A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

PM / devfreq: qoslat: add support for multiple clients

Browse source 
Add support for multiple clients in qoslat by maintaining a
list of devices and aggregating across them during updates.

Change-Id: I3e9970b324938eecdd85f3970ba3acc2c5880fdf
Signed-off-by: Amir Vajid <[email protected]>
This commit is contained in:
Amir Vajid 2020-08-10 19:00:28 -07:00
commit a5041de2a6
1 changed files with 28 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

31
drivers/devfreq/devfreq_qcom_qoslat.c
View file

@ -25,21 +25,42 @@ struct qoslat_data {
struct devfreq *df;
struct devfreq_dev_profile profile;
unsigned int qos_level;
struct list_head list;
};
#define QOS_LEVEL_OFF 1
#define QOS_LEVEL_ON 2
static LIST_HEAD(qoslat_list);
static DEFINE_SPINLOCK(qoslat_lock);
static unsigned int agg_qos_level = QOS_LEVEL_OFF;
#define MAX_MSG_LEN 96
static int update_qos_level(struct device *dev, struct qoslat_data *d)
static int update_qos_level(struct device *dev)
{
struct qoslat_data *d;
struct qmp_pkt pkt;
char mbox_msg[MAX_MSG_LEN + 1] = {0};
char *qos_msg = "off";
unsigned int qos_lvl = QOS_LEVEL_OFF;
int ret;
if (d->qos_level == QOS_LEVEL_ON)
spin_lock(&qoslat_lock);
list_for_each_entry(d, &qoslat_list, list)
qos_lvl = max(d->qos_level, qos_lvl);
if (qos_lvl == agg_qos_level) {
spin_unlock(&qoslat_lock);
return 0;
}
agg_qos_level = qos_lvl;
if (agg_qos_level == QOS_LEVEL_ON)
qos_msg = "on";
spin_unlock(&qoslat_lock);
d = dev_get_drvdata(dev);
snprintf(mbox_msg, MAX_MSG_LEN, "{class: ddr, perfmode: %s}", qos_msg);
pkt.size = MAX_MSG_LEN;
@ -70,7 +91,7 @@ static int dev_target(struct device *dev, unsigned long *freq, u32 flags)
d->qos_level = *freq;
return update_qos_level(dev, d);
return update_qos_level(dev);
}
static int dev_get_cur_freq(struct device *dev, unsigned long *freq)
@ -141,6 +162,10 @@ static int devfreq_qcom_qoslat_probe(struct platform_device *pdev)
return ret;
}
spin_lock(&qoslat_lock);
list_add_tail(&d->list, &qoslat_list);
spin_unlock(&qoslat_lock);
return 0;
}