diff options
30 files changed, 281 insertions, 164 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 9f18a1cb7d4b..8e4daa96fb04 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4585,6 +4585,14 @@ L: linux-arm-kernel@lists.infradead.org S: Supported F: drivers/cpuidle/cpuidle-psci.c +CPUIDLE DRIVER - ARM PSCI PM DOMAIN +M: Ulf Hansson <ulf.hansson@linaro.org> +L: linux-pm@vger.kernel.org +L: linux-arm-kernel@lists.infradead.org +S: Supported +F: drivers/cpuidle/cpuidle-psci.h +F: drivers/cpuidle/cpuidle-psci-domain.c + CRAMFS FILESYSTEM M: Nicolas Pitre <nico@fluxnic.net> S: Maintained @@ -5398,11 +5406,11 @@ F: include/linux/debugfs.h F: include/linux/kobj* F: lib/kobj* -DRIVERS FOR ADAPTIVE VOLTAGE SCALING (AVS) +DRIVERS FOR OMAP ADAPTIVE VOLTAGE SCALING (AVS) M: Nishanth Menon <nm@ti.com> L: linux-pm@vger.kernel.org S: Maintained -F: drivers/power/avs/ +F: drivers/soc/ti/smartreflex.c F: include/linux/power/smartreflex.h DRM DRIVER FOR ALLWINNER DE2 AND DE3 ENGINE @@ -14459,7 +14467,7 @@ L: linux-pm@vger.kernel.org L: linux-arm-msm@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/power/avs/qcom,cpr.txt -F: drivers/power/avs/qcom-cpr.c +F: drivers/soc/qcom/cpr.c QUALCOMM CPUFREQ DRIVER MSM8996/APQ8096 M: Ilia Lin <ilia.lin@kernel.org> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 93fd7fc537cf..272670ef1e92 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -23,7 +23,7 @@ config OMAP_DEBUG_LEDS config POWER_AVS_OMAP bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2" - depends on POWER_AVS && (ARCH_OMAP3 || ARCH_OMAP4) && PM + depends on (ARCH_OMAP3 || ARCH_OMAP4) && PM select POWER_SUPPLY help Say Y to enable AVS(Adaptive Voltage Scaling) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 05bb4d4401b2..743268996336 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -415,26 +415,45 @@ static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed) s64 elapsed_ns; int ret; + /* Notify consumers that we are about to power on. */ + ret = raw_notifier_call_chain_robust(&genpd->power_notifiers, + GENPD_NOTIFY_PRE_ON, + GENPD_NOTIFY_OFF, NULL); + ret = notifier_to_errno(ret); + if (ret) + return ret; + if (!genpd->power_on) - return 0; + goto out; - if (!timed) - return genpd->power_on(genpd); + if (!timed) { + ret = genpd->power_on(genpd); + if (ret) + goto err; + + goto out; + } time_start = ktime_get(); ret = genpd->power_on(genpd); if (ret) - return ret; + goto err; elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)); if (elapsed_ns <= genpd->states[state_idx].power_on_latency_ns) - return ret; + goto out; genpd->states[state_idx].power_on_latency_ns = elapsed_ns; genpd->max_off_time_changed = true; pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", genpd->name, "on", elapsed_ns); +out: + raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_ON, NULL); + return 0; +err: + raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_OFF, + NULL); return ret; } @@ -445,27 +464,46 @@ static int _genpd_power_off(struct generic_pm_domain *genpd, bool timed) s64 elapsed_ns; int ret; + /* Notify consumers that we are about to power off. */ + ret = raw_notifier_call_chain_robust(&genpd->power_notifiers, + GENPD_NOTIFY_PRE_OFF, + GENPD_NOTIFY_ON, NULL); + ret = notifier_to_errno(ret); + if (ret) + return ret; + if (!genpd->power_off) - return 0; + goto out; + + if (!timed) { + ret = genpd->power_off(genpd); + if (ret) + goto busy; - if (!timed) - return genpd->power_off(genpd); + goto out; + } time_start = ktime_get(); ret = genpd->power_off(genpd); if (ret) - return ret; + goto busy; elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)); if (elapsed_ns <= genpd->states[state_idx].power_off_latency_ns) - return 0; + goto out; genpd->states[state_idx].power_off_latency_ns = elapsed_ns; genpd->max_off_time_changed = true; pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", genpd->name, "off", elapsed_ns); +out: + raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_OFF, + NULL); return 0; +busy: + raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_ON, NULL); + return ret; } /** @@ -550,11 +588,14 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on, return -EBUSY; ret = _genpd_power_off(genpd, true); - if (ret) + if (ret) { + genpd->states[genpd->state_idx].rejected++; return ret; + } genpd->status = GENPD_STATE_OFF; genpd_update_accounting(genpd); + genpd->states[genpd->state_idx].usage++; list_for_each_entry(link, &genpd->child_links, child_node) { genpd_sd_counter_dec(link->parent); @@ -1270,13 +1311,14 @@ static int genpd_restore_noirq(struct device *dev) * first time for the given domain in the present cycle. */ genpd_lock(genpd); - if (genpd->suspended_count++ == 0) + if (genpd->suspended_count++ == 0) { /* * The boot kernel might put the domain into arbitrary state, * so make it appear as powered off to genpd_sync_power_on(), * so that it tries to power it on in case it was really off. */ genpd->status = GENPD_STATE_OFF; + } genpd_sync_power_on(genpd, true, 0); genpd_unlock(genpd); @@ -1592,6 +1634,101 @@ int pm_genpd_remove_device(struct device *dev) } EXPORT_SYMBOL_GPL(pm_genpd_remove_device); +/** + * dev_pm_genpd_add_notifier - Add a genpd power on/off notifier for @dev + * + * @dev: Device that should be associated with the notifier + * @nb: The notifier block to register + * + * Users may call this function to add a genpd power on/off notifier for an + * attached @dev. Only one notifier per device is allowed. The notifier is + * sent when genpd is powering on/off the PM domain. + * + * It is assumed that the user guarantee that the genpd wouldn't be detached + * while this routine is getting called. + * + * Returns 0 on success and negative error values on failures. + */ +int dev_pm_genpd_add_notifier(struct device *dev, struct notifier_block *nb) +{ + struct generic_pm_domain *genpd; + struct generic_pm_domain_data *gpd_data; + int ret; + + genpd = dev_to_genpd_safe(dev); + if (!genpd) + return -ENODEV; + + if (WARN_ON(!dev->power.subsys_data || + !dev->power.subsys_data->domain_data)) + return -EINVAL; + + gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); + if (gpd_data->power_nb) + return -EEXIST; + + genpd_lock(genpd); + ret = raw_notifier_chain_register(&genpd->power_notifiers, nb); + genpd_unlock(genpd); + + if (ret) { + dev_warn(dev, "failed to add notifier for PM domain %s\n", + genpd->name); + return ret; + } + + gpd_data->power_nb = nb; + return 0; +} +EXPORT_SYMBOL_GPL(dev_pm_genpd_add_notifier); + +/** + * dev_pm_genpd_remove_notifier - Remove a genpd power on/off notifier for @dev + * + * @dev: Device that is associated with the notifier + * + * Users may call this function to remove a genpd power on/off notifier for an + * attached @dev. + * + * It is assumed that the user guarantee that the genpd wouldn't be detached + * while this routine is getting called. + * + * Returns 0 on success and negative error values on failures. + */ +int dev_pm_genpd_remove_notifier(struct device *dev) +{ + struct generic_pm_domain *genpd; + struct generic_pm_domain_data *gpd_data; + int ret; + + genpd = dev_to_genpd_safe(dev); + if (!genpd) + return -ENODEV; + + if (WARN_ON(!dev->power.subsys_data || + !dev->power.subsys_data->domain_data)) + return -EINVAL; + + gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); + if (!gpd_data->power_nb) + return -ENODEV; + + genpd_lock(genpd); + ret = raw_notifier_chain_unregister(&genpd->power_notifiers, + gpd_data->power_nb); + genpd_unlock(genpd); + + if (ret) { + dev_warn(dev, "failed