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Coresight: Use coresight_etm_get_trace_id() in traceid_show()

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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: James Clark <james.clark@linaro.org>
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Jie Gan <quic_jiegan@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20250303032931.2500935-4-quic_jiegan@quicinc.com
This commit is contained in:
James Clark 2025-03-03 11:29:24 +08:00 committed by Suzuki K Poulose
parent c367a89dec
commit 182e8c7079
2 changed files with 3 additions and 4 deletions
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3
drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
View File

@ -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;

4
drivers/hwtracing/coresight/coresight-etm4x-sysfs.c
View File

@ -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;