Lines Matching +full:y +full:- +full:rp
1 // SPDX-License-Identifier: GPL-2.0-only
27 #include <asm/intel-family.h>
79 #define NR_RAW_PRIMITIVES (NR_RAPL_PRIMITIVES - 2)
94 int (*check_unit)(struct rapl_package *rp, int cpu);
96 u64 (*compute_time_window)(struct rapl_package *rp, u64 val,
131 static void rapl_init_domains(struct rapl_package *rp);
140 static void package_power_limit_irq_save(struct rapl_package *rp);
172 return -EIO; in get_energy_counter()
186 struct rapl_package *rp = rd->rp; in release_zone() local
191 if (rd->id == RAPL_DOMAIN_PACKAGE) { in release_zone()
193 rp->domains = NULL; in release_zone()
205 if (rd->rpl[i].name) in find_nr_power_limit()
216 if (rd->state & DOMAIN_STATE_BIOS_LOCKED) in set_domain_enable()
217 return -EACCES; in set_domain_enable()
221 if (rapl_defaults->set_floor_freq) in set_domain_enable()
222 rapl_defaults->set_floor_freq(rd, mode); in set_domain_enable()
233 if (rd->state & DOMAIN_STATE_BIOS_LOCKED) { in get_domain_enable()
240 return -EIO; in get_domain_enable()
294 * index in that some PLs maybe missing due to non-existent MSRs. So we
302 if ((rd->rpl[i].name) && j++ == cid) { in contraint_to_pl()
309 return -EINVAL; in contraint_to_pl()
316 struct rapl_package *rp; in set_power_limit() local
328 rp = rd->rp; in set_power_limit()
330 if (rd->state & DOMAIN_STATE_BIOS_LOCKED) { in set_power_limit()
331 dev_warn(&power_zone->dev, in set_power_limit()
332 "%s locked by BIOS, monitoring only\n", rd->name); in set_power_limit()
333 ret = -EACCES; in set_power_limit()
337 switch (rd->rpl[id].prim_id) { in set_power_limit()
348 ret = -EINVAL; in set_power_limit()
351 package_power_limit_irq_save(rp); in set_power_limit()
374 switch (rd->rpl[id].prim_id) { in get_current_power_limit()
386 return -EINVAL; in get_current_power_limit()
389 ret = -EIO; in get_current_power_limit()
414 switch (rd->rpl[id].prim_id) { in set_time_window()
422 ret = -EINVAL; in set_time_window()
446 switch (rd->rpl[id].prim_id) { in get_time_window()
462 return -EINVAL; in get_time_window()
482 return rd->rpl[id].name; in get_constraint_name()
496 switch (rd->rpl[id].prim_id) { in get_max_power()
508 return -EINVAL; in get_max_power()
511 ret = -EIO; in get_max_power()
516 if (rd->rpl[id].prim_id == PL4_ENABLE) in get_max_power()
534 static void rapl_init_domains(struct rapl_package *rp) in rapl_init_domains() argument
538 struct rapl_domain *rd = rp->domains; in rapl_init_domains()
541 unsigned int mask = rp->domain_map & (1 << i); in rapl_init_domains()
546 rd->rp = rp; in rapl_init_domains()
548 if (i == RAPL_DOMAIN_PLATFORM && rp->id > 0) { in rapl_init_domains()
549 snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "psys-%d", in rapl_init_domains()
550 topology_physical_package_id(rp->lead_cpu)); in rapl_init_domains()
552 snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "%s", in rapl_init_domains()
555 rd->id = i; in rapl_init_domains()
556 rd->rpl[0].prim_id = PL1_ENABLE; in rapl_init_domains()
557 rd->rpl[0].name = pl1_name; in rapl_init_domains()
563 if (rp->priv->limits[i] >= 2) { in rapl_init_domains()
564 rd->rpl[1].prim_id = PL2_ENABLE; in rapl_init_domains()
565 rd->rpl[1].name = pl2_name; in rapl_init_domains()
569 if (rp->priv->limits[i] == 3) { in rapl_init_domains()
570 rd->rpl[2].prim_id = PL4_ENABLE; in rapl_init_domains()
571 rd->rpl[2].name = pl4_name; in rapl_init_domains()
575 rd->regs[j] = rp->priv->regs[i][j]; in rapl_init_domains()
579 rd->domain_energy_unit = in rapl_init_domains()
580 rapl_defaults->dram_domain_energy_unit; in rapl_init_domains()
581 if (rd->domain_energy_unit) in rapl_init_domains()
583 rd->domain_energy_unit); in rapl_init_domains()
586 rd->domain_energy_unit = in rapl_init_domains()
587 rapl_defaults->psys_domain_energy_unit; in rapl_init_domains()
588 if (rd->domain_energy_unit) in rapl_init_domains()
590 rd->domain_energy_unit); in rapl_init_domains()
603 struct rapl_package *rp = rd->rp; in rapl_unit_xlate() local
608 units = rp->power_unit; in rapl_unit_xlate()
613 if (rd->domain_energy_unit) in rapl_unit_xlate()
614 units = rd->domain_energy_unit; in rapl_unit_xlate()
616 units = rp->energy_unit; in rapl_unit_xlate()
619 return rapl_defaults->compute_time_window(rp, value, to_raw); in rapl_unit_xlate()
672 /* non-hardware */
681 * RAPL MSRs are non-architectual and are laid out not consistently across
685 * is pre-assigned based on RAPL unit MSRs read at init time.
686 * 63-------------------------- 31--------------------------- 0
688 * | |<- shift ----------------|
689 * 63-------------------------- 31--------------------------- 0
695 struct rapl_primitive_info *rp = &rpi[prim]; in rapl_read_data_raw() local
699 if (!rp->name || rp->flag & RAPL_PRIMITIVE_DUMMY) in rapl_read_data_raw()
700 return -EINVAL; in rapl_read_data_raw()
702 ra.reg = rd->regs[rp->id]; in rapl_read_data_raw()
704 return -EINVAL; in rapl_read_data_raw()
706 cpu = rd->rp->lead_cpu; in rapl_read_data_raw()
709 if (prim == FW_LOCK && rd->rp->priv->limits[rd->id] == 2) { in rapl_read_data_raw()
710 rp->mask = POWER_HIGH_LOCK; in rapl_read_data_raw()
711 rp->shift = 63; in rapl_read_data_raw()
713 /* non-hardware data are collected by the polling thread */ in rapl_read_data_raw()
714 if (rp->flag & RAPL_PRIMITIVE_DERIVED) { in rapl_read_data_raw()
715 *data = rd->rdd.primitives[prim]; in rapl_read_data_raw()
719 ra.mask = rp->mask; in rapl_read_data_raw()
721 if (rd->rp->priv->read_raw(cpu, &ra)) { in rapl_read_data_raw()
723 return -EIO; in rapl_read_data_raw()
726 value = ra.value >> rp->shift; in rapl_read_data_raw()
729 *data = rapl_unit_xlate(rd, rp->unit, value, 0); in rapl_read_data_raw()
741 struct rapl_primitive_info *rp = &rpi[prim]; in rapl_write_data_raw() local
747 cpu = rd->rp->lead_cpu; in rapl_write_data_raw()
748 bits = rapl_unit_xlate(rd, rp->unit, value, 1); in rapl_write_data_raw()
749 bits <<= rp->shift; in rapl_write_data_raw()
750 bits &= rp->mask; in rapl_write_data_raw()
754 ra.reg = rd->regs[rp->id]; in rapl_write_data_raw()
755 ra.mask = rp->mask; in rapl_write_data_raw()
758 ret = rd->rp->priv->write_raw(cpu, &ra); in rapl_write_data_raw()
774 static int rapl_check_unit_core(struct rapl_package *rp, int cpu) in rapl_check_unit_core() argument
779 ra.reg = rp->priv->reg_unit; in rapl_check_unit_core()
781 if (rp->priv->read_raw(cpu, &ra)) { in rapl_check_unit_core()
783 rp->priv->reg_unit, cpu); in rapl_check_unit_core()
784 return -ENODEV; in rapl_check_unit_core()
788 rp->energy_unit = ENERGY_UNIT_SCALE * 1000000 / (1 << value); in rapl_check_unit_core()
791 rp->power_unit = 1000000 / (1 << value); in rapl_check_unit_core()
794 rp->time_unit = 1000000 / (1 << value); in rapl_check_unit_core()
797 rp->name, rp->energy_unit, rp->time_unit, rp->power_unit); in rapl_check_unit_core()
802 static int rapl_check_unit_atom(struct rapl_package *rp, int cpu) in rapl_check_unit_atom() argument
807 ra.reg = rp->priv->reg_unit; in rapl_check_unit_atom()
809 if (rp->priv->read_raw(cpu, &ra)) { in rapl_check_unit_atom()
811 rp->priv->reg_unit, cpu); in rapl_check_unit_atom()
812 return -ENODEV; in rapl_check_unit_atom()
816 rp->energy_unit = ENERGY_UNIT_SCALE * 1 << value; in rapl_check_unit_atom()
819 rp->power_unit = (1 << value) * 1000; in rapl_check_unit_atom()
822 rp->time_unit = 1000000 / (1 << value); in rapl_check_unit_atom()
825 rp->name, rp->energy_unit, rp->time_unit, rp->power_unit); in rapl_check_unit_atom()
833 struct rapl_package *rp = (struct rapl_package *)info; in power_limit_irq_save_cpu() local
837 if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED)) { in power_limit_irq_save_cpu()
838 rp->power_limit_irq = l & PACKAGE_THERM_INT_PLN_ENABLE; in power_limit_irq_save_cpu()
