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=-8.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 8AF24C433E1 for ; Fri, 14 Aug 2020 17:14:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 3095E20829 for ; Fri, 14 Aug 2020 17:14:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="cYwBfwhe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3095E20829 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40500 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k6dI9-0003jZ-Fc for qemu-devel@archiver.kernel.org; Fri, 14 Aug 2020 13:14:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55102) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k6dHY-0003BB-L9 for qemu-devel@nongnu.org; Fri, 14 Aug 2020 13:14:20 -0400 Received: from mail-pg1-x543.google.com ([2607:f8b0:4864:20::543]:34237) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1k6dHW-0006T8-2h for qemu-devel@nongnu.org; Fri, 14 Aug 2020 13:14:20 -0400 Received: by mail-pg1-x543.google.com with SMTP id t6so4842506pgq.1 for ; Fri, 14 Aug 2020 10:14:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=W/wUZOH5ocCYaxtdFeNeV+AHNSModoUQ1LO31NfMKFA=; b=cYwBfwhesFb/1funJnrCKQpm2JzwMCpjBJutJMgWpppjzezWedLfIZhK4bC9YrWvia 4NScMwAoJSgFLrx77fQKND69g75BXoAXffyqpPAbUYpm5+Zg2xej8uqrF62ksyhT0g47 dPvJ3dwcJj/UaD6SBISj/c89JSNqO9iwhSDDb5JJ8DLq01l2+JAc/PKh0gPI5LR9dYxj zHY6HZhqzV04JrJ4VAoArgS/6wyMWWGjonLqAr/B1ladfuH8Tyr2cEzlWnujfXrCLt43 CVAjtC2gpmZUriUE+mrgTOfpSVS9SIx3xqiSDqFNDJXX0pshvdt1gEPQhyFfkNwOauee hiXw== 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=W/wUZOH5ocCYaxtdFeNeV+AHNSModoUQ1LO31NfMKFA=; b=uSmgHeySg6fiGkdOYPWg42074eybZjgvFCDwqsvtbHJ1iqH/+HEHrait4j/duaFNWF tDOkaVtCnzf4Ng6URCMIA81f5JpsPIQwXurhuWvS89rGowr7EJzfafhi2ALDIE1R0cuz NLQtkB0mV21Hju8udIchqVwxgdAtvGlPiqCcv0OXwUAdknPLw6YMPJvsGvTjJkDGRNHx qqwhLisJTINTCBSSjujzlJRi7NoraPhg7yYleGpNI7rWMIx3qZ20Mb/yYXPDD7IwU/Xz RujLxSJOkA0QiVEWaNINs/Es2TZTyz2It4kw3/BK4I1MYUsxVUVgHhVKszGNi6RvNoDS tD+g== X-Gm-Message-State: AOAM531WKVMFDCa4kFzf+TtICXOSzsoS0OrBVjPC5J4k8Rcr8ZjG1VTf k4SRkW4HFXDtUPKBQr90k40qNg== X-Google-Smtp-Source: ABdhPJxk/ZxTXQq5EfQH/JWVl0IFoPFeJw389xqj9Jc9qAjrPGVU+9+ju+w5+Qqm8CJ4s+7o8uNVtw== X-Received: by 2002:a63:7e52:: with SMTP id o18mr2300825pgn.273.1597425256591; Fri, 14 Aug 2020 10:14:16 -0700 (PDT) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id t69sm8901617pgd.66.2020.08.14.10.14.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 14 Aug 2020 10:14:15 -0700 (PDT) Subject: Re: [PATCH] hw/arm/musicpal: Use AddressSpace for DMA transfers To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org References: <20200814125533.4047-1-f4bug@amsat.org> From: Richard Henderson Message-ID: Date: Fri, 14 Aug 2020 10:14:13 -0700 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: <20200814125533.4047-1-f4bug@amsat.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::543; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x543.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-arm@nongnu.org, Jan Kiszka Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 8/14/20 5:55 AM, Philippe Mathieu-Daudé wrote: > Allow the device to execute the DMA transfers in a different > AddressSpace. > > We keep using the system_memory address space, but via the > proper dma_memory_access() API. > > Signed-off-by: Philippe Mathieu-Daudé > --- > hw/arm/musicpal.c | 45 +++++++++++++++++++++++++++++++-------------- > 1 file changed, 31 insertions(+), 14 deletions(-) Reviewed-by: Richard Henderson r~