From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jim Bride Subject: Re: [PATCH v6] drm/i915/edp: Be less aggressive about changing link config on eDP Date: Tue, 22 Aug 2017 09:32:56 -0700 Message-ID: <20170822163256.GA9388@shiv> References: <1502313667-18127-1-git-send-email-jim.bride@linux.intel.com> <1503349416-29151-1-git-send-email-jim.bride@linux.intel.com> <1503358055.1890.55.camel@rdvivi-vienna> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5749C89D81 for ; Tue, 22 Aug 2017 16:35:59 +0000 (UTC) Content-Disposition: inline In-Reply-To: <1503358055.1890.55.camel@rdvivi-vienna> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Vivi, Rodrigo" Cc: "Zanoni, Paulo R" , "Nikula, Jani" , "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBBdWcgMjEsIDIwMTcgYXQgMTE6Mjc6MzdQTSArMDAwMCwgVml2aSwgUm9kcmlnbyB3 cm90ZToKPiBPbiBNb24sIDIwMTctMDgtMjEgYXQgMTQ6MDMgLTA3MDAsIEppbSBCcmlkZSB3cm90 ZToKPiA+IFRoaXMgc2V0IG9mIGNoYW5nZXMgaGFzIHNvbWUgaGlzdG9yeSB0byB0aGVtLiAgVGhl cmUgd2VyZSBzZXZlcmFsIGF0dGVtcHRzCj4gPiB0byBhZGQgd2hhdCB3YXMgY2FsbGVkICJmYXN0 IGxpbmsgdHJhaW5pbmciIHRvIGk5MTUsIHdoaWNoIGFjdHVhbGx5IHdhc24ndAo+ID4gZmFzdCBs aW5rIHRyYWluaW5nIGFzIHBlciB0aGUgRFAgc3BlYy4gIFRoZXNlIGNoYW5nZXMgd2VyZToKPiA+ IAo+ID4gY29tbWl0IDVmYTgzNmE5ZDg1OSAoImRybS9pOTE1OiBEUCBsaW5rIHRyYWluaW5nIG9w dGltaXphdGlvbiIpCj4gPiBjb21taXQgNGU5NmM5Nzc0MmY0ICgiZHJtL2k5MTU6IGVEUCBsaW5r IHRyYWluaW5nIG9wdGltaXphdGlvbiIpCj4gPiAKPiA+IHdoaWNoIHdlcmUgZXZlbnR1YWxseSBo YW5kLXJldmVydGVkIGJ5Ogo+ID4gCj4gPiBjb21taXQgMzQ1MTFkY2U0YjM1ICgiZHJtL2k5MTU6 IFJldmVydCBEaXNwbGF5UG9ydCBmYXN0IGxpbmsgdHJhaW5pbmcKPiA+ICAgICAgICAgICAgICAg ICAgICAgIGZlYXR1cmUiKQo+ID4gCj4gPiBpbiBrZXJuZWwgNC43LXJjNC4gIFRoZSBlRFAgcGll Y2VzIG9mIHRoZSBhYm92ZSByZXZlcnQsIGhvd2V2ZXIsIGhhZCBzb21lCj4gPiB2ZXJ5IGJhZCBz aWRlLWVmZmVjdHMgb24gUFNSIGZ1bmN0aW9uYWxpdHkgb24gU2t5bGFrZS4gVGhlIGlzc3VlIGF0 Cj4gPiBoYW5kIGlzIHRoYXQgd2hlbiBQU1IgZXhpdHMgaTkxNSBicmllZmx5IGVtaXRzIFRQMSBm b2xsb3dlZCBieSBUUDIvMwo+ID4gKGRlcGVuZGluZyBvbiB0aGUgb3JpZ2luYWwgbGluayBjb25m aWd1cmF0aW9uKSBpbiBvcmRlciB0byBxdWlja2x5IGdldAo+ID4gdGhlIHNvdXJjZSBhbmQgc2lu ayBiYWNrIGluIHN5bmNocm9uaXphdGlvbiBhY3Jvc3MgdGhlIGxpbmsgYmVmb3JlIGhhbmRpbmcK