From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Date: Mon, 3 Sep 2018 15:12:09 +0300 From: Mika Westerberg To: Daniel Drake Cc: Bjorn Helgaas , Bjorn Helgaas , linux-pci@vger.kernel.org, Linux Upstreaming Team , nouveau@lists.freedesktop.org, Linux PM , Peter Wu , kherbst@redhat.com, Andy Shevchenko , "Rafael J. Wysocki" , Keith Busch , Jon Derrick Subject: Re: [PATCH] PCI: add prefetch quirk to work around Asus/Nvidia suspend issues Message-ID: <20180903121209.GC2283@lahna.fi.intel.com> References: <20180831073057.14626-1-drake@endlessm.com> <20180831191225.GA43106@bhelgaas-glaptop.roam.corp.google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: List-ID: On Mon, Sep 03, 2018 at 04:56:32PM +0800, Daniel Drake wrote: > On Sat, Sep 1, 2018 at 3:12 AM, Bjorn Helgaas wrote: > > If true, this sounds like some sort of erratum, so it would be good to > > get some input from Intel, and I cc'd a few Intel folks. > > Yes, it would be great to get their input. We have seen one similar issue with LPSS devices when BIOS assigns device BARs above 4G (which is not the case here) and it turned out to be misconfigured MTRR register or something like that. It may not be related at all but it could be worth a try to dump out MTRR registers of one of the affected systems and see if the memory areas are listed there (and if the attributes are somehow wrong if found). From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [PATCH] PCI: add prefetch quirk to work around Asus/Nvidia suspend issues Date: Mon, 3 Sep 2018 15:12:09 +0300 Message-ID: <20180903121209.GC2283@lahna.fi.intel.com> References: <20180831073057.14626-1-drake@endlessm.com> <20180831191225.GA43106@bhelgaas-glaptop.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: Daniel Drake Cc: Linux PM , linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Rafael J. Wysocki" , Keith Busch , Bjorn Helgaas , nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Bjorn Helgaas , Andy Shevchenko , Linux Upstreaming Team , Jon Derrick List-Id: linux-pm@vger.kernel.org T24gTW9uLCBTZXAgMDMsIDIwMTggYXQgMDQ6NTY6MzJQTSArMDgwMCwgRGFuaWVsIERyYWtlIHdy b3RlOgo+IE9uIFNhdCwgU2VwIDEsIDIwMTggYXQgMzoxMiBBTSwgQmpvcm4gSGVsZ2FhcyA8aGVs Z2Fhc0BrZXJuZWwub3JnPiB3cm90ZToKPiA+IElmIHRydWUsIHRoaXMgc291bmRzIGxpa2Ugc29t ZSBzb3J0IG9mIGVycmF0dW0sIHNvIGl0IHdvdWxkIGJlIGdvb2QgdG8KPiA+IGdldCBzb21lIGlu cHV0IGZyb20gSW50ZWwsIGFuZCBJIGNjJ2QgYSBmZXcgSW50ZWwgZm9sa3MuCj4gCj4gWWVzLCBp dCB3b3VsZCBiZSBncmVhdCB0byBnZXQgdGhlaXIgaW5wdXQuCgpXZSBoYXZlIHNlZW4gb25lIHNp bWlsYXIgaXNzdWUgd2l0aCBMUFNTIGRldmljZXMgd2hlbiBCSU9TIGFzc2lnbnMKZGV2aWNlIEJB UnMgYWJvdmUgNEcgKHdoaWNoIGlzIG5vdCB0aGUgY2FzZSBoZXJlKSBhbmQgaXQgdHVybmVkIG91 dCB0bwpiZSBtaXNjb25maWd1cmVkIE1UUlIgcmVnaXN0ZXIgb3Igc29tZXRoaW5nIGxpa2UgdGhh dC4gSXQgbWF5IG5vdCBiZQpyZWxhdGVkIGF0IGFsbCBidXQgaXQgY291bGQgYmUgd29ydGggYSB0 cnkgdG8gZHVtcCBvdXQgTVRSUiByZWdpc3RlcnMgb2YKb25lIG9mIHRoZSBhZmZlY3RlZCBzeXN0 ZW1zIGFuZCBzZWUgaWYgdGhlIG1lbW9yeSBhcmVhcyBhcmUgbGlzdGVkIHRoZXJlCihhbmQgaWYg dGhlIGF0dHJpYnV0ZXMgYXJlIHNvbWVob3cgd3JvbmcgaWYgZm91bmQpLgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpOb3V2ZWF1IG1haWxpbmcgbGlzdApO b3V2ZWF1QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL25vdXZlYXUK