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Commit 0280dde0 authored by Ramakrishna Gottimukkula's avatar Ramakrishna Gottimukkula
Browse files

soc: qcom: Add module parameter to pass cluster CPU IDs 



Add a new module parameter to enable user space to pass
CPU IDs of the cluster for which policy min is to be adjusted.

min_freq_cluster: Takes as input the list of CPU IDs of the
cluster in string format with range, comma separated or both
such as "0-3","0,1,2,3", or "0,1-3".

Change-Id: Ibda7fce87cda99a111183407183fa1a7f8793c28
Signed-off-by: default avatarRamakrishna Gottimukkula <rgottimu@codeaurora.org>
parent eddc683b

drivers/soc/qcom/big_cluster_min_freq_adjust.c

+47 −6
Original line number Diff line number Diff line
@@ -160,13 +160,12 @@ static int enable_big_min_freq_adjust(void) 
	if (p->big_min_freq_on == true)

		return 0;



	INIT_DEFERRABLE_WORK(&p->min_freq_work, cpufreq_min_freq_work);

	if (!cpumask_weight(&p->cluster_cpumask)) {

		pr_err("Cluster CPU IDs not set\n");

		return -EPERM;

	}



	cpumask_clear(&p->cluster_cpumask);

	cpumask_set_cpu(4, &p->cluster_cpumask);

	cpumask_set_cpu(5, &p->cluster_cpumask);

	cpumask_set_cpu(6, &p->cluster_cpumask);

	cpumask_set_cpu(7, &p->cluster_cpumask);

	INIT_DEFERRABLE_WORK(&p->min_freq_work, cpufreq_min_freq_work);



	if (!big_min_down_delay_ms) {

		big_min_down_delay_ms = MIN_DOWN_DELAY_MSEC;
@@ -267,6 +266,48 @@ static const struct kernel_param_ops param_ops_big_min_down_delay_ms = { 
module_param_cb(min_down_delay_ms, &param_ops_big_min_down_delay_ms,

		&big_min_down_delay_ms, 0644);



#define MAX_STR_LEN 16

static char big_min_freq_cluster[MAX_STR_LEN];

static struct kparam_string big_min_freq_cluster_kps = {

	.string = big_min_freq_cluster,

	.maxlen = MAX_STR_LEN,

};



static int set_big_min_freq_cluster(const char *buf,

		const struct kernel_param *kp)

{

	struct big_min_freq_adjust_data *p = &big_min_freq_adjust_data;

	int ret;



	if (p->big_min_freq_on == true) {

		ret = -EPERM;

		goto err;

	}



	ret = param_set_copystring(buf, kp);

	if (ret)

		goto err;



	ret = cpulist_parse(big_min_freq_cluster_kps.string,

			&p->cluster_cpumask);

	if (ret) {

		cpumask_clear(&p->cluster_cpumask);

		goto err;

	}



	return 0;

err:

	pr_err("Unable to set big_min_freq_cluster: %d\n", ret);

	return ret;

}



static const struct kernel_param_ops param_ops_big_min_freq_cluster = {

	.set = set_big_min_freq_cluster,

	.get = param_get_string,

};

module_param_cb(min_freq_cluster, &param_ops_big_min_freq_cluster,

		&big_min_freq_cluster_kps, 0644);



static int __init big_min_freq_adjust_init(void)

{

	big_min_freq_adjust_data.is_init = true;