PiA+IGNvbnRyb2wgYmFjayB0byB0aGUgaTkxNS4gIFRoZXJlJ3MgYW4gYXNzdW1wdGlvbiB0aGF0 IG5vbmUgb2YgdGhlIGxpbmsKPiA+IGNvbmZpZ3VyYXRpb24gaW5mb3JtYXRpb24gaGFzIGNoYW5n ZWQgKGFuZCB0aHVzIGl0J3Mgc3RpbGwgdmFsaWQpIHNpbmNlIHRoZQo+ID4gbGFzdCBmdWxsIGxp bmsgdHJhaW5pbmcgb3BlcmF0aW9uLiAgVGhlIHJldmVydCBhYm92ZSB3YXMgaWRlbnRpZmllZCB2 aWEgYQo+ID4gYmlzZWN0IGFzIHRoZSBjYXVzZSBvZiBzb21lIG9mIFNreWxha2UncyBQU1Igd29l cy4gIFRoaXMgcGF0Y2gsIGxhcmdlbHkKPiA+IGJhc2VkIG9uIGNvbW1pdCA0ZTk2Yzk3NzQyZjQg KCJkcm0vaTkxNTogZURQIGxpbmsgdHJhaW5pbmcgb3B0aW1pemF0aW9uIikKPiA+IHB1dHMgdGhl IGVEUCBwb3J0aW9ucyBvZiB0aGlzIHBhdGNoIGJhY2sgaW4gcGxhY2UuICBOb25lIG9mIHRoZSBm bGlja2VyaW5nCj4gPiBpc3N1ZXMgdGhhdCBzcHVycmVkIHRoZSByZXZlcnQgaGF2ZSBiZWVuIHNl ZW4sIGFuZCBJIHN1c3BlY3QgdGhlIHJlYWwKPiA+IGN1bHByaXRzIGhlcmUgd2VyZSBhZGRyZXNz ZWQgYnkgc29tZSBvZiB0aGUgcmVjZW50IGxpbmsgdHJhaW5pbmcgY2hhbmdlcwo+ID4gdGhhdCBN YW5hc2kgaGFzIGltcGxlbWVudGVkLCBhbmQgUFNSIG9uIFNreWxha2UgaXMgZGVmaW5pdGVseSBt b3JlIGhhcHB5Cj4gPiB3aXRoIHRoZXNlIGNoYW5nZXMgaW4tcGxhY2UuCj4gPiAKPiA+IHYyIGFu ZCB2MzogUmViYXNlCj4gPiB2NDogKiBDbGVhbiB1cCBhY2Nlc3NlcyB0byB0cmFpbl9zZXRfdmFs aWQgYSBiaXQgZm9yIGVhc2llcgo+ID4gICAgICAgcmVhZGluZy4gKENocmlzKQo+ID4gICAgICog UmViYXNlCj4gPiB2NTogKiBDaGVja3BhdGNoIGNsZWFudXAKPiA+ICAgICAqIFJlYmFzZQo+ID4g djY6ICogaXNfZWRwKCkgPT4gaW50ZWxfZHBfaXNfZWRwKCkKPiA+ICAgICAqIHJlYmFzZQo+ID4g Cj4gPiBDYzogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gPiBDYzog Um9kcmlnbyBWaXZpIDxyb2RyaWdvLnZpdmlAaW50ZWwuY29tPgo+ID4gQ2M6IFBhdWxvIFphbm9u aSA8cGF1bG8uci56YW5vbmlAaW50ZWwuY29tPgo+ID4gQ2M6IE1hbmFzaSBEIE5hdmFyZSA8bWFu YXNpLmQubmF2YXJlQGludGVsLmNvbT4KPiA+IENjOiBNaWthIEthaG9sYSA8bWlrYS5rYWhvbGFA aW50ZWwuY29tPgo+ID4gQ2M6IEphbmkgTmlrdWxhIDxqYW5pLm5pa3VsYUBpbnRlbC5jb20+Cj4g PiBGaXhlczogMzQ1MTFkY2U0ICgiZHJtL2k5MTU6IFJldmVydCBEaXNwbGF5UG9ydCBmYXN0IGxp bmsgdHJhaW5pbmcgZmVhdHVyZSIpCj4gPiBTaWduZWQtb2ZmLWJ5OiBKaW0gQnJpZGUgPGppbS5i cmlkZUBsaW51eC5pbnRlbC5jb20+Cj4gPiAtLS0KPiA+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9kcC5jICAgICAgICAgICAgICAgfCAgMiArKwo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2RwX2xpbmtfdHJhaW5pbmcuYyB8IDE1ICsrKysrKysrKysrKysrLQo+ID4gIGRyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oICAgICAgICAgICAgICB8ICAyICsrCj4gPiAgMyBm