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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 0B4D4C00A89 for ; Mon, 2 Nov 2020 21:03:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A627B20756 for ; Mon, 2 Nov 2020 21:03:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604351036; bh=QIKekPJv96xapfmbeqZyRV7a8wmsfIVO5Ur1tFoBsxQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=UYJatfLxYSSSncycUb3L0yxEyV57k5WPTXEaz1Z4xfH/5vTyKov4G6/OSHE9NSM4B AIcGJQV+ThCf7v7mrt30XInpov8X0UxOSHR5X0SvCrw6ztEjEakDUg49HBZbmKyqn2 7Zxpiez5P6BSCyTvOzCFQHay9YiIt9BvGg7AubL8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726203AbgKBVD4 (ORCPT ); Mon, 2 Nov 2020 16:03:56 -0500 Received: from mail.kernel.org ([198.145.29.99]:34386 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726109AbgKBVDz (ORCPT ); Mon, 2 Nov 2020 16:03:55 -0500 Received: from mail-oi1-f179.google.com (mail-oi1-f179.google.com [209.85.167.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BDB62208B6; Mon, 2 Nov 2020 21:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604351034; bh=QIKekPJv96xapfmbeqZyRV7a8wmsfIVO5Ur1tFoBsxQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=CRnAq/wtmByBOoYx6V660YQRskTnHR9OSZtGMGbDhceo0HaOQq8ExSCwlBTJZU67/ 7+EdwCiOci/5xcpmUCMEKbhzur7k8vzQm+klaLkVJwNkE9a4SWOr4V0X9/EFV+EPl7 hdeF+vxR15bfQ3DHwlRqmx/Ac5qW0dNeY937DLcs= Received: by mail-oi1-f179.google.com with SMTP id x1so16060285oic.13; Mon, 02 Nov 2020 13:03:54 -0800 (PST) X-Gm-Message-State: AOAM532afU8upChQxncV+3hkGuVuGQPjsAj4JxrTvfj8Q6IxGmkayGPz WiJ4j5g7Gz2kzuG5HqMwr7hpw1Q/GEHHvH+wKg== X-Google-Smtp-Source: ABdhPJxFDSpXQtYVkltDyCL0k7wfhpIaDYr2QVmapb626fGuhI4EWsl4osaRewc4U9X7lcZXH/ws1+nFb7iAqLwe9h8= X-Received: by 2002:a54:4588:: with SMTP id z8mr15353oib.147.1604351034017; Mon, 02 Nov 2020 13:03:54 -0800 (PST) MIME-Version: 1.0 References: <20201029172550.3523-1-nsaenzjulienne@suse.de> <20201029172550.3523-4-nsaenzjulienne@suse.de> In-Reply-To: <20201029172550.3523-4-nsaenzjulienne@suse.de> From: Rob Herring Date: Mon, 2 Nov 2020 15:03:42 -0600 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v5 3/7] of/address: Introduce of_dma_get_max_cpu_address() To: Nicolas Saenz Julienne Cc: Catalin Marinas , Christoph Hellwig , Ard Biesheuvel , "linux-kernel@vger.kernel.org" , Frank Rowand , Robin Murphy , linux-arm-kernel , "moderated list:BROADCOM BCM2835 ARM ARCHITECTURE" , Jeremy Linton , Linux IOMMU , devicetree@vger.kernel.org, Will Deacon , Lorenzo Pieralisi , Hanjun Guo Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Thu, Oct 29, 2020 at 12:26 PM Nicolas Saenz Julienne wrote: > > Introduce of_dma_get_max_cpu_address(), which provides the highest CPU > physical address addressable by all DMA masters in the system. It's > specially useful for setting memory zones sizes at early boot time. > > Signed-off-by: Nicolas Saenz Julienne > > --- > > Changes since v4: > - Return max address, not address limit (one-off difference) > > Changes since v3: > - use u64 with cpu_end > > Changes since v2: > - Use PHYS_ADDR_MAX > - return phys_dma_t > - Rename function > - Correct subject > - Add support to start parsing from an arbitrary device node in order > for the function to work with unit tests > > drivers/of/address.c | 42 ++++++++++++++++++++++++++++++++++++++++++ > include/linux/of.h | 7 +++++++ > 2 files changed, 49 insertions(+) Reviewed-by: Rob Herring