From patchwork Wed Oct 12 11:44:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: MD Danish Anwar X-Patchwork-Id: 13004974 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 1977EC43219 for ; Wed, 12 Oct 2022 11:46:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=f7u+PSAhLatief+ueplodXmaeEq6RVgRQ4PCIIUYRF4=; b=WuThByH7RQYEHu tzE45ptuYKcFYef+RvJTWpHcxZv6Duml01lZDPpeDLOQhsyW+4XLVQnVTe7o6GS/Ux3diEMFohDkK nqNF+hRzeH3gcrsHcYbN5HBSUcitshqQf3lc40IJDwLB8KJxn4rCF1R+1UEdOahnQOs+oM9tgU8BJ 0ZBLS9ZdKLmAHlmrDpSa6hpi6psg0coVJo06Pxuzo6n1HUPesaeUDOULT+XYRKQBt4+BbzxFWFz8Q 67JFi5TnW95UO9S2ekPap/oRryqWigTrD675S/DHyRmzL9tGV+AzGADmFDGMoRsqNnLJva/3Bp2f4 u7MsLEmzO7YJvv7x3mlA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oiaAJ-007qqA-NN; Wed, 12 Oct 2022 11:44:47 +0000 Received: from lelv0142.ext.ti.com ([198.47.23.249]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oiaAF-007qoC-Ru for linux-arm-kernel@lists.infradead.org; Wed, 12 Oct 2022 11:44:45 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 29CBiZQc068539; Wed, 12 Oct 2022 06:44:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1665575075; bh=l48llKYZYe74oLUc7OyITAV50Gzss+1C8eZgngjr5kU=; h=From:To:CC:Subject:Date; b=bN9rgMq8rXUYxmdUjpKdhI9Kdr6MZUgJ5L5CcsXxDE2mO9EaHqgrSeNXvj0X0JPyn MibwrrwlBXRajzd5CPGfhmu6X4kBb26iHQAdp/009SH9JdFIXCeIDrZiOtHaU9thYI Xv8WG2t+IOJx5831QLxHeaR6TnLIdOzvMqGltfaQ= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 29CBiZ6E029140 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 12 Oct 2022 06:44:35 -0500 Received: from DLEE105.ent.ti.com (157.170.170.35) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6; Wed, 12 Oct 2022 06:44:35 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.6 via Frontend Transport; Wed, 12 Oct 2022 06:44:35 -0500 Received: from lelv0854.itg.ti.com (lelv0854.itg.ti.com [10.181.64.140]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 29CBiZG7106248; Wed, 12 Oct 2022 06:44:35 -0500 Received: from localhost (a0501179-pc.dhcp.ti.com [10.24.69.114]) by lelv0854.itg.ti.com (8.14.7/8.14.7) with ESMTP id 29CBiXTx017346; Wed, 12 Oct 2022 06:44:34 -0500 From: MD Danish Anwar To: Bjorn Andersson , Mathieu Poirier , Krzysztof Kozlowski Subject: [PATCH v6 0/6] Introduce PRU remoteproc consumer API Date: Wed, 12 Oct 2022 17:14:24 +0530 Message-ID: <20221012114429.2341215-1-danishanwar@ti.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221012_044444_108075_5A8A2336 X-CRM114-Status: GOOD ( 16.39 ) 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: , Cc: nm@ti.com, srk@ti.com, vigneshr@ti.com, devicetree@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, MD Danish Anwar , Roger Quadros , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICSS or simply PRUSS) on various TI SoCs consists of dual 32-bit RISC cores (Programmable Real-Time Units, or PRUs) for program execution. There are 3 foundation components for PRUSS subsystem: the PRUSS platform driver, the PRUSS INTC driver and the PRUSS remoteproc driver. All were already merged and can be found under: 1) drivers/soc/ti/pruss.c Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml 2) drivers/irqchip/irq-pruss-intc.c Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml 3) drivers/remoteproc/pru_rproc.c Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml The programmable nature of the PRUs provide flexibility to implement custom peripheral interfaces, fast real-time responses, or specialized data handling. Example of a PRU consumer drivers will be: - Software UART over PRUSS - PRU-ICSS Ethernet EMAC In order to make usage of common PRU resources and allow the consumer drivers to configure the PRU hardware for specific usage the PRU API is introduced. This is the v6 of the patch series [1]. This version of the patchset addresses the comments made on v5 [5] of the series. Two more patch series have been posted ([2] and [3]) that depends on this series, one has been posted to the soc/ti/ tree and another to the networking tree. All the 3 series including this one, has been sent as RFC [4] to get comments and to explain the dependencies. Changes from v5 to v6 : *) Added rproc_get_by_phandle() in pru_rproc_get() *) Provided background of Ctable in the commit messege. *) Removed patch "" [6] (6th Patch of the previous version of this series) as it has dependency on series [2], thus creating a cyclic dependency. The patch [6] will be sent along with the next version of series [2]. [1] https://patchwork.kernel.org/project/linux-remoteproc/cover/20220603121520.13730-1-p-mohan@ti.com/ [2] https://lore.kernel.org/all/20220418123004.9332-1-p-mohan@ti.com/ [3] https://lore.kernel.org/all/20220531095108.21757-1-p-mohan@ti.com/ [4] https://patchwork.kernel.org/project/linux-remoteproc/cover/20220406094358.7895-1-p-mohan@ti.com/ [5] https://lore.kernel.org/all/20220607045650.4999-1-p-mohan@ti.com/ [6] https://lore.kernel.org/all/20220607045650.4999-7-p-mohan@ti.com/ Thanks and Regards, Md Danish Anwar Roger Quadros (1): remoteproc: pru: Add pru_rproc_set_ctable() function Suman Anna (2): dt-bindings: remoteproc: Add PRU consumer bindings remoteproc: pru: Make sysfs entries read-only for PRU client driven boots Tero Kristo (2): remoteproc: pru: Add APIs to get and put the PRU cores remoteproc: pru: Configure firmware based on client setup .../bindings/remoteproc/ti,pru-consumer.yaml | 132 ++++++++++ drivers/remoteproc/pru_rproc.c | 237 +++++++++++++++++- include/linux/pruss.h | 78 ++++++ 3 files changed, 442 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml create mode 100644 include/linux/pruss.h