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Thu, 09 Apr 2026 02:11:42 -0700 (PDT) Received: from [192.168.0.101] ([90.240.106.137]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43d1e4e6224sm66188510f8f.25.2026.04.09.02.11.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Apr 2026 02:11:41 -0700 (PDT) Message-ID: Date: Thu, 9 Apr 2026 10:11:41 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4] drm/i915/gem: Drop check for changed VM in EXECBUF To: Joonas Lahtinen , Intel graphics driver community testing & development Cc: Direct Rendering Infrastructure - Development , =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= , Linus Torvalds , Simona Vetter , Andi Shyti References: <20260409053111.8914-1-joonas.lahtinen@linux.intel.com> Content-Language: en-GB From: Tvrtko Ursulin In-Reply-To: <20260409053111.8914-1-joonas.lahtinen@linux.intel.com> Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: base64 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Ck9uIDA5LzA0LzIwMjYgMDY6MzEsIEpvb25hcyBMYWh0aW5lbiB3cm90ZToKPiBTaW5jZSB0aGUg aW50cm9kdWN0aW9uIG9mIGQ0NDMzYzc2MDBmNyAoImRybS9pOTE1L2dlbTogVXNlIHRoZSBwcm90 by1jb250ZXh0Cj4gdG8gaGFuZGxlIGNyZWF0ZSBwYXJhbWV0ZXJzICh2NSkiKSBpdCBoYXMgbm90 IGJlZW4gcG9zc2libGUgZm9yIFZNIHRvIGNoYW5nZQo+IGFmdGVyIGNvbnRleHQgY3JlYXRpb24g c28gdGhlIGNoZWNrIHdpbGwgbmV2ZXIgZmFpbC4KPiAKPiBTaW1hJ3MgYW5hbHlzaXM6Cj4gCj4g ICAgVGhpcyBjaGVjayB3YXMgYWRkZWQgaW4gZjdjZTg2MzlmNmZmICgiZHJtL2k5MTUvZ2VtOiBT cGxpdCB0aGUgY29udGV4dCdzCj4gICAgb2JqOnZtYSBsdXQgaW50byBpdHMgb3duIG11dGV4Iikg YnV0IHdpdGhvdXQgYW55IGhpbnQgaW4gdGhlIGNvbW1pdAo+ICAgIG1lc3NhZ2UgYXMgdG8gd2h5 LiBJbiBhbm90aGVyIGh1bmsgb2YgdGhhdCBjb21taXQgdGhlcmUncyBhIGhpbnQgdGhvdWdoIGlu Cj4gICAgX19lYl9hZGRfbHV0Ogo+IAo+ICAgICAgICAgICAgLyogdXNlciByYWNpbmcgd2l0aCBj dHggc2V0LXZtICovCj4gCj4gICAgVGhpcyB3b3VsZCBtZWFuIHRoYXQgdGhpcyBidWcgd2FzIGlu dHJvZHVjZWQgaW4gZTA2OTVkYjcyOThlICgiZHJtL2k5MTU6Cj4gICAgQ3JlYXRlL2Rlc3Ryb3kg Vk0gKHBwR1RUKSBmb3IgdXNlIHdpdGggY29udGV4dHMiKSwgd2hpY2ggYWxsb3dlZCB0byBjaGFu Z2UKPiAgICB0aGUgZ2VtX2N0eC0+dm0gYXQgcnVudGltZSwgb3BlbmluZyB1cCB0aGUgcmFjZSB0 aGF0IHdhcyBwYXJ0aWFsbHkgZml4ZWQKPiAgICBpbiB0aGUgZWFybGllciByZWZlcmVuY2VkIGNv bW1pdCBhYm91dCBhIHllYXIgbGF0ZXIuCj4gCj4gICAgQnV0IGl0IGNhbm5vdCBiZSBleHBsb2l0 ZWQgYW55bW9yZSBpbiBhbnl0aGluZyByZW1vdGVseSByZWNlbnQgYmVjYXVzZQo+ICAgIHdpdGgg