// SPDX-License-Identifier: GPL-2.0
/*
* Copyright(C) 2015 Linaro Limited. All rights reserved.
* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
*/
#include <linux/pid_namespace.h>
#include <linux/pm_runtime.h>
#include <linux/sysfs.h>
#include "coresight-etm.h"
#include "coresight-priv.h"
static ssize_t nr_addr_cmp_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long val;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
val = drvdata->nr_addr_cmp;
return sprintf(buf, "%#lx\n", val);
}
static DEVICE_ATTR_RO(nr_addr_cmp);
static ssize_t nr_cntr_show(struct device *dev,
struct device_attribute *attr, char *buf)
{ unsigned long val;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
val = drvdata->nr_cntr;
return sprintf(buf, "%#lx\n", val);
}
static DEVICE_ATTR_RO(nr_cntr);
static ssize_t nr_ctxid_cmp_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long val;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
val = drvdata->nr_ctxid_cmp;
return sprintf(buf, "%#lx\n", val);
}
static DEVICE_ATTR_RO(nr_ctxid_cmp);
static ssize_t etmsr_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
unsigned long flags, val;
struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
pm_runtime_get_sync(dev->parent);
spin_lock_irqsave(&drvdata->spinlock, flags);
CS_UNLOCK(drvdata->base);
val = etm_readl(drvdata, ETMSR);
CS_LOCK(drvdata->base);
spin_unlock_irqrestore(&drvdata->spinlock, flags);
pm_runtime_put(dev->parent);
return sprintf(buf, "%#lx\n", val);
}
static DEVICE_ATTR_RO(etmsr);
static ssize_t reset_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
int i, ret;
unsign