diff options
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm3x.c | 8 | ||||
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x.c | 8 | ||||
| -rw-r--r-- | include/linux/coresight.h | 3 |
3 files changed, 19 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c index 5981fcc69960..aae80e14508d 100644 --- a/drivers/hwtracing/coresight/coresight-etm3x.c +++ b/drivers/hwtracing/coresight/coresight-etm3x.c @@ -315,6 +315,13 @@ static void etm_enable_hw(void *info) dev_dbg(drvdata->dev, "cpu: %d enable smp call done\n", drvdata->cpu); } +static int etm_cpu_id(struct coresight_device *csdev) +{ + struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); + + return drvdata->cpu; +} + static int etm_trace_id(struct coresight_device *csdev) { struct etm_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); @@ -421,6 +428,7 @@ static void etm_disable(struct coresight_device *csdev) } static const struct coresight_ops_source etm_source_ops = { + .cpu_id = etm_cpu_id, .trace_id = etm_trace_id, .enable = etm_enable, .disable = etm_disable, diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c index 167004f9c42b..b6ae9cb6ff57 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.c +++ b/drivers/hwtracing/coresight/coresight-etm4x.c @@ -63,6 +63,13 @@ static bool etm4_arch_supported(u8 arch) return true; } +static int etm4_cpu_id(struct coresight_device *csdev) +{ + struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); + + return drvdata->cpu; +} + static int etm4_trace_id(struct coresight_device *csdev) { struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); @@ -262,6 +269,7 @@ static void etm4_disable(struct coresight_device *csdev) } static const struct coresight_ops_source etm4_source_ops = { + .cpu_id = etm4_cpu_id, .trace_id = etm4_trace_id, .enable = etm4_enable, .disable = etm4_disable, diff --git a/include/linux/coresight.h b/include/linux/coresight.h index a7cabfa23b55..bf62b265bf52 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -205,12 +205,15 @@ struct coresight_ops_link { /** * struct coresight_ops_source - basic operations for a source * Operations available for sources. + * @cpu_id: returns the value of the CPU number this component + * is associated to. * @trace_id: returns the value of the component's trace ID as known to the HW. * @enable: enables tracing for a source. * @disable: disables tracing for a source. */ struct coresight_ops_source { + int (*cpu_id)(struct coresight_device *csdev); int (*trace_id)(struct coresight_device *csdev); int (*enable)(struct coresight_device *csdev); void (*disable)(struct coresight_device *csdev); |