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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 6134AC04AA5 for ; Mon, 15 Oct 2018 12:35:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26EB420881 for ; Mon, 15 Oct 2018 12:35:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="p8WLr+F0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26EB420881 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726713AbeJOUUK (ORCPT ); Mon, 15 Oct 2018 16:20:10 -0400 Received: from mail-lf1-f65.google.com ([209.85.167.65]:36404 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726422AbeJOUUK (ORCPT ); Mon, 15 Oct 2018 16:20:10 -0400 Received: by mail-lf1-f65.google.com with SMTP id d4-v6so13957177lfa.3; Mon, 15 Oct 2018 05:35:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=A52edW9Mv8otwfDK+/EggKbshMMHNGURXTfbMPVz1Pk=; b=p8WLr+F0ZLMASUHsM9ojmD4joousvpjjptffab5qPVZoLFpRZZUEX03RJEGURWzxvd IsucQqu/gtSXiXP7N1lBaxgqNH88T44a0rkyX2UPXW46SpIGV2QapqlVWMj+QUk4WYat PC7frgxIRLc74xffJhGY86Sfs28Y3sYpgcRFVtZ0+T6JoJ8VDLhmi+TRuFo9Mz6CcSr/ AZj6A6Dh7r5kautvnQuCQgPb0Vi+Xamry4zvVdN1qUhWLnMxmaCIuMLZp/Njgb1RAhMB kyUnr88Kt1Z7DhaPJJV9QUJtrmrItsaZ9bRWrAQI3k6UMF3fnniQOfkrTX93SBVvMf4O 2QNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=A52edW9Mv8otwfDK+/EggKbshMMHNGURXTfbMPVz1Pk=; b=B84zjufvVQWFUamtBrhB9UmUa7UEq9r/dj3E3PvtOvFOJXs4WunIpBTqPzW0cYsIfC fWcJfpV+NqBTfpW/uXeBB+X2W3Z1XW+O1CVk3IoVnb2HLRvoRFgcoDfc0dylSkRkL1hL HDioRqi2j+vyrsrn1lwpXsoeouqv1/fFAZFlm1KbWUcTOJa0b4pOVFjzSuWHKRtu689f dWNHe5rWl+vuVFFSfCr/UuZ3N0dfd7pYVPuZmJk+Hwf4pDKCAsmTOVHplD2gBn2ittmB /wakve3L3h8QP4n7GTzciMdZXlkA9Kdn5lJxhd0/dCfHrpFkWiIiZ6PGEmR1D6Ckgh/d YqkA== X-Gm-Message-State: ABuFfoggVb66iXVcfcYP1Gf1pMd2b86iaWFFoaMeHf8VAlkmZe/5CvWl rPeThkZfv/U5uIbIV6RmcbtrDw3r X-Google-Smtp-Source: ACcGV62ylTe/AQBv4S/7LNyia+z4MgzX5scYR4tAr3+5f1ncavM2w0ZgL+AEn2MMu5VB64mh0Qr0Gw== X-Received: by 2002:a19:2095:: with SMTP id g143-v6mr4144982lfg.62.1539606901741; Mon, 15 Oct 2018 05:35:01 -0700 (PDT) Received: from [192.168.2.145] ([109.252.91.118]) by smtp.googlemail.com with ESMTPSA id l14-v6sm2401037ljc.68.2018.10.15.05.35.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Oct 2018 05:35:01 -0700 (PDT) Subject: Re: [PATCH v3 0/8] Support Trusted Foundations firmware on Tegra30 From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King Cc: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org References: <20180830180421.6415-1-digetx@gmail.com> Message-ID: <91e4af24-7be7-2dbc-577b-56a852cc21ff@gmail.com> Date: Mon, 15 Oct 2018 15:34:57 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: <20180830180421.6415-1-digetx@gmail.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 8/30/18 9:04 PM, Dmitry Osipenko wrote: > Hello, > > All consumer-grade Tegra30 devices, like Nexus 7 tablet; Ouya console and > others, use Trusted Foundations firmware that doesn't allow CPU to access > secure registers directly from the Linux kernel, these accesses shall be > done via the firmware calls. This patch-series adds a full-featured support > of the Trusted Foundations firmware that opens the door for supporting of > various Tegra30-based devices in the upstream Linux kernel. > > Changelog: > > v3: - Implemented suspend-resume support. > > - Reworked arm/firmware/trusted_foundations.c a tad. Now cache > is getting properly initialized, cache enabling / disabling is > supported. > > v2: > - The "Don't apply CPU erratas in insecure mode" patch got some > cleanup, in particular resolved the messiness in > __tegra_cpu_reset_handler_data. > > - Added a comment to tf_cache_write_sec(), justifying the warning > message. > > Dmitry Osipenko (8): > ARM: trusted_foundations: Implement L2 cache initialization callback > ARM: trusted_foundations: Make prepare_idle call to take mode argument > ARM: trusted_foundations: Provide information about whether firmware > is registered > ARM: tegra: Setup L2 cache using Trusted Foundations firmware > ARM: tegra: Don't apply CPU erratas in insecure mode > ARM: tegra: Always boot CPU in ARM-mode > ARM: tegra: Support L2 cache maintenance done via firmware > ARM: tegra: Add firmware calls required for suspend-resume > > arch/arm/firmware/trusted_foundations.c | 80 +++++++++++++++++++++- > arch/arm/include/asm/firmware.h | 2 +- > arch/arm/include/asm/trusted_foundations.h | 13 ++++ > arch/arm/mach-tegra/cpuidle-tegra114.c | 3 +- > arch/arm/mach-tegra/pm.c | 43 ++++++++++++ > arch/arm/mach-tegra/reset-handler.S | 66 ++++++++++++++---- > arch/arm/mach-tegra/reset.c | 3 + > arch/arm/mach-tegra/reset.h | 9 ++- > arch/arm/mach-tegra/sleep-tegra20.S | 4 ++ > arch/arm/mach-tegra/sleep.S | 4 ++ > arch/arm/mach-tegra/tegra.c | 10 +++ > 11 files changed, 216 insertions(+), 21 deletions(-) > ping