This is a note to let you know that I've just added the patch titled
drm/nouveau: wait for moving fence after pinning v2
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-nouveau-wait-for-moving-fence-after-pinning-v2.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 17b11f71795abdce46f62a808f906857e525cea8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@xxxxxxx>
Date: Mon, 21 Jun 2021 13:36:35 +0200
Subject: drm/nouveau: wait for moving fence after pinning v2
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From: Christian König <christian.koenig@xxxxxxx>
commit 17b11f71795abdce46f62a808f906857e525cea8 upstream.
We actually need to wait for the moving fence after pinning
the BO to make sure that the pin is completed.
v2: grab the lock while waiting
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
References: https://lore.kernel.org/dri-devel/20210621151758.2347474-1-daniel.vetter@xxxxxxxx/
CC: stable@xxxxxxxxxx
Link: https://patchwork.freedesktop.org/patch/msgid/20210622114506.106349-1-christian.koenig@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_prime.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/nouveau_prime.c
+++ b/drivers/gpu/drm/nouveau/nouveau_prime.c
@@ -112,7 +112,22 @@ int nouveau_gem_prime_pin(struct drm_gem
if (ret)
return -EINVAL;
- return 0;
+ ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
+ if (ret)
+ goto error;
+
+ if (nvbo->bo.moving)
+ ret = dma_fence_wait(nvbo->bo.moving, true);
+
+ ttm_bo_unreserve(&nvbo->bo);
+ if (ret)
+ goto error;
+
+ return ret;
+
+error:
+ nouveau_bo_unpin(nvbo);
+ return ret;
}
void nouveau_gem_prime_unpin(struct drm_gem_object *obj)
Patches currently in stable-queue which might be from christian.koenig@xxxxxxx are
queue-5.4/drm-nouveau-wait-for-moving-fence-after-pinning-v2.patch
queue-5.4/drm-radeon-wait-for-moving-fence-after-pinning.patch
