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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 8B066C433EF for ; Mon, 6 Sep 2021 19:33:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5434A61057 for ; Mon, 6 Sep 2021 19:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233894AbhIFTef (ORCPT ); Mon, 6 Sep 2021 15:34:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231854AbhIFTee (ORCPT ); Mon, 6 Sep 2021 15:34:34 -0400 Received: from mail-lj1-x231.google.com (mail-lj1-x231.google.com [IPv6:2a00:1450:4864:20::231]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7DF26C061575; Mon, 6 Sep 2021 12:33:29 -0700 (PDT) Received: by mail-lj1-x231.google.com with SMTP id j12so12815724ljg.10; Mon, 06 Sep 2021 12:33:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=Z/mU7ZTny5JnC2UE3lGGBUWEw5TvasZB+QO6SG1MCGs=; b=TiYbIgsx0V050p9o+tDPXbcrEgnJOkryGEOAYjBN2krSbJZXyHyozKyF9y6VCpNpdS orFZ9eySJPUHtiiQ1Af5R5W5QZ6iL+5GcDL+9yeCRFQ0JiO/Tphc9CEOrdnpuX6iV2z7 HADJPJRdyQFgAqTC/02BY+dmgwA0QSyG2UmTHYTNzKeoaQNLretR4UvQYjW1r1hryBPh 2JjulXyiN0u0sZZF+02w4beoU75btRntzFm4PhwbXs3KDBFhmMO5tFIiSJp/Wv5jlV3g v8CKNwIawIq4CZbrxki1wFLAdVPCrTtihOllPw7S6slYJBcDbD9WMywgubaTC68k1QYH ObAg== 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=Z/mU7ZTny5JnC2UE3lGGBUWEw5TvasZB+QO6SG1MCGs=; b=IUeWayyfy5EBR+hfS5Mf5QNzFrkeKCxg8ucf/pW6fHsyKC4gZx3Iqd04ayD0xTXh49 E5me64BExIMkSYENc42qiyB3QIlK7O4EV99vMxOMk8gdYfJ4Qn2oLZFSA0ISF2m4CxG6 8oYvyqCYdrh/sT/+72CFXh04pu9KiyQCevlJSRNIjjig10/zcezst8KIkXBab536XIxV lDLDhgotTdQBk/wYNKID8NXHzp+LGqZfxa6V6aqR55xuQDNAr6doid/3jhIuG/FfFFvy AuL2u7gv+ODkTw6JpJetJimb5GKAuyS2jzOhzLLcj0tjLBwcCBfDmhwLyKmmJGeGoUO2 wkag== X-Gm-Message-State: AOAM530SydPl4v0fz9ImFlOIX2Pj13Nb3A0nDfP6DXwsZPxnKVHTqAmU 1L16gRZxC7ifJyEi7AUaTWJQHtl+QNM= X-Google-Smtp-Source: ABdhPJxVJMdiokrrTDwyhv99ACVlXJgbdwy+GXg7QPlvbB8Ux2CsCxa0UjBOltqFe9M4CF2fN6SPdQ== X-Received: by 2002:a2e:90ca:: with SMTP id o10mr12168334ljg.67.1630956807540; Mon, 06 Sep 2021 12:33:27 -0700 (PDT) Received: from [192.168.2.145] (46-138-3-129.dynamic.spd-mgts.ru. [46.138.3.129]) by smtp.googlemail.com with ESMTPSA id y16sm810359lfs.145.2021.09.06.12.33.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Sep 2021 12:33:26 -0700 (PDT) Subject: Re: [PATCH 1/3] PM: domains: Drop the performance state vote for a device at detach To: Ulf Hansson Cc: "Rafael J . Wysocki" , Viresh Kumar , Linux PM , Dmitry Baryshkov , Jonathan Hunter , Thierry Reding , Rajendra Nayak , Stephan Gerhold , Bjorn Andersson , Linux ARM , Linux Kernel Mailing