From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Brezillon Subject: Re: [PATCH 2/6] drm: writeback: Add out-fences for writeback connectors Date: Fri, 14 Apr 2017 12:11:14 +0200 Message-ID: <20170414121114.6e6eee7a@bbrezillon> References: <1480092544-1725-1-git-send-email-brian.starkey@arm.com> <1480092544-1725-3-git-send-email-brian.starkey@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail.free-electrons.com (mail.free-electrons.com [62.4.15.54]) by gabe.freedesktop.org (Postfix) with ESMTP id 31BEF6E062 for ; Fri, 14 Apr 2017 10:11:26 +0000 (UTC) In-Reply-To: <1480092544-1725-3-git-send-email-brian.starkey@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Brian Starkey Cc: linux-media@vger.kernel.org, liviu.dudau@arm.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, laurent.pinchart@ideasonboard.com List-Id: dri-devel@lists.freedesktop.org T24gRnJpLCAyNSBOb3YgMjAxNiAxNjo0OTowMCArMDAwMApCcmlhbiBTdGFya2V5IDxicmlhbi5z dGFya2V5QGFybS5jb20+IHdyb3RlOgoKPiBBZGQgdGhlIE9VVF9GRU5DRV9QVFIgcHJvcGVydHkg dG8gd3JpdGViYWNrIGNvbm5lY3RvcnMsIHRvIGVuYWJsZQo+IHVzZXJzcGFjZSB0byBnZXQgYSBm ZW5jZSB3aGljaCB3aWxsIHNpZ25hbCBvbmNlIHRoZSB3cml0ZWJhY2sgaXMKPiBjb21wbGV0ZS4g SXQgaXMgbm90IGFsbG93ZWQgdG8gcmVxdWVzdCBhbiBvdXQtZmVuY2Ugd2l0aG91dCBhCj4gZnJh bWVidWZmZXIgYXR0YWNoZWQgdG8gdGhlIGNvbm5lY3Rvci4KPiAKPiBBIHRpbWVsaW5lIGlzIGFk ZGVkIHRvIGRybV93cml0ZWJhY2tfY29ubmVjdG9yIGZvciB1c2UgYnkgdGhlIHdyaXRlYmFjawo+ IG91dC1mZW5jZXMuCj4gCj4gSW4gdGhlIGNhc2Ugb2YgYSBjb21taXQgZmFpbHVyZSBvciBEUk1f TU9ERV9BVE9NSUNfVEVTVF9PTkxZLCB0aGUgZmVuY2UKPiBpcyBzZXQgdG8gLTEuCj4gCj4gQ2hh bmdlcyBmcm9tIHYyOgo+ICAtIFJlYmFzZSBvbnRvIEd1c3Rhdm8gUGFkb3ZhbidzIHY5IGV4cGxp Y2l0IHN5bmMgc2VyaWVzCj4gIC0gQ2hhbmdlIG91dF9mZW5jZV9wdHIgdHlwZSB0byBzMzIgX191 c2VyICoKCkRvbid0IGtub3cgd2hhdCBoYXBwZW5lZCwgYnV0IEkgc3RpbGwgc2VlIHMzMiBfX3Vz ZXIgKiB0eXBlcyBpbiB0aGlzCnBhdGNoIChJIGhhZCB0byBwYXRjaCBpdCB0byBtYWtlIGluIHdv cmsgb24gdG9wIG9mIDQuMTEtcmMxKS4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vZHJpLWRldmVsCg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.free-electrons.com ([62.4.15.54]:43144 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751350AbdDNKL0 (ORCPT ); Fri, 14 Apr 2017 06:11:26 -0400 Date: Fri, 14 Apr 2017 12:11:14 +0200 From: Boris Brezillon To: Brian Starkey Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, liviu.dudau@arm.com, laurent.pinchart@ideasonboard.com, linux-media@vger.kernel.org Subject: Re: [PATCH 2/6] drm: writeback: Add out-fences for writeback connectors Message-ID: <20170414121114.6e6eee7a@bbrezillon> In-Reply-To: <1480092544-1725-3-git-send-email-brian.starkey@arm.com> References: <1480092544-1725-1-git-send-email-brian.starkey@arm.com> <1480092544-1725-3-git-send-email-brian.starkey@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On Fri, 25 Nov 2016 16:49:00 +0000 Brian Starkey wrote: > Add the OUT_FENCE_PTR property to writeback connectors, to enable > userspace to get a fence which will signal once the writeback is > complete. It is not allowed to request an out-fence without a > framebuffer attached to the connector. > > A timeline is added to drm_writeback_connector for use by the writeback > out-fences. > > In the case of a commit failure or DRM_MODE_ATOMIC_TEST_ONLY, the fence > is set to -1. > > Changes from v2: > - Rebase onto Gustavo Padovan's v9 explicit sync series > - Change out_fence_ptr type to s32 __user * Don't know what happened, but I still see s32 __user * types in this patch (I had to patch it to make in work on top of 4.11-rc1).