From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [RFC PATCH] pci: prevent putting pcie devices into lower device states on certain intel bridges Date: Mon, 30 Sep 2019 11:05:34 +0300 Message-ID: <20190930080534.GS2714@lahna.fi.intel.com> References: <20190927144421.22608-1-kherbst@redhat.com> <20190927214252.GA65801@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: Karol Herbst Cc: Linux PM , nouveau , "Rafael J. Wysocki" , LKML , dri-devel , Bjorn Helgaas , Linux PCI List-Id: dri-devel@lists.freedesktop.org SGkgS2Fyb2wsCgpPbiBGcmksIFNlcCAyNywgMjAxOSBhdCAxMTo1Mzo0OFBNICswMjAwLCBLYXJv bCBIZXJic3Qgd3JvdGU6Cj4gPiBXaGF0IGV4YWN0bHkgaXMgdGhlIHNlcmlvdXMgaXNzdWU/ICBJ IGd1ZXNzIGl0J3MgdGhhdCB0aGUgcmVzY2FuCj4gPiBkb2Vzbid0IGRldGVjdCB0aGUgR1BVLCB3 aGljaCBtZWFucyBpdCdzIG5vdCByZXNwb25kaW5nIHRvIGNvbmZpZwo+ID4gYWNjZXNzZXM/ICBJ cyB0aGVyZSBhbnkgdGltaW5nIGNvbXBvbmVudCBoZXJlLCBlLmcuLCBtYXliZSB3ZSdyZQo+ID4g bWlzc2luZyBzb21lIGRlbGF5IGxpa2UgdGhlIG9uZXMgTWlrYSBpcyBhZGRpbmcgdG8gdGhlIHJl c2V0IHBhdGhzPwo+IAo+IFdoZW4gSSB3YXMgY2hlY2tpbmcgdXAgb24gc29tZSBvZiB0aGUgUENJ IHJlZ2lzdGVycyBvZiB0aGUgYnJpZGdlCj4gY29udHJvbGxlciwgdGhlIHNsb3QgZGV0ZWN0aW9u IHRvbGQgbWUgdGhhdCB0aGVyZSBpcyBubyBkZXZpY2UKPiByZWNvZ25pemVkIGFueW1vcmUuIEkg ZG9uJ3Qga25vdyB3aGljaCByZWdpc3RlciBpdCB3YXMgYW55bW9yZSwgdGhvdWdoCj4gSSBndWVz cyBvbmUgY291bGQgcmVhZCBpdCB1cCBpbiB0aGUgU29DIHNwZWMgZG9jdW1lbnQgYnkgSW50ZWwu Cj4gCj4gTXkgZ3Vlc3MgaXMsIHRoYXQgdGhlIGJyaWRnZSBjb250cm9sbGVyIGZhaWxzIHRvIGRl dGVjdCB0aGUgR1BVIGJlaW5nCj4gaGVyZSBvciBhY3RpdmVseSB0aHJldyBpdCBvZiB0aGUgYnVz IG9yIHNvbWV0aGluZy4gQnV0IGEgbm9ybWFsIHN5c3RlbQo+IHN1c3BlbmQvcmVzdW1lIGN5Y2xl IGJyaW5ncyB0aGUgR1BVIGJhY2sgb25saW5lIChkb2luZyBhIHJlc2NhbiB2aWEKPiBzeXNmcyBn ZXRzIHRoZSBkZXZpY2UgZGV0ZWN0ZWQgYWdhaW4pCgpDYW4geW91IGVsYWJvcmF0ZSBhIGJpdCB3 aGF0IGtpbmQgb2Ygc2NlbmFyaW8gdGhlIGlzc3VlIGhhcHBlbnMgKGUuZwpzdGVwcyBob3cgaXQg cmVwcm9kdWNlcyk/IEl0IHdhcyBub3QgMTAwJSBjbGVhciBmcm9tIHRoZSBjaGFuZ2Vsb2cuIEFs c28Kd2hhdCB0aGUgcmVzdWx0IHdoZW4gdGhlIGZhaWx1cmUgaGFwcGVucz8KCkkgc2VlIHRoZXJl IGlzIGEgc2NyaXB0IHRoYXQgZG9lcyBzb21ldGhpbmcgYnV0IHVuZm9ydHVuYXRlbHkgSSdtIG5v dApmbHVlbnQgaW4gUHl0aG9uIHNvIGNhbid0IGV4dHJhY3QgdGhlIHN0ZXBzIGhvdyB0aGUgaXNz dWUgY2FuIGJlCnJlcHJvZHVjZWQgOy0pCgpPbmUgdGhpbmcgdGhhdCBJJ20gd29ya2luZyBvbiBp cyB0aGF0IExpbnV4IFBDSSBzdWJzeXN0ZW0gbWlzc2VzIGNlcnRhaW4KZGVsYXlzIHRoYXQgYXJl IG5lZWRlZCBhZnRlciBEM2NvbGQgLT4gRDAgdHJhbnNpdGlvbiwgb3RoZXJ3aXNlIHRoZQpkZXZp Y2UgYW5kL29yIGxpbmsgbWF5IG5vdCBiZSByZWFkeSBiZWZvcmUgd2UgYWNjZXNzIGl0LiBXaGF0 IHlvdSBhcmUKZXhwZXJpZW5jaW5nIHNvdW5kcyBzaW1pbGFyLiBJIHdvbmRlciBpZiB5b3UgY291 bGQgdHJ5IHRoZSBmb2xsb3dpbmcKcGF0Y2ggYW5kIHNlZSBpZiBpdCBtYWtlcyBhbnkgZGlmZmVy ZW5jZT8KCmh0dHBzOi8vcGF0Y2h3b3JrLmtlcm5lbC5vcmcvcGF0Y2gvMTExMDY2MTEvCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCk5vdXZlYXUgbWFpbGlu ZyBsaXN0Ck5vdXZlYXVAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vbm91dmVhdQ==