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=-8.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 7CBB1C3F2CD for ; Sun, 1 Mar 2020 23:09:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5300820866 for ; Sun, 1 Mar 2020 23:09:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="sxTPbIe4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726901AbgCAXJO (ORCPT ); Sun, 1 Mar 2020 18:09:14 -0500 Received: from mail-lj1-f195.google.com ([209.85.208.195]:42355 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726050AbgCAXJN (ORCPT ); Sun, 1 Mar 2020 18:09:13 -0500 Received: by mail-lj1-f195.google.com with SMTP id d10so9650226ljl.9; Sun, 01 Mar 2020 15:09:12 -0800 (PST) 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=Iq/KgsrwSxvpby2goIRSH5cRmhkTMkp2al5Cysx8Mb8=; b=sxTPbIe4c0Af60ar6aopox61tDGdoAuteIgqFp7R5KXi86Vy1mfYhYNHGsK14ibx3a mcMFmdbVr7glbJp7SCAeuMCo6reqCCND/4iXa2mqVx4u3dob92i6T/iQ3BthiNKhcFAt Vjpg/Fqx5zZp4gBvqmr5YZv6N/iIhSxMNQjUGLbZPFNZCFxIcInoMtXoKT9hmdben2lV wRWSl/rgp4Ex+aijp7Wl7zGPIEUfYYKfdiSnOIS2hoZLB9lbmeGHZuf3B83sKOfBdKqZ E5tc0YE9L59eEy6QLd5bGrnexepaa+S91WaccPZwuNj3jpRmtAuvtH4n9Fx9aGuRRHij OkMg== 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=Iq/KgsrwSxvpby2goIRSH5cRmhkTMkp2al5Cysx8Mb8=; b=m2f6xhH/rzk3TVkpBOg2dpHUTKcv/6d8WkbJ+JANYlxSeaSiKRMapzX1g8lvrmD3tg NwGjp7PzklEtyJOCZlrnanCOa4WNVRDSDNg0c1uCKM78O0DfhkbB/vS6kO72umrjHMzd IRAQA3MBHFIHKnv5AUx0HarGIwbzVVXQ1VEttbrPov/sxee7RD1VQ13qKL1UO55qJDrM G7a2fnPjEKIm3kyOQDb10qz0Om5v6fiQGAGtfCBsyOdGI48KLh5pH0AiB3n9xY1XkMsZ 3r22/FbpKdCXLKrQniv13aUB4RtyEOqXaUsUaZJOIxjfwJWAqowldI3IHcCeETxqeCoq SC/Q== X-Gm-Message-State: ANhLgQ3HqFPaiiFHiLPBSxFGu1OO1K2TI6Q2HIUN76IqvJpuIZpQJ/Cv jR9d3nEC2PqXnJ7Upy3McCaUGEz/ X-Google-Smtp-Source: ADFU+vvVUAThE91+zafUv8AYR5mKTxcSsZQoMmBQquYfQex92iJVJ4aUm5nQ5wDKyofWYP7XnhhrXg== X-Received: by 2002:a2e:8490:: with SMTP id b16mr9849000ljh.282.1583104151055; Sun, 01 Mar 2020 15:09:11 -0800 (PST) Received: from [192.168.2.145] (79-139-233-37.dynamic.spd-mgts.ru. [79.139.233.37]) by smtp.googlemail.com with ESMTPSA id f14sm9401803lfh.40.2020.03.01.15.09.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Mar 2020 15:09:09 -0800 (PST) Subject: Re: [PATCH v1 1/3] mmc: core: Add raw_boot_mult field to mmc_ext_csd To: Avri Altman , Jens Axboe , Thierry Reding , Jonathan Hunter , =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= , David Heidelberg , Peter Geis , Stephen Warren , Nicolas Chauvet , Ulf Hansson , Adrian Hunter , Billy Laws Cc: "linux-tegra@vger.kernel.org" , "linux-block@vger.kernel.org" , Andrey Danin , Gilles Grandou , Ryan Grachek , "linux-mmc@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <20200224231841.26550-1-digetx@gmail.com> <20200224231841.26550-2-digetx@gmail.com> From: Dmitry Osipenko Message-ID: <0fb5f6ec-8aa0-3bc8-e6cc-8e061c401839@gmail.com> Date: Mon, 2 Mar 2020 02:09:08 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 01.03.2020 13:50, Avri Altman пишет: > Hi, >> >> >> In order to support parsing of NVIDIA Tegra Partition Table format, we >> need to know the BOOT_SIZE_MULT value of the Extended CSD register >> because >> NVIDIA's bootloader linearizes the boot0/boot1/main partitions into a >> single virtual space, and thus, all partition addresses are shifted by >> the size of boot0 + boot1 partitions. >> >> Signed-off-by: Dmitry Osipenko >> --- >> drivers/mmc/core/mmc.c | 2 ++ >> include/linux/mmc/card.h | 1 + >> 2 files changed, 3 insertions(+) >> >> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c >> index f6912ded652d..88e5b4224d3c 100644 >> --- a/drivers/mmc/core/mmc.c >> +++ b/drivers/mmc/core/mmc.c >> @@ -417,6 +417,8 @@ static int mmc_decode_ext_csd(struct mmc_card >> *card, u8 *ext_csd) >> ext_csd[EXT_CSD_ERASE_TIMEOUT_MULT]; >> card->ext_csd.raw_hc_erase_grp_size = >> ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]; >> + card->ext_csd.raw_boot_mult = >> + ext_csd[EXT_CSD_BOOT_MULT]; > You might want at this point multiply it by 128K, > And get rid of: part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17; > Below... But it's not a *raw* _boot_mult anymore then. I'm not sure that it will be a worthwhile change.