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 D1C9EC11F66 for ; Mon, 28 Jun 2021 21:21:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AD62C61CF9 for ; Mon, 28 Jun 2021 21:21:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238010AbhF1VXq (ORCPT ); Mon, 28 Jun 2021 17:23:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:35730 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237868AbhF1VXX (ORCPT ); Mon, 28 Jun 2021 17:23:23 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6076361D03; Mon, 28 Jun 2021 21:20:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624915257; bh=uvJEh0sxCUzclhUTIdb3WixNobiqcA+N5C6zNMxBtcs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GDghOrgAGxjexYn0aH4rZguWqJav7fNkQ03GXpFl4PhPY9A3gPcd7keLU3vKi6bQu CcXB1RpifGARIAMPQ580Auhk59LbATQMWeRrDgQ8hFYqeIanITckZuzJMhGHz3FjdQ VuFAet1Ll9OSEmHKGdz/6PCz2bqbnnKGY0szDJNPBYuGMZaNghqgQE41boAugdbs3m 1g4TwhIpvrIq+iFkE4yS4YNauYrekzvkwqCFZkaDH05xKOYQnUAbOxTerVQu5o9vVw tyn8DW8GvkjVFE2cvb86XLkKyv0otRCNlBhRsbO5WwEKJnKL7qOGEktBn13S9NGrjZ DUIdBha/rie3w== 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 5.12 4/5] drm/nouveau: fix dma_address check for CPU/GPU sync Date: Mon, 28 Jun 2021 17:20:50 -0400 Message-Id: <20210628212051.43265-4-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210628212051.43265-1-sashal@kernel.org> References: <20210628212051.43265-1-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 f2720a006199..0a47a2a5553d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -549,7 +549,7 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo) struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm; int i, j; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; if (!ttm_dma->pages) { NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma); @@ -585,7 +585,7 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo) struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm; int i, j; - if (!ttm_dma) + if (!ttm_dma || !ttm_dma->dma_address) return; if (!ttm_dma->pages) { NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma); -- 2.30.2