839 rp->power_limit_irq |= PACKAGE_PLN_INT_SAVED; in power_limit_irq_save_cpu()
855 static void package_power_limit_irq_save(struct rapl_package *rp) in package_power_limit_irq_save() argument
860 smp_call_function_single(rp->lead_cpu, power_limit_irq_save_cpu, rp, 1); in package_power_limit_irq_save()
867 static void package_power_limit_irq_restore(struct rapl_package *rp) in package_power_limit_irq_restore() argument
875 if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED)) in package_power_limit_irq_restore()
880 if (rp->power_limit_irq & PACKAGE_THERM_INT_PLN_ENABLE) in package_power_limit_irq_restore()
892 /* always enable clamp such that p-state can go below OS requested in set_floor_freq_default()
909 if (!rapl_defaults->floor_freq_reg_addr) { in set_floor_freq_atom()
916 rapl_defaults->floor_freq_reg_addr, in set_floor_freq_atom()
924 rapl_defaults->floor_freq_reg_addr, mdata); in set_floor_freq_atom()
927 static u64 rapl_compute_time_window_core(struct rapl_package *rp, u64 value, in rapl_compute_time_window_core() argument
930 u64 f, y; /* fraction and exp. used for time unit */ in rapl_compute_time_window_core() local
933 * Special processing based on 2^Y*(1+F/4), refer in rapl_compute_time_window_core()
938 y = value & 0x1f; in rapl_compute_time_window_core()
939 value = (1 << y) * (4 + f) * rp->time_unit / 4; in rapl_compute_time_window_core()
941 do_div(value, rp->time_unit); in rapl_compute_time_window_core()
942 y = ilog2(value); in rapl_compute_time_window_core()
943 f = div64_u64(4 * (value - (1 << y)), 1 << y); in rapl_compute_time_window_core()
944 value = (y & 0x1f) | ((f & 0x3) << 5); in rapl_compute_time_window_core()
949 static u64 rapl_compute_time_window_atom(struct rapl_package *rp, u64 value, in rapl_compute_time_window_atom() argument
957 return (value) ? value *= rp->time_unit : rp->time_unit; in rapl_compute_time_window_atom()
959 value = div64_u64(value, rp->time_unit); in rapl_compute_time_window_atom()
1078 static void rapl_update_domain_data(struct rapl_package *rp) in rapl_update_domain_data() argument
1083 for (dmn = 0; dmn < rp->nr_domains; dmn++) { in rapl_update_domain_data()
1084 pr_debug("update %s domain %s data\n", rp->name, in rapl_update_domain_data()
1085 rp->domains[dmn].name); in rapl_update_domain_data()
1086 /* exclude non-raw primitives */ in rapl_update_domain_data()
1088 if (!rapl_read_data_raw(&rp->domains[dmn], prim, in rapl_update_domain_data()
1090 rp->domains[dmn].rdd.primitives[prim] = val; in rapl_update_domain_data()
1096 static int rapl_package_register_powercap(struct rapl_package *rp) in rapl_package_register_powercap() argument
1103 rapl_update_domain_data(rp); in rapl_package_register_powercap()
1106 for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) { in rapl_package_register_powercap()
1107 if (rd->id == RAPL_DOMAIN_PACKAGE) { in rapl_package_register_powercap()
1109 pr_debug("register package domain %s\n", rp->name); in rapl_package_register_powercap()
1110 power_zone = powercap_register_zone(&rd->power_zone, in rapl_package_register_powercap()
1111 rp->priv->control_type, rp->name, in rapl_package_register_powercap()
1112 NULL, &zone_ops[rd->id], nr_pl, in rapl_package_register_powercap()
1116 rp->name); in rapl_package_register_powercap()
