From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/i915/icl: remove port A/E lane sharing limitation. Date: Mon, 05 Feb 2018 12:03:24 +0200 Message-ID: <87h8qvbvo3.fsf@intel.com> References: <20180202122141.22746-1-mahesh1.kumar@intel.com> <874lmzim80.fsf@intel.com> <67188307-e11e-d2c5-0375-aac0d1408ad9@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 10CEA6E26F for ; Mon, 5 Feb 2018 10:03:30 +0000 (UTC) In-Reply-To: <67188307-e11e-d2c5-0375-aac0d1408ad9@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Kumar, Mahesh" , intel-gfx@lists.freedesktop.org Cc: dinakaran.pandiyan@intel.com List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCAwNSBGZWIgMjAxOCwgIkt1bWFyLCBNYWhlc2giIDxtYWhlc2gxLmt1bWFyQGludGVs LmNvbT4gd3JvdGU6Cj4gSGksCj4KPgo+IE9uIDIvMi8yMDE4IDY6MjYgUE0sIEphbmkgTmlrdWxh IHdyb3RlOgo+PiBPbiBGcmksIDAyIEZlYiAyMDE4LCBNYWhlc2ggS3VtYXIgPG1haGVzaDEua3Vt YXJAaW50ZWwuY29tPiB3cm90ZToKPj4+IFBsYXRmb3JtcyBiZWZvcmUgR2VuMTEgd2VyZSBzaGFy aW5nIGxhbmVzIGJldHdlZW4gcG9ydC1BICYgcG9ydC1FLgo+Pj4gVGhpcyBsaW1pdGF0aW9uIGlz IG5vIG1vcmUgdGhlcmUuCj4+Pgo+Pj4gQ2hhbmdlcyBzaW5jZSBWMToKPj4+ICAgLSBvcHRpbWl6 ZSB0aGUgY29kZSAoU2hhc2hhbmsvSmFuaSkKPj4+ICAgLSBjcmVhdGUgaGVscGVyIGZ1bmN0aW9u IHRvIGdldCBtYXggbGFuZXMgKHZpbGxlKQo+Pj4gQ2hhbmdlcyBzaW5jZSBWMjoKPj4+ICAgLSBJ bmNsdWRlIEJJT1MgZmFpbCBmaXgtdXAgaW4gc2FtZSBoZWxwZXIgZnVuY3Rpb24gKHZpbGxlKQo+ Pj4KPj4+IFNpZ25lZC1vZmYtYnk6IE1haGVzaCBLdW1hciA8bWFoZXNoMS5rdW1hckBpbnRlbC5j b20+Cj4+PiBSZXZpZXdlZC1ieTogRGhpbmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5k aXlhbkBpbnRlbC5jb20+Cj4+PiAtLS0KPj4+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf ZGRpLmMgfCA3MSArKysrKysrKysrKysrKysrKysrLS0tLS0tLS0tLS0tLS0tLS0tLS0tCj4+PiAg IDEgZmlsZSBjaGFuZ2VkLCAzMyBpbnNlcnRpb25zKCspLCAzOCBkZWxldGlvbnMoLSkKPj4+Cj4+ PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGRpLmMgYi9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9kZGkuYwo+Pj4gaW5kZXggY2ZjZDljYjM3ZDVkLi5lZTliYTc4 ZDE5YzggMTAwNjQ0Cj4+PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kZGkuYwo+ Pj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGRpLmMKPj4+IEBAIC0yODQyLDM5 ICsyODQyLDQ0IEBAIHN0YXRpYyBib29sIGludGVsX2RkaV9hX2ZvcmNlXzRfbGFuZXMoc3RydWN0 IGludGVsX2RpZ2l0YWxfcG9ydCAqZHBvcnQpCj4+PiAgIAlyZXR1cm4gZmFsc2U7Cj4+PiAgIH0K Pj4+ICAgCj4+PiArc3RhdGljIGludAo+Pj4gK2ludGVsX2RkaV9tYXhfbGFuZXMoc3RydWN0IGRy bV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LAo+Pj4gKwkJICAgIHN0cnVjdCBpbnRlbF9kaWdpdGFs X3BvcnQgKmludGVsX2RpZ19wb3J0KQo+Pj4gK3sKPj4gUGxlYXNlIGRpdGNoIHRoZSBkZXZfcHJp diBwYXJhbWV0ZXIgYW5kIGFkZDoKPj4KPj4gCXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZf cHJpdiA9IHRvX2k5MTUoZHBvcnQtPmJhc2UuYmFzZS5kZXYpOwo+IG9rLCBzdXJlLgo+Pgo+Pj4g KwllbnVtIHBvcnQgcG9ydCA9IGludGVsX2RpZ19wb3J0LT5iYXNlLnBvcnQ7Cj4+PiArCWludCBt YXhfbGFuZXMgPSA0Owo+PiBVbm5lY2Vzc2FyeSBpbml0aWFsaXphdGlvbi4KPiBmb3IgcG9ydHMg b3RoZXIgdGhhbiBQT1JUX0EvRSB3aWxsIGhhdmUgbWF4X2xhbmVzPTQgdGhhdCdzIHRoZSByZWFz b24gCj4gaW5pdGlhbGl6aW5nIGl0IGhlcmUsIHdpbGwgZml4IHRoZSB1c2FnZXMuCj4+Cj4+PiAr Cj4+PiArCWlmIChJTlRFTF9HRU4oZGV2X3ByaXYpID49IDExKSB7Cj4+PiArCQlyZXR1cm4gNDsK Pj4gUGxlYXNlIGVpdGhlciBzZXQgbWF4X2xhbmVzID0gNCBoZXJlLCBvciByZW1vdmUgdGhlIGVs c2UuIE9uIGVhcmx5Cj4+IHJldHVybnMsIHlvdSBkb24ndCBuZWVkIHRoZSBlbHNlLiBIYXZpbmcg Ym90aCBpcyBjb25mdXNpbmcuCj4geWVzLCBhZ3JlZSwgd2lsbCByZW1vdmUgdGhlIGVsc2UKPj4K Pj4+ICsJfSBlbHNlIGlmIChwb3J0ID09IFBPUlRfQSB8fCBwb3J0ID09IFBPUlRfRSkgewo+Pj4g KwkJaWYgKEk5MTVfUkVBRChERElfQlVGX0NUTChQT1JUX0EpKSAmIERESV9BXzRfTEFORVMpCj4+ PiArCQkJbWF4X2xhbmVzID0gcG9ydCA9PSBQT1JUX0EgPyA0IDogMDsKPj4+ICsJCWVsc2UKPj4+ ICsJCQkvKiBCb3RoIEEgYW5kIEUgc2hhcmUgMiBsYW5lcyAqLwo+Pj4gKwkJCW1heF9sYW5lcyA9 IDI7Cj4+PiArCX0KPj4+ICsKPj4+ICsJLyoKPj4+ICsJICogU29tZSBCSU9TIG1pZ2h0IGZhaWwg dG8gc2V0IHRoaXMgYml0IG9uIHBvcnQgQSBpZiBlRFAKPj4+ICsJICogd2Fzbid0IGxpdCB1cCBh dCBib290LiAgRm9yY2UgdGhpcyBiaXQgc2V0IHdoZW4gbmVlZGVkCj4+PiArCSAqIHNvIHdlIHVz ZSB0aGUgcHJvcGVyIGxhbmUgY291bnQgZm9yIG91ciBjYWxjdWxhdGlvbnMuCj4+PiArCSAqLwo+ Pj4gKwlpZiAoaW50ZWxfZGRpX2FfZm9yY2VfNF9sYW5lcyhpbnRlbF9kaWdfcG9ydCkpIHsKPj4+ ICsJCURSTV9ERUJVR19LTVMoIkZvcmNpbmcgRERJX0FfNF9MQU5FUyBmb3IgcG9ydCBBXG4iKTsK Pj4+ICsJCWludGVsX2RpZ19wb3J0LT5zYXZlZF9wb3J0X2JpdHMgfD0gRERJX0FfNF9MQU5FUzsK Pj4+ICsJCW1heF9sYW5lcyA9IDQ7Cj4+PiArCX0KPj4+ICsKPj4+ICsJcmV0dXJuIG1heF9sYW5l czsKPj4+ICt9Cj4+PiArCj4+PiAgIHZvaWQgaW50ZWxfZGRpX2luaXQoc3RydWN0IGRybV9pOTE1 X3ByaXZhdGUgKmRldl9wcml2LCBlbnVtIHBvcnQgcG9ydCkKPj4+ICAgewo+Pj4gICAJc3RydWN0 IGludGVsX2RpZ2l0YWxfcG9ydCAqaW50ZWxfZGlnX3BvcnQ7Cj4+PiAgIAlzdHJ1Y3QgaW50ZWxf ZW5jb2RlciAqaW50ZWxfZW5jb2RlcjsKPj4+ICAgCXN0cnVjdCBkcm1fZW5jb2RlciAqZW5jb2Rl cjsKPj4+ICAgCWJvb2wgaW5pdF9oZG1pLCBpbml0X2RwLCBpbml0X2xzcGNvbiA9IGZhbHNlOwo+ Pj4gLQlpbnQgbWF4X2xhbmVzOwo+Pj4gICAKPj4+IC0JaWYgKEk5MTVfUkVBRChERElfQlVGX0NU TChQT1JUX0EpKSAmIERESV9BXzRfTEFORVMpIHsKPj4+IC0JCXN3aXRjaCAocG9ydCkgewo+Pj4g LQkJY2FzZSBQT1JUX0E6Cj4+PiAtCQkJbWF4X2xhbmVzID0gNDsKPj4+IC0JCQlicmVhazsKPj4+ IC0JCWNhc2UgUE9SVF9FOgo+Pj4gLQkJCW1heF9sYW5lcyA9IDA7Cj4+PiAtCQkJYnJlYWs7Cj4+ PiAtCQlkZWZhdWx0Ogo+Pj4gLQkJCW1heF9sYW5lcyA9IDQ7Cj4+PiAtCQkJYnJlYWs7Cj4+PiAt CQl9Cj4+PiAtCX0gZWxzZSB7Cj4+PiAtCQlzd2l0Y2ggKHBvcnQpIHsKPj4+IC0JCWNhc2UgUE9S VF9BOgo+Pj4gLQkJCW1heF9sYW5lcyA9IDI7Cj4+PiAtCQkJYnJlYWs7Cj4+PiAtCQljYXNlIFBP UlRfRToKPj4+IC0JCQltYXhfbGFuZXMgPSAyOwo+Pj4gLQkJCWJyZWFrOwo+Pj4gLQkJZGVmYXVs dDoKPj4+IC0JCQltYXhfbGFuZXMgPSA0Owo+Pj4gLQkJCWJyZWFrOwo+Pj4gLQkJfQo+Pj4gLQl9 Cj4+PiAgIAo+Pj4gICAJaW5pdF9oZG1pID0gKGRldl9wcml2LT52YnQuZGRpX3BvcnRfaW5mb1tw b3J0XS5zdXBwb3J0c19kdmkgfHwKPj4+ICAgCQkgICAgIGRldl9wcml2LT52YnQuZGRpX3BvcnRf aW5mb1twb3J0XS5zdXBwb3J0c19oZG1pKTsKPj4+IEBAIC0yOTU0LDE5ICsyOTU5LDcgQEAgdm9p ZCBpbnRlbF9kZGlfaW5pdChzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsIGVudW0g cG9ydCBwb3J0KQo+Pj4gICAJCU1JU1NJTkdfQ0FTRShwb3J0KTsKPj4+ICAgCX0KPj4+ICAgCj4+ PiAtCS8qCj4+PiAtCSAqIFNvbWUgQklPUyBtaWdodCBmYWlsIHRvIHNldCB0aGlzIGJpdCBvbiBw b3J0IEEgaWYgZURQCj4+PiAtCSAqIHdhc24ndCBsaXQgdXAgYXQgYm9vdC4gIEZvcmNlIHRoaXMg