From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH] drm/i915/gem: Reduce flush_ggtt() from a wait-for-idle to a mere barrier flush Date: Wed, 20 Nov 2019 16:14:40 +0000 Message-ID: References: <20191120134113.3777499-1-chris@chris-wilson.co.uk> <0635e1d3-79c5-621a-faa5-b850386297eb@linux.intel.com> <157426575648.13839.14923384484472849836@skylake-alporthouse-com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8FDCD6E80B for ; Wed, 20 Nov 2019 16:14:43 +0000 (UTC) In-Reply-To: <157426575648.13839.14923384484472849836@skylake-alporthouse-com> 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 Ck9uIDIwLzExLzIwMTkgMTY6MDIsIENocmlzIFdpbHNvbiB3cm90ZToKPiBRdW90aW5nIFR2cnRr byBVcnN1bGluICgyMDE5LTExLTIwIDE1OjU4OjQ5KQo+Pgo+PiBPbiAyMC8xMS8yMDE5IDEzOjQx LCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4+PiBTaW5jZSB3ZSB1c2UgYmFycmllcnMsIHdlIG5lZWQg b25seSBleHBsaWNpdGx5IGZsdXNoIHRob3NlIGJhcnJpZXJzIHRvCj4+PiBlbnN1cmUgdGhhIHdl IGNhbiByZWNsYWltIHRoZSBhdmFpbGFibGUgZ2d0dCBmb3Igb3Vyc2VsdmVzLiBUaGUgYmFycmll cgo+Pj4gZmx1c2ggd2FzIGltcGxpY2l0IGluc2lkZSB0aGUgaW50ZWxfZ3Rfd2FpdF9mb3JfaWRs ZSgpIC0tIGV4Y2VwdCBiZWNhdXNlCj4+PiB3ZSB1c2UgaTkxNV9nZW1fZXZpY3QgZnJvbSBpbnNp ZGUgYW4gYWN0aXZlIHRpbWVsaW5lIGR1cmluZyBleGVjYnVmLCB3ZQo+Pj4gY291bGQgZWFzaWx5 IGVuZCB1cCB3YWl0aW5nIHVwb24gb3Vyc2VsdmVzLgo+Pj4KPj4+IEZpeGVzOiA3OTM2YTIyZGQ0 NjYgKCJkcm0vaTkxNS9ndDogV2FpdCBmb3IgbmV3IHJlcXVlc3RzIGluIGludGVsX2d0X3JldGly ZV9yZXF1ZXN0cygpIikKPj4+IEZpeGVzOiBhNDZiZmRjODNmZWUgKCJkcm0vaTkxNS9ndDogV2Fp dCBmb3IgbmV3IHJlcXVlc3RzIGluIGludGVsX2d0X3JldGlyZV9yZXF1ZXN0cygpIikKPj4+IFRl c3RjYXNlOiBpZ3QvZ2VtX2V4ZWNfcmVsb2MvYmFzaWMtcmFuZ2UKPj4KPj4gQnVnemlsbGE6ID8K PiAKPiBJdCdzIGJlZW4gaW4gQ0kgc2luY2UgYmVmb3JlIHRoZSB3L2UgKHRoZSB0ZXN0IGl0c2Vs ZiBpcyBtdWNoLCBtdWNoCj4gb2xkZXIpLCBJIGd1ZXNzIGl0IGhhc24ndCBiZWVuIHZldHRlZCB5 ZXQgYXMgbm8gYnVnIGhhcyBiZWVuIGZpbGVkLgo+ICAgCj4+IFRoaXMgdGVzdCBnZXRzIHBlcm1h bmVudGx5IHN0dWNrIG9uIHNvbWUgcGxhdGZvcm1zPwo+IAo+IEFsbCAhZnVsbC1wcGd0dCBwbGF0 Zm9ybXMuCgpIb3cgaXQgd2lsbCBjb3BlIHdpdGggYWN0dWFsIGdndHQgcHJlc3N1cmU/IFdhaXQg Zm9yIHByZXN1bWFibHkgdGhlcmUgCmZvciBhIHJlYXNvbiBhbmQgbm93IGl0IHdpbGwgb25seSBy ZXRpcmUgd2hhdCdzIGFscmVhZHkgZG9uZSBhbmQgc2VuZCBhbiAKaWRsZSBwdWxzZSBkb3duIHRo ZSBlbmdpbmVzLgoKUmVnYXJkcywKClR2cnRrbwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxp c3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2ludGVsLWdmeA== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, HK_RANDOM_FROM,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6151DC432C3 for ; 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20 Nov 2019 08:14:42 -0800 X-IronPort-AV: E=Sophos;i="5.69,222,1571727600"; d="scan'208";a="200768430" Received: from unknown (HELO [10.252.30.240]) ([10.252.30.240]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/AES256-SHA; 20 Nov 2019 08:14:42 -0800 To: Chris Wilson , intel-gfx@lists.freedesktop.org References: <20191120134113.3777499-1-chris@chris-wilson.co.uk> <0635e1d3-79c5-621a-faa5-b850386297eb@linux.intel.com> <157426575648.13839.14923384484472849836@skylake-alporthouse-com> From: Tvrtko Ursulin Organization: Intel Corporation UK Plc Message-ID: Date: Wed, 20 Nov 2019 16:14:40 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <157426575648.13839.14923384484472849836@skylake-alporthouse-com> Content-Language: en-US Subject: Re: [Intel-gfx] [PATCH] drm/i915/gem: Reduce flush_ggtt() from a wait-for-idle to a mere barrier flush X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Message-ID: <20191120161440.oLj6ebUTFswWEqsSR_N3H5v_Yl5YaBWwhYTwdx-kY28@z> Ck9uIDIwLzExLzIwMTkgMTY6MDIsIENocmlzIFdpbHNvbiB3cm90ZToKPiBRdW90aW5nIFR2cnRr byBVcnN1bGluICgyMDE5LTExLTIwIDE1OjU4OjQ5KQo+Pgo+PiBPbiAyMC8xMS8yMDE5IDEzOjQx LCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4+PiBTaW5jZSB3ZSB1c2UgYmFycmllcnMsIHdlIG5lZWQg b25seSBleHBsaWNpdGx5IGZsdXNoIHRob3NlIGJhcnJpZXJzIHRvCj4+PiBlbnN1cmUgdGhhIHdl IGNhbiByZWNsYWltIHRoZSBhdmFpbGFibGUgZ2d0dCBmb3Igb3Vyc2VsdmVzLiBUaGUgYmFycmll cgo+Pj4gZmx1c2ggd2FzIGltcGxpY2l0IGluc2lkZSB0aGUgaW50ZWxfZ3Rfd2FpdF9mb3JfaWRs ZSgpIC0tIGV4Y2VwdCBiZWNhdXNlCj4+PiB3ZSB1c2UgaTkxNV9nZW1fZXZpY3QgZnJvbSBpbnNp ZGUgYW4gYWN0aXZlIHRpbWVsaW5lIGR1cmluZyBleGVjYnVmLCB3ZQo+Pj4gY291bGQgZWFzaWx5 IGVuZCB1cCB3YWl0aW5nIHVwb24gb3Vyc2VsdmVzLgo+Pj4KPj4+IEZpeGVzOiA3OTM2YTIyZGQ0 NjYgKCJkcm0vaTkxNS9ndDogV2FpdCBmb3IgbmV3IHJlcXVlc3RzIGluIGludGVsX2d0X3JldGly ZV9yZXF1ZXN0cygpIikKPj4+IEZpeGVzOiBhNDZiZmRjODNmZWUgKCJkcm0vaTkxNS9ndDogV2Fp dCBmb3IgbmV3IHJlcXVlc3RzIGluIGludGVsX2d0X3JldGlyZV9yZXF1ZXN0cygpIikKPj4+IFRl c3RjYXNlOiBpZ3QvZ2VtX2V4ZWNfcmVsb2MvYmFzaWMtcmFuZ2UKPj4KPj4gQnVnemlsbGE6ID8K PiAKPiBJdCdzIGJlZW4gaW4gQ0kgc2luY2UgYmVmb3JlIHRoZSB3L2UgKHRoZSB0ZXN0IGl0c2Vs ZiBpcyBtdWNoLCBtdWNoCj4gb2xkZXIpLCBJIGd1ZXNzIGl0IGhhc24ndCBiZWVuIHZldHRlZCB5 ZXQgYXMgbm8gYnVnIGhhcyBiZWVuIGZpbGVkLgo+ICAgCj4+IFRoaXMgdGVzdCBnZXRzIHBlcm1h bmVudGx5IHN0dWNrIG9uIHNvbWUgcGxhdGZvcm1zPwo+IAo+IEFsbCAhZnVsbC1wcGd0dCBwbGF0 Zm9ybXMuCgpIb3cgaXQgd2lsbCBjb3BlIHdpdGggYWN0dWFsIGdndHQgcHJlc3N1cmU/IFdhaXQg Zm9yIHByZXN1bWFibHkgdGhlcmUgCmZvciBhIHJlYXNvbiBhbmQgbm93IGl0IHdpbGwgb25seSBy ZXRpcmUgd2hhdCdzIGFscmVhZHkgZG9uZSBhbmQgc2VuZCBhbiAKaWRsZSBwdWxzZSBkb3duIHRo ZSBlbmdpbmVzLgoKUmVnYXJkcywKClR2cnRrbwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxp c3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFu L2xpc3RpbmZvL2ludGVsLWdmeA==