forked from Minki/linux
Merge back cpufreq material for v5.9.
This commit is contained in:
Rafael J. Wysocki
commit
80e3036866
@ -703,6 +703,11 @@
|
||||
cpufreq.off=1 [CPU_FREQ]
|
||||
disable the cpufreq sub-system
|
||||
|
||||
cpufreq.default_governor=
|
||||
[CPU_FREQ] Name of the default cpufreq governor or
|
||||
policy to use. This governor must be registered in the
|
||||
kernel before the cpufreq driver probes.
|
||||
|
||||
cpu_init_udelay=N
|
||||
[X86] Delay for N microsec between assert and de-assert
|
||||
of APIC INIT to start processors. This delay occurs
|
||||
|
||||
@ -147,9 +147,9 @@ CPUs in it.
|
||||
|
||||
The next major initialization step for a new policy object is to attach a
|
||||
scaling governor to it (to begin with, that is the default scaling governor
|
||||
determined by the kernel configuration, but it may be changed later
|
||||
via ``sysfs``). First, a pointer to the new policy object is passed to the
|
||||
governor's ``->init()`` callback which is expected to initialize all of the
|
||||
determined by the kernel command line or configuration, but it may be changed
|
||||
later via ``sysfs``). First, a pointer to the new policy object is passed to
|
||||
the governor's ``->init()`` callback which is expected to initialize all of the
|
||||
data structures necessary to handle the given policy and, possibly, to add
|
||||
a governor ``sysfs`` interface to it. Next, the governor is started by
|
||||
invoking its ``->start()`` callback.
|
||||
|
||||
@ -431,6 +431,17 @@ argument is passed to the kernel in the command line.
|
||||
supported in the current configuration, writes to this attribute will
|
||||
fail with an appropriate error.
|
||||
|
||||
``energy_efficiency``
|
||||
This attribute is only present on platforms, which have CPUs matching
|
||||
Kaby Lake or Coffee Lake desktop CPU model. By default
|
||||
energy efficiency optimizations are disabled on these CPU models in HWP
|
||||
mode by this driver. Enabling energy efficiency may limit maximum
|
||||
operating frequency in both HWP and non HWP mode. In non HWP mode,
|
||||
optimizations are done only in the turbo frequency range. In HWP mode,
|
||||
optimizations are done in the entire frequency range. Setting this
|
||||
attribute to "1" enables energy efficiency optimizations and setting
|
||||
to "0" disables energy efficiency optimizations.
|
||||
|
||||
Interpretation of Policy Attributes
|
||||
-----------------------------------
|
||||
|
||||
@ -554,7 +565,11 @@ somewhere between the two extremes:
|
||||
Strings written to the ``energy_performance_preference`` attribute are
|
||||
internally translated to integer values written to the processor's
|
||||
Energy-Performance Preference (EPP) knob (if supported) or its
|
||||
Energy-Performance Bias (EPB) knob.
|
||||
Energy-Performance Bias (EPB) knob. It is also possible to write a positive
|
||||
integer value between 0 to 255, if the EPP feature is present. If the EPP
|
||||
feature is not present, writing integer value to this attribute is not
|
||||
supported. In this case, user can use
|
||||
"/sys/devices/system/cpu/cpu*/power/energy_perf_bias" interface.
|
||||
|
||||
[Note that tasks may by migrated from one CPU to another by the scheduler's
|
||||
load-balancing algorithm and if different energy vs performance hints are
|
||||
|
||||
@ -126,30 +126,8 @@ static struct cpufreq_governor spu_governor = {
|
||||
.stop = spu_gov_stop,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
/*
|
||||
* module init and destoy
|
||||
*/
|
||||
|
||||
static int __init spu_gov_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = cpufreq_register_governor(&spu_governor);
|
||||
if (ret)
|
||||
printk(KERN_ERR "registration of governor failed\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void __exit spu_gov_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(&spu_governor);
|
||||
}
|
||||
|
||||
|
||||
module_init(spu_gov_init);
|
||||
module_exit(spu_gov_exit);
|
||||
cpufreq_governor_init(spu_governor);
|
||||
cpufreq_governor_exit(spu_governor);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("Christian Krafft <krafft@de.ibm.com>");
|
||||
|
||||
|
||||
@ -149,6 +149,10 @@
|
||||
|
||||
#define MSR_LBR_SELECT 0x000001c8
|
||||
#define MSR_LBR_TOS 0x000001c9
|
||||
|
||||
#define MSR_IA32_POWER_CTL 0x000001fc
|
||||
#define MSR_IA32_POWER_CTL_BIT_EE 19
|
||||
|
||||
#define MSR_LBR_NHM_FROM 0x00000680
|
||||
#define MSR_LBR_NHM_TO 0x000006c0
|
||||
#define MSR_LBR_CORE_FROM 0x00000040
|
||||
@ -253,8 +257,6 @@
|
||||
|
||||
#define MSR_PEBS_FRONTEND 0x000003f7
|
||||
|
||||
#define MSR_IA32_POWER_CTL 0x000001fc
|
||||
|
||||
#define MSR_IA32_MC0_CTL 0x00000400
|
||||
#define MSR_IA32_MC0_STATUS 0x00000401
|
||||
#define MSR_IA32_MC0_ADDR 0x00000402
|
||||
|
||||
@ -244,7 +244,7 @@ static unsigned extract_freq(struct cpufreq_policy *policy, u32 val)
|
||||
|
||||
static u32 cpu_freq_read_intel(struct acpi_pct_register *not_used)
|
||||
{
|
||||
u32 val, dummy;
|
||||
u32 val, dummy __always_unused;
|
||||
|
||||
rdmsr(MSR_IA32_PERF_CTL, val, dummy);
|
||||
return val;
|
||||
@ -261,7 +261,7 @@ static void cpu_freq_write_intel(struct acpi_pct_register *not_used, u32 val)
|
||||
|
||||
static u32 cpu_freq_read_amd(struct acpi_pct_register *not_used)
|
||||
{
|
||||
u32 val, dummy;
|
||||
u32 val, dummy __always_unused;
|
||||
|
||||
rdmsr(MSR_AMD_PERF_CTL, val, dummy);
|
||||
return val;
|
||||
@ -612,7 +612,7 @@ static const struct dmi_system_id sw_any_bug_dmi_table[] = {
|
||||
static int acpi_cpufreq_blacklist(struct cpuinfo_x86 *c)
|
||||
{
|
||||
/* Intel Xeon Processor 7100 Series Specification Update
|
||||
* http://www.intel.com/Assets/PDF/specupdate/314554.pdf
|
||||
* https://www.intel.com/Assets/PDF/specupdate/314554.pdf
|
||||
* AL30: A Machine Check Exception (MCE) Occurring during an
|
||||
* Enhanced Intel SpeedStep Technology Ratio Change May Cause
|
||||
* Both Processor Cores to Lock Up. */
|
||||
@ -993,14 +993,14 @@ MODULE_PARM_DESC(acpi_pstate_strict,
|
||||
late_initcall(acpi_cpufreq_init);
|
||||
module_exit(acpi_cpufreq_exit);
|
||||
|
||||
static const struct x86_cpu_id acpi_cpufreq_ids[] = {
|
||||
static const struct x86_cpu_id __maybe_unused acpi_cpufreq_ids[] = {
|
||||
X86_MATCH_FEATURE(X86_FEATURE_ACPI, NULL),
|
||||
X86_MATCH_FEATURE(X86_FEATURE_HW_PSTATE, NULL),
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(x86cpu, acpi_cpufreq_ids);
|
||||
|
||||
static const struct acpi_device_id processor_device_ids[] = {
|
||||
static const struct acpi_device_id __maybe_unused processor_device_ids[] = {
|
||||
{ACPI_PROCESSOR_OBJECT_HID, },
|
||||
{ACPI_PROCESSOR_DEVICE_HID, },
|
||||
{},
|
||||
|
||||
@ -144,7 +144,7 @@ static void __exit amd_freq_sensitivity_exit(void)
|
||||
}
|
||||
module_exit(amd_freq_sensitivity_exit);
|
||||
|
||||
static const struct x86_cpu_id amd_freq_sensitivity_ids[] = {
|
||||
static const struct x86_cpu_id __maybe_unused amd_freq_sensitivity_ids[] = {
|
||||
X86_MATCH_FEATURE(X86_FEATURE_PROC_FEEDBACK, NULL),
|
||||
{}
|
||||
};
|
||||
|
||||
@ -50,7 +50,9 @@ static LIST_HEAD(cpufreq_governor_list);
|
||||
#define for_each_governor(__governor) \
|
||||
list_for_each_entry(__governor, &cpufreq_governor_list, governor_list)
|
||||
|
||||
/**
|
||||
static char default_governor[CPUFREQ_NAME_LEN];
|
||||
|
||||
/*
|
||||
* The "cpufreq driver" - the arch- or hardware-dependent low
|
||||
* level driver of CPUFreq support, and its spinlock. This lock
|
||||
* also protects the cpufreq_cpu_data array.
|
||||
@ -78,7 +80,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
|
||||
struct cpufreq_governor *new_gov,
|
||||
unsigned int new_pol);
|
||||
|
||||
/**
|
||||
/*
|
||||
* Two notifier lists: the "policy" list is involved in the
|
||||
* validation process for a new CPU frequency policy; the
|
||||
* "transition" list for kernel code that needs to handle
|
||||
@ -298,7 +300,7 @@ struct cpufreq_policy *cpufreq_cpu_acquire(unsigned int cpu)
|
||||
* EXTERNALLY AFFECTING FREQUENCY CHANGES *
|
||||
*********************************************************************/
|
||||
|
||||
/**
|
||||
/*
|
||||
* adjust_jiffies - adjust the system "loops_per_jiffy"
|
||||
*
|
||||
* This function alters the system "loops_per_jiffy" for the clock
|
||||
@ -524,6 +526,7 @@ EXPORT_SYMBOL_GPL(cpufreq_disable_fast_switch);
|
||||
/**
|
||||
* cpufreq_driver_resolve_freq - Map a target frequency to a driver-supported
|
||||
* one.
|
||||
* @policy: associated policy to interrogate
|
||||
* @target_freq: target frequency to resolve.
|
||||
*
|
||||
* The target to driver frequency mapping is cached in the policy.
|
||||
@ -621,6 +624,24 @@ static struct cpufreq_governor *find_governor(const char *str_governor)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct cpufreq_governor *get_governor(const char *str_governor)
|
||||
{
|
||||
struct cpufreq_governor *t;
|
||||
|
||||
mutex_lock(&cpufreq_governor_mutex);
|
||||
t = find_governor(str_governor);
|
||||
if (!t)
|
||||
goto unlock;
|
||||
|
||||
if (!try_module_get(t->owner))
|
||||
t = NULL;
|
||||
|
||||
unlock:
|
||||
mutex_unlock(&cpufreq_governor_mutex);
|
||||
|
||||
return t;
|
||||
}
|
||||
|
||||
static unsigned int cpufreq_parse_policy(char *str_governor)
|
||||
{
|
||||
if (!strncasecmp(str_governor, "performance", CPUFREQ_NAME_LEN))
|
||||
@ -640,31 +661,17 @@ static struct cpufreq_governor *cpufreq_parse_governor(char *str_governor)
|
||||
{
|
||||
struct cpufreq_governor *t;
|
||||
|
||||
mutex_lock(&cpufreq_governor_mutex);
|
||||
t = get_governor(str_governor);
|
||||
if (t)
|
||||
return t;
|
||||
|
||||
t = find_governor(str_governor);
|
||||
if (!t) {
|
||||
int ret;
|
||||
if (request_module("cpufreq_%s", str_governor))
|
||||
return NULL;
|
||||
|
||||
mutex_unlock(&cpufreq_governor_mutex);
|
||||
|
||||
ret = request_module("cpufreq_%s", str_governor);
|
||||
if (ret)
|
||||
return NULL;
|
||||
|
||||
mutex_lock(&cpufreq_governor_mutex);
|
||||
|
||||
t = find_governor(str_governor);
|
||||
}
|
||||
if (t && !try_module_get(t->owner))
|
||||
t = NULL;
|
||||
|
||||
mutex_unlock(&cpufreq_governor_mutex);
|
||||
|
||||
return t;
|
||||
return get_governor(str_governor);
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* cpufreq_per_cpu_attr_read() / show_##file_name() -
|
||||
* print out cpufreq information
|
||||
*
|
||||
@ -706,7 +713,7 @@ static ssize_t show_scaling_cur_freq(struct cpufreq_policy *policy, char *buf)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* cpufreq_per_cpu_attr_write() / store_##file_name() - sysfs write access
|
||||
*/
|
||||
#define store_one(file_name, object) \
|
||||
@ -727,7 +734,7 @@ static ssize_t store_##file_name \
|
||||
store_one(scaling_min_freq, min);
|
||||
store_one(scaling_max_freq, max);
