From: Nipun Gupta <nipun.gupta@amd.com> To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <rafael@kernel.org>, <eric.auger@redhat.com>, <alex.williamson@redhat.com>, <cohuck@redhat.com>, <song.bao.hua@hisilicon.com>, <mchehab+huawei@kernel.org>, <maz@kernel.org>, <f.fainelli@gmail.com>, <jeffrey.l.hugo@gmail.com>, <saravanak@google.com>, <Michael.Srba@seznam.cz>, <mani@kernel.org>, <yishaih@nvidia.com>, <jgg@ziepe.ca>, <jgg@nvidia.com>, <robin.murphy@arm.com>, <will@kernel.org>, <joro@8bytes.org>, <masahiroy@kernel.org>, <ndesaulniers@google.com>, <linux-arm-kernel@lists.infradead.org>, <linux-kbuild@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org> Cc: <okaya@kernel.org>, <harpreet.anand@amd.com>, <nikhil.agarwal@amd.com>, <michal.simek@amd.com>, <git@amd.com>, Nipun Gupta <nipun.gupta@amd.com> Subject: [PATCH 03/19] dt-bindings: bus: add CDX bus controller device tree bindings Date: Tue, 17 Jan 2023 19:11:35 +0530 [thread overview] Message-ID: <20230117134139.1298-4-nipun.gupta@amd.com> (raw) In-Reply-To: <20230117134139.1298-1-nipun.gupta@amd.com> Add device tree bindings for CDX bus controller. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> --- .../bindings/bus/xlnx,cdxbus-controller.yaml | 68 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml diff --git a/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml b/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml new file mode 100644 index 000000000000..b2f186864021 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/xlnx,cdxbus-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD CDX bus controller + +description: | + CDX bus controller for AMD devices is implemented to dynamically + detect CDX bus and devices on these bus using the firmware. + The CDX bus manages multiple FPGA based hardware devices, which + can support network, crypto or any other specialized type of + devices. These FPGA based devices can be added/modified dynamically + on run-time. + + All devices on the CDX bus will have a unique streamid (for IOMMU) + and a unique device ID (for MSI) corresponding to a requestor ID + (one to one associated with the device). The streamid and deviceid + are used to configure SMMU and GIC-ITS respectively. + + iommu-map property is used to define the set of stream ids + corresponding to each device and the associated IOMMU. + + The MSI writes are accompanied by sideband data (Device ID). + The msi-map property is used to associate the devices with the + device ID as well as the associated ITS controller. + + rproc property (xlnx,rproc) is used to identify the remote processor + with which APU (Application Processor Unit) interacts to find out + the bus and device configuration. + +maintainers: + - Nipun Gupta <nipun.gupta@amd.com> + - Nikhil Agarwal <nikhil.agarwal@amd.com> + +properties: + compatible: + const: xlnx,cdxbus-controller + + iommu-map: true + + msi-map: true + + xlnx,rproc: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the remoteproc_r5 rproc node using which APU interacts + with remote processor. + +required: + - compatible + - iommu-map + - msi-map + - xlnx,rproc + +additionalProperties: false + +examples: + - | + cdxbus-controller { + compatible = "xlnx,cdxbus-controller"; + /* define map for RIDs 250-259 */ + iommu-map = <250 &smmu 250 10>; + /* define msi map for RIDs 250-259 */ + msi-map = <250 &its 250 10>; + xlnx,rproc = <&remoteproc_r5>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 25c76cf27f21..b43242546b17 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -966,6 +966,7 @@ AMD CDX BUS DRIVER M: Nipun Gupta <nipun.gupta@amd.com> M: Nikhil Agarwal <nikhil.agarwal@amd.com> S: Maintained +F: Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml F: drivers/bus/cdx/* F: include/linux/cdx/* -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Nipun Gupta <nipun.gupta@amd.com> To: <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>, <rafael@kernel.org>, <eric.auger@redhat.com>, <alex.williamson@redhat.com>, <cohuck@redhat.com>, <song.bao.hua@hisilicon.com>, <mchehab+huawei@kernel.org>, <maz@kernel.org>, <f.fainelli@gmail.com>, <jeffrey.l.hugo@gmail.com>, <saravanak@google.com>, <Michael.Srba@seznam.cz>, <mani@kernel.org>, <yishaih@nvidia.com>, <jgg@ziepe.ca>, <jgg@nvidia.com>, <robin.murphy@arm.com>, <will@kernel.org>, <joro@8bytes.org>, <masahiroy@kernel.org>, <ndesaulniers@google.com>, <linux-arm-kernel@lists.infradead.org>, <linux-kbuild@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org> Cc: <okaya@kernel.org>, <harpreet.anand@amd.com>, <nikhil.agarwal@amd.com>, <michal.simek@amd.com>, <git@amd.com>, Nipun Gupta <nipun.gupta@amd.com> Subject: [PATCH 03/19] dt-bindings: bus: add CDX bus controller device tree bindings Date: Tue, 17 Jan 2023 19:11:35 +0530 [thread overview] Message-ID: <20230117134139.1298-4-nipun.gupta@amd.com> (raw) In-Reply-To: <20230117134139.1298-1-nipun.gupta@amd.com> Add device tree bindings for CDX bus controller. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> --- .../bindings/bus/xlnx,cdxbus-controller.yaml | 68 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml diff --git a/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml b/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml new file mode 100644 index 000000000000..b2f186864021 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/xlnx,cdxbus-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AMD CDX bus controller + +description: | + CDX bus controller for AMD devices is implemented to dynamically + detect CDX bus and devices on these bus using the firmware. + The CDX bus manages multiple FPGA based hardware devices, which + can support network, crypto or any other specialized type of + devices. These FPGA based devices can be added/modified dynamically + on run-time. + + All devices on the CDX bus will have a unique streamid (for IOMMU) + and a unique device ID (for MSI) corresponding to a requestor ID + (one to one associated with the device). The streamid and deviceid + are used to configure SMMU and GIC-ITS respectively. + + iommu-map property is used to define the set of stream ids + corresponding to each device and the associated IOMMU. + + The MSI writes are accompanied by sideband data (Device ID). + The msi-map property is used to associate the devices with the + device ID as well as the associated ITS controller. + + rproc property (xlnx,rproc) is used to identify the remote processor + with which APU (Application Processor Unit) interacts to find out + the bus and device configuration. + +maintainers: + - Nipun Gupta <nipun.gupta@amd.com> + - Nikhil Agarwal <nikhil.agarwal@amd.com> + +properties: + compatible: + const: xlnx,cdxbus-controller + + iommu-map: true + + msi-map: true + + xlnx,rproc: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle to the remoteproc_r5 rproc node using which APU interacts + with remote processor. + +required: + - compatible + - iommu-map + - msi-map + - xlnx,rproc + +additionalProperties: false + +examples: + - | + cdxbus-controller { + compatible = "xlnx,cdxbus-controller"; + /* define map for RIDs 250-259 */ + iommu-map = <250 &smmu 250 10>; + /* define msi map for RIDs 250-259 */ + msi-map = <250 &its 250 10>; + xlnx,rproc = <&remoteproc_r5>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 25c76cf27f21..b43242546b17 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -966,6 +966,7 @@ AMD CDX BUS DRIVER M: Nipun Gupta <nipun.gupta@amd.com> M: Nikhil Agarwal <nikhil.agarwal@amd.com> S: Maintained +F: Documentation/devicetree/bindings/bus/xlnx,cdxbus-controller.yaml F: drivers/bus/cdx/* F: include/linux/cdx/* -- 2.17.1 _______________________________________________ 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:[~2023-01-17 13:42 UTC|newest] Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-01-17 13:41 [PATCH 0/7] add support for CDX bus Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 13:41 ` [PATCH 01/19] bus/cdx: add the cdx bus driver Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 14:07 ` Greg KH 2023-01-17 14:07 ` Greg KH 2023-01-18 10:56 ` Gupta, Nipun 2023-01-18 10:56 ` Gupta, Nipun 2023-01-17 17:21 ` Randy Dunlap 2023-01-17 17:21 ` Randy Dunlap 2023-01-18 10:59 ` Gupta, Nipun 2023-01-18 10:59 ` Gupta, Nipun 2023-01-17 13:41 ` [PATCH 02/19] iommu/arm-smmu-v3: support ops registration for CDX bus Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta [this message] 2023-01-17 13:41 ` [PATCH 03/19] dt-bindings: bus: add CDX bus controller device tree bindings Nipun Gupta 2023-01-17 17:54 ` Krzysztof Kozlowski 2023-01-17 17:54 ` Krzysztof Kozlowski 2023-01-18 12:39 ` Gupta, Nipun 2023-01-18 12:39 ` Gupta, Nipun 2023-01-18 12:43 ` Krzysztof Kozlowski 2023-01-18 12:43 ` Krzysztof Kozlowski 2023-01-19 7:33 ` Gupta, Nipun 2023-01-19 7:33 ` Gupta, Nipun 2023-01-17 13:41 ` [PATCH 04/19] bus/cdx: add MCDI protocol interface for firmware interaction Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 14:08 ` Greg KH 2023-01-17 14:08 ` Greg KH 2023-01-18 10:58 ` Gupta, Nipun 2023-01-18 10:58 ` Gupta, Nipun 2023-01-17 13:41 ` [PATCH 05/19] bus/cdx: add cdx controller Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 14:10 ` Greg KH 2023-01-17 14:10 ` Greg KH 2023-01-18 12:36 ` Gupta, Nipun 2023-01-18 12:36 ` Gupta, Nipun 2023-01-17 13:41 ` [PATCH 06/19] bus/cdx: add rpmsg communication channel for CDX Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 13:41 ` [PATCH 07/19] bus/cdx: add device attributes Nipun Gupta 2023-01-17 13:41 ` Nipun Gupta 2023-01-17 14:13 ` Greg KH 2023-01-17 14:13 ` Greg KH 2023-01-18 13:03 ` Gupta, Nipun 2023-01-18 13:03 ` Gupta, Nipun 2023-01-17 17:47 ` [PATCH 0/7] add support for CDX bus Krzysztof Kozlowski 2023-01-17 17:47 ` Krzysztof Kozlowski
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