From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: Why is Thunderbolt 3 limited to 2.5 GT/s on Linux? Date: Fri, 28 Jun 2019 14:34:15 +0300 Message-ID: <20190628113415.GL2640@lahna.fi.intel.com> References: <91de711591780e83c70e8f61747725855f6dee99.camel@gmail.com> <20190628103204.GJ2640@lahna.fi.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9405F6E8E5 for ; Fri, 28 Jun 2019 11:34:19 +0000 (UTC) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Timur =?iso-8859-1?Q?Krist=F3f?= Cc: "michael.jamet@intel.com" , "dri-devel@lists.freedesktop.org" List-Id: dri-devel@lists.freedesktop.org T24gRnJpLCBKdW4gMjgsIDIwMTkgYXQgMDE6MDg6MDdQTSArMDIwMCwgVGltdXIgS3Jpc3TDs2Yg d3JvdGU6Cj4gSGkgTWlrYSwKPiAKPiBUaGFua3MgZm9yIHlvdXIgcXVpY2sgcmVwbHkuCj4gCj4g PiA+IDEuIFdoeSBhcmUgdGhlcmUgZm91ciBicmlkZ2UgZGV2aWNlcz8gMDQ6MDAuMCwgMDQ6MDEu MCBhbmQgMDQ6MDIuMAo+ID4gPiBsb29rCj4gPiA+IHN1cGVyZmx1b3VzIHRvIG1lIGFuZCBub3Ro aW5nIGlzIGNvbm5lY3RlZCB0byB0aGVtLiBJdCBhY3R1YWxseQo+ID4gPiBnaXZlcwo+ID4gPiBt ZSB0aGUgZmVlbGluZyB0aGF0IHRoZSBUQjMgZHJpdmVyIGNyZWF0ZXMgNCBkZXZpY2VzIHdpdGgg Mi41IEdUL3MKPiA+ID4gZWFjaCwgaW5zdGVhZCBvZiBvbmUgZGV2aWNlIHRoYXQgY2FuIGRvIHRo ZSBmdWxsIDggR1Qvcy4KPiA+IAo+ID4gQmVjYXVzZSBpdCBpcyBzdGFuZGFyZCBQQ0llIHN3aXRj aCB3aXRoIG9uZSB1cHN0cmVhbSBwb3J0IGFuZCBuCj4gPiBkb3duc3RyZWFtIHBvcnRzLgo+IAo+ IFN1cmUsIHRob3VnaCBpbiB0aGlzIGNhc2UgMyBvZiB0aG9zZSBkb3duc3RyZWFtIHBvcnRzIGFy ZSBub3QgZXhwb3NlZAo+IGJ5IHRoZSBoYXJkd2FyZSwgc28gaXQncyBhIGJpdCBzdXJwcmlzaW5n IHRvIHNlZSB0aGVtIHRoZXJlLgoKVGhleSBsZWFkIHRvIG90aGVyIHBlcmlwaGVyYWxzIG9uIHRo ZSBUQlQgaG9zdCByb3V0ZXIgc3VjaCBhcyB0aGUgVEJUCmNvbnRyb2xsZXIgYW5kIHhIQ0kuIEFs c28gdGhlcmUgYXJlIHR3byBkb3duc3RyZWFtIHBvcnRzIGZvciBleHRlbnNpb24KZnJvbSB3aGlj aCB5b3UgZUdQVSBpcyB1c2luZyBvbmUuCgo+IFdoeSBJIGFza2VkIGFib3V0IGl0IGlzIGJlY2F1 c2UgSSBoYXZlIGEgc3VzcGljaW9uIHRoYXQgbWF5YmUgdGhlCj4gYmFuZHdpZHRoIGlzIGFsbG9j YXRlZCBlcXVhbGx5IGJldHdlZW4gdGhlIDQgZG93bnN0cmVhbSBwb3J0cywgZXZlbgo+IHRob3Vn aCBvbmx5IG9uZSBvZiB0aGVtIGlzIHVzZWQuCj4gCj4gPiAKPiA+ID4gMi4gV2h5IGFyZSBzb21l IG9mIHRoZSBicmlkZ2UgZGV2aWNlcyBvbmx5IGNhcGFibGUgb2YgMi41IEdUL3MKPiA+ID4gYWNj b3JkaW5nIHRvIGxzcGNpPwo+ID4gCj4gPiBZb3UgbmVlZCB0byB0YWxrIHRvIGxzcGNpIG1haW50 YWluZXIuCj4gCj4gU29ycnkgaWYgdGhlIHF1ZXN0aW9uIHdhcyB1bmNsZWFyLgo+IEl0J3Mgbm90 IG9ubHkgbHNwY2ksIHRoZSBrZXJuZWwgYWxzbyBwcmludHMgYSB3YXJuaW5nIGFib3V0IGl0Lgo+ IAo+IExpa2UgSSBzYWlkIHRoZSBkZXZpY2UgcmVhbGx5IGlzIGxpbWl0ZWQgdG8gMi41IEdUL3Mg ZXZlbiB0aG91Z2ggaXQKPiBzaG91bGQgYmUgYWJsZSB0byBkbyA4IEdUL3MuCgpUaGVyZSBpcyBU aHVuZGVyYm9sdCBsaW5rIGJldHdlZW4gdGhlIGhvc3Qgcm91dGVyICh5b3VyIGhvc3Qgc3lzdGVt KSBhbmQKdGhlIGVHUFUgYm94LiBUaGF0IGxpbmsgaXMgbm90IGxpbWl0ZWQgdG8gMi41IEdUL3Mg c28gZXZlbiBpZiB0aGUgc2xvdApjbGFpbXMgaXQgaXMgUENJIGdlbjEgdGhlIGFjdHVhbCBiYW5k d2lkdGggY2FuIGJlIG11Y2ggaGlnaGVyIGJlY2F1c2Ugb2YKdGhlIHZpcnR1YWwgbGluay4KCj4g PiA+IDMuIElzIGl0IHBvc3NpYmxlIHRvIG1hbnVhbGx5IHNldCB0aGVtIHRvIDggR1Qvcz8KPiA+ IAo+ID4gTm8gaWRlYS4KPiA+IAo+ID4gQXJlIHlvdSBhY3R1YWxseSBzZWVpbmcgc29tZSBwZXJm b3JtYW5jZSBpc3N1ZSBiZWNhdXNlIG9mIHRoaXMgb3IgYXJlCj4gPiB5b3UganVzdCBjdXJpb3Vz Pwo+IAo+IFllcywgSSBzZWUgYSBub3RpY2FibGUgcGVyZm9ybWFuY2UgaGl0OiBzb21lIGdhbWVz IGhhdmUgdmVyeSBsb3cgZnJhbWUKPiByYXRlIHdoaWxlIG5laXRoZXIgdGhlIENQVSBub3IgdGhl IEdQVSBhcmUgZnVsbHkgdXRpbGl6ZWQuCgpJcyB0aGF0IHByb2JsZW0gaW4gTGludXggb25seSBv ciBkbyB5b3Ugc2VlIHRoZSBzYW1lIGlzc3VlIGluIFdpbmRvd3MgYXMKd2VsbD8KX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcg bGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVs