From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dhinakaran Pandiyan Subject: Re: [PATCH v2 1/2] drm/i915/mst: Do not retrain new links Date: Wed, 18 Jul 2018 14:30:18 -0700 Message-ID: <1531949418.28553.59.camel@intel.com> References: <20180718171943.3246-1-dhinakaran.pandiyan@intel.com> <20180718174506.GA26467@intel.com> <1531946052.28553.48.camel@intel.com> <20180718203138.GE26467@intel.com> Reply-To: dhinakaran.pandiyan@intel.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id 000D36E04F for ; Wed, 18 Jul 2018 21:05:11 +0000 (UTC) In-Reply-To: <20180718203138.GE26467@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Manasi Navare Cc: intel-gfx@lists.freedesktop.org, Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCAyMDE4LTA3LTE4IGF0IDEzOjMxIC0wNzAwLCBNYW5hc2kgTmF2YXJlIHdyb3RlOgo+ IE9uIFdlZCwgSnVsIDE4LCAyMDE4IGF0IDAxOjM0OjEyUE0gLTA3MDAsIERoaW5ha2FyYW4gUGFu ZGl5YW4gd3JvdGU6Cj4gPiAKPiA+IE9uIFdlZCwgMjAxOC0wNy0xOCBhdCAxMDo0NSAtMDcwMCwg TWFuYXNpIE5hdmFyZSB3cm90ZToKPiA+ID4gCj4gPiA+IE9uIFdlZCwgSnVsIDE4LCAyMDE4IGF0 IDEwOjE5OjQyQU0gLTA3MDAsIERoaW5ha2FyYW4gUGFuZGl5YW4KPiA+ID4gd3JvdGU6Cj4gPiA+ ID4gCj4gPiA+ID4gCj4gPiA+ID4gVGhlIHNob3J0IHB1bHNlIGhhbmRsZXIgY2hlY2tzIGlmIGNo YW5uZWwgZXF1YWxpemF0aW9uIGlzIG9rYXkKPiA+ID4gPiBhbmQKPiA+ID4gPiBnb2VzIG9udG8g cmV0cmFpbiBhIGxpbmsgaWYgdGhlcmUgYXJlIGFjdGl2ZSBNU1QgbGlua3MuIFRoaXMKPiA+ID4g PiByZXRyYWluaW5nCj4gPiA+ID4gcGF0aCBpcyBub3QgbWVhbnQgZm9yIG5ldyBNU1QgY29ubmVj dGlvbnMsIGJ1dCBkdWUgdG8gYSBidWcKPiA+ID4gPiBlbHNld2hlcmUsIGlmCj4gPiA+ID4gYWN0 aXZlX21zdF9saW5rcyBpcyA8IDAgdGhlIGJvb2xlYW4gY2hlY2sgZm9yIGFjdGl2ZV9tc3RfbGlu a3MKPiA+ID4gPiBwYXNzZXMgYW5kCj4gPiA+IFRoaXMgYnVnIGlzIHByb2JhYmx5IGFyb3VuZCB0 aGUgd2F5IHdlIHRyYWNrIHRoZSBhY3RpdmVfbXN0X2xpbmtzCj4gPiA+IGFuZAo+ID4gPiB3ZSBh cmUKPiA+ID4gcHJvYmFibHkgZGVjcmVtZW50aW5nIGl0IG1vcmUgdGltZXMgdGhhbiB0aGUgYXZh aWxhYmxlIGxpbmtzCj4gPiBZZWFoLCB0aGF0IGluZGVlZCBpcyBvbmUgYXNwZWN0IG9mIHRoZSBi dWcuCj4gPiAKPiA+ID4gCj4gPiA+IMKgYW5kIHNpbmNlIGl0cyBhbiBpbnQKPiA+ID4gdmFyaWFi bGUgaXQgZ29lcyB0byBuZWdhdGl2ZSB3aGljaCBpcyBub3QgdGhlIGV4cGVjdGVkIGJlaGF2aW91 ci4KPiA+ID4gV2h5IG5vdCBjaGFuZ2UgdGhpcyBhY3RpdmVfbXN0X2xpbmtzIHZhcmlhYmxlIHRv IGJlIGFuIHVuc2lnbmVkCj4gPiA+IGludAo+ID4gPiBzaW5jZQo+ID4gPiB3ZSBkbyBub3QgZXhw