From patchwork Thu Nov 19 17:53:52 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: 11918621 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,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 CF31BC6369E for ; Thu, 19 Nov 2020 17:54:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 875F8246CA for ; Thu, 19 Nov 2020 17:54:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729520AbgKSRyH (ORCPT ); Thu, 19 Nov 2020 12:54:07 -0500 Received: from mx2.suse.de ([195.135.220.15]:40660 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729335AbgKSRyH (ORCPT ); Thu, 19 Nov 2020 12:54:07 -0500 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 408CFAC22; Thu, 19 Nov 2020 17:54:06 +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 Cc: robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, jeremy.linton@arm.com, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, will@kernel.org, lorenzo.pieralisi@arm.com, guohanjun@huawei.com, Nicolas Saenz Julienne , linux-acpi@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org Subject: [PATCH v7 0/7] arm64: Default to 32-bit wide ZONE_DMA Date: Thu, 19 Nov 2020 18:53:52 +0100 Message-Id: <20201119175400.9995-1-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.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 v6: - Update patch #1 so we reserve crashkernel before request_standard_resources() - Tested on top of Catalin's mem_init() patches. 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 | 22 +++++++++------- 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, 139 insertions(+), 29 deletions(-)