drm/nouveau/core/mm: modify test for if building a mm with holes in it

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

diff --git a/drivers/gpu/drm/nouveau/core/core/mm.c b/drivers/gpu/drm/nouveau/core/core/mm.c
index 6692eb4..cdd0c9a 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/core/mm.c
+++ b/drivers/gpu/drm/nouveau/core/core/mm.c
@@ -211,7 +211,9 @@ nouveau_mm_init(struct nouveau_mm *mm, u32 offset, u32 length, u32 block)
 {
        struct nouveau_mm_node *node;
 
-       if (block) {
+       if (nouveau_mm_initialised(mm)) {
+               BUG_ON(block != mm->block_size);
+       } else {
                INIT_LIST_HEAD(&mm->nodes);
                INIT_LIST_HEAD(&mm->free);
                mm->block_size = block;

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
index 2b284b1..8007f61 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c
@@ -562,7 +562,7 @@ nvc0_ram_create_(struct nouveau_object *parent, struct nouveau_object *engine,
                offset = (0x0200000000ULL >> 12) + (bsize << 8);
                length = (ram->size >> 12) - ((bsize * parts) << 8) - rsvd_tail;
 
-               ret = nouveau_mm_init(&pfb->vram, offset, length, 0);
+               ret = nouveau_mm_init(&pfb->vram, offset, length, 1);
                if (ret)
                        nouveau_mm_fini(&pfb->vram);
        }