drm/nv50: fix instmem init on IGPs if stolen mem crosses 4GiB mark

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

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index 34280eb31df3..5f21df31f3aa 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -63,9 +63,10 @@ nv50_instmem_init(struct drm_device *dev)
         struct drm_nouveau_private *dev_priv = dev->dev_private;
         struct nouveau_channel *chan;
         uint32_t c_offset, c_size, c_ramfc, c_vmpd, c_base, pt_size;
+        uint32_t save_nv001700;
+        uint64_t v;
         struct nv50_instmem_priv *priv;
         int ret, i;
-        uint32_t v, save_nv001700;
 
         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
         if (!priv)
@@ -184,8 +185,8 @@ nv50_instmem_init(struct drm_device *dev)
 
         i = 0;
         while (v < dev_priv->vram_sys_base + c_offset + c_size) {
-                BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, v);
-                BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000);
+                BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, lower_32_bits(v));
+                BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, upper_32_bits(v));
                 v += 0x1000;
                 i += 8;
         }