F: drivers/devfreq/
F: include/linux/devfreq.h
F: Documentation/devicetree/bindings/devfreq/
+F: include/trace/events/devfreq.h
DEVICE FREQUENCY EVENT (DEVFREQ-EVENT)
M: Chanwoo Choi <cw00.choi@samsung.com>
if (unlikely(!genpd->set_performance_state))
return -EINVAL;
- if (unlikely(!dev->power.subsys_data ||
- !dev->power.subsys_data->domain_data)) {
- WARN_ON(1);
+ if (WARN_ON(!dev->power.subsys_data ||
+ !dev->power.subsys_data->domain_data))
return -EINVAL;
- }
genpd_lock(genpd);
#endif /* CONFIG_PM_SLEEP */
-static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
- struct gpd_timing_data *td)
+static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev)
{
struct generic_pm_domain_data *gpd_data;
int ret;
goto err_put;
}
- if (td)
- gpd_data->td = *td;
-
gpd_data->base.dev = dev;
gpd_data->td.constraint_changed = true;
gpd_data->td.effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS;
dev_pm_put_subsys_data(dev);
}
-static void __genpd_update_cpumask(struct generic_pm_domain *genpd,
- int cpu, bool set, unsigned int depth)
+static void genpd_update_cpumask(struct generic_pm_domain *genpd,
+ int cpu, bool set, unsigned int depth)
{
struct gpd_link *link;
struct generic_pm_domain *master = link->master;
genpd_lock_nested(master, depth + 1);
- __genpd_update_cpumask(master, cpu, set, depth + 1);
+ genpd_update_cpumask(master, cpu, set, depth + 1);
genpd_unlock(master);
}
cpumask_clear_cpu(cpu, genpd->cpus);
}
-static void genpd_update_cpumask(struct generic_pm_domain *genpd,
- struct device *dev, bool set)
+static void genpd_set_cpumask(struct generic_pm_domain *genpd, int cpu)
+{
+ if (cpu >= 0)
+ genpd_update_cpumask(genpd, cpu, true, 0);
+}
+
+static void genpd_clear_cpumask(struct generic_pm_domain *genpd, int cpu)
+{
+ if (cpu >= 0)
+ genpd_update_cpumask(genpd, cpu, false, 0);
+}
+
+static int genpd_get_cpu(struct generic_pm_domain *genpd, struct device *dev)
{
int cpu;
if (!genpd_is_cpu_domain(genpd))
- return;
+ return -1;
for_each_possible_cpu(cpu) {
- if (get_cpu_device(cpu) == dev) {
- __genpd_update_cpumask(genpd, cpu, set, 0);
- return;
- }
+ if (get_cpu_device(cpu) == dev)
+ return cpu;
}
-}
-static void genpd_set_cpumask(struct generic_pm_domain *genpd,
- struct device *dev)
-{
- genpd_update_cpumask(genpd, dev, true);
-}
-
-static void genpd_clear_cpumask(struct generic_pm_domain *genpd,
- struct device *dev)
-{
- genpd_update_cpumask(genpd, dev, false);
+ return -1;
}
static int genpd_add_device(struct generic_pm_domain *genpd, struct device *dev,
- struct gpd_timing_data *td)
+ struct device *base_dev)
{
struct generic_pm_domain_data *gpd_data;
int ret;
if (IS_ERR_OR_NULL(genpd) || IS_ERR_OR_NULL(dev))
return -EINVAL;
- gpd_data = genpd_alloc_dev_data(dev, td);
+ gpd_data = genpd_alloc_dev_data(dev);
if (IS_ERR(gpd_data))
return PTR_ERR(gpd_data);
+ gpd_data->cpu = genpd_get_cpu(genpd, base_dev);
+
ret = genpd->attach_dev ? genpd->attach_dev(genpd, dev) : 0;
if (ret)
goto out;
genpd_lock(genpd);
- genpd_set_cpumask(genpd, dev);
+ genpd_set_cpumask(genpd, gpd_data->cpu);
dev_pm_domain_set(dev, &genpd->domain);
genpd->device_count++;
int ret;
mutex_lock(&gpd_list_lock);
