drm/nouveau/fb/ram/mcp77: use carveout reg to determine size

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

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
index 8ee3d377f6f3..f56ee5527006 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
@@ -44,16 +44,15 @@ nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
         if (ret)
                 return ret;
 
-        priv->base.size = nv_rd32(pfb, 0x10020c);
-        priv->base.size = (priv->base.size & 0xffffff00) | ((priv->base.size & 0x000000ff) << 32);
+        priv->base.type   = NV_MEM_TYPE_STOLEN;
+        priv->base.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
+        priv->base.size   = (u64)nv_rd32(pfb, 0x100e14) << 12;
 
         ret = nouveau_mm_init(&pfb->vram, rsvd_head, (priv->base.size >> 12) -
                               (rsvd_head + rsvd_tail), 1);
         if (ret)
                 return ret;
 
-        priv->base.type   = NV_MEM_TYPE_STOLEN;
-        priv->base.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
         priv->base.get = nv50_ram_get;
         priv->base.put = nv50_ram_put;
         return 0;