From patchwork Thu Aug 3 17:59:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 13340418 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 7A818EB64DD for ; Thu, 3 Aug 2023 18:01:58 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=L46oItLPrVuP+JeUJDMwxwVtzEsRuozoHgWxam8/mRc=; b=euspVxzKU3Zn2O eFg6cvULUn9XuuA1T1eUBYhmgDInZjeywyP8383/HOi1DWOVBkr2mH+4JEL5QBipPM7f2CxXf4E59 /cENpESVHN6+6+KJDefHSeUPb1429FgDdZn6gbTQsTRJ5cpRWyN4cpsg+Uuz5MpoEHgpOX0vl5DTU rJC0iITuuEjIH9OxVZ7FfgVAGhCbpTQ92HTyRrOnk6K/BOtEghjLxkXzixZeDYzK61Bdzlf3P6fCn WX/V4/qe17iMEQzP2BhcwoFmija7WZy7Twsys0m1PyAj+SZPX8gLNogKRjSW5w9GgxjeG+hV0RBxo eLMu2Tj2qTXzoFWQGjWQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qRcde-00AVg7-2o; Thu, 03 Aug 2023 18:01:30 +0000 Received: from mail-pf1-x431.google.com ([2607:f8b0:4864:20::431]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qRcda-00AVcP-2b for linux-arm-kernel@lists.infradead.org; Thu, 03 Aug 2023 18:01:28 +0000 Received: by mail-pf1-x431.google.com with SMTP id d2e1a72fcca58-686e0213c0bso897542b3a.1 for ; Thu, 03 Aug 2023 11:01:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1691085686; x=1691690486; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9aQz/o5NvlReZUl/stpeRs4o5FY0c8qnUYDCfHqNmJI=; b=Yv3oRH7T1TZNQw/AeEOc/wdAwvfBHh5qCQDTqqhRRIWLN2RT7duj6j3Mlz5B+tyUjx DwzXxTjoAWH+iw6CkKfwMxF9xCniQjo3B09L5BaQ+m3yDEsvvlfRGxAUpVXc7dZmfqkz PN5+8DYtk9mthHfXcWzvd40WNmLxpaQLT+X3GYJHhIU0xy+P4PfNU1GlwdTTN0c2vXWS N5M/tFDrDNAY9aGtxjAy1r+U43wKUASBkf3zWtuZ0PK/OlWurnWRvhkcieTUH/K57kZ9 QHExlMok+1N1kt3iHzoySeHMoWERDl2+R1ayM9E29ohmdQ7YVT4UT939xn3e7d7QWGc0 3iwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691085686; x=1691690486; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9aQz/o5NvlReZUl/stpeRs4o5FY0c8qnUYDCfHqNmJI=; b=M0Ej2iEJK/X5n8WPwBO/6XI9t3ZCOSweM9T8k2ciBbLfuJ0y1GOkN7bB3w8qT/kbuk 5GntQ9A4ah+849LsmgnAnwuiGUzlnMzxc4nUpkGElZadqMfV7RTupZntGb4U/zirUyq1 jfbCgpfdDGaAAIhMc+dhwii/ixT056ILMnIfEnqiqXC7nUgSQxSIOR7zjQHGYgzxvMi5 y6Ec7gpzN9lPb/rOp4cflkqFCMR3sQ6BL/eSRAXxRL3Y3Q3jfonPXxBC4HIsFYWAQse6 HdL2OTU9jY4HuFPwzIkp14s/VcM1slsvUP1amdc2dzW7ZjSsiJABs+/FHdfD4WJIWN4O PyUw== X-Gm-Message-State: ABy/qLbJIXOdMgNs+JHAzbP1RR52oiqHU4K3cF2jV9fM/5RkpCml1a56 F75VcGFjVsyspwZr/MPOzuA13A== X-Google-Smtp-Source: APBJJlGAchtJBdt5IHqdaCzjHt1kkOK9wPe4WveHGvpGtfcTQHQdjS3NSncu/qTOIgVracHNUgSdbg== X-Received: by 2002:a05:6a20:3d91:b0:132:c07c:f042 with SMTP id s17-20020a056a203d9100b00132c07cf042mr22166693pzi.15.1691085686344; Thu, 03 Aug 2023 11:01:26 -0700 (PDT) Received: from sunil-pc.Dlink ([106.51.190.143]) by smtp.gmail.com with ESMTPSA id s8-20020aa78d48000000b0065a1b05193asm134952pfe.185.2023.08.03.11.01.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Aug 2023 11:01:26 -0700 (PDT) From: Sunil V L To: linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org Cc: Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Albert Ou , Catalin Marinas , Will Deacon , "Rafael J . Wysocki" , Len Brown , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , Daniel Lezcano , Thomas Gleixner , Anup Patel , Marc Zyngier , Bjorn Helgaas , Robert Moore , Haibo Xu , Andrew Jones , Conor Dooley , Atish Kumar Patra , Sunil V L Subject: [RFC PATCH v1 15/21] ACPI: RISC-V: Create IMSIC platform device Date: Thu, 3 Aug 2023 23:29:10 +0530 Message-Id: <20230803175916.3174453-16-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230803175916.3174453-1-sunilvl@ventanamicro.com> References: <20230803175916.3174453-1-sunilvl@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230803_110126_846336_D1489B5F X-CRM114-Status: GOOD ( 17.98 ) 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 The MSI controller functionality of the RISC-V IMSIC is probed as a platform device by the driver. So, create the IMSIC platform device if the IMSIC was discovered in MADT during early IMSIC driver probe. Signed-off-by: Sunil V L --- drivers/acpi/riscv/init.c | 2 ++ drivers/acpi/riscv/init.h | 4 ++++ drivers/acpi/riscv/irqchip.c | 23 +++++++++++++++++++++++ 3 files changed, 29 insertions(+) create mode 100644 drivers/acpi/riscv/init.h diff --git a/drivers/acpi/riscv/init.c b/drivers/acpi/riscv/init.c index b5807bbdb171..be61c08ea385 100644 --- a/drivers/acpi/riscv/init.c +++ b/drivers/acpi/riscv/init.c @@ -6,7 +6,9 @@ */ #include +#include "init.h" void __init acpi_riscv_init(void) { + riscv_acpi_imsic_platform_init(); } diff --git a/drivers/acpi/riscv/init.h b/drivers/acpi/riscv/init.h new file mode 100644 index 000000000000..a2f72bb294d3 --- /dev/null +++ b/drivers/acpi/riscv/init.h @@ -0,0 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include + +void __init riscv_acpi_imsic_platform_init(void); diff --git a/drivers/acpi/riscv/irqchip.c b/drivers/acpi/riscv/irqchip.c index 6e15d45cb229..ca96bf109cf7 100644 --- a/drivers/acpi/riscv/irqchip.c +++ b/drivers/acpi/riscv/irqchip.c @@ -9,7 +9,10 @@ #include #include #include +#include +#include #include +#include "../../../drivers/pci/pci.h" struct riscv_irqchip_list { struct fwnode_handle *fwnode; @@ -101,3 +104,23 @@ struct fwnode_handle *acpi_riscv_get_msi_fwnode(struct device *dev) { return imsic_acpi_fwnode; } + +void __init riscv_acpi_imsic_platform_init(void) +{ + struct platform_device *pdev; + int ret; + + if (!acpi_riscv_get_msi_fwnode(NULL)) { + pci_no_msi(); + return; + } + + pdev = platform_device_alloc("riscv-imsic", 0); + if (!pdev) + return; + + pdev->dev.fwnode = acpi_riscv_get_msi_fwnode(NULL); + ret = platform_device_add(pdev); + if (ret) + platform_device_put(pdev); +}