drm/nouveau: fix gpu page faults triggered by plymouthd

The switch to separate BAR and channel address spaces made the fbcon memory
address calculation incorrect on NV50+ boards, this commit fixes that.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 326eeda6ad7f..f988362c112e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -352,8 +352,8 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
                               FBINFO_HWACCEL_IMAGEBLIT;
         info->flags |= FBINFO_CAN_FORCE_OUTPUT;
         info->fbops = &nouveau_fbcon_sw_ops;
-        info->fix.smem_start = dev->mode_config.fb_base +
-                               (nvbo->bo.mem.start << PAGE_SHIFT);
+        info->fix.smem_start = nvbo->bo.mem.bus.base +
+                               nvbo->bo.mem.bus.offset;
         info->fix.smem_len = size;
 
         info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);