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=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 E705AC432C0 for ; Thu, 21 Nov 2019 11:08:47 +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 C1AE920656 for ; Thu, 21 Nov 2019 11:08:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C1AE920656 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org 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 0F4F26EDB5; Thu, 21 Nov 2019 11:08:46 +0000 (UTC) Received: from mail-oi1-f193.google.com (mail-oi1-f193.google.com [209.85.167.193]) by gabe.freedesktop.org (Postfix) with ESMTPS id 292226E098; Thu, 21 Nov 2019 11:08:44 +0000 (UTC) Received: by mail-oi1-f193.google.com with SMTP id o12so2778813oic.9; Thu, 21 Nov 2019 03:08:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=J3Cy3tfrJiIUlL+D9Jr0kFLFrHhJQwh4Hdb4cuVFpa8=; b=erHjzxwS4JsNP7EcyDNXF1kNzW+1aFjhfXFDOjyE9y+7cv7xqOWIryP7dilG03aYPm gAAcZwC9C0O91xXmEdxyyGS993Y9QhmYni4tolqwWrHK2jNiDNHuCxn82POVzxupv+U1 mZYiWn1XxYtB86tGHGKbiYFgvzhBZBZgqcSovBEnPyeSs5gScNMaVvkyotXeTRY8ibd6 JdTODlvCaJafiIzTxOADF35hqNY1NRp8vHbG9ItJ58930ci2ErRXbtbScFwkIGANOf55 0f8qHP165n4SE1cPvllCoAv1CDFz96vAoH64rgP/yZgMwwCv2M/qbDEmoeOhjbWPeiiG VB9w== X-Gm-Message-State: APjAAAWC0ENf1OFPQQWyovLWgVWq7WdcxupxjFiRmN5wt0b8LFBp33+i W0EAl0DBU/OcGFTQwqtpY3SBfu4Qkcor33TnhgY975Vh X-Google-Smtp-Source: APXvYqxlqz4qNEUm0jTv4bAaBARGWgCnBqt/66UTTeVhGXft7P2C40EC7WWo0izyYaTsvvvl2QWLzkuMrcwnoaF2ur8= X-Received: by 2002:a05:6808:901:: with SMTP id w1mr7358488oih.57.1574334523139; Thu, 21 Nov 2019 03:08:43 -0800 (PST) MIME-Version: 1.0 References: <20191120115127.GD11621@lahna.fi.intel.com> <20191120120913.GE11621@lahna.fi.intel.com> <20191120151542.GH11621@lahna.fi.intel.com> <20191120155301.GL11621@lahna.fi.intel.com> <20191120162306.GM11621@lahna.fi.intel.com> <20191121101423.GQ11621@lahna.fi.intel.com> In-Reply-To: From: "Rafael J. Wysocki" Date: Thu, 21 Nov 2019 12:08:31 +0100 Message-ID: Subject: Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges To: Mika Westerberg 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: <20191121110831.fhUuq8dszP2EeNiP5hGHHshreQ3MMs3flqVmGFMFobY@z> T24gVGh1LCBOb3YgMjEsIDIwMTkgYXQgMTI6MDMgUE0gUmFmYWVsIEouIFd5c29ja2kgPHJhZmFl bEBrZXJuZWwub3JnPiB3cm90ZToKPgo+IE9uIFRodSwgTm92IDIxLCAyMDE5IGF0IDExOjE0IEFN IE1pa2EgV2VzdGVyYmVyZwo+IDxtaWthLndlc3RlcmJlcmdAaW50ZWwuY29tPiB3cm90ZToKPiA+ Cj4gPiBPbiBXZWQsIE5vdiAyMCwgMjAxOSBhdCAxMDozNjozMVBNICswMTAwLCBLYXJvbCBIZXJi c3Qgd3JvdGU6Cj4gPiA+IHdpdGggdGhlIGJyYW5jaCBhbmQgcGF0Y2ggYXBwbGllZDoKPiA+ID4g aHR0cHM6Ly9naXN0LmdpdGh1YnVzZXJjb250ZW50LmNvbS9rYXJvbGhlcmJzdC8wM2M0YzgxNDFi MGZhMjkyZDc4MWJhZGZhMTg2NDc5ZS9yYXcvNWM2MjY0MGFmYmM1N2Q2ZTY5ZWE5MjRjMzM4YmQy ODM2ZTc3MGQwMi9naXN0ZmlsZTEudHh0Cj4gPgo+ID4gVGhhbmtzIGZvciB0ZXN0aW5nLiBUb28g YmFkIGl0IGRpZCBub3QgaGVscCA6KCBJIHN1cHBvc2UgdGhlcmUgaXMgbm8KPiA+IGNoYW5nZSBp ZiB5b3UgaW5jcmVhc2UgdGhlIGRlbGF5IHRvIHNheSAxcz8KPgo+IFdlbGwsIGxvb2sgYXQgdGhl IG9yaWdpbmFsIHBhdGNoIGluIHRoaXMgdGhyZWFkLgo+Cj4gV2hhdCBpdCBkb2VzIGlzIHRvIHBy ZXZlbnQgdGhlIGRldmljZSAoR1BVIGluIHRoaXMgcGFydGljdWxhciBjYXNlKQo+IGZyb20gZ29p bmcgaW50byBhIFBDSSBsb3ctcG93ZXIgc3RhdGUgYmVmb3JlIGludm9raW5nIEFNTCB0byBwb3dl ciBpdAo+IGRvd24gKHRoZSBBTUwgaXMgc3RpbGwgaW52b2tlZCBhZnRlciB0aGlzIHBhdGNoIEFG QUlDUyksIHNvIHdoeSB3b3VsZAo+IHRoYXQgaGF2ZSBhbnl0aGluZyB0byBkbyB3aXRoIHRoZSBk ZWxheXM/Cj4KPiBUaGUgb25seSByZWFzb24gd291bGQgYmUgdGhlIEFNTCBydW5uaW5nIHRvbyBl YXJseSwgYnV0IHRoYXQgZG9lc24ndAo+IHNlZW0gbGlrZWx5LiAgSU1PIG1vcmUgbGlrZWx5IGlz IHRoYXQgdGhlIEFNTCBkb2VzIHNvbWV0aGluZyB3aGljaAo+IGNhbm5vdCBiZSBkb25lIHRvIGEg ZGV2aWNlIGluIGEgUENJIGxvdy1wb3dlciBzdGF0ZS4KCkJUVywgSSdtIHdvbmRlcmluZyBpZiBh bnlvbmUgaGFzIHRyaWVkIHRvIHNraXAgdGhlIEFNTCBpbnN0ZWFkIG9mCnNraXBwaW5nIHRoZSBQ Q0kgUE0gaW4gdGhpcyBjYXNlIChhcyBvZiA1LjQtcmMgdGhhdCB3b3VsZCBiZSBhIHNpbWlsYXIK cGF0Y2ggdG8gc2tpcCB0aGUgaW52b2NhdGlvbnMgb2YKX19wY2lfc3RhcnQvY29tcGxldGVfcG93 ZXJfdHJhbnNpdGlvbigpIGluIHBjaV9zZXRfcG93ZXJfc3RhdGUoKSBmb3IKdGhlIGFmZmVjdGVk IGRldmljZSkuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpo dHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==