List References: <20210902101634.827187-1-ulf.hansson@linaro.org> <20210902101634.827187-2-ulf.hansson@linaro.org> <08335cd4-7dc8-3b8b-d63f-374585ffa373@gmail.com> <6603212d-f36c-afff-6222-8125de5b7b79@gmail.com> <66fbbc69-3e16-e07c-4e25-48d59d69fd3c@gmail.com> From: Dmitry Osipenko Message-ID: <7ee1a2eb-67d7-dcad-6039-05129d3822ec@gmail.com> Date: Mon, 6 Sep 2021 22:33:25 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org 06.09.2021 20:34, Ulf Hansson пишет: > On Mon, 6 Sept 2021 at 16:11, Dmitry Osipenko wrote: >> >> 06.09.2021 13:24, Ulf Hansson пишет: >>> On Sun, 5 Sept 2021 at 10:26, Dmitry Osipenko wrote: >>>> >>>> 03.09.2021 17:03, Ulf Hansson пишет: >>>>> On Fri, 3 Sept 2021 at 11:58, Dmitry Osipenko wrote: >>>>>> >>>>>> 03.09.2021 11:22, Ulf Hansson пишет: >>>>>>> On Fri, 3 Sept 2021 at 08:01, Dmitry Osipenko wrote: >>>>>>>> >>>>>>>> 02.09.2021 13:16, Ulf Hansson пишет: >>>>>>>>> When a device is detached from its genpd, genpd loses track of the device, >>>>>>>>> including its performance state vote that may have been requested for it. >>>>>>>>> >>>>>>>>> Rather than relying on the consumer driver to drop the performance state >>>>>>>>> vote for its device, let's do it internally in genpd when the device is >>>>>>>>> getting detached. In this way, we makes sure that the aggregation of the >>>>>>>>> votes in genpd becomes correct. >>>>>>>> >>>>>>>> This is a dangerous behaviour in a case where performance state >>>>>>>> represents voltage. If hardware is kept active on detachment, say it's >>>>>>>> always-on, then it may be a disaster to drop the voltage for the active >>>>>>>> hardware. >>>>>>>> >>>>>>>> It's safe to drop performance state only if you assume that there is a >>>>>>>> firmware behind kernel which has its own layer of performance management >>>>>>>> and it will prevent the disaster by saying 'nope, I'm not doing this'. >>>>>>>> >>>>>>>> The performance state should be persistent for a device and it should be >>>>>>>> controlled in a conjunction with runtime PM. If platform wants to drop >>>>>>>> performance state to zero on detachment, then this behaviour should be >>>>>>>> specific to that platform. >>>>>>> >>>>>>> I understand your concern, but at this point, genpd can't help to fix this. >>>>>>> >>>>>>> Genpd has no information about the device, unless it's attached to it. >>>>>>> For now and for these always on HWs, we simply need to make sure the >>>>>>> device stays attached, in one way or the other. >>>>>> >>>>>> This indeed requires to