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_cpuinfo_cur_freq - current CPU frequency as detected by hardware
|
||||
*/
|
||||
static ssize_t show_cpuinfo_cur_freq(struct cpufreq_policy *policy,
|
||||
@ -741,7 +748,7 @@ static ssize_t show_cpuinfo_cur_freq(struct cpufreq_policy *policy,
|
||||
return sprintf(buf, "<unknown>\n");
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_scaling_governor - show the current policy for the specified CPU
|
||||
*/
|
||||
static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
|
||||
@ -756,7 +763,7 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* store_scaling_governor - store policy for the specified CPU
|
||||
*/
|
||||
static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
|
||||
@ -793,7 +800,7 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
|
||||
return ret ? ret : count;
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_scaling_driver - show the cpufreq driver currently loaded
|
||||
*/
|
||||
static ssize_t show_scaling_driver(struct cpufreq_policy *policy, char *buf)
|
||||
@ -801,7 +808,7 @@ static ssize_t show_scaling_driver(struct cpufreq_policy *policy, char *buf)
|
||||
return scnprintf(buf, CPUFREQ_NAME_PLEN, "%s\n", cpufreq_driver->name);
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_scaling_available_governors - show the available CPUfreq governors
|
||||
*/
|
||||
static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy,
|
||||
@ -815,12 +822,14 @@ static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy,
|
||||
goto out;
|
||||
}
|
||||
|
||||
mutex_lock(&cpufreq_governor_mutex);
|
||||
for_each_governor(t) {
|
||||
if (i >= (ssize_t) ((PAGE_SIZE / sizeof(char))
|
||||
- (CPUFREQ_NAME_LEN + 2)))
|
||||
goto out;
|
||||
break;
|
||||
i += scnprintf(&buf[i], CPUFREQ_NAME_PLEN, "%s ", t->name);
|
||||
}
|
||||
mutex_unlock(&cpufreq_governor_mutex);
|
||||
out:
|
||||
i += sprintf(&buf[i], "\n");
|
||||
return i;
|
||||
@ -843,7 +852,7 @@ ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf)
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpufreq_show_cpus);
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_related_cpus - show the CPUs affected by each transition even if
|
||||
* hw coordination is in use
|
||||
*/
|
||||
@ -852,7 +861,7 @@ static ssize_t show_related_cpus(struct cpufreq_policy *policy, char *buf)
|
||||
return cpufreq_show_cpus(policy->related_cpus, buf);
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_affected_cpus - show the CPUs affected by each transition
|
||||
*/
|
||||
static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
|
||||
@ -886,7 +895,7 @@ static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf)
|
||||
return policy->governor->show_setspeed(policy, buf);
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_bios_limit - show the current cpufreq HW/BIOS limitation
|
||||
*/
|
||||
static ssize_t show_bios_limit(struct cpufreq_policy *policy, char *buf)
|
||||
@ -1048,36 +1057,36 @@ static int cpufreq_add_dev_interface(struct cpufreq_policy *policy)
|
||||
return 0;
|
||||
}
|
||||
|
||||
__weak struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int cpufreq_init_policy(struct cpufreq_policy *policy)
|
||||
{
|
||||
struct cpufreq_governor *def_gov = cpufreq_default_governor();
|
||||
struct cpufreq_governor *gov = NULL;
|
||||
unsigned int pol = CPUFREQ_POLICY_UNKNOWN;
|
||||
int ret;
|
||||
|
||||
if (has_target()) {
|
||||
/* Update policy governor to the one used before hotplug. */
|
||||
gov = find_governor(policy->last_governor);
|
||||
gov = get_governor(policy->last_governor);
|
||||
if (gov) {
|
||||
pr_debug("Restoring governor %s for cpu %d\n",
|
||||
policy->governor->name, policy->cpu);
|
||||
} else if (def_gov) {
|
||||
gov = def_gov;
|
||||
gov->name, policy->cpu);
|
||||
} else {
|
||||
return -ENODATA;
|
||||
gov = get_governor(default_governor);
|
||||
}
|
||||
|
||||
if (!gov) {
|
||||
gov = cpufreq_default_governor();
|
||||
__module_get(gov->owner);
|
||||
}
|
||||
|
||||
} else {
|
||||
|
||||
/* Use the default policy if there is no last_policy. */
|
||||
if (policy->last_policy) {
|
||||
pol = policy->last_policy;
|
||||
} else if (def_gov) {
|
||||
pol = cpufreq_parse_policy(def_gov->name);
|
||||
} else {
|
||||
pol = cpufreq_parse_policy(default_governor);
|
||||
/*
|
||||
* In case the default governor is neiter "performance"
|
||||
* In case the default governor is neither "performance"
|
||||
* nor "powersave", fall back to the initial policy
|
||||
* value set by the driver.
|
||||
*/
|
||||
@ -1089,7 +1098,11 @@ static int cpufreq_init_policy(struct cpufreq_policy *policy)
|
||||
return -ENODATA;
|
||||
}
|
||||
|
||||
return cpufreq_set_policy(policy, gov, pol);
|
||||
ret = cpufreq_set_policy(policy, gov, pol);
|
||||
if (gov)
|
||||
module_put(gov->owner);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
|
||||
@ -1604,7 +1617,7 @@ unlock:
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* cpufreq_remove_dev - remove a CPU device
|
||||
*
|
||||
* Removes the cpufreq interface for a CPU device.
|
||||
@ -2361,6 +2374,7 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_governor);
|
||||
* cpufreq_get_policy - get the current cpufreq_policy
|
||||
* @policy: struct cpufreq_policy into which the current cpufreq_policy
|
||||
* is written
|
||||
* @cpu: CPU to find the policy for
|
||||
*
|
||||
* Reads the current cpufreq policy.
|
||||
*/
|
||||
@ -2747,7 +2761,7 @@ out:
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpufreq_register_driver);
|
||||
|
||||
/**
|
||||
/*
|
||||
* cpufreq_unregister_driver - unregister the current CPUFreq driver
|
||||
*
|
||||
* Unregister the current CPUFreq driver. Only call this if you have
|
||||
@ -2783,13 +2797,19 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_driver);
|
||||
|
||||
static int __init cpufreq_core_init(void)
|
||||
{
|
||||
struct cpufreq_governor *gov = cpufreq_default_governor();
|
||||
|
||||
if (cpufreq_disabled())
|
||||
return -ENODEV;
|
||||
|
||||
cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj);
|
||||
BUG_ON(!cpufreq_global_kobject);
|
||||
|
||||
if (!strlen(default_governor))
|
||||
strncpy(default_governor, gov->name, CPUFREQ_NAME_LEN);
|
||||
|
||||
return 0;
|
||||
}
|
||||
module_param(off, int, 0444);
|
||||
module_param_string(default_governor, default_governor, CPUFREQ_NAME_LEN, 0444);
|
||||
core_initcall(cpufreq_core_init);
|
||||
|
||||
@ -322,17 +322,7 @@ static struct dbs_governor cs_governor = {
|
||||
.start = cs_start,
|
||||
};
|
||||
|
||||
#define CPU_FREQ_GOV_CONSERVATIVE (&cs_governor.gov)
|
||||
|
||||
static int __init cpufreq_gov_dbs_init(void)
|
||||
{
|
||||
return cpufreq_register_governor(CPU_FREQ_GOV_CONSERVATIVE);
|
||||
}
|
||||
|
||||
static void __exit cpufreq_gov_dbs_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(CPU_FREQ_GOV_CONSERVATIVE);
|
||||
}
|
||||
#define CPU_FREQ_GOV_CONSERVATIVE (cs_governor.gov)
|
||||
|
||||
MODULE_AUTHOR("Alexander Clouter <alex@digriz.org.uk>");
|
||||
MODULE_DESCRIPTION("'cpufreq_conservative' - A dynamic cpufreq governor for "
|
||||
@ -343,11 +333,9 @@ MODULE_LICENSE("GPL");
|
||||
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE
|
||||
struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
return CPU_FREQ_GOV_CONSERVATIVE;
|
||||
return &CPU_FREQ_GOV_CONSERVATIVE;
|
||||
}
|
||||
|
||||
core_initcall(cpufreq_gov_dbs_init);
|
||||
#else
|
||||
module_init(cpufreq_gov_dbs_init);
|
||||
#endif
|
||||
module_exit(cpufreq_gov_dbs_exit);
|
||||
|
||||
cpufreq_governor_init(CPU_FREQ_GOV_CONSERVATIVE);
|
||||
cpufreq_governor_exit(CPU_FREQ_GOV_CONSERVATIVE);
|
||||
|
||||
@ -26,7 +26,7 @@ static DEFINE_PER_CPU(struct cpu_dbs_info, cpu_dbs);
|
||||
static DEFINE_MUTEX(gov_dbs_data_mutex);
|
||||
|
||||
/* Common sysfs tunables */
|
||||
/**
|
||||
/*
|
||||
* store_sampling_rate - update sampling rate effective immediately if needed.
|
||||
*
|
||||
* If new rate is smaller than the old, simply updating
|
||||
|
||||
@ -408,7 +408,7 @@ static struct dbs_governor od_dbs_gov = {
|
||||
.start = od_start,
|
||||
};
|
||||
|
||||
#define CPU_FREQ_GOV_ONDEMAND (&od_dbs_gov.gov)
|
||||
#define CPU_FREQ_GOV_ONDEMAND (od_dbs_gov.gov)
|
||||
|
||||
static void od_set_powersave_bias(unsigned int powersave_bias)
|
||||
{
|
||||
@ -429,7 +429,7 @@ static void od_set_powersave_bias(unsigned int powersave_bias)
|
||||
continue;
|
||||
|
||||
policy = cpufreq_cpu_get_raw(cpu);
|
||||
if (!policy || policy->governor != CPU_FREQ_GOV_ONDEMAND)
|
||||
if (!policy || policy->governor != &CPU_FREQ_GOV_ONDEMAND)
|
||||
continue;
|
||||
|
||||
policy_dbs = policy->governor_data;
|
||||
@ -461,16 +461,6 @@ void od_unregister_powersave_bias_handler(void)
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(od_unregister_powersave_bias_handler);
|
||||
|
||||
static int __init cpufreq_gov_dbs_init(void)
|
||||
{
|
||||
return cpufreq_register_governor(CPU_FREQ_GOV_ONDEMAND);
|
||||
}
|
||||
|
||||
static void __exit cpufreq_gov_dbs_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(CPU_FREQ_GOV_ONDEMAND);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>");
|
||||
MODULE_AUTHOR("Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>");
|
||||
MODULE_DESCRIPTION("'cpufreq_ondemand' - A dynamic cpufreq governor for "
|
||||
@ -480,11 +470,9 @@ MODULE_LICENSE("GPL");
|
||||
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
|
||||
struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
return CPU_FREQ_GOV_ONDEMAND;
|
||||
return &CPU_FREQ_GOV_ONDEMAND;
|
||||
}
|
||||
|
||||
core_initcall(cpufreq_gov_dbs_init);
|
||||
#else
|
||||
module_init(cpufreq_gov_dbs_init);
|
||||
#endif
|
||||
module_exit(cpufreq_gov_dbs_exit);
|
||||
|
||||
cpufreq_governor_init(CPU_FREQ_GOV_ONDEMAND);
|
||||
cpufreq_governor_exit(CPU_FREQ_GOV_ONDEMAND);
|
||||
|
||||
@ -23,16 +23,6 @@ static struct cpufreq_governor cpufreq_gov_performance = {
|
||||
.limits = cpufreq_gov_performance_limits,
|
||||
};
|
||||
|
||||
static int __init cpufreq_gov_performance_init(void)
|
||||
{
|
||||
return cpufreq_register_governor(&cpufreq_gov_performance);
|
||||
}
|
||||
|
||||
static void __exit cpufreq_gov_performance_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(&cpufreq_gov_performance);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
|
||||
struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
@ -50,5 +40,5 @@ MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
|
||||
MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
core_initcall(cpufreq_gov_performance_init);
|
||||
module_exit(cpufreq_gov_performance_exit);
|
||||
cpufreq_governor_init(cpufreq_gov_performance);
|
||||
cpufreq_governor_exit(cpufreq_gov_performance);
|
||||
|
||||
@ -23,16 +23,6 @@ static struct cpufreq_governor cpufreq_gov_powersave = {
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int __init cpufreq_gov_powersave_init(void)
|
||||
{
|
||||
return cpufreq_register_governor(&cpufreq_gov_powersave);
|
||||
}
|
||||
|
||||
static void __exit cpufreq_gov_powersave_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(&cpufreq_gov_powersave);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
|
||||
MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -42,9 +32,7 @@ struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
return &cpufreq_gov_powersave;
|
||||
}
|
||||
|
||||
core_initcall(cpufreq_gov_powersave_init);
|
||||
#else
|
||||
module_init(cpufreq_gov_powersave_init);
|
||||
#endif
|
||||
module_exit(cpufreq_gov_powersave_exit);
|
||||
|
||||
cpufreq_governor_init(cpufreq_gov_powersave);
|
||||
cpufreq_governor_exit(cpufreq_gov_powersave);
|
||||
|
||||
@ -126,16 +126,6 @@ static struct cpufreq_governor cpufreq_gov_userspace = {
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int __init cpufreq_gov_userspace_init(void)
|
||||
{
|
||||
return cpufreq_register_governor(&cpufreq_gov_userspace);
|
||||
}
|
||||
|
||||
static void __exit cpufreq_gov_userspace_exit(void)
|
||||
{
|
||||
cpufreq_unregister_governor(&cpufreq_gov_userspace);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>, "
|
||||
"Russell King <rmk@arm.linux.org.uk>");
|
||||
MODULE_DESCRIPTION("CPUfreq policy governor 'userspace'");
|
||||
@ -146,9 +136,7 @@ struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
{
|
||||
return &cpufreq_gov_userspace;
|
||||
}
|
||||
|
||||
core_initcall(cpufreq_gov_userspace_init);
|
||||
#else
|
||||
module_init(cpufreq_gov_userspace_init);
|
||||
#endif
|
||||
module_exit(cpufreq_gov_userspace_exit);
|
||||
|
||||
cpufreq_governor_init(cpufreq_gov_userspace);
|
||||
cpufreq_governor_exit(cpufreq_gov_userspace);
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
/*
|
||||
* CPU frequency scaling for DaVinci
|
||||
*
|
||||
* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
|
||||
* Copyright (C) 2009 Texas Instruments Incorporated - https://www.ti.com/
|
||||
*
|
||||
* Based on linux/arch/arm/plat-omap/cpu-omap.c. Original Copyright follows:
|
||||
*
|
||||
|
||||
@ -221,7 +221,7 @@ int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_index);
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_available_freqs - show available frequencies for the specified CPU
|
||||
*/
|
||||
static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
|
||||
@ -260,7 +260,7 @@ static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
|
||||
struct freq_attr cpufreq_freq_attr_##_name##_freqs = \
|
||||
__ATTR_RO(_name##_frequencies)
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_scaling_available_frequencies - show available normal frequencies for
|
||||
* the specified CPU
|
||||
*/
|
||||
@ -272,7 +272,7 @@ static ssize_t scaling_available_frequencies_show(struct cpufreq_policy *policy,
|
||||
cpufreq_attr_available_freq(scaling_available);
|
||||
EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
|
||||
|
||||
/**
|
||||
/*
|
||||
* show_available_boost_freqs - show available boost frequencies for
|
||||
* the specified CPU
|
||||
*/
|
||||
|
||||
@ -201,9 +201,7 @@ struct global_params {
|
||||
* @pstate: Stores P state limits for this CPU
|
||||
* @vid: Stores VID limits for this CPU
|
||||
* @last_sample_time: Last Sample time
|
||||
* @aperf_mperf_shift: Number of clock cycles after aperf, merf is incremented
|
||||
* This shift is a multiplier to mperf delta to
|
||||
* calculate CPU busy.
|
||||
* @aperf_mperf_shift: APERF vs MPERF counting frequency difference
|
||||
* @prev_aperf: Last APERF value read from APERF MSR
|
||||
* @prev_mperf: Last MPERF value read from MPERF MSR
|
||||
* @prev_tsc: Last timestamp counter (TSC) value
|
||||
@ -275,6 +273,7 @@ static struct cpudata **all_cpu_data;
|
||||
* @get_min: Callback to get minimum P state
|
||||
* @get_turbo: Callback to get turbo P state
|
||||
* @get_scaling: Callback to get frequency scaling factor
|
||||
* @get_aperf_mperf_shift: Callback to get the APERF vs MPERF frequency difference
|
||||
* @get_val: Callback to convert P state to actual MSR write value
|
||||
* @get_vid: Callback to get VID data for Atom platforms
|
||||
*
|
||||
@ -602,11 +601,12 @@ static const unsigned int epp_values[] = {
|
||||
HWP_EPP_POWERSAVE
|
||||
};
|
||||
|
||||
static int intel_pstate_get_energy_pref_index(struct cpudata *cpu_data)
|
||||
static int intel_pstate_get_energy_pref_index(struct cpudata *cpu_data, int *raw_epp)
|
||||
{
|
||||
s16 epp;
|
||||
int index = -EINVAL;
|
||||
|
||||
*raw_epp = 0;
|
||||
epp = intel_pstate_get_epp(cpu_data, 0);
|
||||
if (epp < 0)
|
||||
return epp;
|
||||
@ -614,12 +614,14 @@ static int intel_pstate_get_energy_pref_index(struct cpudata *cpu_data)
|
||||
if (boot_cpu_has(X86_FEATURE_HWP_EPP)) {
|
||||
if (epp == HWP_EPP_PERFORMANCE)
|
||||
return 1;
|
||||
if (epp <= HWP_EPP_BALANCE_PERFORMANCE)
|
||||
if (epp == HWP_EPP_BALANCE_PERFORMANCE)
|
||||
return 2;
|
||||
if (epp <= HWP_EPP_BALANCE_POWERSAVE)
|
||||
if (epp == HWP_EPP_BALANCE_POWERSAVE)
|
||||
return 3;
|
||||
else
|
||||
if (epp == HWP_EPP_POWERSAVE)
|
||||
return 4;
