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| author | Tao Zhang <quic_taozha@quicinc.com> | 2024-12-13 18:07:29 +0800 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2024-12-13 10:25:14 +0000 |
| commit | 62374ce1876be26b3f33575680e67ca69a59db54 (patch) | |
| tree | 1de43bb8f16e0985caf4120e65875801716a8f12 | |
| parent | 2a0bc219272b7b83916b108b1ec8cc656275e21b (diff) | |
| download | linux-62374ce1876be26b3f33575680e67ca69a59db54.tar.gz linux-62374ce1876be26b3f33575680e67ca69a59db54.tar.bz2 linux-62374ce1876be26b3f33575680e67ca69a59db54.zip | |
coresight: Add a helper to check if a device is source
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
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tpda.c | 2 | ||||
| -rw-r--r-- | include/linux/coresight.h | 7 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c index 4ec676bea1ce..ab94067c0ed3 100644 --- a/drivers/hwtracing/coresight/coresight-tpda.c +++ b/drivers/hwtracing/coresight/coresight-tpda.c @@ -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); } diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 055ce5cd5c44..c50d128e8d93 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -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); } |