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=-5.5 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 74CACC433E1 for ; Tue, 14 Jul 2020 10:26:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F14721D7D for ; Tue, 14 Jul 2020 10:26:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=semihalf-com.20150623.gappssmtp.com header.i=@semihalf-com.20150623.gappssmtp.com header.b="LZc1Kh4T" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726758AbgGNK0g (ORCPT ); Tue, 14 Jul 2020 06:26:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44530 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725906AbgGNK0e (ORCPT ); Tue, 14 Jul 2020 06:26:34 -0400 Received: from mail-lj1-x244.google.com (mail-lj1-x244.google.com [IPv6:2a00:1450:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C88BC061755 for ; Tue, 14 Jul 2020 03:26:34 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id e4so21769436ljn.4 for ; Tue, 14 Jul 2020 03:26:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=LZc1Kh4Tz6klVSWkSiiyfiAsLQCH3B4VewePqWJl5Efzr0SGRVu07nV/7Ah2EE7KQ3 YHxqRE5Csr+LCs2H7PgFhO4r5fnYNloyJQvqjR9GjNpstK9WjahUj0bVPo5f8gBY9xG0 sZSD3LJlrHatNM/jiCsnCM2QIUWr8J1dzMgbSQQIldDFDHrenn+OYkWdIC7c+t9jOANv IgI3E0cEdErqHQD1i9TJ5a7hcxaDR4Jz94wauTiSzDwPvrsmeR2pwXbLbIsUIFNYIMuI 08GWBVOWoEFO17ZERdg8RgEOO0y33KAH5do2ahk43H3uQUiRmW/MDeqdpipZhg5CM1hU iDJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=kTJYpuNpfwNTklo2vccImfsprESKzD4vOd/L9ivkFFhzgXrQ1UPQh5zNGEugFJ1eJ0 iIKBT7dn6JJYeQbenbJ61W7vDBarLcpNq3t2SY8/rVP6dyyt6YdLB4xW3rNDUIo0MgWN 0JLbfTvHZ7MfRCyHWKL/irWW+BBjogVWWHmR3FTQsu1f9wgDSEMRBwBGD6Skf41xflP7 J9RmpUhaK1e3wANG2skH6zvF07XOm6/njnTZlIHhmR42Q77LoNo7IpQErHUSKinkhikm XjTahxfJeS8jGDxGfzLRJEI/mL38VfStppp2e46XoZxnBgVUlercJrZWvb63/qJvKjBz G54g== X-Gm-Message-State: AOAM533zPzIOonsc6hcEL2CHllUTSYEQUBsru9holiswSejnk3W9lQ0B X8RlOMG3udohnVgWt9EFf4jVYw== X-Google-Smtp-Source: ABdhPJyBLUOuAlvhbf1rlm9S6PlB1T6KmXOMQPNV4ajT8nLWMAwHQA2bi1kdmYD2kprduz0zv2lW9Q== X-Received: by 2002:a2e:99cf:: with SMTP id l15mr2027708ljj.294.1594722392984; Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Received: from [192.168.1.9] ([83.68.95.66]) by smtp.googlemail.com with ESMTPSA id f19sm4555276lja.84.2020.07.14.03.26.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Subject: Re: [PATCH v3 0/4] Add system mmu support for Armada-806 To: Will Deacon Cc: robin.murphy@arm.com, joro@8bytes.org, gregory.clement@bootlin.com, robh+dt@kernel.org, hannah@marvell.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, catalin.marinas@arm.com, nadavh@marvell.com, linux-arm-kernel@lists.infradead.org, mw@semihalf.com References: <20200702201633.22693-1-tn@semihalf.com> <20200714081949.GA4516@willie-the-truck> From: Tomasz Nowicki Message-ID: <0d9d734a-84cf-2280-67b6-0c96247e1baf@semihalf.com> Date: Tue, 14 Jul 2020 12:26:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200714081949.GA4516@willie-the-truck> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Will, On 14.07.2020 10:19, Will Deacon wrote: > Hi Tomasz, > > On Thu, Jul 02, 2020 at 10:16:29PM +0200, Tomasz Nowicki wrote: >> There were already two versions of series to support SMMU for AP806, >> including workaround for accessing ARM SMMU 64bit registers. >> First [1] by Hanna Hawa and second [2] by Gregory CLEMENT. >> Since it got stuck this is yet another try. I incorporated the V2 comments, >> mainly by moving