From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH v6] drm/i915: Enable scanline read based on frame timestamps Date: Mon, 25 Sep 2017 12:34:31 +0300 Message-ID: <8760c75dg8.fsf@nikula.org> References: <1506094890-19370-1-git-send-email-vidya.srinivas@intel.com> <1506096560-26310-1-git-send-email-vidya.srinivas@intel.com> 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 7D71C6E2A2 for ; Mon, 25 Sep 2017 09:35:17 +0000 (UTC) In-Reply-To: <1506096560-26310-1-git-send-email-vidya.srinivas@intel.com> 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 Cc: ville.syrjala@intel.com, Vidya Srinivas List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCAyMiBTZXAgMjAxNywgVmlkeWEgU3Jpbml2YXMgPHZpZHlhLnNyaW5pdmFzQGludGVs LmNvbT4gd3JvdGU6Cj4gRnJvbTogVW1hIFNoYW5rYXIgPHVtYS5zaGFua2FyQGludGVsLmNvbT4K Pgo+IEZvciBjZXJ0YWluIHBsYXRmb3JtcyBvbiBjZXJ0YWluIGVuY29kZXJzLCB0aW1pbmdzIGFy ZSBkcml2ZW4KPiBmcm9tIHBvcnQgaW5zdGVhZCBvZiBwaXBlLiBUaHVzLCB3ZSBjYW4ndCByZWx5 IG9uIHBpcGUgc2NhbmxpbmUKPiByZWdpc3RlcnMgdG8gZ2V0IHRoZSB0aW1pbmcgaW5mb3JtYXRp b24uIFNvbWUgY2FzZXMgc2NhbmxpbmUKPiByZWdpc3RlciByZWFkIHdpbGwgbm90IGJlIGZ1bmN0 aW9uYWwuCj4gVGhpcyBpcyBjYXVzaW5nIHZibGFuayBldmFzaW9uIGxvZ2ljIHRvIGZhaWwgc2lu Y2UgaXQgcmVsaWVzIG9uCj4gc2NhbmxpbmUsIGNhdXNpbmcgYXRvbWljIHVwZGF0ZSBmYWlsdXJl IHdhcm5pbmdzLgo+Cj4gVGhpcyBwYXRjaCB1c2VzIHBpcGUgZnJhbWVzdGFtcCBhbmQgY3VycmVu dCB0aW1lc3RhbXAgcmVnaXN0ZXJzCj4gdG8gY2FsY3VsYXRlIHNjYW5saW5lLiBUaGlzIGlzIGFu IGluZGlyZWN0IHdheSB0byBnZXQgdGhlIHNjYW5saW5lLgo+IEl0IGhlbHBzIHJlc29sdmUgYXRv bWljIHVwZGF0ZSBmYWlsdXJlIGZvciBnZW45IGRzaSBwbGF0Zm9ybXMuCj4KPiB2MjogQWRkcmVz c2VkIFZpbGxlIGFuZCBEYW5pZWwncyByZXZpZXcgY29tbWVudHMuIFVwZGF0ZWQgdGhlCj4gcmVn aXN0ZXIgTUFDUk9zLCBoYW5kbGVkIHJhY2UgY29uZGl0aW9uIGZvciByZWdpc3RlciByZWFkcywK PiBleHRyYWN0ZWQgdGltaW5ncyBmcm9tIHRoZSBod21vZGUuIFJlbW92ZWQgdGhlIGRlcGVuZGVu Y3kgb24KPiBjcnRjLT5jb25maWcgdG8gZ2V0IHRoZSBlbmNvZGVyIHR5cGUuCj4KPiB2MzogTWFk ZSBnZXQgc2NhbmxpbmUgZnVuY3Rpb24gZ2VuZXJpYwo+Cj4gdjQ6IEFkZHJlc3NlZCBWaWxsZSdz IHJldmlldyBjb21tZW50cy4gQWRkZWQgYSBmbGFnIHRvIGRlY2lkZSB0aW1lc3RhbXAKPiBiYXNl ZCBzY2FubGluZSByZXBvcnRpbmcuIENoYW5nZWQgNjRiaXQgdmFyaWFibGVzIHRvIHUzMgo+Cj4g djU6IEFkcmVzc2VkIFZpbGxlJ3MgcmV2aWV3IGNvbW1lbnRzLiBQdXQgdGhlIHNjYW5saW5lIGNv bXB1dGUgZnVuY3Rpb24KPiBhdCB0aGUgcGxhY2Ugb2YgY2FsbGVyLiBSZW1vdmVkIGh3bW9kZSBm bGFncyBmcm9tIHVhcGkgYW5kIHVzZWQgYSBsb2NhbAo+IGk5MTUgZGF0YSBzdHJ1Y3R1cmUgaW5z dGVhZC4KPgo+IHY2OiBVc2VkIHZibGFuayBod21vZGUgdG8gZ2V0IHRoZSB0aW1pbmdzLgo+Cj4g Q3JlZGl0cy10bzogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNv bT4KPiBTaWduZWQtb2ZmLWJ5OiBVbWEgU2hhbmthciA8dW1hLnNoYW5rYXJAaW50ZWwuY29tPgo+ IFNpZ25lZC1vZmYtYnk6IENoYW5kcmEgS29uZHVydSA8Y2hhbmRyYS5rb25kdXJ1QGludGVsLmNv bT4KPiBTaWduZWQtb2ZmLWJ5OiBWaWR5YSBTcmluaXZhcyA8dmlkeWEuc3Jpbml2YXNAaW50ZWwu Y29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jICB8ICAgNTMgKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysKPiAgZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9yZWcuaCAgfCAgICA5ICsrKysrKysKPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfZHJ2LmggfCAgICAyICsrCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RzaS5jIHwg ICAgNyArKysrKwo+ICA0IGZpbGVzIGNoYW5nZWQsIDcxIGluc2VydGlvbnMoKykKPgo+IGRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaTkxNV9pcnEuYwo+IGluZGV4IDkxYTJjNWQuLjRlNDRkNTkgMTAwNjQ0Cj4gLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2k5MTVfaXJxLmMKPiBAQCAtNzcyLDYgKzc3Miw1NiBAQCBzdGF0aWMgdTMyIGc0eF9nZXRf dmJsYW5rX2NvdW50ZXIoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdW5zaWduZWQgaW50IHBpcGUp Cj4gIAlyZXR1cm4gSTkxNV9SRUFEKFBJUEVfRlJNQ09VTlRfRzRYKHBpcGUpKTsKPiAgfQo+ICAK PiArLyoKPiArICogT24gY2VydGFpbiBlbmNvZGVycyBvbiBjZXJ0YWluIHBsYXRmb3JtcywgcGlw ZQo+ICsgKiBzY2FubGluZSByZWdpc3RlciB3aWxsIG5vdCB3b3JrIHRvIGdldCB0aGUgc2Nhbmxp bmUsCj4gKyAqIHNpbmNlIHRoZSB0aW1pbmdzIGFyZSBkcml2ZW4gZnJvbSB0aGUgUE9SVCBvciBp c3N1ZXMKPiArICogd2l0aCBzY2FubGluZSByZWdpc3RlciB1cGRhdGVzLgo+ICsgKiBUaGlzIGZ1 bmN0aW9uIHdpbGwgdXNlIEZyYW1lc3RhbXAgYW5kIGN1cnJlbnQKPiArICogdGltZXN0YW1wIHJl Z2lzdGVycyB0byBjYWxjdWxhdGUgdGhlIHNjYW5saW5lLgo+ICsgKi8KPiArdTMyIF9faW50ZWxf Z2V0X2NydGNfc2NhbmxpbmVfZnJvbV90aW1lc3RhbXAoc3RydWN0IGludGVsX2NydGMgKmNydGMp