to remove notifier for PM domain %s\n", + genpd->name); + return ret; + } + + gpd_data->power_nb = NULL; + return 0; +} +EXPORT_SYMBOL_GPL(dev_pm_genpd_remove_notifier); + static int genpd_add_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *subdomain) { @@ -1762,6 +1899,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd, INIT_LIST_HEAD(&genpd->parent_links); INIT_LIST_HEAD(&genpd->child_links); INIT_LIST_HEAD(&genpd->dev_list); + RAW_INIT_NOTIFIER_HEAD(&genpd->power_notifiers); genpd_lock_init(genpd); genpd->gov = gov; INIT_WORK(&genpd->power_off_work, genpd_power_off_work_fn); @@ -2923,7 +3061,7 @@ static int idle_states_show(struct seq_file *s, void *data) if (ret) return -ERESTARTSYS; - seq_puts(s, "State Time Spent(ms)\n"); + seq_puts(s, "State Time Spent(ms) Usage Rejected\n"); for (i = 0; i < genpd->state_count; i++) { ktime_t delta = 0; @@ -2935,7 +3073,8 @@ static int idle_states_show(struct seq_file *s, void *data) msecs = ktime_to_ms( ktime_add(genpd->states[i].idle_time, delta)); - seq_printf(s, "S%-13i %lld\n", i, msecs); + seq_printf(s, "S%-13i %-14lld %-14llu %llu\n", i, msecs, + genpd->states[i].usage, genpd->states[i].rejected); } genpd_unlock(genpd); diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 205a06752ca9..c7ac49042cee 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -363,7 +363,6 @@ static pm_callback_t pm_op(const struct dev_pm_ops *ops, pm_message_t state) case PM_EVENT_THAW: case PM_EVENT_RECOVER: return ops->thaw; - break; case PM_EVENT_RESTORE: return ops->restore; #endif /* CONFIG_HIBERNATE_CALLBACKS */ diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index e4ff681faaaa..1e4fbb002a31 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -691,7 +691,8 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) cpumask_copy(policy->cpus, topology_core_cpumask(cpu)); } - if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) { + if (check_amd_hwpstate_cpu(cpu) && boot_cpu_data.x86 < 0x19 && + !acpi_pstate_strict) { cpumask_clear(policy->cpus); cpumask_set_cpu(cpu, policy->cpus); cpumask_copy(data->freqdomain_cpus, diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1877f5e2e5b0..f4b60663efe6 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1454,14 +1454,13 @@ static int cpufreq_online(unsigned int cpu) */ if ((cpufreq_driver->flags & CPUFREQ_NEED_INITIAL_FREQ_CHECK) && has_target()) { + unsigned int old_freq = policy->cur; + /* Are we running at unknown frequency ? */ - ret = cpufreq_frequency_table_get_index(policy, policy->cur); + ret = cpufreq_frequency_table_get_index(policy, old_freq); if (ret == -EINVAL) { - /* Warn user and fix it */ - pr_warn("%s: CPU%d: Running at unlisted freq: %u KHz\n", - __func__, policy->cpu, policy->cur); - ret = __cpufreq_driver_target(policy, policy->cur - 1, - CPUFREQ_RELATION_L); + ret = __cpufreq_driver_target(policy, old_freq - 1, + CPUFREQ_RELATION_L); /* * Reaching here after boot in a few seconds may not @@ -1469,8 +1468,8 @@ static int cpufreq_online(unsigned int cpu) * frequency for longer duration. Hence, a BUG_ON(). */ BUG_ON(ret); - pr_warn("%s: CPU%d: Unlisted initial frequency changed to: %u KHz\n", - __func__, policy->cpu, policy->cur); + pr_info("%s: CPU%d: Running at unlisted initial frequency: %u KHz, changing to: %u KHz\n", + __func__, policy->cpu, old_freq, policy->cur); } } diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 9a515c460a00..3c1455518738 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1420,6 +1420,24 @@ static void __init intel_pstate_sysfs_expose_params(void) } } +static void __init intel_pstate_sysfs_remove(void) +{ + if (!intel_pstate_kobject) + return; + + sysfs_remove_group(intel_pstate_kobject, &intel_pstate_attr_group); + + if (!per_cpu_limits) { + sysfs_remove_file(intel_pstate_kobject, &max_perf_pct.attr); + sysfs_remove_file(intel_pstate_kobject, &min_perf_pct.attr); + + if (x86_match_cpu(intel_pstate_cpu_ee_disable_ids)) + sysfs_remove_file(intel_pstate_kobject, &energy_efficiency.attr); + } + + kobject_put(intel_pstate_kobject); +} + static void intel_pstate_sysfs_expose_hwp_dynamic_boost(void) { int rc; @@ -3063,8 +3081,10 @@ hwp_cpu_matched: mutex_lock(&intel_pstate_driver_lock); rc = intel_pstate_register_driver(default_driver); mutex_unlock(&intel_pstate_driver_lock); - if (rc) + if (rc) { + intel_pstate_sysfs_remove(); return rc; + } if (hwp_active) { const struct x86_cpu_id *id; diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 9a810e4a7946..56f5b8077cba 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -8,7 +8,7 @@ */ /* - * intel_idle is a cpuidle driver that loads on specific Intel processors + * intel_idle is a cpuidle driver that loads on all Intel CPUs with MWAIT * in lieu of the legacy ACPI processor_idle driver. The intent is to * make Linux more efficient on these processors, as intel_idle knows * more than ACPI, as well as make Linux more immune to ACPI BIOS bugs. @@ -20,7 +20,11 @@ * All CPUs have same idle states as boot CPU * * Chipset BM_STS (bus master status) bit is a NOP - * for preventing entry into deep C-stats + * for preventing entry into deep C-states + * + * CPU will flush caches as needed when entering a C-state via MWAIT + * (in contrast to entering ACPI C3, in which case the WBINVD + * instruction needs to be executed to flush the caches) */ /* @@ -1212,14 +1216,13 @@ static bool __init intel_idle_acpi_cst_extract(void) if (!intel_idle_cst_usable()) continue; - if (!acpi_processor_claim_cst_control()) { - acpi_state_table.count = 0; - return false; - } + if (!acpi_processor_claim_cst_control()) + break; return true; } + acpi_state_table.count = 0; pr_debug("ACPI _CST not found or not usable\n"); return false; } diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index ff0350ca3b74..696bf77a7042 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -1,4 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only -source "drivers/power/avs/Kconfig" source "drivers/power/reset/Kconfig" source "drivers/power/supply/Kconfig" diff --git a/drivers/power/Makefile b/drivers/power/Makefile index b7c2e372186b..effbf0377f32 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -1,4 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_POWER_AVS) += avs/ obj-$(CONFIG_POWER_RESET) += reset/ obj-$(CONFIG_POWER_SUPPLY) += supply/ diff --git a/drivers/power/avs/Kconfig b/drivers/power/avs/Kconfig deleted file mode 100644 index cdb4237bfd02..000000000000 --- a/drivers/power/avs/Kconfig +++ /dev/null @@ -1,37 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -menuconfig POWER_AVS - bool "Adaptive Voltage Scaling class support" - help - AVS is a power management technique which finely controls the - operating voltage of a device in order to optimize (i.e. reduce) - its power consumption. - At a given operating point the voltage is adapted depending on - static factors (chip manufacturing process) and dynamic factors - (temperature depending performance). - AVS is also called SmartReflex on OMAP devices. - - Say Y here to enable Adaptive Voltage Scaling class support. - -config QCOM_CPR - tristate "QCOM Core Power Reduction (CPR) support" - depends on POWER_AVS && HAS_IOMEM - select PM_OPP - select REGMAP - help - Say Y here to enable support for the CPR hardware found on Qualcomm - SoCs like QCS404. - - This driver populates CPU OPPs tables and makes adjustments to the - tables based on feedback from the CPR hardware. If you want to do - CPUfrequency scaling say Y here. - - To compile this