aWxlcyBjaGFuZ2VkLCAxOCBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCj4gPiAKPiA+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gaW5kZXggZTM4NTY1OC4uMzhiYzdlMCAxMDA2NDQKPiA+ IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiA+ICsrKyBiL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiA+IEBAIC00NzUwLDYgKzQ3NTAsNyBAQCBpbnRlbF9k cF9sb25nX3B1bHNlKHN0cnVjdCBpbnRlbF9jb25uZWN0b3IgKmludGVsX2Nvbm5lY3RvcikKPiA+ ICAJCWludGVsX2RwLT5tYXhfbGlua19yYXRlID0gaW50ZWxfZHBfbWF4X2NvbW1vbl9yYXRlKGlu dGVsX2RwKTsKPiA+ICAKPiA+ICAJCWludGVsX2RwLT5yZXNldF9saW5rX3BhcmFtcyA9IGZhbHNl Owo+ID4gKwkJaW50ZWxfZHAtPnRyYWluX3NldF92YWxpZCA9IGZhbHNlOwo+ID4gIAl9Cj4gPiAg Cj4gPiAgCWludGVsX2RwX3ByaW50X3JhdGVzKGludGVsX2RwKTsKPiA+IEBAIC02MDE5LDYgKzYw MjAsNyBAQCBpbnRlbF9kcF9pbml0X2Nvbm5lY3RvcihzdHJ1Y3QgaW50ZWxfZGlnaXRhbF9wb3J0 ICppbnRlbF9kaWdfcG9ydCwKPiA+ICAJaW50ZWxfZHBfc2V0X3NvdXJjZV9yYXRlcyhpbnRlbF9k cCk7Cj4gPiAgCj4gPiAgCWludGVsX2RwLT5yZXNldF9saW5rX3BhcmFtcyA9IHRydWU7Cj4gPiAr CWludGVsX2RwLT50cmFpbl9zZXRfdmFsaWQgPSBmYWxzZTsKPiA+ICAJaW50ZWxfZHAtPnBwc19w aXBlID0gSU5WQUxJRF9QSVBFOwo+ID4gIAlpbnRlbF9kcC0+YWN0aXZlX3BpcGUgPSBJTlZBTElE X1BJUEU7Cj4gPiAgCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf ZHBfbGlua190cmFpbmluZy5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHBfbGlua190 cmFpbmluZy5jCj4gPiBpbmRleCAwNTkwN2ZhLi43OWZlMzY5IDEwMDY0NAo+ID4gLS0tIGEvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHBfbGlua190cmFpbmluZy5jCj4gPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcF9saW5rX3RyYWluaW5nLmMKPiA+IEBAIC05NCw3ICs5 NCw4IEBAIHN0YXRpYyBib29sCj4gPiAgaW50ZWxfZHBfcmVzZXRfbGlua190cmFpbihzdHJ1Y3Qg aW50ZWxfZHAgKmludGVsX2RwLAo+ID4gIAkJCXVpbnQ4X3QgZHBfdHJhaW5fcGF0KQo+ID4gIHsK PiA+IC0JbWVtc2V0KGludGVsX2RwLT50cmFpbl9zZXQsIDAsIHNpemVvZihpbnRlbF9kcC0+dHJh aW5fc2V0KSk7Cj4gPiArCWlmICghaW50ZWxfZHAtPnRyYWluX3NldF92YWxpZCkKPiA+ICsJCW1l bXNldChpbnRlbF9kcC0+dHJhaW5fc2V0LCAwLCBzaXplb2YoaW50ZWxfZHAtPnRyYWluX3NldCkp Owo+ID4gIAlpbnRlbF9kcF9zZXRfc2lnbmFsX2xldmVscyhpbnRlbF9kcCk7Cj4gPiAgCXJldHVy biBpbnRlbF9kcF9zZXRfbGlua190cmFpbihpbnRlbF9kcCwgZHBfdHJhaW5fcGF0KTsKPiA+ICB9 