in intel_pstate_update_util()
2577 cpu->iowait_boost = 0; in intel_pstate_update_util()
2579 cpu->iowait_boost >>= 1; in intel_pstate_update_util()
2581 cpu->last_update = time; in intel_pstate_update_util()
2582 delta_ns = time - cpu->sample.time; in intel_pstate_update_util()
2586 if (intel_pstate_sample(cpu, time)) in intel_pstate_update_util()
2587 intel_pstate_adjust_pstate(cpu); in intel_pstate_update_util()
2686 struct cpudata *cpu; in intel_pstate_init_cpu() local
2688 cpu = all_cpu_data[cpunum]; in intel_pstate_init_cpu()
2690 if (!cpu) { in intel_pstate_init_cpu()
2691 cpu = kzalloc(sizeof(*cpu), GFP_KERNEL); in intel_pstate_init_cpu()
2692 if (!cpu) in intel_pstate_init_cpu()
2695 WRITE_ONCE(all_cpu_data[cpunum], cpu); in intel_pstate_init_cpu()
2697 cpu->cpu = cpunum; in intel_pstate_init_cpu()
2699 cpu->epp_default = -EINVAL; in intel_pstate_init_cpu()
2702 intel_pstate_hwp_enable(cpu); in intel_pstate_init_cpu()
2710 * S3 if the CPU was offline during the whole system/resume in intel_pstate_init_cpu()
2713 intel_pstate_hwp_reenable(cpu); in intel_pstate_init_cpu()
2716 cpu->epp_powersave = -EINVAL; in intel_pstate_init_cpu()
2717 cpu->epp_policy = CPUFREQ_POLICY_UNKNOWN; in intel_pstate_init_cpu()
2719 intel_pstate_get_cpu_pstates(cpu); in intel_pstate_init_cpu()
2721 pr_debug("controlling: cpu %d\n", cpunum); in intel_pstate_init_cpu()
2728 struct cpudata *cpu = all_cpu_data[cpu_num]; in intel_pstate_set_update_util_hook() local
2733 if (cpu->update_util_set) in intel_pstate_set_update_util_hook()
2737 cpu->sample.time = 0; in intel_pstate_set_update_util_hook()
2738 cpufreq_add_update_util_hook(cpu_num, &cpu->update_util, in intel_pstate_set_update_util_hook()
2742 cpu->update_util_set = true; in intel_pstate_set_update_util_hook()
2745 static void intel_pstate_clear_update_util_hook(unsigned int cpu) in intel_pstate_clear_update_util_hook() argument
2747 struct cpudata *cpu_data = all_cpu_data[cpu]; in intel_pstate_clear_update_util_hook()
2752 cpufreq_remove_update_util_hook(cpu); in intel_pstate_clear_update_util_hook()
2757 static int intel_pstate_get_max_freq(struct cpudata *cpu) in intel_pstate_get_max_freq() argument
2760 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_get_max_freq()
2763 static void intel_pstate_update_perf_limits(struct cpudata *cpu, in intel_pstate_update_perf_limits() argument
2767 int perf_ctl_scaling = cpu->pstate.perf_ctl_scaling; in intel_pstate_update_perf_limits()
2783 if (hwp_active && cpu->pstate.scaling != perf_ctl_scaling) { in intel_pstate_update_perf_limits()
2787 max_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2789 min_policy_perf = intel_pstate_freq_to_hwp(cpu, freq); in intel_pstate_update_perf_limits()
2792 pr_debug("cpu:%d min_policy_perf:%d max_policy_perf:%d\n", in intel_pstate_update_perf_limits()
2793 cpu->cpu, min_policy_perf, max_policy_perf); in intel_pstate_update_perf_limits()
2797 cpu->min_perf_ratio = min_policy_perf; in intel_pstate_update_perf_limits()
2798 cpu->max_perf_ratio = max_policy_perf; in intel_pstate_update_perf_limits()
2800 int turbo_max = cpu->pstate.turbo_pstate; in intel_pstate_update_perf_limits()
2808 pr_debug("cpu:%d global_min:%d global_max:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2811 cpu->min_perf_ratio = max(min_policy_perf, global_min); in intel_pstate_update_perf_limits()
2812 cpu->min_perf_ratio = min(cpu->min_perf_ratio, max_policy_perf); in intel_pstate_update_perf_limits()
2813 cpu->max_perf_ratio = min(max_policy_perf, global_max); in intel_pstate_update_perf_limits()
2814 cpu->max_perf_ratio = max(min_policy_perf, cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2817 cpu->min_perf_ratio = min(cpu->min_perf_ratio, in intel_pstate_update_perf_limits()
2818 cpu->max_perf_ratio); in intel_pstate_update_perf_limits()
2821 pr_debug("cpu:%d max_perf_ratio:%d min_perf_ratio:%d\n", cpu->cpu, in intel_pstate_update_perf_limits()
2822 cpu->max_perf_ratio, in intel_pstate_update_perf_limits()
2823 cpu->min_perf_ratio); in intel_pstate_update_perf_limits()
2828 struct cpudata *cpu; in intel_pstate_set_policy() local
2836 cpu = all_cpu_data[policy->cpu]; in intel_pstate_set_policy()
2837 cpu->policy = policy->policy; in intel_pstate_set_policy()
2841 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_pstate_set_policy()
2843 if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { in intel_pstate_set_policy()
2844 int pstate = max(cpu->pstate.min_pstate, cpu->max_perf_ratio); in intel_pstate_set_policy()
2850 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2851 intel_pstate_set_pstate(cpu, pstate); in intel_pstate_set_policy()
2853 intel_pstate_set_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2863 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_set_policy()
2864 intel_pstate_hwp_set(policy->cpu); in intel_pstate_set_policy()
2877 static void intel_pstate_adjust_policy_max(struct cpudata *cpu, in intel_pstate_adjust_policy_max() argument
2881 cpu->pstate.max_pstate_physical > cpu->pstate.max_pstate && in intel_pstate_adjust_policy_max()
2883 policy->max > cpu->pstate.max_freq) { in intel_pstate_adjust_policy_max()
2889 static void intel_pstate_verify_cpu_policy(struct cpudata *cpu, in intel_pstate_verify_cpu_policy() argument
2895 intel_pstate_get_hwp_cap(cpu); in intel_pstate_verify_cpu_policy()
2897 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in intel_pstate_verify_cpu_policy()
2899 max_freq = intel_pstate_get_max_freq(cpu); in intel_pstate_verify_cpu_policy()
2903 intel_pstate_adjust_policy_max(cpu, policy); in intel_pstate_verify_cpu_policy()
2908 intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy); in intel_pstate_verify_policy()
2915 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_offline() local
2917 pr_debug("CPU %d going offline\n", cpu->cpu); in intel_cpufreq_cpu_offline()
2919 if (cpu->suspended) in intel_cpufreq_cpu_offline()
2923 * If the CPU is an SMT thread and it goes offline with the performance in intel_cpufreq_cpu_offline()
2926 * performance on CPU offline to prevent that from happening. in intel_cpufreq_cpu_offline()
2929 intel_pstate_hwp_offline(cpu); in intel_cpufreq_cpu_offline()
2931 intel_pstate_set_min_pstate(cpu); in intel_cpufreq_cpu_offline()
2940 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_online() local
2942 pr_debug("CPU %d going online\n", cpu->cpu); in intel_pstate_cpu_online()
2951 intel_pstate_hwp_reenable(cpu); in intel_pstate_cpu_online()
2952 cpu->suspended = false; in intel_pstate_cpu_online()
2954 hybrid_update_capacity(cpu); in intel_pstate_cpu_online()
2962 intel_pstate_clear_update_util_hook(policy->cpu); in intel_pstate_cpu_offline()
2969 pr_debug("CPU %d exiting\n", policy->cpu); in intel_pstate_cpu_exit()
2976 struct cpudata *cpu; in __intel_pstate_cpu_init() local
2979 rc = intel_pstate_init_cpu(policy->cpu); in __intel_pstate_cpu_init()
2983 cpu = all_cpu_data[policy->cpu]; in __intel_pstate_cpu_init()
2985 cpu->max_perf_ratio = 0xFF; in __intel_pstate_cpu_init()
2986 cpu->min_perf_ratio = 0; in __intel_pstate_cpu_init()
2989 policy->cpuinfo.min_freq = cpu->pstate.min_freq; in __intel_pstate_cpu_init()
2991 cpu->pstate.max_freq : cpu->pstate.turbo_freq; in __intel_pstate_cpu_init()
3017 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_pstate_cpu_init() local
3019 cpu->epp_cached = intel_pstate_get_epp(cpu, 0); in intel_pstate_cpu_init()
3041 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_verify_policy() local
3043 intel_pstate_verify_cpu_policy(cpu, policy); in intel_cpufreq_verify_policy()
3044 intel_pstate_update_perf_limits(cpu, policy->min, policy->max); in intel_cpufreq_verify_policy()
3065 static void intel_cpufreq_trace(struct cpudata *cpu, unsigned int trace_type, int old_pstate) in intel_cpufreq_trace() argument
3072 if (!intel_pstate_sample(cpu, ktime_get())) in intel_cpufreq_trace()
3075 sample = &cpu->sample; in intel_cpufreq_trace()
3079 cpu->pstate.current_pstate, in intel_cpufreq_trace()
3083 get_avg_frequency(cpu), in intel_cpufreq_trace()
3084 fp_toint(cpu->iowait_boost * 100)); in intel_cpufreq_trace()
3087 static void intel_cpufreq_hwp_update(struct cpudata *cpu, u32 min, u32 max, in intel_cpufreq_hwp_update() argument
3090 u64 prev = READ_ONCE(cpu->hwp_req_cached), value = prev; in intel_cpufreq_hwp_update()
3104 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_hwp_update()
3108 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_hwp_update()
3111 static void intel_cpufreq_perf_ctl_update(struct cpudata *cpu, in intel_cpufreq_perf_ctl_update() argument
3116 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
3118 wrmsrl_on_cpu(cpu->cpu, MSR_IA32_PERF_CTL, in intel_cpufreq_perf_ctl_update()
3119 pstate_funcs.get_val(cpu, target_pstate)); in intel_cpufreq_perf_ctl_update()
3125 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_update_pstate() local
3126 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_update_pstate()
3128 target_pstate = intel_pstate_prepare_request(cpu, target_pstate); in intel_cpufreq_update_pstate()
3131 target_pstate : cpu->max_perf_ratio; in intel_cpufreq_update_pstate()
3133 intel_cpufreq_hwp_update(cpu, target_pstate, max_pstate, 0, in intel_cpufreq_update_pstate()
3136 intel_cpufreq_perf_ctl_update(cpu, target_pstate, fast_switch); in intel_cpufreq_update_pstate()
3139 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_update_pstate()
3141 intel_cpufreq_trace(cpu, fast_switch ? INTEL_PSTATE_TRACE_FAST_SWITCH : in intel_cpufreq_update_pstate()
3151 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_target() local
3160 target_pstate = intel_pstate_freq_to_hwp_rel(cpu, freqs.new, relation); in intel_cpufreq_target()
3163 freqs.new = target_pstate * cpu->pstate.scaling; in intel_cpufreq_target()
3173 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_fast_switch() local
3176 target_pstate = intel_pstate_freq_to_hwp(cpu, target_freq); in intel_cpufreq_fast_switch()
3180 return target_pstate * cpu->pstate.scaling; in intel_cpufreq_fast_switch()
3188 struct cpudata *cpu = all_cpu_data[cpunum]; in intel_cpufreq_adjust_perf() local
3189 u64 hwp_cap = READ_ONCE(cpu->hwp_cap_cached); in intel_cpufreq_adjust_perf()
3190 int old_pstate = cpu->pstate.current_pstate; in intel_cpufreq_adjust_perf()
3207 if (min_pstate < cpu->pstate.min_pstate) in intel_cpufreq_adjust_perf()
3208 min_pstate = cpu->pstate.min_pstate; in intel_cpufreq_adjust_perf()
3210 if (min_pstate < cpu->min_perf_ratio) in intel_cpufreq_adjust_perf()
3211 min_pstate = cpu->min_perf_ratio; in intel_cpufreq_adjust_perf()
3213 if (min_pstate > cpu->max_perf_ratio) in intel_cpufreq_adjust_perf()
3214 min_pstate = cpu->max_perf_ratio; in intel_cpufreq_adjust_perf()
3216 max_pstate = min(cap_pstate, cpu->max_perf_ratio); in intel_cpufreq_adjust_perf()
3222 intel_cpufreq_hwp_update(cpu, min_pstate, max_pstate, target_pstate, true); in intel_cpufreq_adjust_perf()
3224 cpu->pstate.current_pstate = target_pstate; in intel_cpufreq_adjust_perf()
3225 intel_cpufreq_trace(cpu, INTEL_PSTATE_TRACE_FAST_SWITCH, old_pstate); in intel_cpufreq_adjust_perf()
3231 struct cpudata *cpu; in intel_cpufreq_cpu_init() local
3235 dev = get_cpu_device(policy->cpu); in intel_cpufreq_cpu_init()
3253 cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_cpu_init()
3260 intel_pstate_get_hwp_cap(cpu); in intel_cpufreq_cpu_init()
3262 rdmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, &value); in intel_cpufreq_cpu_init()
3263 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_cpu_init()
3265 cpu->epp_cached = intel_pstate_get_epp(cpu, value); in intel_cpufreq_cpu_init()
3270 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.min_perf_pct, 100); in intel_cpufreq_cpu_init()
3279 freq = DIV_ROUND_UP(cpu->pstate.turbo_freq * global.max_perf_pct, 100); in intel_cpufreq_cpu_init()
3320 struct cpudata *cpu = all_cpu_data[policy->cpu]; in intel_cpufreq_suspend() local
3321 u64 value = READ_ONCE(cpu->hwp_req_cached); in intel_cpufreq_suspend()
3329 wrmsrl_on_cpu(cpu->cpu, MSR_HWP_REQUEST, value); in intel_cpufreq_suspend()
3330 WRITE_ONCE(cpu->hwp_req_cached, value); in intel_cpufreq_suspend()
3355 unsigned int cpu; in intel_pstate_driver_cleanup() local
3358 for_each_online_cpu(cpu) { in intel_pstate_driver_cleanup()
3359 if (all_cpu_data[cpu]) { in intel_pstate_driver_cleanup()
3361 intel_pstate_clear_update_util_hook(cpu); in intel_pstate_driver_cleanup()
3363 kfree(all_cpu_data[cpu]); in intel_pstate_driver_cleanup()
3364 WRITE_ONCE(all_cpu_data[cpu], NULL); in intel_pstate_driver_cleanup()
3740 pr_info("CPU model not supported\n"); in intel_pstate_init()