From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
bskeggs@redhat.com, daniel@ffwll.ch,
Dave Airlie <airlied@redhat.com>
Subject: [PATCH AUTOSEL 6.6 8/8] nouveau: fix disp disabling with GSP
Date: Mon, 8 Jan 2024 07:27:24 -0500 [thread overview]
Message-ID: <20240108122745.2090122-8-sashal@kernel.org> (raw)
In-Reply-To: <20240108122745.2090122-1-sashal@kernel.org>
From: Dave Airlie <airlied@gmail.com>
[ Upstream commit 7854ea0e408d7f2e8faaada1773f3ddf9cb538f5 ]
This func ptr here is normally static allocation, but gsp r535
uses a dynamic pointer, so we need to handle that better.
This fixes a crash with GSP when you use config=disp=0 to avoid
disp problems.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231222043308.3090089-4-airlied@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
index 73104b59f97fe..54a3017f4756a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c
@@ -276,7 +276,7 @@ nvkm_disp_oneinit(struct nvkm_engine *engine)
list_add_tail(&outp->conn->head, &disp->conns);
}
- if (disp->func->oneinit) {
+ if (disp->func && disp->func->oneinit) {
ret = disp->func->oneinit(disp);
if (ret)
return ret;
@@ -377,8 +377,10 @@ nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device,
spin_lock_init(&disp->client.lock);
ret = nvkm_engine_ctor(&nvkm_disp, device, type, inst, true, &disp->engine);
- if (ret)
+ if (ret) {
+ disp->func = NULL;
return ret;
+ }
if (func->super) {
disp->super.wq = create_singlethread_workqueue("nvkm-disp");
--
2.43.0
parent reply other threads:[~2024-01-08 12:28 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20240108122745.2090122-1-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=20240108122745.2090122-8-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=airlied@redhat.com \
--cc=bskeggs@redhat.com \
--cc=daniel@ffwll.ch \
--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 read-only IMAP folder(s) and NNTP newsgroup(s).