driver as a module, choose M here: the module will - be called qcom-cpr - -config ROCKCHIP_IODOMAIN - tristate "Rockchip IO domain support" - depends on POWER_AVS && ARCH_ROCKCHIP && OF - help - Say y here to enable support io domains on Rockchip SoCs. It is - necessary for the io domain setting of the SoC to match the - voltage supplied by the regulators. diff --git a/drivers/power/avs/Makefile b/drivers/power/avs/Makefile deleted file mode 100644 index 9007d05853e2..000000000000 --- a/drivers/power/avs/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_POWER_AVS_OMAP) += smartreflex.o -obj-$(CONFIG_QCOM_CPR) += qcom-cpr.o -obj-$(CONFIG_ROCKCHIP_IODOMAIN) += rockchip-io-domain.o diff --git a/drivers/powercap/Kconfig b/drivers/powercap/Kconfig index ebc4d4578339..bc228725346b 100644 --- a/drivers/powercap/Kconfig +++ b/drivers/powercap/Kconfig @@ -30,7 +30,7 @@ config INTEL_RAPL In RAPL, the platform level settings are divided into domains for fine grained control. These domains include processor package, DRAM - controller, CPU core (Power Plance 0), graphics uncore (Power Plane + controller, CPU core (Power Plane 0), graphics uncore (Power Plane 1), etc. config IDLE_INJECT diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c index 983d75bd5bd1..0b2830efc574 100644 --- a/drivers/powercap/intel_rapl_common.c +++ b/drivers/powercap/intel_rapl_common.c @@ -544,7 +544,14 @@ static void rapl_init_domains(struct rapl_package *rp) continue; rd->rp = rp; - rd->name = rapl_domain_names[i]; + + if (i == RAPL_DOMAIN_PLATFORM && rp->id > 0) { + snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "psys-%d", + cpu_data(rp->lead_cpu).phys_proc_id); + } else + snprintf(rd->name, RAPL_DOMAIN_NAME_LENGTH, "%s", + rapl_domain_names[i]); + rd->id = i; rd->rpl[0].prim_id = PL1_ENABLE; rd->rpl[0].name = pl1_name; @@ -1112,13 +1119,17 @@ static int rapl_package_register_powercap(struct rapl_package *rp) } /* now register domains as children of the socket/package */ for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) { + struct powercap_zone *parent = rp->power_zone; + if (rd->id == RAPL_DOMAIN_PACKAGE) continue; + if (rd->id == RAPL_DOMAIN_PLATFORM) + parent = NULL; /* number of power limits per domain varies */ nr_pl = find_nr_power_limit(rd); power_zone = powercap_register_zone(&rd->power_zone, rp->priv->control_type, - rd->name, rp->power_zone, + rd->name, parent, &zone_ops[rd->id], nr_pl, &constraint_ops); @@ -1145,67 +1156,6 @@ err_cleanup: return ret; } -int rapl_add_platform_domain(struct rapl_if_priv *priv) -{ - struct rapl_domain *rd; - struct powercap_zone *power_zone; - struct reg_action ra; - int ret; - - ra.reg = priv->regs[RAPL_DOMAIN_PLATFORM][RAPL_DOMAIN_REG_STATUS]; - ra.mask = ~0; - ret = priv->read_raw(0, &ra); - if (ret || !ra.value) - return -ENODEV; - - ra.reg = priv->regs[RAPL_DOMAIN_PLATFORM][RAPL_DOMAIN_REG_LIMIT]; - ra.mask = ~0; - ret = priv->read_raw(0, &ra); - if (ret || !ra.value) - return -ENODEV; - - rd = kzalloc(sizeof(*rd), GFP_KERNEL); - if (!rd) - return -ENOMEM; - - rd->name = rapl_domain_names[RAPL_DOMAIN_PLATFORM]; - rd->id = RAPL_DOMAIN_PLATFORM; - rd->regs[RAPL_DOMAIN_REG_LIMIT] = - priv->regs[RAPL_DOMAIN_PLATFORM][RAPL_DOMAIN_REG_LIMIT]; - rd->regs[RAPL_DOMAIN_REG_STATUS] = - priv->regs[RAPL_DOMAIN_PLATFORM][RAPL_DOMAIN_REG_STATUS]; - rd->rpl[0].prim_id = PL1_ENABLE; - rd->rpl[0].name = pl1_name; - rd->rpl[1].prim_id = PL2_ENABLE; - rd->rpl[1].name = pl2_name; - rd->rp = rapl_find_package_domain(0, priv); - - power_zone = powercap_register_zone(&rd->power_zone, priv->control_type, - "psys", NULL, - &zone_ops[RAPL_DOMAIN_PLATFORM], - 2, &constraint_ops); - - if (IS_ERR(power_zone)) { - kfree(rd); - return PTR_ERR(power_zone); - } - - priv->platform_rapl_domain = rd; - - return 0; -} -EXPORT_SYMBOL_GPL(rapl_add_platform_domain); - -void rapl_remove_platform_domain(struct rapl_if_priv *priv) -{ - if (priv->platform_rapl_domain) { - powercap_unregister_zone(priv->control_type, - &priv->platform_rapl_domain->power_zone); - kfree(priv->platform_rapl_domain); - } -} -EXPORT_SYMBOL_GPL(rapl_remove_platform_domain); - static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) { struct reg_action ra; @@ -1215,11 +1165,9 @@ static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) case RAPL_DOMAIN_PP0: case RAPL_DOMAIN_PP1: case RAPL_DOMAIN_DRAM: + case RAPL_DOMAIN_PLATFORM: ra.reg = rp->priv->regs[domain][RAPL_DOMAIN_REG_STATUS]; break; - case RAPL_DOMAIN_PLATFORM: - /* PSYS(PLATFORM) is not a CPU domain, so avoid printng error */ - return -EINVAL; default: pr_err("invalid domain id %d\n", domain); return -EINVAL; @@ -1228,7 +1176,7 @@ static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) * values, otherwise skip it. */ - ra.mask = ~0; + ra.mask = ENERGY_STATUS_MASK; if (rp->priv->read_raw(cpu, &ra) || !ra.value) return -ENODEV; diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rapl_msr.c index d2a2627507a9..1646808d354c 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -44,6 +44,7 @@ static struct rapl_if_priv rapl_msr_priv = { .regs[RAPL_DOMAIN_PLATFORM] = { MSR_PLATFORM_POWER_LIMIT, MSR_PLATFORM_ENERGY_STATUS, 0, 0, 0}, .limits[RAPL_DOMAIN_PACKAGE] = 2, + .limits[RAPL_DOMAIN_PLATFORM] = 2, }; /* Handles CPU hotplug on multi-socket systems. @@ -157,9 +158,6 @@ static int rapl_msr_probe(struct platform_device *pdev) goto out; rapl_msr_priv.pcap_rapl_online = ret; - /* Don't bail out if PSys is not supported */ - rapl_add_platform_domain(&rapl_msr_priv); - return 0; out: @@ -171,7 +169,6 @@ out: static int rapl_msr_remove(struct platform_device *pdev) { cpuhp_remove_state(rapl_msr_priv.pcap_rapl_online); - rapl_remove_platform_domain(&rapl_msr_priv); powercap_unregister_control_type(rapl_msr_priv.control_type); return 0; } diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index 3dc3e3d61ea3..6a3b69b43ad5 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -26,6 +26,22 @@ config QCOM_COMMAND_DB resource on a RPM-hardened platform must use this database to get SoC specific identifier and information for the shared resources. +config QCOM_CPR + tristate "QCOM Core Power Reduction (CPR) support" + depends on ARCH_QCOM && HAS_IOMEM + select PM_OPP + select REGMAP + help + Say Y here to enable support for the CPR hardware found on Qualcomm + SoCs like QCS404. + + This driver populates CPU OPPs tables and makes adjustments to the + tables based on feedback from the CPR hardware. If you want to do + CPUfrequency scaling say Y here. + + To compile this driver as a module, choose M here: the module will + be called qcom-cpr + config QCOM_GENI_SE tristate "QCOM GENI Serial Engine Driver" depends on ARCH_QCOM || COMPILE_TEST diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile index 93392d9dc7f7..ad675a6593d0 100644 --- a/drivers/soc/qcom/Makefile +++ b/drivers/soc/qcom/Makefile @@ -3,6 +3,7 @@ CFLAGS_rpmh-rsc.o := -I$(src) obj-$(CONFIG_QCOM_AOSS_QMP) += qcom_aoss.o obj-$(CONFIG_QCOM_GENI_SE) += qcom-geni-se.o obj-$(CONFIG_QCOM_COMMAND_DB) += cmd-db.o +obj-$(CONFIG_QCOM_CPR) += cpr.o obj-$(CONFIG_QCOM_GSBI) += qcom_gsbi.o obj-$(CONFIG_QCOM_MDT_LOADER) += mdt_loader.o obj-$(CONFIG_QCOM_OCMEM) += ocmem.o diff --git a/drivers/power/avs/qcom-cpr.c b/drivers/soc/qcom/cpr.c index b24cc77d1889..b24cc77d1889 100644 --- a/drivers/power/avs/qcom-cpr.c +++ b/drivers/soc/qcom/cpr.c diff --git a/drivers/soc/rockchip/Kconfig b/drivers/soc/rockchip/Kconfig index b71b73bf5fc5..2c13bf4dd5db 100644 --- a/drivers/soc/rockchip/Kconfig +++ b/drivers/soc/rockchip/Kconfig @@ -14,6 +14,14 @@ config ROCKCHIP_GRF In a lot of cases there also need to be default settings initialized to make some of them conform to expectations of the kernel. +config ROCKCHIP_IODOMAIN + tristate "Rockchip IO domain support" + depends on OF + help + Say y here to enable support io domains on Rockchip SoCs. It is + necessary for the io domain setting of the SoC to match the + voltage supplied by the regulators. + config ROCKCHIP_PM_DOMAINS bool "Rockchip generic power domain" depends on PM diff --git a/drivers/soc/rockchip/Makefile b/drivers/soc/rockchip/Makefile index afca0a4c4b72..875032f7344e 100644 --- a/drivers/soc/rockchip/Makefile +++ b/drivers/soc/rockchip/Makefile @@ -3,4 +3,5 @@ # Rockchip Soc drivers # obj-$(CONFIG_ROCKCHIP_GRF) += grf.o +obj-$(CONFIG_ROCKCHIP_IODOMAIN) += io-domain.o obj-$(CONFIG_ROCKCHIP_PM_DOMAINS) += pm_domains.o diff --git a/drivers/power/avs/rockchip-io-domain.c b/drivers/soc/rockchip/io-domain.c index eece97f97ef8..eece97f97ef8 100644 --- a/drivers/power/avs/rockchip-io-domain.c +++ b/drivers/soc/rockchip/io-domain.c diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile index 1110e5c98685..5463431ec96c 100644 --- a/drivers/soc/ti/Makefile +++ b/drivers/soc/ti/Makefile @@ -12,3 +12,4 @@ obj-$(CONFIG_TI_SCI_PM_DOMAINS) += ti_sci_pm_domains.o obj-$(CONFIG_TI_SCI_INTA_MSI_DOMAIN) += ti_sci_inta_msi.o obj-$(CONFIG_TI_K3_RINGACC) += k3-ringacc.o obj-$(CONFIG_TI_K3_SOCINFO) += k3-socinfo.o +obj-$(CONFIG_POWER_AVS_OMAP) += smartreflex.o diff --git a/drivers/power/avs/smartreflex.c b/drivers/soc/ti/smartreflex.c index 5376f3d22f31..5376f3d22f31 100644 --- a/drivers/power/avs/smartreflex.c +++ b/drivers/soc/ti/smartreflex.c diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index ed0da0e58e8b..bd605b5585cf 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -271,13 +271,8 @@ struct cpuidle_governor { void (*reflect) (struct cpuidle_device *dev, int index); }; -#ifdef CONFIG_CPU_IDLE extern int cpuidle_register_governor(struct cpuidle_governor *gov); extern s64 cpuidle_governor_latency_req(unsigned int cpu); -#else -static inline int cpuidle_register_governor(struct cpuidle_governor *gov) -{return 0;} -#endif #define __CPU_PM_CPU_IDLE_ENTER(low_level_idle_enter, \ idx, \ diff --git a/include/linux/intel_rapl.h b/include/linux/intel_rapl.h index 3582176a1eca..50b8398ffd21 100644 --- a/include/linux/intel_rapl.h +++ b/include/linux/intel_rapl.h @@ -79,8 +79,10 @@ struct rapl_power_limit { struct rapl_package; +#define RAPL_DOMAIN_NAME_LENGTH 16 + struct rapl_domain { - const char *name; + char name[RAPL_DOMAIN_NAME_LENGTH]; enum rapl_domain_type id; u64 regs[RAPL_DOMAIN_REG_MAX]; struct powercap_zone power_zone; @@ -152,7 +154,4 @@ struct rapl_package *rapl_find_package_domain(int cpu, struct rapl_if_priv *priv struct rapl_package *rapl_add_package(int cpu, struct rapl_if_priv *priv); void rapl_remove_package(struct rapl_package *rp); -int rapl_add_platform_domain(struct rapl_if_priv *priv); -void rapl_remove_platform_domain(struct rapl_if_priv *priv); - #endif /* __INTEL_RAPL_H__ */ diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 66f3c5d64d81..1ad0ec481416 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -68,6 +68,13 @@ enum gpd_status { GENPD_STATE_OFF, /* PM domain is off */ }; +enum genpd_notication { + GENPD_NOTIFY_PRE_OFF = 0, + GENPD_NOTIFY_OFF, + GENPD_NOTIFY_PRE_ON, + GENPD_NOTIFY_ON, +}; + struct dev_power_governor { bool (*power_down_ok)(struct dev_pm_domain *domain); bool (*suspend_ok)(struct device *dev); @@ -82,6 +89,8 @@ struct genpd_power_state { s64 power_off_latency_ns; s64 power_on_latency_ns; s64 residency_ns; + u64 usage; + u64 rejected; struct fwnode_handle *fwnode; ktime_t idle_time; void *data; @@ -112,6 +121,7 @@ struct generic_pm_domain { cpumask_var_t cpus; /* A cpumask of the attached CPUs */ int (*power_off)(struct generic_pm_domain *domain); int (*power_on)(struct generic_pm_domain *domain); + struct raw_notifier_head power_notifiers; /* Power on/off notifiers */ struct opp_table *opp_table; /* OPP table of the genpd */ unsigned int (*opp_to_performance_state)(struct generic_pm_domain *genpd, struct dev_pm_opp *opp); @@ -178,6 +188,7 @@ struct generic_pm_domain_data { struct pm_domain_data base; struct gpd_timing_data td; struct notifier_block nb; + struct notifier_block *power_nb; int cpu; unsigned int performance_state; void *data; @@ -204,6 +215,8 @@ int pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off); int pm_genpd_remove(struct generic_pm_domain *genpd); int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state); +int dev_pm_genpd_add_notifier(struct device *dev, struct notifier_block *nb); +int dev_pm_genpd_remove_notifier(struct device *dev); extern struct dev_power_governor simple_qos_governor; extern struct dev_power_governor pm_domain_always_on_gov; @@ -251,6 +264,17 @@ static inline int dev_pm_genpd_set_performance_state(struct device *dev, return -ENOTSUPP; } +static inline int dev_pm_genpd_add_notifier(struct device *dev, + struct notifier_block *nb) +{ + return -ENOTSUPP; +} + +static inline int dev_pm_genpd_remove_notifier(struct device *dev) +{ + return -ENOTSUPP; +} + #define simple_qos_governor (*(struct dev_power_governor *)(NULL)) #define pm_domain_always_on_gov (*(struct dev_power_governor *)(NULL)) #endif diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 6245caa18034..18b02dcc168e 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -479,7 +479,7 @@ static inline int pm_runtime_set_active(struct device *dev) } /** - * pm_runtime_set_suspended - Set runtime PM status to "active". + * pm_runtime_set_suspended - Set runtime PM status to "suspended". * @dev: Target device. * * Set the runtime PM status of @dev to %RPM_SUSPENDED and ensure that diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c index 5ae7b4e6e8d6..e254745a82cb 100644 --- a/kernel/sched/cpufreq_schedutil.c +++ b/kernel/sched/cpufreq_schedutil.c @@ -441,6 +441,7 @@ static void sugov_update_single(struct update_util_data *hook, u64 time, unsigned long util, max; unsigned int next_f; bool busy; + unsigned int cached_freq = sg_policy->cached_raw_freq; sugov_iowait_boost(sg_cpu, time, flags); sg_cpu->last_update = time; @@ -464,8 +465,8 @@ static void sugov_update_single(struct update_util_data *hook, u64 time, if (busy && next_f < sg_policy->next_freq) { next_f = sg_policy->next_freq; - /* Reset cached freq as next_freq has changed */ - sg_policy->cached_raw_freq = 0; + /* Restore cached freq as next_freq has changed */ + sg_policy->cached_raw_freq = cached_freq; } /* diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile index c8622497ef23..c7bcddbd486d 100644 --- a/tools/power/cpupower/Makefile +++ b/tools/power/cpupower/Makefile @@ -51,7 +51,7 @@ DESTDIR ?= # Package-related definitions. Distributions can modify the version # and _should_ modify the PACKAGE_BUGREPORT definition -VERSION= $(shell ./utils/version-gen.sh) +VERSION:= $(shell ./utils/version-gen.sh) LIB_MAJ= 0.0.1 LIB_MIN= 0 diff --git a/tools/power/cpupower/debug/i386/intel_gsic.c b/tools/power/cpupower/debug/i386/intel_gsic.c index e5e926f46d6b..befd837f07f8 100644 --- a/tools/power/cpupower/debug/i386/intel_gsic.c +++ b/tools/power/cpupower/debug/i386/intel_gsic.c @@ -71,7 +71,7 @@ int main (void) printf("\tsmi_cmd=0x?? smi_port=0x?? smi_sig=1\n"); printf("\nUnfortunately, you have to know what exactly are " "smi_cmd and smi_port, and this\nis system " - "dependant.\n"); + "dependent.\n"); } return 1; } |