dGhlIGludHJvZHVjdGlvbiBvZiBwcm90by1jb250ZXh0cyB3ZSd2ZSBtYWRlIGdlbV9jdHgtPnZt IGludmFyaWFudAo+ICAgIGFnYWluLCBleGFjdGx5IHRvIHByZWVtcHRpdmVseSBjbG9zZSBhbGwg dGhlc2UgcG90ZW50aWFsIGlzc3Vlcy4KPiAgICBTcGVjaWZpY2FsbHkgZDQ0MzNjNzYwMGY3ICgi ZHJtL2k5MTUvZ2VtOiBVc2UgdGhlIHByb3RvLWNvbnRleHQgdG8gaGFuZGxlCj4gICAgY3JlYXRl IHBhcmFtZXRlcnMgKHY1KSIpIGlzIHRoZSB2bSBzcGVjaWZpYyBwYXJ0IG9mIHRoZSBwcm90by1j b250ZXh0Cj4gICAgd29yay4KPiAKPiB2MzoKPiAtIEluY2x1ZGUgU2ltYSdzIGFuYWx5c2lzIGFu ZCBXQVJOX09OX09OQ0UKPiAKPiB2NDoKPiAtIEZvY3VzIG9ubHkgb24gbGF0ZXN0IG1haW5saW5l IGNvZGViYXNlCj4gCj4gUmVmZXJlbmNlczogaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvYWxsLzIw MjYwMzI0MTUxNzQxLjI5MzM4LTEtc29zb2hlcm8yMDBAZ21haWwuY29tLwo+IFJlcG9ydGVkLWJ5 OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+IENjOiBM aW51cyBUb3J2YWxkcyA8dG9ydmFsZHNAbGludXhmb3VuZGF0aW9uLm9yZz4KPiBDYzogU2ltb25h IFZldHRlciA8c2ltb25hLnZldHRlckBmZndsbC5jaD4KPiBDYzogVHZydGtvIFVyc3VsaW4gPHR1 cnN1bGluQHVyc3VsaW4ubmV0Pgo+IENjOiBBbmRpIFNoeXRpIDxhbmRpLnNoeXRpQGtlcm5lbC5v cmc+Cj4gU2lnbmVkLW9mZi1ieTogSm9vbmFzIExhaHRpbmVuIDxqb29uYXMubGFodGluZW5AbGlu dXguaW50ZWwuY29tPgo+IC0tLQo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5MTVfZ2Vt X2V4ZWNidWZmZXIuYyB8IDIgKy0KPiAgIDEgZmlsZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKSwg MSBkZWxldGlvbigtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9nZW0v aTkxNV9nZW1fZXhlY2J1ZmZlci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5MTVfZ2Vt X2V4ZWNidWZmZXIuYwo+IGluZGV4IGJkNjA4Y2VhMzk2Zi4uNjIxZjA3YTU1YzM4IDEwMDY0NAo+ IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2dlbS9pOTE1X2dlbV9leGVjYnVmZmVyLmMKPiAr KysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9nZW0vaTkxNV9nZW1fZXhlY2J1ZmZlci5jCj4gQEAg LTg5NSw3ICs4OTUsNyBAQCBzdGF0aWMgc3RydWN0IGk5MTVfdm1hICplYl9sb29rdXBfdm1hKHN0 cnVjdCBpOTE1X2V4ZWNidWZmZXIgKmViLCB1MzIgaGFuZGxlKQo+ICAgCj4gICAJCXJjdV9yZWFk X2xvY2soKTsKPiAgIAkJdm1hID0gcmFkaXhfdHJlZV9sb29rdXAoJmViLT5nZW1fY29udGV4dC0+ aGFuZGxlc192bWEsIGhhbmRsZSk7Cj4gLQkJaWYgKGxpa2VseSh2bWEgJiYgdm1hLT52bSA9PSB2 bSkpCj4gKwkJaWYgKGxpa2VseSh2bWEpKQo+ICAgCQkJdm1hID0gaTkxNV92bWFfdHJ5Z2V0KHZt YSk7Cj4gICAJCXJjdV9yZWFkX3VubG9jaygpOwo+ICAgCQlpZiAobGlrZWx5KHZtYSkpCgpBbmFs eXNpcyByZWFkcyBjb3JyZWN0IHRvIG1lLgoKUmV2aWV3ZWQtYnk6IFR2cnRrbyBVcnN1bGluIDx0 dnJ0a28udXJzdWxpbkBpZ2FsaWEuY29tPgoKUmVnYXJkcywKClR2cnRrbwoK