From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH 6/9] drm/i915/execlists: Reset CSB write pointer after reset Date: Thu, 28 Jun 2018 11:06:25 +0100 Message-ID: <3a3a869d-1b4d-a783-d904-280e9ef7db6d@linux.intel.com> References: <20180627210712.25428-1-chris@chris-wilson.co.uk> <20180627210712.25428-6-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 DE5436ECB6 for ; Thu, 28 Jun 2018 10:06:27 +0000 (UTC) In-Reply-To: <20180627210712.25428-6-chris@chris-wilson.co.uk> Content-Language: en-GB 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 Ck9uIDI3LzA2LzIwMTggMjI6MDcsIENocmlzIFdpbHNvbiB3cm90ZToKPiBPbiBIVyByZXNldCwg dGhlIEhXIGNsZWFycyB0aGUgd3JpdGUgcG9pbnRlciAodG8gMCkuIEJ1dCBzaW5jZSBpdCBhbHNv Cj4gd3JpdGVzIGl0cyBmaXJzdCBDU0IgZW50cnkgdG8gc2xvdCAwLCB3ZSBuZWVkIHRvIHJlc2V0 IHRoZSB3cml0ZSBwb2ludGVyCj4gYmFjayB0byB0aGUgZWxlbWVudCBiZWZvcmUgKHNvIHRoZSBm aXJzdCBlbnRyeSB3ZSByZWFkIGlzIDApLgo+IAo+IFRoaXMgaXMgcmVxdWlyZWQgZm9yIHRoZSBu ZXh0IHBhdGNoLCB3aGVyZSB3ZSB0cnVzdCB0aGUgQ1NCIGNvbXBsZXRlbHkhCj4gCj4gU2lnbmVk LW9mZi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6IFR2 cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+Cj4gLS0tCj4gICBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYyB8IDE5ICsrKysrKysrKysrKysrKysrLS0KPiAgIDEg ZmlsZSBjaGFuZ2VkLCAxNyBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQo+IAo+IGRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2xyYy5jCj4gaW5kZXggMzY4YThjNzRkMTFkLi44YjExMWEyNjg2OTcgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMKPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9scmMuYwo+IEBAIC04ODQsNiArODg0LDIxIEBAIHN0YXRp YyB2b2lkIHJlc2V0X2lycShzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gICAJY2xl YXJfYml0KEVOR0lORV9JUlFfRVhFQ0xJU1QsICZlbmdpbmUtPmlycV9wb3N0ZWQpOwo+ICAgfQo+ ICAgCj4gK3N0YXRpYyB2b2lkIHJlc2V0X2NzYl9wb2ludGVycyhzdHJ1Y3QgaW50ZWxfZW5naW5l X2V4ZWNsaXN0cyAqZXhlY2xpc3RzKQo+ICt7Cj4gKwkvKgo+ICsJICogQWZ0ZXIgYSByZXNldCwg dGhlIEhXIHN0YXJ0cyB3cml0aW5nIGludG8gQ1NCIGVudHJ5IFswXS4gV2UKPiArCSAqIHRoZXJl Zm9yZSBoYXZlIHRvIHNldCBvdXIgSEVBRCBwb2ludGVyIGJhY2sgb25lIGVudHJ5IHNvIHRoYXQK PiArCSAqIHRoZSAqZmlyc3QqIGVudHJ5IHdlIGNoZWNrIGlzIGVudHJ5IDAuIFRvIGNvbXBsaWNh dGUgdGhpcyBmdXJ0aGVyLAo+ICsJICogYXMgd2UgZG9uJ3Qgd2FpdCBmb3IgdGhlIGZpcnN0IGlu dGVycnVwdCBhZnRlciByZXNldCwgd2UgaGF2ZSB0bwo+ICsJICogZmFrZSB0aGUgSFcgd3JpdGUg dG8gcG9pbnQgYmFjayB0byB0aGUgbGFzdCBlbnRyeSBzbyB0aGF0IG91cgo+ICsJICogaW5saW5l IGNvbXBhcmlzb24gb2Ygb3VyIGNhY2hlZCBoZWFkIHBvc2l0aW9uIGFnYWluc3QgdGhlIGxhc3Qg SFcKPiArCSAqIHdyaXRlIHdvcmtzIGV2ZW4gYmVmb3JlIHRoZSBmaXJzdCBpbnRlcnJ1cHQuCj4g KwkgKi8KPiArCWV4ZWNsaXN0cy0+Y3NiX2hlYWQgPSBHRU44X0NTQl9FTlRSSUVTIC0gMTsKPiAr CVdSSVRFX09OQ0UoKmV4ZWNsaXN0cy0+Y3NiX3dyaXRlLCAoR0VOOF9DU0JfRU5UUklFUyAtIDEp IHwgMHhmZiA8PCAxNik7CgpVc2UgX01BU0tFRF9GSUVMRCBhbmQgR0VOOF9DU0JfV1JJVEVfUFRS X01BU0s/Cgo+ICt9Cj4gKwo+ICAgc3RhdGljIHZvaWQgZXhlY2xpc3RzX2NhbmNlbF9yZXF1ZXN0 cyhzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUpCj4gICB7Cj4gICAJc3RydWN0IGludGVs X2VuZ2luZV9leGVjbGlzdHMgKiBjb25zdCBleGVjbGlzdHMgPSAmZW5naW5lLT5leGVjbGlzdHM7 Cj4gQEAgLTE5NTMsNyArMTk2OCw3IEBAIHN0YXRpYyB2b2lkIGV4ZWNsaXN0c19yZXNldChzdHJ1 Y3QgaW50ZWxfZW5naW5lX2NzICplbmdpbmUsCj4gICAJX191bndpbmRfaW5jb21wbGV0ZV9yZXF1 ZXN0cyhlbmdpbmUpOwo+ICAgCj4gICAJLyogRm9sbG93aW5nIHRoZSByZXNldCwgd2UgbmVlZCB0 byByZWxvYWQgdGhlIENTQiByZWFkL3dyaXRlIHBvaW50ZXJzICovCj4gLQllbmdpbmUtPmV4ZWNs aXN0cy5jc2JfaGVhZCA9IEdFTjhfQ1NCX0VOVFJJRVMgLSAxOwo+ICsJcmVzZXRfY3NiX3BvaW50 ZXJzKCZlbmdpbmUtPmV4ZWNsaXN0cyk7Cj4gICAKPiAgIAlzcGluX3VubG9ja19pcnFyZXN0b3Jl KCZlbmdpbmUtPnRpbWVsaW5lLmxvY2ssIGZsYWdzKTsKPiAgIAo+IEBAIC0yNDUyLDcgKzI0Njcs NiBAQCBzdGF0aWMgaW50IGxvZ2ljYWxfcmluZ19pbml0KHN0cnVjdCBpbnRlbF9lbmdpbmVfY3Mg KmVuZ2luZSkKPiAgIAkJCXVwcGVyXzMyX2JpdHMoY2UtPmxyY19kZXNjKTsKPiAgIAl9Cj4gICAK PiAtCWV4ZWNsaXN0cy0+Y3NiX2hlYWQgPSBHRU44X0NTQl9FTlRSSUVTIC0gMTsKPiAgIAlleGVj bGlzdHMtPmNzYl9yZWFkID0KPiAgIAkJaTkxNS0+cmVncyArIGk5MTVfbW1pb19yZWdfb2Zmc2V0 KFJJTkdfQ09OVEVYVF9TVEFUVVNfUFRSKGVuZ2luZSkpOwo+ICAgCWlmIChjc2JfZm9yY2VfbW1p byhpOTE1KSkgewo+IEBAIC0yNDY3LDYgKzI0ODEsNyBAQCBzdGF0aWMgaW50IGxvZ2ljYWxfcmlu Z19pbml0KHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSkKPiAgIAkJZXhlY2xpc3RzLT5j c2Jfd3JpdGUgPQo+ICAgCQkJJmVuZ2luZS0+c3RhdHVzX3BhZ2UucGFnZV9hZGRyW2ludGVsX2h3 c19jc2Jfd3JpdGVfaW5kZXgoaTkxNSldOwo+ICAgCX0KPiArCXJlc2V0X2NzYl9wb2ludGVycyhl eGVjbGlzdHMpOwo+ICAgCj4gICAJcmV0dXJuIDA7Cj4gICAKPiAKClJlZ2FyZHMsCgpUdnJ0a28K X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==