From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/i915/dp: reduce link M/N parameters Date: Tue, 28 Mar 2017 18:27:13 +0300 Message-ID: <8737dx7772.fsf@intel.com> References: <1490614405-23337-1-git-send-email-jani.nikula@intel.com> <20170327130123.kbjjdiwohegj6mpa@phenom.ffwll.local> <87r31i922x.fsf@intel.com> <0e7a6f52-979b-eb35-140c-009bb9e9ada5@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id BC96889BC2 for ; Tue, 28 Mar 2017 15:27:16 +0000 (UTC) In-Reply-To: <0e7a6f52-979b-eb35-140c-009bb9e9ada5@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Clint Taylor , Daniel Vetter Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, Dhinakaran Pandiyan List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCAyNyBNYXIgMjAxNywgQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVs LmNvbT4gd3JvdGU6Cj4gT24gMDMvMjcvMjAxNyAwODoyMiBBTSwgSmFuaSBOaWt1bGEgd3JvdGU6 Cj4+IE9uIE1vbiwgMjcgTWFyIDIwMTcsIERhbmllbCBWZXR0ZXIgPGRhbmllbEBmZndsbC5jaD4g d3JvdGU6Cj4+PiBPbiBNb24sIE1hciAyNywgMjAxNyBhdCAwMjozMzoyNVBNICswMzAwLCBKYW5p IE5pa3VsYSB3cm90ZToKPj4+PiBTZXZlcmFsIG1ham9yIHZlbmRvciBVU0ItQy0+SERNSSBjb252 ZXJ0ZXJzLCBpbiBwYXJ0aWN1bGFyIHRoZSBEQTIwMCwKPj4+PiBmYWlsIHRvIHJlY292ZXIgYSA1 LjQgR0h6IDEgbGFuZSBzaWduYWwgaWYgdGhlIGxpbmsgTiBpcyBncmVhdGVyIHRoYW4KPj4+PiAw eDgwMDAwLgo+Pj4+Cj4+Pj4gVGhlIGxpbmsgTSBhbmQgTiBkZXBlbmQgb24gdGhlIHBpeGVsIGNs b2NrIGFuZCBsaW5rIGNsb2NrIHJhdGlvLiBXaXRoCj4+Pj4gY3VycmVudCBjb2RlIGxpbmsgTiBl eGNlZWRzIDB4ODAwMDAgb25seSB3aGVuIGxpbmsgY2xvY2sgPj0gNTQwMDAwCj4+Pj4ga0h6LiBF eGNlcHQgZm9yIHRoZSBlRFAgaW50ZXJtZWRpYXRlIGxpbmsgY2xvY2tzLCBhdCBsZWFzdCB0aGUg Zm91cgo+Pj4+IGxlYXN0IHNpZ25pZmljYW50IGJpdHMgYXJlIGFsd2F5cyB6ZXJvLiBKdXN0IG9u ZSBiaXQgc2hpZnQgcmlnaHQgd291bGQKPj4+PiBiZSBlbm91Z2ggdG8gYnJpbmcgZXZlbiB0aGUg RFAgMS40IDgxMDAwMCBrSHogbGluayBjbG9jayB1bmRlciAweDgwMDAwCj4+Pj4gbGluayBOLiBU aGUgcGl4ZWwgY2xvY2sgZm9yIG1vZGVzIHRoYXQgcmVxdWlyZSBhIGxpbmsgY2xvY2sgPj0gNTQw MDAwCj4+Pj4ga0h6IHdvdWxkIGFsc28gaGF2ZSBzZXZlcmFsIGxlYXN0IHNpZ25pZmljYW50IGJp dHMgemVyby4gVW5sZXNzIHRoZSB1c2VyCj4+Pj4gcHJvdmlkZXMgYSBtb2RlIHdpdGggYW4gb2Rk IHBpeGVsIGNsb2NrIHZhbHVlLCB3ZSBjYW4gcmVkdWNlIHRoZSBudW1iZXJzCj4+Pj4gdG8gcmVh Y2ggdGhlIGdvYWwsIHdpdGggbm8gbG9zcyBpbiBwcmVjaXNpb24uCj4+Pj4KPj4+PiBUaGUgRFAg c3BlYyBldmVuIG1lbnRpb25zIHNvdXJjZXMgbWFraW5nIGNob2ljZXMgdGhhdCAiYWxsb3cgZm9y IHN0YXRpYwo+Pj4+IGFuZCByZWxhdGl2ZWx5IHNtYWxsIE12aWQgYW5kIE52aWQgdmFsdWVzIiwg dGh1cyByZWR1Y2luZyB0aGUgbGluayBNL04KPj4+PiByZWdhcmRsZXNzIG9mIHRoZSBzaW5rIGlu IHF1ZXN0aW9uIHNlZW1zIGp1c3RpZmllZC4KPj4+Pgo+Pj4+IEV2ZXJ5dGhpbmcgaGVyZSBpcyBi YXNlZCBvbiB0aGUgd29yayBhbmQgaW5mb3JtYXRpb24gZ2F0aGVyZWQgYnkgQ2xpbnQKPj4+PiBU YXlsb3IgPGNsaW50b24uYS50YXlsb3JAaW50ZWwuY29tPi4gVGhpcyBpcyBqdXN0IGFuIGl0ZXJh dGlvbiB0byByZWR1Y2UKPj4+PiB0aGUgcGFyYW1ldGVycyByZWdhcmRsZXNzIG9mIGxhbmUgY291 bnQsIGxpbmsgcmF0ZSwgb3Igc2luay4KPj4+Pgo+Pj4+IFJlZmVyZW5jZTogaHR0cDovL3BhdGNo d29yay5mcmVlZGVza3RvcC5vcmcvcGF0Y2gvbXNnaWQvMTQ5MDIyNTI1Ni0xMTY2Ny0xLWdpdC1z ZW5kLWVtYWlsLWNsaW50b24uYS50YXlsb3JAaW50ZWwuY29tCj4+Pj4gQnVnemlsbGE6IGh0dHBz Oi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTkzNTc4Cj4+Pj4gVGVzdGVk LWJ5OiBNYWRzIDxtYWRzQGFiMy5ubz4KPj4+PiBUZXN0ZWQtYnk6IFBKIDxmb29iYXJAcGptb2Rv cy5uZXQ+Cj4+Pj4gVGVzdGVkLWJ5OiBGcmFuw6dvaXMgR3VlcnJheiA8a3Vicmlja0BmZ3Y2Lm5l dD4KPj4+PiBUZXN0ZWQtYnk6IExldiBQb3BvdiA8bGVvQG5hYmFtLm5ldD4KPj4+PiBUZXN0ZWQt Ynk6IElnb3IgS3JpdmVua28gPGlnb3Iucy5rcml2ZW5rb0BnbWFpbC5jb20+Cj4+Pj4gQ2M6IENs aW50IFRheWxvciA8Y2xpbnRvbi5hLnRheWxvckBpbnRlbC5jb20+Cj4+Pj4gQ2M6IEFudXNoYSBT cml2YXRzYSA8YW51c2hhLnNyaXZhdHNhQGludGVsLmNvbT4KPj4+PiBDYzogVmlsbGUgU3lyasOk bMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPj4+PiBDYzogRGFuaWVsIFZldHRl ciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KPj4+PiBTaWduZWQtb2ZmLWJ5OiBKYW5pIE5pa3Vs YSA8amFuaS5uaWt1bGFAaW50ZWwuY29tPgo+Pj4+Cj4+Pj4gLS0tCj4+Pj4KPj4+PiBUaGlzIGlz IGNjOiBzdGFibGUgbWF0ZXJpYWwsIGJ1dCBkdWUgdG8gdGhlIHNsaWdodCByaXNrIG9mIHJlZ3Jl c3Npb25zCj4+Pj4gKHRoZXJlJ3MgYWx3YXlzIHRoZSByaXNrLCBob3dldmVyIHNtYWxsLCB3aGVu IHlvdSBjaGFuZ2UgcGFyYW1ldGVycyB0aGF0Cj4+Pj4gYWZmZWN0IGFsbCBzaW5rcykgSSdkIHBy ZWZlciBsZXR0aW5nIHRoaXMgc2ltbWVyIGZvciBhIHdoaWxlLCBhbmQgYXNraW5nCj4+Pj4gZm9y IGFuIGV4cGxpY2l0IHN0YWJsZSBiYWNrcG9ydCBhZnRlcndhcmRzLgo+Pj4+IC0tLQo+Pj4+ICBk cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kaXNwbGF5LmMgfCA5ICsrKysrKysrKwo+Pj4+ICAx