From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH 3/3] drm/i915/execlists: Force preemption Date: Thu, 20 Jun 2019 17:19:32 +0300 Message-ID: <87pnn85ogb.fsf@gaia.fi.intel.com> References: <20190620070559.30076-1-chris@chris-wilson.co.uk> <20190620070559.30076-3-chris@chris-wilson.co.uk> <87v9x05pbn.fsf@gaia.fi.intel.com> <156103970515.664.11214388171288612871@skylake-alporthouse-com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 12B7C6E58B for ; Thu, 20 Jun 2019 14:19:43 +0000 (UTC) In-Reply-To: <156103970515.664.11214388171288612871@skylake-alporthouse-com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+IHdyaXRlczoKCj4gUXVvdGlu ZyBNaWthIEt1b3BwYWxhICgyMDE5LTA2LTIwIDE1OjAwOjQ0KQo+PiBDaHJpcyBXaWxzb24gPGNo cmlzQGNocmlzLXdpbHNvbi5jby51az4gd3JpdGVzOgo+PiAKPj4gPiBJZiB0aGUgcHJlZW1wdGVk IGNvbnRleHQgdGFrZXMgdG9vIGxvbmcgdG8gcmVsaW5xdWlzaCBjb250cm9sLCBlLmcuIGl0Cj4+ ID4gaXMgc3R1Y2sgaW5zaWRlIGEgc2hhZGVyIHdpdGggYXJiaXRyYXRpb24gZGlzYWJsZWQsIGV2 aWN0IHRoYXQgY29udGV4dAo+PiA+IHdpdGggYW4gZW5naW5lIHJlc2V0LiBUaGlzIGVuc3VyZXMg dGhhdCBwcmVlbXB0aW9ucyBhcmUgcmVhc29uYWJseQo+PiA+IHJlc3BvbnNpdmUsIHByb3ZpZGlu ZyBhIHRpZ2h0ZXIgUW9TIGZvciB0aGUgbW9yZSBpbXBvcnRhbnQgY29udGV4dCBhdAo+PiA+IHRo ZSBjb3N0IG9mIGZsYWdnaW5nIHVucmVzcG9uc2l2ZSBjb250ZXh0cyBtb3JlIGZyZXF1ZW50bHkg KGkuZS4gaW5zdGVhZAo+PiA+IG9mIHVzaW5nIGFuIH4xMHMgaGFuZ2NoZWNrLCB3ZSBub3cgZXZp Y3QgYXQgfjEwbXMpLiAgVGhlIGNoYWxsZW5nZSBvZgo+PiA+IGxpZXMgaW4gcGlja2luZyBhIHRp bWVvdXQgdGhhdCBjYW4gYmUgcmVhc29uYWJseSBzZXJ2aWNlZCBieSBIVyBmb3IKPj4gPiB0eXBp Y2FsIHdvcmtsb2FkcywgYmFsYW5jaW5nIHRoZSBleGlzdGluZyBjbGllbnRzIGFnYWluc3QgdGhl IG5lZWRzIGZvcgo+PiA+IHJlc3BvbnNpdmVuZXNzLgo+PiA+Cj4+ID4gU2lnbmVkLW9mZi1ieTog Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4+ID4gQ2M6IE1pa2EgS3Vv cHBhbGEgPG1pa2Eua3VvcHBhbGFAbGludXguaW50ZWwuY29tPgo+PiA+IENjOiBUdnJ0a28gVXJz dWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgo+PiA+IC0tLQo+PiA+ICBkcml2ZXJzL2dw dS9kcm0vaTkxNS9LY29uZmlnLnByb2ZpbGUgfCAxMiArKysrKysKPj4gPiAgZHJpdmVycy9ncHUv ZHJtL2k5MTUvZ3QvaW50ZWxfbHJjLmMgIHwgNTYgKysrKysrKysrKysrKysrKysrKysrKysrKyst LQo+PiA+ICAyIGZpbGVzIGNoYW5nZWQsIDY1IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0p Cj4+ID4KPj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvS2NvbmZpZy5wcm9m aWxlIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvS2NvbmZpZy5wcm9maWxlCj4+ID4gaW5kZXggNDhk Zjg4ODlhODhhLi44MjczZDNiYWFmZTQgMTAwNjQ0Cj4+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJt L2k5MTUvS2NvbmZpZy5wcm9maWxlCj4+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvS2Nv bmZpZy5wcm9maWxlCj4+ID4gQEAgLTI1LDMgKzI1LDE1IEBAIGNvbmZpZyBEUk1fSTkxNV9TUElO X1JFUVVFU1QKPj4gPiAgICAgICAgIE1heSBiZSAwIHRvIGRpc2FibGUgdGhlIGluaXRpYWwgc3Bp bi4gSW4gcHJhY3RpY2UsIHdlIGVzdGltYXRlCj4+ID4gICAgICAgICB0aGUgY29zdCBvZiBlbmFi bGluZyB0aGUgaW50ZXJydXB0IChpZiBjdXJyZW50bHkgZGlzYWJsZWQpIHRvIGJlCj4+ID4gICAg ICAgICBhIGZldyBtaWNyb3NlY29uZHMuCj4+ID4gKwo+PiA+ICtjb25maWcgRFJNX0k5MTVfUFJF RU1QVF9USU1FT1VUCj4+ID4gKyAgICAgaW50ICJQcmVlbXB0IHRpbWVvdXQgKG1zKSIKPj4gPiAr ICAgICBkZWZhdWx0IDEwICMgbWlsbGlzZWNvbmRzCj4+ID4gKyAgICAgaGVscAo+PiA+ICsgICAg ICAgSG93IGxvbmcgdG8gd2FpdCAoaW4gbWlsbGlzZWNvbmRzKSBmb3IgYSBwcmVlbXB0aW9uIGV2 ZW50IHRvIG9jY3VyCj4+ID4gKyAgICAgICB3aGVuIHN1Ym1pdHRpbmcgYSBuZXcgY29udGV4dCB2 aWEgZXhlY2xpc3RzLiBJZiB0aGUgY3VycmVudCBjb250ZXh0Cj4+ID4gKyAgICAgICBkb2VzIG5v dCBoaXQgYW4gYXJiaXRyYXRpb24gcG9pbnQgYW5kIHlpZWxkIHRvIEhXIGJlZm9yZSB0aGUgdGlt ZXIKPj4gPiArICAgICAgIGV4cGlyZXMsIHRoZSBIVyB3aWxsIGJlIHJlc2V0IHRvIGFsbG93IHRo ZSBtb3JlIGltcG9ydGFudCBjb250ZXh0Cj4+ID4gKyAgICAgICB0byBleGVjdXRlLgo+PiA+ICsK Pj4gPiArICAgICAgIE1heSBiZSAwIHRvIGRpc2FibGUgdGhlIHRpbWVvdXQuCj4+ID4gZGlmZiAt LWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d0L2ludGVsX2xyYy5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvZ3QvaW50ZWxfbHJjLmMKPj4gPiBpbmRleCBmY2E3OWFkYjRhYTMuLmU4ZDdkZWJh M2U0OSAxMDA2NDQKPj4gPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9ndC9pbnRlbF9scmMu Ywo+PiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d0L2ludGVsX2xyYy5jCj4+ID4gQEAg LTg4OSw2ICs4ODksMTUgQEAgZW5hYmxlX3RpbWVzbGljZShzdHJ1Y3QgaW50ZWxfZW5naW5lX2Nz ICplbmdpbmUpCj4+ID4gICAgICAgcmV0dXJuIGxhc3QgJiYgbmVlZF90aW1lc2xpY2UoZW5naW5l LCBsYXN0KTsKPj4gPiAgfQo+PiA+ICAKPj4gPiArc3RhdGljIHVuc2lnbmVkIGxvbmcgcHJlZW1w dF9leHBpcmVzKHZvaWQpCj4+ID4gK3sKPj4gPiArICAgICB1bnNpZ25lZCBsb25nIHRpbWVvdXQg PQo+PiAKPj4gY291bGQgYmUgY29uc3QKPj4gCj4+ID4gKyAgICAgICAgICAgICBtc2Vjc190b19q aWZmaWVzX3RpbWVvdXQoQ09ORklHX0RSTV9JOTE1X1BSRUVNUFRfVElNRU9VVCk7Cj4+ID4gKwo+ PiA+ICsgICAgIGJhcnJpZXIoKTsKPj4gCj4+IFRoaXMgbmVlZHMgYSBjb21tZW50LiBJIGZhaWwg dG8gY29ubmVjdCB0aGUgZG90cyBhcyBqaWZmaWVzCj4+IGlzIHZvbGF0aWxlIGJ5IG5hdHVyZS4K Pgo+IEl0J3MganVzdCBjcm9zc2luZyB0aGUgJ3QnIGFuZCBkb3R0aW5nIHRoZSAnaScuIFdoYXQg SSB3YXMgdGhpbmtpbmcgd2FzCj4gd2UgZG9uJ3Qgd2FudCB0aGUgY29tcGlsZXIgdG8gbG9hZCBq aWZmaWVzIHRoZW4gY29tcHV0ZSB0aGUgdGltZW91dC4gU28KPiBiYXJyaWVyKCkgdGhlcmUgc2F5 cyB0aGF0IHRpbWVvdXQgaXMgYWx3YXlzIGNvbXB1dGVkIGZpcnN0LiBOb3cgc2luY2UgaXQKPiBp cyBsaWtlbHkgdG8gYmUgYSBmdW5jdGlvbiBjYWxsIChidXQgSSdtIHRyeWluZyB0byBmaW5kIGEg d2F5IHRvIGxldCBpdAo+IHByZWNvbXB1dGUgdGhlIGNvbnN0YW50KSwgaXQgd2lsbCBhbHdheXMg YmUgcHJlY29tcHV0ZWQsIGJ1dCB3aG8gdHJ1c3RzCj4gYSBjb21waWxlci4KPgo+PiA+ICsgICAg IHJldHVybiBqaWZmaWVzICsgdGltZW91dDsKPj4gPiArfQo+PiA+ICsKPj4gPiAgc3RhdGljIHZv aWQgZXhlY2xpc3RzX2RlcXVldWUoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+PiA+ ICB7Cj4+ID4gICAgICAgc3RydWN0IGludGVsX2VuZ2luZV9leGVjbGlzdHMgKiBjb25zdCBleGVj bGlzdHMgPSAmZW5naW5lLT5leGVjbGlzdHM7Cj4+ID4gQEAgLTEyMjAsNiArMTIyOSw5IEBAIHN0 YXRpYyB2b2lkIGV4ZWNsaXN0c19kZXF1ZXVlKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2lu ZSkKPj4gPiAgICAgICAgICAgICAgICpwb3J0ID0gZXhlY2xpc3RzX3NjaGVkdWxlX2luKGxhc3Qs IHBvcnQgLSBleGVjbGlzdHMtPnBlbmRpbmcpOwo+PiA+ICAgICAgICAgICAgICAgbWVtc2V0KHBv cnQgKyAxLCAwLCAobGFzdF9wb3J0IC0gcG9ydCkgKiBzaXplb2YoKnBvcnQpKTsKPj4gPiAgICAg ICAgICAgICAgIGV4ZWNsaXN0c19zdWJtaXRfcG9ydHMoZW5naW5lKTsKPj4gPiArCj4+ID4gKyAg ICAgICAgICAgICBpZiAoQ09ORklHX0RSTV9JOTE1X1BSRUVNUFRfVElNRU9VVCkKPj4gPiArICAg ICAgICAgICAgICAgICAgICAgbW9kX3RpbWVyKCZleGVjbGlzdHMtPnRpbWVyLCBwcmVlbXB0X2V4 cGlyZXMoKSk7Cj4+ID4gICAgICAgfQo+PiA+ICB9Cj4+ID4gIAo+PiA+IEBAIC0xMzc2LDEzICsx Mzg4LDQ4IEBAIHN0YXRpYyB2b2lkIHByb2Nlc3NfY3NiKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3Mg KmVuZ2luZSkKPj4gPiAgICAgICBpbnZhbGlkYXRlX2NzYl9lbnRyaWVzKCZidWZbMF0sICZidWZb bnVtX2VudHJpZXMgLSAxXSk7Cj4+ID4gIH0KPj4gPiAgCj4+ID4gLXN0YXRpYyB2b2lkIF9fZXhl Y2xpc3RzX3N1Ym1pc3Npb25fdGFza2xldChzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICpjb25zdCBl bmdpbmUpCj4+ID4gK3N0YXRpYyBib29sIF9fZXhlY2xpc3RzX3N1Ym1pc3Npb25fdGFza2xldChz dHJ1Y3QgaW50ZWxfZW5naW5lX2NzICpjb25zdCBlbmdpbmUpCj4+ID4gIHsKPj4gPiAgICAgICBs b2NrZGVwX2Fzc2VydF9oZWxkKCZlbmdpbmUtPmFjdGl2ZS5sb2NrKTsKPj4gPiAgCj4+ID4gICAg ICAgcHJvY2Vzc19jc2IoZW5naW5lKTsKPj4gPiAtICAgICBpZiAoIWVuZ2luZS0+ZXhlY2xpc3Rz LnBlbmRpbmdbMF0pCj4+ID4gKyAgICAgaWYgKCFlbmdpbmUtPmV4ZWNsaXN0cy5wZW5kaW5nWzBd KSB7Cj4+ID4gICAgICAgICAgICAgICBleGVjbGlzdHNfZGVxdWV1ZShlbmdpbmUpOwo+PiA+ICsg ICAgICAgICAgICAgcmV0dXJuIHRydWU7Cj4+ID4gKyAgICAgfQo+PiA+ICsKPj4gPiArICAgICBy ZXR1cm4gZmFsc2U7Cj4+ID4gK30KPj4gPiArCj4+ID4gK3N0YXRpYyB2b2lkIHByZWVtcHRfcmVz ZXQoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+PiA+ICt7Cj4+ID4gKyAgICAgY29u c3QgdW5zaWduZWQgaW50IGJpdCA9IEk5MTVfUkVTRVRfRU5HSU5FICsgZW5naW5lLT5pZDsKPj4g PiArICAgICB1bnNpZ25lZCBsb25nICpsb2NrID0gJmVuZ2luZS0+aTkxNS0+Z3B1X2Vycm9yLmZs YWdzOwo+PiA+ICsKPj4gPiArICAgICBpZiAodGVzdF9hbmRfc2V0X2JpdChiaXQsIGxvY2spKQo+ PiA+ICsgICAgICAgICAgICAgcmV0dXJuOwo+PiA+ICsKPj4gPiArICAgICB0YXNrbGV0X2Rpc2Fi bGVfbm9zeW5jKCZlbmdpbmUtPmV4ZWNsaXN0cy50YXNrbGV0KTsKPj4gPiArICAgICBzcGluX3Vu bG9jaygmZW5naW5lLT5hY3RpdmUubG9jayk7Cj4+ID4gKwo+PiAKPj4gV2h5IGRvIHdlIG5lZWQg dG8gZHJvcCB0aGUgbG9jaz8KPgo+IFdlIHRha2UgaXQgYWdhaW4gaW5zaWRlIHRoZSByZXNldCwg YW5kIEkgYW0gZmFyIHRvbyBsYXp5IHRvIGxpZnQgaXQgdG8KPiB0aGUgY2FsbGVyIDopIERpc2Fi bGluZyB0aGUgdGFza2xldCB3aWxsIHByZXZlbnQgb3RoZXIgdGhyZWFkcyBmcm9tCj4gc3VibWl0 dGluZyBhcyB3ZSBkcm9wIHRoZSBsb2NrLgoKV2l0aCB0aGUgYmFycmllciBjb21tZW50ZWQsCgpS ZXZpZXdlZC1ieTogTWlrYSBLdW9wcGFsYSA8bWlrYS5rdW9wcGFsYUBsaW51eC5pbnRlbC5jb20+ CgpPaywgdGhlIHdheSB5b3UgZ290IHRvIHRpbWVzbGljaW5nIHdpdGggMiBsYXN0IHBhdGNoZXMg d2FzCnZlcnkgZWxlZ2FudCwgc3VycHJpY2luZ2x5IHNvLgoKTm93IGxldHMgaG9wZSBJIHdhc24n dCBjb21wbGV0ZWx5IGZvb2xlZCBieSB0aGUgZmlyc3Qgb25lLgpUaGVyZSBpcyBhdGxlYXN0IHNv bWV3aGF0IHJlYXNzdXJpbmcgYW1vdW50IG9mIENJIGN5Y2xlcwpiZWhpbmQgdGhlc2UgYXQgdGhp cyBzdGFnZS4KLU1pa2EKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Au b3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwt Z2Z4