diff options
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/acpi-cpufreq.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/armada-37xx-cpufreq.c | 6 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq-dt-platdev.c | 2 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 6 | ||||
| -rw-r--r-- | drivers/cpufreq/cpufreq_ondemand.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 43 | ||||
| -rw-r--r-- | drivers/cpufreq/powernow-k8.c | 6 | ||||
| -rw-r--r-- | drivers/cpufreq/powernv-cpufreq.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/scmi-cpufreq.c | 2 |
9 files changed, 61 insertions, 16 deletions
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 7e7450453714..b49612895c78 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -163,9 +163,9 @@ static ssize_t store_cpb(struct cpufreq_policy *policy, const char *buf, if (ret || val > 1) return -EINVAL; - get_online_cpus(); + cpus_read_lock(); set_boost(policy, val); - put_online_cpus(); + cpus_read_unlock(); return count; } diff --git a/drivers/cpufreq/armada-37xx-cpufreq.c b/drivers/cpufreq/armada-37xx-cpufreq.c index 3fc98a3ffd91..c10fc33b29b1 100644 --- a/drivers/cpufreq/armada-37xx-cpufreq.c +++ b/drivers/cpufreq/armada-37xx-cpufreq.c @@ -104,7 +104,11 @@ struct armada_37xx_dvfs { }; static struct armada_37xx_dvfs armada_37xx_dvfs[] = { - {.cpu_freq_max = 1200*1000*1000, .divider = {1, 2, 4, 6} }, + /* + * The cpufreq scaling for 1.2 GHz variant of the SOC is currently + * unstable because we do not know how to configure it properly. + */ + /* {.cpu_freq_max = 1200*1000*1000, .divider = {1, 2, 4, 6} }, */ {.cpu_freq_max = 1000*1000*1000, .divider = {1, 2, 4, 5} }, {.cpu_freq_max = 800*1000*1000, .divider = {1, 2, 3, 4} }, {.cpu_freq_max = 600*1000*1000, .divider = {2, 4, 5, 6} }, diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c index bef7528aecd3..231e585f6ba2 100644 --- a/drivers/cpufreq/cpufreq-dt-platdev.c +++ b/drivers/cpufreq/cpufreq-dt-platdev.c @@ -139,7 +139,9 @@ static const struct of_device_id blocklist[] __initconst = { { .compatible = "qcom,qcs404", }, { .compatible = "qcom,sc7180", }, { .compatible = "qcom,sc7280", }, + { .compatible = "qcom,sc8180x", }, { .compatible = "qcom,sdm845", }, + { .compatible = "qcom,sm8150", }, { .compatible = "st,stih407", }, { .compatible = "st,stih410", }, diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 45f3416988f1..06c526d66dd3 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2654,18 +2654,18 @@ int cpufreq_boost_trigger_state(int state) cpufreq_driver->boost_enabled = state; write_unlock_irqrestore(&cpufreq_driver_lock, flags); - get_online_cpus(); + cpus_read_lock(); for_each_active_policy(policy) { ret = cpufreq_driver->set_boost(policy, state); if (ret) goto err_reset_state; } - put_online_cpus(); + cpus_read_unlock(); return 0; err_reset_state: - put_online_cpus(); + cpus_read_unlock(); write_lock_irqsave(&cpufreq_driver_lock, flags); cpufreq_driver->boost_enabled = !state; diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index ac361a8b1d3b..eb4320b619c9 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -418,7 +418,7 @@ static void od_set_powersave_bias(unsigned int powersave_bias) default_powersave_bias = powersave_bias; cpumask_clear(&done); - get_online_cpus(); + cpus_read_lock(); for_each_online_cpu(cpu) { struct cpufreq_policy *policy; struct policy_dbs_info *policy_dbs; @@ -442,7 +442,7 @@ static void od_set_powersave_bias(unsigned int powersave_bias) od_tuners = dbs_data->tuners; od_tuners->powersave_bias = default_powersave_bias; } - put_online_cpus(); + cpus_read_unlock(); } void od_register_powersave_bias_handler(unsigned int (*f) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index bb4549959b11..b4ffe6c8a0d0 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -32,6 +32,7 @@ #include <asm/cpu_device_id.h> #include <asm/cpufeature.h> #include <asm/intel-family.h> +#include "../drivers/thermal/intel/thermal_interrupt.h" #define INTEL_PSTATE_SAMPLING_INTERVAL (10 * NSEC_PER_MSEC) @@ -219,6 +220,7 @@ struct global_params { * @sched_flags: Store scheduler flags for possible cross CPU update * @hwp_boost_min: Last HWP boosted min performance * @suspended: Whether or not the driver has been suspended. + * @hwp_notify_work: workqueue for HWP notifications. * * This structure stores per CPU instance data for all CPUs. */ @@ -257,6 +259,7 @@ struct cpudata { unsigned int sched_flags; u32 hwp_boost_min; bool suspended; + struct delayed_work hwp_notify_work; }; static struct cpudata **all_cpu_data; @@ -1625,6 +1628,40 @@ static void intel_pstate_sysfs_hide_hwp_dynamic_boost(void) /************************** sysfs end ************************/ +static void intel_pstate_notify_work(struct work_struct *work) +{ + mutex_lock(&intel_pstate_driver_lock); + cpufreq_update_policy(smp_processor_id()); + wrmsrl(MSR_HWP_STATUS, 0); + mutex_unlock(&intel_pstate_driver_lock); +} + +void notify_hwp_interrupt(void) +{ + unsigned int this_cpu = smp_processor_id(); + struct cpudata *cpudata; + u64 value; + + if (!hwp_active || !boot_cpu_has(X86_FEATURE_HWP_NOTIFY)) + return; + + rdmsrl(MSR_HWP_STATUS, value); + if (!(value & 0x01)) + return; + + cpudata = all_cpu_data[this_cpu]; + schedule_delayed_work_on(this_cpu, &cpudata->hwp_notify_work, msecs_to_jiffies(10)); +} + +static void intel_pstate_enable_hwp_interrupt(struct cpudata *cpudata) +{ + /* Enable HWP notification interrupt for guaranteed performance change */ + if (boot_cpu_has(X86_FEATURE_HWP_NOTIFY)) { + INIT_DELAYED_WORK(&cpudata->hwp_notify_work, intel_pstate_notify_work); + wrmsrl_on_cpu(cpudata->cpu, MSR_HWP_INTERRUPT, 0x01); + } +} + static void intel_pstate_hwp_enable(struct cpudata *cpudata) { /* First disable HWP notification interrupt as we don't process them */ @@ -1634,6 +1671,8 @@ static void intel_pstate_hwp_enable(struct cpudata *cpudata) wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); if (cpudata->epp_default == -EINVAL) cpudata->epp_default = intel_pstate_get_epp(cpudata, 0); + + intel_pstate_enable_hwp_interrupt(cpudata); } static int atom_get_min_pstate(void) @@ -2969,7 +3008,7 @@ static void intel_pstate_driver_cleanup(void) { unsigned int cpu; - get_online_cpus(); + cpus_read_lock(); for_each_online_cpu(cpu) { if (all_cpu_data[cpu]) { if (intel_pstate_driver == &intel_pstate) @@ -2979,7 +3018,7 @@ static void intel_pstate_driver_cleanup(void) all_cpu_data[cpu] = NULL; } } - put_online_cpus(); + cpus_read_unlock(); intel_pstate_driver = NULL; } diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index b9ccb6a3dad9..12ab4014af71 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1180,7 +1180,7 @@ static int powernowk8_init(void) if (!x86_match_cpu(powernow_k8_ids)) return -ENODEV; - get_online_cpus(); + cpus_read_lock(); for_each_online_cpu(i) { smp_call_function_single(i, check_supported_cpu, &ret, 1); if (!ret) @@ -1188,10 +1188,10 @@ static int powernowk8_init(void) } if (supported_cpus != num_online_cpus()) { - put_online_cpus(); + cpus_read_unlock(); return -ENODEV; } - put_online_cpus(); + cpus_read_unlock(); ret = cpufreq_register_driver(&cpufreq_amd64_driver); if (ret) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 6fbb46b2f6da..5a2cf5f91ccb 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -919,7 +919,7 @@ static void powernv_cpufreq_work_fn(struct work_struct *work) unsigned int cpu; cpumask_t mask; - get_online_cpus(); + cpus_read_lock(); cpumask_and(&mask, &chip->mask, cpu_online_mask); smp_call_function_any(&mask, powernv_cpufreq_throttle_check, NULL, 0); @@ -940,7 +940,7 @@ static void powernv_cpufreq_work_fn(struct work_struct *work) cpufreq_cpu_put(policy); } out: - put_online_cpus(); + cpus_read_unlock(); } static int powernv_cpufreq_occ_msg(struct notifier_block *nb, diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c index ec9a87ca2dbb..75f818d04b48 100644 --- a/drivers/cpufreq/scmi-cpufreq.c +++ b/drivers/cpufreq/scmi-cpufreq.c @@ -134,7 +134,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy) } if (!zalloc_cpumask_var(&opp_shared_cpus, GFP_KERNEL)) - ret = -ENOMEM; + return -ENOMEM; /* Obtain CPUs that share SCMI performance controls */ ret = scmi_get_sharing_cpus(cpu_dev, policy->cpus); |