IGZpbGUgY2hhbmdlZCwgOSBpbnNlcnRpb25zKCspCj4+Pj4KPj4+PiBkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfZGlzcGxheS5jCj4+Pj4gaW5kZXggOWEyOGE4OTE3ZGMxLi41NWJiNmNmMmEyZDMgMTAw NjQ0Cj4+Pj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4+Pj4g KysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4+Pj4gQEAgLTYzMzcs NiArNjMzNywxNSBAQCBpbnRlbF9yZWR1Y2VfbV9uX3JhdGlvKHVpbnQzMl90ICpudW0sIHVpbnQz Ml90ICpkZW4pCj4+Pj4gIHN0YXRpYyB2b2lkIGNvbXB1dGVfbV9uKHVuc2lnbmVkIGludCBtLCB1 bnNpZ25lZCBpbnQgbiwKPj4+PiAgCQkJdWludDMyX3QgKnJldF9tLCB1aW50MzJfdCAqcmV0X24p Cj4+Pj4gIHsKPj4+PiArCS8qCj4+Pj4gKwkgKiBSZWR1Y2UgTS9OIGFzIG11Y2ggYXMgcG9zc2li bGUgd2l0aG91dCBsb3NzIGluIHByZWNpc2lvbi4gU2V2ZXJhbCBEUAo+Pj4+ICsJICogZG9uZ2xl cyBpbiBwYXJ0aWN1bGFyIHNlZW0gdG8gYmUgZnVzc3kgYWJvdXQgdG9vIGxhcmdlIE0vTiB2YWx1 ZXMuCj4+Pj4gKwkgKi8KPj4+PiArCXdoaWxlICgobSAmIDEpID09IDAgJiYgKG4gJiAxKSA9PSAw KSB7Cj4+Pj4gKwkJbSA+Pj0gMTsKPj4+PiArCQluID4+PSAxOwo+Pj4+ICsJfQo+Pj4+ICsKPj4+ PiAgCSpyZXRfbiA9IG1pbl90KHVuc2lnbmVkIGludCwgcm91bmR1cF9wb3dfb2ZfdHdvKG4pLCBE QVRBX0xJTktfTl9NQVgpOwo+Pj4+ICAJKnJldF9tID0gZGl2X3U2NCgodWludDY0X3QpIG0gKiAq cmV0X24sIG4pOwo+Pj4+ICAJaW50ZWxfcmVkdWNlX21fbl9yYXRpbyhyZXRfbSwgcmV0X24pOwo+ Pj4KPj4+IENhbid0IHdlIHB1c2ggdGhpcyBpbnRvIHJlZHVjZV9tX25fcmF0aW8/Cj4+Cj4+IEFm dGVyICpyZXRfbSA9IGRpdl91NjQoKHVpbnQ2NF90KSBtICogKnJldF9uLCBuKTsgaXQncyBub3Qg Z3VhcmFudGVlZAo+PiB0aGF0IHdlIGNvdWxkIHNoaWZ0IGF0IGFsbC4gVGhlIHJlZHVjdGlvbiBu ZWVkcyB0byBiZSBkb25lIG9uIHRoZQo+PiBvcmlnaW5hbCBtLCBuIGJlaW5nIHBhc3NlZCBpbi4K Pj4KPgo+IFRlc3RlZC1ieTogQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVsLmNv bT4KPiBSZXZpZXdlZC1ieTogQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVsLmNv bT4KClB1c2hlZCB0byBkcm0taW50ZWwtbmV4dC1xdWV1ZWQsIHRoYW5rcyBDbGludCBmb3IgeW91 ciB3b3JrIGluIGdldHRpbmcKYXQgdGhlIHJvb3RzIG9mIHRoZSBwcm9ibGVtLCBhbmQgZXZlcnlv bmUgZm9yIGFsbCB0aGUgcmV2aWV3IGFuZAp0ZXN0aW5nIQoKQlIsCkphbmkuCgoKPgo+PiBCUiwK Pj4gSmFuaS4KPj4KPj4KPgoKLS0gCkphbmkgTmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNo bm9sb2d5IENlbnRlcgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1n ZngK