Cj4gK3sKPiArCXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IHRvX2k5MTUoY3J0 Yy0+YmFzZS5kZXYpOwo+ICsJc3RydWN0IGRybV92YmxhbmtfY3J0YyAqdmJsYW5rID0KPiArCQkm Y3J0Yy0+YmFzZS5kZXYtPnZibGFua1tkcm1fY3J0Y19pbmRleCgmY3J0Yy0+YmFzZSldOwo+ICsJ Y29uc3Qgc3RydWN0IGRybV9kaXNwbGF5X21vZGUgKm1vZGUgPSAmdmJsYW5rLT5od21vZGU7Cj4g Kwl1MzIgdmJsYW5rX3N0YXJ0ID0gbW9kZS0+Y3J0Y192Ymxhbmtfc3RhcnQ7Cj4gKwl1MzIgdnRv dGFsID0gbW9kZS0+Y3J0Y192dG90YWw7Cj4gKwl1MzIgaHRvdGFsID0gbW9kZS0+Y3J0Y19odG90 YWw7Cj4gKwl1MzIgY2xvY2sgPSBtb2RlLT5jcnRjX2Nsb2NrOwo+ICsJdTMyIHNjYW5saW5lLCBz Y2FuX3ByZXZfdGltZSwgc2Nhbl9jdXJyX3RpbWUsIHNjYW5fcG9zdF90aW1lOwo+ICsKPiArCS8q IFRvIGF2b2lkIHRoZSByYWNlIGNvbmRpdGlvbiB3aGVyZSB3ZSBtaWdodCBjcm9zcyBpbnRvIHRo ZQo+ICsJICogbmV4dCB2YmxhbmsganVzdCBiZXR3ZWVuIHRoZSBQSVBFX0ZSTVRNU1RNUCBhbmQg VElNRVNUQU1QX0NUUgo+ICsJICogcmVhZHMuIFdlIG1ha2Ugc3VyZSB3ZSByZWFkIFBJUEVfRlJN VE1TVE1QIGFuZCBUSU1FU1RBTVBfQ1RSCj4gKwkgKiBkdXJpbmcgdGhlIHNhbWUgZnJhbWUuCj4g KwkgKi8KPiArCWRvIHsKPiArCQkvKgo+ICsJCSAqIFRoaXMgZmllbGQgcHJvdmlkZXMgcmVhZCBi YWNrIG9mIHRoZSBkaXNwbGF5Cj4gKwkJICogcGlwZSBmcmFtZSB0aW1lIHN0YW1wLiBUaGUgdGlt ZSBzdGFtcCB2YWx1ZQo+ICsJCSAqIGlzIHNhbXBsZWQgYXQgZXZlcnkgc3RhcnQgb2YgdmVydGlj YWwgYmxhbmsuCj4gKwkJICovCj4gKwkJc2Nhbl9wcmV2X3RpbWUgPSBJOTE1X1JFQURfRlcoUElQ RV9GUk1UTVNUTVAoY3J0Yy0+cGlwZSkpOwo+ICsKPiArCQkvKgo+ICsJCSAqIFRoZSBUSU1FU1RB TVBfQ1RSIHJlZ2lzdGVyIGhhcyB0aGUgY3VycmVudAo+ICsJCSAqIHRpbWUgc3RhbXAgdmFsdWUu Cj4gKwkJICovCj4gKwkJc2Nhbl9jdXJyX3RpbWUgPSBJOTE1X1JFQURfRlcoSVZCX1RJTUVTVEFN UF9DVFIpOwo+ICsKPiArCQlzY2FuX3Bvc3RfdGltZSA9IEk5MTVfUkVBRF9GVyhQSVBFX0ZSTVRN U1RNUChjcnRjLT5waXBlKSk7Cj4gKwl9IHdoaWxlIChzY2FuX3Bvc3RfdGltZSAhPSBzY2FuX3By ZXZfdGltZSk7Cj4gKwo+ICsJc2NhbmxpbmUgPSBkaXZfdTY0KG11bF91MzJfdTMyKHNjYW5fY3Vy cl90aW1lIC0gc2Nhbl9wcmV2X3RpbWUsCj4gKwkJCQkgICAgICAgY2xvY2spLCAxMDAwICogaHRv dGFsKTsKPiArCXNjYW5saW5lID0gbWluKHNjYW5saW5lLCB2dG90YWwgLSAxKTsKPiArCXNjYW5s aW5lID0gKHNjYW5saW5lICsgdmJsYW5rX3N0YXJ0KSAlIHZ0b3RhbDsKPiArCj4gKwlyZXR1cm4g c2NhbmxpbmU7Cj4gK30KPiArCj4gIC8qIEk5MTVfUkVBRF9GVywgb25seSBmb3IgZmFzdCByZWFk