drm/nouveau: Make use of TTM busy_placements.

Previously we were filling it the same as "placements", but in some
cases there're valid alternatives that we were ignoring completely.
Keeping a back-up memory type helps on several low-mem situations.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index d8b559011777..fd17fae9369c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -76,6 +76,7 @@ struct nouveau_bo {
         struct ttm_buffer_object bo;
         struct ttm_placement placement;
         u32 placements[3];
+        u32 busy_placements[3];
         struct ttm_bo_kmap_obj kmap;
         struct list_head head;
 
@@ -1124,7 +1125,8 @@ extern int nouveau_bo_pin(struct nouveau_bo *, uint32_t flags);
 extern int nouveau_bo_unpin(struct nouveau_bo *);
 extern int nouveau_bo_map(struct nouveau_bo *);
 extern void nouveau_bo_unmap(struct nouveau_bo *);
-extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t memtype);
+extern void nouveau_bo_placement_set(struct nouveau_bo *, uint32_t type,
+                                     uint32_t busy);
 extern u16 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index);
 extern void nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val);
 extern u32 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index);