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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 17AB6C43603 for ; Thu, 5 Dec 2019 09:01:25 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 EBA8C205ED for ; Thu, 5 Dec 2019 09:01:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EBA8C205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8882F6F604; Thu, 5 Dec 2019 09:01:22 +0000 (UTC) Received: from NAM02-CY1-obe.outbound.protection.outlook.com (mail-eopbgr760075.outbound.protection.outlook.com [40.107.76.75]) by gabe.freedesktop.org (Postfix) with ESMTPS id 36BC16F5FC; Thu, 5 Dec 2019 09:01:21 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bR4dlc3pglR6dLuR+c/yaz7fPS5X2CFKpZZOPk8JwJwZmVgjz4qTKzaM87hcUTH3aKb/A3kRBeO5PGfF7VJjCp4yt0mQNdO1KTpYEom9baNIg49QPBhh6YZCk7VjBnmzxi0B93OZ3T2KpDr9uEfNgRy/UmitcDA+l+a1ghOtPR7ZCW8B563WqRIcX+TeLvAuVIbGWBdUJsMgXlBhsQ/U73fIgCdgAG3P4GwbQz3yzA0DaDX1REyPUkEEepuJaJwQGYV3rTxzhlVpm7tLDscFzunktSXS/UTwD1SEeynoV5/iQ/UJYmpprwc1vYyM9QvMJ+uKwJ+AjAZdgcQNQDzXaQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=GtpycWjpGMFCC18LLaJIvDLvCmBLoJJGljbfNMiSaRIuvoDCqUh/0R18bXR7luS18srO8vwzjUw6LzMB7u9dSJiai8kVp3dw9wGiYrF6LwV59Z9DZIoJjV/W6MAyLeniB31pTq74TSX1kZe+o1SEJK2kxjF3t+zi5ZkX3ewLiCAAf3dhH/f3ldpZCrXvHIZrbDNT6/MztSgufUNBwTWnjiumi2vIlmT7iCsTgoAB0HxazXgf0gW+4jvTYyEv0dHn7mFce58iR5MLuixwn9714RHlCJfJb7B4ztxZvzzC67BHhC/yKQuzsG2zcuxHKtFVTYevLcZO12eTaz4AQbdPng== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.freedesktop.org smtp.mailfrom=amd.com; dmarc=permerror action=none header.from=amd.com; dkim=none (message not signed); arc=none Received: from BN6PR12CA0030.namprd12.prod.outlook.com (2603:10b6:405:70::16) by DM6PR12MB3786.namprd12.prod.outlook.com (2603:10b6:5:14a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.14; Thu, 5 Dec 2019 09:01:18 +0000 Received: from DM6NAM11FT063.eop-nam11.prod.protection.outlook.com (2a01:111:f400:7eaa::206) by BN6PR12CA0030.outlook.office365.com (2603:10b6:405:70::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.13 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) Received: from SATLEXMB02.amd.com (165.204.84.17) by DM6NAM11FT063.mail.protection.outlook.com (10.13.172.219) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.2451.23 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Received: from SATLEXMB02.amd.com (10.181.40.143) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Thu, 5 Dec 2019 03:01:17 -0600 Received: from wayne-System-Product-Name.amd.com (10.180.168.240) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Thu, 5 Dec 2019 03:01:15 -0600 From: Wayne Lin To: , Subject: [PATCH v2] drm/dp_mst: Remove VCPI while disabling topology mgr Date: Thu, 5 Dec 2019 17:00:43 +0800 Message-ID: <20191205090043.7580-1-Wayne.Lin@amd.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:165.204.84.17; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(4636009)(346002)(39860400002)(396003)(376002)(136003)(428003)(199004)(189003)(2616005)(426003)(53416004)(51416003)(7696005)(1076003)(4326008)(14444005)(50226002)(305945005)(186003)(26005)(478600001)(336012)(36756003)(16586007)(54906003)(2906002)(5660300002)(48376002)(110136005)(81166006)(81156014)(8676002)(316002)(8936002)(70206006)(356004)(6666004)(70586007)(50466002)(86362001); DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR12MB3786; H:SATLEXMB02.amd.com; FPR:; SPF:None; LANG:en; PTR:InfoDomainNonexistent; A:1; MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-TrafficTypeDiagnostic: DM6PR12MB3786: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2449; X-Forefront-PRVS: 02426D11FE X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: loDQL3WHreVe5duDJXX5v2aUSlsTHz7u4rHWMiET8n81481+hd2BeYcM6uzq7cUOhWbc/06OvGWLtpzJ2yc9k429dIhvmYa7CKMFg7EHF/ZPMw/otjzNjrjAVvUha0Ef2IfGnIykCKp1GCtXH2PaO/SaW0ctYSRJOBSePXoDMTChVB/EaWlwe5idYjJd4m4hi13mvInUWfGr96scdAdH4R+TFuBN/f0RBa9s2XWMy80NhT23FHKuZ9dCAey/ilDxt3gfd7kkcieVtY/F0uPhM3e3VA2P7OUUtzHBKgkxukzUyvqLg3OLNYTdYsrReV77959xLtJN5owbmqT6xiuMwDzeJNkQMxCSJ74jE6KFZaQx2cY18vlysbH5DflKEe3tGdJvIcyu0xS2XH/TlXxzYzryZxbUu36ZeNsFJOw2kFygNauBmWeuvIRIuzXIxDBr X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Dec 2019 09:01:18.0269 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB02.amd.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3786 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=N39/J981y635pBN4yG62PlLzIbfTQJUlHFMU7mexgJRsPmWdpbGXRKKYnZf2CV5HLCEvwqmoKjIQwVJlKZqJmksBe4aJhhjsimA1ZcEkODH2ngHUky9nQDHribG43Y1R5HRDvi5Nh5sTFn3DEvFMPfLcXK9fqitW/oTtjYxp8/A= X-Mailman-Original-Authentication-Results: spf=none (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; lists.freedesktop.org; dkim=none (message not signed) header.d=none;lists.freedesktop.org; dmarc=permerror action=none header.from=amd.com; X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stable@vger.kernel.org, jerry.zuo@amd.com, Wayne Lin , harry.wentland@amd.com, Nicholas.Kazlauskas@amd.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" W1doeV0KClRoaXMgcGF0Y2ggaXMgdHJ5aW5nIHRvIGFkZHJlc3MgdGhlIGlzc3VlIG9ic2VydmVk IHdoZW4gaG90cGx1ZyBEUApkYWlzeSBjaGFpbiBtb25pdG9ycy4KCmUuZy4Kc3JjLW1zdGItbXN0 Yi1zc3QgLT4gc3JjICh1bnBsdWcpIG1zdGItbXN0Yi1zc3QgLT4gc3JjLW1zdGItbXN0Yi1zc3QK KHBsdWcgaW4gYWdhaW4pCgpPbmNlIHVucGx1ZyBhIERQIE1TVCBjYXBhYmxlIGRldmljZSwgZHJp dmVyIHdpbGwgY2FsbApkcm1fZHBfbXN0X3RvcG9sb2d5X21ncl9zZXRfbXN0KCkgdG8gZGlzYWJs ZSBNU1QuIEluIHRoaXMgZnVuY3Rpb24sCml0IGNsZWFucyBkYXRhIG9mIHRvcG9sb2d5IG1hbmFn ZXIgd2hpbGUgZGlzYWJsaW5nIG1zdF9zdGF0ZS4gSG93ZXZlciwKaXQgZG9lc24ndCBjbGVhbiB1 cCB0aGUgcHJvcG9zZWRfdmNwaXMgb2YgdG9wb2xvZ3kgbWFuYWdlci4KSWYgcHJvcG9zZWRfdmNw aSBpcyBub3QgcmVzZXQsIG9uY2UgcGx1ZyBpbiBNU1QgZGFpc3kgY2hhaW4gbW9uaXRvcnMKbGF0 ZXIsIGNvZGUgd2lsbCBmYWlsIGF0IGNoZWNraW5nIHBvcnQgdmFsaWRhdGlvbiB3aGlsZSB0cnlp bmcgdG8KYWxsb2NhdGUgcGF5bG9hZHMuCgpXaGVuIE1TVCBjYXBhYmxlIGRldmljZSBpcyBwbHVn Z2VkIGluIGFnYWluIGFuZCB0cnkgdG8gYWxsb2NhdGUKcGF5bG9hZHMgYnkgY2FsbGluZyBkcm1f ZHBfdXBkYXRlX3BheWxvYWRfcGFydDEoKSwgdGhpcwpmdW5jdGlvbiB3aWxsIGl0ZXJhdGUgb3Zl ciBhbGwgcHJvcG9zZWQgdmlydHVhbCBjaGFubmVscyB0byBzZWUgaWYKYW55IHByb3Bvc2VkIFZD UEkncyBudW1fc2xvdHMgaXMgZ3JlYXRlciB0aGFuIDAuIElmIGFueSBwcm9wb3NlZApWQ1BJJ3Mg bnVtX3Nsb3RzIGlzIGdyZWF0ZXIgdGhhbiAwIGFuZCB0aGUgcG9ydCB3aGljaCB0aGUKc3BlY2lm aWMgdmlydHVhbCBjaGFubmVsIGRpcmVjdGVkIHRvIGlzIG5vdCBpbiB0aGUgdG9wb2xvZ3ksIGNv ZGUgdGhlbgpmYWlscyBhdCB0aGUgcG9ydCB2YWxpZGF0aW9uLiBTaW5jZSB0aGVyZSBhcmUgc3Rh bGUgVkNQSSBhbGxvY2F0aW9ucwpmcm9tIHRoZSBwcmV2aW91cyB0b3BvbG9neSBlbmFibGVtZW50 IGluIHByb3Bvc2VkX3ZjcGlbXSwgY29kZSB3aWxsIGZhaWwKYXQgcG9ydCB2YWxpZGF0aW9uIGFu ZCByZXVybiBFSU5WQUwuCgpbSG93XQoKQ2xlYW4gdXAgdGhlIGRhdGEgb2Ygc3RhbGUgcHJvcG9z ZWRfdmNwaVtdIGFuZCByZXNldCBtZ3ItPnByb3Bvc2VkX3ZjcGlzCnRvIE5VTEwgd2hpbGUgZGlz YWJsaW5nIG1zdCBpbiBkcm1fZHBfbXN0X3RvcG9sb2d5X21ncl9zZXRfbXN0KCkuCgpDaGFuZ2Vz IHNpbmNlIHYxOgoqQWRkIG9uIG1vcmUgZGV0YWlscyBpbiBjb21taXQgbWVzc2FnZSB0byBkZXNj cmliZSB0aGUgaXNzdWUgd2hpY2ggdGhlIApwYXRjaCBpcyB0cnlpbmcgdG8gZml4CgpTaWduZWQt b2ZmLWJ5OiBXYXluZSBMaW4gPFdheW5lLkxpbkBhbWQuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMgfCAxMiArKysrKysrKysrKysKIDEgZmlsZSBjaGFuZ2Vk LCAxMiBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9t c3RfdG9wb2xvZ3kuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKaW5k ZXggYWU1ODA5YTFmMTlhLi5iZjRmNzQ1YTRlZGIgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9tc3Rf dG9wb2xvZ3kuYwpAQCAtMzM4Niw2ICszMzg2LDcgQEAgc3RhdGljIGludCBkcm1fZHBfZ2V0X3Zj X3BheWxvYWRfYncodTggZHBfbGlua19idywgdTggIGRwX2xpbmtfY291bnQpCiBpbnQgZHJtX2Rw X21zdF90b3BvbG9neV9tZ3Jfc2V0X21zdChzdHJ1Y3QgZHJtX2RwX21zdF90b3BvbG9neV9tZ3Ig Km1nciwgYm9vbCBtc3Rfc3RhdGUpCiB7CiAJaW50IHJldCA9IDA7CisJaW50IGkgPSAwOwogCXN0 cnVjdCBkcm1fZHBfbXN0X2JyYW5jaCAqbXN0YiA9IE5VTEw7CiAKIAltdXRleF9sb2NrKCZtZ3It PmxvY2spOwpAQCAtMzQ0NiwxMCArMzQ0NywyMSBAQCBpbnQgZHJtX2RwX21zdF90b3BvbG9neV9t Z3Jfc2V0X21zdChzdHJ1Y3QgZHJtX2RwX21zdF90b3BvbG9neV9tZ3IgKm1nciwgYm9vbCBtcwog CQkvKiB0aGlzIGNhbiBmYWlsIGlmIHRoZSBkZXZpY2UgaXMgZ29uZSAqLwogCQlkcm1fZHBfZHBj ZF93cml0ZWIobWdyLT5hdXgsIERQX01TVE1fQ1RSTCwgMCk7CiAJCXJldCA9IDA7CisJCW11dGV4 X2xvY2soJm1nci0+cGF5bG9hZF9sb2NrKTsKIAkJbWVtc2V0KG1nci0+cGF5bG9hZHMsIDAsIG1n ci0+bWF4X3BheWxvYWRzICogc2l6ZW9mKHN0cnVjdCBkcm1fZHBfcGF5bG9hZCkpOwogCQltZ3It PnBheWxvYWRfbWFzayA9IDA7CiAJCXNldF9iaXQoMCwgJm1nci0+cGF5bG9hZF9tYXNrKTsKKwkJ Zm9yIChpID0gMDsgaSA8IG1nci0+bWF4X3BheWxvYWRzOyBpKyspIHsKKwkJCXN0cnVjdCBkcm1f ZHBfdmNwaSAqdmNwaSA9IG1nci0+cHJvcG9zZWRfdmNwaXNbaV07CisKKwkJCWlmICh2Y3BpKSB7 CisJCQkJdmNwaS0+dmNwaSA9IDA7CisJCQkJdmNwaS0+bnVtX3Nsb3RzID0gMDsKKwkJCX0KKwkJ CW1nci0+cHJvcG9zZWRfdmNwaXNbaV0gPSBOVUxMOworCQl9CiAJCW1nci0+dmNwaV9tYXNrID0g MDsKKwkJbXV0ZXhfdW5sb2NrKCZtZ3ItPnBheWxvYWRfbG9jayk7CiAJfQogCiBvdXRfdW5sb2Nr OgotLSAKMi4xNy4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpo dHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2FtZC1nZng= 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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 CC9A2C43603 for ; Thu, 5 Dec 2019 09:01:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 A8E21205ED for ; Thu, 5 Dec 2019 09:01:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A8E21205ED Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=none 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 F01506F5FC; Thu, 5 Dec 2019 09:01:21 +0000 (UTC) Received: from NAM02-CY1-obe.outbound.protection.outlook.com (mail-eopbgr760075.outbound.protection.outlook.com [40.107.76.75]) by gabe.freedesktop.org (Postfix) with ESMTPS id 36BC16F5FC; Thu, 5 Dec 2019 09:01:21 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bR4dlc3pglR6dLuR+c/yaz7fPS5X2CFKpZZOPk8JwJwZmVgjz4qTKzaM87hcUTH3aKb/A3kRBeO5PGfF7VJjCp4yt0mQNdO1KTpYEom9baNIg49QPBhh6YZCk7VjBnmzxi0B93OZ3T2KpDr9uEfNgRy/UmitcDA+l+a1ghOtPR7ZCW8B563WqRIcX+TeLvAuVIbGWBdUJsMgXlBhsQ/U73fIgCdgAG3P4GwbQz3yzA0DaDX1REyPUkEEepuJaJwQGYV3rTxzhlVpm7tLDscFzunktSXS/UTwD1SEeynoV5/iQ/UJYmpprwc1vYyM9QvMJ+uKwJ+AjAZdgcQNQDzXaQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=GtpycWjpGMFCC18LLaJIvDLvCmBLoJJGljbfNMiSaRIuvoDCqUh/0R18bXR7luS18srO8vwzjUw6LzMB7u9dSJiai8kVp3dw9wGiYrF6LwV59Z9DZIoJjV/W6MAyLeniB31pTq74TSX1kZe+o1SEJK2kxjF3t+zi5ZkX3ewLiCAAf3dhH/f3ldpZCrXvHIZrbDNT6/MztSgufUNBwTWnjiumi2vIlmT7iCsTgoAB0HxazXgf0gW+4jvTYyEv0dHn7mFce58iR5MLuixwn9714RHlCJfJb7B4ztxZvzzC67BHhC/yKQuzsG2zcuxHKtFVTYevLcZO12eTaz4AQbdPng== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.freedesktop.org smtp.mailfrom=amd.com; dmarc=permerror action=none header.from=amd.com; dkim=none (message not signed); arc=none Received: from BN6PR12CA0030.namprd12.prod.outlook.com (2603:10b6:405:70::16) by DM6PR12MB3786.namprd12.prod.outlook.com (2603:10b6:5:14a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.14; Thu, 5 Dec 2019 09:01:18 +0000 Received: from DM6NAM11FT063.eop-nam11.prod.protection.outlook.com (2a01:111:f400:7eaa::206) by BN6PR12CA0030.outlook.office365.com (2603:10b6:405:70::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.13 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) Received: from SATLEXMB02.amd.com (165.204.84.17) by DM6NAM11FT063.mail.protection.outlook.com (10.13.172.219) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.2451.23 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Received: from SATLEXMB02.amd.com (10.181.40.143) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Thu, 5 Dec 2019 03:01:17 -0600 Received: from wayne-System-Product-Name.amd.com (10.180.168.240) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Thu, 5 Dec 2019 03:01:15 -0600 From: Wayne Lin To: , Subject: [PATCH v2] drm/dp_mst: Remove VCPI while disabling topology mgr Date: Thu, 5 Dec 2019 17:00:43 +0800 Message-ID: <20191205090043.7580-1-Wayne.Lin@amd.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:165.204.84.17; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(4636009)(346002)(39860400002)(396003)(376002)(136003)(428003)(199004)(189003)(2616005)(426003)(53416004)(51416003)(7696005)(1076003)(4326008)(14444005)(50226002)(305945005)(186003)(26005)(478600001)(336012)(36756003)(16586007)(54906003)(2906002)(5660300002)(48376002)(110136005)(81166006)(81156014)(8676002)(316002)(8936002)(70206006)(356004)(6666004)(70586007)(50466002)(86362001); DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR12MB3786; H:SATLEXMB02.amd.com; FPR:; SPF:None; LANG:en; PTR:InfoDomainNonexistent; A:1; MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-TrafficTypeDiagnostic: DM6PR12MB3786: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2449; X-Forefront-PRVS: 02426D11FE X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: loDQL3WHreVe5duDJXX5v2aUSlsTHz7u4rHWMiET8n81481+hd2BeYcM6uzq7cUOhWbc/06OvGWLtpzJ2yc9k429dIhvmYa7CKMFg7EHF/ZPMw/otjzNjrjAVvUha0Ef2IfGnIykCKp1GCtXH2PaO/SaW0ctYSRJOBSePXoDMTChVB/EaWlwe5idYjJd4m4hi13mvInUWfGr96scdAdH4R+TFuBN/f0RBa9s2XWMy80NhT23FHKuZ9dCAey/ilDxt3gfd7kkcieVtY/F0uPhM3e3VA2P7OUUtzHBKgkxukzUyvqLg3OLNYTdYsrReV77959xLtJN5owbmqT6xiuMwDzeJNkQMxCSJ74jE6KFZaQx2cY18vlysbH5DflKEe3tGdJvIcyu0xS2XH/TlXxzYzryZxbUu36ZeNsFJOw2kFygNauBmWeuvIRIuzXIxDBr X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Dec 2019 09:01:18.0269 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB02.amd.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3786 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=N39/J981y635pBN4yG62PlLzIbfTQJUlHFMU7mexgJRsPmWdpbGXRKKYnZf2CV5HLCEvwqmoKjIQwVJlKZqJmksBe4aJhhjsimA1ZcEkODH2ngHUky9nQDHribG43Y1R5HRDvi5Nh5sTFn3DEvFMPfLcXK9fqitW/oTtjYxp8/A= X-Mailman-Original-Authentication-Results: spf=none (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; lists.freedesktop.org; dkim=none (message not signed) header.d=none;lists.freedesktop.org; dmarc=permerror action=none header.from=amd.com; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stable@vger.kernel.org, jerry.zuo@amd.com, Wayne Lin , Nicholas.Kazlauskas@amd.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" W1doeV0KClRoaXMgcGF0Y2ggaXMgdHJ5aW5nIHRvIGFkZHJlc3MgdGhlIGlzc3VlIG9ic2VydmVk IHdoZW4gaG90cGx1ZyBEUApkYWlzeSBjaGFpbiBtb25pdG9ycy4KCmUuZy4Kc3JjLW1zdGItbXN0 Yi1zc3QgLT4gc3JjICh1bnBsdWcpIG1zdGItbXN0Yi1zc3QgLT4gc3JjLW1zdGItbXN0Yi1zc3QK KHBsdWcgaW4gYWdhaW4pCgpPbmNlIHVucGx1ZyBhIERQIE1TVCBjYXBhYmxlIGRldmljZSwgZHJp dmVyIHdpbGwgY2FsbApkcm1fZHBfbXN0X3RvcG9sb2d5X21ncl9zZXRfbXN0KCkgdG8gZGlzYWJs ZSBNU1QuIEluIHRoaXMgZnVuY3Rpb24sCml0IGNsZWFucyBkYXRhIG9mIHRvcG9sb2d5IG1hbmFn ZXIgd2hpbGUgZGlzYWJsaW5nIG1zdF9zdGF0ZS4gSG93ZXZlciwKaXQgZG9lc24ndCBjbGVhbiB1 cCB0aGUgcHJvcG9zZWRfdmNwaXMgb2YgdG9wb2xvZ3kgbWFuYWdlci4KSWYgcHJvcG9zZWRfdmNw aSBpcyBub3QgcmVzZXQsIG9uY2UgcGx1ZyBpbiBNU1QgZGFpc3kgY2hhaW4gbW9uaXRvcnMKbGF0 ZXIsIGNvZGUgd2lsbCBmYWlsIGF0IGNoZWNraW5nIHBvcnQgdmFsaWRhdGlvbiB3aGlsZSB0cnlp bmcgdG8KYWxsb2NhdGUgcGF5bG9hZHMuCgpXaGVuIE1TVCBjYXBhYmxlIGRldmljZSBpcyBwbHVn Z2VkIGluIGFnYWluIGFuZCB0cnkgdG8gYWxsb2NhdGUKcGF5bG9hZHMgYnkgY2FsbGluZyBkcm1f ZHBfdXBkYXRlX3BheWxvYWRfcGFydDEoKSwgdGhpcwpmdW5jdGlvbiB3aWxsIGl0ZXJhdGUgb3Zl ciBhbGwgcHJvcG9zZWQgdmlydHVhbCBjaGFubmVscyB0byBzZWUgaWYKYW55IHByb3Bvc2VkIFZD UEkncyBudW1fc2xvdHMgaXMgZ3JlYXRlciB0aGFuIDAuIElmIGFueSBwcm9wb3NlZApWQ1BJJ3Mg bnVtX3Nsb3RzIGlzIGdyZWF0ZXIgdGhhbiAwIGFuZCB0aGUgcG9ydCB3aGljaCB0aGUKc3BlY2lm aWMgdmlydHVhbCBjaGFubmVsIGRpcmVjdGVkIHRvIGlzIG5vdCBpbiB0aGUgdG9wb2xvZ3ksIGNv ZGUgdGhlbgpmYWlscyBhdCB0aGUgcG9ydCB2YWxpZGF0aW9uLiBTaW5jZSB0aGVyZSBhcmUgc3Rh bGUgVkNQSSBhbGxvY2F0aW9ucwpmcm9tIHRoZSBwcmV2aW91cyB0b3BvbG9neSBlbmFibGVtZW50 IGluIHByb3Bvc2VkX3ZjcGlbXSwgY29kZSB3aWxsIGZhaWwKYXQgcG9ydCB2YWxpZGF0aW9uIGFu ZCByZXVybiBFSU5WQUwuCgpbSG93XQoKQ2xlYW4gdXAgdGhlIGRhdGEgb2Ygc3RhbGUgcHJvcG9z ZWRfdmNwaVtdIGFuZCByZXNldCBtZ3ItPnByb3Bvc2VkX3ZjcGlzCnRvIE5VTEwgd2hpbGUgZGlz YWJsaW5nIG1zdCBpbiBkcm1fZHBfbXN0X3RvcG9sb2d5X21ncl9zZXRfbXN0KCkuCgpDaGFuZ2Vz IHNpbmNlIHYxOgoqQWRkIG9uIG1vcmUgZGV0YWlscyBpbiBjb21taXQgbWVzc2FnZSB0byBkZXNj cmliZSB0aGUgaXNzdWUgd2hpY2ggdGhlIApwYXRjaCBpcyB0cnlpbmcgdG8gZml4CgpTaWduZWQt b2ZmLWJ5OiBXYXluZSBMaW4gPFdheW5lLkxpbkBhbWQuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMgfCAxMiArKysrKysrKysrKysKIDEgZmlsZSBjaGFuZ2Vk LCAxMiBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9t c3RfdG9wb2xvZ3kuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKaW5k ZXggYWU1ODA5YTFmMTlhLi5iZjRmNzQ1YTRlZGIgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9tc3Rf dG9wb2xvZ3kuYwpAQCAtMzM4Niw2ICszMzg2LDcgQEAgc3RhdGljIGludCBkcm1fZHBfZ2V0X3Zj X3BheWxvYWRfYncodTggZHBfbGlua19idywgdTggIGRwX2xpbmtfY291bnQpCiBpbnQgZHJtX2Rw X21zdF90b3BvbG9neV9tZ3Jfc2V0X21zdChzdHJ1Y3QgZHJtX2RwX21zdF90b3BvbG9neV9tZ3Ig Km1nciwgYm9vbCBtc3Rfc3RhdGUpCiB7CiAJaW50IHJldCA9IDA7CisJaW50IGkgPSAwOwogCXN0 cnVjdCBkcm1fZHBfbXN0X2JyYW5jaCAqbXN0YiA9IE5VTEw7CiAKIAltdXRleF9sb2NrKCZtZ3It PmxvY2spOwpAQCAtMzQ0NiwxMCArMzQ0NywyMSBAQCBpbnQgZHJtX2RwX21zdF90b3BvbG9neV9t Z3Jfc2V0X21zdChzdHJ1Y3QgZHJtX2RwX21zdF90b3BvbG9neV9tZ3IgKm1nciwgYm9vbCBtcwog CQkvKiB0aGlzIGNhbiBmYWlsIGlmIHRoZSBkZXZpY2UgaXMgZ29uZSAqLwogCQlkcm1fZHBfZHBj ZF93cml0ZWIobWdyLT5hdXgsIERQX01TVE1fQ1RSTCwgMCk7CiAJCXJldCA9IDA7CisJCW11dGV4 X2xvY2soJm1nci0+cGF5bG9hZF9sb2NrKTsKIAkJbWVtc2V0KG1nci0+cGF5bG9hZHMsIDAsIG1n ci0+bWF4X3BheWxvYWRzICogc2l6ZW9mKHN0cnVjdCBkcm1fZHBfcGF5bG9hZCkpOwogCQltZ3It PnBheWxvYWRfbWFzayA9IDA7CiAJCXNldF9iaXQoMCwgJm1nci0+cGF5bG9hZF9tYXNrKTsKKwkJ Zm9yIChpID0gMDsgaSA8IG1nci0+bWF4X3BheWxvYWRzOyBpKyspIHsKKwkJCXN0cnVjdCBkcm1f ZHBfdmNwaSAqdmNwaSA9IG1nci0+cHJvcG9zZWRfdmNwaXNbaV07CisKKwkJCWlmICh2Y3BpKSB7 CisJCQkJdmNwaS0+dmNwaSA9IDA7CisJCQkJdmNwaS0+bnVtX3Nsb3RzID0gMDsKKwkJCX0KKwkJ CW1nci0+cHJvcG9zZWRfdmNwaXNbaV0gPSBOVUxMOworCQl9CiAJCW1nci0+dmNwaV9tYXNrID0g MDsKKwkJbXV0ZXhfdW5sb2NrKCZtZ3ItPnBheWxvYWRfbG9jayk7CiAJfQogCiBvdXRfdW5sb2Nr OgotLSAKMi4xNy4xCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2 ZWw= 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 3F1BCC43603 for ; Thu, 5 Dec 2019 09:01:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08C6120659 for ; Thu, 5 Dec 2019 09:01:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amdcloud.onmicrosoft.com header.i=@amdcloud.onmicrosoft.com header.b="N39/J981" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726137AbfLEJBh (ORCPT ); Thu, 5 Dec 2019 04:01:37 -0500 Received: from mail-eopbgr760082.outbound.protection.outlook.com ([40.107.76.82]:11297 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726096AbfLEJBh (ORCPT ); Thu, 5 Dec 2019 04:01:37 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bR4dlc3pglR6dLuR+c/yaz7fPS5X2CFKpZZOPk8JwJwZmVgjz4qTKzaM87hcUTH3aKb/A3kRBeO5PGfF7VJjCp4yt0mQNdO1KTpYEom9baNIg49QPBhh6YZCk7VjBnmzxi0B93OZ3T2KpDr9uEfNgRy/UmitcDA+l+a1ghOtPR7ZCW8B563WqRIcX+TeLvAuVIbGWBdUJsMgXlBhsQ/U73fIgCdgAG3P4GwbQz3yzA0DaDX1REyPUkEEepuJaJwQGYV3rTxzhlVpm7tLDscFzunktSXS/UTwD1SEeynoV5/iQ/UJYmpprwc1vYyM9QvMJ+uKwJ+AjAZdgcQNQDzXaQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=GtpycWjpGMFCC18LLaJIvDLvCmBLoJJGljbfNMiSaRIuvoDCqUh/0R18bXR7luS18srO8vwzjUw6LzMB7u9dSJiai8kVp3dw9wGiYrF6LwV59Z9DZIoJjV/W6MAyLeniB31pTq74TSX1kZe+o1SEJK2kxjF3t+zi5ZkX3ewLiCAAf3dhH/f3ldpZCrXvHIZrbDNT6/MztSgufUNBwTWnjiumi2vIlmT7iCsTgoAB0HxazXgf0gW+4jvTYyEv0dHn7mFce58iR5MLuixwn9714RHlCJfJb7B4ztxZvzzC67BHhC/yKQuzsG2zcuxHKtFVTYevLcZO12eTaz4AQbdPng== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none (sender ip is 165.204.84.17) smtp.rcpttodomain=lists.freedesktop.org smtp.mailfrom=amd.com; dmarc=permerror action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PdFr6837ay9GVGu4ppW1TvFtsVwna6j2PxUPEW9dbI4=; b=N39/J981y635pBN4yG62PlLzIbfTQJUlHFMU7mexgJRsPmWdpbGXRKKYnZf2CV5HLCEvwqmoKjIQwVJlKZqJmksBe4aJhhjsimA1ZcEkODH2ngHUky9nQDHribG43Y1R5HRDvi5Nh5sTFn3DEvFMPfLcXK9fqitW/oTtjYxp8/A= Received: from BN6PR12CA0030.namprd12.prod.outlook.com (2603:10b6:405:70::16) by DM6PR12MB3786.namprd12.prod.outlook.com (2603:10b6:5:14a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.14; Thu, 5 Dec 2019 09:01:18 +0000 Received: from DM6NAM11FT063.eop-nam11.prod.protection.outlook.com (2a01:111:f400:7eaa::206) by BN6PR12CA0030.outlook.office365.com (2603:10b6:405:70::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2516.13 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Authentication-Results: spf=none (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; lists.freedesktop.org; dkim=none (message not signed) header.d=none;lists.freedesktop.org; dmarc=permerror action=none header.from=amd.com; Received-SPF: None (protection.outlook.com: amd.com does not designate permitted sender hosts) Received: from SATLEXMB02.amd.com (165.204.84.17) by DM6NAM11FT063.mail.protection.outlook.com (10.13.172.219) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.2451.23 via Frontend Transport; Thu, 5 Dec 2019 09:01:18 +0000 Received: from SATLEXMB02.amd.com (10.181.40.143) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Thu, 5 Dec 2019 03:01:17 -0600 Received: from wayne-System-Product-Name.amd.com (10.180.168.240) by SATLEXMB02.amd.com (10.181.40.143) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Thu, 5 Dec 2019 03:01:15 -0600 From: Wayne Lin To: , CC: , , , , , Wayne Lin Subject: [PATCH v2] drm/dp_mst: Remove VCPI while disabling topology mgr Date: Thu, 5 Dec 2019 17:00:43 +0800 Message-ID: <20191205090043.7580-1-Wayne.Lin@amd.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:165.204.84.17;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(346002)(39860400002)(396003)(376002)(136003)(428003)(199004)(189003)(2616005)(426003)(53416004)(51416003)(7696005)(1076003)(4326008)(14444005)(50226002)(305945005)(186003)(26005)(478600001)(336012)(36756003)(16586007)(54906003)(2906002)(5660300002)(48376002)(110136005)(81166006)(81156014)(8676002)(316002)(8936002)(70206006)(356004)(6666004)(70586007)(50466002)(86362001);DIR:OUT;SFP:1101;SCL:1;SRVR:DM6PR12MB3786;H:SATLEXMB02.amd.com;FPR:;SPF:None;LANG:en;PTR:InfoDomainNonexistent;A:1;MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-TrafficTypeDiagnostic: DM6PR12MB3786: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2449; X-Forefront-PRVS: 02426D11FE X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: loDQL3WHreVe5duDJXX5v2aUSlsTHz7u4rHWMiET8n81481+hd2BeYcM6uzq7cUOhWbc/06OvGWLtpzJ2yc9k429dIhvmYa7CKMFg7EHF/ZPMw/otjzNjrjAVvUha0Ef2IfGnIykCKp1GCtXH2PaO/SaW0ctYSRJOBSePXoDMTChVB/EaWlwe5idYjJd4m4hi13mvInUWfGr96scdAdH4R+TFuBN/f0RBa9s2XWMy80NhT23FHKuZ9dCAey/ilDxt3gfd7kkcieVtY/F0uPhM3e3VA2P7OUUtzHBKgkxukzUyvqLg3OLNYTdYsrReV77959xLtJN5owbmqT6xiuMwDzeJNkQMxCSJ74jE6KFZaQx2cY18vlysbH5DflKEe3tGdJvIcyu0xS2XH/TlXxzYzryZxbUu36ZeNsFJOw2kFygNauBmWeuvIRIuzXIxDBr X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Dec 2019 09:01:18.0269 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 702d6a9d-542e-4c89-9252-08d77961b0cc X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB02.amd.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3786 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [Why] This patch is trying to address the issue observed when hotplug DP daisy chain monitors. e.g. src-mstb-mstb-sst -> src (unplug) mstb-mstb-sst -> src-mstb-mstb-sst (plug in again) Once unplug a DP MST capable device, driver will call drm_dp_mst_topology_mgr_set_mst() to disable MST. In this function, it cleans data of topology manager while disabling mst_state. However, it doesn't clean up the proposed_vcpis of topology manager. If proposed_vcpi is not reset, once plug in MST daisy chain monitors later, code will fail at checking port validation while trying to allocate payloads. When MST capable device is plugged in again and try to allocate payloads by calling drm_dp_update_payload_part1(), this function will iterate over all proposed virtual channels to see if any proposed VCPI's num_slots is greater than 0. If any proposed VCPI's num_slots is greater than 0 and the port which the specific virtual channel directed to is not in the topology, code then fails at the port validation. Since there are stale VCPI allocations from the previous topology enablement in proposed_vcpi[], code will fail at port validation and reurn EINVAL. [How] Clean up the data of stale proposed_vcpi[] and reset mgr->proposed_vcpis to NULL while disabling mst in drm_dp_mst_topology_mgr_set_mst(). Changes since v1: *Add on more details in commit message to describe the issue which the patch is trying to fix Signed-off-by: Wayne Lin --- drivers/gpu/drm/drm_dp_mst_topology.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index ae5809a1f19a..bf4f745a4edb 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3386,6 +3386,7 @@ static int drm_dp_get_vc_payload_bw(u8 dp_link_bw, u8 dp_link_count) int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool mst_state) { int ret = 0; + int i = 0; struct drm_dp_mst_branch *mstb = NULL; mutex_lock(&mgr->lock); @@ -3446,10 +3447,21 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms /* this can fail if the device is gone */ drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL, 0); ret = 0; + mutex_lock(&mgr->payload_lock); memset(mgr->payloads, 0, mgr->max_payloads * sizeof(struct drm_dp_payload)); mgr->payload_mask = 0; set_bit(0, &mgr->payload_mask); + for (i = 0; i < mgr->max_payloads; i++) { + struct drm_dp_vcpi *vcpi = mgr->proposed_vcpis[i]; + + if (vcpi) { + vcpi->vcpi = 0; + vcpi->num_slots = 0; + } + mgr->proposed_vcpis[i] = NULL; + } mgr->vcpi_mask = 0; + mutex_unlock(&mgr->payload_lock); } out_unlock: -- 2.17.1