From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Courbot Subject: Re: [PATCH] nouveau: add coherent BO attribute Date: Sun, 15 Mar 2015 17:41:08 +0900 Message-ID: <550545A4.6060106@nvidia.com> References: <1426228051-20298-1-git-send-email-acourbot@nvidia.com> <55033B99.4040300@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <55033B99.4040300-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Maarten Lankhorst , Ilia Mirkin , Ben Skeggs Cc: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org List-Id: linux-tegra@vger.kernel.org On 03/14/2015 04:33 AM, Maarten Lankhorst wrote: > Hey, > > Op 13-03-15 om 07:27 schreef Alexandre Courbot: >> Add a flag allowing Nouveau to specify that an object should be coherent >> at allocation time. This is required for some class of objects like >> fences which are randomly-accessed by both the CPU and GPU. This flag >> instructs the kernel driver to make sure the object remains coherent >> even on architectures for which coherency is not guaranteed by the bus. >> >> Signed-off-by: Alexandre Courbot > I don't see a problem with this patch, but similar patches to intel to libdrm have been shot down when the changes weren't in an official kernel yet, so I think this should wait until the change is at least in drm-next. ;-) Sounds good. I will ping you again once the kernel change reaches -next.