From: Leo Yan <leo.yan@arm.com>
To: Jie Gan <jie.gan@oss.qualcomm.com>
Cc: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Tingwei Zhang <tingwei.zhang@oss.qualcomm.com>,
Jingyi Wang <jingyi.wang@oss.qualcomm.com>,
Abel Vesa <abel.vesa@oss.qualcomm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@arm.com>,
James Clark <james.clark@linaro.org>,
Yuanfang Zhang <yuanfang.zhang@oss.qualcomm.com>,
Abel Vesa <abelvesa@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, coresight@lists.linaro.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v6 2/5] coresight: tnoc: Bind Aggregator TNOC on the platform bus
Date: Fri, 10 Jul 2026 09:40:07 +0100 [thread overview]
Message-ID: <20260710084007.GI1024232@e132581.arm.com> (raw)
In-Reply-To: <20260710-fix-tracenoc-probe-issue-v6-2-41eb36fef8d9@oss.qualcomm.com>
On Fri, Jul 10, 2026 at 10:39:01AM +0800, Jie Gan wrote:
[...]
> The ATID-unsupported handling keyed off dev_is_amba(), which disabled ATID
> allocation for every platform-bus device. With the Aggregator TNOC now on
> the platform bus, that check would wrongly disable its ATID, even though
> the Aggregator TNOC owns the ATID that tags the whole aggregation path.
> The Interconnect TNOC aggregates trace within its subsystem but carries no
> ATID of its own, because the downstream Aggregator TNOC already owns the
> ATID for the path. So base the check on the "qcom,coresight-itnoc"
> compatible and let every other form allocate a trace ID.
>
> Signed-off-by: Jie Gan <jie.gan@oss.qualcomm.com>
Reviewed-by: Leo Yan <leo.yan@arm.com>
next prev parent reply other threads:[~2026-07-10 8:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-10 2:38 [PATCH v6 0/5] Fix traceNoC probe issue on multiple QCOM platforms Jie Gan
2026-07-10 2:39 ` [PATCH v6 1/5] dt-bindings: arm: coresight-tnoc: Bind on platform bus instead of AMBA Jie Gan
2026-07-10 2:48 ` sashiko-bot
2026-07-10 7:03 ` Krzysztof Kozlowski
2026-07-10 2:39 ` [PATCH v6 2/5] coresight: tnoc: Bind Aggregator TNOC on the platform bus Jie Gan
2026-07-10 2:50 ` sashiko-bot
2026-07-10 8:40 ` Leo Yan [this message]
2026-07-10 2:39 ` [PATCH v6 3/5] arm64: dts: qcom: kaanapali: bind traceNoC " Jie Gan
2026-07-10 2:54 ` sashiko-bot
2026-07-10 9:49 ` Konrad Dybcio
2026-07-10 2:39 ` [PATCH v6 4/5] arm64: dts: qcom: sm8750: " Jie Gan
2026-07-10 9:49 ` Konrad Dybcio
2026-07-10 2:39 ` [PATCH v6 5/5] arm64: dts: qcom: glymur: use Aggregator TNOC compatible Jie Gan
2026-07-10 9:50 ` Konrad Dybcio
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