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Message-ID: <20241030093255.26915-3-quic_taozha@quicinc.com>
Date: Wed, 30 Oct 2024 17:32:53 +0800
From: Tao Zhang <quic_taozha@...cinc.com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach
<mike.leach@...aro.org>, James Clark <james.clark@....com>,
Rob Herring
<robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley
<conor+dt@...nel.org>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Leo Yan
<leo.yan@...ux.dev>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>
CC: Tao Zhang <quic_taozha@...cinc.com>, <coresight@...ts.linaro.org>,
<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>
Subject: [PATCH v5 2/4] 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@...cinc.com>
---
drivers/hwtracing/coresight/coresight-tpda.c | 2 +-
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 bfca103f9f84..ad023a2a99d1 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 c13342594278..9311df8538fc 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);
}
--
2.17.1
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