ZWN0IGFueSBuZWdhdGl2ZSB2YWx1ZXMgZm9yIHRoaXMgYW55d2F5cy4KPiA+ID4gVGhhdCB3YXkg d2UgY2FuIHN0aWxsIGNoZWNrIGFnYWluc3QganVzdCBpbnRlbF9kcC0KPiA+ID4gPmFjdGl2ZV9t c3RfbGlua3MKPiA+ID4gYXMgb3Bwb3NlZCBjaGVja2luZwo+ID4gPiBmb3IgaXQgYmVpbmcgZ3Jl YXRlciB0aGFuIDAgYW5kIHdvdWxkIGFsc28gbm90IG5lZWQgYSBXQVJOX09OCj4gPiA+IGhlcmUu Cj4gPiBJIGRpZCBub3QgZ2V0IHRoaXMsIG1pbmQgc2hhcmluZyBjb2RlIGRpZmY/Cj4gTXkgcXVl c3Rpb24gd2FzIGlmIG5lZ2F0aXZlIHZhbHVlcyBmb3IgYWN0aXZlX21zdF9saW5rcyBhcmUgbmV2 ZXIKPiBhbGxvd2VkCj4gdGhlbiB3aHkgY2FudCB3ZSBkZWZpbmUgaXQgYXMgYW4gdW5zaWduZWQg aW50IGFuZCBhdm9pZCB0aHJ3b2luZyBhCj4gV2FybmluZyBsYXRlci4KSG1tLiBJIHN0aWxsIGRv IG5vdCBnZXQgaG93IGRlZmluaW5nIGl0IGFuIHVuc2lnbmVkIGludCB3aWxsIHByZXZlbnQKdGhl IGRlY3JlbWVudCBvcCBmcm9tIG1ha2luZyBpbnRlbF9kcC0+YWN0aXZlX21zdF9saW5rcyA9PSB0 cnVlLgoKPiAKPiBBbHNvIEkgdGhpbmsgdGhlIGZvbGxvd2luZyBjaGVjayBjYW4gYmUgYWRkZWQg aW4KPiBpbnRlbF9tc3RfcG9zdF9kaXNhYmxlX2RwKCk6Cj4gCj4gaWYgKGludGVsX2RwLT5hY3Rp dmVfbXN0X2xpbmtzKQo+IAlpbnRlbF9kcC0+YWN0aXZlX21zdF9saW5rLS07CgpUaGF0J3MganVz dCBiYW5kLWFpZCwgd2Ugd2lsbCBzdGlsbCBnbyB0aHJvdWdoIHRoZSBwb3N0X2Rpc2FibGUKc2Vx dWVuY2Ugd2hpbGUgbm90IGRlY3JlbWVudGluZyAtPmFjdGl2ZV9tc3RfbGlua3MuCgoKPiAKPiB0 byBhdm9pZCBnZXR0aW5nIG5lZ2F0aXZlIHZhbHVlcyBpbiB0aGUgZmlyc3QgcGxhY2UuCj4gCj4g TWFuYXNpCj4gCj4gPiAKPiA+IAo+ID4gLURLCj4gPiAKPiA+ID4gCj4gPiA+IAo+ID4gPiBNYW5h c2kKPiA+ID4gCj4gPiA+ID4gCj4gPiA+ID4gCj4gPiA+ID4gd2UgcHJvY2VlZCB0byByZXRyYWlu IGEgbmV3IGxpbmsuIFRoaXMgcmVzdWx0cyBpbiBhIHNlcXVlbmNlIG9mCj4gPiA+ID4gZmFpbGVk IGxpbmsKPiA+ID4gPiB0cmFpbmluZyBhdHRlbXB0cywgbW9zdCBsaWtlbHkgZHVlIHRvIHRoZSBo YXJkd2FyZSBub3Qgc2V0dXAKPiA+ID4gPiBmb3IKPiA+ID4gPiBsaW5rCj4gPiA+ID4gdHJhaW5p bmcgYXQgdGhhdCBwb2ludCBpLmUuLCBtaXNzaW5nIHRoZSBEREkgcHJlX2VuYWJsZQo+ID4gPiA+ IHNlcXVlbmNlLgo+ID4gPiA+IAo+ID4gPiA+IFvCoMKgwqA4MC4zMDEyNzJdIFtkcm06aW50ZWxf ZHBfY2hlY2tfbXN0X3N0YXR1c10gY2hhbm5lbCBFUSBub3QKPiA+ID4gPiBvaywKPiA+ID4gPiBy ZXRyYWluaW5nCj4gPiA+ID4gW8KgwqDCoDgwLjMwMTMxMl0gW2RybTppbnRlbF9kZGlfcHJlcGFy ZV9saW5rX3JldHJhaW5dICpFUlJPUioKPiA+ID4gPiBUaW1lb3V0Cj4gPiA+ID4gd2FpdGluZyBm b3IgRERJIEJVRiBDIGlkbGUgYml0Cj4gPiA+ID4gCj4gPiA+ID4gVGhlIGFib3ZlIGVycm9yIGdp dmVzIHVzIGEgaGludCBzb21ldGhpbmcgd2VudCB3cm9uZyBiZWZvcmUKPiA+ID4gPiBsaW5rCj4g PiA+ID4gdHJhaW5pbmcgc3RhcnRlZC4KPiA+ID4gPiAKPiA+ID4gPiBDaGVjayBmb3IgYSBwb3Np dGl2ZSB2YWx1ZSBvZiBhY3RpdmVfbXN0X2xpbmtzIGFuZCB0aHJvdyBpbiBhCj4gPiA+ID4gd2Fy bmluZyBmb3IKPiA+ID4gPiBpbnZhbGlkIGFjdGl2ZV9tc3RfbGlua3MgYXMgZGVidWcgYWlkLgo+ ID4gPiA+IAo+ID4gPiA+IENjOiBOYXRoYW4gQ2lvYmFudSA8bmF0aGFuLmQuY2lvYmFudUBsaW51 eC5pbnRlbC5jb20+Cj4gPiA+ID4gQ2M6IFJvZHJpZ28gVml2aSA8cm9kcmlnby52aXZpQGludGVs LmNvbT4KPiA+ID4gPiBTaWduZWQtb2ZmLWJ5OiBEaGluYWthcmFuIFBhbmRpeWFuIDxkaGluYWth cmFuLnBhbmRpeWFuQGludGVsLmMKPiA+ID4gPiBvbT4KPiA+ID4gPiAtLS0KPiA+ID4gPiDCoGRy aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMgfCA0ICsrKy0KPiA+ID4gPiDCoDEgZmlsZSBj aGFuZ2VkLCAzIGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKPiA+ID4gPiAKPiA+ID4gPiBk aWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gPiA+IGIvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gPiA+IGluZGV4IGI0NWIwODQyMGMxZi4u MmQ2MWZmMDFjZjUxIDEwMDY0NAo+ID4gPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2RwLmMKPiA+ID4gPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jCj4g PiA+ID4gQEAgLTQyMTMsMTIgKzQyMTMsMTQgQEAgaW50ZWxfZHBfY2hlY2tfbXN0X3N0YXR1cyhz dHJ1Y3QKPiA+ID4gPiBpbnRlbF9kcAo+ID4gPiA+ICppbnRlbF9kcCkKPiA+ID4gPiDCoAkJaW50 IHJldCA9IDA7Cj4gPiA+ID4gwqAJCWludCByZXRyeTsKPiA+ID4gPiDCoAkJYm9vbCBoYW5kbGVk Owo+ID4gPiA+ICsKPiA+ID4gPiArCQlXQVJOX09OX09OQ0UoaW50ZWxfZHAtPmFjdGl2ZV9tc3Rf bGlua3MgPCAwKTsKPiA+ID4gPiDCoAkJYnJldCA9IGludGVsX2RwX2dldF9zaW5rX2lycV9lc2ko aW50ZWxfZHAsCj4gPiA+ID4gZXNpKTsKPiA+ID4gPiDCoGdvX2FnYWluOgo+ID4gPiA+IMKgCQlp ZiAoYnJldCA9PSB0cnVlKSB7Cj4gPiA+ID4gwqAKPiA+ID4gPiDCoAkJCS8qIGNoZWNrIGxpbmsg c3RhdHVzIC0gZXNpWzEwXSA9Cj4gPiA+ID4gMHgyMDBjICovCj4gPiA+ID4gLQkJCWlmIChpbnRl bF9kcC0+YWN0aXZlX21zdF9saW5rcyAmJgo+ID4gPiA+ICsJCQlpZiAoaW50ZWxfZHAtPmFjdGl2 ZV9tc3RfbGlua3MgPiAwICYmCj4gPiA+ID4gwqAJCQnCoMKgwqDCoCFkcm1fZHBfY2hhbm5lbF9l cV9vaygmZXNpWzEwXSwKPiA+ID4gPiBpbnRlbF9kcC0+bGFuZV9jb3VudCkpIHsKPiA+ID4gPiDC oAkJCQlEUk1fREVCVUdfS01TKCJjaGFubmVsIEVRIG5vdAo+ID4gPiA+IG9rLAo+ID4gPiA+IHJl dHJhaW5pbmdcbiIpOwo+ID4gPiA+IMKgCQkJCWludGVsX2RwX3N0YXJ0X2xpbmtfdHJhaW4oaW50 ZQo+ID4gPiA+IGxfZHAKPiA+ID4gPiApOwo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdAo+IEludGVsLWdmeEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2ludGVsLWdmeApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9pbnRlbC1nZngK