From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sanchez, AdolfoX" Subject: force DP lane count on Broadwell platform Date: Wed, 18 May 2016 00:08:47 +0000 Message-ID: <56B36C37A8AFDD43BD486A5FC41A6D991E228425@CRSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0468743247==" Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id A9C6A6E7CA for ; Wed, 18 May 2016 00:08:51 +0000 (UTC) Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org --===============0468743247== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_56B36C37A8AFDD43BD486A5FC41A6D991E228425CRSMSX101amrcor_" --_000_56B36C37A8AFDD43BD486A5FC41A6D991E228425CRSMSX101amrcor_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello What PRM registers should be modified to force the source lanes to report 2= lanes maximum? Is it enough to modify the registers DP_TP_CTL and DDI_BUF_CTL, or should a= ny other register be modified? Best Regards, Adolfo Sanchez. --_000_56B36C37A8AFDD43BD486A5FC41A6D991E228425CRSMSX101amrcor_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hello

 

What PRM registers should be modified to force the s= ource lanes to report 2 lanes maximum?

Is it enough to modify the registers DP_TP_CTL and D= DI_BUF_CTL, or should any other register be modified?

 

Best Regards,

Adolfo Sanchez.

--_000_56B36C37A8AFDD43BD486A5FC41A6D991E228425CRSMSX101amrcor_-- --===============0468743247== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== --===============0468743247==-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: force DP lane count on Broadwell platform Date: Wed, 18 May 2016 09:37:54 +0300 Message-ID: <87a8jnrhvh.fsf@intel.com> References: <56B36C37A8AFDD43BD486A5FC41A6D991E228425@CRSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 1F5236E7EE for ; Wed, 18 May 2016 06:37:58 +0000 (UTC) In-Reply-To: <56B36C37A8AFDD43BD486A5FC41A6D991E228425@CRSMSX101.amr.corp.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Sanchez, AdolfoX" , "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCAxOCBNYXkgMjAxNiwgIlNhbmNoZXosIEFkb2xmb1giIDxhZG9sZm94LnNhbmNoZXpA aW50ZWwuY29tPiB3cm90ZToKPiBXaGF0IFBSTSByZWdpc3RlcnMgc2hvdWxkIGJlIG1vZGlmaWVk IHRvIGZvcmNlIHRoZSBzb3VyY2UgbGFuZXMgdG8KPiByZXBvcnQgMiBsYW5lcyBtYXhpbXVtPyAg SXMgaXQgZW5vdWdoIHRvIG1vZGlmeSB0aGUgcmVnaXN0ZXJzCj4gRFBfVFBfQ1RMIGFuZCBERElf QlVGX0NUTCwgb3Igc2hvdWxkIGFueSBvdGhlciByZWdpc3RlciBiZSBtb2RpZmllZD8KCllvdSBz aG91bGQgcHJvYmFibHkgbG9vayBhdCBpbnRlbF9kZGlfaW5pdCgpIGluIGludGVsX2RkaS5jLCBh bmQgc2V0CmludGVsX2RpZ19wb3J0LT5tYXhfbGFuZXMgdG8gMi4gVGhlbiBpdCBzaG91bGQgbGlt aXQgdGhlIHNvdXJjZSB0byB0d28KbGFuZXMgd2hlcmV2ZXIgaXQncyBuZWVkZWQuCgpPZiBjb3Vy c2UsIEkgc2hvdWxkIGFzayB5b3Ugd2h5IHlvdSBuZWVkIHRoaXM7IG1heWJlIHlvdSBzaG91bGQg YmUKYXNraW5nIGEgZGlmZmVyZW50IHF1ZXN0aW9uLiA7KQoKQlIsCkphbmkuCgoKCi0tIApKYW5p IE5pa3VsYSwgSW50ZWwgT3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlz dApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0 b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Sanchez, AdolfoX" Subject: Re: force DP lane count on Broadwell platform Date: Wed, 18 May 2016 19:21:36 +0000 Message-ID: <56B36C37A8AFDD43BD486A5FC41A6D991E228CD0@CRSMSX101.amr.corp.intel.com> References: <56B36C37A8AFDD43BD486A5FC41A6D991E228425@CRSMSX101.amr.corp.intel.com> <87a8jnrhvh.fsf@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 ESMTP id A9C516E8DD for ; Wed, 18 May 2016 19:21:38 +0000 (UTC) In-Reply-To: <87a8jnrhvh.fsf@intel.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jani Nikula , "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org VGhhbmtzIEphbmkKCkEgY3VzdG9tZXIgb2YgbWluZSBkZWNpZGVkIHRvIHdvcmsgd2l0aCAgYSBt b2RpZmllZCBEUCBwb3J0IHdpdGggb25seSB0d28gbGFuZXMgYW5kIGlzIGZhY2luZyBpc3N1ZXMu CkkgZ3Vlc3MgbW9kaWZ5aW5nIHRoZSBzdWdnZXN0ZWQgdmFsdWVzIG1pZ2h0IGJlIHVzZWZ1bCBh dCBPLlMgbGV2ZSwgaG93ZXZlciBJIHdhcyB3b25kZXJpbmcgaWYgbW9kaWZ5aW50IHRoZSByZWdp c3RlciB0aGF0IEkgbWVudGlvbmVkIGVhcmxpZXIgaW4gdGhlIFZCSU9TIHdvdWxkIGFjY29tcGxp c2ggdGhlIHNhbWUgZm9yIHRoZSBwcmUtT1Mgc3RhZ2UuCgpCZXN0IFJlZ2FyZHMsCkFkb2xmbyBT YW5jaGV6CgotLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQpGcm9tOiBKYW5pIE5pa3VsYSBbbWFp bHRvOmphbmkubmlrdWxhQGxpbnV4LmludGVsLmNvbV0gClNlbnQ6IFdlZG5lc2RheSwgTWF5IDE4 LCAyMDE2IDEyOjM4IEFNClRvOiBTYW5jaGV6LCBBZG9sZm9YIDxhZG9sZm94LnNhbmNoZXpAaW50 ZWwuY29tPjsgaW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpTdWJqZWN0OiBSZTogW0lu dGVsLWdmeF0gZm9yY2UgRFAgbGFuZSBjb3VudCBvbiBCcm9hZHdlbGwgcGxhdGZvcm0KCk9uIFdl ZCwgMTggTWF5IDIwMTYsICJTYW5jaGV6LCBBZG9sZm9YIiA8YWRvbGZveC5zYW5jaGV6QGludGVs LmNvbT4gd3JvdGU6Cj4gV2hhdCBQUk0gcmVnaXN0ZXJzIHNob3VsZCBiZSBtb2RpZmllZCB0byBm b3JjZSB0aGUgc291cmNlIGxhbmVzIHRvIAo+IHJlcG9ydCAyIGxhbmVzIG1heGltdW0/ICBJcyBp dCBlbm91Z2ggdG8gbW9kaWZ5IHRoZSByZWdpc3RlcnMgCj4gRFBfVFBfQ1RMIGFuZCBERElfQlVG X0NUTCwgb3Igc2hvdWxkIGFueSBvdGhlciByZWdpc3RlciBiZSBtb2RpZmllZD8KCllvdSBzaG91 bGQgcHJvYmFibHkgbG9vayBhdCBpbnRlbF9kZGlfaW5pdCgpIGluIGludGVsX2RkaS5jLCBhbmQg c2V0IGludGVsX2RpZ19wb3J0LT5tYXhfbGFuZXMgdG8gMi4gVGhlbiBpdCBzaG91bGQgbGltaXQg dGhlIHNvdXJjZSB0byB0d28gbGFuZXMgd2hlcmV2ZXIgaXQncyBuZWVkZWQuCgpPZiBjb3Vyc2Us IEkgc2hvdWxkIGFzayB5b3Ugd2h5IHlvdSBuZWVkIHRoaXM7IG1heWJlIHlvdSBzaG91bGQgYmUg YXNraW5nIGEgZGlmZmVyZW50IHF1ZXN0aW9uLiA7KQoKQlIsCkphbmkuCgoKCi0tCkphbmkgTmlr dWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0Cklu dGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: force DP lane count on Broadwell platform Date: Thu, 19 May 2016 09:31:01 +0300 Message-ID: <871t4yftju.fsf@intel.com> References: <56B36C37A8AFDD43BD486A5FC41A6D991E228425@CRSMSX101.amr.corp.intel.com> <87a8jnrhvh.fsf@intel.com> <56B36C37A8AFDD43BD486A5FC41A6D991E228CD0@CRSMSX101.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; 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