From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AA47C43603 for ; Tue, 10 Dec 2019 11:12:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3341020726 for ; Tue, 10 Dec 2019 11:12:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=sifive.com header.i=@sifive.com header.b="Dl+YJlqM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727374AbfLJLM0 (ORCPT ); Tue, 10 Dec 2019 06:12:26 -0500 Received: from mail-dm6nam10on2051.outbound.protection.outlook.com ([40.107.93.51]:57249 "EHLO NAM10-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726915AbfLJLMW (ORCPT ); Tue, 10 Dec 2019 06:12:22 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=f/924dGlmzSsKUbkEIQZrk/M+wlHqI1zTGwcWh7gMF3RALYfBqQl8MEmh3T9r3Qvj/Vs7KfKdpmUByuvqPxTm4OdgQoyqnEAihk2tE+fZDLqCV4KrdAF/4EL2eorvz/sY4mHQbwaZsq7zJO9xX1ehiiKDEcR7PTKvthGYaHdhII5CZhb8QDX5ZU+2b6h5n488fOWFT2WGRRCiv4FMVMIb1/NzrY0nq02sGs2uxx6nXRxQJM/B2Y0+A7TwqELZx1eJGBYcVH+tdXRoCENNWGqZ2g8cSvQ2XgpGUDWGVcouYOP6gZHWKIihtF0/8M8ZxhEolpQpoXEDzlqGEb0yIfXSQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=URfawLSEXkGQGbpLHsV8ZsdnEVngNhvRhQXP7gJgttc=; b=OPaoAjYGwaIEPKnmtl2x67Ji4qMjsKaWCoD76Dsj13/7WWblT0UuaI20sse1eTnfizvhC1+RlpFQMpafnoJg/DOgDy1RwoU9pqd5LQk4XoKOYteMt6wHj0Jv76yn2xAEf8OMIzF1U8GENJweBTJC4vK01U8NFlKLx65IG7A7cYOeqtvlE5T3Ergr92PV25721407zYMPFHGdOzJlwv6JUC8Bjv86/xoyfqRmdOHIgyxsEITKHILFqfZS+3pg9S0S7v8sG4+FvS55QHOyoaeGmIiAxb7YGlDEXpOoWQcuuyAFUC7sUy2BPMpos+F94wD7B1TZV9tyVzfd9pEghrS+DA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=sifive.com; dmarc=pass action=none header.from=sifive.com; dkim=pass header.d=sifive.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=URfawLSEXkGQGbpLHsV8ZsdnEVngNhvRhQXP7gJgttc=; b=Dl+YJlqMYDyCQeiNDpaTt2Z6mAbSqkdkNCPccGT3fHuO/VdoaMwD/vi0x2Pd85r+h7HcPRAoXf8Vc2b5R78pbCfLQkwuE2zpRE+dT6LWzAL3pIENLEnpqHaNACLleKbA7L3x8vXMVtXEdf90PA1v14JkGhbG2rUpkcL7ybAlisE= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=yash.shah@sifive.com; Received: from CH2PR13MB3368.namprd13.prod.outlook.com (52.132.246.90) by CH2PR13MB3656.namprd13.prod.outlook.com (20.180.4.204) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2538.14; Tue, 10 Dec 2019 11:11:57 +0000 Received: from CH2PR13MB3368.namprd13.prod.outlook.com ([fe80::eccb:16ac:e897:85d5]) by CH2PR13MB3368.namprd13.prod.outlook.com ([fe80::eccb:16ac:e897:85d5%3]) with mapi id 15.20.2538.012; Tue, 10 Dec 2019 11:11:57 +0000 From: Yash Shah To: linus.walleij@linaro.org, bgolaszewski@baylibre.com, robh+dt@kernel.org, mark.rutland@arm.com, palmer@dabbelt.com, paul.walmsley@sifive.com Cc: aou@eecs.berkeley.edu, tglx@linutronix.de, jason@lakedaemon.net, maz@kernel.org, bmeng.cn@gmail.com, atish.patra@wdc.com, sagar.kadam@sifive.com, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, sachin.ghadi@sifive.com, Yash Shah Subject: [PATCH v4 3/6] irqchip: sifive: Support hierarchy irq domain Date: Tue, 10 Dec 2019 16:41:11 +0530 Message-Id: <1575976274-13487-4-git-send-email-yash.shah@sifive.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1575976274-13487-1-git-send-email-yash.shah@sifive.com> References: <1575976274-13487-1-git-send-email-yash.shah@sifive.com> Content-Type: text/plain X-ClientProxiedBy: PN1PR0101CA0028.INDPRD01.PROD.OUTLOOK.COM (2603:1096:c00:c::14) To CH2PR13MB3368.namprd13.prod.outlook.com (2603:10b6:610:2c::26) MIME-Version: 1.0 Received: from dhananjayk-PowerEdge-R620.open-silicon.com (114.143.65.226) by PN1PR0101CA0028.INDPRD01.PROD.OUTLOOK.COM (2603:1096:c00:c::14) with Microsoft SMTP Server (version=TLS1_2, cipher=) via Frontend Transport; Tue, 10 Dec 2019 11:11:51 +0000 X-Mailer: git-send-email 2.7.4 X-Originating-IP: [114.143.65.226] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 807eb966-698b-429a-50c1-08d77d61c51b X-MS-TrafficTypeDiagnostic: CH2PR13MB3656: X-LD-Processed: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1,ExtAddr X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3826; X-Forefront-PRVS: 02475B2A01 X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10009020)(396003)(39850400004)(366004)(136003)(346002)(376002)(199004)(189003)(36756003)(66476007)(1006002)(107886003)(52116002)(6666004)(66946007)(6506007)(26005)(956004)(316002)(2616005)(81166006)(8936002)(81156014)(16526019)(186003)(8676002)(44832011)(6636002)(5660300002)(86362001)(6486002)(7416002)(66556008)(6512007)(4326008)(478600001)(2906002);DIR:OUT;SFP:1101;SCL:1;SRVR:CH2PR13MB3656;H:CH2PR13MB3368.namprd13.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; Received-SPF: None (protection.outlook.com: sifive.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: YlMOvGtZpnZ+vd0WnuN2FTIMoG2GpdZV1caA84O5XpOPXg/BTTalQ/MrLTU9VzUI+yhucCpAxnFllsaqGUsSPe/oCJtHMw/wimZXO5b8ckpBYsivYtgMpuzL02vDYPA5UR3tliTCvNnR23QPrkBE6SqdfniCJUrivrRGHIPXRtWfaEt/uNIEIUeoz0xoThAZAZr6x5Inx7ccto5FanVxNDR3B0lzC07qUb57+vV+w6r1lsIhiUhN/tLTmu02AD9E2XYoL5qiGmGnHCVTHNZ13D1MHFwUeyptJPGiA7xtTZYN3Iix8mukJTS8xwv5lP+0wzpCSl/lam2SltsGhQYwcOnwjW1cjurya2CJDP0Ga2Ufv1pw7GhYVdS0xNA+a2Azm6GxOjHtfusdppWcU7PwKt9TkMRfFrwLtEJn9PCVmQ3HUnli+Xyi4nIKJi++M324 X-OriginatorOrg: sifive.com X-MS-Exchange-CrossTenant-Network-Message-Id: 807eb966-698b-429a-50c1-08d77d61c51b X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Dec 2019 11:11:57.0404 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: SCWMLczCMN1WS+ybokw/ini7TsULxp2byl0X0gH15Xci8FfwEiTeirgF1Nl7Et6H1ZYcYz+XWt/Y3HsaWXi+/Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR13MB3656 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for hierarchy irq domains. This is needed as pre-requisite for gpio-sifive driver. Signed-off-by: Yash Shah --- drivers/irqchip/Kconfig | 1 + drivers/irqchip/irq-sifive-plic.c | 30 ++++++++++++++++++++++++++---- 2 files changed, 27 insertions(+), 4 deletions(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index ccbb897..a398552 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -488,6 +488,7 @@ endmenu config SIFIVE_PLIC bool "SiFive Platform-Level Interrupt Controller" depends on RISCV + select IRQ_DOMAIN_HIERARCHY help This enables support for the PLIC chip found in SiFive (and potentially other) RISC-V systems. The PLIC controls devices diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index 7d0a12f..1592ef2 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -154,15 +154,37 @@ static struct irq_chip plic_chip = { static int plic_irqdomain_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hwirq) { - irq_set_chip_and_handler(irq, &plic_chip, handle_fasteoi_irq); - irq_set_chip_data(irq, NULL); + irq_domain_set_info(d, irq, hwirq, &plic_chip, d->host_data, + handle_fasteoi_irq, NULL, NULL); irq_set_noprobe(irq); return 0; } +static int plic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq, + unsigned int nr_irqs, void *arg) +{ + int i, ret; + irq_hw_number_t hwirq; + unsigned int type; + struct irq_fwspec *fwspec = arg; + + ret = irq_domain_translate_onecell(domain, fwspec, &hwirq, &type); + if (ret) + return ret; + + for (i = 0; i < nr_irqs; i++) { + ret = plic_irqdomain_map(domain, virq + i, hwirq + i); + if (ret) + return ret; + } + + return 0; +} + static const struct irq_domain_ops plic_irqdomain_ops = { - .map = plic_irqdomain_map, - .xlate = irq_domain_xlate_onecell, + .translate = irq_domain_translate_onecell, + .alloc = plic_irq_domain_alloc, + .free = irq_domain_free_irqs_top, }; static struct irq_domain *plic_irqdomain; -- 2.7.4