workaround code to arm-smmu-impl.c as requested. >> >> For the record, AP-806 can't access SMMU registers with 64bit width, >> this patches split the readq/writeq into two 32bit accesses instead >> and update DT bindings. >> >> The series was successfully tested on a vanilla v5.8-rc3 kernel and >> Intel e1000e PCIe NIC. The same for platform devices like SATA and USB. >> >> [1]: https://lkml.org/lkml/2018/10/15/373 >> [2]: https://lkml.org/lkml/2019/7/11/426 > > Do you have a v4 of this series? It looks like there were a few comments > left to address, but with that I can pick it up for 5.9. Yes, I will send it out today. Thanks, Tomasz 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,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E0481C433DF for ; Tue, 14 Jul 2020 10:26:39 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (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 A89DA21D7D for ; Tue, 14 Jul 2020 10:26:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=semihalf-com.20150623.gappssmtp.com header.i=@semihalf-com.20150623.gappssmtp.com header.b="LZc1Kh4T" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A89DA21D7D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=semihalf.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 87F7588E5F; Tue, 14 Jul 2020 10:26:39 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7FvachsK2Xhu; Tue, 14 Jul 2020 10:26:39 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 13EF1889BA; Tue, 14 Jul 2020 10:26:39 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id EE2C6C0888; Tue, 14 Jul 2020 10:26:38 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 68E84C0733 for ; Tue, 14 Jul 2020 10:26:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5E88688C73 for ; Tue, 14 Jul 2020 10:26:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8DWnh8n6KusA for ; Tue, 14 Jul 2020 10:26:35 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from mail-lj1-f193.google.com (mail-lj1-f193.google.com [209.85.208.193]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 12D79889BA for ; Tue, 14 Jul 2020 10:26:35 +0000 (UTC) Received: by mail-lj1-f193.google.com with SMTP id x9so11798597ljc.5 for ; Tue, 14 Jul 2020 03:26:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=LZc1Kh4Tz6klVSWkSiiyfiAsLQCH3B4VewePqWJl5Efzr0SGRVu07nV/7Ah2EE7KQ3 YHxqRE5Csr+LCs2H7PgFhO4r5fnYNloyJQvqjR9GjNpstK9WjahUj0bVPo5f8gBY9xG0 sZSD3LJlrHatNM/jiCsnCM2QIUWr8J1dzMgbSQQIldDFDHrenn+OYkWdIC7c+t9jOANv IgI3E0cEdErqHQD1i9TJ5a7hcxaDR4Jz94wauTiSzDwPvrsmeR2pwXbLbIsUIFNYIMuI 08GWBVOWoEFO17ZERdg8RgEOO0y33KAH5do2ahk43H3uQUiRmW/MDeqdpipZhg5CM1hU iDJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=SYKamzI1CIv80Rk501+EEHbSgPqbC3kew8zPmxmldomSOfSvUxqVVO8tx3J4IQwHVo xyOJxYWnlNg+DTYVSjHYIHn8KfDJEmhG+ykJ11KVvVXnWlTHxnsRXrN48TXawrFZuvkp 5LzjoC/ABEeS2469+1U2K+u1t9ioXUt8W2fPK2ChoJLUjMAj/I6PxSmtXIkHOehcsXn4 0iV65cvfs8KqNlGqqj/cWlzqcAydi10r6/QrnIUc9V2wWOdDeLNoGtldlc+D5CAtUcfB IMVvq7iHLDc5dSFRjuTqIiWRr3Y8kpqLB6RYG6TbHy3cwRMZQ1kj242pvMcJQ0i08Y4G AYdQ== X-Gm-Message-State: AOAM533AdgR0aDFTJPqLJPg39EYeCKT20SK5Tb3RDN46tmjlXASE5V1N sv4amIVYxw+6rzJaaZ31jwOR8Q== X-Google-Smtp-Source: ABdhPJyBLUOuAlvhbf1rlm9S6PlB1T6KmXOMQPNV4ajT8nLWMAwHQA2bi1kdmYD2kprduz0zv2lW9Q== X-Received: by 2002:a2e:99cf:: with SMTP id l15mr2027708ljj.294.1594722392984; Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Received: from [192.168.1.9] ([83.68.95.66]) by smtp.googlemail.com with ESMTPSA id f19sm4555276lja.84.2020.07.14.03.26.