From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tobias Jakobi Subject: Re: [PATCH] exynos: drm: use monotonic timestamps Date: Fri, 3 Nov 2017 15:04:15 +0100 Message-ID: References: <20171102114415.1811842-1-arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from smtp.math.uni-bielefeld.de (smtp.math.uni-bielefeld.de [129.70.45.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3D9436EA80 for ; Fri, 3 Nov 2017 14:04:17 +0000 (UTC) In-Reply-To: <20171102114415.1811842-1-arnd@arndb.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Arnd Bergmann , Inki Dae , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , David Airlie Cc: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Kukjin Kim , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, Marek Szyprowski List-Id: dri-devel@lists.freedesktop.org SGVsbG8gQXJuZCwKCkkgZ3Vlc3MgeW91IGNvdWxkIGNvb3JkaW5hdGUgdGhlIElQUCBjaGFuZ2Vz IHdpdGggTWFyZWssIHdobyBpcyByZXdyaXRpbmcgdGhlCklQUCBzdWJzeXN0ZW0gYW55d2F5IChh ZGRlZCBNYXJlayB0byBDYykuCgpIZXJlIGlzIHRoZSBtb3N0IHJlY2VudCBJUFB2MiBzZXJpZXM6 Cmh0dHBzOi8vd3d3LnNwaW5pY3MubmV0L2xpc3RzL2xpbnV4LXNhbXN1bmctc29jL21zZzYxMDY2 Lmh0bWwKCkNvbmNlcm5pbmcgdGhlIEcyRCBjaGFuZ2VzLCBJIGRvbid0IHRoaW5rIGFueXRoaW5n IGluIHVzZXJzcGFjZSB1c2VzIHRoZQp0aW1lc3RhbXBzIChlLmcuIGZvciBzeW5jaHJvbmlzYXRp b24pLgoKV2l0aCBiZXN0IHdpc2hlcywKVG9iaWFzCgoKQXJuZCBCZXJnbWFubiB3cm90ZToKPiBU aGUgZXh5bm9zIERSTSBkcml2ZXIgdXNlcyByZWFsLXRpbWUgJ3N0cnVjdCB0aW1ldmFsJyB2YWx1 ZXMKPiBmb3IgZXhwb3J0aW5nIGl0cyB0aW1lc3RhbXBzIHRvIHVzZXIgc3BhY2UuIFRoaXMgaGFz IG11bHRpcGxlCj4gcHJvYmxlbXM6Cj4gCj4gMS4gc2lnbmVkIHNlY29uZHMgb3ZlcmZsb3cgaW4g eTIwMzgKPiAyLiB0aGUgJ3N0cnVjdCB0aW1ldmFsJyBkZWZpbml0aW9uIGlzIGRlcHJlY2F0ZWQg aW4gdGhlIGtlcm5lbAo+IDMuIHRpbWUgbWF5IGp1bXAgb3IgZ28gYmFja3dhcmRzIGFmdGVyIGEg J3NldHRpbWVvZmRheSgpJyBzeXNjYWxsCj4gNC4gb3RoZXIgRFJNIHRpbWVzdGFtcHMgYXJlIGlu IENMT0NLX01PTk9UT05JQyBkb21haW4sIHNvIHRoZXkKPiAgICBjYW4ndCBiZSBjb21wYXJlZAo+ IDUuIGV4cG9ydGluZyBtaWNyb3NlY29uZHMgcmVxdWlyZXMgYSBkaXZpc2lvbiBieSAxMDAwLCB3 aGljaCBtYXkKPiAgICBiZSBzbG93IG9uIHNvbWUgYXJjaGl0ZWN0dXJlcy4KPiAKPiBJZGVhbGx5 