From patchwork Mon Jul 8 03:52:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Suman Anna X-Patchwork-Id: 11034561 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 79713138D for ; Mon, 8 Jul 2019 03:54:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 67ED128399 for ; Mon, 8 Jul 2019 03:54:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C5F4283A6; Mon, 8 Jul 2019 03:54:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D79C828399 for ; Mon, 8 Jul 2019 03:54:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; 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=pSBaYZwUO5JVPOiBTbZKF91vNKbwNn9cW1hmHpRPSUA=; b=eGCv3y2PVdobsN sA/fxSGSzWwLoST0wWPYorsi/fCJM75quCELJBecCM29DZUXTls6rEdF64+U9ti6INMGa33OJWaWw I31qUATNmntRT6b2GcqZ88r8wQ8hHtQTbfhhf+CY1ofwNb+N3qg+a/hlApjcE7HkiSsHvQOG7RHnG DVSypFY134OJTrZJMG+IwidldR6aV0ZU5vg3HLl9NycEynW1DURoI2XP4JLavwGgS6HId7XswYxei vxc8dmA5//stNmbcKdDnxHufVznm/o3PWVt0dfq6FJ2frdXI+HdUw7o9RhBr/6Q+wy4pz2boZ1C1q vN2LkvQpjDwQrcOqGZEA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hkKjs-0000pd-0g; Mon, 08 Jul 2019 03:54:52 +0000 Received: from lelv0142.ext.ti.com ([198.47.23.249]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hkKit-0008V8-Nv for linux-arm-kernel@lists.infradead.org; Mon, 08 Jul 2019 03:53:54 +0000 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x683qjop025049; Sun, 7 Jul 2019 22:52:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1562557965; bh=BrRcS2Ts0+S5AcxuLtFsmCPOIptQ/S7lXXWgFUi6kWA=; h=From:To:CC:Subject:Date; b=OTI6h2xjNNQdb3BrlzNL/9rQfQhkLJarwU+e1JabV7dNUSUXFfKUKsiD/ikWgEBY9 hxjHyYrtOMQthS+xqFLpEqjBma0vp5rGXgbediC3+mW6bj2lcwK6vDQyHrEL9PnBT+ Tdrkd1DEGu7SLZuMaY+0O9s7gQX1s8k82chb0qSY= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x683qjf7042834 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 7 Jul 2019 22:52:45 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Sun, 7 Jul 2019 22:52:45 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Sun, 7 Jul 2019 22:52:45 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x683qjaa122089; Sun, 7 Jul 2019 22:52:45 -0500 Received: from localhost (irmo.dhcp.ti.com [128.247.58.153]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id x683qjm26429; Sun, 7 Jul 2019 22:52:45 -0500 (CDT) From: Suman Anna To: Marc Zyngier , Rob Herring , Thomas Gleixner , Jason Cooper Subject: [PATCH 0/6] Add TI PRUSS Local Interrupt Controller IRQChip driver Date: Sun, 7 Jul 2019 22:52:37 -0500 Message-ID: <20190708035243.12170-1-s-anna@ti.com> X-Mailer: git-send-email 2.22.0 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-20190707_205351_857450_572F4CF4 X-CRM114-Status: GOOD ( 15.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Grygorii Strashko , David Lechner , Tony Lindgren , Sekhar Nori , linux-kernel@vger.kernel.org, "Andrew F. Davis" , Lokesh Vutla , Murali Karicheri , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Roger Quadros Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Hi All, The following series adds an IRQChip driver for the local interrupt controller present within a Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICSS) present on a number of TI SoCs including OMAP architecture based AM335x, AM437x, AM57xx SoCs, Keystone 2 architecture based 66AK2G SoCs, Davinci architecture based OMAP-L138/DA850 SoCs and the latest K3 architecture based AM65x and J721E SoCs. This series splits out the INTC portions into a separate stand-alone series from the previous PRUSS support patch series [1] as requested by various maintainers. Patches are on top of latest master. The PRUSS local INTC is a unique interrupt controller designed to map a number of SoC-level device or internal PRUSS interrupt sources into a smaller set of output interrupt lines that are connected to various SoC-level processors like the host ARM, PRU cores themselves and optionally to some DSPs, other PRUSS, DMA controllers etc. The following are some of the features: - Capture of 64 (160 on K3) System Events/input interrupt sources - Multiplexing of these system events onto 10 (20 on K3) output interrupt channels in a many-to-one fashion - Multiplexing of the output interrupt channels onto 10 (20 on K3) host interrupts split between multiple processors. Typical integration connects the first 2 host interrupts to PRU cores, and the next 8 host interrupts to ARM cores. - Independent enable and disable of system events and their mapping onto a channel - Independent enable and disable of host events and the mapping to host events per interrupt channel. - Inherent hardward prioritization of events and channels (lower number indicates higher priority). - Additional input interrupt sources multiplexing using either a SoC-level CFG MMR or PRUSS CFG MMR (support will be added through PRU rproc client bindings). More details can be found in any of the supported SoC TRMs. Eg: Chapter 30.1.6 of AM5728 TRM [2] Changes from previous series include: - Update bindings to move away from SoC-specific compatibles - Use new DT properties to add support for shared and exclusive ARM GIC interrupt lines - Include support for Davinci OMAP-L138 and K3 AM65x & J721E SoCs - Split up the driver patch into granular incremental support patches regards Suman [1] https://patchwork.kernel.org/cover/10795721/ [2] http://www.ti.com/lit/pdf/spruhz6 Andrew F. Davis (2): irqchip/irq-pruss-intc: Add a PRUSS irqchip driver for PRUSS interrupts irqchip/irq-pruss-intc: Add API to trigger a PRU sysevent Suman Anna (4): dt-bindings: irqchip: Add PRUSS interrupt controller bindings irqchip/irq-pruss-intc: Add support for shared and invalid interrupts irqchip/irq-pruss-intc: Add helper functions to configure internal mapping irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs .../interrupt-controller/ti,pruss-intc.txt | 92 +++ drivers/irqchip/Kconfig | 10 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-pruss-intc.c | 749 ++++++++++++++++++ include/linux/irqchip/irq-pruss-intc.h | 33 + include/linux/pruss_intc.h | 26 + 6 files changed, 911 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.txt create mode 100644 drivers/irqchip/irq-pruss-intc.c create mode 100644 include/linux/irqchip/irq-pruss-intc.h create mode 100644 include/linux/pruss_intc.h