From: Dave Airlie airlied@redhat.com
[ 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-airlie... Signed-off-by: Sasha Levin sashal@kernel.org --- 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 126b3c6e12f99..f2dca41e46c5f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1194,6 +1194,8 @@ 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; }