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Commit b2f356cc authored by Mohammed Nayeem Ur Rahman's avatar Mohammed Nayeem Ur Rahman
Browse files

adsprpc: set QoS only to silver cluster 



Glink IRQ mostly is taken by the silver cluster. RPC driver vote
for sliver cluster prevents collapsing gold cluster. This saves
significant power.

Change-Id: Ic24bddceb7ae37d1182d2fca683c622b4ab71a55
Acked-by: default avatarTadakamalla Krishnaiah <ktadakam@qti.qualcomm.com>
Signed-off-by: default avatarMohammed Nayeem Ur Rahman <mohara@codeaurora.org>
parent 3918cbe1

drivers/char/adsprpc.c

+51 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 
#include <linux/debugfs.h>

#include <linux/pm_qos.h>

#include <linux/stat.h>

#include <linux/cpumask.h>



#define CREATE_TRACE_POINTS

#include <trace/events/fastrpc.h>
@@ -224,6 +225,11 @@ struct secure_vm { 
	int vmcount;

};



struct qos_cores {

	int *coreno;

	int corecount;

};



struct fastrpc_file;



struct fastrpc_buf {
@@ -370,6 +376,7 @@ struct fastrpc_apps { 
	/* Unique job id for each message */

	uint64_t jobid[NUM_CHANNELS];

	struct wakeup_source *wake_source;

	struct qos_cores silvercores;

};



struct fastrpc_mmap {
@@ -3954,6 +3961,9 @@ static int fastrpc_internal_control(struct fastrpc_file *fl, 
{

	int err = 0;

	unsigned int latency;

	cpumask_t mask;

	struct fastrpc_apps *me = &gfa;

	u32 len = me->silvercores.corecount, i = 0;



	VERIFY(err, !IS_ERR_OR_NULL(fl) && !IS_ERR_OR_NULL(fl->apps));

	if (err)
@@ -3969,6 +3979,12 @@ static int fastrpc_internal_control(struct fastrpc_file *fl, 
		VERIFY(err, latency != 0);

		if (err)

			goto bail;

		cpumask_clear(&mask);

		for (i = 0; i < len; i++)

			cpumask_set_cpu(me->silvercores.coreno[i], &mask);

		fl->pm_qos_req.type = PM_QOS_REQ_AFFINE_CORES;

		cpumask_copy(&fl->pm_qos_req.cpus_affine, &mask);



		if (!fl->qos_request) {

			pm_qos_add_request(&fl->pm_qos_req,

				PM_QOS_CPU_DMA_LATENCY, latency);
@@ -4580,6 +4596,39 @@ static void init_secure_vmid_list(struct device *dev, char *prop_name, 
	}

}



static void init_qos_cores_list(struct device *dev, char *prop_name,

						struct qos_cores *silvercores)

{

	int err = 0;

	u32 len = 0, i = 0;

	u32 *coreslist = NULL;



	if (!of_find_property(dev->of_node, prop_name, &len))

		goto bail;

	if (len == 0)

		goto bail;

	len /= sizeof(u32);

	VERIFY(err, NULL != (coreslist = kcalloc(len, sizeof(u32),

						 GFP_KERNEL)));

	if (err)

		goto bail;

	for (i = 0; i < len; i++) {

		err = of_property_read_u32_index(dev->of_node, prop_name, i,

								&coreslist[i]);

		if (err) {

			pr_err("adsprpc: %s: failed to read QOS cores list\n",

								 __func__);

			goto bail;

		}

	}

	silvercores->coreno = coreslist;

	silvercores->corecount = len;

bail:

	if (err) {

		kfree(coreslist);

	}

}



static void configure_secure_channels(uint32_t secure_domains)

{

	struct fastrpc_apps *me = &gfa;
@@ -4617,6 +4666,8 @@ static int fastrpc_probe(struct platform_device *pdev) 
					"qcom,msm-fastrpc-compute")) {

		init_secure_vmid_list(dev, "qcom,adsp-remoteheap-vmid",

							&gcinfo[0].rhvm);

		init_qos_cores_list(dev, "qcom,qos-cores",

							&me->silvercores);





		of_property_read_u32(dev->of_node, "qcom,rpc-latency-us",