From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "Alex Deucher" <alexander.deucher@amd.com>,
"Sasha Levin" <sashal@kernel.org>,
"Christian König" <christian.koenig@amd.com>,
dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org
Subject: [Nouveau] [PATCH AUTOSEL 4.4 2/2] drm/nouveau: fix dma_address check for CPU/GPU sync
Date: Mon, 28 Jun 2021 17:21:21 -0400 [thread overview]
Message-ID: <20210628212121.43749-2-sashal@kernel.org> (raw)
In-Reply-To: <20210628212121.43749-1-sashal@kernel.org>
From: Christian König <christian.koenig@amd.com>
[ Upstream commit d330099115597bbc238d6758a4930e72b49ea9ba ]
AGP for example doesn't have a dma_address array.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210614110517.1624-1-christian.koenig@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 78f520d05de9..58c310930bf2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -458,7 +458,7 @@ 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 */
@@ -478,7 +478,7 @@ 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
_______________________________________________
Nouveau mailing list
Nouveau@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/nouveau
parent reply other threads:[~2021-06-28 21:21 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20210628212121.43749-1-sashal@kernel.org>]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210628212121.43749-2-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=alexander.deucher@amd.com \
--cc=christian.koenig@amd.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nouveau@lists.freedesktop.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).