|
||||
*raw_epp = epp;
|
||||
return 0;
|
||||
} else if (boot_cpu_has(X86_FEATURE_EPB)) {
|
||||
/*
|
||||
* Range:
|
||||
@ -638,7 +640,8 @@ static int intel_pstate_get_energy_pref_index(struct cpudata *cpu_data)
|
||||
}
|
||||
|
||||
static int intel_pstate_set_energy_pref_index(struct cpudata *cpu_data,
|
||||
int pref_index)
|
||||
int pref_index, bool use_raw,
|
||||
u32 raw_epp)
|
||||
{
|
||||
int epp = -EINVAL;
|
||||
int ret;
|
||||
@ -657,6 +660,16 @@ static int intel_pstate_set_energy_pref_index(struct cpudata *cpu_data,
|
||||
|
||||
value &= ~GENMASK_ULL(31, 24);
|
||||
|
||||
if (use_raw) {
|
||||
if (raw_epp > 255) {
|
||||
ret = -EINVAL;
|
||||
goto return_pref;
|
||||
}
|
||||
value |= (u64)raw_epp << 24;
|
||||
ret = wrmsrl_on_cpu(cpu_data->cpu, MSR_HWP_REQUEST, value);
|
||||
goto return_pref;
|
||||
}
|
||||
|
||||
if (epp == -EINVAL)
|
||||
epp = epp_values[pref_index - 1];
|
||||
|
||||
@ -694,6 +707,8 @@ static ssize_t store_energy_performance_preference(
|
||||
{
|
||||
struct cpudata *cpu_data = all_cpu_data[policy->cpu];
|
||||
char str_preference[21];
|
||||
bool raw = false;
|
||||
u32 epp = 0;
|
||||
int ret;
|
||||
|
||||
ret = sscanf(buf, "%20s", str_preference);
|
||||
@ -701,10 +716,21 @@ static ssize_t store_energy_performance_preference(
|
||||
return -EINVAL;
|
||||
|
||||
ret = match_string(energy_perf_strings, -1, str_preference);
|
||||
if (ret < 0)
|
||||
if (ret < 0) {
|
||||
if (!boot_cpu_has(X86_FEATURE_HWP_EPP))
|
||||
return ret;
|
||||
|
||||
ret = kstrtouint(buf, 10, &epp);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
raw = true;
|
||||
}
|
||||
|
||||
ret = intel_pstate_set_energy_pref_index(cpu_data, ret, raw, epp);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
intel_pstate_set_energy_pref_index(cpu_data, ret);
|
||||
return count;
|
||||
}
|
||||
|
||||
@ -712,13 +738,16 @@ static ssize_t show_energy_performance_preference(
|
||||
struct cpufreq_policy *policy, char *buf)
|
||||
{
|
||||
struct cpudata *cpu_data = all_cpu_data[policy->cpu];
|
||||
int preference;
|
||||
int preference, raw_epp;
|
||||
|
||||
preference = intel_pstate_get_energy_pref_index(cpu_data);
|
||||
preference = intel_pstate_get_energy_pref_index(cpu_data, &raw_epp);
|
||||
if (preference < 0)
|
||||
return preference;
|
||||
|
||||
return sprintf(buf, "%s\n", energy_perf_strings[preference]);
|
||||
if (raw_epp)
|
||||
return sprintf(buf, "%d\n", raw_epp);
|
||||
else
|
||||
return sprintf(buf, "%s\n", energy_perf_strings[preference]);
|
||||
}
|
||||
|
||||
cpufreq_freq_attr_rw(energy_performance_preference);
|
||||
@ -866,10 +895,39 @@ static int intel_pstate_hwp_save_state(struct cpufreq_policy *policy)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define POWER_CTL_EE_ENABLE 1
|
||||
#define POWER_CTL_EE_DISABLE 2
|
||||
|
||||
static int power_ctl_ee_state;
|
||||
|
||||
static void set_power_ctl_ee_state(bool input)
|
||||
{
|
||||
u64 power_ctl;
|
||||
|
||||
mutex_lock(&intel_pstate_driver_lock);
|
||||
rdmsrl(MSR_IA32_POWER_CTL, power_ctl);
|
||||
if (input) {
|
||||
power_ctl &= ~BIT(MSR_IA32_POWER_CTL_BIT_EE);
|
||||
power_ctl_ee_state = POWER_CTL_EE_ENABLE;
|
||||
} else {
|
||||
power_ctl |= BIT(MSR_IA32_POWER_CTL_BIT_EE);
|
||||
power_ctl_ee_state = POWER_CTL_EE_DISABLE;
|
||||
}
|
||||
wrmsrl(MSR_IA32_POWER_CTL, power_ctl);
|
||||
mutex_unlock(&intel_pstate_driver_lock);
|
||||
}
|
||||
|
||||
static void intel_pstate_hwp_enable(struct cpudata *cpudata);
|
||||
|
||||
static int intel_pstate_resume(struct cpufreq_policy *policy)
|
||||
{
|
||||
|
||||
/* Only restore if the system default is changed */
|
||||
if (power_ctl_ee_state == POWER_CTL_EE_ENABLE)
|
||||
set_power_ctl_ee_state(true);
|
||||
else if (power_ctl_ee_state == POWER_CTL_EE_DISABLE)
|
||||
set_power_ctl_ee_state(false);
|
||||
|
||||
if (!hwp_active)
|
||||
return 0;
|
||||
|
||||
@ -1218,6 +1276,32 @@ static ssize_t store_hwp_dynamic_boost(struct kobject *a,
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_energy_efficiency(struct kobject *kobj, struct kobj_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
u64 power_ctl;
|
||||
int enable;
|
||||
|
||||
rdmsrl(MSR_IA32_POWER_CTL, power_ctl);
|
||||
enable = !!(power_ctl & BIT(MSR_IA32_POWER_CTL_BIT_EE));
|
||||
return sprintf(buf, "%d\n", !enable);
|
||||
}
|
||||
|
||||
static ssize_t store_energy_efficiency(struct kobject *a, struct kobj_attribute *b,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
bool input;
|
||||
int ret;
|
||||
|
||||
ret = kstrtobool(buf, &input);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
set_power_ctl_ee_state(input);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
show_one(max_perf_pct, max_perf_pct);
|
||||
show_one(min_perf_pct, min_perf_pct);
|
||||
|
||||
@ -1228,6 +1312,7 @@ define_one_global_rw(min_perf_pct);
|
||||
define_one_global_ro(turbo_pct);
|
||||
define_one_global_ro(num_pstates);
|
||||
define_one_global_rw(hwp_dynamic_boost);
|
||||
define_one_global_rw(energy_efficiency);
|
||||
|
||||
static struct attribute *intel_pstate_attributes[] = {
|
||||
&status.attr,
|
||||
@ -1241,6 +1326,8 @@ static const struct attribute_group intel_pstate_attr_group = {
|
||||
.attrs = intel_pstate_attributes,
|
||||
};
|
||||
|
||||
static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[];
|
||||
|
||||
static void __init intel_pstate_sysfs_expose_params(void)
|
||||
{
|
||||
struct kobject *intel_pstate_kobject;
|
||||
@ -1273,6 +1360,11 @@ static void __init intel_pstate_sysfs_expose_params(void)
|
||||
&hwp_dynamic_boost.attr);
|
||||
WARN_ON(rc);
|
||||
}
|
||||
|
||||
if (x86_match_cpu(intel_pstate_cpu_ee_disable_ids)) {
|
||||
rc = sysfs_create_file(intel_pstate_kobject, &energy_efficiency.attr);
|
||||
WARN_ON(rc);
|
||||
}
|
||||
}
|
||||
/************************** sysfs end ************************/
|
||||
|
||||
@ -1288,25 +1380,6 @@ static void intel_pstate_hwp_enable(struct cpudata *cpudata)
|
||||
cpudata->epp_default = intel_pstate_get_epp(cpudata, 0);
|
||||
}
|
||||
|
||||
#define MSR_IA32_POWER_CTL_BIT_EE 19
|
||||
|
||||
/* Disable energy efficiency optimization */
|
||||
static void intel_pstate_disable_ee(int cpu)
|
||||
{
|
||||
u64 power_ctl;
|
||||
int ret;
|
||||
|
||||
ret = rdmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, &power_ctl);
|
||||
if (ret)
|
||||
return;
|
||||
|
||||
if (!(power_ctl & BIT(MSR_IA32_POWER_CTL_BIT_EE))) {
|
||||
pr_info("Disabling energy efficiency optimization\n");
|
||||
power_ctl |= BIT(MSR_IA32_POWER_CTL_BIT_EE);
|
||||
wrmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, power_ctl);
|
||||
}
|
||||
}
|
||||
|
||||
static int atom_get_min_pstate(void)
|
||||
{
|
||||
u64 value;
|
||||
@ -1982,10 +2055,6 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
|
||||
if (hwp_active) {
|
||||
const struct x86_cpu_id *id;
|
||||
|
||||
id = x86_match_cpu(intel_pstate_cpu_ee_disable_ids);
|
||||
if (id)
|
||||
intel_pstate_disable_ee(cpunum);
|
||||
|
||||
intel_pstate_hwp_enable(cpu);
|
||||
|
||||
id = x86_match_cpu(intel_pstate_hwp_boost_ids);
|
||||
@ -2754,7 +2823,12 @@ static int __init intel_pstate_init(void)
|
||||
id = x86_match_cpu(hwp_support_ids);
|
||||
if (id) {
|
||||
copy_cpu_funcs(&core_funcs);
|
||||
if (!no_hwp) {
|
||||
/*
|
||||
* Avoid enabling HWP for processors without EPP support,
|
||||
* because that means incomplete HWP implementation which is a
|
||||
* corner case and supporting it is generally problematic.
|
||||
*/
|
||||
if (!no_hwp && boot_cpu_has(X86_FEATURE_HWP_EPP)) {
|
||||
hwp_active++;
|
||||
hwp_mode_bdw = id->driver_data;
|
||||
intel_pstate.attr = hwp_cpufreq_attrs;
|
||||
@ -2808,8 +2882,17 @@ hwp_cpu_matched:
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
if (hwp_active)
|
||||
if (hwp_active) {
|
||||
const struct x86_cpu_id *id;
|
||||
|
||||
id = x86_match_cpu(intel_pstate_cpu_ee_disable_ids);
|
||||
if (id) {
|
||||
set_power_ctl_ee_state(false);
|
||||
pr_info("Disabling energy efficiency optimization\n");
|
||||
}
|
||||
|
||||
pr_info("HWP enabled\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -22,6 +22,8 @@
|
||||
#include <asm/time.h>
|
||||
#include <asm/smp.h>
|
||||
|
||||
#include <platforms/pasemi/pasemi.h>
|
||||
|
||||
#define SDCASR_REG 0x0100
|
||||
#define SDCASR_REG_STRIDE 0x1000
|
||||
#define SDCPWR_CFGA0_REG 0x0100
|
||||
|
||||
@ -616,7 +616,7 @@ static void __exit pcc_cpufreq_exit(void)
|
||||
free_percpu(pcc_cpu_info);
|
||||
}
|
||||
|
||||
static const struct acpi_device_id processor_device_ids[] = {
|
||||
static const struct acpi_device_id __maybe_unused processor_device_ids[] = {
|
||||
{ACPI_PROCESSOR_OBJECT_HID, },
|
||||
{ACPI_PROCESSOR_DEVICE_HID, },
|
||||
{},
|
||||
|
||||
@ -86,7 +86,7 @@ static u32 convert_fid_to_vco_fid(u32 fid)
|
||||
*/
|
||||
static int pending_bit_stuck(void)
|
||||
{
|
||||
u32 lo, hi;
|
||||
u32 lo, hi __always_unused;
|
||||
|
||||
rdmsr(MSR_FIDVID_STATUS, lo, hi);
|
||||
return lo & MSR_S_LO_CHANGE_PENDING ? 1 : 0;
|
||||
@ -282,7 +282,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data,
|
||||
{
|
||||
u32 rvosteps = data->rvo;
|
||||
u32 savefid = data->currfid;
|
||||
u32 maxvid, lo, rvomult = 1;
|
||||
u32 maxvid, lo __always_unused, rvomult = 1;
|
||||
|
||||
pr_debug("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, reqvid 0x%x, rvo 0x%x\n",
|
||||
smp_processor_id(),
|
||||
|
||||
@ -64,13 +64,14 @@
|
||||
* highest_lpstate_idx
|
||||
* @last_sampled_time: Time from boot in ms when global pstates were
|
||||
* last set
|
||||
* @last_lpstate_idx, Last set value of local pstate and global
|
||||
* last_gpstate_idx pstate in terms of cpufreq table index
|
||||
* @last_lpstate_idx: Last set value of local pstate and global
|
||||
* @last_gpstate_idx: pstate in terms of cpufreq table index
|
||||
* @timer: Is used for ramping down if cpu goes idle for
|
||||
* a long time with global pstate held high
|
||||
* @gpstate_lock: A spinlock to maintain synchronization between
|
||||
* routines called by the timer handler and
|
||||
* governer's target_index calls
|
||||
* @policy: Associated CPUFreq policy
|
||||
*/
|
||||
struct global_pstate_info {
|
||||
int highest_lpstate_idx;
|
||||
@ -85,7 +86,7 @@ struct global_pstate_info {
|
||||
|
||||
static struct cpufreq_frequency_table powernv_freqs[POWERNV_MAX_PSTATES+1];
|
||||
|
||||
DEFINE_HASHTABLE(pstate_revmap, POWERNV_MAX_PSTATES_ORDER);
|
||||
static DEFINE_HASHTABLE(pstate_revmap, POWERNV_MAX_PSTATES_ORDER);
|
||||
/**
|
||||
* struct pstate_idx_revmap_data: Entry in the hashmap pstate_revmap
|
||||
* indexed by a function of pstate id.
|
||||
@ -170,7 +171,7 @@ static inline u8 extract_pstate(u64 pmsr_val, unsigned int shift)
|
||||
|
||||
/* Use following functions for conversions between pstate_id and index */
|
||||
|
||||
/**
|
||||
/*
|
||||
* idx_to_pstate : Returns the pstate id corresponding to the
|
||||
* frequency in the cpufreq frequency table
|
||||
* powernv_freqs indexed by @i.
|
||||
@ -188,7 +189,7 @@ static inline u8 idx_to_pstate(unsigned int i)
|
||||
return powernv_freqs[i].driver_data;
|
||||
}
|
||||
|
||||
/**
|
||||
/*
|
||||
* pstate_to_idx : Returns the index in the cpufreq frequencytable
|
||||
* powernv_freqs for the frequency whose corresponding
|
||||
* pstate id is @pstate.
|
||||
@ -380,7 +381,7 @@ static ssize_t cpuinfo_nominal_freq_show(struct cpufreq_policy *policy,
|
||||
powernv_freqs[powernv_pstate_info.nominal].frequency);
|
||||
}
|
||||
|
||||
struct freq_attr cpufreq_freq_attr_cpuinfo_nominal_freq =
|
||||
static struct freq_attr cpufreq_freq_attr_cpuinfo_nominal_freq =
|
||||
__ATTR_RO(cpuinfo_nominal_freq);
|
||||
|
||||
#define SCALING_BOOST_FREQS_ATTR_INDEX 2
|
||||
@ -660,13 +661,13 @@ static inline void queue_gpstate_timer(struct global_pstate_info *gpstates)
|
||||
/**
|
||||
* gpstate_timer_handler
|
||||
*
|
||||
* @data: pointer to cpufreq_policy on which timer was queued
|
||||
* @t: Timer context used to fetch global pstate info struct
|
||||
*
|
||||
* This handler brings down the global pstate closer to the local pstate
|
||||
* according quadratic equation. Queues a new timer if it is still not equal
|
||||
* to local pstate
|
||||
*/
|
||||
void gpstate_timer_handler(struct timer_list *t)
|
||||
static void gpstate_timer_handler(struct timer_list *t)
|
||||
{
|
||||
struct global_pstate_info *gpstates = from_timer(gpstates, t, timer);
|
||||
struct cpufreq_policy *policy = gpstates->policy;
|
||||
@ -899,7 +900,7 @@ static struct notifier_block powernv_cpufreq_reboot_nb = {
|
||||
.notifier_call = powernv_cpufreq_reboot_notifier,
|
||||
};
|
||||
|
||||
void powernv_cpufreq_work_fn(struct work_struct *work)
|
||||
static void powernv_cpufreq_work_fn(struct work_struct *work)
|
||||
{
|
||||
struct chip *chip = container_of(work, struct chip, throttle);
|
||||
struct cpufreq_policy *policy;
|
||||
|
||||
@ -577,6 +577,20 @@ unsigned int cpufreq_policy_transition_delay_us(struct cpufreq_policy *policy);
|
||||
int cpufreq_register_governor(struct cpufreq_governor *governor);
|
||||
void cpufreq_unregister_governor(struct cpufreq_governor *governor);
|
||||
|
||||
#define cpufreq_governor_init(__governor) \
|
||||
static int __init __governor##_init(void) \
|
||||
{ \
|
||||
return cpufreq_register_governor(&__governor); \
|
||||
} \
|
||||
core_initcall(__governor##_init)
|
||||
|
||||
#define cpufreq_governor_exit(__governor) \
|
||||
static void __exit __governor##_exit(void) \
|
||||
{ \
|
||||
return cpufreq_unregister_governor(&__governor); \
|
||||
} \
|
||||
module_exit(__governor##_exit)
|
||||
|
||||
struct cpufreq_governor *cpufreq_default_governor(void);
|
||||
struct cpufreq_governor *cpufreq_fallback_governor(void);
|
||||
|
||||
|
||||
@ -909,11 +909,7 @@ struct cpufreq_governor *cpufreq_default_governor(void)
|
||||
}
|
||||
#endif
|
||||
|
||||
static int __init sugov_register(void)
|
||||
{
|
||||
return cpufreq_register_governor(&schedutil_gov);
|
||||
}
|
||||
core_initcall(sugov_register);
|
||||
cpufreq_governor_init(schedutil_gov);
|
||||
|
||||
#ifdef CONFIG_ENERGY_MODEL
|
||||
extern bool sched_energy_update;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user