Commit 182e8c70 authored by James Clark's avatar James Clark Committed by Suzuki K Poulose
Browse files

Coresight: Use coresight_etm_get_trace_id() in traceid_show() 



Use the new API, coresight_etm_get_trace_id, to read the traceid of the ETM
device when call traceid_show via sysfs node.

Signed-off-by: default avatarJames Clark <james.clark@linaro.org>
Reviewed-by: default avatarJames Clark <james.clark@linaro.org>
Signed-off-by: default avatarJie Gan <quic_jiegan@quicinc.com>
Signed-off-by: default avatarSuzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20250303032931.2500935-4-quic_jiegan@quicinc.com
parent c367a89d

drivers/hwtracing/coresight/coresight-etm3x-sysfs.c

+1 −2
Original line number Diff line number Diff line
@@ -1190,10 +1190,9 @@ static DEVICE_ATTR_RO(cpu); 
static ssize_t traceid_show(struct device *dev,

			    struct device_attribute *attr, char *buf)

{

	int trace_id;

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

	int trace_id = coresight_etm_get_trace_id(drvdata->csdev, CS_MODE_SYSFS, NULL);



	trace_id = etm_read_alloc_trace_id(drvdata);

	if (trace_id < 0)

		return trace_id;

drivers/hwtracing/coresight/coresight-etm4x-sysfs.c

+2 −2
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
 * Author: Mathieu Poirier <mathieu.poirier@linaro.org>

 */



#include <linux/coresight.h>

#include <linux/pid_namespace.h>

#include <linux/pm_runtime.h>

#include <linux/sysfs.h>
@@ -2402,10 +2403,9 @@ static ssize_t trctraceid_show(struct device *dev, 
			       struct device_attribute *attr,

			       char *buf)

{

	int trace_id;

	struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);

	int trace_id = coresight_etm_get_trace_id(drvdata->csdev, CS_MODE_SYSFS, NULL);



	trace_id = etm4_read_alloc_trace_id(drvdata);

	if (trace_id < 0)

		return trace_id;