redesign GENPD to make it more coupled with a >>>>>> device, but this is not a real problem for any of the current API users >>>>>> AFAIK. Ideally the state should be persistent to make API more universal. >>>>> >>>>> Right. In fact this has been discussed in the past. In principle, the >>>>> idea was to attach to genpd at device registration, rather than at >>>>> driver probe. >>>>> >>>>> Although, this is not very easy to implement - and it seems like the >>>>> churns to do, have not been really worth it. At least so far. >>>>> >>>>>> >>>>>> Since for today we assume that device should be suspended at the time of >>>>>> the detachment (if the default OPP state isn't used), it may be better >>>>>> to add a noisy warning message if pstate!=0, keeping the state untouched >>>>>> if it's not zero. >>>>> >>>>> That would just be very silly in my opinion. >>>>> >>>>> When the device is detached (suspended or not), it may cause it's PM >>>>> domain to be powered off - and there is really nothing we can do about >>>>> that from the genpd point of view. >>>>> >>>>> As stated, the only current short term solution is to avoid detaching >>>>> the device. Anything else, would just be papering of the issue. >>>> >>>> What about to re-evaluate the performance state of the domain after >>>> detachment instead of setting the state to zero? >>> >>> I am not suggesting to set the performance state of the genpd to zero, >>> but to drop a potential vote for a performance state for the *device* >>> that is about to be detached. >> >> By removing the vote of the *device*, you will drop the performance >> state of the genpd. If device is active and it's wrong to drop its >> state, then you may cause the damage. >> >>> Calling genpd_set_performance_state(dev, 0), during detach will have >>> the same effect as triggering a re-evaluation of the performance state >>> for the genpd, but after the detach. >> >> Yes >> >>>> This way PD driver may >>>> take an action on detachment if performance isn't zero, before hardware >>>> is crashed, for example it may emit a warning. >>> >>> Not sure I got that. Exactly when do you want to emit a warning and >>> for what reason? >>> >>> Do you want to add a check somewhere to see if >>> 'gpd_data->performance_state' is non zero - and then print a warning? >> >> I want to check the 'gpd_data->performance_state' from the detachment >> callback and emit the warning + lock further performance changes in the >> PD driver since it's a error condition. > > Alright, so