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=-5.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,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 BC491C433E0 for ; Wed, 3 Jun 2020 20:33:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9CEC920734 for ; Wed, 3 Jun 2020 20:33:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cKQIjUAA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726377AbgFCUdJ (ORCPT ); Wed, 3 Jun 2020 16:33:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725821AbgFCUdG (ORCPT ); Wed, 3 Jun 2020 16:33:06 -0400 Received: from mail-pj1-x1041.google.com (mail-pj1-x1041.google.com [IPv6:2607:f8b0:4864:20::1041]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06F49C08C5C0; Wed, 3 Jun 2020 13:33:04 -0700 (PDT) Received: by mail-pj1-x1041.google.com with SMTP id d6so100430pjs.3; Wed, 03 Jun 2020 13:33:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=tKK54s37lQCe/iastVr/8YgFF4Qz2iFi8Ru/giratfc=; b=cKQIjUAAnyVFabLs4fElfG3Cv10Qjq7ZEkJ+YkgCFBYDAf/VKYDrPtEJGWcTwbpzf3 k1WrTOyUZU7Z+sfuK0xWmI8Zt6xnLEFwKGl/FiSLYPKkzvJUsWXZibRZ3JjnZeN10k6m ofA1mwaq/6iB2Jo96JCPlDBbCSK3Qj7xdBf5/MhmUpPn2cVycDd0y++a21AaFr+tiCc/ fN4MVjiRnicjR18xshg8o1v0Rj5Ye1OU/JivxEHA5GlPyUZc4JkMjuU4xgHuxcyJAWi5 0WVDVd8MBw57vbfs7ZstpWTMWnCjj+BHJz9pwjynbn+eL9sNGezQSjskxN8lK71vzsBn iz5Q== 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=tKK54s37lQCe/iastVr/8YgFF4Qz2iFi8Ru/giratfc=; b=Rz6HRar5Hd6RWv/4z35x0SbS5XHajA5PtGVKRmuDbEqCwYG5OdQ0Rgv8X/rO0oAace wubc75qE2BEiLnMKHYsc94D8Ns/25OVfFBenyKgNWzM65CKUFcYiFWYdGjKYPFys3XIN vbtsob1S57LFQxQK+tjVUCFaXbfFE+IQjQhWhHddiQeVu5sxPJIKAFW6usO8WJFDNXK1 pDncmptbMh9CWp00jOsKZXaWCBKXZ006vqf6qRFTvnFPOQDWDy5gS0SCIBLkDnpfY1Sv yeCYrxV13Z+1j1Qy6haBG9jtQE1KFP+nrUonp4NpiMoMvYjJvdvUa3K/Mj0Dvf2GCR7J LL1g== X-Gm-Message-State: AOAM533vR3Yxpiz8UUKPKjxKrEAqe75Yj62KYX4964hvDq3ng+hmooJP ke5OZ4ZoZAbK4KpC9FulY+aYZPCL X-Google-Smtp-Source: ABdhPJyLkFbq2hs5iJJsfKh7chIJrewBYh8p9pOzBn1RZaK00q+ODcLjjar1be1cKhF/sxx4V04S/Q== X-Received: by 2002:a17:902:9a43:: with SMTP id x3mr1496123plv.190.1591216383928; Wed, 03 Jun 2020 13:33:03 -0700 (PDT) Received: from [10.230.188.43] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 85sm2597077pfz.145.2020.06.03.13.33.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Jun 2020 13:33:03 -0700 (PDT) Subject: Re: [PATCH v3 10/13] PCI: brcmstb: Set internal memory viewport sizes To: Jim Quinlan , linux-pci@vger.kernel.org, Christoph Hellwig , Nicolas Saenz Julienne , bcm-kernel-feedback-list@broadcom.com Cc: Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" , open list References: <20200603192058.35296-1-james.quinlan@broadcom.com> <20200603192058.35296-11-james.quinlan@broadcom.com> From: Florian Fainelli Message-ID: <40eda019-21a2-32ae-d0d7-6dc77f9d91f7@gmail.com> Date: Wed, 3 Jun 2020 13:33:00 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Firefox/68.0 Thunderbird/68.8.1 MIME-Version: 1.0 In-Reply-To: <20200603192058.35296-11-james.quinlan@broadcom.com> Content-Type: text/plain; charset=utf-8 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 On 6/3/2020 12:20 PM, Jim Quinlan wrote: > BrcmSTB PCIe controllers are intimately connected to the memory > controller(s) on the SOC. There is a "viewport" for each memory controller > that allows inbound accesses to CPU memory. Each viewport's size must be > set to a power of two, and that size must be equal to or larger than the > amount of memory each controller supports. > > Signed-off-by: Jim Quinlan Acked-by: Florian Fainelli -- Florian