Linux ARM-MSM sub-architecture
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From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: Hao Zhang <quic_hazha@quicinc.com>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Konrad Dybcio <konradybcio@gmail.com>,
	Mike Leach <mike.leach@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Andy Gross <agross@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Jonathan Corbet <corbet@lwn.net>
Cc: Leo Yan <leo.yan@linaro.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	Tingwei Zhang <quic_tingweiz@quicinc.com>,
	Jinlong Mao <quic_jinlmao@quicinc.com>,
	Yuanfang Zhang <quic_yuanfang@quicinc.com>,
	Tao Zhang <quic_taozha@quicinc.com>,
	Trilok Soni <quic_tsoni@quicinc.com>,
	linux-arm-msm@vger.kernel.org,
	Bjorn Andersson <andersson@kernel.org>,
	linux-doc@vger.kernel.org
Subject: Re: [PATCH v1 0/3] Add support to configure Coresight Dummy subunit
Date: Thu, 16 Mar 2023 10:55:27 +0000	[thread overview]
Message-ID: <0db33881-7978-41c9-45e3-63dc2ed7be4f@arm.com> (raw)
In-Reply-To: <20230316032005.6509-1-quic_hazha@quicinc.com>

On 16/03/2023 03:20, Hao Zhang wrote:
> Introduction of Coresight Dummy subunit
> The Coresight Dummy subunit is for Coresight Dummy component, there are some
> specific Coresight devices that HLOS don't have permission to access. Such as

What is HLOS ?

> some TPDMs, they would be configured in NON-HLOS side, but it's necessary to

What is NON-HLOS ?

> build Coresight path for it to debug. So there need driver to register dummy
> devices as Coresight devices.

Build a path for who to debug ? If this is used by some privileged
software, shouldn't that do all of the work ?

Suzuki

> 
> Commit link:
> https://git.codelinaro.org/clo/linux-kernel/coresight/-/tree/coresight-dummy
> 
> Hao Zhang (3):
>    Coresight: Add coresight dummy driver
>    dt-bindings: arm: Add Coresight Dummy Trace YAML schema
>    Documentation: trace: Add documentation for Coresight Dummy Trace
> 
>   .../bindings/arm/qcom,coresight-dummy.yaml    | 129 +++++++++++++
>   .../trace/coresight/coresight-dummy.rst       |  58 ++++++
>   drivers/hwtracing/coresight/Kconfig           |  11 ++
>   drivers/hwtracing/coresight/Makefile          |   1 +
>   drivers/hwtracing/coresight/coresight-dummy.c | 176 ++++++++++++++++++
>   5 files changed, 375 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/arm/qcom,coresight-dummy.yaml
>   create mode 100644 Documentation/trace/coresight/coresight-dummy.rst
>   create mode 100644 drivers/hwtracing/coresight/coresight-dummy.c
> 


  parent reply	other threads:[~2023-03-16 10:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-16  3:20 [PATCH v1 0/3] Add support to configure Coresight Dummy subunit Hao Zhang
2023-03-16  3:20 ` [PATCH v1 1/3] Coresight: Add coresight dummy driver Hao Zhang
2023-03-16  9:32   ` kernel test robot
2023-03-16  3:20 ` [PATCH v1 2/3] dt-bindings: arm: Add Coresight Dummy Trace YAML schema Hao Zhang
2023-03-16 13:53   ` Rob Herring
2023-03-17  8:19     ` Hao Zhang
2023-03-16  3:20 ` [PATCH v1 3/3] Documentation: trace: Add documentation for Coresight Dummy Trace Hao Zhang
2023-03-16 10:55 ` Suzuki K Poulose [this message]
2023-03-17  7:40   ` [PATCH v1 0/3] Add support to configure Coresight Dummy subunit Hao Zhang

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