if I understand correctly, you intend to do the check for > the "error condition" of the device in the genpd->detach_dev() > callback? Yes > What exactly do you intend to do beyond this point, if you detect the > "error condition"? Locking further changes of the performance state > seems fragile too, especially if some other device/driver requires the > performance state to be raised. It sounds like you simply need to call > BUG_ON() then? I can lock it to high performance state. > Also note that a very similar problem exists, *before* the device gets > attached in the first place. More precisely, nothing prevents the > performance state from being set to a non-compatible value for an > always-on HW/device that hasn't been attached yet. So maybe you need > to set the maximum performance state at genpd initializations, then > use the ->sync_state() callback to very that all consumers have been > attached to the genpd provider, before allowing the state to be > changed/lowered? That is already done by the PD driver. https://elixir.bootlin.com/linux/latest/source/drivers/soc/tegra/pmc.c#L3790 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=-4.6 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 10F28C433EF for ; Mon, 6 Sep 2021 19:35:38 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 C63BF6105A for ; Mon, 6 Sep 2021 19:35:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C63BF6105A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=sfSbP98XawPU0cUP0x/NRxU/LbanVcSHWakf6g+colE=; b=KAa+d4CN6oPrwkfLsWFH5FqCEa tAvAaYU5pB+cv9fDTV4CHrfNvV5HoBJiExT3i7v9WXmM89O8tMBp8roXMp4E+uFWuh6qsA94cBo0g WVS2S7qS8XJnbOakQ0JIrMNPuT5nNvyXsc+8KvxyRsFYk7Cz7/3zdyGLpXyehDGR4+s9psyzoIQDG myHdRYVsWESv6VhVjX0/xxyA5ihOlqHJxbKjfInHfI2zELimmZqdoLqoKrsFyyCrZ5L3UrYzM/gL/ +Wb7ueBM51ZaxKkfRMF3bEZATlTPuYfTBN4+cMFVtQ314xiIKjOpqNcFAa6Q4maL3daRmuEZUbXkM gepApBbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mNKN4-001l1K-9v; Mon, 06 Sep 2021 19:33:34 +0000 Received: from mail-lj1-x22f.google.com ([2a00:1450:4864:20::22f]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mNKMz-001l0q-V2 for linux-arm-kernel@lists.infradead.org; Mon, 06 Sep 2021 19:33:31 +0000 Received: by mail-lj1-x22f.google.com with SMTP id s3so12834863ljp.11 for ; Mon, 06 Sep 2021 12:33:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=Z/mU7ZTny5JnC2UE3lGGBUWEw5TvasZB+QO6SG1MCGs=; b=TiYbIgsx0V050p9o+tDPXbcrEgnJOkryGEOAYjBN2krSbJZXyHyozKyF9y6VCpNpdS orFZ9eySJPUHtiiQ1Af5R5W5QZ6iL+5GcDL+9yeCRFQ0JiO/Tphc9CEOrdnpuX6iV2z7 