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>, <puneet.gupta@amd.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>, <kvm@vger.kernel.org>
Cc: <okaya@kernel.org>, <harpreet.anand@amd.com>,
<nikhil.agarwal@amd.com>, <michal.simek@amd.com>,
<aleksandar.radovanovic@amd.com>, <git@amd.com>,
Nipun Gupta <nipun.gupta@amd.com>
Subject: [RFC PATCH v4 1/8] dt-bindings: bus: add CDX bus device tree bindings
Date: Fri, 14 Oct 2022 10:10:42 +0530 [thread overview]
Message-ID: <20221014044049.2557085-2-nipun.gupta@amd.com> (raw)
In-Reply-To: <20221014044049.2557085-1-nipun.gupta@amd.com>
This patch adds a devicetree binding documentation for CDX
bus.
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
---
.../devicetree/bindings/bus/xlnx,cdx.yaml | 65 +++++++++++++++++++
MAINTAINERS | 6 ++
2 files changed, 71 insertions(+)
create mode 100644 Documentation/devicetree/bindings/bus/xlnx,cdx.yaml
diff --git a/Documentation/devicetree/bindings/bus/xlnx,cdx.yaml b/Documentation/devicetree/bindings/bus/xlnx,cdx.yaml
new file mode 100644
index 000000000000..984ff65b668a
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/xlnx,cdx.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/xlnx,cdx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AMD CDX bus controller
+
+description: |
+ CDX bus controller detects CDX devices using CDX firmware and
+ add those to cdx bus. 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.
+
+maintainers:
+ - Nipun Gupta <nipun.gupta@amd.com>
+ - Nikhil Agarwal <nikhil.agarwal@amd.com>
+
+properties:
+ compatible:
+ const: xlnx,cdxbus-controller-1.0
+
+ reg:
+ maxItems: 1
+
+ iommu-map: true
+
+ msi-map: true
+
+required:
+ - compatible
+ - reg
+ - iommu-map
+ - msi-map
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cdx: cdx@4000000 {
+ compatible = "xlnx,cdxbus-controller-1.0";
+ reg = <0x00000000 0x04000000 0 0x1000>;
+ /* 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>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index f5ca4aefd184..5f48f11fe0c3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -935,6 +935,12 @@ S: Supported
F: drivers/crypto/ccp/
F: include/linux/ccp.h
+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,cdx.yaml
+
AMD CRYPTOGRAPHIC COPROCESSOR (CCP) DRIVER - SEV SUPPORT
M: Brijesh Singh <brijesh.singh@amd.com>
M: Tom Lendacky <thomas.lendacky@amd.com>
--
2.25.1
next prev parent reply other threads:[~2022-10-14 4:41 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-03 12:26 [RFC PATCH 0/2] add support for CDX bus MSI domain Nipun Gupta
2022-08-03 12:26 ` [RFC PATCH 1/2] irqchip: cdx-bus: add cdx-MSI domain with gic-its domain as parent Nipun Gupta
2022-08-03 12:33 ` Greg KH
2022-08-03 12:37 ` Gupta, Nipun
2022-08-04 8:49 ` Marc Zyngier
2022-08-04 9:18 ` Gupta, Nipun
[not found] ` <87mtckwaxa.wl-maz@kernel.org>
2022-08-04 12:11 ` Gupta, Nipun
2022-08-03 12:26 ` [RFC PATCH 2/2] driver core: add compatible string in sysfs for platform devices Nipun Gupta
2022-08-03 12:31 ` Greg KH
2022-08-03 12:46 ` Gupta, Nipun
2022-08-03 14:16 ` [RFC PATCH 0/2] add support for CDX bus MSI domain Robin Murphy
2022-08-04 4:23 ` Gupta, Nipun
2022-08-17 16:00 ` Jason Gunthorpe
2022-08-17 15:05 ` [RFC PATCH v2 0/6] add support for CDX bus controller Nipun Gupta
2022-08-17 15:05 ` [RFC PATCH v2 1/6] Documentation: DT: Add entry for CDX controller Nipun Gupta
2022-08-18 9:54 ` Krzysztof Kozlowski
2022-08-18 9:59 ` Krzysztof Kozlowski
2022-09-05 14:05 ` Gupta, Nipun
2022-09-06 6:55 ` Krzysztof Kozlowski
2022-09-06 7:03 ` Gupta, Nipun
2022-09-06 7:20 ` Krzysztof Kozlowski
2022-08-17 15:05 ` [RFC PATCH v2 2/6] bus/cdx: add the cdx bus driver Nipun Gupta
2022-08-17 15:32 ` Greg KH
2022-08-17 15:46 ` Marc Zyngier
2022-08-22 13:21 ` Gupta, Nipun
2022-08-22 13:29 ` Greg KH
2022-08-24 8:50 ` Gupta, Nipun
2022-08-24 12:11 ` Greg KH
2022-08-24 23:31 ` Jason Gunthorpe
2022-08-25 18:38 ` Saravana Kannan
2022-08-25 19:57 ` Robin Murphy
2022-08-26 0:08 ` Jason Gunthorpe
2022-08-29 4:49 ` Gupta, Nipun
2022-08-29 4:49 ` Gupta, Nipun
2022-08-29 15:31 ` Jason Gunthorpe
