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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 726D7C2D0C3 for ; Wed, 18 Dec 2019 10:40:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 462BB24650 for ; Wed, 18 Dec 2019 10:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576665625; bh=5bZCGn/GXGa5aad5uPRv4ZdpPr/04x414zgpKdfbZu8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=CKW7jM5Bs9Ago1kJhmMu7ZG/hc3njVXNzNajD4/4CqrMJvXXVivv9iS/A4OxIxpcH v7oao1R+TXO1ucUjNaW/heqpsKgPuv5bEWTfTk+Cptb/8aA8KpJr8jj0uroJwZ+Hg+ 0INUoEM0u4RjTYbR0Yam1TCTGM1heGR6B6cuBdgY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726752AbfLRKkY (ORCPT ); Wed, 18 Dec 2019 05:40:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:42656 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725930AbfLRKkY (ORCPT ); Wed, 18 Dec 2019 05:40:24 -0500 Received: from mail-lj1-f173.google.com (mail-lj1-f173.google.com [209.85.208.173]) (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 0E49724676; Wed, 18 Dec 2019 10:40:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576665623; bh=5bZCGn/GXGa5aad5uPRv4ZdpPr/04x414zgpKdfbZu8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=ZrSOZdetulT42fMjQOuklv7NklOx/gr8EA5jZD58Irl9ACcYViXSk8dbmzTFIn0Jp mflfOGWT5qVjlmP/iIsNRMBBwD1i5Gejd6j4sSb1izRoGPj2nZ2scoKCDD/chfNsVW gDy5ozp6hlXqi9z3zTHX8rrEhkpTzouPlZDws/oA= Received: by mail-lj1-f173.google.com with SMTP id l2so1559128lja.6; Wed, 18 Dec 2019 02:40:22 -0800 (PST) X-Gm-Message-State: APjAAAXqTJ4UeLyxqjxbxHI6R4rxMkkpm9/nmtEMAgITk+lp6rc+P+L2 d0tisFcq62PRNvB2qTEbN2xoP4DQtRd7zb8WU6g= X-Google-Smtp-Source: APXvYqy9BSFqzHfHC6Wrxvxu1fQvWCo3Cw7lJ3r6BLXC5RoWyqK8B442YwRfMVCIyBnxznfjK0x9K/Y2O5NFySzEQUM= X-Received: by 2002:a05:651c:106f:: with SMTP id y15mr1238622ljm.63.1576665620967; Wed, 18 Dec 2019 02:40:20 -0800 (PST) MIME-Version: 1.0 References: <20190919142236.4071-1-a.swigon@samsung.com> <20190919142236.4071-10-a.swigon@samsung.com> <35053bad-3f08-190a-0ffa-9aacd16da272@samsung.com> <95ac6056bc6c790b1de7e975f44faa320fd9876f.camel@samsung.com> In-Reply-To: <95ac6056bc6c790b1de7e975f44faa320fd9876f.camel@samsung.com> From: Chanwoo Choi Date: Wed, 18 Dec 2019 19:39:44 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC PATCH v2 09/11] devfreq: exynos-bus: Add interconnect functionality to exynos-bus To: =?UTF-8?B?QXJ0dXIgxZp3aWdvxYQ=?= Cc: Chanwoo Choi , devicetree , linux-arm-kernel , linux-samsung-soc , linux-kernel , Linux PM list , dri-devel , MyungJoo Ham , inki.dae@samsung.com, Seung-Woo Kim , georgi.djakov@linaro.org, Leonard Crestez , Marek Szyprowski , Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, 2019=EB=85=84 12=EC=9B=94 18=EC=9D=BC (=EC=88=98) =EC=98=A4=ED=9B=84 7:19, = Artur =C5=9Awigo=C5=84 =EB=8B=98=EC=9D=B4 =EC=9E=91= =EC=84=B1: > > Hi, > > Thank you for the review. > > On Mon, 2019-12-16 at 09:44 +0900, Chanwoo Choi wrote: > > Hi, > > > > On 9/19/19 11:22 PM, Artur =C5=9Awigo=C5=84 wrote: > > > From: Artur =C5=9Awigo=C5=84 > > > > > > This patch adds interconnect functionality to the exynos-bus devfreq > > > driver. > > > > > > The SoC topology is a graph (or, more specifically, a tree) and most = of > > > its edges are taken from the devfreq parent-child hierarchy (cf. > > > Documentation/devicetree/bindings/devfreq/exynos-bus.txt). Due to > > > unspecified relative probing order, -EPROBE_DEFER may be propagated t= o > > > guarantee that a child is probed before its parent. > > > > > > Each bus is now an interconnect provider and an interconnect node as = well > > > (cf. Documentation/interconnect/interconnect.rst), i.e. every bus reg= isters > > > itself as a node. Node IDs are not hardcoded but rather assigned at > > > runtime, in probing order (subject to the above-mentioned exception > > > regarding relative order). This approach allows for using this driver= with > > > various Exynos SoCs. > > > > > > Frequencies requested via the interconnect API for a given node are > > > propagated to devfreq using dev_pm_qos_update_request(). Please note = that > > > it is not an error when CONFIG_INTERCONNECT is 'n', in which case all > > > interconnect API functions are no-op. > > > > > > Signed-off-by: Artur =C5=9Awigo=C5=84 > > > --- > > > drivers/devfreq/exynos-bus.c | 153 +++++++++++++++++++++++++++++++++= ++ > > > 1 file changed, 153 insertions(+) > > > > > > diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bu= s.c > > > index 8d44810cac69..e0232202720d 100644 > > > --- a/drivers/devfreq/exynos-bus.c > > > +++ b/drivers/devfreq/exynos-bus.c > > > @@ -14,14 +14,19 @@ > > > #include > > > #include > > > #include > > > +#include > > > +#include > > > #include > > > #include > > > #include > > > +#include > > > #include > > > #include > > > > > > #define DEFAULT_SATURATION_RATIO 40 > > > > > > +#define icc_units_to_khz(x) ((x) / 8) > > > > icc_units_to_khz() -> kpbs_to_khz() > > OK > > > > + > > > struct exynos_bus { > > > struct device *dev; > > > > > > @@ -35,6 +40,12 @@ struct exynos_bus { > > > struct opp_table *opp_table; > > > struct clk *clk; > > > unsigned int ratio; > > > + > > > + /* One provider per bus, one node per provider */ > > > + struct icc_provider provider; > > > + struct icc_node *node; > > > + > > > + struct dev_pm_qos_request qos_req; > > > }; > > > > > > /* > > > @@ -59,6 +70,13 @@ exynos_bus_ops_edev(enable_edev); > > > exynos_bus_ops_edev(disable_edev); > > > exynos_bus_ops_edev(set_event); > > > > > > +static int exynos_bus_next_id(void) > > > +{ > > > + static DEFINE_IDA(exynos_bus_icc_ida); > > > + > > > + return ida_alloc(&exynos_bus_icc_ida, GFP_KERNEL); > > > +} > > > + > > > static int exynos_bus_get_event(struct exynos_bus *bus, > > > struct devfreq_event_data *edata) > > > { > > > @@ -171,6 +189,38 @@ static void exynos_bus_passive_exit(struct devic= e *dev) > > > clk_disable_unprepare(bus->clk); > > > } > > > > > > +static int exynos_bus_icc_set(struct icc_node *src, struct icc_node = *dst) > > > +{ > > > + struct exynos_bus *src_bus =3D src->data, *dst_bus =3D dst->data; > > > + s32 src_freq =3D icc_units_to_khz(src->avg_bw); > > > + s32 dst_freq =3D icc_units_to_khz(dst->avg_bw); > > > + > > > + dev_pm_qos_update_request(&src_bus->qos_req, src_freq); > > > > Have to check the return value. > > If return error, show the waring with dev_warn. > > OK, I will change it to: > > ret =3D dev_pm_qos_update_request(&src_bus->qos_req, src_freq); > if (ret < 0) { > dev_warn(src_bus->dev, "failed to update PM QoS request"); > return ret; If you return right after, better to use dev_err. If you use dev_warn, just show the warning message without return. > } > > > > + dev_pm_qos_update_request(&dst_bus->qos_req, dst_freq); > > > > ditto. > > OK (same as above). ditto. > > > > + > > > + return 0; > > > +} > > > + > > > +static int exynos_bus_icc_aggregate(struct icc_node *node, u32 tag, = u32 avg_bw, > > > + u32 peak_bw, u32 *agg_avg, u32 *agg_p= eak) > > > +{ > > > + *agg_avg +=3D avg_bw; > > > + *agg_peak =3D max(*agg_peak, peak_bw); > > > + > > > + return 0; > > > +} > > > + > > > +static struct icc_node *exynos_bus_icc_xlate(struct of_phandle_args = *spec, > > > + void *data) > > > +{ > > > + struct exynos_bus *bus =3D data; > > > + > > > + if (spec->np !=3D bus->dev->of_node) > > > + return ERR_PTR(-EINVAL); > > > + > > > + return bus->node; > > > +} > > > + > > > static int exynos_bus_parent_parse_of(struct device_node *np, > > > struct exynos_bus *bus) > > > { > > > @@ -366,6 +416,101 @@ static int exynos_bus_profile_init_passive(stru= ct exynos_bus *bus, > > > return 0; > > > } > > > > > > +static int exynos_bus_icc_connect(struct exynos_bus *bus) > > > +{ > > > + struct device_node *np =3D bus->dev->of_node; > > > + struct devfreq *parent_devfreq; > > > + struct icc_node *parent_node =3D NULL; > > > + struct of_phandle_args args; > > > + int ret =3D 0; > > > + > > > + parent_devfreq =3D devfreq_get_devfreq_by_phandle(bus->dev, 0); > > > + if (!IS_ERR(parent_devfreq)) { > > > + struct exynos_bus *parent_bus; > > > + > > > + parent_bus =3D dev_get_drvdata(parent_devfreq->dev.parent= ); > > > + parent_node =3D parent_bus->node; > > > + } else { > > > + /* Look for parent in DT */ > > > + int num =3D of_count_phandle_with_args(np, "parent", > > > + "#interconnect-cells= "); > > > + if (num !=3D 1) > > > + goto out; /* 'parent' is optional */ > > > + > > > + ret =3D of_parse_phandle_with_args(np, "parent", > > > + "#interconnect-cells", > > > + 0, &args); > > > > > > Actually, I agree your approach. I think that it is very useful > > and necessary to guarantee the PM QoS requirements between devices. > > > > But, > > As I already commented, I'm not sure that the "parent" property > > is proper for only this driver. If possible, you better to get > > the parent phandle through other way like OF graph. > > > > If you suggest the standard way to make the tree between > > the exynos-bus, I'll agree. > > As I commented in the answer to patch 08, I will use the > 'exynos,interconnect-parent-node' property for bus_display, > bus_leftbus and bus_dmc. OK. > > > Also, for interconnect path, you have to add the connection > > between 'bus_display' and 'bus_leftbus' regardless > > of the existing 'devfreq' property. > > - bus_display - bus_leftbus - bus_dmc > > > > > + if (ret < 0) > > > + goto out; > > > + > > > + of_node_put(args.np); > > > + > > > + parent_node =3D of_icc_get_from_provider(&args); > > > + if (IS_ERR(parent_node)) { > > > + /* May be -EPROBE_DEFER */ > > > + ret =3D PTR_ERR(parent_node); > > > + goto out; > > > + } > > > + } > > > + > > > + ret =3D icc_link_create(bus->node, parent_node->id); > > > + > > > +out: > > > + return ret; > > > +} > > > + > > > +static int exynos_bus_icc_init(struct exynos_bus *bus) > > > +{ > > > + struct device *dev =3D bus->dev; > > > + struct icc_provider *provider =3D &bus->provider; > > > + struct icc_node *node; > > > + int id, ret; > > > + > > > + /* Initialize the interconnect provider */ > > > + provider->set =3D exynos_bus_icc_set; > > > + provider->aggregate =3D exynos_bus_icc_aggregate; > > > + provider->xlate =3D exynos_bus_icc_xlate; > > > + provider->dev =3D dev; > > > + provider->data =3D bus; > > > + > > > + ret =3D icc_provider_add(provider); > > > + if (ret < 0) > > > + goto out; > > > > Return error without goto because there is no any requirement > > to free the resource before. > > OK. > > > > + > > > + ret =3D id =3D exynos_bus_next_id(); > > > + if (ret < 0) > > > + goto err_node; > > > + > > > + node =3D icc_node_create(id); > > > + if (IS_ERR(node)) { > > > + ret =3D PTR_ERR(node); > > > + goto err_node; > > > + } > > > + > > > + bus->node =3D node; > > > + node->name =3D dev->of_node->name; > > > + node->data =3D bus; > > > + icc_node_add(node, provider); > > > + > > > + ret =3D exynos_bus_icc_connect(bus); > > > + if (ret < 0) > > > + goto err_connect; > > > + > > > + ret =3D dev_pm_qos_add_request(bus->devfreq->dev.parent, &bus->qo= s_req, > > > > Check whether this line is over 80 char. > > It looks like 77 columns to me. > > > > > > + DEV_PM_QOS_MIN_FREQUENCY, 0); > > > > Check the return value. > > OK. > > > > > > + > > > +out: > > > > Remove this goto due to not necessary. > > > > > + return ret; > > > > return 0; > > OK. > > Please also note that this function as well as exynos_bus_icc_connect() > will > slightly change in v3 due to the changes regarding DT properties. > > > > > > + > > > +err_connect: > > > + icc_node_del(node); > > > + icc_node_destroy(id); > > > +err_node: > > > + icc_provider_del(provider); > > > + > > > + return ret; > > > +} > > > + > > > static int exynos_bus_probe(struct platform_device *pdev) > > > { > > > struct device *dev =3D &pdev->dev; > > > @@ -415,6 +560,14 @@ static int exynos_bus_probe(struct platform_devi= ce *pdev) > > > if (ret < 0) > > > goto err; > > > > > > + /* > > > + * Initialize interconnect provider. A return value of -ENOTSUPP = means > > > + * that CONFIG_INTERCONNECT is disabled. > > > + */ > > > + ret =3D exynos_bus_icc_init(bus); > > > + if (ret < 0 && ret !=3D -ENOTSUPP) > > > + goto err; > > > > Print error message. > > dev_err(dev, "failed to initialize the interconnect provider"); > > OK. > > > > > > + > > > max_state =3D bus->devfreq->profile->max_state; > > > min_freq =3D (bus->devfreq->profile->freq_table[0] / 1000); > > > max_freq =3D (bus->devfreq->profile->freq_table[max_state - 1] / = 1000); > > > > > > > > > Best regards, > -- > Artur =C5=9Awigo=C5=84 > Samsung R&D Institute Poland > Samsung Electronics > > --=20 Best Regards, Chanwoo Choi 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=-7.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS 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helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihWkl-0004IA-DD; Wed, 18 Dec 2019 10:40:27 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ihWkh-0004Hh-Sn for linux-arm-kernel@lists.infradead.org; Wed, 18 Dec 2019 10:40:25 +0000 Received: from mail-lj1-f180.google.com (mail-lj1-f180.google.com [209.85.208.180]) (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 03CF12465E for ; Wed, 18 Dec 2019 10:40:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576665623; bh=5bZCGn/GXGa5aad5uPRv4ZdpPr/04x414zgpKdfbZu8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=ZrSOZdetulT42fMjQOuklv7NklOx/gr8EA5jZD58Irl9ACcYViXSk8dbmzTFIn0Jp mflfOGWT5qVjlmP/iIsNRMBBwD1i5Gejd6j4sSb1izRoGPj2nZ2scoKCDD/chfNsVW gDy5ozp6hlXqi9z3zTHX8rrEhkpTzouPlZDws/oA= Received: by mail-lj1-f180.google.com with SMTP id u17so1564040lja.4 for ; Wed, 18 Dec 2019 02:40:22 -0800 (PST) X-Gm-Message-State: APjAAAXlrKEj+b8oiCvHZlCvAxUdvBeXyxK5uEo9NELNqeDUBu8neOL/ 4N4BKt1r2EiZyz0Yx7PU2CTcpyrwfZgo8ogacoY= X-Google-Smtp-Source: APXvYqy9BSFqzHfHC6Wrxvxu1fQvWCo3Cw7lJ3r6BLXC5RoWyqK8B442YwRfMVCIyBnxznfjK0x9K/Y2O5NFySzEQUM= X-Received: by 2002:a05:651c:106f:: with SMTP id y15mr1238622ljm.63.1576665620967; Wed, 18 Dec 2019 02:40:20 -0800 (PST) MIME-Version: 1.0 References: <20190919142236.4071-1-a.swigon@samsung.com> <20190919142236.4071-10-a.swigon@samsung.com> <35053bad-3f08-190a-0ffa-9aacd16da272@samsung.com> <95ac6056bc6c790b1de7e975f44faa320fd9876f.camel@samsung.com> In-Reply-To: <95ac6056bc6c790b1de7e975f44faa320fd9876f.camel@samsung.com> From: Chanwoo Choi Date: Wed, 18 Dec 2019 19:39:44 +0900 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC PATCH v2 09/11] devfreq: exynos-bus: Add interconnect functionality to exynos-bus To: =?UTF-8?B?QXJ0dXIgxZp3aWdvxYQ=?= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191218_024023_976776_84810284 X-CRM114-Status: GOOD ( 36.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree , linux-samsung-soc , Linux PM list , Bartlomiej Zolnierkiewicz , Seung-Woo Kim , linux-kernel , dri-devel , inki.dae@samsung.com, Chanwoo Choi , MyungJoo Ham , Krzysztof Kozlowski , Leonard Crestez , georgi.djakov@linaro.org, linux-arm-kernel , Marek Szyprowski Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGksCgoyMDE564WEIDEy7JuUIDE47J28ICjsiJgpIOyYpO2bhCA3OjE5LCBBcnR1ciDFmndpZ2/F 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smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 45AAF89A86; Wed, 18 Dec 2019 10:40:25 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id A0AF489A67 for ; Wed, 18 Dec 2019 10:40:23 +0000 (UTC) Received: from mail-lj1-f179.google.com (mail-lj1-f179.google.com [209.85.208.179]) (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 0085424650 for ; Wed, 18 Dec 2019 10:40:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576665623; bh=5bZCGn/GXGa5aad5uPRv4ZdpPr/04x414zgpKdfbZu8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=ZrSOZdetulT42fMjQOuklv7NklOx/gr8EA5jZD58Irl9ACcYViXSk8dbmzTFIn0Jp mflfOGWT5qVjlmP/iIsNRMBBwD1i5Gejd6j4sSb1izRoGPj2nZ2scoKCDD/chfNsVW 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to exynos-bus To: =?UTF-8?B?QXJ0dXIgxZp3aWdvxYQ=?= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree , linux-samsung-soc , Linux PM list , Bartlomiej Zolnierkiewicz , Seung-Woo Kim , linux-kernel , dri-devel , Chanwoo Choi , MyungJoo Ham , Krzysztof Kozlowski , Leonard Crestez , georgi.djakov@linaro.org, linux-arm-kernel , Marek Szyprowski Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" SGksCgoyMDE564WEIDEy7JuUIDE47J28ICjsiJgpIOyYpO2bhCA3OjE5LCBBcnR1ciDFmndpZ2/F hCA8YS5zd2lnb25Ac2Ftc3VuZy5jb20+64uY7J20IOyekeyEsToKPgo+IEhpLAo+Cj4gVGhhbmsg eW91IGZvciB0aGUgcmV2aWV3Lgo+Cj4gT24gTW9uLCAyMDE5LTEyLTE2IGF0IDA5OjQ0ICswOTAw LCBDaGFud29vIENob2kgd3JvdGU6Cj4gPiBIaSwKPiA+Cj4gPiBPbiA5LzE5LzE5IDExOjIyIFBN 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