- ret = genpd_add_device(genpd, dev, NULL);
+ ret = genpd_add_device(genpd, dev, dev);
mutex_unlock(&gpd_list_lock);
return ret;
genpd->device_count--;
genpd->max_off_time_changed = true;
- genpd_clear_cpumask(genpd, dev);
+ genpd_clear_cpumask(genpd, gpd_data->cpu);
dev_pm_domain_set(dev, NULL);
list_del_init(&pdd->list_node);
goto out;
}
- ret = genpd_add_device(genpd, dev, NULL);
+ ret = genpd_add_device(genpd, dev, dev);
out:
mutex_unlock(&gpd_list_lock);
static void genpd_release_dev(struct device *dev)
{
+ of_node_put(dev->of_node);
kfree(dev);
}
genpd_queue_power_off_work(pd);
}
-static int __genpd_dev_pm_attach(struct device *dev, struct device_node *np,
+static int __genpd_dev_pm_attach(struct device *dev, struct device *base_dev,
unsigned int index, bool power_on)
{
struct of_phandle_args pd_args;
struct generic_pm_domain *pd;
int ret;
- ret = of_parse_phandle_with_args(np, "power-domains",
+ ret = of_parse_phandle_with_args(dev->of_node, "power-domains",
"#power-domain-cells", index, &pd_args);
if (ret < 0)
return ret;
mutex_unlock(&gpd_list_lock);
dev_dbg(dev, "%s() failed to find PM domain: %ld\n",
__func__, PTR_ERR(pd));
- return driver_deferred_probe_check_state(dev);
+ return driver_deferred_probe_check_state(base_dev);
}
dev_dbg(dev, "adding to PM domain %s\n", pd->name);
- ret = genpd_add_device(pd, dev, NULL);
+ ret = genpd_add_device(pd, dev, base_dev);
mutex_unlock(&gpd_list_lock);
if (ret < 0) {
"#power-domain-cells") != 1)
return 0;
- return __genpd_dev_pm_attach(dev, dev->of_node, 0, true);
+ return __genpd_dev_pm_attach(dev, dev, 0, true);
}
EXPORT_SYMBOL_GPL(genpd_dev_pm_attach);
if (!dev->of_node)
return NULL;
- /* Deal only with devices using multiple PM domains. */
+ /* Verify that the index is within a valid range. */
num_domains = of_count_phandle_with_args(dev->of_node, "power-domains",
"#power-domain-cells");
- if (num_domains < 2 || index >= num_domains)
+ if (index >= num_domains)
return NULL;
/* Allocate and register device on the genpd bus. */
dev_set_name(virt_dev, "genpd:%u:%s", index, dev_name(dev));
virt_dev->bus = &genpd_bus_type;
virt_dev->release = genpd_release_dev;
+ virt_dev->of_node = of_node_get(dev->of_node);
ret = device_register(virt_dev);
if (ret) {
- kfree(virt_dev);
+ put_device(virt_dev);
return ERR_PTR(ret);
}
/* Try to attach the device to the PM domain at the specified index. */
- ret = __genpd_dev_pm_attach(virt_dev, dev->of_node, index, false);
+ ret = __genpd_dev_pm_attach(virt_dev, dev, index, false);
if (ret < 1) {
device_unregister(virt_dev);
return ret ? ERR_PTR(ret) : NULL;
}
list_for_each_entry(edev, &devfreq_event_list, node) {
- if (!strcmp(edev->desc->name, node->name))
+ if (of_node_name_eq(node, edev->desc->name))
goto out;
}
edev = NULL;
#include <linux/of.h>
#include "governor.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/devfreq.h>
+
static struct class *devfreq_class;
/*
* if is not found. This can happen when both drivers (the governor driver
* and the driver that call devfreq_add_device) are built as modules.
* devfreq_list_lock should be held by the caller. Returns the matched
- * governor's pointer.
+ * governor's pointer or an error pointer.
*/
static struct devfreq_governor *try_then_request_governor(const char *name)
{
/* Restore previous state before return */
mutex_lock(&devfreq_list_lock);
if (err)
- return NULL;
+ return ERR_PTR(err);
governor = find_devfreq_governor(name);
}
queue_delayed_work(devfreq_wq, &devfreq->work,
msecs_to_jiffies(devfreq->profile->polling_ms));
mutex_unlock(&devfreq->lock);
+
+ trace_devfreq_monitor(devfreq);
}
/**
mutex_lock(&devfreq->lock);
if (!devfreq->stop_polling)
queue_delayed_work(devfreq_wq, &devfreq->work,
- msecs_to_jiffies(devfreq->profile->polling_ms));
+ msecs_to_jiffies(devfreq->profile->polling_ms));
}
out:
mutex_unlock(&devfreq->lock);
/**
* devfreq_notifier_call() - Notify that the device frequency requirements
- * has been changed out of devfreq framework.
+ * has been changed out of devfreq framework.
* @nb: the notifier_block (supposed to be devfreq->nb)
* @type: not used
* @devp: not used
mutex_unlock(&devfreq->lock);
err = set_freq_table(devfreq);
if (err < 0)
- goto err_out;
+ goto err_dev;
mutex_lock(&devfreq->lock);
}
goto err_out;
}
- devfreq->trans_table =
- devm_kzalloc(&devfreq->dev,
- array3_size(sizeof(unsigned int),
- devfreq->profile->max_state,
- devfreq->profile->max_state),
- GFP_KERNEL);
+ devfreq->trans_table = devm_kzalloc(&devfreq->dev,
+ array3_size(sizeof(unsigned int),
+ devfreq->profile->max_state,
+ devfreq->profile->max_state),
+ GFP_KERNEL);
+ if (!devfreq->trans_table) {
+ mutex_unlock(&devfreq->lock);
+ err = -ENOMEM;
+ goto err_devfreq;
+ }
+
devfreq->time_in_state = devm_kcalloc(&devfreq->dev,
- devfreq->profile->max_state,
- sizeof(unsigned long),
- GFP_KERNEL);
+ devfreq->profile->max_state,
+ sizeof(unsigned long),
+ GFP_KERNEL);
+ if (!devfreq->time_in_state) {
+ mutex_unlock(&devfreq->lock);
+ err = -ENOMEM;
+ goto err_devfreq;
+ }
+
devfreq->last_stat_updated = jiffies;
srcu_init_notifier_head(&devfreq->transition_notifier_list);
err_init:
mutex_unlock(&devfreq_list_lock);
-
+err_devfreq:
devfreq_remove_device(devfreq);
devfreq = NULL;
err_dev:
struct devfreq *df = to_devfreq(dev);
int ret;
char str_governor[DEVFREQ_NAME_LEN + 1];
- struct devfreq_governor *governor;
+ const struct devfreq_governor *governor, *prev_governor;
ret = sscanf(buf, "%" __stringify(DEVFREQ_NAME_LEN) "s", str_governor);
if (ret != 1)
goto out;
}
}
+ prev_governor = df->governor;
df->governor = governor;
strncpy(df->governor_name, governor->name, DEVFREQ_NAME_LEN);
ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
- if (ret)
+ if (ret) {
dev_warn(dev, "%s: Governor %s not started(%d)\n",
__func__, df->governor->name, ret);
+ df->governor = prev_governor;
+ strncpy(df->governor_name, prev_governor->name,
+ DEVFREQ_NAME_LEN);
+ ret = df->governor->event_handler(df, DEVFREQ_GOV_START, NULL);
+ if (ret) {
+ dev_err(dev,
+ "%s: reverting to Governor %s failed (%d)\n",
+ __func__, df->governor_name, ret);
+ df->governor = NULL;
+ }
+ }
out:
mutex_unlock(&devfreq_list_lock);
*/
if (df->governor->immutable) {
count = scnprintf(&buf[count], DEVFREQ_NAME_LEN,
- "%s ", df->governor_name);
+ "%s ", df->governor_name);
/*
* The devfreq device shows the registered governor except for
* immutable governors such as passive governor .
/**
* devfreq_register_opp_notifier() - Helper function to get devfreq notified
- * for any changes in the OPP availability
- * changes
+ * for any changes in the OPP availability
+ * changes
* @dev: The devfreq user device. (parent of devfreq)
* @devfreq: The devfreq object.
*/
/**
* devfreq_unregister_opp_notifier() - Helper function to stop getting devfreq
- * notified for any changes in the OPP
- * availability changes anymore.
+ * notified for any changes in the OPP
+ * availability changes anymore.
* @dev: The devfreq user device. (parent of devfreq)
* @devfreq: The devfreq object.
*
}
/**
- * devm_ devfreq_register_opp_notifier()
- * - Resource-managed devfreq_register_opp_notifier()
+ * devm_devfreq_register_opp_notifier() - Resource-managed
+ * devfreq_register_opp_notifier()
* @dev: The devfreq user device. (parent of devfreq)
* @devfreq: The devfreq object.
*/
EXPORT_SYMBOL(devm_devfreq_register_opp_notifier);
/**
- * devm_devfreq_unregister_opp_notifier()
- * - Resource-managed devfreq_unregister_opp_notifier()
+ * devm_devfreq_unregister_opp_notifier() - Resource-managed
+ * devfreq_unregister_opp_notifier()
* @dev: The devfreq user device. (parent of devfreq)
* @devfreq: The devfreq object.
*/
* @list: DEVFREQ_TRANSITION_NOTIFIER.
*/
int devfreq_register_notifier(struct devfreq *devfreq,
- struct notifier_block *nb,
- unsigned int list)
+ struct notifier_block *nb,
+ unsigned int list)
{
int ret = 0;
* @list: DEVFREQ_TRANSITION_NOTIFIER.
*/
void devm_devfreq_unregister_notifier(struct device *dev,
- struct devfreq *devfreq,
- struct notifier_block *nb,
- unsigned int list)
+ struct devfreq *devfreq,
+ struct notifier_block *nb,
+ unsigned int list)
{
WARN_ON(devres_release(dev, devm_devfreq_notifier_release,
devm_devfreq_dev_match, devfreq));
if (!ppmu_events[i].name)
continue;
- if (!of_node_cmp(node->name, ppmu_events[i].name))
+ if (of_node_name_eq(node, ppmu_events[i].name))
break;
}
#include <linux/list.h>
#include <linux/of.h>
+#include <soc/rockchip/rk3399_grf.h>
+
#define RK3399_DMC_NUM_CH 2
/* DDRMON_CTRL */
#define DDRMON_CH1_COUNT_NUM 0x3c
#define DDRMON_CH1_DFI_ACCESS_NUM 0x40
-/* pmu grf */
-#define PMUGRF_OS_REG2 0x308
-#define DDRTYPE_SHIFT 13
-#define DDRTYPE_MASK 7
-
-enum {
- DDR3 = 3,
- LPDDR3 = 6,
- LPDDR4 = 7,
- UNUSED = 0xFF
-};
-
struct dmc_usage {
u32 access;
u32 total;
u32 ddr_type;
/* get ddr type */
- regmap_read(info->regmap_pmu, PMUGRF_OS_REG2, &val);
- ddr_type = (val >> DDRTYPE_SHIFT) & DDRTYPE_MASK;
+ regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val);
+ ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) &
+ RK3399_PMUGRF_DDRTYPE_MASK;
/* clear DDRMON_CTRL setting */
writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL);
/* set ddr type to dfi */
- if (ddr_type == LPDDR3)
+ if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3)
writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL);
- else if (ddr_type == LPDDR4)
+ else if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4)
writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL);
/* enable count, use software mode */
if (IS_ERR(data->clk)) {
dev_err(dev, "Cannot get the clk dmc_clk\n");
return PTR_ERR(data->clk);
- };
+ }
/* try to find the optional reference to the pmu syscon */
node = of_parse_phandle(np, "rockchip,pmu", 0);
return ret;
}
+static void exynos_bus_shutdown(struct platform_device *pdev)
+{
+ struct exynos_bus *bus = dev_get_drvdata(&pdev->dev);
+
+ devfreq_suspend_device(bus->devfreq);
+}
+
#ifdef CONFIG_PM_SLEEP
static int exynos_bus_resume(struct device *dev)
{
static struct platform_driver exynos_bus_platdrv = {
.probe = exynos_bus_probe,
+ .shutdown = exynos_bus_shutdown,
.driver = {
.name = "exynos-bus",
.pm = &exynos_bus_pm,
#include <linux/devfreq.h>
#include <linux/devfreq-event.h>
#include <linux/interrupt.h>
+#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
+#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/rwsem.h>
#include <linux/suspend.h>
+#include <soc/rockchip/rk3399_grf.h>
#include <soc/rockchip/rockchip_sip.h>
struct dram_timing {
struct mutex lock;
struct dram_timing timing;
struct regulator *vdd_center;
+ struct regmap *regmap_pmu;
unsigned long rate, target_rate;
unsigned long volt, target_volt;
+ unsigned int odt_dis_freq;
+ int odt_pd_arg0, odt_pd_arg1;
};
static int rk3399_dmcfreq_target(struct device *dev, unsigned long *freq,
struct dev_pm_opp *opp;
unsigned long old_clk_rate = dmcfreq->rate;
unsigned long target_volt, target_rate;
+ struct arm_smccc_res res;
+ bool odt_enable = false;
int err;
opp = devfreq_recommended_opp(dev, freq, flags);
mutex_lock(&dmcfreq->lock);
+ if (target_rate >= dmcfreq->odt_dis_freq)
+ odt_enable = true;
+
+ /*
+ * This makes a SMC call to the TF-A to set the DDR PD (power-down)
+ * timings and to enable or disable the ODT (on-die termination)
+ * resistors.
+ */
+ arm_smccc_smc(ROCKCHIP_SIP_DRAM_FREQ, dmcfreq->odt_pd_arg0,
+ dmcfreq->odt_pd_arg1,
+ ROCKCHIP_SIP_CONFIG_DRAM_SET_ODT_PD,
+ odt_enable, 0, 0, 0, &res);
+
/*
* If frequency scaling from low to high, adjust voltage first.
* If frequency scaling from high to low, adjust frequency first.
{
struct arm_smccc_res res;
struct device *dev = &pdev->dev;
- struct device_node *np = pdev->dev.of_node;
+ struct device_node *np = pdev->dev.of_node, *node;
struct rk3399_dmcfreq *data;
int ret, index, size;
uint32_t *timing;
struct dev_pm_opp *opp;
+ u32 ddr_type;
+ u32 val;
data = devm_kzalloc(dev, sizeof(struct rk3399_dmcfreq), GFP_KERNEL);
if (!data)
dev_err(dev, "Cannot get the clk dmc_clk\n");
return PTR_ERR(data->dmc_clk);
- };
+ }
data->edev = devfreq_event_get_edev_by_phandle(dev, 0);
if (IS_ERR(data->edev))
}
}
+ node = of_parse_phandle(np, "rockchip,pmu", 0);
+ if (node) {
+ data->regmap_pmu = syscon_node_to_regmap(node);
+ if (IS_ERR(data->regmap_pmu))
+ return PTR_ERR(data->regmap_pmu);
+ }
+
+ regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val);
+ ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) &
+ RK3399_PMUGRF_DDRTYPE_MASK;
+
+ switch (ddr_type) {
+ case RK3399_PMUGRF_DDRTYPE_DDR3:
+ data->odt_dis_freq = data->timing.ddr3_odt_dis_freq;
+ break;
+ case RK3399_PMUGRF_DDRTYPE_LPDDR3:
+ data->odt_dis_freq = data->timing.lpddr3_odt_dis_freq;
+ break;
+ case RK3399_PMUGRF_DDRTYPE_LPDDR4:
+ data->odt_dis_freq = data->timing.lpddr4_odt_dis_freq;
+ break;
+ default:
+ return -EINVAL;
+ };
+
arm_smccc_smc(ROCKCHIP_SIP_DRAM_FREQ, 0, 0,
ROCKCHIP_SIP_CONFIG_DRAM_INIT,
0, 0, 0, 0, &res);
+ /*
+ * In TF-A there is a platform SIP call to set the PD (power-down)
+ * timings and to enable or disable the ODT (on-die termination).
+ * This call needs three arguments as follows:
+ *
+ * arg0:
+ * bit[0-7] : sr_idle
+ * bit[8-15] : sr_mc_gate_idle
+ * bit[16-31] : standby idle
+ * arg1:
+ * bit[0-11] : pd_idle
+ * bit[16-27] : srpd_lite_idle
+ * arg2:
+ * bit[0] : odt enable
+ */
+ data->odt_pd_arg0 = (data->timing.sr_idle & 0xff) |
+ ((data->timing.sr_mc_gate_idle & 0xff) << 8) |
+ ((data->timing.standby_idle & 0xffff) << 16);
+ data->odt_pd_arg1 = (data->timing.pd_idle & 0xfff) |
+ ((data->timing.srpd_lite_idle & 0xfff) << 16);
+
/*
* We add a devfreq driver to our parent since it has a device tree node
* with operating points.
static int tegra_governor_event_handler(struct devfreq *devfreq,
unsigned int event, void *data)
{
- struct tegra_devfreq *tegra;
- int ret = 0;
-
- tegra = dev_get_drvdata(devfreq->dev.parent);
+ struct tegra_devfreq *tegra = dev_get_drvdata(devfreq->dev.parent);
switch (event) {
case DEVFREQ_GOV_START:
break;
}
- return ret;
+ return 0;
}
static struct devfreq_governor tegra_devfreq_governor = {
struct pm_domain_data base;
struct gpd_timing_data td;
struct notifier_block nb;
+ int cpu;
unsigned int performance_state;
void *data;
};
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Rockchip General Register Files definitions
+ *
+ * Copyright (c) 2018, Collabora Ltd.
+ * Author: Enric Balletbo i Serra <enric.balletbo@collabora.com>
+ */
+
+#ifndef __SOC_RK3399_GRF_H
+#define __SOC_RK3399_GRF_H
+
+/* PMU GRF Registers */
+#define RK3399_PMUGRF_OS_REG2 0x308
+#define RK3399_PMUGRF_DDRTYPE_SHIFT 13
+#define RK3399_PMUGRF_DDRTYPE_MASK 7
+#define RK3399_PMUGRF_DDRTYPE_DDR3 3
+#define RK3399_PMUGRF_DDRTYPE_LPDDR2 5
+#define RK3399_PMUGRF_DDRTYPE_LPDDR3 6
+#define RK3399_PMUGRF_DDRTYPE_LPDDR4 7
+
+#endif
#define ROCKCHIP_SIP_CONFIG_DRAM_GET_RATE 0x05
#define ROCKCHIP_SIP_CONFIG_DRAM_CLR_IRQ 0x06
#define ROCKCHIP_SIP_CONFIG_DRAM_SET_PARAM 0x07
+#define ROCKCHIP_SIP_CONFIG_DRAM_SET_ODT_PD 0x08
#endif
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM devfreq
+
+#if !defined(_TRACE_DEVFREQ_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_DEVFREQ_H
+
+#include <linux/devfreq.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(devfreq_monitor,
+ TP_PROTO(struct devfreq *devfreq),
+
+ TP_ARGS(devfreq),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, freq)
+ __field(unsigned long, busy_time)
+ __field(unsigned long, total_time)
+ __field(unsigned int, polling_ms)
+ __string(dev_name, dev_name(&devfreq->dev))
+ ),
+
+ TP_fast_assign(
+ __entry->freq = devfreq->previous_freq;
+ __entry->busy_time = devfreq->last_status.busy_time;
+ __entry->total_time = devfreq->last_status.total_time;
+ __entry->polling_ms = devfreq->profile->polling_ms;
+ __assign_str(dev_name, dev_name(&devfreq->dev));
+ ),
+
+ TP_printk("dev_name=%s freq=%lu polling_ms=%u load=%lu",
+ __get_str(dev_name), __entry->freq, __entry->polling_ms,
+ __entry->total_time == 0 ? 0 :
+ (100 * __entry->busy_time) / __entry->total_time)
+);
+#endif /* _TRACE_DEVFREQ_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
projects / linux.git / commitdiff