drm/nouveau: rework vram init/fini ordering a little

Commit "drm/nouveau: add some debug output if nouveau_mm busy at destroy time"
revealed an issue where vram mm takedown would actually fail due to there
still being nodes present, causing nouveau to leak a small amount of memory
on module unload.

This splits TTM/nouveau_mm a bit more cleanly and ensures nouveau_mm fini
isn't done until all gpuobjs are also destroyed.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_mm.h b/drivers/gpu/drm/nouveau/nouveau_mm.h
index 1f7483aae9a4..b9c016d21553 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_mm.h
@@ -52,6 +52,7 @@ int  nouveau_mm_get(struct nouveau_mm *, int type, u32 size, u32 size_nc,
 void nouveau_mm_put(struct nouveau_mm *, struct nouveau_mm_node *);
 
 int  nv50_vram_init(struct drm_device *);
+void nv50_vram_fini(struct drm_device *);
 int  nv50_vram_new(struct drm_device *, u64 size, u32 align, u32 size_nc,
                     u32 memtype, struct nouveau_mem **);
 void nv50_vram_del(struct drm_device *, struct nouveau_mem **);