IHRpbWVzdGFtcHMgc2hvdWxkIGp1c3QgdXNlIDY0LWJpdCBuYW5vc2Vjb25kcyBpbnN0ZWFkLCBi dXQKPiBvZiBjb3Vyc2Ugd2UgY2FuJ3QgY2hhbmdlIHRoYXQgbm93LiBJbnN0ZWFkLCB0aGlzIHRy aWVzIHRvIGFkZHJlc3MKPiB0aGUgZmlyc3QgZm91ciBwb2ludHMgYWJvdmUgYnkgdXNpbmcgbW9u b3RvbmljICd0aW1lc3BlYycgdmFsdWVzLgo+IAo+IFRoZSBkb3duc2lkZSBpcyB0aGF0IHRoZXJl IGlzIGEgc21hbGwgcmlzayBvZiBicmVha2luZyB1c2VyIHNwYWNlCj4gaWYgdGhhdCBleHBlY3Rz IHRoZSBhYnNvbHV0ZSB0aW1lc3RhbXAgbnVtYmVycyB0byByZWxhdGUgdG8gdGhlCj4gcmVzdWx0 IG9mICdnZXR0aW1lb2ZkYXkoKScuIFBsZWFzZSByZXZpZXcgdGhlIHVzZXIgc3BhY2UgZHJpdmVy Cj4gYmVmb3JlIGFwcGx5aW5nIHRoaXMgcGF0Y2ggdG8gZW5zdXJlIHRoaXMgd29ya3MuCj4gCj4g U2lnbmVkLW9mZi1ieTogQXJuZCBCZXJnbWFubiA8YXJuZEBhcm5kYi5kZT4KPiAtLS0KPiAgZHJp dmVycy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2cyZC5jIHwgNiArKystLS0KPiAgZHJpdmVy cy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2lwcC5jIHwgOCArKysrLS0tLQo+ICAyIGZpbGVz IGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgNyBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2cyZC5jIGIvZHJpdmVycy9ncHUv ZHJtL2V4eW5vcy9leHlub3NfZHJtX2cyZC5jCj4gaW5kZXggMmI4YmYyZGQ2Mzg3Li45ZWZmZTQw ZjVmYTUgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2cy ZC5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2cyZC5jCj4gQEAg LTkyNiw3ICs5MjYsNyBAQCBzdGF0aWMgdm9pZCBnMmRfZmluaXNoX2V2ZW50KHN0cnVjdCBnMmRf ZGF0YSAqZzJkLCB1MzIgY21kbGlzdF9ubykKPiAgCXN0cnVjdCBkcm1fZGV2aWNlICpkcm1fZGV2 ID0gZzJkLT5zdWJkcnYuZHJtX2RldjsKPiAgCXN0cnVjdCBnMmRfcnVucXVldWVfbm9kZSAqcnVu cXVldWVfbm9kZSA9IGcyZC0+cnVucXVldWVfbm9kZTsKPiAgCXN0cnVjdCBkcm1fZXh5bm9zX3Bl bmRpbmdfZzJkX2V2ZW50ICplOwo+IC0Jc3RydWN0IHRpbWV2YWwgbm93Owo+ICsJc3RydWN0IHRp bWVzcGVjNjQgbm93Owo+ICAKPiAgCWlmIChsaXN0X2VtcHR5KCZydW5xdWV1ZV9ub2RlLT5ldmVu dF9saXN0KSkKPiAgCQlyZXR1cm47Cj4gQEAgLTkzNCw5ICs5MzQsOSBAQCBzdGF0aWMgdm9pZCBn MmRfZmluaXNoX2V2ZW50KHN0cnVjdCBnMmRfZGF0YSAqZzJkLCB1MzIgY21kbGlzdF9ubykKPiAg CWUgPSBsaXN0X2ZpcnN0X2VudHJ5KCZydW5xdWV1ZV9ub2RlLT5ldmVudF9saXN0LAo+ICAJCQkg ICAgIHN0cnVjdCBkcm1fZXh5bm9zX3BlbmRpbmdfZzJkX2V2ZW50LCBiYXNlLmxpbmspOwo+ICAK PiAtCWRvX2dldHRpbWVvZmRheSgmbm93KTsKPiArCWt0aW1lX2dldF90czY0KCZub3cpOwo+ICAJ ZS0+ZXZlbnQudHZfc2VjID0gbm93LnR2X3NlYzsKPiAtCWUtPmV2ZW50LnR2X3VzZWMgPSBub3cu dHZfdXNlYzsKPiArCWUtPmV2ZW50LnR2X3VzZWMgPSBub3cudHZfbnNlYyAvIE5TRUNfUEVSX1VT RUM7Cj4gIAllLT5ldmVudC5jbWRsaXN0X25vID0gY21kbGlzdF9ubzsKPiAgCj4gIAlkcm1fc2Vu ZF9ldmVudChkcm1fZGV2LCAmZS0+YmFzZSk7Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9leHlub3MvZXh5bm9zX2RybV9pcHAuYyBiL2RyaXZlcnMvZ3B1L2RybS9leHlub3MvZXh5bm9z X2RybV9pcHAuYwo+IGluZGV4IDNlZGRhMThjYzJkMi4uM2Y5ZDhkNzliYmRlIDEwMDY0NAo+IC0t LSBhL2RyaXZlcnMvZ3B1L2RybS9leHlub3MvZXh5bm9zX2RybV9pcHAuYwo+ICsrKyBiL2RyaXZl cnMvZ3B1L2RybS9leHlub3MvZXh5bm9zX2RybV9pcHAuYwo+IEBAIC0xNDA2LDcgKzE0MDYsNyBA QCBzdGF0aWMgaW50IGlwcF9zZW5kX2V2ZW50KHN0cnVjdCBleHlub3NfZHJtX2lwcGRydiAqaXBw ZHJ2LAo+ICAJc3RydWN0IGRybV9leHlub3NfaXBwX3F1ZXVlX2J1ZiBxYnVmOwo+ICAJc3RydWN0 IGRybV9leHlub3NfaXBwX3NlbmRfZXZlbnQgKmU7Cj4gIAlzdHJ1Y3QgbGlzdF9oZWFkICpoZWFk Owo+IC0Jc3RydWN0IHRpbWV2YWwgbm93Owo+ICsJc3RydWN0IHRpbWVzcGVjNjQgbm93Owo+ICAJ dTMyIHRidWZfaWRbRVhZTk9TX0RSTV9PUFNfTUFYXSA9IHswLCB9Owo+ICAJaW50IHJldCwgaTsK PiAgCj4gQEAgLTE1MDksMTAgKzE1MDksMTAgQEAgc3RhdGljIGludCBpcHBfc2VuZF9ldmVudChz dHJ1Y3QgZXh5bm9zX2RybV9pcHBkcnYgKmlwcGRydiwKPiAgCWUgPSBsaXN0X2ZpcnN0X2VudHJ5 KCZjX25vZGUtPmV2ZW50X2xpc3QsCj4gIAkJc3RydWN0IGRybV9leHlub3NfaXBwX3NlbmRfZXZl bnQsIGJhc2UubGluayk7Cj4gIAo+IC0JZG9fZ2V0dGltZW9mZGF5KCZub3cpOwo+IC0JRFJNX0RF QlVHX0tNUygidHZfc2VjWyVsZF10dl91c2VjWyVsZF1cbiIsIG5vdy50dl9zZWMsIG5vdy50dl91 c2VjKTsKPiArCWt0aW1lX2dldF90czY0KCZub3cpOwo+ICsJRFJNX0RFQlVHX0tNUygidHZfc2Vj WyVsbGRddHZfbnNlY1slbGRdXG4iLCAoczY0KW5vdy50dl9zZWMsIG5vdy50dl9uc2VjKTsKPiAg CWUtPmV2ZW50LnR2X3NlYyA9IG5vdy50dl9zZWM7Cj4gLQllLT5ldmVudC50dl91c2VjID0gbm93 LnR2X3VzZWM7Cj4gKwllLT5ldmVudC50dl91c2VjID0gbm93LnR2X25zZWMgLyBOU0VDX1BFUl9V U0VDOwo+ICAJZS0+ZXZlbnQucHJvcF9pZCA9IHByb3BlcnR5LT5wcm9wX2lkOwo+ICAKPiAgCS8q IHNldCBidWZmZXIgaWQgYWJvdXQgc291cmNlIGRlc3RpbmF0aW9uICovCj4gCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBs aXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK