From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH 4/6] drm/i915/ringbuffer: Move irq seqno barrier to the GPU for gen7 Date: Mon, 31 Dec 2018 10:43:07 +0000 Message-ID: <8a4a057e-c784-2466-66ff-e69055200426@linux.intel.com> References: <20181228171641.16531-1-chris@chris-wilson.co.uk> <20181228171641.16531-4-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 49CE989949 for ; Mon, 31 Dec 2018 10:43:10 +0000 (UTC) In-Reply-To: <20181228171641.16531-4-chris@chris-wilson.co.uk> Content-Language: en-US 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 Ck9uIDI4LzEyLzIwMTggMTc6MTYsIENocmlzIFdpbHNvbiB3cm90ZToKPiBUaGUgaXJxX3NlcW5v X2JhcnJpZXIgaXMgYSB0cmFkZW9mZiBiZXR3ZWVuIGRvaW5nIHdvcmsgb24gZXZlcnkgcmVxdWVz dAo+IChvbiB0aGUgR1BVKSBhbmQgZG9pbmcgd29yayBhZnRlciBldmVyeSBpbnRlcnJ1cHQgKG9u IHRoZSBDUFUpLiBXZQo+IHByZXN1bWUgd2UgaGF2ZSBtYW55IG1vcmUgcmVxdWVzdHMgdGhhbiBp bnRlcnJ1cHRzISBIb3dldmVyLCB0aGUgY3VycmVudAo+IHcvYSBmb3IgSXZ5YnJpZGdlIGlzIGFu IGltcGxpY2l0IGRlbGF5IHRoYXQgY3VycmVudGx5IGZhaWxzIHNwb3JhZGljYWxseQo+IGFuZCBj b25zaXN0ZW50bHkgaWYgd2UgbW92ZSB0aGUgdy9hIGludG8gdGhlIGlycSBoYW5kbGVyIGl0c2Vs Zi4gVGhpcwo+IG1ha2VzIHRoZSBDUFUgYmFycmllciB1bnRlbmFibGUgZm9yIHVwY29taW5nIGlu dGVycnVwdCBoYW5kbGVyIGNoYW5nZXMKPiBhbmQgc28gd2UgbmVlZCB0byByZXBsYWNlIGl0IHdp dGggYSBkZWxheSBvbiB0aGUgR1BVIGJlZm9yZSB3ZSBzZW5kIHRoZQo+IE1JX1VTRVJfSU5URVJS VVBULiBBcyBpdCB0dXJucyBvdXQgdGhhdCBkZWxheSBpcyAzMnggTUlfU1RPUkVfRFdPUkRfSU1N LAo+IG9yIGFib3V0IDAuNnVzIHBlciByZXF1ZXN0ISBRdWl0ZSBuYXN0eSwgYnV0IHRoZSBsZXNz ZXIgb2YgdHdvIGV2aWxzCj4gbG9va2luZyB0byB0aGUgZnV0dXJlLgo+IAo+IFRlc3RjYXNlOiBp Z3QvZ2VtX3N5bmMKPiBTaWduZWQtb2ZmLWJ5OiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdp bHNvbi5jby51az4KPiAtLS0KPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3JpbmdidWZm ZXIuYyB8IDgwICsrKysrKysrKysrKysrLS0tLS0tLS0tLS0KPiAgIDEgZmlsZSBjaGFuZ2VkLCA0 NCBpbnNlcnRpb25zKCspLCAzNiBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfcmluZ2J1ZmZlci5jCj4gaW5kZXggMmZiM2EzNjRjMzkwLi5kZDk5NjEwM2Q0OTUgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jCj4gKysr IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcmluZ2J1ZmZlci5jCj4gQEAgLTQ0Myw2ICs0 NDMsMzQgQEAgc3RhdGljIHZvaWQgZ2VuNl94Y3NfZW1pdF9icmVhZGNydW1iKHN0cnVjdCBpOTE1 X3JlcXVlc3QgKnJxLCB1MzIgKmNzKQo+ICAgfQo+ICAgc3RhdGljIGNvbnN0IGludCBnZW42X3hj c19lbWl0X2JyZWFkY3J1bWJfc3ogPSA0Owo+ICAgCj4gKyNkZWZpbmUgR0VON19YQ1NfV0EgMzIK PiArc3RhdGljIHZvaWQgZ2VuN194Y3NfZW1pdF9icmVhZGNydW1iKHN0cnVjdCBpOTE1X3JlcXVl c3QgKnJxLCB1MzIgKmNzKQo+ICt7Cj4gKwlpbnQgaTsKPiArCj4gKwkqY3MrKyA9IE1JX0ZMVVNI X0RXIHwgTUlfRkxVU0hfRFdfT1BfU1RPUkVEVzsKPiArCSpjcysrID0gaW50ZWxfaHdzX3NlcW5v X2FkZHJlc3MocnEtPmVuZ2luZSkgfCBNSV9GTFVTSF9EV19VU0VfR1RUOwo+ICsJKmNzKysgPSBy cS0+Z2xvYmFsX3NlcW5vOwo+ICsKPiArCWZvciAoaSA9IDA7IGkgPCBHRU43X1hDU19XQTsgaSsr KSB7Cj4gKwkJKmNzKysgPSBNSV9TVE9SRV9EV09SRF9JTkRFWDsKPiArCQkqY3MrKyA9IEk5MTVf R0VNX0hXU19JTkRFWF9BRERSOwo+ICsJCSpjcysrID0gcnEtPmdsb2JhbF9zZXFubzsKPiArCX0K PiArCj4gKwkqY3MrKyA9IE1JX0ZMVVNIX0RXOwo+ICsJKmNzKysgPSAwOwo+ICsJKmNzKysgPSAw Owo+ICsKPiArCSpjcysrID0gTUlfVVNFUl9JTlRFUlJVUFQ7Cj4gKwkqY3MrKyA9IE1JX05PT1A7 Cj4gKwo+ICsJcnEtPnRhaWwgPSBpbnRlbF9yaW5nX29mZnNldChycSwgY3MpOwo+ICsJYXNzZXJ0 X3JpbmdfdGFpbF92YWxpZChycS0+cmluZywgcnEtPnRhaWwpOwo+ICt9Cj4gK3N0YXRpYyBjb25z dCBpbnQgZ2VuN194Y3NfZW1pdF9icmVhZGNydW1iX3N6ID0gOCArIEdFTjdfWENTX1dBICogMzsK CklzIGl0IHdvcnRoIG1vdmluZyB0aGlzIGJlZm9yZSB0aGUgZnVuY3Rpb24sIGFuZCB0aGVuIGlu IHRoZSBmdW5jdGlvbiAKaGF2ZSBhIGxpdHRsZSBHRU1fQlVHX09OIHVzaW5nIGNzIHBvaW50ZXIg YXJpdGhtZXRpYyB0byBjaGVjayB0aGUgdHdvIApzaXplcyBtYXRjaD8gT3IgZXZlbiBzaW1wbGVy IHRoZSBmdW5jdGlvbiBjb3VsZCB1c2UgCmVuZ2luZS0+ZW1pdF9icmVhZGNydW1iX3N6IHRvIGNo ZWNrIGFnYWluc3QuCgo+ICsjdW5kZWYgR0VON19YQ1NfV0EKPiArCj4gICBzdGF0aWMgdm9pZCBz ZXRfaHdzdGFtKHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSwgdTMyIG1hc2spCj4gICB7 Cj4gICAJLyoKPiBAQCAtODc0LDMxICs5MDIsNiBAQCBnZW41X3NlcW5vX2JhcnJpZXIoc3RydWN0 IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ICAgCXVzbGVlcF9yYW5nZSgxMjUsIDI1MCk7Cj4g ICB9Cj4gICAKPiAtc3RhdGljIHZvaWQKPiAtZ2VuNl9zZXFub19iYXJyaWVyKHN0cnVjdCBpbnRl bF9lbmdpbmVfY3MgKmVuZ2luZSkKPiAtewo+IC0Jc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRl dl9wcml2ID0gZW5naW5lLT5pOTE1Owo+IC0KPiAtCS8qIFdvcmthcm91bmQgdG8gZm9yY2UgY29y cmVjdCBvcmRlcmluZyBiZXR3ZWVuIGlycSBhbmQgc2Vxbm8gd3JpdGVzIG9uCj4gLQkgKiBpdmIg KGFuZCBtYXliZSBhbHNvIG9uIHNuYikgYnkgcmVhZGluZyBmcm9tIGEgQ1MgcmVnaXN0ZXIgKGxp a2UKPiAtCSAqIEFDVEhEKSBiZWZvcmUgcmVhZGluZyB0aGUgc3RhdHVzIHBhZ2UuCj4gLQkgKgo+ IC0JICogTm90ZSB0aGF0IHRoaXMgZWZmZWN0aXZlbHkgc3RhbGxzIHRoZSByZWFkIGJ5IHRoZSB0 aW1lIGl0IHRha2VzIHRvCj4gLQkgKiBkbyBhIG1lbW9yeSB0cmFuc2FjdGlvbiwgd2hpY2ggbW9y ZSBvciBsZXNzIGVuc3VyZXMgdGhhdCB0aGUgd3JpdGUKPiAtCSAqIGZyb20gdGhlIEdQVSBoYXMg c3VmZmljaWVudCB0aW1lIHRvIGludmFsaWRhdGUgdGhlIENQVSBjYWNoZWxpbmUuCj4gLQkgKiBB bHRlcm5hdGl2ZWx5IHdlIGNvdWxkIGRlbGF5IHRoZSBpbnRlcnJ1cHQgZnJvbSB0aGUgQ1Mgcmlu ZyB0byBnaXZlCj4gLQkgKiB0aGUgd3JpdGUgdGltZSB0byBsYW5kLCBidXQgdGhhdCB3b3VsZCBp bmN1ciBhIGRlbGF5IGFmdGVyIGV2ZXJ5Cj4gLQkgKiBiYXRjaCBpLmUuIG11Y2ggbW9yZSBmcmVx dWVudCB0aGFuIGEgZGVsYXkgd2hlbiB3YWl0aW5nIGZvciB0aGUKPiAtCSAqIGludGVycnVwdCAo d2l0aCB0aGUgc2FtZSBuZXQgbGF0ZW5jeSkuCj4gLQkgKgo+IC0JICogQWxzbyBub3RlIHRoYXQg dG8gcHJldmVudCB3aG9sZSBtYWNoaW5lIGhhbmdzIG9uIGdlbjcsIHdlIGhhdmUgdG8KPiAtCSAq IHRha2UgdGhlIHNwaW5sb2NrIHRvIGd1YXJkIGFnYWluc3QgY29uY3VycmVudCBjYWNoZWxpbmUg YWNjZXNzLgo+IC0JICovCj4gLQlzcGluX2xvY2tfaXJxKCZkZXZfcHJpdi0+dW5jb3JlLmxvY2sp Owo+IC0JUE9TVElOR19SRUFEX0ZXKFJJTkdfQUNUSEQoZW5naW5lLT5tbWlvX2Jhc2UpKTsKPiAt CXNwaW5fdW5sb2NrX2lycSgmZGV2X3ByaXYtPnVuY29yZS5sb2NrKTsKPiAtfQo+IC0KPiAgIHN0 YXRpYyB2b2lkCj4gICBnZW41X2lycV9lbmFibGUoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5n aW5lKQo+ICAgewo+IEBAIC0yMjU4LDEwICsyMjYxLDEzIEBAIGludCBpbnRlbF9pbml0X2JzZF9y aW5nX2J1ZmZlcihzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gICAJCWVuZ2luZS0+ ZW1pdF9mbHVzaCA9IGdlbjZfYnNkX3JpbmdfZmx1c2g7Cj4gICAJCWVuZ2luZS0+aXJxX2VuYWJs ZV9tYXNrID0gR1RfQlNEX1VTRVJfSU5URVJSVVBUOwo+ICAgCj4gLQkJZW5naW5lLT5lbWl0X2Jy ZWFkY3J1bWIgPSBnZW42X3hjc19lbWl0X2JyZWFkY3J1bWI7Cj4gLQkJZW5naW5lLT5lbWl0X2Jy ZWFkY3J1bWJfc3ogPSBnZW42X3hjc19lbWl0X2JyZWFkY3J1bWJfc3o7Cj4gLQkJaWYgKCFJU19H RU4oZGV2X3ByaXYsIDYpKQo+IC0JCQllbmdpbmUtPmlycV9zZXFub19iYXJyaWVyID0gZ2VuNl9z ZXFub19iYXJyaWVyOwo+ICsJCWlmIChJU19HRU4oZGV2X3ByaXYsIDYpKSB7Cj4gKwkJCWVuZ2lu ZS0+ZW1pdF9icmVhZGNydW1iID0gZ2VuNl94Y3NfZW1pdF9icmVhZGNydW1iOwo+ICsJCQllbmdp bmUtPmVtaXRfYnJlYWRjcnVtYl9zeiA9IGdlbjZfeGNzX2VtaXRfYnJlYWRjcnVtYl9zejsKPiAr CQl9IGVsc2Ugewo+ICsJCQllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYiA9IGdlbjdfeGNzX2VtaXRf YnJlYWRjcnVtYjsKPiArCQkJZW5naW5lLT5lbWl0X2JyZWFkY3J1bWJfc3ogPSBnZW43X3hjc19l bWl0X2JyZWFkY3J1bWJfc3o7Cj4gKwkJfQo+ICAgCX0gZWxzZSB7Cj4gICAJCWVuZ2luZS0+ZW1p dF9mbHVzaCA9IGJzZF9yaW5nX2ZsdXNoOwo+ICAgCQlpZiAoSVNfR0VOKGRldl9wcml2LCA1KSkK PiBAQCAtMjI4NCwxMCArMjI5MCwxMyBAQCBpbnQgaW50ZWxfaW5pdF9ibHRfcmluZ19idWZmZXIo c3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ICAgCWVuZ2luZS0+ZW1pdF9mbHVzaCA9 IGdlbjZfcmluZ19mbHVzaDsKPiAgIAllbmdpbmUtPmlycV9lbmFibGVfbWFzayA9IEdUX0JMVF9V U0VSX0lOVEVSUlVQVDsKPiAgIAo+IC0JZW5naW5lLT5lbWl0X2JyZWFkY3J1bWIgPSBnZW42X3hj c19lbWl0X2JyZWFkY3J1bWI7Cj4gLQllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYl9zeiA9IGdlbjZf eGNzX2VtaXRfYnJlYWRjcnVtYl9zejsKPiAtCWlmICghSVNfR0VOKGRldl9wcml2LCA2KSkKPiAt CQllbmdpbmUtPmlycV9zZXFub19iYXJyaWVyID0gZ2VuNl9zZXFub19iYXJyaWVyOwo+ICsJaWYg KElTX0dFTihkZXZfcHJpdiwgNikpIHsKPiArCQllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYiA9IGdl bjZfeGNzX2VtaXRfYnJlYWRjcnVtYjsKPiArCQllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYl9zeiA9 IGdlbjZfeGNzX2VtaXRfYnJlYWRjcnVtYl9zejsKPiArCX0gZWxzZSB7Cj4gKwkJZW5naW5lLT5l bWl0X2JyZWFkY3J1bWIgPSBnZW43X3hjc19lbWl0X2JyZWFkY3J1bWI7Cj4gKwkJZW5naW5lLT5l bWl0X2JyZWFkY3J1bWJfc3ogPSBnZW43X3hjc19lbWl0X2JyZWFkY3J1bWJfc3o7Cj4gKwl9Cj4g ICAKPiAgIAlyZXR1cm4gaW50ZWxfaW5pdF9yaW5nX2J1ZmZlcihlbmdpbmUpOwo+ICAgfQo+IEBA IC0yMzA1LDkgKzIzMTQsOCBAQCBpbnQgaW50ZWxfaW5pdF92ZWJveF9yaW5nX2J1ZmZlcihzdHJ1 Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gICAJZW5naW5lLT5pcnFfZW5hYmxlID0gaHN3 X3ZlYm94X2lycV9lbmFibGU7Cj4gICAJZW5naW5lLT5pcnFfZGlzYWJsZSA9IGhzd192ZWJveF9p cnFfZGlzYWJsZTsKPiAgIAo+IC0JZW5naW5lLT5lbWl0X2JyZWFkY3J1bWIgPSBnZW42X3hjc19l bWl0X2JyZWFkY3J1bWI7Cj4gLQllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYl9zeiA9IGdlbjZfeGNz X2VtaXRfYnJlYWRjcnVtYl9zejsKPiAtCWVuZ2luZS0+aXJxX3NlcW5vX2JhcnJpZXIgPSBnZW42 X3NlcW5vX2JhcnJpZXI7Cj4gKwllbmdpbmUtPmVtaXRfYnJlYWRjcnVtYiA9IGdlbjdfeGNzX2Vt aXRfYnJlYWRjcnVtYjsKPiArCWVuZ2luZS0+ZW1pdF9icmVhZGNydW1iX3N6ID0gZ2VuN194Y3Nf ZW1pdF9icmVhZGNydW1iX3N6Owo+ICAgCj4gICAJcmV0dXJuIGludGVsX2luaXRfcmluZ19idWZm ZXIoZW5naW5lKTsKPiAgIH0KPiAKClJldmlld2VkLWJ5OiBUdnJ0a28gVXJzdWxpbiA8dHZydGtv LnVyc3VsaW5AaW50ZWwuY29tPgoKUmVnYXJkcywKClR2cnRrbwpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVs LWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK