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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 EF2FAC2B9F4 for ; Sat, 26 Jun 2021 01:19:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BFBAB6162A for ; Sat, 26 Jun 2021 01:19:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229974AbhFZBV3 (ORCPT ); Fri, 25 Jun 2021 21:21:29 -0400 Received: from szxga01-in.huawei.com ([45.249.212.187]:11098 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229889AbhFZBV1 (ORCPT ); Fri, 25 Jun 2021 21:21:27 -0400 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4GBbXx16sTzZhxp; Sat, 26 Jun 2021 09:16:01 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 26 Jun 2021 09:19:04 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Sat, 26 Jun 2021 09:19:03 +0800 Subject: Re: [PATCH stable v5.10 0/7] arm64: Default to 32-bit wide ZONE_DMA To: Greg KH CC: Jing Xiangfeng , , , , , , , , , , , , , Li Huafei References: <827b317d7f5da6e048806922098291faacdb19f9.camel@suse.de> <604597E3.5000605@huawei.com> <31cd8432-2466-555d-7617-ae48cbcd4244@huawei.com> <8b0a4f25-0803-9341-f3a4-277d16802295@huawei.com> From: Kefeng Wang Message-ID: <29d5f027-c7d7-c7da-683b-cab12cc093f0@huawei.com> Date: Sat, 26 Jun 2021 09:19:02 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021/6/25 18:19, Greg KH wrote: > On Wed, Jun 23, 2021 at 04:01:10PM +0800, Kefeng Wang wrote: >> >> Let's inline the link: >> https://lore.kernel.org/lkml/20210303073319.2215839-1-jingxiangfeng@huawei.com/ >> >> The following 7 patches(we asked from link) has merged into lts5.10(tag: >> v5.10.22) >> >> 4d7ed9a49b0c mm: Remove examples from enum zone_type comment >> 8eaef922e938 arm64: mm: Set ZONE_DMA size based on early IORT scan >> 35ec3d09ff6a arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges >> a9861e7fa4f8 of: unittest: Add test for of_dma_get_max_cpu_address() >> 18bf6e998d08 of/address: Introduce of_dma_get_max_cpu_address() >> 3fbe62ffbb54 arm64: mm: Move zone_dma_bits initialization into >> zone_sizes_init() >> 407b173adfac arm64: mm: Move reserve_crashkernel() into mem_init() >> >> but the patch "arm64: mm: Move reserve_crashkernel() into mem_init()" >> has some issue, see the following discussion from Catalin, >> >> https://lore.kernel.org/linux-devicetree/e60d643e-4879-3fc3-737d-2c145332a6d7@arm.com/ >> https://lore.kernel.org/linux-arm-kernel/20201119175556.18681-1-catalin.marinas@arm.com/ >> >> and yes, we met crash in lts5.10 when kexec boot due to "arm64: mm: Move >> reserve_crashkernel() into mem_init()" too, which could be fixed by >> commit 2687275a5843 "arm64: Force NO_BLOCK_MAPPINGS if crashkernel >> reservation is required", and the commit 791ab8b2e3db "arm64: Ignore any DMA >> offsets in the max_zone_phys() calculation" also about DMA set, >> So I only asked the two patches(both in v5.11) related ARM64 ZONE_DMA >> changes backported into lts5.10. > Thanks, all now queued up. Thank you again ;) > greg k-h > . >