Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp219243pxb; Thu, 2 Sep 2021 02:36:19 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyDTuF2q3rKP9FoqEJy0N1M/ru3b6jSH7zvbvYgoNDAQ6bK1OVjuHXVoMhqTr2dzQ8irRVv X-Received: by 2002:a05:6638:d11:: with SMTP id q17mr2023087jaj.63.1630575378869; Thu, 02 Sep 2021 02:36:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630575378; cv=none; d=google.com; s=arc-20160816; b=ONnZ+jHIOQeZdDkpuNFr22VmHCOOgUZN77+Rjj9upRcwi71BgWVQGWwNtMyq8QxYV6 bIfbjh4pP7uH5t9hWZFcypb/JulZmS+thbCw7LQNyznQe6mA1KFsuQtFAREHzXqNiTES 2eYDF88MY/fa6VegT8Yv0m4ZZDUwtOXnv/UDJtRoKTLEMwkakloDJbH06VCj87JCDsh+ oYwLnikLcXlq8WUIgiTWmR66+zdXiReG/DRu12soiPmOx6lnGUZHboAoAHNWMidhucQl l62se0csgs88HNz3NoboRdeNUCg1FH4Sf5BZzeG98x6ur1I6sXso7bExa+z6V6hWlmBU n49g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:date:cc:to:from:subject:message-id :dkim-signature; bh=ZPDQyXrInu0IQssPczuqbUdeSDCOSdcmMPprWdZX5fA=; b=Wo2vGxPRDUi+J/Jpivj66jwYZTzQKJ+UBI/oQl8fw1NBjOE07VmISEqHNjZZnCvImX t9Z1KZTjsvB0EE06DCat2p/kI68ZWxY8ssGD7rf5Yw6QdsSo1HgasMnXlqVmSbY8y4PQ cast54ZjeYthUmwkfTajYRFRrKQNzEmsWNTxiyFZ42ozdz+4fBy6FSyGX8gynMLipSNB QQzx96IsH6M+0Ozpe1E+KWZakdljX7yaETNxthELqzGjNv/8nccO54Gyu9rOOde5RZA7 lkgcqW00N60uR8U4VkQCi7bLD7nA2D83ZT1/qOFOBfd3x2ry2mTJljhf/GoY6ZJ6a8eO YH9A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=ukqblwj6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p6si1393104ilj.154.2021.09.02.02.36.07; Thu, 02 Sep 2021 02:36:18 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=ukqblwj6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343577AbhIBJfS (ORCPT + 99 others); Thu, 2 Sep 2021 05:35:18 -0400 Received: from mailgw01.mediatek.com ([60.244.123.138]:41156 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S245186AbhIBJfS (ORCPT ); Thu, 2 Sep 2021 05:35:18 -0400 X-UUID: 85c7b912786f47d1a103bd5831e8bd65-20210902 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=ZPDQyXrInu0IQssPczuqbUdeSDCOSdcmMPprWdZX5fA=; b=ukqblwj6wBxjKfQ9K3+7xnfsoyB0O6uqn2flde0iLc3SJ6TQLE1O9XpQUD0OXepxMyPaaZMXY3UHBZ1tgk/V3x83glIWsq9IlPJX3vzcsgEqevi5CNtjqfz+DTwBPLoOc30fIZ9IJs7Vhqn//1Gj0gtcjyestb8P90h5A9q995Q=; X-UUID: 85c7b912786f47d1a103bd5831e8bd65-20210902 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1573750120; Thu, 02 Sep 2021 17:34:10 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 2 Sep 2021 17:34:09 +0800 Received: from mhfsdcap04 (10.17.3.154) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 2 Sep 2021 17:34:06 +0800 Message-ID: Subject: Re: [PATCH v12 2/6] PCI: mediatek: Add new method to get shared pcie-cfg base address From: Chuanjia Liu To: Rob Herring CC: Bjorn Helgaas , Bjorn Helgaas , Matthias Brugger , Lorenzo Pieralisi , Ryder Lee , "Jianjun Wang" , Yong Wu , PCI , "moderated list:ARM/Mediatek SoC support" , , linux-arm-kernel , "linux-kernel@vger.kernel.org" Date: Thu, 2 Sep 2021 17:34:08 +0800 In-Reply-To: References: <20210830214317.GA27606@bjorn-Precision-5520> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVHVlLCAyMDIxLTA4LTMxIGF0IDEwOjE3IC0wNTAwLCBSb2IgSGVycmluZyB3cm90ZToNCj4g T24gTW9uLCBBdWcgMzAsIDIwMjEgYXQgMTA6MzEgUE0gQ2h1YW5qaWEgTGl1IDwNCj4gY2h1YW5q aWEubGl1QG1lZGlhdGVrLmNvbT4gd3JvdGU6DQo+ID4gDQo+ID4gT24gTW9uLCAyMDIxLTA4LTMw IGF0IDE2OjQzIC0wNTAwLCBCam9ybiBIZWxnYWFzIHdyb3RlOg0KPiA+ID4gT24gTW9uLCBBdWcg MzAsIDIwMjEgYXQgMDM6MDk6NDRQTSArMDgwMCwgQ2h1YW5qaWEgTGl1IHdyb3RlOg0KPiA+ID4g PiBPbiBGcmksIDIwMjEtMDgtMjcgYXQgMTE6NDYgLTA1MDAsIEJqb3JuIEhlbGdhYXMgd3JvdGU6 DQo+ID4gPiA+ID4gT24gTW9uLCBBdWcgMjMsIDIwMjEgYXQgMTE6Mjc6NTZBTSArMDgwMCwgQ2h1 YW5qaWEgTGl1IHdyb3RlOg0KPiA+ID4gPiA+ID4gQEAgLTk5NSw2ICsxMDA0LDE0IEBAIHN0YXRp YyBpbnQNCj4gPiA+ID4gPiA+IG10a19wY2llX3N1YnN5c19wb3dlcnVwKHN0cnVjdA0KPiA+ID4g PiA+ID4gbXRrX3BjaWUgKnBjaWUpDQo+ID4gPiA+ID4gPiAgICAgICAgICAgICAgICAgICAgICAg ICByZXR1cm4gUFRSX0VSUihwY2llLT5iYXNlKTsNCj4gPiA+ID4gPiA+ICAgICAgICAgfQ0KPiA+ ID4gPiA+ID4gDQo+ID4gPiA+ID4gPiArICAgICAgIGNmZ19ub2RlID0gb2ZfZmluZF9jb21wYXRp YmxlX25vZGUoTlVMTCwgTlVMTCwNCj4gPiA+ID4gPiA+ICsgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAibWVkaWF0ZWssZ2VuZXJpDQo+ID4gPiA+ID4gPiBjLQ0KPiA+ ID4gPiA+ID4gcGNpZWNmZyIpOw0KPiA+ID4gPiA+ID4gKyAgICAgICBpZiAoY2ZnX25vZGUpIHsN Cj4gPiA+ID4gPiA+ICsgICAgICAgICAgICAgICBwY2llLT5jZmcgPQ0KPiA+ID4gPiA+ID4gc3lz Y29uX25vZGVfdG9fcmVnbWFwKGNmZ19ub2RlKTsNCj4gPiA+ID4gPiANCj4gPiA+ID4gPiBPdGhl ciBkcml2ZXJzIGluIGRyaXZlcnMvcGNpL2NvbnRyb2xsZXIvIHVzZQ0KPiA+ID4gPiA+IHN5c2Nv bl9yZWdtYXBfbG9va3VwX2J5X3BoYW5kbGUoKSAoajcyMWUsIGRyYTd4eCwga2V5c3RvbmUsDQo+ ID4gPiA+ID4gbGF5ZXJzY2FwZSwgYXJ0cGVjNikgb3Igc3lzY29uX3JlZ21hcF9sb29rdXBfYnlf Y29tcGF0aWJsZSgpDQo+ID4gPiA+ID4gKGlteDYsDQo+ID4gPiA+ID4ga2lyaW4sIHYzLXNlbWkp Lg0KPiA+ID4gPiA+IA0KPiA+ID4gPiA+IFlvdSBzaG91bGQgZG8gaXQgdGhlIHNhbWUgd2F5IHVu bGVzcyB0aGVyZSdzIGEgbmVlZCB0byBiZQ0KPiA+ID4gPiA+IGRpZmZlcmVudC4NCj4gPiA+ID4g DQo+ID4gPiA+IEkgaGF2ZSB1c2VkIHBoYW5kbGUsIGJ1dCBSb2Igc3VnZ2VzdGVkIHRvIHNlYXJj aCBmb3IgdGhlIG5vZGUNCj4gPiA+ID4gYnkNCj4gPiA+ID4gY29tcGF0aWJsZS4NCj4gPiA+ID4g VGhlIHJlYXNvbiB3aHkgc3lzY29uX3JlZ21hcF9sb29rdXBfYnlfY29tcGF0aWJsZSgpIGlzIG5v dA0KPiA+ID4gPiB1c2VkIGhlcmUgaXMgdGhhdCB0aGUgcGNpZWNmZyBub2RlIGlzIG9wdGlvbmFs LCBhbmQgdGhlcmUgaXMgbm8NCj4gPiA+ID4gbmVlZCB0bw0KPiA+ID4gPiByZXR1cm4gZXJyb3Ig d2hlbiB0aGUgbm9kZSBpcyBub3Qgc2VhcmNoZWQuDQo+ID4gPiANCj4gPiA+IEhvdyBhYm91dCB0 aGlzPw0KPiA+ID4gDQo+ID4gPiAgIHJlZ21hcCA9IHN5c2Nvbl9yZWdtYXBfbG9va3VwX2J5X2Nv bXBhdGlibGUoIm1lZGlhdGVrLGdlbmVyaWMtDQo+ID4gPiBwY2llY2ZnIik7DQo+ID4gPiAgIGlm ICghSVNfRVJSKHJlZ21hcCkpDQo+ID4gPiAgICAgcGNpZS0+Y2ZnID0gcmVnbWFwOw0KPiANCj4g KzENCj4gDQo+ID4gDQo+ID4gSGkgQmpvcm4sDQo+ID4gDQo+ID4gV2UgbmVlZCB0byBkZWFsIHdp dGggdGhyZWUgc2l0dWF0aW9ucw0KPiA+IDEpIE5vIGVycm9yDQo+ID4gMikgVGhlIGVycm9yIG9m IHRoZSBub2RlIG5vdCBmb3VuZCwgZG9uJ3QgZG8gYW55dGhpbmcNCj4gPiAzKSBPdGhlciBlcnJv cnMsIHJldHVybiBlcnJvcnMNCj4gPiANCj4gPiBJIGd1ZXNzIHlvdSBtZWFuDQo+ID4gDQo+ID4g cmVnbWFwID0gc3lzY29uX3JlZ21hcF9sb29rdXBfYnlfY29tcGF0aWJsZSgibWVkaWF0ZWssZ2Vu ZXJpYy0NCj4gPiBwY2llY2ZnIik7DQo+ID4gICBpZiAoIUlTX0VSUihyZWdtYXApKQ0KPiA+ICAg ICAgIHBjaWUtPmNmZyA9IHJlZ21hcDsNCj4gPiAgIGVsc2UgaWYgKElTX0VSUihyZWdtYXApICYm IFBUUl9FUlIocmVnbWFwKSAhPSAtRU5PREVWKQ0KPiANCj4gWW91IGFscmVhZHkga25vdyAgSVNf RVJSIGlzIHRydWUgaGVyZS4NCj4gDQo+ID4gICAgICAgcmV0dXJuIFBUUl9FUlIocmVnbWFwKTsN Cj4gDQo+IHN5c2Nvbl9yZWdtYXBfbG9va3VwX2J5X2NvbXBhdGlibGVfb3B0aW9uYWwgaXMgdGhl IGZ1bmN0aW9uIHlvdSBhcmUNCj4gbG9va2luZyBmb3IuIFRoZSBfb3B0aW9uYWwgZmxhdm9yIGRv ZXNuJ3QgZXhpc3QsIHNvIGNyZWF0ZSBpdC4gVGhlcmUNCj4gaXMgb25lIGZvciB0aGUgcGhhbmRs ZSBsb29rdXAuDQo+IA0KPiA+IA0KPiA+IEknbSBub3Qgc3VyZSBpZiB3ZSBuZWVkIHRoaXMsIGl0 IHNlZW1zIGEgbGl0dGxlIHdlaXJkIGFuZCB0aGVyZSBhcmUNCj4gPiBtYW55IGRyaXZlcnMgaW4g b3RoZXIgc3Vic3lzdGVtcyB0aGF0IHVzZSBzeXNjb25fbm9kZV90b19yZWdtYXAoKS4NCj4gDQo+ IFlvdSBhcmUgaW1wbGVtZW50aW5nIHRoZSBleGFjdCBzYW1lIHNlcXVlbmNlIHRoYXQNCj4gc3lz Y29uX3JlZ21hcF9sb29rdXBfYnlfY29tcGF0aWJsZSgpIGRvZXMsIHNvIGNsZWFybHkgeW91IHNo b3VsZCBiZQ0KPiB1c2luZyBpdC4gVGhlIG9uZSBkaWZmZXJlbmNlIGlzIHlvdSBmb3Jnb3QgdGhl IG9mX25vZGVfcHV0KCkuDQoNCkhpLFJvYg0KVGhhbmtzIGZvciB5b3VyIGV4cGxhbmF0aW9uLiBZ b3UncmUgcmlnaHQuIA0KTm93IEkgdW5kZXJzdGFuZCB1c2Ugc3lzY29uX3JlZ21hcF9sb29rdXBf YnlfY29tcGF0aWJsZSgpIGlzIGEgYmV0dGVyDQp3YXkuIEknbGwgZm9sbG93IHlvdXIgYWR2aWNl DQogDQpyZWdtYXAgPSBzeXNjb25fcmVnbWFwX2xvb2t1cF9ieV9jb21wYXRpYmxlKCJtZWRpYXRl ayxnZW5lcmljLQ0KcGNpZWNmZyIpOw0KaWYgKCFJU19FUlIocmVnbWFwKSkNCglwY2llLT5jZmcg PSByZWdtYXA7DQplbHNlIGlmIChQVFJfRVJSKHJlZ21hcCkgIT0gLUVOT0RFVikNCglyZXR1cm4g UFRSX0VSUihyZWdtYXApOw0KDQpCZXN0IHJlZ2FyZHMNCkNodWFuamlhDQogDQo+IA0KPiBSb2IN Cj4gDQo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fDQo+ IExpbnV4LW1lZGlhdGVrIG1haWxpbmcgbGlzdA0KPiBMaW51eC1tZWRpYXRla0BsaXN0cy5pbmZy YWRlYWQub3JnDQo+IGh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8v bGludXgtbWVkaWF0ZWsNCg==