From patchwork Thu Feb 26 04:16:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Courbot X-Patchwork-Id: 443792 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 0FD8C14008F for ; Thu, 26 Feb 2015 15:17:12 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752657AbbBZERH (ORCPT ); Wed, 25 Feb 2015 23:17:07 -0500 Received: from hqemgate14.nvidia.com ([216.228.121.143]:13494 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752120AbbBZERE (ORCPT ); Wed, 25 Feb 2015 23:17:04 -0500 Received: from hqnvupgp08.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com id ; Wed, 25 Feb 2015 20:17:11 -0800 Received: from hqemhub03.nvidia.com ([172.20.150.15]) by hqnvupgp08.nvidia.com (PGP Universal service); Wed, 25 Feb 2015 20:15:49 -0800 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Wed, 25 Feb 2015 20:15:49 -0800 Received: from percival.nvidia.com (172.20.144.16) by hqemhub03.nvidia.com (172.20.150.15) with Microsoft SMTP Server (TLS) id 8.3.342.0; Wed, 25 Feb 2015 20:17:03 -0800 From: Alexandre Courbot To: Ben Skeggs CC: nouveau@lists.freedesktop.org, linux-tegra@vger.kernel.org, gnurou@gmail.com, Lauri Peltonen , Alexandre Courbot Subject: [PATCH] gr/gf100: Clear notify interrupt Date: Thu, 26 Feb 2015 13:16:48 +0900 Message-ID: <1424924208-11863-1-git-send-email-acourbot@nvidia.com> X-Mailer: git-send-email 2.3.0 X-NVConfidentiality: public MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Lauri Peltonen Notify interrupt is only used for cyclestats. We can just clear it and avoid an "unknown stat" error that gets printed to dmesg otherwise. Signed-off-by: Lauri Peltonen Signed-off-by: Alexandre Courbot --- drm/nouveau/nvkm/engine/gr/gf100.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drm/nouveau/nvkm/engine/gr/gf100.c b/drm/nouveau/nvkm/engine/gr/gf100.c index 34b6d4baea16..15620c716195 100644 --- a/drm/nouveau/nvkm/engine/gr/gf100.c +++ b/drm/nouveau/nvkm/engine/gr/gf100.c @@ -1108,6 +1108,15 @@ gf100_gr_intr(struct nvkm_subdev *subdev) engctx = nvkm_engctx_get(engine, inst); chid = pfifo->chid(pfifo, engctx); + if (stat & 0x00000001) { + /* + * notifier interrupt, only needed for cyclestats + * can be safely ignored + */ + nv_wr32(priv, 0x400100, 0x00000001); + stat &= ~0x00000001; + } + if (stat & 0x00000010) { handle = nvkm_handle_get_class(engctx, class); if (!handle || nv_call(handle->object, mthd, data)) {