From patchwork Tue Nov 3 17:31:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11878523 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=-6.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 9E686C2D0A3 for ; Tue, 3 Nov 2020 17:32:52 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3C6B321D91 for ; Tue, 3 Nov 2020 17:32:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="MvKWVgrQ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C6B321D91 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=8yYvxIjgaNb7fhquo+9XDduLY/3dz5iRRt7TycHxv+g=; b=MvKWVgrQFV5OkCmx2wI8HfBGXR Q3tlLuAVJvOJiQPBsE8p3GdniB//0Rgp1Jr38eUHUSreKQkvv/hpIT5qEN9gnrFdtsWVhluDkNpO8 mWm9+20LQ1gTQjSX515tm7A6Jrs2jZ1mtMdAEtCKKn1cyoVv5pWIObGujNQleLfgm66zYUXiBwpra NYUTUPxxQPYatqSI9ONPfIAPseXOzk7cOs6niba04yAqbC0GOreSnvx1k2VS/4NRmfiLn2XcaPxNH bJr9BH9vdSeOzEQYJy+hEjwE6c8BdGODGduOwCuB5IDTzaYBK75spgICtUerRNYciz2yp6SMOBUW1 HtOhVP9A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka0AL-0006O8-9I; Tue, 03 Nov 2020 17:32:17 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ka0A9-0006JH-5Z; Tue, 03 Nov 2020 17:32:06 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id CAC57AD5F; Tue, 3 Nov 2020 17:32:03 +0000 (UTC) From: Nicolas Saenz Julienne To: robh+dt@kernel.org, catalin.marinas@arm.com, hch@lst.de, ardb@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 0/7] arm64: Default to 32-bit wide ZONE_DMA Date: Tue, 3 Nov 2020 18:31:51 +0100 Message-Id: <20201103173159.27570-1-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.29.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201103_123205_380354_E4A6FE18 X-CRM114-Status: GOOD ( 10.49 ) 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, lorenzo.pieralisi@arm.com, linux-acpi@vger.kernel.org, will@kernel.org, jeremy.linton@arm.com, linux-mm@kvack.org, Nicolas Saenz Julienne , iommu@lists.linux-foundation.org, linux-rpi-kernel@lists.infradead.org, guohanjun@huawei.com, linux-riscv@lists.infradead.org, robin.murphy@arm.com, 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 Using two distinct DMA zones turned out to be problematic. Here's an attempt go back to a saner default. I tested this on both a RPi4 and QEMU. --- Changes since v5: - Unify ACPI/DT functions Changes since v4: - Fix of_dma_get_max_cpu_address() so it returns the last addressable addres, not the limit Changes since v3: - Drop patch adding define in dma-mapping - Address small review changes - Update Ard's patch - Add new patch removing examples from mmzone.h Changes since v2: - Introduce Ard's patch - Improve OF dma-ranges parsing function - Add unit test for OF function - Address small changes - Move crashkernel reservation later in boot process Changes since v1: - Parse dma-ranges instead of using machine compatible string Ard Biesheuvel (1): arm64: mm: Set ZONE_DMA size based on early IORT scan Nicolas Saenz Julienne (6): arm64: mm: Move reserve_crashkernel() into mem_init() arm64: mm: Move zone_dma_bits initialization into zone_sizes_init() of/address: Introduce of_dma_get_max_cpu_address() of: unittest: Add test for of_dma_get_max_cpu_address() arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges mm: Remove examples from enum zone_type comment arch/arm64/mm/init.c | 18 ++++++------- drivers/acpi/arm64/iort.c | 55 +++++++++++++++++++++++++++++++++++++++ drivers/of/address.c | 42 ++++++++++++++++++++++++++++++ drivers/of/unittest.c | 18 +++++++++++++ include/linux/acpi_iort.h | 4 +++ include/linux/mmzone.h | 20 -------------- include/linux/of.h | 7 +++++ 7 files changed, 135 insertions(+), 29 deletions(-)