Yml0IHNldCB3aGVuIG5lZWRlZAo+Pj4gLQkgKiBzbyB3ZSB1c2UgdGhlIHByb3BlciBsYW5lIGNv dW50IGZvciBvdXIgY2FsY3VsYXRpb25zLgo+Pj4gLQkgKi8KPj4+IC0JaWYgKGludGVsX2RkaV9h X2ZvcmNlXzRfbGFuZXMoaW50ZWxfZGlnX3BvcnQpKSB7Cj4+PiAtCQlEUk1fREVCVUdfS01TKCJG b3JjaW5nIERESV9BXzRfTEFORVMgZm9yIHBvcnQgQVxuIik7Cj4+PiAtCQlpbnRlbF9kaWdfcG9y dC0+c2F2ZWRfcG9ydF9iaXRzIHw9IERESV9BXzRfTEFORVM7Cj4+PiAtCQltYXhfbGFuZXMgPSA0 Owo+Pj4gLQl9Cj4+PiAtCj4+PiAgIAlpbnRlbF9kaWdfcG9ydC0+ZHAub3V0cHV0X3JlZyA9IElO VkFMSURfTU1JT19SRUc7Cj4+PiAtCWludGVsX2RpZ19wb3J0LT5tYXhfbGFuZXMgPSBtYXhfbGFu ZXM7Cj4+PiAgIAo+Pj4gICAJaW50ZWxfZW5jb2Rlci0+dHlwZSA9IElOVEVMX09VVFBVVF9EREk7 Cj4+PiAgIAlpbnRlbF9lbmNvZGVyLT5wb3dlcl9kb21haW4gPSBpbnRlbF9wb3J0X3RvX3Bvd2Vy X2RvbWFpbihwb3J0KTsKPj4+IEBAIC0yOTc0LDYgKzI5NjcsOCBAQCB2b2lkIGludGVsX2RkaV9p bml0KHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgZW51bSBwb3J0IHBvcnQpCj4+ PiAgIAlpbnRlbF9lbmNvZGVyLT5jcnRjX21hc2sgPSAoMSA8PCAwKSB8ICgxIDw8IDEpIHwgKDEg PDwgMik7Cj4+PiAgIAlpbnRlbF9lbmNvZGVyLT5jbG9uZWFibGUgPSAwOwo+Pj4gICAKPj4+ICsJ aW50ZWxfZGlnX3BvcnQtPm1heF9sYW5lcyA9IGludGVsX2RkaV9tYXhfbGFuZXMoZGV2X3ByaXYs Cj4+PiArCQkJCQkJCWludGVsX2RpZ19wb3J0KTsKPj4gUGxlYXNlIGtlZXAgdGhpcyBhdCB0aGUg b3JpZ2luYWwgbG9jYXRpb24gYWJvdmUuCj4gSSBtb3ZlZCB0aGlzIGhlcmUgYmVjYXVzZSBpbnRl bF9lbmNvZGVyLT5wb3J0IHdhcyBub3QgaW5pdGlhbGl6ZWQgaW4gCj4gb3JpZ2luYWwgbG9jYXRp b24sIHdpbGwgcGFzcyBwb3J0IGFsb25nIHdpdGggaW50ZWxfZGlnX3BvcnQgJiBtb3ZlIGl0IHRv IAo+IG9yaWdpbmFsIGxvY2F0aW9uLgoKUmlnaHQsIHNvIGFsdGVybmF0aXZlbHkgeW91IGNvdWxk IG1vdmUgYWxsIHRoZSBpbnRlbF9kaWdfcG9ydCBpbml0IHRvCnRoZSBzYW1lIHBsYWNlLgoKQlIs CkphbmkuCgo+IFRoYW5rcyBmb3IgcmV2aWV3Lgo+Cj4gLU1haGVzaAo+Pgo+PiBCUiwKPj4gSmFu aS4KPj4KPj4+ICAgCWludGVsX2luZm9mcmFtZV9pbml0KGludGVsX2RpZ19wb3J0KTsKPj4+ICAg Cj4+PiAgIAlpZiAoaW5pdF9kcCkgewo+CgotLSAKSmFuaSBOaWt1bGEsIEludGVsIE9wZW4gU291 cmNlIFRlY2hub2xvZ3kgQ2VudGVyCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVk ZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2ludGVsLWdmeAo=