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Subject: Re: [PATCH v3 0/4] Add system mmu support for Armada-806 To: Will Deacon References: <20200702201633.22693-1-tn@semihalf.com> <20200714081949.GA4516@willie-the-truck> From: Tomasz Nowicki Message-ID: <0d9d734a-84cf-2280-67b6-0c96247e1baf@semihalf.com> Date: Tue, 14 Jul 2020 12:26:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200714081949.GA4516@willie-the-truck> Content-Language: en-US Cc: devicetree@vger.kernel.org, gregory.clement@bootlin.com, catalin.marinas@arm.com, hannah@marvell.com, linux-kernel@vger.kernel.org, nadavh@marvell.com, iommu@lists.linux-foundation.org, robh+dt@kernel.org, mw@semihalf.com, robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Hi Will, On 14.07.2020 10:19, Will Deacon wrote: > Hi Tomasz, > > On Thu, Jul 02, 2020 at 10:16:29PM +0200, Tomasz Nowicki wrote: >> There were already two versions of series to support SMMU for AP806, >> including workaround for accessing ARM SMMU 64bit registers. >> First [1] by Hanna Hawa and second [2] by Gregory CLEMENT. >> Since it got stuck this is yet another try. I incorporated the V2 comments, >> mainly by moving workaround code to arm-smmu-impl.c as requested. >> >> For the record, AP-806 can't access SMMU registers with 64bit width, >> this patches split the readq/writeq into two 32bit accesses instead >> and update DT bindings. >> >> The series was successfully tested on a vanilla v5.8-rc3 kernel and >> Intel e1000e PCIe NIC. The same for platform devices like SATA and USB. >> >> [1]: https://lkml.org/lkml/2018/10/15/373 >> [2]: https://lkml.org/lkml/2019/7/11/426 > > Do you have a v4 of this series? It looks like there were a few comments > left to address, but with that I can pick it up for 5.9. Yes, I will send it out today. Thanks, Tomasz _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 AD05EC433E2 for ; Tue, 14 Jul 2020 10:27:56 +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 7B2C021D7D for ; Tue, 14 Jul 2020 10:27:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fDSR63QO"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=semihalf-com.20150623.gappssmtp.com header.i=@semihalf-com.20150623.gappssmtp.com header.b="LZc1Kh4T" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B2C021D7D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=semihalf.com 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-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=k4K2qYTGeldZsiX8NFH4tHd4ABlmpMUk4UCexbshWO8=; b=fDSR63QO24/TDP58FhMKL9AJO BsD+4c2fe1UZFLkDPSAyxVxgFhQGw8EbdlNQgXYD2N8bjQSwGgHfhFsKmMgUewrSn8SkFbayGwLdB sETJnN5LQ2DAIb7STo6RU077JQofi9uTnQbbLRY+tLbr2neTF0nwEUqbjm72Jh85NAa/6JII9PpOB 7AhneTvnEtkjSSf4/GEAwlZCqJRDiVLhqmDW0ALwgVuGilOf5MYwZSs1+hLGIfipj+tT7GqUmWKS8 SfrYw90OOnFqAM1m1wS+FsAXVQfpLadVHTV7V3Qjca+FSMluU0FIqXRN9PYO35E2+BPf2rwK42gVS Kc2ndcHtw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvI91-0005hq-FL; Tue, 14 Jul 2020 10:26:39 +0000 Received: from mail-lj1-x241.google.com ([2a00:1450:4864:20::241]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvI8y-0005gk-3u for linux-arm-kernel@lists.infradead.org; Tue, 14 Jul 2020 10:26:37 +0000 Received: by mail-lj1-x241.google.com with SMTP id f5so21777295ljj.10 for ; Tue, 14 Jul 2020 03:26:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=semihalf-com.