1120 rp->power_zone = power_zone; in rapl_package_register_powercap()
1127 return -ENODEV; in rapl_package_register_powercap()
1130 for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) { in rapl_package_register_powercap()
1131 struct powercap_zone *parent = rp->power_zone; in rapl_package_register_powercap()
1133 if (rd->id == RAPL_DOMAIN_PACKAGE) in rapl_package_register_powercap()
1135 if (rd->id == RAPL_DOMAIN_PLATFORM) in rapl_package_register_powercap()
1139 power_zone = powercap_register_zone(&rd->power_zone, in rapl_package_register_powercap()
1140 rp->priv->control_type, in rapl_package_register_powercap()
1141 rd->name, parent, in rapl_package_register_powercap()
1142 &zone_ops[rd->id], nr_pl, in rapl_package_register_powercap()
1147 rp->name, rd->name); in rapl_package_register_powercap()
1159 while (--rd >= rp->domains) { in rapl_package_register_powercap()
1160 pr_debug("unregister %s domain %s\n", rp->name, rd->name); in rapl_package_register_powercap()
1161 powercap_unregister_zone(rp->priv->control_type, in rapl_package_register_powercap()
1162 &rd->power_zone); in rapl_package_register_powercap()
1168 static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) in rapl_check_domain() argument
1178 ra.reg = rp->priv->regs[domain][RAPL_DOMAIN_REG_STATUS]; in rapl_check_domain()
1182 return -EINVAL; in rapl_check_domain()
1184 /* make sure domain counters are available and contains non-zero in rapl_check_domain()
1189 if (rp->priv->read_raw(cpu, &ra) || !ra.value) in rapl_check_domain()
1190 return -ENODEV; in rapl_check_domain()
1197 * 1. Locked by BIOS, in this case we still provide read-only access so that
1213 rd->rp->name, rd->name); in rapl_detect_powerlimit()
1214 rd->state |= DOMAIN_STATE_BIOS_LOCKED; in rapl_detect_powerlimit()
1219 int prim = rd->rpl[i].prim_id; in rapl_detect_powerlimit()
1222 rd->rpl[i].name = NULL; in rapl_detect_powerlimit()
1229 static int rapl_detect_domains(struct rapl_package *rp, int cpu) in rapl_detect_domains() argument
1236 if (!rapl_check_domain(cpu, i, rp)) { in rapl_detect_domains()
1237 rp->domain_map |= 1 << i; in rapl_detect_domains()
1241 rp->nr_domains = bitmap_weight(&rp->domain_map, RAPL_DOMAIN_MAX); in rapl_detect_domains()
1242 if (!rp->nr_domains) { in rapl_detect_domains()
1243 pr_debug("no valid rapl domains found in %s\n", rp->name); in rapl_detect_domains()
1244 return -ENODEV; in rapl_detect_domains()
1246 pr_debug("found %d domains on %s\n", rp->nr_domains, rp->name); in rapl_detect_domains()
1248 rp->domains = kcalloc(rp->nr_domains + 1, sizeof(struct rapl_domain), in rapl_detect_domains()
1250 if (!rp->domains) in rapl_detect_domains()
1251 return -ENOMEM; in rapl_detect_domains()
1253 rapl_init_domains(rp); in rapl_detect_domains()
1255 for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) in rapl_detect_domains()
1262 void rapl_remove_package(struct rapl_package *rp) in rapl_remove_package() argument
1266 package_power_limit_irq_restore(rp); in rapl_remove_package()
1268 for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) { in rapl_remove_package()
1276 if (rd->id == RAPL_DOMAIN_PACKAGE) { in rapl_remove_package()
1281 rp->name, rd->name); in rapl_remove_package()
1282 powercap_unregister_zone(rp->priv->control_type, in rapl_remove_package()
1283 &rd->power_zone); in rapl_remove_package()
1286 powercap_unregister_zone(rp->priv->control_type, in rapl_remove_package()
1287 &rd_package->power_zone); in rapl_remove_package()
1288 list_del(&rp->plist); in rapl_remove_package()
1289 kfree(rp); in rapl_remove_package()
1297 struct rapl_package *rp; in rapl_find_package_domain() local
1299 list_for_each_entry(rp, &rapl_packages, plist) { in rapl_find_package_domain()
1300 if (rp->id == id in rapl_find_package_domain()
1301 && rp->priv->control_type == priv->control_type) in rapl_find_package_domain()
1302 return rp; in rapl_find_package_domain()
1313 struct rapl_package *rp; in rapl_add_package() local
1317 return ERR_PTR(-ENODEV); in rapl_add_package()
1319 rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL); in rapl_add_package()
1320 if (!rp) in rapl_add_package()
1321 return ERR_PTR(-ENOMEM); in rapl_add_package()
1324 rp->id = id; in rapl_add_package()
1325 rp->lead_cpu = cpu; in rapl_add_package()
1326 rp->priv = priv; in rapl_add_package()
1329 snprintf(rp->name, PACKAGE_DOMAIN_NAME_LENGTH, in rapl_add_package()
1330 "package-%d-die-%d", in rapl_add_package()
1333 snprintf(rp->name, PACKAGE_DOMAIN_NAME_LENGTH, "package-%d", in rapl_add_package()
1337 if (rapl_detect_domains(rp, cpu) || rapl_defaults->check_unit(rp, cpu)) { in rapl_add_package()
1338 ret = -ENODEV; in rapl_add_package()
1341 ret = rapl_package_register_powercap(rp); in rapl_add_package()
1343 INIT_LIST_HEAD(&rp->plist); in rapl_add_package()
1344 list_add(&rp->plist, &rapl_packages); in rapl_add_package()
1345 return rp; in rapl_add_package()
1349 kfree(rp->domains); in rapl_add_package()
1350 kfree(rp); in rapl_add_package()
1357 struct rapl_package *rp; in power_limit_state_save() local
1362 list_for_each_entry(rp, &rapl_packages, plist) { in power_limit_state_save()
1363 if (!rp->power_zone) in power_limit_state_save()
1365 rd = power_zone_to_rapl_domain(rp->power_zone); in power_limit_state_save()
1368 switch (rd->rpl[i].prim_id) { in power_limit_state_save()
1372 &rd->rpl[i].last_power_limit); in power_limit_state_save()
1374 rd->rpl[i].last_power_limit = 0; in power_limit_state_save()
1379 &rd->rpl[i].last_power_limit); in power_limit_state_save()
1381 rd->rpl[i].last_power_limit = 0; in power_limit_state_save()
1386 &rd->rpl[i].last_power_limit); in power_limit_state_save()
1388 rd->rpl[i].last_power_limit = 0; in power_limit_state_save()
1398 struct rapl_package *rp; in power_limit_state_restore() local
1403 list_for_each_entry(rp, &rapl_packages, plist) { in power_limit_state_restore()
1404 if (!rp->power_zone) in power_limit_state_restore()
1406 rd = power_zone_to_rapl_domain(rp->power_zone); in power_limit_state_restore()
1409 switch (rd->rpl[i].prim_id) { in power_limit_state_restore()
1411 if (rd->rpl[i].last_power_limit) in power_limit_state_restore()
1413 rd->rpl[i].last_power_limit); in power_limit_state_restore()
1416 if (rd->rpl[i].last_power_limit) in power_limit_state_restore()
1418 rd->rpl[i].last_power_limit); in power_limit_state_restore()
1421 if (rd->rpl[i].last_power_limit) in power_limit_state_restore()
1423 rd->rpl[i].last_power_limit); in power_limit_state_restore()
1461 return -ENODEV; in rapl_init()
1464 rapl_defaults = (struct rapl_defaults *)id->driver_data; in rapl_init()
1472 ret = -ENOMEM; in rapl_init()