From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 1/2] drm/i915/cnl: Allow 2 pixel per clock on Cannonlake. Date: Wed, 30 Aug 2017 21:59:49 +0300 Message-ID: <20170830185949.GK4914@intel.com> References: <20170817005441.17273-1-rodrigo.vivi@intel.com> <1504118116.30258.122.camel@dk-H97M-D3H> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7C8BF6E63D for ; Wed, 30 Aug 2017 18:59:54 +0000 (UTC) Content-Disposition: inline In-Reply-To: <1504118116.30258.122.camel@dk-H97M-D3H> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Pandiyan, Dhinakaran" Cc: "Nikula, Jani" , "intel-gfx@lists.freedesktop.org" , "Vivi, Rodrigo" List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBBdWcgMzAsIDIwMTcgYXQgMDY6MTQ6MDNQTSArMDAwMCwgUGFuZGl5YW4sIERoaW5h a2FyYW4gd3JvdGU6Cj4gCj4gT24gV2VkLCAyMDE3LTA4LTE2IGF0IDE3OjU0IC0wNzAwLCBSb2Ry aWdvIFZpdmkgd3JvdGU6Cj4gPiBUaGlzIGlzIGhlYXZpbHkgYmFzZWQgb24gYSBpbml0aWFsIHBh dGNoIHByb3ZpZGVkIGJ5IFZpbGxlCj4gPiBwbHVzIGFsbCBjaGFuZ2VzIHByb3ZpZGVkIGxhdGVy IGJ5IEFuZGVyLgo+ID4gCj4gCj4gVmlsbGUgYWJhbmRvbmVkIHRoaXMgY2hhbmdlIGxhc3QgdGlt ZSBzdGF0aW5nIC0gIkFzc3VtZSAxIHBpeGVsIHBlcgo+IGNsb2NrIGZvciB0aGUgcHVycG9zZXMg b2YgbWF4IHBpeGVsIHJhdGUgY2FsY3VsYXRpb24gdW50aWwgRERJIGNsb2NrCj4gdm9sdGFnZSBz Y2FsaW5nIGlzIGhhbmRsZWQiCj4gCj4gSWYgeW91IGNhbiBjb25maXJtIHRoYXQgY2hhbmdlIHdh cyBpbXBsZW1lbnRlZCwgdGhpcyBwYXRjaCBpcwo+IFJldmlld2VkLWJ5OiBEaGluYWthcmFuIFBh bmRpeWFuIDxkaGluYWthcmFuLnBhbmRpeWFuQGludGVsLmNvbT4KPiAKPiAKPiBBbHNvLCBJIHNl ZSB0aGF0IFZpbGxlJ3MgcGF0Y2ggdG8gY2hhbmdlIHRoZSBwaXhlbCByYXRlIGNoZWNrcyB0byB1 c2UKPiBjZGNsayBoYXMgbm90IGJlZW4gbWVyZ2VkCgpJIHRvdGFsbHkgZm9yZ290IGFib3V0IHRo YXQgb25lIFRCSC4gSSd2ZSBqdXN0IHJlcG9zdGVkIGZpcnN0IHBhdGNoIHRvCmdldCBhIGZyZXNo IENJIHJ1biBmb3IgaXQuCgpJIHRoaW5rIHRoaXMgQ05MIHRoaW5nIG1pZ2h0IGxvb2sgY2xlYW5l ciBpZiByZWRvbmUgb24gdG9wIG9mIG15IHN0dWZmLApidXQgaWYgcGVvcGxlIHdhbnQgdGhpcyBp biBBU0FQIEkgY2FuIHJlYmFzZSBteSBzdHVmZiBhcyB3ZWxsLgoKPiAKPiAKPiAKPiA+IEFzIEdl bWluaWxha2UsIENhbm5vbmxha2UgYWxzbyBzdXBwb3J0cyAyIHBpeGVscyBwZXIgY2xvY2suCj4g PiAKPiA+IERpZmZlcmVudCBmcm9tIEdlbWluaWxha2Ugd2UgYXJlIG5vdCBpbXBsZW1lbnRpbmcg dGhlIDk5JSBXYS4KPiA+IEJ1dCB3ZSBjYW4gcmV2aXNpdCB0aGF0IGRlY2lzaW9uIGxhdGVyIGlm IHdlIGZpbmQgb3V0Cj4gPiBhbnkgbGltaXRhdGlvbiBvbiBsYXRlciBDTkwgU0tVcy4KPiA+IAo+ ID4gQ2M6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4g PiBDYzogRGhpbmFrYXJhbiBQYW5kaXlhbiA8ZGhpbmFrYXJhbi5wYW5kaXlhbkBpbnRlbC5jb20+ Cj4gPiBDYzogSmFuaSBOaWt1bGEgPGphbmkubmlrdWxhQGludGVsLmNvbT4KPiA+IFNpZ25lZC1v ZmYtYnk6IFJvZHJpZ28gVml2aSA8cm9kcmlnby52aXZpQGludGVsLmNvbT4KPiA+IC0tLQo+ID4g IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2NkY2xrLmMgfCAxMiArKysrKystLS0tLS0KPiA+ ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jICAgIHwgIDMgKystCj4gPiAgMiBmaWxl cyBjaGFuZ2VkLCA4IGluc2VydGlvbnMoKyksIDcgZGVsZXRpb25zKC0pCj4gPiAKPiA+IGRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jZGNsay5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfY2RjbGsuYwo+ID4gaW5kZXggMTI0MWU1ODkxYjI5Li42YjFkODA1ZmI3 NTUgMTAwNjQ0Cj4gPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jZGNsay5jCj4g PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9jZGNsay5jCj4gPiBAQCAtMTQyMiw5 ICsxNDIyLDkgQEAgdm9pZCBieHRfdW5pbml0X2NkY2xrKHN0cnVjdCBkcm1faTkxNV9wcml2YXRl ICpkZXZfcHJpdikKPiA+ICAKPiA+ICBzdGF0aWMgaW50IGNubF9jYWxjX2NkY2xrKGludCBtYXhf cGl4Y2xrKQo+ID4gIHsKPiA+IC0JaWYgKG1heF9waXhjbGsgPiAzMzYwMDApCj4gPiArCWlmICht YXhfcGl4Y2xrID4gMiAqIDMzNjAwMCkKPiA+ICAJCXJldHVybiA1MjgwMDA7Cj4gPiAtCWVsc2Ug aWYgKG1heF9waXhjbGsgPiAxNjgwMDApCj4gPiArCWVsc2UgaWYgKG1heF9waXhjbGsgPiAyICog MTY4MDAwKQo+ID4gIAkJcmV0dXJuIDMzNjAwMDsKPiA+ICAJZWxzZQo+ID4gIAkJcmV0dXJuIDE2 ODAwMDsKPiA+IEBAIC0xNzUyLDkgKzE3NTIsNyBAQCBzdGF0aWMgaW50IGJkd19hZGp1c3RfbWlu X3BpcGVfcGl4ZWxfcmF0ZShzdHJ1Y3QgaW50ZWxfY3J0Y19zdGF0ZSAqY3J0Y19zdGF0ZSwKPiA+ ICAJICAgIGNydGNfc3RhdGUtPmhhc19hdWRpbyAmJgo+ID4gIAkgICAgY3J0Y19zdGF0ZS0+cG9y dF9jbG9jayA+PSA1NDAwMDAgJiYKPiA+ICAJICAgIGNydGNfc3RhdGUtPmxhbmVfY291bnQgPT0g NCkgewo+ID4gLQkJaWYgKElTX0NBTk5PTkxBS0UoZGV2X3ByaXYpKQo+ID4gLQkJCXBpeGVsX3Jh dGUgPSBtYXgoMzE2ODAwLCBwaXhlbF9yYXRlKTsKPiA+IC0JCWVsc2UgaWYgKElTX0dFTUlOSUxB S0UoZGV2X3ByaXYpKQo+ID4gKwkJaWYgKElTX0dFTUlOSUxBS0UoZGV2X3ByaXYpIHx8IElTX0NB Tk5PTkxBS0UoZGV2X3ByaXYpKQo+ID4gIAkJCXBpeGVsX3JhdGUgPSBtYXgoMiAqIDMxNjgwMCwg cGl4ZWxfcmF0ZSk7Cj4gPiAgCQllbHNlCj4gPiAgCQkJcGl4ZWxfcmF0ZSA9IG1heCg0MzIwMDAs IHBpeGVsX3JhdGUpOwo+ID4gQEAgLTE3NjYsNyArMTc2NCw3IEBAIHN0YXRpYyBpbnQgYmR3X2Fk anVzdF9taW5fcGlwZV9waXhlbF9yYXRlKHN0cnVjdCBpbnRlbF9jcnRjX3N0YXRlICpjcnRjX3N0 YXRlLAo+ID4gIAkgKiB0d28gcGl4ZWxzIHBlciBjbG9jay4KPiA+ICAJICovCj4gPiAgCWlmIChj cnRjX3N0YXRlLT5oYXNfYXVkaW8gJiYgSU5URUxfR0VOKGRldl9wcml2KSA+PSA5KSB7Cj4gPiAt CQlpZiAoSVNfR0VNSU5JTEFLRShkZXZfcHJpdikpCj4gPiArCQlpZiAoSVNfR0VNSU5JTEFLRShk ZXZfcHJpdikgfHwgSVNfQ0FOTk9OTEFLRShkZXZfcHJpdikpCj4gPiAgCQkJcGl4ZWxfcmF0ZSA9 IG1heCgyICogMiAqIDk2MDAwLCBwaXhlbF9yYXRlKTsKPiA+ICAJCWVsc2UKPiA+ICAJCQlwaXhl bF9yYXRlID0gbWF4KDIgKiA5NjAwMCwgcGl4ZWxfcmF0ZSk7Cj4gPiBAQCAtMTk5OSw2ICsxOTk3 LDggQEAgc3RhdGljIGludCBpbnRlbF9jb21wdXRlX21heF9kb3RjbGsoc3RydWN0IGRybV9pOTE1 X3ByaXZhdGUgKmRldl9wcml2KQo+ID4gIHsKPiA+ICAJaW50IG1heF9jZGNsa19mcmVxID0gZGV2 X3ByaXYtPm1heF9jZGNsa19mcmVxOwo+ID4gIAo+ID4gKwlpZiAoSVNfQ0FOTk9OTEFLRShkZXZf cHJpdikpCj4gPiArCQlyZXR1cm4gMiAqIG1heF9jZGNsa19mcmVxOwo+ID4gIAlpZiAoSVNfR0VN SU5JTEFLRShkZXZfcHJpdikpCj4gPiAgCQkvKgo+ID4gIAkJICogRklYTUU6IExpbWl0aW5nIHRv IDk5JSBhcyBhIHRlbXBvcmFyeSB3b3JrYXJvdW5kLiBTZWUKPiA+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf cG0uYwo+ID4gaW5kZXggZWQ2NjI5MzdlYzNjLi40MmY3NTNkZjMwY2IgMTAwNjQ0Cj4gPiAtLS0g YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jCj4gPiArKysgYi9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pbnRlbF9wbS5jCj4gPiBAQCAtMzk2OSw3ICszOTY5LDggQEAgaW50IHNrbF9jaGVj a19waXBlX21heF9waXhlbF9yYXRlKHN0cnVjdCBpbnRlbF9jcnRjICppbnRlbF9jcnRjLAo+ID4g IAljcnRjX2Nsb2NrID0gY3J0Y19zdGF0ZS0+YWRqdXN0ZWRfbW9kZS5jcnRjX2Nsb2NrOwo+ID4g IAlkb3RjbGsgPSB0b19pbnRlbF9hdG9taWNfc3RhdGUoc3RhdGUpLT5jZGNsay5sb2dpY2FsLmNk Y2xrOwo+ID4gIAo+ID4gLQlpZiAoSVNfR0VNSU5JTEFLRSh0b19pOTE1KGludGVsX2NydGMtPmJh c2UuZGV2KSkpCj4gPiArCWlmIChJU19HRU1JTklMQUtFKHRvX2k5MTUoaW50ZWxfY3J0Yy0+YmFz ZS5kZXYpKSB8fAo+ID4gKwkgICAgSVNfQ0FOTk9OTEFLRSh0b19pOTE1KGludGVsX2NydGMtPmJh c2UuZGV2KSkpCj4gPiAgCQlkb3RjbGsgKj0gMjsKPiA+ICAKPiA+ICAJcGlwZV9tYXhfcGl4ZWxf cmF0ZSA9IGRpdl9yb3VuZF91cF91MzJfZml4ZWQxNihkb3RjbGssIHBpcGVfZG93bnNjYWxlKTsK Ci0tIApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwgT1RDCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxp c3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2ludGVsLWdmeAo=