cyBvZiBkaXNwbGF5IGJsb2NrLCBubyBuZWVkIGZvciBmb3JjZXdha2UgZXRjLiAqLwo+ICBzdGF0 aWMgaW50IF9faW50ZWxfZ2V0X2NydGNfc2NhbmxpbmUoc3RydWN0IGludGVsX2NydGMgKmNydGMp Cj4gIHsKPiBAQCAtNzg4LDYgKzgzOCw5IEBAIHN0YXRpYyBpbnQgX19pbnRlbF9nZXRfY3J0Y19z Y2FubGluZShzdHJ1Y3QgaW50ZWxfY3J0YyAqY3J0YykKPiAgCXZibGFuayA9ICZjcnRjLT5iYXNl LmRldi0+dmJsYW5rW2RybV9jcnRjX2luZGV4KCZjcnRjLT5iYXNlKV07Cj4gIAltb2RlID0gJnZi bGFuay0+aHdtb2RlOwo+ICAKPiArCWlmIChtb2RlLT5wcml2YXRlX2ZsYWdzICYgRFJNX01PREVf RkxBR19HRVRfU0NBTkxJTkVfRlJPTV9USU1FU1RBTVApCj4gKwkJcmV0dXJuIF9faW50ZWxfZ2V0 X2NydGNfc2NhbmxpbmVfZnJvbV90aW1lc3RhbXAoY3J0Yyk7Cj4gKwo+ICAJdnRvdGFsID0gbW9k ZS0+Y3J0Y192dG90YWw7Cj4gIAlpZiAobW9kZS0+ZmxhZ3MgJiBEUk1fTU9ERV9GTEFHX0lOVEVS TEFDRSkKPiAgCQl2dG90YWwgLz0gMjsKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9yZWcuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfcmVnLmgKPiBpbmRleCA5 ZjAzY2QwLi5mYmQwMGNjIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf cmVnLmgKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oCj4gQEAgLTg4MDQs NiArODgwNCwxNSBAQCBlbnVtIHNrbF9wb3dlcl9nYXRlIHsKPiAgI2RlZmluZSBNSVBJT19UWEVT Q19DTEtfRElWMgkJCV9NTUlPKDB4MTYwMDA4KQo+ICAjZGVmaW5lICBHTEtfVFhfRVNDX0NMS19E SVYyX01BU0sJCQkweDNGRgo+ICAKPiArLyogR2VuNCsgVGltZXN0YW1wIGFuZCBQaXBlIEZyYW1l IHRpbWUgc3RhbXAgcmVnaXN0ZXJzICovCj4gKyNkZWZpbmUgR0VONF9USU1FU1RBTVAJCV9NTUlP KDB4MjM1OCkKPiArI2RlZmluZSBJTEtfVElNRVNUQU1QX0hJCV9NTUlPKDB4NzAwNzApCj4gKyNk ZWZpbmUgSVZCX1RJTUVTVEFNUF9DVFIJX01NSU8oMHg0NDA3MCkKPiArCj4gKyNkZWZpbmUgX1BJ UEVfRlJNVE1TVE1QX0EJCTB4NzAwNDgKPiArI2RlZmluZSBQSVBFX0ZSTVRNU1RNUChwaXBlKQkJ XAo+ICsJCQlfTU1JT19QSVBFMihwaXBlLCBfUElQRV9GUk1UTVNUTVBfQSkKPiArCj4gIC8qIEJY VCBNSVBJIGNsb2NrIGNvbnRyb2xzICovCj4gICNkZWZpbmUgQlhUX01BWF9WQVJfT1VUUFVUX0tI WgkJCTM5NTAwCj4gIAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9k cnYuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oCj4gaW5kZXggMzA3ODA3Ni4u Y2E0NThmNSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+ ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oCj4gQEAgLTQ5NCw2ICs0OTQs OCBAQCBzdHJ1Y3QgaW50ZWxfY3J0Y19zY2FsZXJfc3RhdGUgewo+ICAKPiAgLyogZHJtX21vZGUt PnByaXZhdGVfZmxhZ3MgKi8KPiAgI2RlZmluZSBJOTE1X01PREVfRkxBR19JTkhFUklURUQgMQo+ ICsvKiBGbGFnIHRvIGdldCBzY2FubGluZSB1c2luZyBmcmFtZSB0aW1lIHN0YW1wcyAqLwo+ICsj ZGVmaW5lIERSTV9NT0RFX0ZMQUdfR0VUX1NDQU5MSU5FX0ZST01fVElNRVNUQU1QICgxPDwxKQoK QXMgVmlsbGUgd3JvdGUsCgoiIiIKcy9EUk1fL0k5MTVfLwoKV2l0aCB0aGF0IHRoaXMgaXMKUmV2 aWV3ZWQtYnk6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+ CiIiIgoKPiAgCj4gIHN0cnVjdCBpbnRlbF9waXBlX3dtIHsKPiAgCXN0cnVjdCBpbnRlbF93bV9s ZXZlbCB3bVs1XTsKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHNp LmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kc2kuYwo+IGluZGV4IDU3ODI1NGEuLmY5 MWNjYzcgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHNpLmMKPiAr KysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kc2kuYwo+IEBAIC0zMjgsNiArMzI4LDkg QEAgc3RhdGljIGJvb2wgaW50ZWxfZHNpX2NvbXB1dGVfY29uZmlnKHN0cnVjdCBpbnRlbF9lbmNv ZGVyICplbmNvZGVyLAo+ICAKPiAgCS8qIERTSSB1c2VzIHNob3J0IHBhY2tldHMgZm9yIHN5bmMg ZXZlbnRzLCBzbyBjbGVhciBtb2RlIGZsYWdzIGZvciBEU0kgKi8KPiAgCWFkanVzdGVkX21vZGUt PmZsYWdzID0gMDsKPiArCS8qIEVuYWJsZSBGcmFtZSB0aW1lIHN0YW1vIGJhc2VkIHNjYW5saW5l IHJlcG9ydGluZyAqLwo+ICsJYWRqdXN0ZWRfbW9kZS0+cHJpdmF0ZV9mbGFncyB8PQo+ICsJCQlE Uk1fTU9ERV9GTEFHX0dFVF9TQ0FOTElORV9GUk9NX1RJTUVTVEFNUDsKPiAgCj4gIAlpZiAoSVNf R0VOOV9MUChkZXZfcHJpdikpIHsKPiAgCQkvKiBEdWFsIGxpbmsgZ29lcyB0byBEU0kgdHJhbnNj b2RlciBBLiAqLwo+IEBAIC0xMTAyLDYgKzExMDUsMTAgQEAgc3RhdGljIHZvaWQgYnh0X2RzaV9n ZXRfcGlwZV9jb25maWcoc3RydWN0IGludGVsX2VuY29kZXIgKmVuY29kZXIsCj4gIAkJCQlwaXhl bF9mb3JtYXRfZnJvbV9yZWdpc3Rlcl9iaXRzKGZtdCkpOwo+ICAJYnBwID0gcGlwZV9jb25maWct PnBpcGVfYnBwOwo+ICAKPiArCS8qIEVuYWJsZSBGcmFtZSB0aW1lIHN0YW1vIGJhc2VkIHNjYW5s aW5lIHJlcG9ydGluZyAqLwo+ICsJYWRqdXN0ZWRfbW9kZS0+cHJpdmF0ZV9mbGFncyB8PQo+ICsJ CQlEUk1fTU9ERV9GTEFHX0dFVF9TQ0FOTElORV9GUk9NX1RJTUVTVEFNUDsKPiArCj4gIAkvKiBJ biB0ZXJtcyBvZiBwaXhlbHMgKi8KPiAgCWFkanVzdGVkX21vZGUtPmNydGNfaGRpc3BsYXkgPQo+ ICAJCQkJSTkxNV9SRUFEKEJYVF9NSVBJX1RSQU5TX0hBQ1RJVkUocG9ydCkpOwoKLS0gCkphbmkg TmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK