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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 EB8DAC432C3 for ; Wed, 27 Nov 2019 11:49:03 +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 CB1C02070B for ; Wed, 27 Nov 2019 11:49:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB1C02070B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.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 234FB6E527; Wed, 27 Nov 2019 11:49:03 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 562886E523; Wed, 27 Nov 2019 11:49:01 +0000 (UTC) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2019 03:49:00 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,249,1571727600"; d="scan'208";a="217370597" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.163]) by fmsmga001.fm.intel.com with SMTP; 27 Nov 2019 03:48:57 -0800 Received: by lahna (sSMTP sendmail emulation); Wed, 27 Nov 2019 13:48:56 +0200 Date: Wed, 27 Nov 2019 13:48:56 +0200 From: Mika Westerberg To: Lyude Paul Subject: Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges Message-ID: <20191127114856.GZ11621@lahna.fi.intel.com> References: <20191121112821.GU11621@lahna.fi.intel.com> <20191121114610.GW11621@lahna.fi.intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.12.1 (2019-06-15) 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: Karol Herbst , "Rafael J. Wysocki" , Linux PCI , Linux PM , "Rafael J . Wysocki" , LKML , dri-devel , Mario Limonciello , Bjorn Helgaas , nouveau Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191127114856.JFSbvV4C0LmN4JNMxjGwfmhe12S0s3reTUwbXFJ8m0k@z> T24gVHVlLCBOb3YgMjYsIDIwMTkgYXQgMDY6MTA6MzZQTSAtMDUwMCwgTHl1ZGUgUGF1bCB3cm90 ZToKPiBIZXktdGhpcyBpcyBhbG1vc3QgY2VydGFpbmx5IG5vdCB0aGUgcmlnaHQgcGxhY2UgaW4g dGhpcyB0aHJlYWQgdG8gcmVzcG9uZCwKPiBidXQgdGhpcyB0aHJlYWQgaGFzIGdvdHRlbiBzbyBk ZWVwIGV2b2x1dGlvbiBjYW4ndCBwdXNoIHRoZSBzdWJqZWN0IGZ1cnRoZXIgdG8KPiB0aGUgcmln aHQsIGhlaC4gU28gSSdsbCBqdXN0IHJlc3BvbmQgaGVyZS4KCjopCgo+IEkndmUgYmVlbiBmb2xs b3dpbmcgdGhpcyBhbmQgaGVscGluZyBvdXQgS2Fyb2wgd2l0aCB0ZXN0aW5nIGhlcmUgYW5kIHRo ZXJlLgo+IFRoZXkgaGFkIG1lIHRlc3QgQmpvcm4ncyBQQ0kgYnJhbmNoIG9uIHRoZSBYMSBFeHRy ZW1lIDJuZCBnZW5lcmF0aW9uLCB3aGljaAo+IGhhcyBhIHR1cmluZyBHUFUgYW5kIDgwODY6MTkw MSBQQ0kgYnJpZGdlLgo+IAo+IEkgd2FzIGFib3V0IHRvIHNheSAidGhlIHBhdGNoIGZpeGVkIHRo aW5ncywgaG9vcmF5ISIgYnV0IGl0IHNlZW1zIHRoYXQgYWZ0ZXIKPiB0cnlpbmcgcnVudGltZSBz dXNwZW5kL3Jlc3VtZSBhIGNvdXBsZSB0aW1lcyB0aGluZ3MgZmFsbCBhcGFydCBhZ2FpbjoKCllv dSBtZWFuICRzdWJqZWN0IHBhdGNoLCBubz8KCj4gWyAgNjg2Ljg4MzI0N10gbm91dmVhdSAwMDAw OjAxOjAwLjA6IERSTTogc3VzcGVuZGluZyBvYmplY3QgdHJlZS4uLgo+IFsgIDc1Mi44NjY0ODRd IEFDUEkgRXJyb3I6IEFib3J0aW5nIG1ldGhvZCBcX1NCLlBDSTAuUEVHMC5QRUdQLk5WUE8gZHVl IHRvIHByZXZpb3VzIGVycm9yIChBRV9BTUxfTE9PUF9USU1FT1VUKSAoMjAxOTA4MTYvcHNwYXJz ZS01MjkpCj4gWyAgNzUyLjg2NjUwOF0gQUNQSSBFcnJvcjogQWJvcnRpbmcgbWV0aG9kIFxfU0Iu UENJMC5QR09OIGR1ZSB0byBwcmV2aW91cyBlcnJvciAoQUVfQU1MX0xPT1BfVElNRU9VVCkgKDIw MTkwODE2L3BzcGFyc2UtNTI5KQo+IFsgIDc1Mi44NjY1MjFdIEFDUEkgRXJyb3I6IEFib3J0aW5n IG1ldGhvZCBcX1NCLlBDSTAuUEVHMC5QRzAwLl9PTiBkdWUgdG8gcHJldmlvdXMgZXJyb3IgKEFF X0FNTF9MT09QX1RJTUVPVVQpICgyMDE5MDgxNi9wc3BhcnNlLTUyOSkKClRoaXMgaXMgcHJvYmFi bHkgdGhlIGN1bHByaXQuIFRoZSBzYW1lIEFNTCBjb2RlIGZhaWxzIHRvIHByb3Blcmx5IHR1cm4K b24gdGhlIGRldmljZS4KCklzIGFjcGlkdW1wIGZyb20gdGhpcyBzeXN0ZW0gYXZhaWxhYmxlIHNv bWV3aGVyZT8KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K ZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs