From patchwork Mon Jan 23 16:18:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sricharan Ramabadhran X-Patchwork-Id: 9533037 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 465656046A for ; Mon, 23 Jan 2017 16:24:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 36A5F2846D for ; Mon, 23 Jan 2017 16:24:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 29C0428472; Mon, 23 Jan 2017 16:24:33 +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=-1.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, T_DKIM_INVALID autolearn=no version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9C0532846D for ; Mon, 23 Jan 2017 16:24:32 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cVhPw-000853-7B; Mon, 23 Jan 2017 16:24:28 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cVhLO-0003OL-1R for linux-arm-kernel@lists.infradead.org; Mon, 23 Jan 2017 16:19:53 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 9126660AF0; Mon, 23 Jan 2017 16:19:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1485188366; bh=Fu+WJ7wPyNbXa/7hEs8zYIvoDHT/c0b2J2zhcKOoIZA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zx9jgc5KQfex2REPe4fbU9L1luMmDApgULpSPXoiIokSgxvoV4RgtbYu9aWDLIQGa 5rUIIg8mJ0p6ir/WLdzbV5vKuL2v4LNUbaGic8kqtVwu58lQFofjlSczEjncRqchzF G5Ld+ocxp+QmBQ7CObtPT0/LbZwDE5bnMVp75zHc= Received: from blr-ubuntu-32.ap.qualcomm.com (unknown [202.46.23.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: sricharan@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1DEAB60A7A; Mon, 23 Jan 2017 16:19:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1485188354; bh=Fu+WJ7wPyNbXa/7hEs8zYIvoDHT/c0b2J2zhcKOoIZA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SXo6QwFs1dNV3wT1ofGlh+ThcVhF7yo+eKs5TX+rb01OSuFwNyt1aPjKKfBIiuAVU HdOUC5+YU/Fog/ppSL7r0Y1qxwxx7YwHEWmsimJ5C5KDjv4wJdnBQNJ2U4+4SnMOta WbjM6fM7xsiVJmc6SgcfSmNg8BLXUGTCLe18zi2Q= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1DEAB60A7A Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=sricharan@codeaurora.org From: Sricharan R To: robin.murphy@arm.com, will.deacon@arm.com, joro@8bytes.org, lorenzo.pieralisi@arm.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, m.szyprowski@samsung.com, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH V7 10/11] iommu/arm-smmu: Clean up early-probing workarounds Date: Mon, 23 Jan 2017 21:48:12 +0530 Message-Id: <1485188293-20263-11-git-send-email-sricharan@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1485188293-20263-1-git-send-email-sricharan@codeaurora.org> References: <1485188293-20263-1-git-send-email-sricharan@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170123_081946_333046_96D5536D X-CRM114-Status: GOOD ( 10.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sricharan@codeaurora.org MIME-Version: 1.0 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 From: Robin Murphy Now that the appropriate ordering is enforced via profe-deferral of masters in core code, rip it all out and bask in the simplicity. Acked-by: Will Deacon Signed-off-by: Robin Murphy [Sricharan: Rebased on top of ACPI IORT SMMU series] Signed-off-by: Sricharan R --- drivers/iommu/arm-smmu-v3.c | 46 ++--------------------------------- drivers/iommu/arm-smmu.c | 58 +++++++-------------------------------------- 2 files changed, 10 insertions(+), 94 deletions(-) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 4d6ec44..632b541 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -2729,51 +2729,9 @@ static int arm_smmu_device_remove(struct platform_device *pdev) .probe = arm_smmu_device_probe, .remove = arm_smmu_device_remove, }; +module_platform_driver(arm_smmu_driver); -static int __init arm_smmu_init(void) -{ - static bool registered; - int ret = 0; - - if (!registered) { - ret = platform_driver_register(&arm_smmu_driver); - registered = !ret; - } - return ret; -} - -static void __exit arm_smmu_exit(void) -{ - return platform_driver_unregister(&arm_smmu_driver); -} - -subsys_initcall(arm_smmu_init); -module_exit(arm_smmu_exit); - -static int __init arm_smmu_of_init(struct device_node *np) -{ - int ret = arm_smmu_init(); - - if (ret) - return ret; - - if (!of_platform_device_create(np, NULL, platform_bus_type.dev_root)) - return -ENODEV; - - return 0; -} -IOMMU_OF_DECLARE(arm_smmuv3, "arm,smmu-v3", arm_smmu_of_init); - -#ifdef CONFIG_ACPI -static int __init acpi_smmu_v3_init(struct acpi_table_header *table) -{ - if (iort_node_match(ACPI_IORT_NODE_SMMU_V3)) - return arm_smmu_init(); - - return 0; -} -IORT_ACPI_DECLARE(arm_smmu_v3, ACPI_SIG_IORT, acpi_smmu_v3_init); -#endif +IOMMU_OF_DECLARE(arm_smmuv3, "arm,smmu-v3", NULL); MODULE_DESCRIPTION("IOMMU API for ARM architected SMMUv3 implementations"); MODULE_AUTHOR("Will Deacon "); diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index a60cded..93f77bb 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -2134,56 +2134,14 @@ static int arm_smmu_device_remove(struct platform_device *pdev) .probe = arm_smmu_device_probe, .remove = arm_smmu_device_remove, }; - -static int __init arm_smmu_init(void) -{ - static bool registered; - int ret = 0; - - if (!registered) { - ret = platform_driver_register(&arm_smmu_driver); - registered = !ret; - } - return ret; -} - -static void __exit arm_smmu_exit(void) -{ - return platform_driver_unregister(&arm_smmu_driver); -} - -subsys_initcall(arm_smmu_init); -module_exit(arm_smmu_exit); - -static int __init arm_smmu_of_init(struct device_node *np) -{ - int ret = arm_smmu_init(); - - if (ret) - return ret; - - if (!of_platform_device_create(np, NULL, platform_bus_type.dev_root)) - return -ENODEV; - - return 0; -} -IOMMU_OF_DECLARE(arm_smmuv1, "arm,smmu-v1", arm_smmu_of_init); -IOMMU_OF_DECLARE(arm_smmuv2, "arm,smmu-v2", arm_smmu_of_init); -IOMMU_OF_DECLARE(arm_mmu400, "arm,mmu-400", arm_smmu_of_init); -IOMMU_OF_DECLARE(arm_mmu401, "arm,mmu-401", arm_smmu_of_init); -IOMMU_OF_DECLARE(arm_mmu500, "arm,mmu-500", arm_smmu_of_init); -IOMMU_OF_DECLARE(cavium_smmuv2, "cavium,smmu-v2", arm_smmu_of_init); - -#ifdef CONFIG_ACPI -static int __init arm_smmu_acpi_init(struct acpi_table_header *table) -{ - if (iort_node_match(ACPI_IORT_NODE_SMMU)) - return arm_smmu_init(); - - return 0; -} -IORT_ACPI_DECLARE(arm_smmu, ACPI_SIG_IORT, arm_smmu_acpi_init); -#endif +module_platform_driver(arm_smmu_driver); + +IOMMU_OF_DECLARE(arm_smmuv1, "arm,smmu-v1", NULL); +IOMMU_OF_DECLARE(arm_smmuv2, "arm,smmu-v2", NULL); +IOMMU_OF_DECLARE(arm_mmu400, "arm,mmu-400", NULL); +IOMMU_OF_DECLARE(arm_mmu401, "arm,mmu-401", NULL); +IOMMU_OF_DECLARE(arm_mmu500, "arm,mmu-500", NULL); +IOMMU_OF_DECLARE(cavium_smmuv2, "cavium,smmu-v2", NULL); MODULE_DESCRIPTION("IOMMU API for ARM architected SMMU implementations"); MODULE_AUTHOR("Will Deacon ");