From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eero Tamminen Subject: Re: [Mesa-dev] [libdrm PATCH] intel: Make unsynchronized GTT mappings work on systems with snooping. Date: Tue, 14 Mar 2017 16:25:08 +0200 Message-ID: <7da612e9-e9f1-0d53-8d2c-d7cececfd393@intel.com> References: <20170311011432.28962-1-kenneth@whitecape.org> <49e212f0-602a-70d4-7479-c647ee0f5277@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <49e212f0-602a-70d4-7479-c647ee0f5277@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: mesa-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org SGksCgpPbiAxNC4wMy4yMDE3IDEyOjQ4LCBFZXJvIFRhbW1pbmVuIHdyb3RlOgo+IE9uIDExLjAz LjIwMTcgMDM6MTQsIEtlbm5ldGggR3JhdW5rZSB3cm90ZToKPj4gT24gc3lzdGVtcyB3aXRob3V0 IExMQywgZHJtX2ludGVsX2dlbV9ib19tYXBfdW5zeW5jaHJvbml6ZWQoKSBoYXMKPj4gaGFkIHRo ZSBzdXJwcmlzaW5nIGJlaGF2aW9yIG9mIGRvaW5nIGEgc3luY2hyb25pemVkIEdUVCBtYXBwaW5n Lgo+PiBUaGlzIGlzIG9idmlvdXNseSBub3Qgd2hhdCB0aGUgdXNlciBvZiB0aGUgQVBJIHdhbnRl ZC4KPj4KPj4gRXJpYyBsZWZ0IGEgY29tbWVudCBpbmRpY2F0aW5nIGEgdmFsaWQgY29uY2Vybjog aWYgdGhlIENQVSBhbmQgR1BVCj4+IGNhY2hlcyBhcmUgaW5jb2hlcmVudCwgd2UgZG9uJ3Qga2Vl cCB0cmFjayBvZiB3aGVyZSB0aGUgdXNlciBsYXN0Cj4+IG1hcHBlZCB0aGUgYnVmZmVyLCBhbmQg d2hhdCBjYWNoZXMgbWlnaHQgY29udGFpbiByZWxldmFudCBkYXRhLgo+Pgo+PiBNb2Rlcm4gQXRv bSBzeXN0ZW1zIHN0aWxsIGRvbid0IGhhdmUgTExDLCBidXQgdGhleSBkbyBvZmZlciBzbm9vcGlu ZywKPj4gd2hpY2ggZWZmZWN0aXZlbHkgbWFrZXMgdGhlIGNhY2hlcyBjb2hlcmVudC4gIFRoZSBr ZXJuZWwgYXBwZWFycyB0bwo+PiBzZXQgdXAgdGhlIFBURS9QUEFUIHRvIGVuYWJsZSBzbm9vcGlu ZyBmb3IgZXZlcnl0aGluZyB3aGVyZSB0aGUgY2FjaGUKPj4gbGV2ZWwgaXMgbm90IEk5MTVfQ0FD SEVfTk9ORS4gIEFzIGZhciBhcyBJIGtub3csIG9ubHkgc2Nhbm91dCBidWZmZXJzCj4+IGFyZSBt YXJrZWQgYXMgdW5jYWNoZWQuCj4+Cj4+IEFueSBidWZmZXJzIHVzZWQgYnkgc2Nhbm91dCBzaG91 bGQgYmUgZmxhZ2dlZCBhcyBub24tcmV1c2FibGUgd2l0aAo+PiBkcm1faW50ZWxfYm9fZGlzYWJs ZV9yZXVzZSgpLCBwcmltZSBleHBvcnQsIG9yIGZsaW5rLiAgU28sIHdlIGNhbgo+PiBhc3N1bWUg dGhhdCBhbnkgcmV1c2FibGUgYnVmZmVyIHNob3VsZCBiZSBzbm9vcGVkLgo+Pgo+PiBUaGlzIHBh dGNoIGVuYWJsZXMgdW5zeW5jaHJvbml6ZWQgbWFwcGluZ3MgZm9yIHJldXNhYmxlIGJ1ZmZlcnMK Pj4gb24gYWxsIEdlbjYrIGhhcmR3YXJlICh3aGljaCBoYXZlIGVpdGhlciBMTEMgb3Igc25vb3Bp bmcpLgo+Pgo+PiBPbiBCcm94dG9uLCB0aGlzIGltcHJvdmVzIHRoZSBwZXJmb3JtYW5jZSBvZiBV bmlnaW5lIFZhbGxleSAxLjAKPj4gb24gTG93IHNldHRpbmdzIGF0IDEyODB4NzIwIGJ5IGFib3V0 IDQ1JSwgYW5kIFVuaWdpbmUgSGVhdmVuIDQuMAo+PiAoc2FtZSBzZXR0aW5ncykgYnkgYWJvdXQg NTMlLgo+Cj4gSSB0ZXN0ZWQgaXQgd2l0aCBvdXIgbm9ybWFsIHNldCBvZiBiZW5jaG1hcmtzLgo+ Cj4gVXNpbmcgRnVsbEhEIHJlc29sdXRpb24gYW5kICJoaWdoIiBxdWFsaXR5IHNldHRpbmdzLCBv biBCcm94dG9uLCBWYWxsZXkKPiBpbXByb3ZlZCBieSB+MTElIGFuZCBIZWF2ZW4gKHdpdGggdGVz c2VsbGF0aW9uIGVuYWJsZWQpIGJ5IDItMyUuCgpCU1c6IFZhbGxleSArMTAlLCBIZWF2ZW4gKzQl LiAgQmxlbmQgc2hvd2VkIHJlZ3Jlc3Npb24sIGJ1dCBpdCBjb3VsZCAKc3RpbGwgYmUgd2l0aGlu IHZhcmlhbmNlLgoKQllUOiBWYWxsZXkgKzUlLCBIZWF2ZW4gKzExJS4gIFJlc3Qgb2YgY2hhbmdl cyB3ZXJlIHdpdGhpbiBub3JtYWwgdmFyaWFuY2UuCgoKCS0gRWVybwoKPiBDYXJDaGFzZSBzZWVt ZWQgdG8gaW1wcm92ZSBhbHNvIGJ5IHNldmVyYWwgcGVyY2VudHMsIGJ1dCBldmVyeXRoaW5nIGVs c2UKPiB3YXMgd2l0aGluIG5vcm1hbCB2YXJpYXRpb24uCj4KPiBJJ2xsIGNoZWNrIEJZVCAmIEJT VyB0b28uCj4KPgo+ICAgICAtIEVlcm8KPgo+Cj4+IFNpZ25lZC1vZmYtYnk6IEtlbm5ldGggR3Jh dW5rZSA8a2VubmV0aEB3aGl0ZWNhcGUub3JnPgo+PiBDYzogQ2hyaXMgV2lsc29uIDxjaHJpc0Bj aHJpcy13aWxzb24uY28udWs+Cj4+IENjOiBtZXNhLWRldkBsaXN0cy5mcmVlZGVza3RvcC5vcmcK Pj4gLS0tCj4+ICBpbnRlbC9pbnRlbF9idWZtZ3JfZ2VtLmMgfCA4ICsrKysrLS0tCj4+ICAxIGZp bGUgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygtKQo+Pgo+PiBJdCBsb29r cyBsaWtlIE1lc2EgYW5kIEJlaWduZXQgYXJlIHRoZSBvbmx5IGNhbGxlcnMgb2YgdGhpcyBmdW5j dGlvbgo+PiAoU05BIGFuZCBBbnZpbCBkb24ndCB1c2UgbGliZHJtLCBVWEEgYW5kIHZhYXBpIGRv bid0IHVzZSB0aGlzIGZ1bmN0aW9uLikKPj4KPj4gVGhpcyBwYXNzZWQgb3VyIGZ1bGwgYmFycmFn ZSBvZiBQaWdsaXQvZEVRUC9HTENUUy9HTEVTQ1RTIHRlc3RpbmcuCj4+IGdub21lLXNoZWxsIHN0 aWxsIHdvcmtzLCBhcyBkb2VzIFVuaWdpbmUsIGFuZCBHTEJlbmNobWFyay4KPj4KPj4gSSBoYXZl bid0IHRlc3RlZCBhbnkgT3BlbkNMIHdvcmtsb2Fkcy4KPj4KPj4gZGlmZiAtLWdpdCBhL2ludGVs L2ludGVsX2J1Zm1ncl9nZW0uYyBiL2ludGVsL2ludGVsX2J1Zm1ncl9nZW0uYwo+PiBpbmRleCBl MjYwZjJkYy4uZjUzZjFmY2MgMTAwNjQ0Cj4+IC0tLSBhL2ludGVsL2ludGVsX2J1Zm1ncl9nZW0u Ywo+PiArKysgYi9pbnRlbC9pbnRlbF9idWZtZ3JfZ2VtLmMKPj4gQEAgLTE2MzAsOSArMTYzMCw3 IEBAIGludAo+PiAgZHJtX2ludGVsX2dlbV9ib19tYXBfdW5zeW5jaHJvbml6ZWQoZHJtX2ludGVs X2JvICpibykKPj4gIHsKPj4gICAgICBkcm1faW50ZWxfYnVmbWdyX2dlbSAqYnVmbWdyX2dlbSA9 IChkcm1faW50ZWxfYnVmbWdyX2dlbSAqKQo+PiBiby0+YnVmbWdyOwo+PiAtI2lmZGVmIEhBVkVf VkFMR1JJTkQKPj4gICAgICBkcm1faW50ZWxfYm9fZ2VtICpib19nZW0gPSAoZHJtX2ludGVsX2Jv X2dlbSAqKSBibzsKPj4gLSNlbmRpZgo+PiAgICAgIGludCByZXQ7Cj4+Cj4+ICAgICAgLyogSWYg dGhlIENQVSBjYWNoZSBpc24ndCBjb2hlcmVudCB3aXRoIHRoZSBHVFQsIHRoZW4gdXNlIGEKPj4g QEAgLTE2NDEsOCArMTYzOSwxMiBAQAo+PiBkcm1faW50ZWxfZ2VtX2JvX21hcF91bnN5bmNocm9u aXplZChkcm1faW50ZWxfYm8gKmJvKQo+PiAgICAgICAqIHRlcm1zIG9mIGRybV9pbnRlbF9ib19t YXAgdnMgZHJtX2ludGVsX2dlbV9ib19tYXBfZ3R0LCBzbwo+PiAgICAgICAqIHdlIHdvdWxkIHBv dGVudGlhbGx5IGNvcnJ1cHQgdGhlIGJ1ZmZlciBldmVuIHdoZW4gdGhlIHVzZXIKPj4gICAgICAg KiBkb2VzIHJlYXNvbmFibGUgdGhpbmdzLgo+PiArICAgICAqCj4+ICsgICAgICogVGhlIGNhY2hl cyBhcmUgY29oZXJlbnQgb24gTExDIHBsYXRmb3JtcyBvciBzbm9vcGluZyBpcyBlbmFibGVkCj4+ ICsgICAgICogZm9yIHRoZSBCTy4gIFRoZSBrZXJuZWwgZW5hYmxlcyBzbm9vcGluZyBmb3Igbm9u LXNjYW5vdXQKPj4gKHJldXNhYmxlKQo+PiArICAgICAqIGJ1ZmZlcnMgb24gbW9kZXJuIG5vbi1M TEMgc3lzdGVtcy4KPj4gICAgICAgKi8KPj4gLSAgICBpZiAoIWJ1Zm1ncl9nZW0tPmhhc19sbGMp Cj4+ICsgICAgaWYgKGJ1Zm1ncl9nZW0tPmdlbiA8IDYgfHwgIWJvX2dlbS0+cmV1c2FibGUpCj4+ ICAgICAgICAgIHJldHVybiBkcm1faW50ZWxfZ2VtX2JvX21hcF9ndHQoYm8pOwo+Pgo+PiAgICAg IHB0aHJlYWRfbXV0ZXhfbG9jaygmYnVmbWdyX2dlbS0+bG9jayk7Cj4+Cj4KPiBfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IG1lc2EtZGV2IG1haWxpbmcg bGlzdAo+IG1lc2EtZGV2QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+IGh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vbWVzYS1kZXYKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=