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coresight: Add a helper to check if a device is source

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Since there are a lot of places in the code to check whether the
device is source, add a helper to check it.

Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20241213100731.25914-3-quic_taozha@quicinc.com
This commit is contained in:
Tao Zhang 2024-12-13 18:07:29 +08:00 committed by Suzuki K Poulose
parent 2a0bc21927
commit 62374ce187
2 changed files with 7 additions and 2 deletions
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2
drivers/hwtracing/coresight/coresight-tpda.c
View File

@ -24,7 +24,7 @@ DEFINE_CORESIGHT_DEVLIST(tpda_devs, "tpda");
static bool coresight_device_is_tpdm(struct coresight_device *csdev)
{
return (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&
return (coresight_is_device_source(csdev)) &&
(csdev->subtype.source_subtype ==
CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM);
}

7
include/linux/coresight.h
View File

@ -588,9 +588,14 @@ static inline void csdev_access_write64(struct csdev_access *csa, u64 val, u32 o
}
#endif /* CONFIG_64BIT */
static inline bool coresight_is_device_source(struct coresight_device *csdev)
{
return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE);
}
static inline bool coresight_is_percpu_source(struct coresight_device *csdev)
{
return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&
return csdev && coresight_is_device_source(csdev) &&
(csdev->subtype.source_subtype == CORESIGHT_DEV_SUBTYPE_SOURCE_PROC);
}