From: Suzuki K Poulose <suzuki.poulose@arm.com> To: Rob Herring <robh@kernel.org> Cc: linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Mike Leach <mike.leach@linaro.org>, Anshuman Khandual <anshuman.khandual@arm.com>, Leo Yan <leo.yan@linaro.org>, devicetree@vger.kernel.org Subject: Re: [PATCH v4 15/19] dts: bindings: Document device tree bindings for ETE Date: Mon, 22 Mar 2021 22:49:34 +0000 [thread overview] Message-ID: <e971dde9-5eec-368e-b351-61e7172bbce7@arm.com> (raw) In-Reply-To: <CAL_JsqL6ZQPFqc_Q4A6cB+8d7eGidoFhvJwa_YrZm-Xz7oC6mQ@mail.gmail.com> On 22/03/2021 17:28, Rob Herring wrote: > On Mon, Mar 22, 2021 at 10:53 AM Suzuki K Poulose > <suzuki.poulose@arm.com> wrote: >> >> Hi Rob >> >> On 06/03/2021 21:06, Rob Herring wrote: >>> On Thu, Feb 25, 2021 at 07:35:39PM +0000, Suzuki K Poulose wrote: >>>> Document the device tree bindings for Embedded Trace Extensions. >>>> ETE can be connected to legacy coresight components and thus >>>> could optionally contain a connection graph as described by >>>> the CoreSight bindings. >>>> >>>> Cc: devicetree@vger.kernel.org >>>> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> >>>> Cc: Mike Leach <mike.leach@linaro.org> >>>> Cc: Rob Herring <robh@kernel.org> >>>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> >>>> --- >>>> + out-ports: >>>> + description: | >>>> + Output connections from the ETE to legacy CoreSight trace bus. >>>> + $ref: /schemas/graph.yaml#/properties/port >>> >>> s/port/ports/ >> >> Ok. >> >>> >>> And then you need: >>> >>> properties: >>> port: >>> description: what this port is >>> $ref: /schemas/graph.yaml#/properties/port >> >> Isn't this already covered by the definition of ports ? There are no >> fixed connections for ETE. It is optional and could be connected to >> any legacy CoreSight component. i.e, a "ports" object can have port >> objects inside. > > 'properties/ports' only defines that you have 'port' nodes within it. > >> Given we have defined out-ports as an object "confirming to the ports" >> do we need to describe the individual port nodes ? > > Yes, you have to define what the 'port' nodes are. A port is a data > stream and you should know what your hardware has. What the data > stream is connected to is outside the scope of the binding. Ok, I have included the above changes for the next version. Thanks Suzuki
WARNING: multiple messages have this Message-ID (diff)
From: Suzuki K Poulose <suzuki.poulose@arm.com> To: Rob Herring <robh@kernel.org> Cc: linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Mike Leach <mike.leach@linaro.org>, Anshuman Khandual <anshuman.khandual@arm.com>, Leo Yan <leo.yan@linaro.org>, devicetree@vger.kernel.org Subject: Re: [PATCH v4 15/19] dts: bindings: Document device tree bindings for ETE Date: Mon, 22 Mar 2021 22:49:34 +0000 [thread overview] Message-ID: <e971dde9-5eec-368e-b351-61e7172bbce7@arm.com> (raw) In-Reply-To: <CAL_JsqL6ZQPFqc_Q4A6cB+8d7eGidoFhvJwa_YrZm-Xz7oC6mQ@mail.gmail.com> On 22/03/2021 17:28, Rob Herring wrote: > On Mon, Mar 22, 2021 at 10:53 AM Suzuki K Poulose > <suzuki.poulose@arm.com> wrote: >> >> Hi Rob >> >> On 06/03/2021 21:06, Rob Herring wrote: >>> On Thu, Feb 25, 2021 at 07:35:39PM +0000, Suzuki K Poulose wrote: >>>> Document the device tree bindings for Embedded Trace Extensions. >>>> ETE can be connected to legacy coresight components and thus >>>> could optionally contain a connection graph as described by >>>> the CoreSight bindings. >>>> >>>> Cc: devicetree@vger.kernel.org >>>> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> >>>> Cc: Mike Leach <mike.leach@linaro.org> >>>> Cc: Rob Herring <robh@kernel.org> >>>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> >>>> --- >>>> + out-ports: >>>> + description: | >>>> + Output connections from the ETE to legacy CoreSight trace bus. >>>> + $ref: /schemas/graph.yaml#/properties/port >>> >>> s/port/ports/ >> >> Ok. >> >>> >>> And then you need: >>> >>> properties: >>> port: >>> description: what this port is >>> $ref: /schemas/graph.yaml#/properties/port >> >> Isn't this already covered by the definition of ports ? There are no >> fixed connections for ETE. It is optional and could be connected to >> any legacy CoreSight component. i.e, a "ports" object can have port >> objects inside. > > 'properties/ports' only defines that you have 'port' nodes within it. > >> Given we have defined out-ports as an object "confirming to the ports" >> do we need to describe the individual port nodes ? > > Yes, you have to define what the 'port' nodes are. A port is a data > stream and you should know what your hardware has. What the data > stream is connected to is outside the scope of the binding. Ok, I have included the above changes for the next version. Thanks Suzuki _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-03-22 22:50 UTC|newest] Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-25 19:35 [PATCH v4 00/19] arm64: coresight: Add support for ETE and TRBE Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 01/19] perf: aux: Add flags for the buffer format Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 02/19] perf: aux: Add CoreSight PMU buffer formats Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-16 17:04 ` Mathieu Poirier 2021-03-16 17:04 ` Mathieu Poirier 2021-03-22 12:29 ` Suzuki K Poulose 2021-03-22 12:29 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 03/19] kvm: arm64: Hide system instruction access to Trace registers Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-22 22:21 ` Suzuki K Poulose 2021-03-22 22:21 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 04/19] kvm: arm64: nvhe: Save the SPE context early Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-01 16:32 ` Alexandru Elisei 2021-03-01 16:32 ` Alexandru Elisei 2021-03-02 10:01 ` Suzuki K Poulose 2021-03-02 10:01 ` Suzuki K Poulose 2021-03-02 10:13 ` Marc Zyngier 2021-03-02 10:13 ` Marc Zyngier 2021-03-02 11:00 ` Alexandru Elisei 2021-03-02 11:00 ` Alexandru Elisei 2021-02-25 19:35 ` [PATCH v4 05/19] kvm: arm64: Disable guest access to trace filter controls Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-22 22:24 ` Suzuki K Poulose 2021-03-22 22:24 ` Suzuki K Poulose 2021-03-23 9:16 ` Marc Zyngier 2021-03-23 9:16 ` Marc Zyngier 2021-03-23 9:44 ` Suzuki K Poulose 2021-03-23 9:44 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 06/19] arm64: Add support for trace synchronization barrier Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 07/19] arm64: Add TRBE definitions Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-16 17:46 ` Mathieu Poirier 2021-03-16 17:46 ` Mathieu Poirier 2021-02-25 19:35 ` [PATCH v4 08/19] arm64: kvm: Enable access to TRBE support for host Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-16 17:49 ` Mathieu Poirier 2021-03-16 17:49 ` Mathieu Poirier 2021-02-25 19:35 ` [PATCH v4 09/19] coresight: etm4x: Move ETM to prohibited region for disable Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-08 17:25 ` Mike Leach 2021-03-08 17:25 ` Mike Leach 2021-03-16 19:30 ` Mathieu Poirier 2021-03-16 19:30 ` Mathieu Poirier 2021-03-17 10:44 ` Suzuki K Poulose 2021-03-17 10:44 ` Suzuki K Poulose 2021-03-17 17:09 ` Mathieu Poirier 2021-03-17 17:09 ` Mathieu Poirier 2021-03-22 21:28 ` Mathieu Poirier 2021-03-22 21:28 ` Mathieu Poirier 2021-02-25 19:35 ` [PATCH v4 10/19] coresight: etm-perf: Allow an event to use different sinks Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-08 17:25 ` Mike Leach 2021-03-08 17:25 ` Mike Leach 2021-03-16 20:23 ` Mathieu Poirier 2021-03-16 20:23 ` Mathieu Poirier 2021-03-17 10:47 ` Suzuki K Poulose 2021-03-17 10:47 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 11/19] coresight: Do not scan for graph if none is present Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 12/19] coresight: etm4x: Add support for PE OS lock Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 13/19] coresight: ete: Add support for ETE sysreg access Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 22:33 ` kernel test robot 2021-02-25 22:33 ` kernel test robot 2021-02-25 22:33 ` kernel test robot 2021-02-26 6:25 ` kernel test robot 2021-02-26 6:25 ` kernel test robot 2021-02-25 19:35 ` [PATCH v4 14/19] coresight: ete: Add support for ETE tracing Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 15/19] dts: bindings: Document device tree bindings for ETE Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-06 21:06 ` Rob Herring 2021-03-06 21:06 ` Rob Herring 2021-03-08 17:25 ` Mike Leach 2021-03-08 17:25 ` Mike Leach 2021-03-22 16:53 ` Suzuki K Poulose 2021-03-22 16:53 ` Suzuki K Poulose 2021-03-22 17:28 ` Rob Herring 2021-03-22 17:28 ` Rob Herring 2021-03-22 22:49 ` Suzuki K Poulose [this message] 2021-03-22 22:49 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 16/19] coresight: etm-perf: Handle stale output handles Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-25 19:35 ` [PATCH v4 17/19] coresight: core: Add support for dedicated percpu sinks Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-02-26 6:34 ` kernel test robot 2021-02-26 6:34 ` kernel test robot 2021-02-26 6:34 ` kernel test robot 2021-03-01 13:54 ` Suzuki K Poulose 2021-03-01 13:54 ` Suzuki K Poulose 2021-03-01 13:54 ` Suzuki K Poulose 2021-03-02 10:21 ` Anshuman Khandual 2021-03-02 10:21 ` Anshuman Khandual 2021-03-02 10:21 ` Anshuman Khandual 2021-03-01 14:08 ` [PATCH v4.1 " Suzuki K Poulose 2021-03-01 14:08 ` Suzuki K Poulose 2021-03-08 17:26 ` [PATCH v4 " Mike Leach 2021-03-08 17:26 ` Mike Leach 2021-03-22 16:57 ` Suzuki K Poulose 2021-03-22 16:57 ` Suzuki K Poulose 2021-03-17 19:31 ` Mathieu Poirier 2021-03-17 19:31 ` Mathieu Poirier 2021-02-25 19:35 ` [PATCH v4 18/19] coresight: sink: Add TRBE driver Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose 2021-03-08 17:26 ` Mike Leach 2021-03-08 17:26 ` Mike Leach 2021-03-19 10:30 ` Suzuki K Poulose 2021-03-19 10:30 ` Suzuki K Poulose 2021-03-19 11:55 ` Mike Leach 2021-03-19 11:55 ` Mike Leach 2021-03-22 21:24 ` Mathieu Poirier 2021-03-22 21:24 ` Mathieu Poirier 2021-03-22 23:00 ` Suzuki K Poulose 2021-03-22 23:00 ` Suzuki K Poulose 2021-03-18 18:08 ` Mathieu Poirier 2021-03-18 18:08 ` Mathieu Poirier 2021-03-19 10:34 ` Suzuki K Poulose 2021-03-19 10:34 ` Suzuki K Poulose 2021-03-19 14:47 ` Mathieu Poirier 2021-03-19 14:47 ` Mathieu Poirier 2021-03-19 17:58 ` Mathieu Poirier 2021-03-19 17:58 ` Mathieu Poirier 2021-03-22 21:20 ` Mathieu Poirier 2021-03-22 21:20 ` Mathieu Poirier 2021-02-25 19:35 ` [PATCH v4 19/19] dts: bindings: Document device tree bindings for Arm TRBE Suzuki K Poulose 2021-02-25 19:35 ` Suzuki K Poulose
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