From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Terje_Bergstr=F6m?= Subject: Re: [PATCHv4 3/8] gpu: host1x: Add channel support Date: Wed, 2 Jan 2013 11:43:51 +0200 Message-ID: <50E40157.9070902@nvidia.com> References: <1356089964-5265-1-git-send-email-tbergstrom@nvidia.com> <1356089964-5265-4-git-send-email-tbergstrom@nvidia.com> <50E3E45A.5050003@gmail.com> <50E3FE8C.8000309@nvidia.com> <50E3FE57.5070702@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <50E3FE57.5070702-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Zhang Cc: "thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org" , "airlied-cv59FeDIM0c@public.gmane.org" , "dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org" , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-tegra@vger.kernel.org On 02.01.2013 11:31, Mark Zhang wrote: > On 01/02/2013 05:31 PM, Terje Bergstr=F6m wrote: >> That's intentional. Writing a job to channel is atomic, so lock is t= aken >> from host1x_cdma_begin() until host1x_cdma_end(). >> >=20 > Okay. So can we consider that lock and unlock this mutex in the funct= ion > which calls host1x_cdma_begin and host1x_cdma_end, that means, in > current implementation, function "channel_submit"? Yes, exactly. Terje