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Commit 42fff7f7 authored by Aman Mehta's avatar Aman Mehta
Browse files

msmperf: per cluster node for curr cap and top-app 



Adding support for current capacity and current top
app load with cluster wise support.This data will be
utilised in user space for performace tuning on games.

Change-Id: I052e7ae2e58ebe57bff3bfeb0fc321da2cad1b3e
Signed-off-by: default avatarAman Mehta <amanmeht@codeaurora.org>
parent db92782e

drivers/soc/qcom/msm_performance.c

+58 −6
Original line number Diff line number Diff line
@@ -24,7 +24,15 @@ 
 * will collect the data for 15 windows(300ms) and then update

 * sysfs nodes with aggregated data

 */

#define POLL_INT 15

#define POLL_INT 25

#define NODE_NAME_MAX_CHARS 16



enum cpu_clusters {

	MIN = 0,

	MID = 1,

	MAX = 2,

	CLUSTER_MAX

};



/* To handle cpufreq min/max request */

struct cpu_status {
@@ -43,6 +51,8 @@ static struct task_struct *events_notify_thread; 


static unsigned int aggr_big_nr;

static unsigned int aggr_top_load;

static unsigned int top_load[CLUSTER_MAX];

static unsigned int curr_cap[CLUSTER_MAX];



/*******************************sysfs start************************************/

static int set_cpu_min_freq(const char *buf, const struct kernel_param *kp)
@@ -211,7 +221,8 @@ static struct attribute_group events_attr_group = { 
};



static ssize_t show_big_nr(struct kobject *kobj,

	struct kobj_attribute *attr, char *buf)

			   struct kobj_attribute *attr,

			   char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%u\n", aggr_big_nr);

}
@@ -220,7 +231,8 @@ static struct kobj_attribute big_nr_attr = 
__ATTR(aggr_big_nr, 0444, show_big_nr, NULL);



static ssize_t show_top_load(struct kobject *kobj,

	struct kobj_attribute *attr, char *buf)

				 struct kobj_attribute *attr,

				 char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%u\n", aggr_top_load);

}
@@ -229,9 +241,35 @@ static struct kobj_attribute top_load_attr = 
__ATTR(aggr_top_load, 0444, show_top_load, NULL);





static ssize_t show_top_load_cluster(struct kobject *kobj,

				 struct kobj_attribute *attr,

				 char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%u %u %u\n",

					top_load[MIN], top_load[MID],

					top_load[MAX]);

}



static struct kobj_attribute cluster_top_load_attr =

__ATTR(top_load_cluster, 0444, show_top_load_cluster, NULL);



static ssize_t show_curr_cap_cluster(struct kobject *kobj,

				 struct kobj_attribute *attr,

				 char *buf)

{

	return snprintf(buf, PAGE_SIZE, "%u %u %u\n",

					curr_cap[MIN], curr_cap[MID],

					curr_cap[MAX]);

}



static struct kobj_attribute cluster_curr_cap_attr =

__ATTR(curr_cap_cluster, 0444, show_curr_cap_cluster, NULL);



static struct attribute *notify_attrs[] = {

	&big_nr_attr.attr,

	&top_load_attr.attr,

	&cluster_top_load_attr.attr,

	&cluster_curr_cap_attr.attr,

	NULL,

};
@@ -381,6 +419,8 @@ static void nr_notify_userspace(struct work_struct *work) 
{

	sysfs_notify(notify_kobj, NULL, "aggr_top_load");

	sysfs_notify(notify_kobj, NULL, "aggr_big_nr");

	sysfs_notify(notify_kobj, NULL, "top_load_cluster");

	sysfs_notify(notify_kobj, NULL, "curr_cap_cluster");

}



static int msm_perf_core_ctl_notify(struct notifier_block *nb,
@@ -388,16 +428,28 @@ static int msm_perf_core_ctl_notify(struct notifier_block *nb, 
					void *data)

{

	static unsigned int tld, nrb, i;

	static unsigned int top_ld[CLUSTER_MAX], curr_cp[CLUSTER_MAX];

	static DECLARE_WORK(sysfs_notify_work, nr_notify_userspace);

	struct core_ctl_notif_data *d = data;



	int cluster = 0;



	nrb += d->nr_big;

	tld += d->coloc_load_pct;

	for (cluster = 0; cluster < CLUSTER_MAX; cluster++) {

		top_ld[cluster] += d->ta_util_pct[cluster];

		curr_cp[cluster] += d->cur_cap_pct[cluster];

	}

	i++;

	if (i == POLL_INT) {

		aggr_big_nr = ((nrb%POLL_INT) ? 1 : 0) + nrb/POLL_INT;

		aggr_top_load = tld/POLL_INT;

		for (cluster = 0; cluster < CLUSTER_MAX; cluster++) {

			top_load[cluster] = top_ld[cluster]/POLL_INT;

			curr_cap[cluster] = curr_cp[cluster]/POLL_INT;

			top_ld[cluster] = 0;

			curr_cp[cluster] = 0;

		}

		//reset Counters

		tld = 0;

		nrb = 0;

		i = 0;