From patchwork Sat Mar 15 00:19:27 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Kisel X-Patchwork-Id: 14017642 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 53792C282EC for ; Sat, 15 Mar 2025 00:33:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NIRoaJMzXhRU+FEOMF0AnLyeJ+Xl1dVpfnO4TXIokQU=; b=w41hVfOkLVls2O3w5Y0+UwryLP JwfijMfFaO/J4/eAoKcds8uEO9zjWrDcMn2fbVyrQSV0FnhZP6xbBX7Ht0oMxR4obr0bfH1Z8Z/c2 R6e60nycQNjkzxMkTl43MQ9x0H5LKpCmWQUQzebyz8x7/6fPIm/36X9tz2bwcMgDJ/RilkRVAGyI+ xzWbGnlxKmfpubeg1pzOi/b9+cxEmyrrQ4nMx126JI5PpEuILmdzyVPDD4etOXEYnCnKglqWhKQCu 0bmPJpkC/1T7mgaK67WbXEKE0NAdLIojUny+zOZ65eooeNZycN/o7wpDQD9jKIgfiYpD7X0fQvWo6 jMQ/Nkpw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1ttFSj-0000000FbRJ-1Dlk; Sat, 15 Mar 2025 00:33:13 +0000 Received: from linux.microsoft.com ([13.77.154.182]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1ttFFY-0000000FZS1-2tkX for linux-arm-kernel@lists.infradead.org; Sat, 15 Mar 2025 00:19:38 +0000 Received: from romank-3650.corp.microsoft.com (unknown [131.107.160.188]) by linux.microsoft.com (Postfix) with ESMTPSA id 9B8D02038A52; Fri, 14 Mar 2025 17:19:35 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 9B8D02038A52 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1741997975; bh=NIRoaJMzXhRU+FEOMF0AnLyeJ+Xl1dVpfnO4TXIokQU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cac0nYhWonKSodrgcm22k2UaS9TFPGH2L0yKUnuRyCzzIt1EGqE45j6m5xxZikYmV +jClSCydm9Z5xvpZQhb2vydLjRj1mcNwjNPciHvS+6BCTf+fYeG1Hhm/ZQqaLCAKs8 LmtpfXtoSxYjfIiPMlAI1f/38L4NWn5yQ+6QcIqM= From: Roman Kisel To: arnd@arndb.de, bhelgaas@google.com, bp@alien8.de, catalin.marinas@arm.com, conor+dt@kernel.org, dan.carpenter@linaro.org, dave.hansen@linux.intel.com, decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com, joey.gouly@arm.com, krzk+dt@kernel.org, kw@linux.com, kys@microsoft.com, lenb@kernel.org, lpieralisi@kernel.org, manivannan.sadhasivam@linaro.org, mark.rutland@arm.com, maz@kernel.org, mingo@redhat.com, oliver.upton@linux.dev, rafael@kernel.org, robh@kernel.org, ssengar@linux.microsoft.com, sudeep.holla@arm.com, suzuki.poulose@arm.com, tglx@linutronix.de, wei.liu@kernel.org, will@kernel.org, yuzenghui@huawei.com, devicetree@vger.kernel.org, kvmarm@lists.linux.dev, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org Cc: apais@microsoft.com, benhill@microsoft.com, bperkins@microsoft.com, sunilmut@microsoft.com Subject: [PATCH hyperv-next v6 07/11] dt-bindings: microsoft,vmbus: Add interrupt and DMA coherence properties Date: Fri, 14 Mar 2025 17:19:27 -0700 Message-ID: <20250315001931.631210-8-romank@linux.microsoft.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250315001931.631210-1-romank@linux.microsoft.com> References: <20250315001931.631210-1-romank@linux.microsoft.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250314_171936_773316_E2BE038D X-CRM114-Status: GOOD ( 11.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To boot in the VTL mode, VMBus on arm64 needs interrupt description which the binding documentation lacks. The transactions on the bus are DMA coherent which is not mentioned as well. Add the interrupt property and the DMA coherence property to the VMBus binding. Update the example to match that. Fix typos. Signed-off-by: Roman Kisel Reviewed-by: Krzysztof Kozlowski --- .../bindings/bus/microsoft,vmbus.yaml | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml index a8d40c766dcd..ca288ea54b34 100644 --- a/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml +++ b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml @@ -10,8 +10,8 @@ maintainers: - Saurabh Sengar description: - VMBus is a software bus that implement the protocols for communication - between the root or host OS and guest OSs (virtual machines). + VMBus is a software bus that implements the protocols for communication + between the root or host OS and guest OS'es (virtual machines). properties: compatible: @@ -25,9 +25,17 @@ properties: '#size-cells': const: 1 + dma-coherent: true + + interrupts: + maxItems: 1 + description: | + This interrupt is used to report a message from the host. + required: - compatible - ranges + - interrupts - '#address-cells' - '#size-cells' @@ -35,6 +43,8 @@ additionalProperties: false examples: - | + #include + #include soc { #address-cells = <2>; #size-cells = <1>; @@ -49,6 +59,9 @@ examples: #address-cells = <2>; #size-cells = <1>; ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>; + dma-coherent; + interrupt-parent = <&gic>; + interrupts = ; }; }; };