Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751790AbdHSKmq (ORCPT ); Sat, 19 Aug 2017 06:42:46 -0400 Received: from mail-lf0-f43.google.com ([209.85.215.43]:38769 "EHLO mail-lf0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751329AbdHSKmo (ORCPT ); Sat, 19 Aug 2017 06:42:44 -0400 Subject: Re: [PATCH 2/4] gpu: host1x: Enable gather filter To: Mikko Perttunen , thierry.reding@gmail.com, jonathanh@nvidia.com Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org References: <20170818161553.27597-1-mperttunen@nvidia.com> <20170818161553.27597-3-mperttunen@nvidia.com> From: Dmitry Osipenko Message-ID: Date: Sat, 19 Aug 2017 13:42:40 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 MIME-Version: 1.0 In-Reply-To: <20170818161553.27597-3-mperttunen@nvidia.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 589 Lines: 17 On 18.08.2017 19:15, Mikko Perttunen wrote: > The gather filter is a feature present on Tegra124 and newer where the > hardware prevents GATHERed command buffers from executing commands > normally reserved for the CDMA pushbuffer which is maintained by the > kernel driver. > > This commit enables the gather filter on all supporting hardware. > > Signed-off-by: Mikko Perttunen > --- TRM says that "Invalid Gbuffer cmd" interrupt would be raised when filtering happens. Is that interrupt disabled by default or it would cause 'unhandled interrupt'? -- Dmitry