From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 716B6C11F64 for ; Mon, 28 Jun 2021 21:25:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 510E761CBE for ; Mon, 28 Jun 2021 21:25:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238183AbhF1V1w (ORCPT ); Mon, 28 Jun 2021 17:27:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:36252 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238009AbhF1VXp (ORCPT ); Mon, 28 Jun 2021 17:23:45 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9873561D06; Mon, 28 Jun 2021 21:21:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624915273; bh=kIaYFbU2EySHbd7T6advKyzdNKMGLNOuQMH/Y3eXtBs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hDXti1R28+9gUFormnM2qaOGXuJXLxx4wY/vDGFczXiSryedPWD5AJxqBOsNoIYGT C29xVeXq8NV5bZJk5r6dZRUGmtLWFohfCsSF7n8oOKE/nJI/XJ8v26Km+aoVP9YGfP jmn2cMXE7YyqCYLsHSBtcRtQFl0SsNkToVCw0u9A1a6jlZpR1n9iAxpvRIOqR3Vofy GxwDnfQ4jHbPEhMj7kOL8J+UXWPSP9Gy3J8F0wKq0HpNsk4RGB0b8LDWAo5uwhp6+v TB5V3NehlRqCRzNxSJ1KaxqazEbPMBiPBxJqzPO+Lb+2LllCBpn5qXEkAIyVYOova5 y8sn8lh/3WajQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Sasha Levin , dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.19 2/2] drm/nouveau: fix dma_address check for CPU/GPU sync Date: Mon, 28 Jun 2021 17:21:10 -0400 Message-Id: <20210628212110.43532-2-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210628212110.43532-1-sashal@kernel.org> References: <20210628212110.43532-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Christian König [ Upstream commit d330099115597bbc238d6758a4930e72b49ea9ba ] AGP for example doesn't have a dma_address array. Signed-off-by: Christian König Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20210614110517.1624-1-christian.koenig@amd.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/nouveau/nouveau_bo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 7214022dfb91..d230536e7086 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -512,7 +512,7 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; int i; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; /* Don't waste time looping if the object is coherent */ @@ -532,7 +532,7 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm; int i; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; /* Don't waste time looping if the object is coherent */ -- 2.30.2