From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v2] drm/i915: Improve DP downstream HPD handling Date: Fri, 27 Oct 2017 22:34:07 +0300 Message-ID: <20171027193407.GL10981@intel.com> References: <20171026194123.21388-1-ville.syrjala@linux.intel.com> <20171027094523.9317-1-ville.syrjala@linux.intel.com> <871slogb7z.fsf@intel.com> 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 4B2FA6E9E2 for ; Fri, 27 Oct 2017 19:34:19 +0000 (UTC) Content-Disposition: inline In-Reply-To: <871slogb7z.fsf@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jani Nikula Cc: intel-gfx@lists.freedesktop.org, David Woodhouse , Pablo , Dhinakaran Pandiyan List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBPY3QgMjcsIDIwMTcgYXQgMDE6MDI6MjRQTSArMDMwMCwgSmFuaSBOaWt1bGEgd3Jv dGU6Cj4gT24gRnJpLCAyNyBPY3QgMjAxNywgVmlsbGUgU3lyamFsYSA8dmlsbGUuc3lyamFsYUBs aW51eC5pbnRlbC5jb20+IHdyb3RlOgo+ID4gRnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5z eXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiA+Cj4gPiBEUCBkb25nbGVzIG1heSBzaWduYWwgZG93 bnN0cmVhbSBIUEQgdmlhIHNob3J0IEhQRCBwdWxzZXMuIFNldHRpbmcgdGhlCj4gPiBzaW5rIHRv IERQTVMgb2ZmIGFwcGFyZW50bHkga2lsbHMgdGhlIGRvd25zdHJlYW0gSFBEIChhdCBsZWFzdCBv biBteQo+ID4gRFAtPlZHQSBkb25nbGUpLCBzbyBza2lwIHRoZSBEUE1TIG9mZiBmb3Igc3VjaCBk b25nbGVzIHdoZW4gd2UgdHVybgo+ID4gb2ZmIHRoZSBwb3J0Lgo+ID4KPiA+IHYyOiBEZWFsIHdp dGggRERJIGFzIHdlbGwgYnkgbW92aW5nIHRoZSBjaGVjayBpbnRvCj4gPiAgICAgaW50ZWxfZHBf c2lua19kcG1zKCkgKERoaW5ha2FyYW4pCj4gPgo+ID4gQ2M6IERoaW5ha2FyYW4gUGFuZGl5YW4g PGRoaW5ha2FyYW4ucGFuZGl5YW5AaW50ZWwuY29tPgo+ID4gQ2M6IERhdmlkIFdvb2Rob3VzZSA8 ZHdtdzJAaW5mcmFkZWFkLm9yZz4KPiA+IENjOiBJbXJlIERlYWsgPGltcmUuZGVha0BpbnRlbC5j b20+Cj4gPiBDYzogUGFibG8gPHBhYmxvZGViaWFzZUBuYW5hbHlzaXMuY29tPgo+ID4gQnVnemls bGE6IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTEwMzQ3Mgo+ ID4gQnVnemlsbGE6IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lk PTk5MTE0Cj4gPiBTaWduZWQtb2ZmLWJ5OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFA bGludXguaW50ZWwuY29tPgo+IAo+IFJldmlld2VkLWJ5OiBKYW5pIE5pa3VsYSA8amFuaS5uaWt1 bGFAaW50ZWwuY29tPgoKVGhhbmtzIGZvciB0aGUgcmV2aWV3LiBQYXRjaCBwdXNoZWQgdG8gZGlu cS4KCj4gCj4gCj4gPiAtLS0KPiA+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIHwg MTggKysrKysrKysrKysrKysrKysrCj4gPiAgMSBmaWxlIGNoYW5nZWQsIDE4IGluc2VydGlvbnMo KykKPiA+Cj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiA+IGluZGV4IGFhNzVmNTVlZWI2MS4u NTkxNjlhNGRjOWQzIDEwMDY0NAo+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf ZHAuYwo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gQEAgLTI1 MDUsNiArMjUwNSwyMSBAQCBzdGF0aWMgdm9pZCBpcm9ubGFrZV9lZHBfcGxsX29mZihzdHJ1Y3Qg aW50ZWxfZHAgKmludGVsX2RwKQo+ID4gIAl1ZGVsYXkoMjAwKTsKPiA+ICB9Cj4gPiAgCj4gPiAr c3RhdGljIGJvb2wgZG93bnN0cmVhbV9ocGRfbmVlZHNfZDAoc3RydWN0IGludGVsX2RwICppbnRl bF9kcCkKPiA+ICt7Cj4gPiArCS8qCj4gPiArCSAqIERQQ0QgMS4yKyBzaG91bGQgc3VwcG9ydCBC UkFOQ0hfREVWSUNFX0NUUkwsIGFuZCB0aHVzCj4gPiArCSAqIGJlIGNhcGFibGUgb2Ygc2lnbmFs bGluZyBkb3duc3RyZWFtIGhwZCB3aXRoIGEgbG9uZyBwdWxzZS4KPiA+ICsJICogV2hldGhlciBv ciBub3QgdGhhdCBtZWFucyBEMyBpcyBzYWZlIHRvIHVzZSBpcyBub3QgY2xlYXIsCj4gPiArCSAq IGJ1dCBsZXQncyBhc3N1bWUgc28gdW50aWwgcHJvdmVuIG90aGVyd2lzZS4KPiA+ICsJICoKPiA+ ICsJICogRklYTUUgc2hvdWxkIHJlYWxseSBjaGVjayBhbGwgZG93bnN0cmVhbSBwb3J0cy4uLgo+ ID4gKwkgKi8KPiA+ICsJcmV0dXJuIGludGVsX2RwLT5kcGNkW0RQX0RQQ0RfUkVWXSA9PSAweDEx ICYmCj4gPiArCQlpbnRlbF9kcC0+ZHBjZFtEUF9ET1dOU1RSRUFNUE9SVF9QUkVTRU5UXSAmIERQ X0RXTl9TVFJNX1BPUlRfUFJFU0VOVCAmJgo+ID4gKwkJaW50ZWxfZHAtPmRvd25zdHJlYW1fcG9y dHNbMF0gJiBEUF9EU19QT1JUX0hQRDsKPiA+ICt9Cj4gPiArCj4gPiAgLyogSWYgdGhlIHNpbmsg c3VwcG9ydHMgaXQsIHRyeSB0byBzZXQgdGhlIHBvd2VyIHN0YXRlIGFwcHJvcHJpYXRlbHkgKi8K PiA+ICB2b2lkIGludGVsX2RwX3NpbmtfZHBtcyhzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwLCBp bnQgbW9kZSkKPiA+ICB7Cj4gPiBAQCAtMjUxNSw2ICsyNTMwLDkgQEAgdm9pZCBpbnRlbF9kcF9z aW5rX2RwbXMoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCwgaW50IG1vZGUpCj4gPiAgCQlyZXR1 cm47Cj4gPiAgCj4gPiAgCWlmIChtb2RlICE9IERSTV9NT0RFX0RQTVNfT04pIHsKPiA+ICsJCWlm IChkb3duc3RyZWFtX2hwZF9uZWVkc19kMChpbnRlbF9kcCkpCj4gPiArCQkJcmV0dXJuOwo+ID4g Kwo+ID4gIAkJcmV0ID0gZHJtX2RwX2RwY2Rfd3JpdGViKCZpbnRlbF9kcC0+YXV4LCBEUF9TRVRf UE9XRVIsCj4gPiAgCQkJCQkgRFBfU0VUX1BPV0VSX0QzKTsKPiA+ICAJfSBlbHNlIHsKPiAKPiAt LSAKPiBKYW5pIE5pa3VsYSwgSW50ZWwgT3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKCi0t IApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwgT1RDCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2ludGVsLWdmeAo=