HADJPJRdyQFgAqTC/02BY+dmgwA0QSyG2UmTHYTNzKeoaQNLretR4UvQYjW1r1hryBPh 2JjulXyiN0u0sZZF+02w4beoU75btRntzFm4PhwbXs3KDBFhmMO5tFIiSJp/Wv5jlV3g v8CKNwIawIq4CZbrxki1wFLAdVPCrTtihOllPw7S6slYJBcDbD9WMywgubaTC68k1QYH ObAg== 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=Z/mU7ZTny5JnC2UE3lGGBUWEw5TvasZB+QO6SG1MCGs=; b=oXfSd9ng1TtoSzBsX6HUqOXZCWpyipg1VRd8tnCoZxYRaPqf3gVcqoCEZs3GtMtCbE ab0O5BwTfDrs8GlpErm3dSpln/FIPTTXw2H0fp+QeOX8InvJDJc+MjU0VlZDAh6b+3Tm vEi3lzL8sVM8U2v9ztsdGuBtEGodwLhWezuOlpOS6KqimaQHReEN/248vUMiJcmpPhCY TT2bGelDn6WZlDJgTol/Ryrn02JrgtytKPt/xUuV+BU5jNFqPNuAW9XR8wLjihsiTd7+ Ij/l4+xJMsG2hGfJmRk6prtiTRVDCspA4YSW1swIbQafs4e1X1zc9k8TXQDkaB4HAC8U vWBg== X-Gm-Message-State: AOAM531msep4chmK2CmZToWvtZ26GTbTsr5CMBdLGCIjEnzt+aXArhx0 WhSljVOYAvuJtPFChQB0VUh2rXaSpMk= X-Google-Smtp-Source: ABdhPJxVJMdiokrrTDwyhv99ACVlXJgbdwy+GXg7QPlvbB8Ux2CsCxa0UjBOltqFe9M4CF2fN6SPdQ== X-Received: by 2002:a2e:90ca:: with SMTP id o10mr12168334ljg.67.1630956807540; Mon, 06 Sep 2021 12:33:27 -0700 (PDT) Received: from [192.168.2.145] (46-138-3-129.dynamic.spd-mgts.ru. [46.138.3.129]) by smtp.googlemail.com with ESMTPSA id y16sm810359lfs.145.2021.09.06.12.33.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Sep 2021 12:33:26 -0700 (PDT) Subject: Re: [PATCH 1/3] PM: domains: Drop the performance state vote for a device at detach To: Ulf Hansson Cc: "Rafael J . Wysocki" , Viresh Kumar , Linux PM , Dmitry Baryshkov , Jonathan Hunter , Thierry Reding , Rajendra Nayak , Stephan Gerhold , Bjorn Andersson , Linux ARM , Linux Kernel Mailing List References: <20210902101634.827187-1-ulf.hansson@linaro.org> <20210902101634.827187-2-ulf.hansson@linaro.org> <08335cd4-7dc8-3b8b-d63f-374585ffa373@gmail.com> <6603212d-f36c-afff-6222-8125de5b7b79@gmail.com> <66fbbc69-3e16-e07c-4e25-48d59d69fd3c@gmail.com> From: Dmitry Osipenko Message-ID: <7ee1a2eb-67d7-dcad-6039-05129d3822ec@gmail.com> Date: Mon, 6 Sep 2021 22:33:25 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210906_123330_049871_52D961F5 X-CRM114-Status: GOOD ( 37.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org MDYuMDkuMjAyMSAyMDozNCwgVWxmIEhhbnNzb24g0L/QuNGI0LXRgjoKPiBPbiBNb24sIDYgU2Vw dCAyMDIxIGF0IDE2OjExLCBEbWl0cnkgT3NpcGVua28gPGRpZ2V0eEBnbWFpbC5jb20+IHdyb3Rl Ogo+Pgo+PiAwNi4wOS4yMDIxIDEzOjI0LCBVbGYgSGFuc3NvbiDQv9C40YjQtdGCOgo+Pj4gT24g U3VuLCA1IFNlcHQgMjAyMSBhdCAxMDoyNiwgRG1pdHJ5IE9zaXBlbmtvIDxkaWdldHhAZ21haWwu Y29tPiB3cm90ZToKPj4+Pgo+Pj4+IDAzLjA5LjIwMjEgMTc6MDMsIFVsZiBIYW5zc29uINC/0LjR iNC10YI6Cj4+Pj4+IE9uIEZyaSwgMyBTZXB0IDIwMjEgYXQgMTE6NTgsIERtaXRyeSBPc2lwZW5r