From: Dave Airlie <airlied@redhat.com>
Date: Mon, 11 Mar 2024 17:20:37 +1000
Subject: [PATCH] nouveau: reset the bo resource bus info after an eviction
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References: bsc#1218260
Patch-mainline: 6.6.23
Git-commit: f35c9af45ea7a4b1115b193d84858b14d13517fc
[ Upstream commit f35c9af45ea7a4b1115b193d84858b14d13517fc ]
Later attempts to refault the bo won't happen and the whole
GPU does to lunch. I think Christian's refactoring of this
code out to the driver broke this not very well tested path.
Fixes: 141b15e59175 ("drm/nouveau: move io_reserve_lru handling into the driver v5")
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240311072037.287905-1-airlied@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Robert Frohl <rfrohl@suse.com>
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 280d1d9a559b..254d6c9ef202 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1255,6 +1255,8 @@ nouveau_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *reg)
drm_vma_node_unmap(&nvbo->bo.base.vma_node,
bdev->dev_mapping);
nouveau_ttm_io_mem_free_locked(drm, nvbo->bo.resource);
+ nvbo->bo.resource->bus.offset = 0;
+ nvbo->bo.resource->bus.addr = NULL;
goto retry;
}
--
2.43.0