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=LZc1Kh4Tz6klVSWkSiiyfiAsLQCH3B4VewePqWJl5Efzr0SGRVu07nV/7Ah2EE7KQ3 YHxqRE5Csr+LCs2H7PgFhO4r5fnYNloyJQvqjR9GjNpstK9WjahUj0bVPo5f8gBY9xG0 sZSD3LJlrHatNM/jiCsnCM2QIUWr8J1dzMgbSQQIldDFDHrenn+OYkWdIC7c+t9jOANv IgI3E0cEdErqHQD1i9TJ5a7hcxaDR4Jz94wauTiSzDwPvrsmeR2pwXbLbIsUIFNYIMuI 08GWBVOWoEFO17ZERdg8RgEOO0y33KAH5do2ahk43H3uQUiRmW/MDeqdpipZhg5CM1hU iDJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=wU3WsDZ5z/ReR22OZkjfVgyD9A9a3aDs09Gv8NCOr6k=; b=sD19edMn9q915FKjvxDURR+wWcWPjSMz2KpE6oQTQDKHXYYj3ExJfyPlZqISIAwV3D aw0gd6d9uErBxQ6if+LFh63M8hLLT3aecnteztf4YMeD7O/OMajqlkk98JDwWo9+Ojd1 2esnl6h0UDtWNnF6ee/Ymx/GhtooB24Ba6dktRfcXOLfST6FWUwNcADydHD+Xjv352m1 ogmD4pgNQpNkMYbIvywNBpXGLb1B3Byanb7AXOiJgk0/ApHHhOTo0sXR9dsn4FSQCQWQ iAuSQOJCyQLhb5JSaTw04KDKuqhvO179ivAjehDyMbr9PJwQLWZA9MyCpDmtZQozp/Kw FNfw== X-Gm-Message-State: AOAM531RcB3sMloSm1CfWFw4F9M4HJsliAR1z+Zz1b3lhVb1kZbJFs6U cBaQ5OHspW7FuL95QdKe1/tPiQ== X-Google-Smtp-Source: ABdhPJyBLUOuAlvhbf1rlm9S6PlB1T6KmXOMQPNV4ajT8nLWMAwHQA2bi1kdmYD2kprduz0zv2lW9Q== X-Received: by 2002:a2e:99cf:: with SMTP id l15mr2027708ljj.294.1594722392984; Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Received: from [192.168.1.9] ([83.68.95.66]) by smtp.googlemail.com with ESMTPSA id f19sm4555276lja.84.2020.07.14.03.26.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Jul 2020 03:26:32 -0700 (PDT) Subject: Re: [PATCH v3 0/4] Add system mmu support for Armada-806 To: Will Deacon References: <20200702201633.22693-1-tn@semihalf.com> <20200714081949.GA4516@willie-the-truck> From: Tomasz Nowicki Message-ID: <0d9d734a-84cf-2280-67b6-0c96247e1baf@semihalf.com> Date: Tue, 14 Jul 2020 12:26:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200714081949.GA4516@willie-the-truck> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200714_062636_287909_D692D9AC X-CRM114-Status: GOOD ( 17.45 ) 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, gregory.clement@bootlin.com, catalin.marinas@arm.com, hannah@marvell.com, linux-kernel@vger.kernel.org, nadavh@marvell.com, iommu@lists.linux-foundation.org, robh+dt@kernel.org, mw@semihalf.com, robin.murphy@arm.com, joro@8bytes.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Will, On 14.07.2020 10:19, Will Deacon wrote: > Hi Tomasz, > > On Thu, Jul 02, 2020 at 10:16:29PM +0200, Tomasz Nowicki wrote: >> There were already two versions of series to support SMMU for AP806, >> including workaround for accessing ARM SMMU 64bit registers. >> First [1] by Hanna Hawa and second [2] by Gregory CLEMENT. >> Since it got stuck this is yet another try. I incorporated the V2 comments, >> mainly by moving workaround code to arm-smmu-impl.c as requested. >> >> For the record, AP-806 can't access SMMU registers with 64bit width, >> this patches split the readq/writeq into two 32bit accesses instead >> and update DT bindings. >> >> The series was successfully tested on a vanilla v5.8-rc3 kernel and >> Intel e1000e PCIe NIC. The same for platform devices like SATA and USB. >> >> [1]: https://lkml.org/lkml/2018/10/15/373 >> [2]: https://lkml.org/lkml/2019/7/11/426 > > Do you have a v4 of this series? It looks like there were a few comments > left to address, but with that I can pick it up for 5.9. Yes, I will send it out today. Thanks, Tomasz _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel