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Commit aa9bff30 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "coresight: tpdm: Support to configure dsb trigger type"

parents 4473dd6a 5292b42f

drivers/hwtracing/coresight/coresight-tpdm.c

+48 −1
Original line number Diff line number Diff line
@@ -212,6 +212,7 @@ struct dsb_dataset { 
	uint32_t		trig_patt_val[TPDM_DSB_MAX_PATT];

	uint32_t		trig_patt_mask[TPDM_DSB_MAX_PATT];

	bool			trig_ts;

	bool			trig_type;

	uint32_t		select_val[TPDM_DSB_MAX_SELECT];

	uint32_t		msr[TPDM_DSB_MAX_MSR];

};
@@ -548,6 +549,13 @@ static void __tpdm_enable_dsb(struct tpdm_drvdata *drvdata) 
		val = val | BIT(1);

	else

		val = val & ~BIT(1);



	/* Set trigger type */

	if (drvdata->dsb->trig_type)

		val = val | BIT(12);

	else

		val = val & ~BIT(12);



	tpdm_writel(drvdata, val, TPDM_DSB_CR);



	val = tpdm_readl(drvdata, TPDM_DSB_CR);
@@ -3315,6 +3323,42 @@ static ssize_t dsb_trig_patt_mask_store(struct device *dev, 
}

static DEVICE_ATTR_RW(dsb_trig_patt_mask);



static ssize_t dsb_trig_type_show(struct device *dev,

				     struct device_attribute *attr,

				     char *buf)

{

	struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent);



	if (!test_bit(TPDM_DS_DSB, drvdata->datasets))

		return -EPERM;



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

			 (unsigned int)drvdata->dsb->trig_type);

}



static ssize_t dsb_trig_type_store(struct device *dev,

				      struct device_attribute *attr,

				      const char *buf,

				      size_t size)

{

	struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent);

	unsigned long val;



	if (kstrtoul(buf, 16, &val))

		return -EINVAL;

	if (!test_bit(TPDM_DS_DSB, drvdata->datasets))

		return -EPERM;



	mutex_lock(&drvdata->lock);

	if (val)

		drvdata->dsb->trig_type = true;

	else

		drvdata->dsb->trig_type = false;

	mutex_unlock(&drvdata->lock);

	return size;

}

static DEVICE_ATTR_RW(dsb_trig_type);



static ssize_t dsb_trig_ts_show(struct device *dev,

				     struct device_attribute *attr,

				     char *buf)
@@ -4141,6 +4185,7 @@ static struct attribute *tpdm_dsb_attrs[] = { 
	&dev_attr_dsb_trig_patt_val.attr,

	&dev_attr_dsb_trig_patt_mask.attr,

	&dev_attr_dsb_trig_ts.attr,

	&dev_attr_dsb_trig_type.attr,

	&dev_attr_dsb_select_val.attr,

	&dev_attr_dsb_msr.attr,

	NULL,
@@ -4256,8 +4301,10 @@ static void tpdm_init_default_data(struct tpdm_drvdata *drvdata) 
	if (test_bit(TPDM_DS_TC, drvdata->datasets))

		drvdata->tc->retrieval_mode = TPDM_MODE_ATB;



	if (test_bit(TPDM_DS_DSB, drvdata->datasets))

	if (test_bit(TPDM_DS_DSB, drvdata->datasets)) {

		drvdata->dsb->trig_ts = true;

		drvdata->dsb->trig_type = false;

	}



	if (test_bit(TPDM_DS_CMB, drvdata->datasets) ||

	    test_bit(TPDM_DS_MCMB, drvdata->datasets))