From patchwork Mon Sep 9 17:03:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 13797319 Received: from mta-64-226.siemens.flowmailer.net (mta-64-226.siemens.flowmailer.net [185.136.64.226]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E479016EB56 for ; Mon, 9 Sep 2024 17:04:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.64.226 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725901447; cv=none; b=bipVnsx0YQtCYOW99b1zcYH9xdE53OWSqlA+DhBETijjJmS2Oiu++T4keNzGizPs4oBFmLytGjYej1cbRU16TH+FtnMmUUqXuCIj2o1/pKtCAjMBDMH0odzaQIJaW9HUNMvRGtNfitEIdbFVvlKP6QczXtNeDjD2cfe5uNJ2yko= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725901447; c=relaxed/simple; bh=ieZrb6nBNYizoVaRxWgq+w4P0Om1mIl5xlMgXmHJLpQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HHl3UiQtn8BhN/TwoT+x5O61Sn0rPQpt9eYE1US5vLexabieIymcprbgjD6SzhyF9bzDqtpX9eznNmIoWoII4d8MIyxXkbVxsN7cqcEVi8uOiOMbNgkC8VZfaqiRMpNYKMQSZ4IbIJ5Q1p7ms3vwDEhWoiITn6Ond3TSSLS7fYA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (2048-bit key) header.d=siemens.com header.i=jan.kiszka@siemens.com header.b=Fpg37k4X; arc=none smtp.client-ip=185.136.64.226 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=siemens.com header.i=jan.kiszka@siemens.com header.b="Fpg37k4X" Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 20240909170401e6077043ed829bd7ff for ; Mon, 09 Sep 2024 19:04:01 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=jan.kiszka@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=7HUlfn1xmn+4ZGiB6aVKgQXPt7LJ9m0S52DW4howHBI=; b=Fpg37k4XIz8ypJvJgms+X6b3YNWhISXjrkI3Toaft5vYaz2chX64FhXDG41kOLpBDfgwGQ 6S2ZYaaPHM5zeZj6YRbpaT9d24oNqRp3MTE/bt1BoxxCa3x3iGImR7YTIOnmtMkKR5qgEWlA EVTiuufZNs9puZYwyEmGmDI8Ai8r+IX/J80CWUpC6tnn4pDq+kXjBQsUXjMGxvJKQdEBKLpy Y3MF8wvBf7WtNMpDMsAh0qWspZ0Bm28lHQ4uaefTl0Skq05+P+apTurGFG/qZyQR0Jau5DOW GU/xdB9neYSm80o1iF2SGvYl558LcUC2g2FbAzYijKPXlYouBqfYuhKw==; From: Jan Kiszka To: Nishanth Menon , Santosh Shilimkar , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, Siddharth Vadapalli , Bao Cheng Su , Hua Qian Li , Diogo Ivo , Krzysztof Kozlowski Subject: [PATCH v6 1/7] dt-bindings: soc: ti: Add AM65 peripheral virtualization unit Date: Mon, 9 Sep 2024 19:03:54 +0200 Message-ID: <78294ee7ac10ce9f6fc3a57ba10cee92369d8aa8.1725901439.git.jan.kiszka@siemens.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-294854:519-21489:flowmailer From: Jan Kiszka The PVU allows to define a limited set of mappings for incoming DMA requests to the system memory. It is not a real IOMMU, thus hooked up under the TI SoC bindings. Signed-off-by: Jan Kiszka Reviewed-by: Krzysztof Kozlowski --- .../bindings/soc/ti/ti,am654-pvu.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml diff --git a/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml new file mode 100644 index 000000000000..e4a5fc47d674 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) Siemens AG, 2024 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/ti/ti,am654-pvu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI AM654 Peripheral Virtualization Unit + +maintainers: + - Jan Kiszka + +properties: + compatible: + enum: + - ti,am654-pvu + + reg: + maxItems: 2 + + reg-names: + items: + - const: cfg + - const: tlbif + + interrupts: + items: + - description: fault interrupt + + interrupt-names: + items: + - const: pvu + +required: + - compatible + - reg + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + iommu@30f80000 { + compatible = "ti,am654-pvu"; + reg = <0x30f80000 0x1000>, + <0x36000000 0x100000>; + reg-names = "cfg", "tlbif"; + interrupts-extended = <&intr_main_navss 390>; + interrupt-names = "pvu"; + };