byA8ZGlnZXR4QGdtYWlsLmNvbT4gd3JvdGU6Cj4+Pj4+Pgo+Pj4+Pj4gMDMuMDkuMjAyMSAxMToy MiwgVWxmIEhhbnNzb24g0L/QuNGI0LXRgjoKPj4+Pj4+PiBPbiBGcmksIDMgU2VwdCAyMDIxIGF0 IDA4OjAxLCBEbWl0cnkgT3NpcGVua28gPGRpZ2V0eEBnbWFpbC5jb20+IHdyb3RlOgo+Pj4+Pj4+ Pgo+Pj4+Pj4+PiAwMi4wOS4yMDIxIDEzOjE2LCBVbGYgSGFuc3NvbiDQv9C40YjQtdGCOgo+Pj4+ Pj4+Pj4gV2hlbiBhIGRldmljZSBpcyBkZXRhY2hlZCBmcm9tIGl0cyBnZW5wZCwgZ2VucGQgbG9z ZXMgdHJhY2sgb2YgdGhlIGRldmljZSwKPj4+Pj4+Pj4+IGluY2x1ZGluZyBpdHMgcGVyZm9ybWFu Y2Ugc3RhdGUgdm90ZSB0aGF0IG1heSBoYXZlIGJlZW4gcmVxdWVzdGVkIGZvciBpdC4KPj4+Pj4+ Pj4+Cj4+Pj4+Pj4+PiBSYXRoZXIgdGhhbiByZWx5aW5nIG9uIHRoZSBjb25zdW1lciBkcml2ZXIg dG8gZHJvcCB0aGUgcGVyZm9ybWFuY2Ugc3RhdGUKPj4+Pj4+Pj4+IHZvdGUgZm9yIGl0cyBkZXZp Y2UsIGxldCdzIGRvIGl0IGludGVybmFsbHkgaW4gZ2VucGQgd2hlbiB0aGUgZGV2aWNlIGlzCj4+ Pj4+Pj4+PiBnZXR0aW5nIGRldGFjaGVkLiBJbiB0aGlzIHdheSwgd2UgbWFrZXMgc3VyZSB0aGF0 IHRoZSBhZ2dyZWdhdGlvbiBvZiB0aGUKPj4+Pj4+Pj4+IHZvdGVzIGluIGdlbnBkIGJlY29tZXMg Y29ycmVjdC4KPj4+Pj4+Pj4KPj4+Pj4+Pj4gVGhpcyBpcyBhIGRhbmdlcm91cyBiZWhhdmlvdXIg aW4gYSBjYXNlIHdoZXJlIHBlcmZvcm1hbmNlIHN0YXRlCj4+Pj4+Pj4+IHJlcHJlc2VudHMgdm9s dGFnZS4gSWYgaGFyZHdhcmUgaXMga2VwdCBhY3RpdmUgb24gZGV0YWNobWVudCwgc2F5IGl0J3MK Pj4+Pj4+Pj4gYWx3YXlzLW9uLCB0aGVuIGl0IG1heSBiZSBhIGRpc2FzdGVyIHRvIGRyb3AgdGhl IHZvbHRhZ2UgZm9yIHRoZSBhY3RpdmUKPj4+Pj4+Pj4gaGFyZHdhcmUuCj4+Pj4+Pj4+Cj4+Pj4+ Pj4+IEl0J3Mgc2FmZSB0byBkcm9wIHBlcmZvcm1hbmNlIHN0YXRlIG9ubHkgaWYgeW91IGFzc3Vt ZSB0aGF0IHRoZXJlIGlzIGEKPj4+Pj4+Pj4gZmlybXdhcmUgYmVoaW5kIGtlcm5lbCB3aGljaCBo YXMgaXRzIG93biBsYXllciBvZiBwZXJmb3JtYW5jZSBtYW5hZ2VtZW50Cj4+Pj4+Pj4+IGFuZCBp dCB3aWxsIHByZXZlbnQgdGhlIGRpc2FzdGVyIGJ5IHNheWluZyAnbm9wZSwgSSdtIG5vdCBkb2lu ZyB0aGlzJy4KPj4+Pj4+Pj4KPj4+Pj4+Pj4gVGhlIHBlcmZvcm1hbmNlIHN0YXRlIHNob3VsZCBi ZSBwZXJzaXN0ZW50IGZvciBhIGRldmljZSBhbmQgaXQgc2hvdWxkIGJlCj4+Pj4+Pj4+IGNvbnRy b2xsZWQgaW4gYSBjb25qdW5jdGlvbiB3aXRoIHJ1bnRpbWUgUE0uIElmIHBsYXRmb3JtIHdhbnRz IHRvIGRyb3AKPj4+Pj4+Pj4gcGVyZm9ybWFuY2Ugc3RhdGUgdG8gemVybyBvbiBkZXRhY2htZW50 LCB0aGVuIHRoaXMgYmVoYXZpb3VyIHNob3VsZCBiZQo+Pj4+Pj4+PiBzcGVjaWZpYyB0byB0aGF0 IHBsYXRmb3JtLgo+Pj4+Pj4+Cj4+Pj4+Pj4gSSB1bmRlcnN0YW5kIHlvdXIgY29uY2VybiwgYnV0 IGF0IHRoaXMgcG9pbnQsIGdlbnBkIGNhbid0IGhlbHAgdG8gZml4IHRoaXMuCj4+Pj4+Pj4KPj4+ Pj4+PiBHZW5wZCBoYXMgbm8gaW5mb3JtYXRpb24gYWJvdXQgdGhlIGRldmljZSwgdW5sZXNzIGl0 J3MgYXR0YWNoZWQgdG8gaXQuCj4+Pj4+Pj4gRm9yIG5vdyBhbmQgZm9yIHRoZXNlIGFsd2F5cyBv biBIV3MsIHdlIHNpbXBseSBuZWVkIHRvIG1ha2Ugc3VyZSB0aGUKPj4+Pj4+PiBkZXZpY2Ugc3Rh eXMgYXR0YWNoZWQsIGluIG9uZSB3YXkgb3IgdGhlIG90aGVyLgo+Pj4+Pj4KPj4+Pj4+IFRoaXMg aW5kZWVkIHJlcXVpcmVzIHRvIHJlZGVzaWduIEdFTlBEIHRvIG1ha2UgaXQgbW9yZSBjb3VwbGVk IHdpdGggYQo+Pj4+Pj4gZGV2aWNlLCBidXQgdGhpcyBpcyBub3QgYSByZWFsIHByb2JsZW0gZm9y IGFueSBvZiB0aGUgY3VycmVudCBBUEkgdXNlcnMKPj4+Pj4+IEFGQUlLLiBJZGVhbGx5IHRoZSBz dGF0ZSBzaG91bGQgYmUgcGVyc2lzdGVudCB0byBtYWtlIEFQSSBtb3JlIHVuaXZlcnNhbC4KPj4+ Pj4KPj4+Pj4gUmlnaHQuIEluIGZhY3QgdGhpcyBoYXMgYmVlbiBkaXNjdXNzZWQgaW4gdGhlIHBh c3QuIEluIHByaW5jaXBsZSwgdGhlCj4+Pj4+IGlkZWEgd2FzIHRvIGF0dGFjaCB0byBnZW5wZCBh dCBkZXZpY2UgcmVnaXN0cmF0aW9uLCByYXRoZXIgdGhhbiBhdAo+Pj4+PiBkcml2ZXIgcHJvYmUu Cj4+Pj4+Cj4+Pj4+IEFsdGhvdWdoLCB0aGlzIGlzIG5vdCB2ZXJ5IGVhc3kgdG8gaW1wbGVtZW50 IC0gYW5kIGl0IHNlZW1zIGxpa2UgdGhlCj4+Pj4+IGNodXJucyB0byBkbywgaGF2ZSBub3QgYmVl biByZWFsbHkgd29ydGggaXQuIEF0IGxlYXN0IHNvIGZhci4KPj4+Pj4KPj4+Pj4+Cj4+Pj4+PiBT aW5jZSBmb3IgdG9kYXkgd2UgYXNzdW1lIHRoYXQgZGV2aWNlIHNob3VsZCBiZSBzdXNwZW5kZWQg YXQgdGhlIHRpbWUgb2YKPj4+Pj4+IHRoZSBkZXRhY2htZW50IChpZiB0aGUgZGVmYXVsdCBPUFAg c3RhdGUgaXNuJ3QgdXNlZCksIGl0IG1heSBiZSBiZXR0ZXIKPj4+Pj4+IHRvIGFkZCBhIG5vaXN5 IHdhcm5pbmcgbWVzc2FnZSBpZiBwc3RhdGUhPTAsIGtlZXBpbmcgdGhlIHN0YXRlIHVudG91Y2hl ZAo+Pj4+Pj4gaWYgaXQncyBub3QgemVyby4KPj4+Pj4KPj4+Pj4gVGhhdCB3b3VsZCBqdXN0IGJl IHZlcnkgc2lsbHkgaW4gbXkgb3Bpbmlvbi4KPj4+Pj4KPj4+Pj4gV2hlbiB0aGUgZGV2aWNlIGlz IGRldGFjaGVkIChzdXNwZW5kZWQgb3Igbm90KSwgaXQgbWF5IGNhdXNlIGl0J3MgUE0KPj4+Pj4g ZG9tYWluIHRvIGJlIHBvd2VyZWQgb2ZmIC0gYW5kIHRoZXJlIGlzIHJlYWxseSBub3RoaW5nIHdl IGNhbiBkbyBhYm91dAo+Pj4+PiB0aGF0IGZyb20gdGhlIGdlbnBkIHBvaW50IG9mIHZpZXcuCj4+ Pj4+Cj4+Pj4+IEFzIHN0YXRlZCwgdGhlIG9ubHkgY3VycmVudCBzaG9ydCB0ZXJtIHNvbHV0aW9u IGlzIHRvIGF2b2lkIGRldGFjaGluZwo+Pj4+PiB0aGUgZGV2aWNlLiBBbnl0aGluZyBlbHNlLCB3 b3VsZCBqdXN0IGJlIHBhcGVyaW5nIG9mIHRoZSBpc3N1ZS4KPj4+Pgo+Pj4+IFdoYXQgYWJvdXQg dG8gcmUtZXZhbHVhdGUgdGhlIHBlcmZvcm1hbmNlIHN0YXRlIG9mIHRoZSBkb21haW4gYWZ0ZXIK Pj4+PiBkZXRhY2htZW50IGluc3RlYWQgb2Ygc2V0dGluZyB0aGUgc3RhdGUgdG8gemVybz8KPj4+ Cj4+PiBJIGFtIG5vdCBzdWdnZXN0aW5nIHRvIHNldCB0aGUgcGVyZm9ybWFuY2Ugc3RhdGUgb2Yg dGhlIGdlbnBkIHRvIHplcm8sCj4+PiBidXQgdG8gZHJvcCBhIHBvdGVudGlhbCB2b3RlIGZvciBh IHBlcmZvcm1hbmNlIHN0YXRlIGZvciB0aGUgKmRldmljZSoKPj4+IHRoYXQgaXMgYWJvdXQgdG8g YmUgZGV0YWNoZWQuCj4+Cj4+IEJ5IHJlbW92aW5nIHRoZSB2b3RlIG9mIHRoZSAqZGV2aWNlKiwg eW91IHdpbGwgZHJvcCB0aGUgcGVyZm9ybWFuY2UKPj4gc3RhdGUgb2YgdGhlIGdlbnBkLiBJZiBk ZXZpY2UgaXMgYWN0aXZlIGFuZCBpdCdzIHdyb25nIHRvIGRyb3AgaXRzCj4+IHN0YXRlLCB0aGVu IHlvdSBtYXkgY2F1c2UgdGhlIGRhbWFnZS4KPj4KPj4+IENhbGxpbmcgZ2VucGRfc2V0X3BlcmZv cm1hbmNlX3N0YXRlKGRldiwgMCksIGR1cmluZyBkZXRhY2ggd2lsbCBoYXZlCj4+PiB0aGUgc2Ft ZSBlZmZlY3QgYXMgdHJpZ2dlcmluZyBhIHJlLWV2YWx1YXRpb24gb2YgdGhlIHBlcmZvcm1hbmNl IHN0YXRlCj4+PiBmb3IgdGhlIGdlbnBkLCBidXQgYWZ0ZXIgdGhlIGRldGFjaC4KPj4KPj4gWWVz Cj4+Cj4+Pj4gVGhpcyB3YXkgUEQgZHJpdmVyIG1heQo+Pj4+IHRha2UgYW4gYWN0aW9uIG9uIGRl dGFjaG1lbnQgaWYgcGVyZm9ybWFuY2UgaXNuJ3QgemVybywgYmVmb3JlIGhhcmR3YXJlCj4+Pj4g aXMgY3Jhc2hlZCwgZm9yIGV4YW1wbGUgaXQgbWF5IGVtaXQgYSB3YXJuaW5nLgo+Pj4KPj4+IE5v dCBzdXJlIEkgZ290IHRoYXQuIEV4YWN0bHkgd2hlbiBkbyB5b3Ugd2FudCB0byBlbWl0IGEgd2Fy bmluZyBhbmQKPj4+IGZvciB3aGF0IHJlYXNvbj8KPj4+Cj4+PiBEbyB5b3Ugd2FudCB0byBhZGQg YSBjaGVjayBzb21ld2hlcmUgdG8gc2VlIGlmCj4+PiAnZ3BkX2RhdGEtPnBlcmZvcm1hbmNlX3N0 YXRlJyBpcyBub24gemVybyAtIGFuZCB0aGVuIHByaW50IGEgd2FybmluZz8KPj4KPj4gSSB3YW50 IHRvIGNoZWNrIHRoZSAnZ3BkX2RhdGEtPnBlcmZvcm1hbmNlX3N0YXRlJyBmcm9tIHRoZSBkZXRh Y2htZW50Cj4+IGNhbGxiYWNrIGFuZCBlbWl0IHRoZSB3YXJuaW5nICsgbG9jayBmdXJ0aGVyIHBl cmZvcm1hbmNlIGNoYW5nZXMgaW4gdGhlCj4+IFBEIGRyaXZlciBzaW5jZSBpdCdzIGEgZXJyb3Ig Y29uZGl0aW9uLgo+IAo+IEFscmlnaHQsIHNvIGlmIEkgdW5kZXJzdGFuZCBjb3JyZWN0bHksIHlv dSBpbnRlbmQgdG8gZG8gdGhlIGNoZWNrIGZvcgo+IHRoZSAiZXJyb3IgY29uZGl0aW9uIiBvZiB0 aGUgZGV2aWNlIGluIHRoZSBnZW5wZC0+ZGV0YWNoX2RldigpCj4gY2FsbGJhY2s/CgpZZXMKCj4g V2hhdCBleGFjdGx5IGRvIHlvdSBpbnRlbmQgdG8gZG8gYmV5b25kIHRoaXMgcG9pbnQsIGlmIHlv dSBkZXRlY3QgdGhlCj4gImVycm9yIGNvbmRpdGlvbiI/IExvY2tpbmcgZnVydGhlciBjaGFuZ2Vz IG9mIHRoZSBwZXJmb3JtYW5jZSBzdGF0ZQo+IHNlZW1zIGZyYWdpbGUgdG9vLCBlc3BlY2lhbGx5 IGlmIHNvbWUgb3RoZXIgZGV2aWNlL2RyaXZlciByZXF1aXJlcyB0aGUKPiBwZXJmb3JtYW5jZSBz dGF0ZSB0byBiZSByYWlzZWQuIEl0IHNvdW5kcyBsaWtlIHlvdSBzaW1wbHkgbmVlZCB0byBjYWxs Cj4gQlVHX09OKCkgdGhlbj8KCkkgY2FuIGxvY2sgaXQgdG8gaGlnaCBwZXJmb3JtYW5jZSBzdGF0 ZS4KCj4gQWxzbyBub3RlIHRoYXQgYSB2ZXJ5IHNpbWlsYXIgcHJvYmxlbSBleGlzdHMsICpiZWZv cmUqIHRoZSBkZXZpY2UgZ2V0cwo+IGF0dGFjaGVkIGluIHRoZSBmaXJzdCBwbGFjZS4gTW9yZSBw cmVjaXNlbHksIG5vdGhpbmcgcHJldmVudHMgdGhlCj4gcGVyZm9ybWFuY2Ugc3RhdGUgZnJvbSBi ZWluZyBzZXQgdG8gYSBub24tY29tcGF0aWJsZSB2YWx1ZSBmb3IgYW4KPiBhbHdheXMtb24gSFcv ZGV2aWNlIHRoYXQgaGFzbid0IGJlZW4gYXR0YWNoZWQgeWV0LiBTbyBtYXliZSB5b3UgbmVlZAo+ IHRvIHNldCB0aGUgbWF4aW11bSBwZXJmb3JtYW5jZSBzdGF0ZSBhdCBnZW5wZCBpbml0aWFsaXph dGlvbnMsIHRoZW4KPiB1c2UgdGhlIC0+c3luY19zdGF0ZSgpIGNhbGxiYWNrIHRvIHZlcnkgdGhh dCBhbGwgY29uc3VtZXJzIGhhdmUgYmVlbgo+IGF0dGFjaGVkIHRvIHRoZSBnZW5wZCBwcm92aWRl ciwgYmVmb3JlIGFsbG93aW5nIHRoZSBzdGF0ZSB0byBiZQo+IGNoYW5nZWQvbG93ZXJlZD8KClRo YXQgaXMgYWxyZWFkeSBkb25lIGJ5IHRoZSBQRCBkcml2ZXIuCgpodHRwczovL2VsaXhpci5ib290 bGluLmNvbS9saW51eC9sYXRlc3Qvc291cmNlL2RyaXZlcnMvc29jL3RlZ3JhL3BtYy5jI0wzNzkw CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1h cm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0t a2VybmVsCg==