Cj4gPiBAQCAtMTYyLDkgKzE2MywxOCBAQCBpbnRlbF9kcF9saW5rX3RyYWluaW5nX2Nsb2NrX3Jl Y292ZXJ5KHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4gPiAgCQkJCSAgICAgICBEUF9UUkFJ TklOR19QQVRURVJOXzEgfAo+ID4gIAkJCQkgICAgICAgRFBfTElOS19TQ1JBTUJMSU5HX0RJU0FC TEUpKSB7Cj4gPiAgCQlEUk1fRVJST1IoImZhaWxlZCB0byBlbmFibGUgbGluayB0cmFpbmluZ1xu Iik7Cj4gPiArCQlpbnRlbF9kcC0+dHJhaW5fc2V0X3ZhbGlkID0gZmFsc2U7Cj4gPiAgCQlyZXR1 cm4gZmFsc2U7Cj4gPiAgCX0KPiA+ICAKPiA+ICsJLyoKPiA+ICsJICogVGhlIGluaXRpYWwgc2V0 IG9mIGxpbmsgcGFyYW1ldGVycyBhcmUgc2V0IGJ5IHRoaXMgcG9pbnQsIHNvIGdvCj4gPiArCSAq IGFoZWFkIGFuZCBzZXQgaW50ZWxfZHAtPnRyYWluX3NldF92YWxpZCB0byBmYWxzZSBpbiBjYXNl IGFueSBvZgo+ID4gKwkgKiB0aGUgc3VjY2VlZGluZyBzdGVwcyBmYWlsLiAgSXQgd2lsbCBiZSBz ZXQgYmFjayB0byB0cnVlIGlmIHdlIHdlcmUKPiA+ICsJICogYWJsZSB0byBhY2hpZXZlIGNsb2Nr IHJlY292ZXJ5IGluIHRoZSBzcGVjaWZpZWQgY29uZmlndXJhdGlvbi4KPiA+ICsJICovCj4gPiAr CWludGVsX2RwLT50cmFpbl9zZXRfdmFsaWQgPSBmYWxzZTsKPiA+ICsKPiA+ICAJdm9sdGFnZV90 cmllcyA9IDE7Cj4gPiAgCW1heF92c3dpbmdfdHJpZXMgPSAwOwo+ID4gIAlmb3IgKDs7KSB7Cj4g PiBAQCAtMTc5LDYgKzE4OSw3IEBAIGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2xvY2tfcmVjb3Zl cnkoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPiA+ICAKPiA+ICAJCWlmIChkcm1fZHBfY2xv Y2tfcmVjb3Zlcnlfb2sobGlua19zdGF0dXMsIGludGVsX2RwLT5sYW5lX2NvdW50KSkgewo+ID4g IAkJCURSTV9ERUJVR19LTVMoImNsb2NrIHJlY292ZXJ5IE9LXG4iKTsKPiA+ICsJCQlpbnRlbF9k cC0+dHJhaW5fc2V0X3ZhbGlkID0gaW50ZWxfZHBfaXNfZWRwKGludGVsX2RwKTsKPiAKPiBJcyB0 aGlzIG9uZSByZWFsbHkgZW5vdWdoIGZvciB0aGlzIGNhc2U/CgpZZXAsIGl0J3MgdGhlIG9ubHkg c3VjY2VzcyBwYXRoLgoKPiBJIHdvbmRlciBpZiB3ZSBzaG91bGQgbWVyZ2UgaXNfZWRwIGFuZCBp bnRlbF9kcF9pc19lZHAgc29tZWhvdyBpbnN0ZWFkCj4gb2YgZmlnaHRpbmcgd2l0aCBuYW1lcyBh bmQgdGhlaXIgbWVhbmluZ3MuLi4KCkphbmkgcGF0Y2hlZCB0aGUgdHdvIGZ1bmN0aW9ucyB3aGls ZSBJIHdhcyB3cmVzdGxpbmcgd2l0aCBob3cgdG8KcmVuYW1lIGlzX2VkcCgpLiAgRXZlbiB0aG91 Z2ggaXQncyBwb3RlbnRpYWxseSBjb25mdXNpbmcsIEkgZG8KdGhpbmsgaW50ZWxfZHBfaXNfZWRw KCkgaXMgcHJvYmFibHkgYXMgZ29vZCBhcyBpdCBnZXRzLgoKPiA+ICAJCQlyZXR1cm4gdHJ1ZTsK PiA+ICAJCX0KPiA+ICAKPiA+IEBAIC0yNTYsNiArMjY3LDcgQEAgaW50ZWxfZHBfbGlua190cmFp bmluZ19jaGFubmVsX2VxdWFsaXphdGlvbihzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ID4g IAkJCQkgICAgIHRyYWluaW5nX3BhdHRlcm4gfAo+ID4gIAkJCQkgICAgIERQX0xJTktfU0NSQU1C TElOR19ESVNBQkxFKSkgewo+ID4gIAkJRFJNX0VSUk9SKCJmYWlsZWQgdG8gc3RhcnQgY2hhbm5l bCBlcXVhbGl6YXRpb25cbiIpOwo+ID4gKwkJaW50ZWxfZHAtPnRyYWluX3NldF92YWxpZCA9IGZh bHNlOwo+ID4gIAkJcmV0dXJuIGZhbHNlOwo+ID4gIAl9Cj4gPiAgCj4gPiBAQCAtMjk2LDYgKzMw OCw3IEBAIGludGVsX2RwX2xpbmtfdHJhaW5pbmdfY2hhbm5lbF9lcXVhbGl6YXRpb24oc3RydWN0 IGludGVsX2RwICppbnRlbF9kcCkKPiA+ICAJLyogVHJ5IDUgdGltZXMsIGVsc2UgZmFpbCBhbmQg dHJ5IGF0IGxvd2VyIEJXICovCj4gPiAgCWlmICh0cmllcyA9PSA1KSB7Cj4gPiAgCQlpbnRlbF9k cF9kdW1wX2xpbmtfc3RhdHVzKGxpbmtfc3RhdHVzKTsKPiA+ICsJCWludGVsX2RwLT50cmFpbl9z ZXRfdmFsaWQgPSBmYWxzZTsKPiA+ICAJCURSTV9ERUJVR19LTVMoIkNoYW5uZWwgZXF1YWxpemF0 aW9uIGZhaWxlZCA1IHRpbWVzXG4iKTsKPiA+ICAJfQo+ID4gIAo+ID4gZGlmZiAtLWdpdCBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfZHJ2LmgKPiA+IGluZGV4IDI5NDBkMzkuLjg5MWM4OTIgMTAwNjQ0Cj4gPiAtLS0gYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfZHJ2LmgKPiA+IEBAIC05OTUsNiArOTk1LDcgQEAgc3RydWN0IGludGVsX2RwIHsK PiA+ICAJc3RydWN0IGRybV9kcF9hdXggYXV4Owo+ID4gIAllbnVtIGludGVsX2Rpc3BsYXlfcG93 ZXJfZG9tYWluIGF1eF9wb3dlcl9kb21haW47Cj4gPiAgCXVpbnQ4X3QgdHJhaW5fc2V0WzRdOwo+ ID4gKwlib29sIHRyYWluX3NldF92YWxpZDsKPiA+ICAJaW50IHBhbmVsX3Bvd2VyX3VwX2RlbGF5 Owo+ID4gIAlpbnQgcGFuZWxfcG93ZXJfZG93bl9kZWxheTsKPiA+ICAJaW50IHBhbmVsX3Bvd2Vy X2N5Y2xlX2RlbGF5Owo+ID4gQEAgLTE1NDksNiArMTU1MCw3IEBAIHN0YXRpYyBpbmxpbmUgdW5z aWduZWQgaW50IGludGVsX2RwX3VudXNlZF9sYW5lX21hc2soaW50IGxhbmVfY291bnQpCj4gPiAg fQo+ID4gIAo+ID4gIGJvb2wgaW50ZWxfZHBfcmVhZF9kcGNkKHN0cnVjdCBpbnRlbF9kcCAqaW50 ZWxfZHApOwo+ID4gK2Jvb2wgaXNfZWRwKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApOwoKV2hv b3BzLiAgSSdsbCBmaXggdGhpcy4KCj4gaXQgc2VlbXMgeW91IGRvbid0IG5lZWQgdGhpcyBhbnlt b3JlLi4uCj4gCj4gPiAgaW50IGludGVsX2RwX2xpbmtfcmVxdWlyZWQoaW50IHBpeGVsX2Nsb2Nr LCBpbnQgYnBwKTsKPiA+ICBpbnQgaW50ZWxfZHBfbWF4X2RhdGFfcmF0ZShpbnQgbWF4X2xpbmtf Y2xvY2ssIGludCBtYXhfbGFuZXMpOwo+ID4gIGJvb2wgaW50ZWxfZGlnaXRhbF9wb3J0X2Nvbm5l Y3RlZChzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsCj4gCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QK SW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=