2022-08-30 7:06 ` Gupta, Nipun
2022-08-30 11:25 ` Robin Murphy
2022-08-30 13:01 ` Jason Gunthorpe
2022-08-30 13:12 ` Gupta, Nipun
2022-08-17 15:05 ` [RFC PATCH v2 3/6] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta
2022-08-17 15:33 ` Greg KH
2022-08-17 15:05 ` [RFC PATCH v2 4/6] bus/cdx: add rescan and reset support Nipun Gupta
2022-08-17 15:05 ` [RFC PATCH v2 5/6] vfio: platform: reset: add reset for cdx devices Nipun Gupta
2022-08-17 15:05 ` [RFC PATCH v2 6/6] driver core: add compatible string in sysfs for platform devices Nipun Gupta
2022-08-17 15:30 ` Greg KH
2022-08-17 16:04 ` Saravana Kannan
2022-09-05 13:54 ` Gupta, Nipun
2022-09-06 13:47 ` [RFC PATCH v3 0/7] add support for CDX bus Nipun Gupta
2022-09-06 13:47 ` [RFC PATCH v3 1/7] dt-bindings: bus: add CDX bus device tree bindings Nipun Gupta
2022-09-06 17:46 ` Rob Herring
2022-09-07 3:13 ` Gupta, Nipun
2022-09-08 10:51 ` Krzysztof Kozlowski
2022-09-06 13:47 ` [RFC PATCH v3 2/7] bus/cdx: add the cdx bus driver Nipun Gupta
2022-09-07 0:32 ` Saravana Kannan
2022-09-07 3:21 ` Gupta, Nipun
2022-09-07 18:06 ` Saravana Kannan
2022-09-07 12:32 ` Greg KH
2022-09-08 13:29 ` Gupta, Nipun
2022-09-06 13:47 ` [RFC PATCH v3 3/7] iommu/arm-smmu-v3: support ops registration for CDX bus Nipun Gupta
2022-09-07 0:10 ` Saravana Kannan
2022-09-07 3:17 ` Gupta, Nipun
2022-09-07 8:27 ` Robin Murphy
2022-09-07 18:24 ` Saravana Kannan
2022-09-07 20:40 ` Robin Murphy
2022-09-08 0:14 ` Saravana Kannan
2022-09-06 13:47 ` [RFC PATCH v3 4/7] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta
2022-09-06 17:19 ` Jason Gunthorpe
2022-09-07 11:17 ` Marc Zyngier
2022-09-07 11:33 ` Robin Murphy
2022-09-07 12:14 ` Marc Zyngier
2022-09-07 11:35 ` Radovanovic, Aleksandar
[not found] ` <87illzuzyw.wl-maz@kernel.org>
2022-09-07 13:18 ` Radovanovic, Aleksandar
[not found] ` <87edwmuw4f.wl-maz@kernel.org>
2022-09-08 9:51 ` Radovanovic, Aleksandar
2022-09-08 11:49 ` Robin Murphy
2022-09-07 13:18 ` Marc Zyngier
2022-09-08 14:13 ` Gupta, Nipun
[not found] ` <87a67aueg7.wl-maz@kernel.org>
2022-09-09 6:32 ` Gupta, Nipun
2022-10-12 10:04 ` Gupta, Nipun
2022-10-12 10:34 ` Radovanovic, Aleksandar
2022-10-12 13:02 ` Jason Gunthorpe
2022-10-12 13:37 ` Radovanovic, Aleksandar
2022-10-12 14:38 ` Jason Gunthorpe
2022-10-12 15:09 ` Radovanovic, Aleksandar
2022-10-13 12:43 ` Jason Gunthorpe
2022-10-14 11:18 ` Radovanovic, Aleksandar
2022-10-14 11:54 ` gregkh
2022-10-14 12:13 ` Radovanovic, Aleksandar
2022-10-14 13:46 ` gregkh
2022-10-14 13:58 ` Jason Gunthorpe
2022-09-06 13:47 ` [RFC PATCH v3 5/7] bus/cdx: add bus and device attributes Nipun Gupta
2022-09-06 13:48 ` [RFC PATCH v3 6/7] vfio/cdx: add support for CDX bus Nipun Gupta
2022-09-06 17:20 ` Jason Gunthorpe
2022-09-06 17:23 ` Gupta, Nipun
2022-09-06 13:48 ` [RFC PATCH v3 7/7] vfio/cdx: add interrupt support Nipun Gupta
2022-10-14 4:40 ` [RFC PATCH v4 0/8] add support for CDX bus Nipun Gupta
2022-10-14 4:40 ` Nipun Gupta [this message]
2022-10-14 14:17 ` [RFC PATCH v4 1/8] dt-bindings: bus: add CDX bus device tree bindings Rob Herring
2022-10-17 10:18 ` Gupta, Nipun
2022-10-14 4:40 ` [RFC PATCH v4 2/8] bus/cdx: add the cdx bus driver Nipun Gupta
2022-10-14 7:15 ` Greg KH
2022-10-14 8:12 ` Gupta, Nipun
2022-10-14 7:18 ` Greg KH
2022-10-14 8:20 ` Gupta, Nipun
2022-10-14 4:40 ` [RFC PATCH v4 3/8] iommu/arm-smmu-v3: support ops registration for CDX bus Nipun Gupta
2022-10-14 4:51 ` Gupta, Nipun
2022-10-14 4:40 ` [RFC PATCH v4 4/8] bux/cdx: support dma configuration for CDX devices Nipun Gupta
2022-10-14 4:40 ` [RFC PATCH v4 5/8] bus/cdx: add bus and device attributes Nipun Gupta
2022-10-14 4:40 ` [RFC PATCH v4 6/8] irq/msi: use implicit msi domain for alloc and free Nipun Gupta
2022-10-14 4:40 ` [RFC PATCH v4 7/8] bus/cdx: add cdx-MSI domain with gic-its domain as parent Nipun Gupta
2022-11-17 19:10 ` Thomas Gleixner
2022-10-14 4:40 ` [RFC PATCH v4 8/8] bus/cdx: add cdx controller Nipun Gupta
2022-10-14 14:10 ` [RFC PATCH v4 0/8] add support for CDX bus Rob Herring
2022-10-17 10:08 ` Gupta, Nipun
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